CN107570233A - The micro flow control chip device of a variety of classifiable tumor marks of women is detected simultaneously - Google Patents

Abstract

The present invention relates to a kind of while detect the micro flow control chip device of a variety of classifiable tumor marks of women, belong to analysis testing field.The substrate for eight kinds of classifiable tumor markers in detecting micro-fluidic chips that women is applicable is made so that PDMS is dimethyl silicone polymer, some difficult points be present.This case main points are that substrate material is the PDMS for having ecosystem surface, and doped micro-scale titanium dioxide particle is filled with its pipeline of chip；The titanium dioxide granule is the titanium dioxide granule that its surface super hydrophilic property can be induced via advance radiation of visible light；The set in its intergranular super hydrophilic gap road of the titanium dioxide granule filler, it is compensatory, surmounted originally strong hydrophobic pipeline, thus reach constant and super hydrophilic modified effect；Meanwhile the difference of interfacial tension is induced at its head and the tail both ends of the chip with the ultrasonic wave of micropower, thereby guide sample liquid stream to be flowed along its pipeline of chip to the terminal direction.

Description

The micro flow control chip device of a variety of classifiable tumor marks of women is detected simultaneously

Technical field

The present invention relates to a kind of while detect the micro flow control chip device of a variety of classifiable tumor marks of women, belong to analysis Testing field.

Background technology

Tumor markers (tumor marker, TM) refers in the generation and breeding of tumour, by tumour cell sheet Either tumour cell is reacted and caused, a kind of material of the presence of reflection tumour and growth by body caused by body, bag Include protein, hormone, enzyme (isodynamic enzyme) and oncoprotein etc..The tumor markers in blood samples of patients or body fluid is chemically examined, can be Early detection tumour in cancer screening, and the effect of observe oncotherapy and judge patient's prognosis.Clinically commonly use at present Tumor markers has：(1) alpha-fetoprotein (AFP) is the mark of the tumours such as primary carcinoma of liver, carcinoma of testis, oophoroma；(2) cancer embryo Antigen (CEA) is the mark of the tumours such as digestive system tumor, lung cancer, breast cancer；(3) CA125 (CA125) is ovary The mark of the tumours such as cancer；(4) CA153 (CA153) is the mark of the tumours such as breast cancer；(5) CA19-9 (CA19-9) it is the mark of digestive system tumor；(6) CA724 (CA724) is the mark of the tumours such as stomach cancer, oophoroma Thing；(7) carbohydrate antigen 242 (CA242) is the mark of digestive system tumor；(8) CA50 (CA50) is digestive system The mark of the tumours such as tumour, breast cancer, lung cancer；(9) CYFRA21-1 (Cy211) is the mark of the tumours such as non-small cell lung cancer； (10) neuronspecific enolase (NSE) is the mark of the tumours such as ED-SCLC, neuroendocrine tumor；(11) before Row gland specific antigen (PSA) is the tumor markers of prostate cancer；(12) human chorionic gonadotrophin (HCG) is that embryo is thin The mark of the tumours such as born of the same parents' cancer, trophoblastic tumor (suede cancer, vesicular mole)；(13) thyroglobulin (TG) is the mark of thyroid cancer Will thing；(14) ferritin (SF) is the mark of the tumours such as digestive system tumor, liver cancer, breast cancer, lung cancer；(15) β 2- microballoons Albumen (β 2-MG) is in patient body fluids such as chronic lymphocytic leukemia, lymthoma, myeloma, lung cancer, thyroid cancer, nasopharyngeal carcinoma Middle rise；(16) squamous cell antigen (SCC) is the tumor markerses such as cervical carcinoma, lung squamous cancer, the cancer of the esophagus.Clinically detect at present The tumor markers overwhelming majority be not only present in malignant tumour, exist in benign tumour, even embryonic tissue, normal group In knitting.Therefore, tumor markers has dynamic chek and multinomial joint inspection more valuable.So for numerous tumor-markers Thing, clinically how to selectDifferent tumours understands some relatively special tumor markerses, as CA153 often appears in mammary gland Cancer；CEA often appears in intestinal cancer, stomach cancer；CA19-9 often appears in intestinal cancer, cancer of pancreas；CA125 often appears in oophoroma etc..Face Bed doctor can be according to the different mark of different tumor examinations.Same tumour or different types of tumour can have a kind of or several Kind tumor markers is abnormal；Same tumor markers can occur in different tumours.To improve the auxiliary of tumor markers Which kind of mark can carry out tumor markers joint-detection to diagnostic value as the follow-up visit monitoring index after treatment with determination, The complementary tumor markers composition best of breed of several sensitivity of reasonable selection, specific performance, carries out joint-detection.In general The joint-detection of tumor markers can improve the accuracy to diagnosing tumor.

Only with regard to Diagnostic Value of Several Serum Tumor Markers its joint-detection background of related itself general picture or overview for, can be with Referring to following Chinese invention patent application case：CN200410041175.3、CN200510026780.8、 CN200610040051.2、CN200910064647.X。

Only for the microfluidic chip technology overall general picture of itself, it is first to may refer to famous micro-fluidic expert Lin Ping Cheng The raw monograph " diagram Microfluid based Lab on a chip " gone out not long ago, the monograph is published via Science Press, the monograph for Past of microflow control technique, now, and, vision of the future etc. etc., suffer from detail, be deep into the treatise of detail Discuss.

So, the focal issue that this case that to have a talk below is paid special attention to.

The basic framework of micro-fluidic chip, including it is etched with the substrate of conduit and the cover plate to fit together therewith, institute State the fluid course on substrate, before upper cover plate is assembled, it is apparent on see to be exactly some conduits, wait until lid is covered thereon After piece, just really closure forms the fluid course, and the conduit inner surface of the conduit is together with the part that surround the conduit Cover plate forms described fluid course together；So, it is clear that assemble the fluid course after completing, its inner surface face Long-pending major part is the inner surface area of that conduit, and in other words, the state or property of the conduit inner surface are substantially determined The integrality or property of the fluid course are determined；Therefore say, the inner surface state or interior of this conduit of the structure on substrate Surface nature is key factor；In principle, any material that can be kept or keep its solid forms substantially, can be used To make substrate and cover plate, such as, the material that can act as substrate and cover plate can be monocrystalline silicon piece, quartz plate, sheet glass, height Polymers such as dimethyl silicone polymer, polymethyl methacrylate, makrolon etc.；Certainly, the selection of substrate and the choosing of cover plate Material be able to can also be differed with identical；From the point of view of material consumption, manufacture difficulty and application popularization prospect etc. etc., these Not small difference, the especially selection of that substrate between material be present, have a great influence.

In various substrate making materials, dimethyl silicone polymer, i.e. PDMS, comparatively very easily shaping, at this It is extremely simple that conduit is made on the substrate of sample, and the lower cost for material, substrate is made with the polydimethyl siloxane material, Conduit is being suppressed or etched thereon, and is being engaged with the cover plate that the cheap material such as glass or polypropylene or other plastic sheets makes, It is a kind of more satisfactory selection seemingly；Certainly, patch material can also select to use cheap polydimethyl siloxane material： So, this substrate selection is the scheme of polydimethyl siloxane material, and material is extremely cheap, and making is extremely simple, seems and should also be as It is extremely easy to popularize, promotes.

But thing is really not so simple.

