WO2022098264A1 - Безлинзовый голографический осмометр - Google Patents
Безлинзовый голографический осмометр Download PDFInfo
- Publication number
- WO2022098264A1 WO2022098264A1 PCT/RU2021/050357 RU2021050357W WO2022098264A1 WO 2022098264 A1 WO2022098264 A1 WO 2022098264A1 RU 2021050357 W RU2021050357 W RU 2021050357W WO 2022098264 A1 WO2022098264 A1 WO 2022098264A1
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- WO
- WIPO (PCT)
- Prior art keywords
- sample
- osmometer
- properties
- holographic
- radiation source
- Prior art date
Links
- 230000005855 radiation Effects 0.000 claims abstract description 32
- 230000003287 optical effect Effects 0.000 claims abstract description 25
- 230000008859 change Effects 0.000 claims abstract description 15
- 239000010409 thin film Substances 0.000 claims abstract description 11
- 230000003204 osmotic effect Effects 0.000 claims abstract description 9
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 6
- 239000013078 crystal Substances 0.000 claims abstract description 4
- 239000011159 matrix material Substances 0.000 claims description 29
- 239000012528 membrane Substances 0.000 claims description 11
- 230000001427 coherent effect Effects 0.000 claims description 7
- 238000013425 morphometry Methods 0.000 claims description 6
- 238000001093 holography Methods 0.000 claims description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 2
- 230000004044 response Effects 0.000 claims description 2
- 239000004065 semiconductor Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 12
- 238000005259 measurement Methods 0.000 abstract description 10
- 239000000126 substance Substances 0.000 abstract description 10
- 239000007788 liquid Substances 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 3
- 230000006872 improvement Effects 0.000 abstract description 2
- 230000004304 visual acuity Effects 0.000 abstract 1
- 239000000523 sample Substances 0.000 description 53
- 230000007704 transition Effects 0.000 description 12
- 238000001816 cooling Methods 0.000 description 8
- 238000005382 thermal cycling Methods 0.000 description 8
- 239000000835 fiber Substances 0.000 description 7
- 238000002103 osmometry Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000002198 surface plasmon resonance spectroscopy Methods 0.000 description 5
- 244000203593 Piper nigrum Species 0.000 description 3
- 239000010408 film Substances 0.000 description 3
- 238000007710 freezing Methods 0.000 description 3
- 230000008014 freezing Effects 0.000 description 3
- 238000013507 mapping Methods 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000008045 co-localization Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000003562 morphometric effect Effects 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 238000000844 transformation Methods 0.000 description 2
- 238000012800 visualization Methods 0.000 description 2
- 208000003556 Dry Eye Syndromes Diseases 0.000 description 1
- 206010013774 Dry eye Diseases 0.000 description 1
- 239000012491 analyte Substances 0.000 description 1
- 230000005290 antiferromagnetic effect Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000002790 cross-validation Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005206 flow analysis Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 206010023332 keratitis Diseases 0.000 description 1
- 201000010666 keratoconjunctivitis Diseases 0.000 description 1
- 238000000960 laser cooling Methods 0.000 description 1
- 238000004093 laser heating Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 230000005291 magnetic effect Effects 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 230000001404 mediated effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000001073 sample cooling Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000010200 validation analysis Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N13/00—Investigating surface or boundary effects, e.g. wetting power; Investigating diffusion effects; Analysing materials by determining surface, boundary, or diffusion effects
- G01N13/04—Investigating osmotic effects
Definitions
- the invention relates to the field of research on the physical and chemical properties of matter, and in particular to methods and devices for measuring osmotic pressure in liquid and partially ordered media [G01N13/04, G01L11/02, G03H1/00],
- osmometers with fiber and a grating are known [CN 2938032 Y, publ.: 06/26/2006], [CN 201016745 Y, publ.: 12/21/2006], containing a pressure-transmitting transducer and a sensor element, a container with a membrane, a guide fitting (connected to a container and, accordingly, a membrane), a gauge fiber optic grating assembly, or a functionalized grid, with one end of the path fixed to the guide fitting.
