CN105863985A - Device for driving liquid to move through magnetic response compound interface, and preparation method and application thereof - Google Patents
Device for driving liquid to move through magnetic response compound interface, and preparation method and application thereof Download PDFInfo
- Publication number
- CN105863985A CN105863985A CN201610252489.0A CN201610252489A CN105863985A CN 105863985 A CN105863985 A CN 105863985A CN 201610252489 A CN201610252489 A CN 201610252489A CN 105863985 A CN105863985 A CN 105863985A
- Authority
- CN
- China
- Prior art keywords
- magnetic
- liquid
- compound interface
- interface
- response compound
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B19/00—Machines or pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B1/00 - F04B17/00
- F04B19/006—Micropumps
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/44—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of magnetic liquids, e.g. ferrofluids
- H01F1/445—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of magnetic liquids, e.g. ferrofluids the magnetic component being a compound, e.g. Fe3O4
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Micromachines (AREA)
Abstract
The invention discloses a device for driving a liquid to move through a magnetic response compound interface. The device for driving the liquid to move through the magnetic response compound interface comprises the magnetic response compound interface, a corresponding magnetic field and the liquid, wherein the magnetic response compound interface is composed of a micro/nano array structure film and a magnetic fluid; the liquid is mutually insoluble with the magnetic fluid; the micro/nano array structure film is of an array structure ranging from a micron scale to a micron scale, an array structure ranging from a micron scale to a nano scale, or an array structure ranging from a nano scale to a nano scale, and is one of a rodlike structure, a tubular structure, a porous structure and a granular structure; the micro/nano array structure film is made from one of zinc oxide, titanium oxide, foamed nickel, foamed copper, porous alumina and silicon or silicon dioxide particles; and the magnetic fluid is a water-based magnetic fluid or an oil-based magnetic fluid. The device for driving the liquid to move through the magnetic response compound interface, which is disclosed by the invention, has the advantages of being easy to construct, fast in response speed, continuous in drive, convenient to control, and capable of controlling a movement speed and a movement direction by an external magnetic field; and liquid drops can be cooperatively driven through the magnetic field and the compound interface to directionally move.
Description
Technical field
The present invention relates to External field response compound interface and drive liquid motion technical field, particularly to field drives liquid motion device and preparation method and application.
Background technology
Gradient surface wellability, the surface tension gradient produced due to it and laplace pressure, intelligent surface liquid transport plays very important effect.But, at this wellability gradient surface, due to the chemical composition and structure that it is constant, can not be continuously adjusted in the distance range needed and (refer to list of references [1]: S.Daniel, M.K.Chaudhury, J.C.Chen, Science 2001,291,633；List of references [2]: S.W.Lee, P.E.Laibinis, J.Am.Chem.Soc.2000,122,5395；List of references [3]: M.K.Chaudhury, G.M.Whitesides, Science 1992,256,1539.；List of references [4]: F.Lugli, G.Fioravanti, D.Pattini, L.Pasquali, M.Montecchi, D.Gentili, M.Murgia, Z.Hemmatian, F.Zerbetto, Adv.Func.Mater.2013,23,5543；List of references [5]: J.Ju, K.Xiao, X.Yao, H.Bai, L.Jiang, Adv.Mater.2013,25,5937).Therefore, the motion of surface liquid is affected the biggest by viscous force.Intelligent response material can obtain switch wellability under the outfield such as stimulation such as optical, electrical, hot, gravitation and mechanical-stretching and (refer to list of references [6]: K.Ichimura, S.K.Oh, M.Nakagawa, Science 2000,288,1624；List of references [7]: X.Yao, J.Ju, S.Yang, J.J.Wang, L.Jiang, Adv.Mater.2014,26,1895；List of references [8]: M.J.Liu, F.-Q.Nie, Z.X.Wei, Y.L.Song, L.Jiang, Langmuir 2010,26,3993；List of references [9]: X.Yao, Y.Hu, A.Grinthal, T.-S.Wong, L.Mahadevan, J.Aizenberg, Nat.Mater.2013,12,529；List of references [10]: Y.M.Zheng, X.F.Gao, L.Jiang, Soft Matter 2007,3,178；List of references [11]: M.W.J.Prins, W.J.J.Welters, J.W.Weekamp, Science 2001,291,277.), but owing to response speed is slow, liquid motion direction and speed are uncontrollable, and the application in liquid driven is limited by very large.The compound interface how obtaining a kind of quick response, movement velocity and direction the most controlled has the biggest challenge.
Summary of the invention
It is an object of the invention to provide a kind of magnetic response compound interface and drive liquid motion device.
It is a further object of the present invention to provide magnetic response compound interface and drive the application of liquid motion device.
Another object of the present invention is a kind of preparation method providing magnetic response compound interface.
For achieving the above object, the present invention is by the following technical solutions:
A kind of magnetic response compound interface drives liquid motion device, including magnetic response compound interface, corresponding magnetic field, liquid；
Wherein, described magnetic response compound interface is made up of micro-nano array structure film and magnetic fluid；Described liquid is immiscible with described magnetic fluid；
Described micro-nano array structure film be micron to micro-meter scale, micron to nanoscale, the array structure of nanometer to nanoscale, for the one in club shaped structure, tubular structure, cavernous structure or nutty structure；The material of described micro-nano array structure film one in zinc oxide, titanium oxide, nickel foam, foam copper, Woelm Alumina, silicon or silica dioxide granule；
Described magnetic fluid is water-based magnetic fluid or oil-based magnetic fluids.