First, this polydimethyl siloxane material, that is, the material that alphabetical PDMS is referred to of abridging, itself are a kind of strong Strong hydrophobic material, conduit is built on this material, if without being operated for the modified of the conduit surface, then, it is whole After body assembling is completed, that is, after covering cover plate, because the conduit its inner surface in structure occupies most fluid course Inner surface, then, its strong hydrophobic property of the PDMS conduits inner surface, is deciding factor, it can be similar to water The fine liquid stream of polar liquid of solution by becoming very difficult, its flow resistance is big, or even in general Micropump is all difficult to Promote, certainly, if cover plate also selects to use the PDMS material, then, problem is substantially identical, similar；Therefore, existing Among having technology, modification is modified particular for the conduit inner surface on the PDMS material, is necessary operation；So, this The individual modified operation for PDMS conduit inner surfaces is pretty troublesomeThat falls nor this problem, forms serious technical puzzlement, It is another problem：PDMS polymer molecules inside its body phase of this PDMS material substrate have to be diffused to the surface, moves automatically The characteristic of shifting, the characteristic that this substrate body phase inside PDMS polymer molecules are diffused to the surface, migrated automatically, will cause by table State after the modification of its inner surface of that conduit of face modifying and decorating can not maintain the sufficiently long time, and that is through surface Holding time for conduit its inner surface state after modification is substantially only sufficient to the time needs for completing laboratory internal test experiments； In other words, by surface is modified or the PDMS conduit inner surfaces of surface modification, after it is modified or institute's shape after modification is said Into surface state can not be lasting, but soon automatically tend to or say become again surface be modified before surface state, compared with The strong hydrophobic surface state of that script is returned in the short time, then, just think, such micro-fluidic chip can be big Amount making, mass storage, it is widely popularized, answer is it is obvious that is, impossible.Conduit on this PDMS material, does not do If surface modification, it can not pump and pass through similar to the fine liquid stream of polar solvent of the aqueous solution, chip also cannot just use；And such as Fruit has been cooked surface modification, can not persistently keep its state after modifying again, or equally can not popularization and application.

According to the literature, there is a kind of expedient solution, be that a small amount of surface-active is added in sample to be tested solution Agent, so as to which during test, dynamic, temporary transient effective surface hydrophilic layer is built temporarily in the PDMS conduits inner surface； However, due to the amphipathic characteristic of surfactant, the introduced surfactant of the program is inevitable simultaneously also can be with sample solution In tested composition occur combination so that tested composition can not be detected normally or it is detected ratio and dubiously dropped It is low；The surfactant is possibly even fully wrapped around by tested composition with micelle form so that tested composition can not be detected or Identification；Therefore, this kind adds the scheme of surfactant into sample solution, is far from a preferable solution.

So, how to accomplish that substrate can either be made using cheap PDMS material, and the conduit can be released Inner surface decorating state can not persistently, chip can not largely make, largely lay in and then be widely popularized and such a make this area The puzzlement that numerous professionals are entangled with for a long time, the highly difficult problem that exactly one its obvious technology barrier can not despise.

Be present many year in the highly difficult problem, so far, not yet properly settled.

Second, the PDMS material of non-surface modification, it is stated that, its surface is strongly hydrophobic above, this strong hydrophobic Material surface and also have another problem, that is, this strong hydrophobic PDMS surfaces can adsorb large biological molecule, and And these adsorbed large biological molecules can also further depression further on PDMS surfaces, gradually fall into it is gradually deep, until It is heavy to be trapped within the body phase of PDMS substrates, in fact, this process, partly it is also due to PDMS material body phase interior polymer Molecule, which has, to be diffused to the surface, caused by travel motion；Such case, it can also be explained from another angle, i.e. continue not Disconnectedly from inside PDMS body phases to those polymer molecules of its diffusion into the surface, migration, its result moved, be little by little by that It has been involved in a bit by the large biological molecule of adsorption within the body phase of PDMS substrates, briefly, these adsorbed biologies Macromolecular is exactly to be swallowed up by PDMS substrate body phases；So, this PDMS substrates body phase swallows up the phenomenon of large biological molecule, its institute Caused by influence, necessarily cause the severe deviations of all kinds of test data of experiment for being related to large biological molecule.

As described above, the problem of PDMS substrates, is, its not only adsorption large biological molecule, and swallow up biological big point Son, so, as the large biological molecule of experiment test object, its disappearance will not stop because surface saturation is adsorbed, and It is, it is constantly adsorbed, also constantly swallowed up.

On PDMS substrates, its body phase is constantly swallowed up and tests showing for associated biomolecule macromolecular in related experiment test process As, it is to say that another kind, which is explained, substantial amounts of Minute pores in PDMS body phases be present, associated biomolecule macromolecular by after adsorption, Depression enters these Minute pores, and then is swallowed up；However, inventor thinks, those can allow the sky of miniature scale Qi leel squeezes into the Minute pores therebetween, not equal to saying that they also can directly allow the large biological molecule of relative large scale to enter Enter, both difference on yardstick are huge, must not make sweeping generalizations.Explanation is bypassed, in any case, as dependence test analysis object Large biological molecule is adsorbed by PDMS substrate conduits inner surface, and then is constantly swallowed up by PDMS substrate body phases, and this is known objective Existing phenomenon.

, can be from containment PDMS surfaces pair in order to prevent swallow up effect of this PDMS substrate bodies relative to large biological molecule The absorption of large biological molecule addresses, and method is chemically modified modification aiming at the PDMS material surface, for For PDMS is the situation of substrate material, modification exactly is chemically modified to the surface of described channel portion, by chemistry The conduit inner surface of modification, can contain its absorption to large biological molecule, and then avoid large biological molecule quilt PDMS substrate body phases are swallowed up；But or that old problem, that is, the chemical modification on PDMS material surface is modified it Surface state afterwards can not persistently be kept, the polymer molecule inside the PDMS substrate body phases its diffuse to the surface, migrate automatically Process, can soon by that by surface chemical modification be modified conduit inner surface state become again script it is strong it is hydrophobic simultaneously And the state of strong adsorption large biological molecule, in other words, no matter how professionals in the field turn from side to side, the PDMS substrates its Conduit inner surface is always rapidly to strong hydrophobic surface state evolution.

So, how can either obtain that PDMS material price is extremely cheap, substrate makes extremely easy benefit, and can is enough Reach and contain the absorption process of the PDMS substrate conduit inner surfaces to large biological molecule for a long time, and then prevent PDMS substrate bodies relative The effect of swallowing up of large biological molecule so that related chip manufactured goods are able to maintain that a prolonged enough, rational shelf-life, It is exactly a very intractable problem.The problem equally makes this area numerous specially as another problem addressed above Industry personnel are entangled with, perplexed for a long time, and the problem is equally the highly difficult problem that its obvious technology barrier can not despise.Should Also be present many year in problem, so far, also not yet properly settled.