- optical osmometers with a fiber optic probe and a simple diaphragm illuminated by light focused from the fiber optic probe, part which is returned through this probe to the optical detector.
- the pressure changes, which acts on the diaphragm and modulates the light flux that enters the detector in proportion to the change in pressure, and the change in pressure is interpreted in the mathematical software of the metrological process as a measure of the concentration of the analyzed substances in a liquid.
- This principle of optical osmometry is considered as a prototype of optical osmometers with a fiber-optic Bragg grating [CN101603873A, 07/14/2009], therefore, it has the same disadvantages, namely, it does not lead to obtaining many characteristics of phase transitions in a medium, does not characterize the phase structure or kinetics transformations; is not a position sensitive method.
- This method also does not work well for non-Newtonian liquids, the viscosity of which depends on the velocity gradient, especially in high-speed measurement modes, accompanied by reaction-diffusion processes in the osmometered system.
- optical osmometric device for ophthalmological (lacrimological) studies, based on the principles of SPR (surface plasmon resonance), which involves sampling for keratoconjunctivitis (dry eye syndrome) with a micropipette or other probe, after which the sample from the surface of the eye is applied to the sensitive surface of the prism, included in the optical registration system of surface plasmon resonance, the data from which are used for computer-mediated measurement of tear osmolarity [US20050159657A1, publ.: 08.01.2004].
- SPR surface plasmon resonance
- osmometer compatible with optical technology at the registration stage is a film osmometer on a chip.
- Sample osmolarity is measured on a chip by depositing an aliquot of the sample on a substrate, introducing liquid into the area of the substrate sample, and measuring the energy properties of the sample on the chip [US7017394B2, publ.: 06.08.2002]. It is possible to combine electrical impedance, cryoscopic and optical (including fluorescence) measurements of a single sample dose ( ⁇ 20 ⁇ l) in a chip in a synchronized mode.
- the disadvantages of this type of osmometers are the impossibility of position-sensitive measurements in the sample volume, the impossibility of establishing the colocalization of impedance, thermal and optical-fluorescent parameters in the sample space, the impossibility of using flow analysis methods.
- cryoscopic osmometers with optical control including a video microscope with a CCD camera and a backlight source made in the form of an LED, between which there is a measuring cell fixed in the heating-cooling unit.
- This configuration makes it possible to visualize phase transitions (from liquid to solid state) and enter their optical (morphometric) characteristics (descriptors) into the PC memory, where the phase transition point is detected using specialized software, which is used to determine the melting point, which, in turn, turn, is used to determine the osmolality in the NANOLITER OSMOMETER [US 20060245466 A1, publ.: 27.04.2005].
- the main technical problem of the prototype is the low accuracy of determining the melting point (phase transition point), due to the need to introduce an optical circuit with a lens into the cryoscopic osmometer circuit, on which moisture can condense from the cell, the impossibility of visualizing the distribution of phases in a three-dimensional format in the volume of the cell, the need to focus the microscope to view each individual structure or level of the sample surface, which affects the quality of the processed image.
- the objective of the invention is to eliminate the disadvantages of the prototype.
- the technical result of the invention is to improve the metrological quality and resolvometric characteristics of optical lensless recording of the properties of a substance when their temperature changes.
- a lensless holographic osmometer characterized by determining the change in the properties of the sample during cryoscopic exposure to it by the position of the beam from the radiation source passing through the sample on a position-sensitive matrix, characterized in that the change in the properties of the sample is detected by the formation of crystals sample, visualized when scanning the holographic projection of the sample on the plane of the position-sensitive matrix, at least one radiation source moving along the goniometric scale in several different discrete-stationary positions, while determining the non-optical properties and osmotic characteristics of the sample that change under cryoscopic exposure , thin-film elements are placed in the container with the sample.