Magnetic response compound interface as above drives liquid motion device, it is preferable that the kind of the oil of described oil-based magnetic fluids is the one in silicone oil, kerosene, diesel oil, silicon fluoride, PFPE, liquid paraffin or mineral oil.
Magnetic response compound interface as above drives liquid motion device, it is preferable that the magnetic field intensity in described magnetic field is the magnetic field of 0～1T.
Magnetic response compound interface as above drives liquid motion device, it is preferable that described the action of a magnetic field is in the lower section of magnetic response compound interface.
Magnetic response compound interface as above drives liquid motion device, it is preferable that in described club shaped structure, a diameter of 50nm of rod～200 μm, a length of 1 μm of rod～500 μm；In described tubular structure, the caliber of pipe is 200nm～200 μm, a length of 1 μm of pipe～500 μm；The aperture of described cavernous structure mesopore is 200nm～500 μm, and the degree of depth in hole is 1 μm～3mm；A diameter of 1 μm of granule～200 μm in described nutty structure, granule thickness is 1 μm～500 μm.
Magnetic response compound interface as above drives the application of liquid motion device: have magnetic response compound interface under the action of a magnetic field that magnetic field intensity is 0～1T, described magnetic fluid under the influence of a magnetic field in described micro-nano array structure film motion assemble, form the taper bulge-structure array that 1～500 μm are high and 1～500 μm are wide, and the intensity in described magnetic field is the biggest, this taper array of protrusions structure is the biggest；After described magnetic field removes, magnetic fluid structure disappears, and magnetic fluid returns in nano-array.When magnetic response compound interface is applied 0～1T gradient magnetic；The region taper bulge-structure that magnetic field intensity is big is big；And it is little at the region taper bulge-structure that magnetic field intensity is little.So under the effect of gradient magnetic, interface bulge-structure is from the taper size gradient distribution that 1～500 μm are high and 1～500 μm are wide.
Above-mentioned there is magnetic response compound interface dropping immiscible with magnetic liquid drop time, the described drop contact angle at this interface increases along with the increase of interfacial structure, i.e. increases along with the increase of magnetic field intensity.Therefore, under the magnetic field of Gradient distribution, liquid-drop contact angle distribution gradient immiscible on interface, i.e. different at same drop two ends contact angle, the end thereof contacts angle that interfacial structure is big is relatively big, and the end thereof contacts angle that interfacial structure is little is less, thus forms wellability difference at same drop two ends, producing internal pressure, this power makes drop have from the bigger one end of contact angle to the movement tendency of the less one end of contact angle.When magnetic field is moved, interface drop can quickly move along the direction of motion in magnetic field, and the movement velocity of drop is consistent with the movement velocity in magnetic field, and when magnetic direction changes, on interface, the motion of drop changes as well as the direction in magnetic field；
The scope that described liquid-drop contact angle changes is 1 degree～110 degree；
The response time that described interface drop can quickly move along the direction of motion in magnetic field is less than 0.1s；
Described interface drop is 0～1m/s with Movement in Magnetic Field speed.
Magnetic response compound interface as above drives the application of liquid motion device: described magnetic response compound interface driving liquid motion device is applied to the energy, biotechnology, microsensor, microfluidic control technology, under the described the action of a magnetic field with gradient, the directed movement on described magnetic response compound interface of described drop.
Application as above, it is preferable that the described liquid transport that described magnetic response compound interface is applied in surface or microchannel as pump.
The drop of this device surface can move along magnetic field gradient directions, this directed movement is mainly by the unbalanced surface tension driving in drop two ends, the liquid transport of the especially non-contact control of the micro fluid dynamcis in surface or microchannel can be applied to as pump, in fields such as the energy, biotechnology, microsensor, microfluidic control technology, there is significant application value；Wherein, described microchannel diameter is 10 μm～3mm.
The magnetic response compound interface of the present invention drives liquid motion device to be prepared by following methods:
It is added drop-wise to described magnetic fluid in described micro-nano array structure film prepare magnetic response compound interface；
The described liquid immiscible with selected magnetic fluid is added drop-wise on magnetic response compound interface,
Use the action of a magnetic field of lower section of magnetic response compound interface in compound interface, can realize the control of liquid drop movement described in magnetic response compound interface.
Preparation method described above, it is preferable that when described magnetic fluid is water-based magnetic fluid, described water-based magnetic fluid is water or the solution with water as solvent, and described liquid is silicone oil, kerosene, diesel oil, silicon fluoride, PFPE, liquid paraffin or mineral oil；
When described magnetic fluid is oil-based magnetic fluids, the oil of described oil-based magnetic fluids is silicone oil, kerosene, diesel oil, silicon fluoride, PFPE, liquid paraffin or mineral oil, and described liquid is water or the solution with water as solvent.
Further, in described club shaped structure, a diameter of 50nm of rod～200 μm, a length of 1 μm of rod～500 μm；In described tubular structure, the caliber of pipe is 200nm～200 μm, a length of 1 μm of pipe～500 μm；The aperture of described cavernous structure mesopore is 200nm～500 μm, and the degree of depth in hole is 1 μm～3mm；A diameter of 1 μm of granule～200 μm in described nutty structure, granule thickness is 1 μm～500 μm.