Third, the polydimethyl siloxane material, namely PDMS material, the active force very little wherein between polymer molecule, The polymer molecule of low polymerization degree inside its body phase is in constantly into the dynamic process of surface migration, therefore, includes PDMS After it has been formed, the surface topography in its inner-walls of duct face of chip can be because of described low polymerization degree polymer point for the chip of substrate material Son moves about, pours into the surface and change, and the change of its pattern is somewhat similarly to Rheological Deformation, trickling deformation or creep and become Pattern caused by shape institute is possible changes；In the higher PDMS material of some low polymerization degree component ratios, this kind somewhat similar Can be showed in the phenomenon of Rheological Deformation, trickling deformation or the deformation of creep must be than more significant；This kind include PDMS substrates chip its The dynamic of inner-walls of duct surface topography after shaping changes property, namely the described property or stream that are somewhat similarly to Rheological Deformation Dropping down the property of deformation or the property of the deformation of creep, the word of rheology one is applied mechanically in this case, integration, also referred to as the rheological equationm of state or rheology become Shape property, the dynamic of corresponding inner-walls of duct face pattern change, and this case is also referred to as rheology；As described above, because of this kind of material Expect certain Rheological Deformation property as described above that its own has, its manufactured goods actually can at leisure Rheological Deformation and cause The manufactured goods total form generation changes；Influence caused by its Rheological Deformation property, it is to be not easy to feel in terms of macroscopic perspective Examine, still, for the very fine micro-fluidic chip of its internal structure, the rheological equationm of state can but cause bigger shadow Ring, the fluid course namely the pipeline therefore, during pre-production formed, because the wall of its tube chamber of pipeline is main It is the wall of PDMS materials, so, the cross-sectional area of the pipeline actually can gradually become because of rheology over time It is small, stated differently, since the reason for the rheology, the natively finer pipeline that is flowed through for liquid sample Its tube chamber the more can become the more narrow, in the case of flow time is sufficiently long, or even the pipeline tube chamber can partly close or all Ground closes, and then make it that sample fluid course is thoroughly blocked, and closes with being even also not reaching to its luminal part of pipeline The degree closed or fully closed, its fluid passage that can be provided of that pipeline narrow because of rheology, then, in pipeline Its inner surface originally be exactly strongly it is hydrophobic in the case of, aqueous sample liquid is just more difficult to by becoming more so because of rheology Narrow micro-channel, then, the influence of substrate rheology how is resisted, maintains the basic framework of the pipeline not occur seriously to become for a long time The problem of shape, also, keep the long-term unobstructed of the pipeline is exactly a urgent need to resolve.

The content of the invention

The technical problem to be solved by the invention is to provide a package solution, solves totally above A series of problems addressed, also, the solution is applied to a kind of new being directed to of structure and belongs to women physical examination spy Do not need to pay close attention to seven kinds carry out the micro-fluidic chip dress of examination simultaneously while detection than more typical primary tumor mark Put.

The present invention solves the technical problem by following scheme, and the device that the program provides is one kind while detects women The micro flow control chip device of a variety of classifiable tumor marks, it is characterised in that the structure of the device includes multichannel micro-fluidic core Piece, the structure of the micro-fluidic chip include being bonded to each other the substrate and cover plate of installing together, and the substrate and cover plate are plate The conduit knot via mould pressing process or etching technics formation is contained in shape thing or tablet, that face towards the cover plate of the substrate Structure, the substrate also containing be connected with the channel structure and pierce the substrate via mould pressing process, etching technics or simply beat The window structure that hole technique is formed, it is bonded to each other the substrate being installed together and has been built into jointly with the cover plate and contain pipeline knot The micro-fluidic chip of structure and the liquid pool structure being attached thereto, the locations of structures of the pipeline are located at the substrate and mutually pasted with the cover plate The interface zone of conjunction, its side of the window is blocked by the cover plate and opposite side opens, and the locations of structures of the window is exactly the liquid The locations of structures in pond, the liquid pool have two kinds, two kinds of liquid pools respectively be positioned at different structure position sample introduction end liquid pool and Terminal liquid pool, the sample introduction end position of the micro-fluidic chip have one or more sample introduction end liquid pool, the sample introduction end The injection end position of detected solution during the micro-fluidic chip actual sample introduction is referred to, is then had in the terminal location of the micro-fluidic chip One terminal liquid pool, the terminal refer to the end of liquid flowing in its chip when the actual sample introduction of the micro-fluidic chip is tested End position, the terminal are located remotely from each other with the sample introduction end, one end of the pipeline and the sample introduction end liquid pool UNICOM positioned at sample introduction end, The other end of the pipeline and the terminal liquid pool UNICOM of the terminal positioned at the micro-fluidic chip, and, it is sequentially or inverse The working electrode that is respectively installed in sequence in the pipeline on diverse location and to electrode and reference electrode, what the order referred to Be its locations of structures of the reference electrode closer to the terminal location, the backward refers to the reference electrode locations of structures Closer to the sample introduction end position, the working electrode is by conductive electrode and the embedding being attached on the conductive electrode The gold size sensitive membrane of tumor markers antibody is formed, and parallel construction, the pipeline in parallel construction is presented in the construction of the pipeline It is made up of eight lateral parallel connections, its appearance profile of the pipeline of the presentation parallel construction is similar to the wheel of parallel circuit Exterior feature, the quantity of the working electrode is eight, and the installation position of eight working electrodes is located at eight laterals respectively It is interior, and, the tumor markers antibody in its top layer gold size sensitivity membrane structure of eight working electrodes is to tumor-marker respectively Eight kinds of tumor markers antibody materials that thing antigen can be specifically bound, eight kinds of antibody materials are tumor markers antibody respectively CA199, CA153, CA125, CA242, AFP, CEA, EB and β-HCG, the antigen are the antigen of broad sense, and the antibody is wide The antibody of justice, its material of the working electrode are argent material, gold material, carbon material or thermal decomposition conducting polymer material Column, sheet or thread is presented in matter, its pattern of the working electrode, and its material of the substrate is dimethyl silicone polymer material, should Its surface of substrate is the surface of primary form, the surface of the primary form its be intended to refer to and do not repaiied by any surface chemistry The surface of the primary form of decorations or the material of any surface chemical modification, the structure of the device also include elastic clip, the elastic force Two opposite clamping limb snap-in locations of folder are in the position of the neighbouring terminal of the micro-fluidic chip, and at least in one Fixation is attached on the individual clamping limb and is equiped with miniature ultrasonic transducer units, and, higher-order of oscillation electric signal transmission cable, the height Frequency vibration swings one end of electric signal transmission cable and the miniature ultrasonic transducer units link together；The elastic clip provides a side Just the function that the device is disassembled；Its major function of the miniature ultrasonic transducer units be in the test of micro-fluidic chip actual sample introduction, Utilize the sample introduction end and the distance between the terminal and the miniature ultrasonic transducer units installation position difference and its institute The difference on ultrasonic intensity experienced, its interfacial tension of sample introduction end described in induced synthesis and the terminal its interfacial tension it Between difference, the interfacial tension difference between the micro-fluidic chip both ends can be formed between the both ends of the micro-fluidic chip Pressure gap, the pressure gap can drive sample solution to the end flow；The polydimethylsiloxanes that are soft and having elasticity Its function of the substrate of alkane material is also included with its property to the strong absorption of ultrasonic wave, and ultrasonic wave is absorbed strongly, and by This realizes the fast express delivery of ultrasonic intensity within micro-fluidic chip terminal to the limited short distance between the sample introduction end Subtract；And many titanium dioxide granules, many titanium dioxide granules are filled in the pipeline, its pipe of the pipeline Chamber is filled up by many titanium dioxide granules, its particle size range of the titanium dioxide granule between 10 microns with 200 microns it Between, the titanium dioxide granule is the titanium dioxide granule by doping vario-property, the titanium dioxide granule be titanium dioxide content its Particles of inorganic material of the shared percentage by weight more than 80%, the titanium dioxide granule are photic super hydrophilic titanium dioxide granules, Its function of the titanium dioxide granule, which includes it, to be formed by receiving advance radiation of visible light with super hydrophilic property Titanium dioxide granule surface.