- the osmotic characteristics of the sample are determined from the data of holographic volumetric morphometry of the response patterns of thin-film elements made in the form of membrane shells.
- thin-film elements are made in the form of thin-film converters of a non-optical analytical signal.
- the off-axis holography geometry is used to register the sample structure.
- the goniometric scale is 3D.
- the goniometric scale is made in the form of a protractor.
- the curvature of the goniometric scale is arbitrary.
- the gradation of the goniometric scale differs from the linear one.
- the radiation source is made in the form of a semiconductor laser source of tunable power and/or wavelength.
- the radiation source is made in the form of a matrix of coherent radiation sources with different wavelengths with tunable power and wavelength.
- the radiation source is made in the form of a multi-chip or phosphor LED.
- the figure shows a schematic representation of a lensless holographic osmometer, which shows: 1 - cryoscope capacity, 2 - sample cooling and thermal cycling unit, 3 - temperature controller, 4 - position-sensitive matrix, 5 - radiation source, 6 - goniometric scale, 7 - control unit, 8 - temperature sensor, 9 - angular positions of the light source.
- the lensless holographic osmometer contains a transparent container of a cryoscope 1, a cooling and thermal cycling unit 2, a temperature controller 3, a position-sensitive matrix 4, at least one radiation source 5 mounted on a goniometric scale 6, a control unit 7, and at least one temperature sensor eight.
- the cooling and thermal cycling unit 2 is mounted around the side walls of the cryoscope tank 1 and is made in the form of a solid element, for example, a Peltier element.
- the cooling and thermal cycling unit 2 is made in the form of an element based on the principles of laser heating and cooling of solids.
- the cooling and thermal cycling unit 2 is made in the form of a liquid cooler, for example, a microfluidic element.
- the position-sensitive matrix 4 made in the form of a CMOS matrix, a CCD matrix, a bolometric matrix, a scintillation position-sensitive detector, etc., is mounted under the capacitance of the cryoscope 1 in such a way that the light from the radiation source 5, mounted above the position-sensitive sensitive matrix 4, passing through the mentioned container 1, fell on the position-sensitive matrix 4.
- the radiation source 5 is made in the form of a single laser or a matrix of several lasers with different wavelengths, providing holography of the sample for several spectral ranges corresponding to the spectra of the sample components.
- the implementation of the radiation source 5 is made in the form of a single an LED or array of LEDs with a high collimation and, accordingly, a sharp radiation pattern at one or more wavelengths.
- the radiation source 5 is movably mounted on a goniometric scale 6 mounted above the surface of the position-sensitive matrix 4.
- the goniometric scale 6 is made with the possibility of movable positioning of the radiation source 5 with respect to the sample in the container of the cryostat 1 and can be made in the form of a protractor, while the movement is made around the axis lying in the projection zone on the plane of the position-sensitive matrix 4.
- the implementation the goniometric scale 6 is made in the form of any multiaxial system that provides the projection of the sample structures onto the position-sensitive matrix 4 with the center of symmetry in the plane of the said matrix 4.
- the goniometric scale 6 can have any orientation that does not prevent the formation of a beam from the radiation source 5 in the projection plane as axial and off-axis holograms with different in the sequence of registration points modes of movement of the radiation source 5 and scanning of the sample.
- the position-sensitive matrix 4 is connected to the control unit 7, which is configured to collect and process data from the position-sensitive matrix 4, in particular, to restore holographic patterns of the sample structure from sequential scan files by the radiation source 5 in different angular positions of the light source 9, as well as the formation of control signals to the temperature controller 3 depending on the change in the structure of the sample, crystallized and thermally cycled in the cryoscope tank 1 under the control of the temperature sensor 8, made, for example, in the form of a film thermosensor mounted in the cryoscope tank 1. Temperature sensor 8, regulator temperature 3 and the cooling and thermal cycling unit 2 are also connected to the control unit 7.
- a lensless holographic osmometer is used as follows.