The advantage that the magnetic response compound interface of the present invention drives liquid motion device: have and be prone to construct, fast response time, persistently drive, convenient control, the advantage that movement velocity and the direction of motion can be controlled by external magnetic field, can pass through magnetic field and compound interface coordinated drive drop directed movement.
Accompanying drawing explanation
Fig. 1 is magnetic response compound interface interface microstructure change schematic diagram before and after applying magnetic field.
Fig. 2 is magnetic response compound interface drop infiltrating change schematic diagram in interface before and after applying magnetic field.
Fig. 3 is that magnetic response compound interface drives drop directed movement mechanism schematic diagram under Actions of Gradient Magnetic Field.
Fig. 4 is that magnetic response compound interface drives microchannel drop directed movement mechanism schematic diagram under Actions of Gradient Magnetic Field.
Wherein: 1. magnetic response compound interface；2. externally-applied magnetic field；3. the liquid immiscible with magnetic fluid；11. micro-nano array structure films；12. magnetic fluids
Detailed description of the invention
Below in conjunction with the accompanying drawings and specific embodiment, the present invention is further illustrated.
Embodiment 1
Magnetic response compound interface drives liquid motion device to include magnetic response compound interface, magnetic field and the liquid immiscible with magnetic fluid.As shown in Figure 1a, it is added drop-wise to magnetic fluid 12 micro-nano array structure film 11 prepares magnetic response compound interface 1.Described micro-nano array structure film be micron to micro-meter scale, micron to nanoscale, the array structure of nanometer to nanoscale, for the one in club shaped structure, tubular structure, cavernous structure or nutty structure；The material of micro-nano array structure film can be selected for zinc oxide, titanium oxide, nickel foam, foam copper, Woelm Alumina, silicon or earth silicon material；The optional water-based magnetic fluid of magnetic fluid or oil-based magnetic fluids.
Further, in described club shaped structure, the diameter of rod is between 50nm to 200 μm, and the length of rod is between 1 μm to 500 μm；In described tubular structure, the caliber of pipe is between 200nm to 200 μm, and the length of pipe is between 1 μm to 500 μm；The aperture of described cavernous structure mesopore is between 200nm to 500 μm, and the degree of depth in hole is between 1 μm to 3mm；In described nutty structure, a diameter of 1 μm of granule is between 200 μm, and granule thickness is that between 1 μm to 500 μm, above-mentioned numerical range is all including the numerical value at two ends；
The described liquid immiscible with selected magnetic fluid, i.e. when selecting oil-based magnetic fluids, liquid is selected from water and the solution with water as solvent；When selecting water-based magnetic fluid, liquid is selected from oil, such as liquid immiscible with water such as silicone oil, kerosene, diesel oil, silicon fluoride, PFPE, liquid paraffin, mineral oil.
Magnetic response compound interface 1 applies magnetic field 2, it is possible to achieve the interfacial structure under the action of a magnetic field assembles, as shown in Figure 1 b；The liquid 3 immiscible with selected magnetic fluid 12 is added drop-wise on magnetic response compound interface 1, as shown in Figure 2 c；The magnetic field 2 using the lower section of magnetic response compound interface acts on magnetic response compound interface 1, as shown in Figure 2 d, control infiltrating to compound interface drop 3 can be realized, i.e. drop increases along with the increase of interfacial structure at the contact angle at this interface, say, that can increase along with the increase of magnetic field intensity.
There is magnetic response compound interface under the action of a magnetic field that magnetic field intensity is 0～1T, magnetic fluid can assemble in the motion in nano-array that acts in magnetic field, forming the taper bulge-structure array that 1～500 μm are high and 1～500 μm are wide, and magnetic field intensity is the biggest, array of protrusions structure is the biggest.As shown in Figure 2 d, after magnetic field removes, magnetic fluid structure disappears, and magnetic fluid returns in nano-array.When magnetic response compound interface is applied 0～1T gradient magnetic, the region bulge-structure that magnetic field intensity is big is big.And it is little at the region bulge-structure that magnetic field intensity is little.So under the effect of gradient magnetic, interface bulge-structure is from the taper size gradient distribution that 1～500 μm are high and 1～500 μm are wide.
As it is shown on figure 3, above-mentioned there is magnetic response compound interface dropping immiscible with magnetic liquid drop time, the described drop contact angle at this interface increases along with the increase of interfacial structure, i.e. increases along with the increase of magnetic field intensity.Under the distribution in uniform magnetic field, the contact angle θ at drop two ends immiscible on interface0Size is identical, and under the magnetic field of Gradient distribution, liquid-drop contact angle distribution gradient immiscible on interface, the i.e. contact angle at same drop two ends are different, the end thereof contacts angle θ that interfacial structure is big1Relatively big, the end thereof contacts angle θ that interfacial structure is little2Less, thus form wellability difference at same drop two ends, produce internal pressure, this power makes drop have from the bigger one end of contact angle to the movement tendency of the less one end of contact angle.When magnetic field is moved, interface drop can quickly move along the direction of motion in magnetic field, and the movement velocity of drop is consistent with the movement velocity in magnetic field, and when magnetic direction changes, on interface, the motion of drop changes as well as the direction in magnetic field.