Its particle diameter of the titanium dioxide granule can be that the basis between 10 microns and 200 microns is actually needed and any The particle diameter specified, such as 10 microns, 30 microns, 70 microns, 100 microns, 150 microns or 200 microns of the particle diameter, etc..

The scope of further preferred its particle diameter of the titanium dioxide granule is between 100 microns and 200 microns.

Its pattern of the titanium dioxide granule is unlimited, and the titanium dioxide granule for example can be spheric granules, rod-shaped particles, length Cube shape particle or any amorphous granular.

As described above, its composition adulterated of the titanium dioxide granule can be tungsten oxide (WO₃), tin oxide (SnO₂), five V 2 O (V₂O₅), iron oxide (Fe₂O₃) zinc oxide (ZnO), the silver (Ag) of reduction-state or two or more above-mentioned doping components Composition；Said composition can be the composition of any ratio of two or more above-mentioned doping components.

Its composition adulterated of the titania particulate material can also include titanium dioxide (SiO₂)。

Titania particulate material described in this case refers to the photic super hydrophilic titania particulate material of visible light-inducing.

Only with regard to the photic super hydrophilic titanic oxide material of various visible light-inducings for itself, for photic super hydrophilic material It is known for the professional of research field.

Only with regard to the technology of preparing of the photic super hydrophilic titanic oxide material of various visible light-inducings for itself, for photic It is known for the professional in super hydrophilic investigation of materials field.

The preferred scope of its internal diameter of pipeline is between 500 microns and 1000 microns；It is but excellent compared to above-mentioned The internal diameter of the pipeline scope of choosing, more tiny internal diameter of the pipeline or thicker internal diameter of the pipeline are also what this case was allowed.

The tumor markers antibody is the antibody of broad sense, and the antibody of the broad sense refers to possessing antibody function or functionally Can occur to combine with tumor markers involved by various corresponding clinics and form immune complex or exempt from similar to antibody The material of the analog of epidemic disease compound；The tumor markers antigen is the antigen of broad sense, and the antigen of the broad sense refers to can Using corresponding antibodies or the material for being functionally similar to antibody need to differentiate, detect involved by the various clinics of enzyme mark detection Tumor markers.

Described miniature ultrasonic transducer units can certainly be all installed on two clamping limbs；But only install one Miniature ultrasonic transducer units are dealt with and used enough.

The word of elastic clip one art-recognized meanings of itself are known.

The gold size sensitive membrane is to be sufficiently mixed chitosan gold size solution and tumor markers antibody-solutions uniformly, is used a little Sample instrument point sample is coated on specified structure position, and forms its drying and forming-film.Tumor markers in the gold size sensitive membrane Antibody is the tumor markers antibody of horseradish peroxidase or glucose oxidase mark, and the gold size sensitive membrane has been wrapped Containing introducing complementary medium therein for the above-mentioned each tumor markers antibody of fixation, the complementary medium such as chitosan, Cellulose acetate, gelatin be therein a kind of or their mixture.

The pipeline in the microfluidic chip structure includes the lateral, and its internal diameter size may each be any Selected size, still, for using prepare liquid sample less as far as possible and reducing the consideration of reagent loss etc., the pipeline includes The passage of the preferred capillary level of lateral, the passage of the capillary level imply that its internal diameter and the capillary on ordinary meaning The suitable passage of the internal diameter of pipe.The shape of cross section of its inner passage of capillary can be arbitrary shape, described transversal Face shape is for example circular, oval, square, rectangle, bar shaped, naturally it is also possible to be the linear of bending, also, institute arbitrarily be present The interior shape of capillary is stated with the extension of pipeline, the shape of cross section of different parts can also allow to be different shapes. Only for the word of capillary one, its art-recognized meanings is known.

What is be related in structure is the electrode of microsize to electrode and reference electrode, and its electrode shape, which may each be, appoints The selected shape of meaning, the arbitrarily selected shape such as column, sheet, strip or thread etc..It is described to electrode and institute The art-recognized meanings for stating the reference electrode vocabulary of itself are known.

It is related to several liquid pools in this case microfluidic chip structure, the liquid pool is the pond shape or capsule for transitional liquid storage Shape constructs, and its shape of the inner chamber of each liquid pool may each be arbitrarily selected shape, and the cavity shape is for example round Cylindrical cavity shape, square column type cavity-like, oblong cavity shape or spherical hollow space shape etc..

Only for professional of the word of ultrasonic transducer one art-recognized meanings of itself for ultrasonic technology field, It is known.

Various sizes, variously-shaped ultrasonic transducer are commercially available；Its size of commercially available miniature ultrasonic transducer units It may diminish to the magnitude only calculated with millimeter.

Only with regard to miniature ultrasonic transducer units its technique for fixing on general industry application solid body surface its It is known general technology for the professional in ultrasonic technology field for body.This case is not to this expansion superfluous words.

Only with regard to naked PDMS substrates itself conduit molding or lithographic technique for, be open-and-shut known technology； Similarly, the technology of hole-opening is even more known simple technique on naked PDMS substrates.This case is not also to this expansion superfluous words.

The industrial products market of involved its all size of higher-order of oscillation electric signal transmission cable is on sale.

The structure of the device can also include higher-order of oscillation electric signal generator；The higher-order of oscillation electric signal transmission cable Its other end can be connected with the higher-order of oscillation electric signal generator.

The involved higher-order of oscillation electric signal generator technology of itself, come for the professional in ultrasonic technology field Say, be simple and known；The higher-order of oscillation electric signal generator can customize to ultrasonic instrument specialized factory.

The preferred scope of its specified ultrasonic wave transmission power of the miniature ultrasonic transducer units is between 5 milliwatts and 5000 milliwatts Between；The preferred scope of the frequency of its ultrasonic wave operationally launched of the miniature ultrasonic transducer units be between 100KHz with Between 12MHz.

This case device can further include some annexes certainly, and the annex is such as multiple tracks electrochemical workstation Deng the art-recognized meanings of the multiple tracks electrochemical workstation are known.The each work being related in this case microfluidic chip structure Electrode and to electrode and reference electrode etc., special it can get lines crossed and the multiple tracks electrochemical workstation via corresponding respectively The corresponding interface coupled.It is described that special to get lines crossed be for by each phase of each electrode and the multiple tracks electrochemical workstation Answer the private cable that interface is coupled to each other.The micro-fluidic chip in this case device, its structure can also include micro-valve, The quantity of the micro-valve is unlimited, and according to being actually needed, the micro-valve can be installed in any need in the microfluidic chip structure Position to be mounted；The word of micro-valve one is for the professional of micro fluidic chip technical field, the art-recognized meanings of itself It is known；The micro-valve itself manufacturing technology and the use of technology is also known；The component that the micro-valve is not required.

The diameter of the working electrode can allow to be that any setting is easily installed the suitable diameter used, still, It is recommending or say preferable its scope of the diameter between 0.1 micron to 2000 microns；The length of the working electrode can To allow to be that any setting is easily installed the length used, it is however recommended to or to say the preferable length its scope be 1 Micron is between 15000 microns.

It is installed in by spraying or point sample instrument point sample or the coating of other appropriate process described in the working electrode surface layer Gold size sensitive membrane, its thicknesses of layers can allow be any setting treat sample measuring liquid occur electrical signals response thickness, It is however recommended to thickness preferable thickness is between 10 nanometers and 200 nanometers in other words.