- the freezing temperatures of analytes in the cryoscopy mode and data on osmolality in the osmometry mode are recorded, and the freezing temperature of the sample is detected by the control unit 7 by the formation of crystals in the capacity of the cryoscope 1, visualized in various scanning modes and holographic projections of the sample on the plane of the position-sensitive matrix 4 by a radiation source 5 moving along a goniometric scale 6 or by a matrix of radiation sources 5 of the same type in several discrete-stationary positions 8.
- cryoscopy modes or Pfeffer osmometry modes for mutual validation of the van't Hoff coefficient morphometry changes in the volume of membrane sensitive elements (shells) in the cryoscope 1 according to the morphometry of membrane shells pre-loaded into the mentioned container 1, equivalent to semipermeable films or membranes in Pfeffer osmometry and osmometry ic-active environment.
- the position-sensitive matrix 4 in this case works as a lensless microscope, and the position and configuration of the membrane shells are independent of the position of the radiation source 5, but are within the field of view of the lensless microscope.
- phase transition points are detected and the nature of said transition.
- the transition through the Curie point may be of interest, in particular, when irradiated with a source of coherent radiation, especially when the properties of electrical and magnetic symmetry in ferroelectrics and ferromagnets change abruptly; for antiferromagnets, the transition through the Neel point may also be of interest. , i.e.
- the measurement data can be localized on a single position-sensitive matrix of a flexible configuration without the introduction of electrodes and other additional sensors that prevent sample visualization.
- EFFECT improvement of metrological quality and resolvometric characteristics of optical lensless recording of the properties of a sample of a substance when its temperature changes, is achieved by mapping a plurality of sample properties in the process of detecting the sample temperature by visualizing in a volumetric format a sample placed in a cryoscope container 1 due to a lensless holographic projection of the sample on the plane of the position-sensitive matrix 4 passing through the volume of the sample, including thin-film elements placed in the specified volume, by a coherent or partially coherent radiation source 5 moving along a goniometric scale 6 or by a matrix of radiation sources 5 of the same type in several angular positions light source 9, while the measurement accuracy is limited only by the resolution of the position-sensitive matrix 4.
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Holo Graphy (AREA)
Abstract
Description
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Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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RU2020136554A RU2758153C1 (ru) | 2020-11-06 | 2020-11-06 | Безлинзовый голографический осмометр |
RU2020136554 | 2020-11-06 |
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WO2022098264A1 true WO2022098264A1 (ru) | 2022-05-12 |
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PCT/RU2021/050357 WO2022098264A1 (ru) | 2020-11-06 | 2021-10-27 | Безлинзовый голографический осмометр |
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RU (1) | RU2758153C1 (ru) |
WO (1) | WO2022098264A1 (ru) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004017050A1 (en) * | 2002-08-06 | 2004-02-26 | The Regents Of The University Of California | Tear film osmometry |
US20060245466A1 (en) * | 2005-04-27 | 2006-11-02 | Corbett Christopher J | Nanoliter osmometer and method of operation |
CN108548798A (zh) * | 2018-03-07 | 2018-09-18 | 南京中医药大学 | 与细胞内胶体渗透压相关的生物大分子光学检测方法及其相关药物筛选方法的构建和应用 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
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US4725142A (en) * | 1983-09-20 | 1988-02-16 | University Of Delaware | Differential holography |
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- 2021-10-27 WO PCT/RU2021/050357 patent/WO2022098264A1/ru active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004017050A1 (en) * | 2002-08-06 | 2004-02-26 | The Regents Of The University Of California | Tear film osmometry |
US20060245466A1 (en) * | 2005-04-27 | 2006-11-02 | Corbett Christopher J | Nanoliter osmometer and method of operation |
CN108548798A (zh) * | 2018-03-07 | 2018-09-18 | 南京中医药大学 | 与细胞内胶体渗透压相关的生物大分子光学检测方法及其相关药物筛选方法的构建和应用 |
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