Wherein, the scope that above-mentioned liquid-drop contact angle changes is 1 degree～110 degree；
The response time that above-mentioned interface drop can quickly move along the direction of motion in magnetic field is less than 0.1s；
Above-mentioned interface drop is 0～1m/s with the speed of Movement in Magnetic Field.
The drop of this device surface can move along magnetic field gradient directions, this directed movement is mainly by the unbalanced surface tension driving in drop two ends, the liquid transport of the especially non-contact control of the micro fluid dynamcis in surface or microchannel can be applied to as pump, in fields such as the energy, biotechnology, microsensor, microfluidic control technology, there is significant application value.Described microchannel diameter is 10 μm～3mm.
As shown in Figure 4, when constructing this magnetic response compound interface in microchannel, this magnetic response compound interface can have significant application value as pump micro fluid dynamcis in microchannel and liquid transport in fields such as the energy, biotechnology, microsensor, microfluidic control technology under the influence of a magnetic field.In Fig. 4, B is the enlarged drawing at A.
Specifically, described micro-nano array structure film is nanometic zinc oxide rod array structure, nanorod diameter is 50nm, a length of 1 μm of rod, and magnetic fluid uses Polydimethylsiloxane--based Ferrofluid, on interface, the immiscible liquid of dropping is water, when not applying magnetic field, interface drop presents the state of sprawling, and contact angle is 5 degree, when applying the magnetic field of 10mT, interface bulge-structure is about the taper size gradient distribution that 10 μm are high and 30 μm are wide.Liquid-drop contact angle becomes 70 degree, and when applying the gradient magnetic of 0-100mT, water droplet speed of doing exercises along with the motion in magnetic field is 1m/s.For the microchannel of a diameter of 3 μm, the liquid transport that this magnetic response compound interface can be applied in microchannel as pump.
Embodiment 2
Other steps are with embodiment 1.
Described micro-nano array structure film is silicon nanorod array structure, a diameter of 200 μm of rod, a length of 500 μm of rod.
Described magnetic fluid is selected from keryl magnetic fluid, and on interface, the immiscible liquid of dropping is water, when not applying magnetic field, interface drop presents the state of sprawling, contact angle is 5 degree, and when applying the magnetic field of 200mT, interface bulge-structure is about the taper size gradient distribution that 200 μm are high and 200 μm are wide.Liquid-drop contact angle becomes 110 degree, and when applying the gradient magnetic of 0-500mT, water droplet speed of doing exercises along with the motion in magnetic field is 1m/s.For the microchannel of a diameter of 3mm, the liquid transport that this magnetic response compound interface can be applied in microchannel as pump.
Embodiment 3
Other steps are with embodiment 1.
Described micro-nano array structure film is titanium oxide nanotube array structure, and the caliber of nanotube is 200nm, and length of tube is 1 μm.
Described magnetic fluid is selected from diesel oil based magnetofluid, and on interface, the immiscible liquid of dropping is water, when not applying magnetic field, interface drop presents the state of sprawling, contact angle is 5 degree, and when applying the magnetic field of 10mT, interface bulge-structure is about the taper size gradient distribution that 10 μm are high and 30 μm are wide.Liquid-drop contact angle becomes 70 degree, and when applying the gradient magnetic of 0-100mT, water droplet speed of doing exercises along with the motion in magnetic field is 1m/s.For the microchannel of a diameter of 3mm, the liquid transport that this magnetic response compound interface can be applied in microchannel as pump.
Embodiment 4
Other steps are with embodiment 1.
Described micro-nano array structure film is titanium oxide nanotube array structure, and the caliber of nanotube is 200 μm, a length of 500 μm of pipe.
Described magnetic fluid is selected from silicon fluoride based magnetofluid, and on interface, the immiscible liquid of dropping is water, when not applying magnetic field, interface drop presents the state of sprawling, contact angle is 5 degree, and when applying the magnetic field of 200mT, interface bulge-structure is about the taper size gradient distribution that 200 μm are high and 200 μm are wide.Liquid-drop contact angle becomes 110 degree, and when applying the gradient magnetic of 0-500mT, water droplet speed of doing exercises along with the motion in magnetic field is 1m/s.For the microchannel of a diameter of 3mm, the liquid transport that this magnetic response compound interface can be applied in microchannel as pump.
Embodiment 5
Other steps are with embodiment 1.
Described micro-nano array structure film is nickel foam, and the aperture of micron openings is 500 μm, and the degree of depth in hole is 3mm.
Described magnetic fluid is selected from PFPE based magnetofluid, and on interface, the immiscible liquid of dropping is water, when not applying magnetic field, interface drop presents the state of sprawling, contact angle is 5 degree, and when applying the magnetic field of 1T, interface bulge-structure is about the taper size gradient distribution that 500 μm are high and 500 μm are wide.Liquid-drop contact angle becomes 110 degree, and when applying the gradient magnetic of 0-1T, water droplet speed of doing exercises along with the motion in magnetic field is 1m/s.For the microchannel of a diameter of 3mm, the liquid transport that this magnetic response compound interface can be applied in microchannel as pump.
Embodiment 6
Other steps are with embodiment 1.
Described micro-nano array structure film is foam copper, and micron pore size is 500 μm, and the degree of depth in hole is 3mm.