The cover plate in chip structure, its material can allow to be any electrical insulating property material, such as：Polypropylene, Glass, polymethyl methacrylate, dimethyl silicone polymer, etc., in order to make smaller size of micro-fluidic chip, for example do Into the micro-fluidic chip of only 2.0 centimetres to 3.0 centimetres of super-small of length, and realized in the extremely short distance to ultrasonic wave Extremely fast decay, can preferably dimethyl silicone polymer be used as cover plate.Certainly, selected on large-sized micro-fluidic chip Using dimethyl silicone polymer it is used as the cover plate, and this case technical scheme is allowed.

The preferred scope at the distance between the terminal and the sample introduction end is between 3 centimetres and 10 centimetres.

Described its thickness of cover plate and substrate can allow be any setting the thickness for being easy to assembling, the thickness of recommendation or say Preferable thickness is between 1.0 millimeters and 5.0 millimeters.Less thickness is advantageous to save material.

Its maximum difference in application method of this case micro-fluidic chip and general micro-fluidic chip, is exactly this case miniflow Control chip its before biological detection operation is applied to, it is necessary in advance with the radiation of visible light micro-fluidic chip its pipeline The titanium dioxide granule of filling；Because micro-fluidic chip is transparent or translucent state in most cases, and due to The pipeline is fine enough, and its internal titanium dioxide granule filler is also to belong to finer form, it is seen that light also can Inject with enough penetrating or partial penetration inject fine titanium dioxide granule filler its entity of the form, therefore, can at this See in the photic super hydrophilic step of photoinduction, directly with its entirety of the radiation of visible light micro-fluidic chip, it is possible to reach and be directed to Titanium dioxide granule filler inside its pipeline carries out the effect of radiation of visible light；The photic super hydrophilic step of the visible light-inducing Suddenly can be a few minutes or several days before using this case micro-fluidic chip progress biological detection or more than ten days or twenties It is completed.

The light irradiation duration of the radiation of visible light step can be a few minutes to more than ten hour.

The lead of the radiation of visible light step, and, the irradiation duration of the radiation of visible light step is, it is necessary to micro- according to this The species of specific dopant of the titanium dioxide granule filler filled in fluidic chip, the amount of dopant and specific Its parameters of preparation process and its super hydrophilic state formed retain duration to determine.

After described advance radiation of visible light step is passed through, remaining specific detection of the micro-fluidic chip makes With step by hereafter sketching；In other words, hereafter refer to using step and method refer to experienced it is advance described Remaining operation after radiation of visible light.

Itd is proposed first based on this case and the first public new liquid stream driving principle, its application of this case micro-fluidic chip are transported Among work, the new liquid stream driving method is determined completely without involving any additional Micropump.

The interfacial tension difference that this case is formed between micro-fluidic chip both ends caused by the ultrasonic wave, Driving liquid stream flows in the capillary channel of eight channel microfluidic chip, right respectively using eight passage electrochemical analytical instruments Eight kinds of classifiable tumor mark diagnostic antigens are detected.

The specific detection of this case micro-fluidic chip is as follows using step：

1st, blood serum sample liquid is added in micro-pipe road, under ultrasonic wave driving, various tumor markers antigen molecules The tumor markers antibody of the corresponding horseradish peroxidase-labeled embedded by gold size sensitive membrane on electrode surface in each passage Capture.

2nd, the tumor markers antibody of horseradish peroxidase-labeled is formed with the tumor markers antigen in blood serum sample Immune complex.

3rd, using multi-channel electrochemical analyzer, the electron mediators such as catechol are added, it is above-mentioned using amperometric detection Curent change caused by reaction, it is derived from the species and content of various analytes.

4th, result is subjected to comprehensive analysis, comprehensive diagnos is carried out to tumor markers antigen.

It is an advantage of the invention that in elastic force described in the terminal of the micro-fluidic chip its close position snap-in location Folder, and installation miniature ultrasonic transducer units are attached on the clamping limb of the elastic clip, launched with the miniature ultrasonic transducer units The ultrasonic wave of low-power, high-frequency band, meanwhile, using its strong absorbability to ultrasonic wave of dimethyl silicone polymer substrate, In shorter distance, it is, from the terminal to the very short distance of only several centimeters yardsticks the sample introduction end It is interior, reach the rapid decrement of ultrasonic intensity, the difference of the interfacial tension is thereby caused at the both ends of the micro-fluidic chip It is different, and then, using the pressure gap between its both ends for being formed of the difference of the interfacial tension between the both ends, drive sample Liquid stream flows in the pipeline to the terminal direction.By this case liquid stream drive scheme, altogether dispense with traditional sense Micropump etc equipment；The micro-fluidic chip of Micropump is eliminated, its structure is more succinct, and its production process is less, and it is fabricated to This is lower, and this kind of succinct structure is more beneficial for the low cost application for reaching micro-fluidic chip.

Its scheme of this case is all to use all clearance spaces in the pipeline in addition to electrode installation takes up space The titanium dioxide granule fills up.Those are filled in the titanium dioxide granule in pipeline, and this case is to its overall abbreviation titanium dioxide Granule filler, its function include support, withstand the tube chamber of the pipeline its inwall so that the tube chamber of the pipeline is from because described in Rheology and narrow, prevent its reduced cross-sectional area of the tube chamber of the pipeline or even close, so as to maintaining the basic of the pipeline for a long time Serious deformation does not occur for framework.

Numerous titanium dioxide granule entities are mutually banked up under this case framework together at random in the pipeline, the titanium dioxide The function of titanium granule filler, having for the titanium dioxide granule for also including living through advance radiation of visible light with it certainly are super The particle surface of hydrophilic nmature, utilize the mutual institute that is mutually close together by ultra-hydrophilic surface of each adjacent titanium dioxide granule The complications of formation are continuous and its inner surface has the space of super hydrophilic property, in the pipeline Inner Constitution network morphology Fluid channel with super hydrophilic property, although the fluid channel with super hydrophilic property that this complications can be continuous all the time, So, inside the tube chamber of the pipeline simultaneously and a plurality of fluid channel with super hydrophilic property deposited its integrate, The effect of integrated, cumulative superposition in other words, is the equal of that the relatively fine capillary with Superhydrophilic of caliber leads to Road；Its presence of the continuous super hydrophilic fluid channel of the complications, its Superhydrophilic to a large extent in other words completely, Thoroughly overcome, surmounted in degree, counteracting the strong hydrophobic property in its surface of the PDMS substrates of the primary form and made Into the flow resistance for liquid sample；In other words, it is water that because of liquid sample, it, which accounts for the composition of maximum ratio, liquid sample It is exactly substantially the aqueous solution, therefore, the presence of the titanium dioxide granule filler can be significantly complete, thorough in other words Overcome in the degree at bottom with the unmodified PDMS substrates of hydrophobic property and surface its to the aqueous solution it is incompatible, repel and Barrier effect, so be greatly reduced belong to properties of Aqueous Solution sample liquid stream its be advanced through the resistance of pipeline, its flow Dynamic resistance be possibly even less than or well below the aqueous solution similar caliber the unorganic glass using titanium dioxide as main component Flow resistance in capillary.

Under this case framework, inside the tube chamber of the pipeline, the area of its lumen wall wall of former pipeline, because of described two The rigid of titan oxide particles filler ties up, the table of part hydrophobic property that still can also be exposed on lumen wall wall Its area of face is already dramatically reduced, and the area on its still exposed part surface for belonging to hydrophobic property is much Less than the wall surface area of the hydrophobic property of the lumen wall wall in the presence of no titanium dioxide granule filler； So, under this case framework, in its lumen of the pipeline, its remaining hydrophobic surface and formed after advance radiation of visible light Super hydrophilic part increases surface newly, and that it is superimposed, comprehensive, summation, cumulative technique effect, is to form on the whole In super hydrophilic surface；In other words, inside the tube chamber of the pipeline, the part surface of remaining hydrophobic property its with examination Interfacial tension between sample solution, plus the super hydrophilic part formed after advance radiation of visible light increase newly surface its with Interfacial tension between sample solution, that it is superimposed, comprehensive, summation, cumulative technique effect, is so that the pipeline The synergy of its solid-liquid interfacial tension levels off between its tube chamber inner surface of capillary glass tube and sample solution inside tube chamber Interfacial tension, it is even lower；In other words, as the above-mentioned interfacial tension in this case of the cumulative technique effect actually Be level off to the aqueous solution and with super hydrophilic property the surface of solids between that interface interfacial tension.

Therefore, exist in the pipeline under this case framework for having stated titanium dioxide granule filler, in advance to core In the case that its titanium dioxide filler of piece has carried out radiation of visible light, in other words, it is, because micro-fluidic chip is general For transparent or semitransparent state is integrally presented, therefore, in the case where having carried out radiation of visible light to chip in advance, based on this The new liquid stream drive scheme of case, it becomes possible to reached with extremely low ultrasonic power by the actuation techniques scheme of this case to examination The driving of sample liquid stream.

On the other hand, due to its rheological equationms of state of PDMS as substrate material, it is filled in the pipeline The titanium dioxide granule filler, can gradually by constantly Rheological Deformation and to arest neighbors free space promote PDMS materials Pipeline wall more tightly wrap up, this process eventually causes those part titanium dioxides for pressing close to the lumen wall wall Titanium particle is stuck in original place or is stuck in original place or embedding in-situ titanium dioxide granule and remaining embedded in original place, the part The titanium dioxide granule banked up with being mutually closely packed together each other incarceration together, due to this reason, the dioxy Change titanium granule filler just will not move in the pipeline easily, and titanium dioxide granule therein is also substantially all locked In original place, therefore the stream framework of the micro-fluidic chip can be kept for a long time.

The particle size range of its particle of this case titanium dioxide granule filler between 10 microns and 200 microns, compared to For general organic molecule, general large biological molecule, the particle diameter of its particle of this case titanium dioxide granule filler can be rated as huge Greatly, due to its huge particle diameter, and the inner surface of the surface of its polarity and the pipeline of strong hydrophobic PDMS materials can not Mutually perhaps say and mutually melt, then, the huge titanium dioxide granule of this kind of particle diameter can not be by the pipeline of PDMS materials Surface is adsorbed, and can not more be swallowed up by the inner surface of the pipeline of PDMS materials, the huge titanium dioxide of this kind of particle diameter Titanium particle surely not be fully sunk in easily or sink to completely PDMS materials its among intrinsic many Minute pores, and Because above it is stated that the rheology the reason for, the titanium dioxide granule filler can be stuck in original place in other words it is embedding In original place without moving easily.

Inside the tube chamber of the pipeline, its lumen wall wall of former pipeline is entirely the surface of hydrophobic property originally, such as Upper described, under this case framework, rigid because of the titanium dioxide granule filler ties up, on lumen wall wall still also Its area of the surface of part hydrophobic property that can be exposed is already dramatically reduced, and it is still exposed to belong to hydrophobicity The area on the part surface of matter has been far smaller than the tube chamber in the presence of no titanium dioxide granule filler The wall surface area of the hydrophobic property of inwall wall；The reason for because of the rheology, it is close to those dioxies of lumen wall wall Change titanium particle, be little by little partially embedded into or be partly absorbed among the lumen wall wall, the dioxy among the state Changing titanium particle, it towards the part surface of lumen wall wall and has occurred and that the lumen wall wall that matching deforms is tight Closely connected conjunction, then, the matching is deformed and closely pasted with titanium dioxide granule surface having occurred and that in lumen wall wall The part wall of conjunction actually can not contact with flowing through the sample solution of pipeline, that is to say, that the wall base of this part In sheet can not suction-operated be produced to the large biological molecule therein that flows through the sample solution of pipeline and organic molecule.Base In above-mentioned mechanism, then because fill up the pipeline the titanium dioxide granule filler its presence, its tube chamber of the pipeline The overwhelming majority of inwall wall is tightly covered, and these described walls tightly covered substantially can not be with Flow through the pipeline sample solution contact, only remaining fraction by titanium dioxide granule, its surface is not pasted closely The hydrophobic surface close, tightly covered may contact with sample solution, in other words, under this case framework, the life in sample solution Its direct touch opportunity with hydrophobic PDMS walls of thing macromolecular and organic molecule is significantly reduced, thus, PDMS materials Its adsorptive hindrance and interference of swallowing up to large biological molecule and organic molecule of lumen wall face is greatly reduced；As above institute State, this case scheme is advantageous to exclude the adsorptive hindrance and swallows up interference, is advantageous to lift the reliable of correlation analysis test data Property.

As described above, this case titanium dioxide granule filler, its function actually includes being similar to being directed to PDMS materials Inner surface of pipeline carry out chemical modification effect, functioning as its this respect is by the inner surface of pipeline of the PDMS materials By the surface modification of hydrophobic property into the surface of super hydrophilic property, still, with general, usual PDMS surface chemical modifications its The hydrophilic chemical decorative layer retention time is short, hydrophilic effect can not keep situation prolonged enough different, particle described in this case The huge titanium dioxide granule filler in footpath, its particle being stuck by rheology can not both be moved easily, its huge particle diameter Particle can not more be swallowed up easily by the inner-walls of duct of PDMS materials, therefore, its from this respect changes similar to surface chemistry Seen on the technique effect of property, its technique effect of this case, be form it is permanent, can not erase, can not consume, not be corroded, no The surface reforming layer with super hydrophilic property being swallowed up, being not dissolved, it is just comparable to one kind in PDMS in effect The permanent modified surface layer with super hydrophilic property built in its relevant surfaces of base material.

It is related that the technical scheme of this case has dissolved its application to dimethyl silicone polymer substrate addressed above totally A series of technical barriers.Based on this case scheme, the very cheap polydimethyl siloxane material of this kind is just possible to micro- at this It is prepared by fluidic chip, production, using etc. field play bigger effect.

The miniature ultrasonic transducer units have been installed in fixation on the elastic clip its clamping limb in this case structure, and the structure carries A function of facilitating the device to disassemble is supplied, in this way, the elastic clip just can together with miniature ultrasonic transducer units appended thereon It is enough to be easily mutually disengaged with the micro-fluidic chip, then, the component that the part can freely depart from just can circulate benignly it is heavy It is multiple to use many times；The architectural feature is advantageous to save the use cost of the device.

The framework of its large-scale integrated of this case micro-fluidic chip, it is determined among actual test application, to serum The requirement of sample is smaller, and this contributes to the body and mind damage for reducing related subject.

Brief description of the drawings

Fig. 1 is its rough outside side view of this case device.

In figure, 1 is elastic clip, and 2,7 be two clamping limbs of elastic clip respectively, and 3 be the terminal of the micro-fluidic chip, 4 be the sample introduction end of the micro-fluidic chip, and 5 be the substrate of dimethyl silicone polymer material, and 6 be cover plate, and 8 be miniature ultrasonic Transducer, 9 be higher-order of oscillation electric signal transmission cable, and 10 be tension spring；The spring clamp structure in legend is only signal Legend structure, actual spring clamp structure are not limited to the legend spring clamp structure；Arrow in legend indicates the micro-fluidic core Piece its in actual motion, by pressure at two ends difference drive, the flow direction of its sample liquid stream.