Described magnetic fluid is selected from mineral oil based magnetofluid, and on interface, the immiscible liquid of dropping is water, when not applying magnetic field, interface drop presents the state of sprawling, contact angle is 5 degree, and when applying the magnetic field of 1T, interface bulge-structure is about the taper size gradient distribution that 500 μm are high and 500 μm are wide.Liquid-drop contact angle becomes 110 degree, and when applying the gradient magnetic of 0-1T, water droplet speed of doing exercises along with the motion in magnetic field is 1m/s.For the microchannel of a diameter of 3mm, the liquid transport that this magnetic response compound interface can be applied in microchannel as pump.
Embodiment 7
Other steps are with embodiment 1.
Described micro-nano array structure film is Woelm Alumina, and aperture is 200nm, and the degree of depth in hole is 1 μm.
Described magnetic fluid is selected from liquid paraffin based magnetofluid, and on interface, the immiscible liquid of dropping is water, when not applying magnetic field, interface drop presents the state of sprawling, contact angle is 5 degree, and when applying the magnetic field of 5mT, interface bulge-structure is about the taper size gradient distribution that 2 μm are high and 3 μm are wide.Liquid-drop contact angle becomes 20 degree, and when applying the gradient magnetic of 0-5mT, water droplet speed of doing exercises along with the motion in magnetic field is 1m/s.For the microchannel of a diameter of 10 μm, the liquid transport that this magnetic response compound interface can be applied in microchannel as pump.
Embodiment 8
Other steps are with embodiment 1.
Described micro-nano array structure film is silica dioxide granule, and granule footpath is 1 μm, and the thickness of membrana granulosa is 1 μm.
Described magnetic fluid is selected from liquid paraffin based magnetofluid, and on interface, the immiscible liquid of dropping is water, when not applying magnetic field, interface drop presents the state of sprawling, contact angle is 5 degree, and when applying the magnetic field of 5mT, interface bulge-structure is about the taper size gradient distribution that 2 μm are high and 3 μm are wide.Liquid-drop contact angle becomes 20 degree, and when applying the gradient magnetic of 0-5mT, water droplet speed of doing exercises along with the motion in magnetic field is 1m/s.For the microchannel of a diameter of 10 μm, the liquid transport that this magnetic response compound interface can be applied in microchannel as pump.
Embodiment 9
Other steps are with embodiment 1.
Described micro-nano array structure film is silica dioxide granule, and granule footpath is 200 μm, and the thickness of membrana granulosa is 500 μm.
Described magnetic fluid is selected from liquid paraffin based magnetofluid, on interface, the immiscible liquid of dropping is water, when not applying magnetic field, interface drop presents the state of sprawling, contact angle is 5 degree, when applying the magnetic field of 200mT, interface bulge-structure is about the taper size gradient distribution that 200 μm are high and 200 μm are wide.Liquid-drop contact angle becomes 100 degree, and when applying the gradient magnetic of 0-300mT, water droplet speed of doing exercises along with the motion in magnetic field is 1m/s.For the microchannel of a diameter of 10 μm, the liquid transport that this magnetic response compound interface can be applied in microchannel as pump.
Embodiment 10
Other steps are with embodiment 1.
Described micro-nano array structure film is Woelm Alumina, and aperture is 200nm, and the degree of depth in hole is 1 μm.
Described magnetic fluid is selected from water-based magnetic fluid, and on interface, the immiscible liquid of dropping is silicone oil, when not applying magnetic field, interface drop presents the state of sprawling, contact angle is 1 degree, and when applying the magnetic field of 5mT, interface bulge-structure is about the taper size gradient distribution that 2 μm are high and 3 μm are wide.Liquid-drop contact angle becomes 10 degree, and when applying the gradient magnetic of 0-5mT, it is 1m/s that silicone oil drips speed of doing exercises along with the motion in magnetic field.For the microchannel of a diameter of 10 μm, the liquid transport that this magnetic response compound interface can be applied in microchannel as pump.
Embodiment 11
Other steps are with embodiment 1.
Described micro-nano array structure film is Woelm Alumina, and aperture is 200nm, and the degree of depth in hole is 1 μm.
Described magnetic fluid is selected from water-based magnetic fluid, and on interface, the immiscible liquid of dropping is kerosene, when not applying magnetic field, interface drop presents the state of sprawling, contact angle is 1 degree, and when applying the magnetic field of 5mT, interface bulge-structure is about the taper size gradient distribution that 2 μm are high and 3 μm are wide.Liquid-drop contact angle becomes 10 degree, and when applying the gradient magnetic of 0-5mT, it is 1m/s that kerosene drips speed of doing exercises along with the motion in magnetic field.For the microchannel of a diameter of 10 μm, the liquid transport that this magnetic response compound interface can be applied in microchannel as pump.
Embodiment 12
Other steps are with embodiment 1.
Described micro-nano array structure film is titanium oxide nanotube array structure, and its nanotube caliber is 200nm, and length of tube is 1 μm.
Described magnetic fluid is selected from water-based magnetic fluid, and on interface, the immiscible liquid of dropping is diesel oil, when not applying magnetic field, interface drop presents the state of sprawling, contact angle is 1 degree, and when applying the magnetic field of 10mT, interface bulge-structure is about the taper size gradient distribution that 10 μm are high and 30 μm are wide.Liquid-drop contact angle becomes 20 degree, and when applying the gradient magnetic of 0-100mT, oil droplet speed of doing exercises along with the motion in magnetic field is 1m/s.For the microchannel of a diameter of 3mm, the liquid transport that this magnetic response compound interface can be applied in microchannel as pump.