Embodiment

In this case that Fig. 1 is shown embodiment, its main points of the example are that the structure of the device includes multichannel micro-fluidic Chip, the structure of the micro-fluidic chip include being bonded to each other the substrate 5 and cover plate 6 of installing together, the substrate 5 and cover plate 6 It is plate object or tablet, that face towards the cover plate 6 of the substrate 5 is contained to be formed via mould pressing process or etching technics Channel structure, the substrate 5 also containing be connected with the channel structure and pierce the substrate 5 via mould pressing process, etch work The window structure that skill or simple drilling technology are formed, is bonded to each other the substrate 5 being installed together and is built into jointly with the cover plate 6 Micro-fluidic chip containing pipeline configuration and the liquid pool structure being attached thereto, the locations of structures of the pipeline are located at the substrate 5 The interface zone being bonded to each other with the cover plate 6, its side of the window is blocked by the cover plate 6 and opposite side opens, the knot of the window Structure position is exactly the locations of structures of the liquid pool, and the liquid pool has two kinds, and two kinds of liquid pools are to be located at different structure position respectively Sample introduction end liquid pool and terminal liquid pool, there is the one or more sample introduction position of sample introduction end 4 of the micro-fluidic chip Liquid pool is held, the sample introduction end 4 refers to the injection end position of detected solution during the micro-fluidic chip actual sample introduction, micro-fluidic at this Then there is a terminal liquid pool position of terminal 3 of chip, when the terminal 3 refers to that the actual sample introduction of the micro-fluidic chip is tested The terminal location that liquid flows in its chip, the terminal 3 are located remotely from each other with the sample introduction end 4, and one end of the pipeline is with being located at sample introduction The sample introduction end liquid pool UNICOM at end 4, the other end of the pipeline and the terminal of the terminal 3 positioned at the micro-fluidic chip Liquid pool UNICOM, and, sequentially or backward be respectively installed in working electrode in the pipeline on diverse location and to electrode And reference electrode, the order refer to its locations of structures of the reference electrode closer to the position of terminal 3, the backward The reference electrode locations of structures is referred to closer to the position of sample introduction end 4, the working electrode by conductive electrode and The gold size sensitive membrane for having embedded tumor markers antibody being attached on the conductive electrode is formed, and the construction of the pipeline is presented simultaneously Connection construction, the pipeline in parallel construction are made up of six lateral parallel connections, and the pipeline in parallel construction is by eight Lateral is in parallel to be formed, and its appearance profile of the pipeline of the presentation parallel construction is similar to the profile of parallel circuit, institute The quantity for stating working electrode is eight, and the installation position of eight working electrodes is located in eight laterals respectively, with And the tumor markers antibody in eight working electrodes its top layer gold size sensitivity membrane structures is to tumor markers antigen respectively Can specific binding eight kinds of tumor markers antibody materials, eight kinds of antibody materials be respectively tumor markers antibody CA199, CA153, CA125, CA242, AFP, CEA, EB and β-HCG, the antigen are the antigen of broad sense, and the antibody is the anti-of broad sense Body, its material of the working electrode are argent material, gold material, carbon material or thermally decompose conducting polymer material, institute State working electrode its pattern and column, sheet or thread is presented, its material of the substrate 5 is dimethyl silicone polymer material, the substrate 5 Its surface is the surface of primary form, the surface of the primary form its be intended to refer to not by any surface chemical modification or The surface of the primary form of the material of any surface chemical modification, the structure of the device also include elastic clip 1, the elastic clip 1 Two opposite clamping limbs 2,7 snap-in locations in the position of the neighbouring terminal 3 of the micro-fluidic chip, at least in One clamping limb for example attaches fixation and is equiped with miniature ultrasonic transducer units 8 on clamping limb 7, and, higher-order of oscillation telecommunication Number transmission cable 9, one end of the higher-order of oscillation electric signal transmission cable 9 links together with the miniature ultrasonic transducer units 8；Should Elastic clip 1 provides a function of facilitating the device to disassemble；Its major function of the miniature ultrasonic transducer units 8 is micro-fluidic When the actual sample introduction of chip is tested, the sample introduction end 4 and the terminal 3 and the installation position of miniature ultrasonic transducer units 8 are utilized The distance between difference on difference and its ultrasonic intensity experienced, its interface of sample introduction end 4 described in induced synthesis Difference between power and the terminal 3 its interfacial tension, interfacial tension difference between the micro-fluidic chip both ends 3,4 can be Pressure gap is formed between the both ends 3,4 of the micro-fluidic chip, the pressure gap can drive sample solution to be flowed to the terminal 3 It is dynamic；It is soft and have the substrate 5 of the dimethyl silicone polymer material of elasticity its function and also include with it to the strong absorption of ultrasonic wave Property, ultrasonic wave is absorbed strongly, and thereby limited between the micro-fluidic chip terminal 3 arrives the sample introduction end 4 Short distance within realize the rapid decrement of ultrasonic intensity；And many titanium dioxide granules, many titanium dioxide It is particles filled in the pipeline, its tube chamber of the pipeline is filled up by many titanium dioxide granules, the titanium dioxide For its particle size range of grain between 10 microns and 200 microns, the titanium dioxide granule is the titanium dioxide by doping vario-property Grain, the titanium dioxide granule are its particles of inorganic material of shared percentage by weight more than 80% of titanium dioxide content, the dioxy It is photic super hydrophilic titanium dioxide granule to change titanium particle, and its function of the titanium dioxide granule includes it can be by receiving in advance Radiation of visible light forms the titanium dioxide granule surface with super hydrophilic property.

Arrow in legend indicate the micro-fluidic chip its in actual motion, by pressure at two ends difference drive, its try The flow direction of sample liquid stream.

The associate members such as the higher-order of oscillation electric signal generator and multiple tracks electrochemical workstation are depicted without in Fig. 1.

Itself is commercially available for involved elastic clip.It is available for the commercially available alternative spring clamp structure that this case structure uses And moulding and size etc., quality is various, and specific elastic clip pattern can be selected as needed.

Involved miniature ultrasonic transducer units 8 are commercially available；It can also be customized to ultrasonic transducer producer.

Involved higher-order of oscillation electric signal transmission cable 9 is commercially available；Can also be special to ultrasonic transducer producer or cable Industry producer customizes.

Involved higher-order of oscillation electric signal generator market has the product close to needs commercially available；It can also determine to relevant manufacturers System.

Each working electrode in this example structure and can be respectively via each special electricity to electrode and reference electrode Cable or say is being got lines crossed respectively with the corresponding cable interface of the multiple tracks electrochemical workstation as annex or saying interface connection of getting lines crossed.

The multiple tracks electrochemical workstation is commercially available；The multiple tracks electrochemical workstation can also be according to specific needs to phase Close specialized factory's customization.

In view of the pipeline of the presentation parallel construction its form foot that this case related text above expresses that it is described It is enough clear, the concrete form of the pipeline in this kind of micro-fluidic chip of this case is no longer specifically illustrating in this case embodiment.

Antibody described in this case refers to the antibody of broad sense；Antigen described in this case refers to the antigen of broad sense；Exempt from described in this case Epidemic disease compound refers to the immune complex of broad sense.

Claims (10)

1. the micro flow control chip device of a variety of classifiable tumor marks of women is detected simultaneously, it is characterised in that the structure of the device Including multichannel micro-fluidic chip, the structure of the micro-fluidic chip includes being bonded to each other the substrate and cover plate of installing together, institute It is plate object or tablet to state substrate and cover plate, and that face towards the cover plate of the substrate was contained via mould pressing process or quarter Etching technique formed channel structure, the substrate also containing be connected with the channel structure and pierce the substrate via stamper The window structure that skill, etching technics or simple drilling technology are formed, is bonded to each other the substrate being installed together and is total to the cover plate With the micro-fluidic chip containing pipeline configuration and the liquid pool structure being attached thereto has been built into, the locations of structures of the pipeline is located at The interface zone that the substrate is bonded to each other with the cover plate, its side of the window is blocked by the cover plate and opposite side opens, the window Locations of structures be exactly the liquid pool locations of structures, the liquid pool has two kinds, and two kinds of liquid pools are to be located at different structure respectively The sample introduction end liquid pool and terminal liquid pool of position, the sample introduction end position of the micro-fluidic chip have it is one or more it is described enter Sample end liquid pool, the sample introduction end refers to the injection end position of detected solution during the micro-fluidic chip actual sample introduction, in the miniflow The terminal location of control chip then has a terminal liquid pool, when the terminal refers to that the actual sample introduction of the micro-fluidic chip is tested The terminal location that liquid flows in its chip, the terminal are located remotely from each other with the sample introduction end, and one end of the pipeline is with being located at sample introduction end The sample introduction end liquid pool UNICOM, the other end of the pipeline with positioned at the micro-fluidic chip the terminal the terminal liquid pool UNICOM, and, sequentially or backward be respectively installed in working electrode in the pipeline on diverse location and to electrode and Reference electrode, the order refer to its locations of structures of the reference electrode closer to the terminal location, what the backward referred to Be the reference electrode locations of structures closer to the sample introduction end position, the working electrode is by conductive electrode and is attached to The gold size sensitive membrane for having embedded tumor markers antibody on the conductive electrode is formed, and structure in parallel is presented in the construction of the pipeline Make, the pipeline in parallel construction is made up of eight lateral parallel connections, and the pipeline that parallel construction is presented is outside it Shape profile is similar to the profile of parallel circuit, and the quantity of the working electrode is eight, the installation position of eight working electrodes Respectively in eight laterals, and, the tumour mark in its top layer gold size sensitivity membrane structure of eight working electrodes Will thing antibody is the eight kinds of tumor markers antibody materials that can be specifically bound to tumor markers antigen respectively, eight kinds of antibody Material is tumor markers antibody CA199, CA153, CA125, CA242, AFP, CEA, EB and β-HCG respectively, the antigen It is the antigen of broad sense, the antibody is the antibody of broad sense, and its material of the working electrode is argent material, gold material, carbon Column, sheet or thread, its material of the substrate is presented in material matter or thermal decomposition conducting polymer material, its pattern of the working electrode Matter is dimethyl silicone polymer material, and its surface of the substrate is the surface of primary form, the surface of the primary form its be meant to Be the not primary form of the material by any surface chemical modification or any surface chemical modification surface, the device Structure also include elastic clip, two opposite clamping limb snap-in locations of the elastic clip are in the neighbouring described of the micro-fluidic chip The position of terminal, fixation is attached on a clamping limb at least in and is equiped with miniature ultrasonic transducer units, and, it is high Frequency vibration swings electric signal transmission cable, and one end and the miniature ultrasonic transducer units of the higher-order of oscillation electric signal transmission cable are connected to Together；The elastic clip provides a function of facilitating the device to disassemble；Its major function of the miniature ultrasonic transducer units be When the actual sample introduction of micro-fluidic chip is tested, the sample introduction end and the terminal is utilized to install position with the miniature ultrasonic transducer units The distance between put the difference on difference and its ultrasonic intensity experienced, its interface of sample introduction end described in induced synthesis Difference between power and the terminal its interfacial tension, the interfacial tension difference between the micro-fluidic chip both ends can be micro- at this Pressure gap is formed between the both ends of fluidic chip, the pressure gap can drive sample solution to the end flow；It is soft It is right and the substrate of the dimethyl silicone polymer material its function of having elasticity also includes with its property to the strong absorption of ultrasonic wave Ultrasonic wave is absorbed strongly, and thereby within micro-fluidic chip terminal to the limited short distance between the sample introduction end Realize the rapid decrement of ultrasonic intensity；And many titanium dioxide granules, many titanium dioxide granules are filled in institute State in pipeline, its tube chamber of the pipeline is filled up by many titanium dioxide granules, its particle size range of the titanium dioxide granule Between 10 microns and 200 microns, the titanium dioxide granule is the titanium dioxide granule by doping vario-property, the titanium dioxide Particle is its particles of inorganic material of shared percentage by weight more than 80% of titanium dioxide content, and the titanium dioxide granule is photic Super hydrophilic titanium dioxide granule, its function of the titanium dioxide granule can be by receiving advance radiation of visible light come shape including it Into the titanium dioxide granule surface with super hydrophilic property.

2. micro flow control chip device that is according to claim 1 while detecting a variety of classifiable tumor marks of women, it is special Sign is that it is capillary channel that the pipeline, which includes the lateral,.

3. micro flow control chip device that is according to claim 1 while detecting a variety of classifiable tumor marks of women, it is special Sign is that its composition adulterated of the titanium dioxide granule is tungsten oxide (WO₃), tin oxide (SnO₂), vanadic anhydride (V₂O₅), iron oxide (Fe₂O₃) zinc oxide (ZnO), the silver (Ag) of reduction-state or two or more above-mentioned doping components combination Thing.

4. micro flow control chip device that is according to claim 1 while detecting a variety of classifiable tumor marks of women, it is special Sign is, the width or diameter of the working electrode between 0.1 micron to 2000 microns, and, the working electrode Length is between 1 micron to 15000 microns.

5. micro flow control chip device that is according to claim 1 while detecting a variety of classifiable tumor marks of women, it is special Sign is that the thickness of the gold size sensitive membrane is between 10 nanometers and 200 nanometers.

6. micro flow control chip device that is according to claim 1 while detecting a variety of classifiable tumor marks of women, it is special Sign is, the cover plate its material in structure is dimethyl silicone polymer material.

7. micro flow control chip device that is according to claim 1 while detecting a variety of classifiable tumor marks of women, it is special Sign is that the distance between the terminal and the sample introduction end are between 3 centimetres and 10 centimetres, its thickness of the cover plate and substrate Degree is between 1.0 millimeters and 5.0 millimeters.

8. micro flow control chip device that is according to claim 1 while detecting a variety of classifiable tumor marks of women, it is special Sign is that between 100 microns and 200 microns, its inside diameter ranges of the pipeline are situated between its particle size range of the titanium dioxide granule Between 500 microns and 1000 microns.

9. micro flow control chip device that is according to claim 1 while detecting a variety of classifiable tumor marks of women, it is special Sign is that the structure of the micro fluidic device also includes higher-order of oscillation electric signal generator, the higher-order of oscillation electric signal transmission electricity Its other end of cable is connected with the higher-order of oscillation electric signal generator.

10. micro flow control chip device that is according to claim 1 while detecting a variety of classifiable tumor marks of women, it is special Sign is that for its specified ultrasonic wave transmission power of the miniature ultrasonic transducer units between 5 milliwatts and 5000 milliwatts, this is miniature super The frequency of its ultrasonic wave operationally launched of acoustic wave transducer is between 100KHz and 12MHz.