Embodiment 13
Other steps are with embodiment 1.
Described micro-nano array structure film is titanium oxide nanotube array structure, and its nanotube caliber is 200 μm, and length of tube is 500 μm.
Described magnetic fluid is selected from water-based magnetic fluid, and on interface, the immiscible liquid of dropping is silicon fluoride, when not applying magnetic field, interface drop presents the state of sprawling, contact angle is 2 degree, and when applying the magnetic field of 200mT, interface bulge-structure is about the taper size gradient distribution that 200 μm are high and 200 μm are wide.Liquid-drop contact angle becomes 80 degree, and when applying the gradient magnetic of 0-500mT, it is 1m/s that silicon fluoride drips speed of doing exercises along with the motion in magnetic field.For the microchannel of a diameter of 3mm, the liquid transport that this magnetic response compound interface can be applied in microchannel as pump.
Embodiment 14
Described micro-nano array structure film is nanometic zinc oxide rod array structure, and its nanorod diameter is 50nm, a length of 1 μm of rod.
Described magnetic fluid is selected from water-based magnetic fluid, and on interface, the immiscible liquid of dropping is PFPE, when not applying magnetic field, interface drop presents the state of sprawling, contact angle is 2 degree, and when applying the magnetic field of 10mT, interface bulge-structure is about the taper size gradient distribution that 10 μm are high and 30 μm are wide.Liquid-drop contact angle becomes 20 degree, and when applying the gradient magnetic of 0-100mT, it is 1m/s that PFPE drips speed of doing exercises along with the motion in magnetic field.For the microchannel of a diameter of 3 μm, the liquid transport that this magnetic response compound interface can be applied in microchannel as pump.
Embodiment 15
Other steps are with embodiment 1.
Described micro-nano array structure film is Woelm Alumina, and its aperture is 200nm, and the degree of depth in hole is 1 μm.
Described magnetic fluid is selected from water-based magnetic fluid, and on interface, the immiscible liquid of dropping is liquid paraffin, when not applying magnetic field, interface drop presents the state of sprawling, contact angle is 1 degree, and when applying the magnetic field of 5mT, interface bulge-structure is about the taper size gradient distribution that 2 μm are high and 3 μm are wide.Liquid-drop contact angle becomes 10 degree, and when applying the gradient magnetic of 0-5mT, it is 1m/s that liquid paraffin drips speed of doing exercises along with the motion in magnetic field.For the microchannel of a diameter of 10 μm, the liquid transport that this magnetic response compound interface can be applied in microchannel as pump.
Embodiment 16
Other steps are with embodiment 1.
Described micro-nano array structure film is titanium oxide nanotube array structure, and its nanotube caliber is 200nm, and length of tube is 1 μm.
Described magnetic fluid is selected from water-based magnetic fluid, and on interface, the immiscible liquid of dropping is mineral oil, when not applying magnetic field, interface drop presents the state of sprawling, contact angle is 1 degree, and when applying the magnetic field of 10mT, interface bulge-structure is about the taper size gradient distribution that 10 μm are high and 30 μm are wide.Liquid-drop contact angle becomes 20 degree, and when applying the gradient magnetic of 0-100mT, mineral oil droplet speed of doing exercises along with the motion in magnetic field is 1m/s.For the microchannel of a diameter of 3mm, the liquid transport that this magnetic response compound interface can be applied in microchannel as pump.
The above, be only presently preferred embodiments of the present invention, is not the restriction that the present invention does other form, and any those skilled in the art are changed possibly also with the technology contents of the disclosure above or are modified as the Equivalent embodiments of equivalent variations.But every without departing from technical solution of the present invention content, any simple modification, equivalent variations and remodeling above example made according to the technical spirit of the present invention, still fall within the protection domain of technical solution of the present invention.
Claims (10)
1. a magnetic response compound interface drives liquid motion device, it is characterised in that include magnetic response
Compound interface, corresponding magnetic field, liquid；
Wherein, described magnetic response compound interface is made up of micro-nano array structure film and magnetic fluid；Described
Liquid is immiscible with described magnetic fluid；
Described micro-nano array structure film is that micron arrives to micro-meter scale, micron to nanoscale, nanometer
The array structure of nanoscale, in club shaped structure, tubular structure, cavernous structure or nutty structure
One；The material of described micro-nano array structure film is selected from zinc oxide, titanium oxide, nickel foam, bubble
One in foam copper, Woelm Alumina, silicon or silica dioxide granule；
Described magnetic fluid is water-based magnetic fluid or oil-based magnetic fluids.
2. magnetic response compound interface as claimed in claim 1 drives liquid motion device, its feature
Being, the kind of the oil of described oil-based magnetic fluids be selected from silicone oil, kerosene, diesel oil, silicon fluoride, entirely
One in perfluoroalkyl polyether, liquid paraffin or mineral oil.
3. magnetic response compound interface as claimed in claim 1 drives liquid motion device, its feature
Being, the magnetic field intensity in described magnetic field is the magnetic field of 0～1T, and described the action of a magnetic field is multiple in magnetic response
Close the lower section at interface.
4. magnetic response compound interface as claimed in claim 1 drives liquid motion device, its feature
Be, in described club shaped structure, rod a diameter of 50nm～200 μm, rod a length of 1 μm～
500μm；In described tubular structure, the caliber of pipe is 200nm～200 μm, a length of 1 μm of pipe～
500μm；The aperture of described cavernous structure mesopore is 200nm～500 μm, the degree of depth in hole be 1 μm～
3mm；A diameter of 1 μm of granule～200 μm in described nutty structure, granule thickness be 1 μm～
500μm。
5. the application of magnetic response compound interface driving liquid motion device as claimed in claim 1:
Described magnetic response compound interface driving liquid motion device is applied to the energy, biotechnology, miniature biography
Sensor, microfluidic control technology, under the described the action of a magnetic field with gradient, described drop is at described magnetic
Directed movement on response compound interface.
6. magnetic response compound interface drives the application of liquid motion device as claimed in claim 1: its
It is characterised by, the described liquid that described magnetic response compound interface is applied in surface or microchannel as pump
Transport.
7. magnetic response compound interface drives the application of liquid motion device as claimed in claim 6: its
Being characterised by, described microchannel diameter is 10 μm～3mm.
8. magnetic response compound interface drives the preparation method of liquid motion device as claimed in claim 1,
It is characterized in that, following methods prepare:
It is added drop-wise to described magnetic fluid in described micro-nano array structure film prepare magnetic response
Compound interface；
The liquid immiscible with described magnetic fluid is added drop-wise to the magnetic response compound interface of above-mentioned preparation
On,
Use the action of a magnetic field of lower section of magnetic response compound interface in compound interface, can realize magnetic is rung
Answer the control of liquid drop movement described in compound interface.
9. preparation method as claimed in claim 8, it is characterised in that when described magnetic fluid is water base
During magnetic fluid, described water-based magnetic fluid is water or the solution with water as solvent, and described liquid is silicone oil, coal
Oil, diesel oil, silicon fluoride, PFPE, liquid paraffin or mineral oil；
When described magnetic fluid is oil-based magnetic fluids, the oil of described oil-based magnetic fluids is silicone oil, kerosene, bavin
Oil, silicon fluoride, PFPE, liquid paraffin or mineral oil, described liquid is water or with water as solvent
Solution.
10. preparation method as claimed in claim 8, it is characterised in that in described club shaped structure,
A diameter of 50nm of rod～200 μm, a length of 1 μm of rod～500 μm；In described tubular structure
The caliber of pipe is 200nm～200 μm, a length of 1 μm of pipe～500 μm；Described cavernous structure
The aperture of mesopore is 200nm～500 μm, and the degree of depth in hole is 1 μm～3mm；Described nutty structure
A diameter of 1 μm of middle granule～200 μm, granule thickness is 1 μm～500 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610252489.0A CN105863985B (en) | 2016-04-21 | 2016-04-21 | Magnetic response compound interface driving liquid motion device and its preparation method and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610252489.0A CN105863985B (en) | 2016-04-21 | 2016-04-21 | Magnetic response compound interface driving liquid motion device and its preparation method and application |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105863985A true CN105863985A (en) | 2016-08-17 |
| CN105863985B CN105863985B (en) | 2018-02-27 |
Family
ID=56632807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610252489.0A Expired - Fee Related CN105863985B (en) | 2016-04-21 | 2016-04-21 | Magnetic response compound interface driving liquid motion device and its preparation method and application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105863985B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106602154A (en) * | 2016-12-09 | 2017-04-26 | 北京航空航天大学 | Method for driving bubble to move and method for reducing self-discharge of battery |
| CN109590039A (en) * | 2019-01-18 | 2019-04-09 | 京东方科技集团股份有限公司 | A kind of microfluidic components, micro-fluidic chip and preparation method thereof |
| CN110069168A (en) * | 2019-05-05 | 2019-07-30 | 京东方科技集团股份有限公司 | Micro fluidic device, operating method and control device for micro fluidic device |
| CN110523451A (en) * | 2019-09-30 | 2019-12-03 | 王殿宇 | Magnetic control microlayer model reactor preparation method based on super lubrication interface |
| CN110985333A (en) * | 2019-12-03 | 2020-04-10 | 广州大学 | Reversible micropump based on electrowetting phenomenon |
| CN111692209A (en) * | 2020-05-25 | 2020-09-22 | 南京航空航天大学 | Magnetic fluid controllable support micro platform based on extreme infiltration interface and manufacturing method |
| CN115121301A (en) * | 2022-01-20 | 2022-09-30 | 电子科技大学 | Device and method for realizing liquid drop transportation on long-range self-circulation magnetic fluid |
| CN115531979A (en) * | 2022-09-16 | 2022-12-30 | 广东以色列理工学院 | Intelligent net material capable of adjusting liquid permeability in real time and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101012051A (en) * | 2006-12-21 | 2007-08-08 | 清华大学 | Method of driving microchannel fluid utilizing magnetic droplet |
| EP2105202A1 (en) * | 2008-03-28 | 2009-09-30 | Stichting Dutch Polymer Institute | Apparatus and method for a microfluidic mixer and pump |
| US20100003143A1 (en) * | 2006-07-17 | 2010-01-07 | Koninklijke Philips Electronics N.V. | Micro-fluidic system |
| CN105363377A (en) * | 2015-12-14 | 2016-03-02 | 沈阳理工大学 | Microfluid mixing method and mixing device |
-
2016
- 2016-04-21 CN CN201610252489.0A patent/CN105863985B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100003143A1 (en) * | 2006-07-17 | 2010-01-07 | Koninklijke Philips Electronics N.V. | Micro-fluidic system |
| CN101012051A (en) * | 2006-12-21 | 2007-08-08 | 清华大学 | Method of driving microchannel fluid utilizing magnetic droplet |
| EP2105202A1 (en) * | 2008-03-28 | 2009-09-30 | Stichting Dutch Polymer Institute | Apparatus and method for a microfluidic mixer and pump |
| CN105363377A (en) * | 2015-12-14 | 2016-03-02 | 沈阳理工大学 | Microfluid mixing method and mixing device |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106602154A (en) * | 2016-12-09 | 2017-04-26 | 北京航空航天大学 | Method for driving bubble to move and method for reducing self-discharge of battery |
| CN106602154B (en) * | 2016-12-09 | 2019-03-22 | 北京航空航天大学 | A kind of method driving bubble motion and the method for reducing self-discharge of battery |
| CN109590039A (en) * | 2019-01-18 | 2019-04-09 | 京东方科技集团股份有限公司 | A kind of microfluidic components, micro-fluidic chip and preparation method thereof |
| CN110069168A (en) * | 2019-05-05 | 2019-07-30 | 京东方科技集团股份有限公司 | Micro fluidic device, operating method and control device for micro fluidic device |
| CN110523451A (en) * | 2019-09-30 | 2019-12-03 | 王殿宇 | Magnetic control microlayer model reactor preparation method based on super lubrication interface |
| CN110985333A (en) * | 2019-12-03 | 2020-04-10 | 广州大学 | Reversible micropump based on electrowetting phenomenon |
| CN110985333B (en) * | 2019-12-03 | 2022-03-22 | 广州大学 | Reversible micropump based on electrowetting phenomenon |
| CN111692209A (en) * | 2020-05-25 | 2020-09-22 | 南京航空航天大学 | Magnetic fluid controllable support micro platform based on extreme infiltration interface and manufacturing method |
| CN111692209B (en) * | 2020-05-25 | 2021-06-15 | 南京航空航天大学 | Magnetic fluid controllable support micro platform based on extreme infiltration interface and manufacturing method |
| CN115121301A (en) * | 2022-01-20 | 2022-09-30 | 电子科技大学 | Device and method for realizing liquid drop transportation on long-range self-circulation magnetic fluid |
| CN115531979A (en) * | 2022-09-16 | 2022-12-30 | 广东以色列理工学院 | Intelligent net material capable of adjusting liquid permeability in real time and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105863985B (en) | 2018-02-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105863985A (en) | Device for driving liquid to move through magnetic response compound interface, and preparation method and application thereof | |
| Yang et al. | Droplet manipulation on superhydrophobic surfaces based on external stimulation: A review | |
| Ju et al. | Bioinspired one-dimensional materials for directional liquid transport | |
| Cui et al. | Bioinspired smart materials for directional liquid transport | |
| Tang et al. | Bioinspired nanostructured surfaces for on-demand bubble transportation | |
| US11079141B2 (en) | Controlled liquid/solid mobility using external fields on lubricant-impregnated surfaces | |
| Huang et al. | Underwater spontaneous pumpless transportation of nonpolar organic liquids on extreme wettability patterns | |
| Zhou et al. | Magnetoresponsive surfaces for manipulation of nonmagnetic liquids: Design and applications | |
| Li et al. | Fish scale inspired design of underwater superoleophobic microcone arrays by sucrose solution assisted femtosecond laser irradiation for multifunctional liquid manipulation | |
| Lv et al. | Anisotropic sliding of underwater bubbles on microgrooved slippery surfaces by one-step femtosecond laser scanning | |
| Mohammed et al. | Self-running liquid metal drops that delaminate metal films at record velocities | |
| Li et al. | Directional and adaptive oil self‐transport on a multi‐bioinspired grooved conical spine | |
| Wu et al. | Photothermal actuation of diverse liquids on an Fe3O4-doped slippery surface for electric switching and cell culture | |
| Yang et al. | Underwater curvature-driven transport between oil droplets on patterned substrates | |
| Wu et al. | Adhesion-regulated switchable fluid slippage on superhydrophobic surfaces | |
| Ji et al. | Bioinspired geometry-gradient metal slippery surface by one-step laser ablation for continuous liquid directional self-transport | |
| Zhou et al. | Magnetically induced decrease in droplet contact angle on nanostructured surfaces | |
| CN104307582A (en) | Opening type micro-fluidic chip, as well as manufacture method and operation method of micro-fluidic chip | |
| Zhang et al. | Unidirectional self-driving liquid droplet transport on a monolayer graphene-covered textured substrate | |
| CN106007794B (en) | A kind of method and purposes of solvent-induced based superhydrophobic thin films wellability variation | |
| Jang et al. | Facile fabrication of superomniphobic polymer hierarchical structures for directional droplet movement | |
| Lapierre et al. | Reversible electrowetting on superhydrophobic double-nanotextured surfaces | |
| Zhang et al. | Ultrastable super-hydrophobic surface with an ordered scaly structure for decompression and guiding liquid manipulation | |
| Lu et al. | Droplet directional movement on the homogeneously structured superhydrophobic surface with the gradient non-wettability | |
| Zhuang et al. | Efficient bubble transport on bioinspired topological ultraslippery surfaces |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180227 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |