50 results about "Micro nanotechnology" patented technology

The present invention generally relates to new photophysical characteristics associated with certain macromolecules, heterogeneous phases with a pronounced index of refraction contrast, and biological complex macromolecules. Given this, in one embodiment the present invention relates to new processes, methods and applications, for enhancing signals and images. In another embodiment, the present invention relates to the design and development of scalable imaging systems and techniques, optical instrumentation and lenses, systems engineering, photonics and optoelectronics, low-power microelectronics, micro-nanotechnology, and sensing / biosensing applications for various applications (e.g., life science applications).

This invention deals with novel method and apparatus for positioning and motion control by rapid-response motorless linear motion, angular deflection, and continuous rotational motion utilizing the force due to electrons, ions, and / or neutrals. Thus forces and torques are produced without the use of internal moving parts. Control is achieved without recourse to magnetic fields, by means of high electric fields which may be attained at relatively low voltages. At low voltages, the instant invention exceeds the capability of conventional systems. It can perform dynamic motion control over a wide range of dimensions and signal bandwidth with independent amplitude and frequency modulation. Since there are no internal moving parts, the instant invention is the most adapted for fabrication at the micro and nanotechnology realms. Furthermore it provides less costly and greater ease of manufacture from the nano-to the macro-realm.

The invention relates to a drug-loading micro-needle promoted and controlled by a nanogold photo-thermal effect. The drug-loading micro-needle is composed of three components including gold nanoparticles, a photosensitizer wrapped by a lipidosome and a soluble micro-needle substrate material, wherein the mass concentration ratio of the three components in the micro-needle is 1:(1-50):(1-100). By utilizing the nanogold photo-thermal effect, the photo-thermal effect is generated by stimulating nanogold mixed in the micro-needle, so that decomposition of the micro-needle is promoted; therefore, rapid and controllable release of drugs are realized; when nanogold and the drugs enter skin tissue, the skin tissue permeability can be continuously increased through the nanogold photo-thermal effect, so that the drugs can be well delivered into deep tissue. The drug-loading micro-needle disclosed by the invention is a medical application research by combining an optical technology with a micro and nano technology in the field of biomedical engineering; in particular for a micro-needle system loaded with photosensitizer drugs, in the event of monitoring the photosensitization in tissue in real time, individual photodynamic therapy based on individual differences of patients can be realized through control of drug release by nanogold.

The invention provides an atomic force microscope probe based on structures of a carbon nano tube and a planar wave guide, belonging to the technical field of micronano. The atomic force microscope probe comprises a probe substrate platform compatible with the atomic force microscope, a planar wave guide attached to the surface of the probe substrate platform and a carbon nano tube as a probe point. when in use, the planar waveguide structure is connected to a high-frequency (microwave) measuring instrument, and the whole probe is arranged to the atomic force microscope (AFM) and is scanned or positioned by the standard operation of the AFM, so that the surface topography of a measuring sample can be measured and the high-frequency characteristics of the measuring sample can be synchronously measured in situ. Particularly, the high-frequency (microwave) transmission with small signal loss can be carried out by using the planar waveguide; the carbon nanotube as the probe point has excellent high-frequency transmission property and the mechanical property; the diameter of the carbon nanotube can be adjusted by controlling growth conditions; in addition, the invention is suitable for high-precision and high-frequency (high-frequency) measurement.

This invention deals with novel method and apparatus for positioning and motion control by rapid-response motorless linear motion, angular deflection, and continuous rotational motion utilizing the force due to electrons, ions, and / or neutrals. Thus forces and torques are produced without the use of internal moving parts. Control is achieved without recourse to magnetic fields, by means of high electric fields which may be attained at relatively low voltages. At low voltages, the instant invention exceeds the capability of conventional systems. It can perform dynamic motion control over a wide range of dimensions and signal bandwidth with independent amplitude and frequency modulation. Since there are no internal moving parts, the instant invention is the most adapted for fabrication at the micro and nanotechnology realms. Furthermore it provides less costly and greater ease of manufacture from the nano-to the macro-realm.

The invention discloses an optimization method for a carbon nanotube and metal copper composite electroplating process in the field of micro / nano technology. In an acid copper plating mode, copper sulfate and carbon nanotubes are mixed to serve as electroplating solution, the electroplating bath is added with polyacrylic acid serving as a dispersing agent, and then is poured into an electroplating tank, and electroplating is carried out under ultrasonic environment. The carbon nanotubes are firmly combined with the metal copper, and are uniformly distributed on a composite coating, and the quality of the composite coating is improved in the aspects of quantity and uniformity of the carbon nanotubes.

The invention belongs to the technical field of test of optical precise imaging, and relates to a laser stimulated emission depletion (STED) and three-dimensional superresolving spectral pupil differential confocal imaging method and device. The method and device are characterized in that the spectral pupil laser differential confocal detecting technology and the laser STED imaging technology are organically integrated, the characteristics of high resolution and high scatter suppression of the spectral pupil laser differential confocal detecting technology are integrated, the laser differential confocal technology is performed to improve the axial resolution capacity, the STED technology is performed to improve the transverse resolution capacity, and as a result, the spatial resolution capacity of the system and the resistance to sample scattering can be improved. The device comprises an excitation laser system, a first dichroic mirror, a quarter-wave plate, a measuring objective lens, a sample, a scanning workbench, a quenching laser system, a beam-shaping system, a second dichroic mirror, a spectral pupil differential confocal detecting system and a data processing module. The method and device have an extensive application prospect in the micro-nano technical field with the high spatial resolution and high scattering sample suppression three-dimensional superresolving imaging and detecting capacities.

The invention belongs to the technical field of optical precise imaging test, and relates to a laser stimulated emission depletion (STED) and three-dimensional superresolving differential confocal imaging method and device. The method and device are characterized in that the laser differential confocal detecting technology and the laser STED imaging technology are organically integrated, the laser differential confocal technology is performed to improve the axial resolution capacity, and while the STED technology is performed to improve the transverse solution capacity, so that the spatial resolution capacity of the system can be improved. The device comprises an excitation laser system, a first dichroic mirror, a quarter-wave plate, an objective lens, a sample, a scanning workbench, a quenching laser system, a beam shaping system, a second dichroic mirror, a differential confocal detecting system and a data processing system. The method and device have an extensive application prospect in the micro-nano technical field with the high spatial resolution three-dimensional superresolving imaging and detecting capacities.

The invention relates to a phospholipid bilayer membrane array fabricated by a multilayer polyelectrolyte membrane substrate and a fabrication method. A static layer-by-layer self-assembly technology is adopted to fabricate polyelectrolyte poly-(4-sodium styrene sulfonate) (PSS) and poly-(diallyl dimethyl ammonia chloride) (PDDA) multilayer membranes on a silicon substrate modified by 3-ammonia propyltriethoxysilane, the modified substrate is subjected to patterning by a photetching technology, arrays of a polyelectrolyte in different types are fabricated, a phospholipid bilayer membrane is fabricated at the bottoms of the arrays, and the phospholipid bilayer membrane array is fabricated. According to the method, the layer-by-layer assembly technology is introduced into the fabrication of the patterned substrate, the fabrication method of the phospholipid bilayer membrane array is enriched and expanded, the method has the advantages of simplicity in operation, mild reaction conditions, good controllability, high stability, low cost and the like, and a reliable technology is provided for the research and application of biological membrane characteristics with respect to the fields of membrane biophysics, interface chemistry, biochemistry, bionics and micro-nano technologies.

The invention relates to a method for rapidly corroding and patterning an indium tin oxide (ITO) surface by using an electrochemical technology, belonging to the fields of electrochemistry and micro-nanotechnologies. Aiming at the problem of the traditional ITO-corroding method, the method for rapidly corroding and patterning the indium tin oxide surface by using the electrochemical technology, provided by the invention, comprises the steps as follows: (1) washing the ITO surface; (2) pressing a used photoresist into a protective film on an ITO substrate by using a plastic-envelop machine, directly placing a mask of a used pattern, performing ultraviolet exposure and developing, and forming and washing to form a needed pattern; (3) corroding exposed ITO part of the photoresist on the ITO surface with diluted hydrochloric acid as a corrosive liquid by using cyclic voltammetry or chronoamperometry and the electrochemical technology; and (4) washing an electrochemically corroded ITO glass sheet by using an alkali solution, removing a protective photoresist film; and drying by using N2 to obtain a patterned ITO surface. The method for rapidly corroding and patterning the indium tin oxide surface by using the electrochemical technology has the advantages of simplicity in operation, high speed, good corrosive effect, clearness of borders, low cost and the like.

The invention relates to a laser implantation preparation method for a multi-dimensional continuous fine structure, and belongs to the fields of surface fine structure processing and micro / nano technologies. Through 3D printing type scan feeding of a movable three-dimensional fine platform in combination with repeated irradiation of laser light, a multi-layer fine structure is prepared on a substrate by continuously supplementing a suspension containing fine particles. According to the method, a multi-layer fine structure of the same material and a multi-layer fine structure of different materials can be prepared on the substrate. Through adoption of the method, the bonding strength among layers of an implanted fine structure can be enhanced, and the bonding strength and appearance of the implanted structure can be improved. In the method, laser light does not directly act on a target material, so that melting and vaporization of the target material are avoided, and the repeating accuracy of a scanning track can be ensured.

The invention relates to the field of lithium ion batteries and the micro-nanotechnology field and especially relates to a method for utilizing waste silicon powder and carbon to compound and preparea lithium ion cathode material. The method for utilizing the waste silicon powder and carbon to compound and prepare the lithium ion cathode material comprises the following steps: 1) preparing a silicon powder with a porous surface structure, and 2) preparing a carbon-coated porous silicon compound material. According to the invention, a waste silicon powder of diamond wire cutting generated by aphotovoltaic factory is used as a silicon raw material and a metal catalysis etching method is adopted for preparing the silicon powder with the porous structure; the surface of the silicon powder has ducts of a nano-structure; carbon is wrapped on the surface and the carbon layer can be penetrated into the gaps on the silicon powder surface, so that the combined structure is deeper; the synergistic effect of the carbon silicon compound structure is capable of limiting the volume expansion of the silicon, so that the lithium electric property can be promoted.

The invention discloses an entire-column preparation method of a nano-particle stabled Pickering emulsion based packing and relates to the technical field of analytical detection and micro-nano, in particular to a preparation method of an entire column with an aim to mainly solve problems that existing packings of the entire column are different in hydrophilic-hydrophobic properties and cannot be separated from molecules different in enrichment hydrophilicities. The method includes: 1), preparing a nano-particle stabled Pickering emulsion; 2), pretreating the entire column; 3), filling the Pickering in the entire column; 4), eluting the entire column to obtain the entire column of the nano-particle stabled Pickering emulsion based packing. The method has the advantages of rapidness, high efficiency, convenience, low cost and environment friendliness, and meanwhile, the packing can be prepared in large quantities and reused; the entire-column preparation method of the nano-particle stabled Pickering emulsion based packing can be acquired.

A medicine-carrying chitosan / sodium alginate slow-release microparticle algistat is disclosed, including slow-release microparticles and a carboxylic acid type active allelochemical embedded in the microparticles. The slow-release microparticles are formed from sodium alginate polyanion and chitosan amino cations through ion crosslinking reaction. Through combination of micro-nano techniques, chitosan and sodium alginate are adopted as carrier materials to embed the carboxylic acid type algae suppression active substance to prepare the slow-release microparticle algistat having a small particle size. The algistat is not liable to expand or sink, can prolong Microcystis aeruginosa suppressing time of the carboxylic acid type active allelochemical in water bodies, can reduce the cost, and can effectively solves a problem that direct addition of the carboxylic acid type active allelochemical into a water body has defects of large active substance dosage, easy loss, incapability of reaching an algae suppression concentration, and the like. The adopted chitosan and the sodium alginate are natural nontoxic biodegradable polymer materials good in biocompatibility, and can effectively avoid secondary pollution in algae suppression processes. The algistat can be widely applied for natural water bodies such as ponds, reservoirs and lakes.

The invention provides a method for synthesizing oleic acid / sodium oleate vesica under an alternating electric field, belongs to the technical fields of cytobiology, membrane biophysics, biochemistry, drug carriers and micro-nano, particularly relates to a method for synthesizing the oleic acid / sodium oleate vesica, and aims to solve the problems that according to the existing vesica synthesizing methods, relatively expensive phospholipid is taken as a material, and the development of the vesica as a drug carrier is limited, or a vesica synthesized by oleic acid is smaller and is not easy to observe under an optical microscope. The method comprises the steps of 1, preparing a methanol solution of oleic acid / sodium oleate; 2, pretreating an ITO electrode; 3, coating; 4, assembling an electric forming device; 5, electrically forming the oleic acid vesica, thus finishing synthesizing the oleic acid / sodium oleate vesica under the alternating electric field. The method is used for synthesizing the oleic acid / sodium oleate vesica under the alternating electric field.

The invention relates to a method for preparing a super-hydrophobic indium antimonide film by deposition in ionic liquid in the field of micro / nano technology. The method comprises the following steps of: putting a substrate into 1-methyl-3-ethylimidazole bis(trifluoromethylsulfonyl)imide salt solution containing indium chloride and antimony chloride and performing electrochemical deposition to obtain a film; and performing surface chemical modification on the film to obtain the super-hydrophobic indium antimonide film. The contact angle of water drops of the deposited indium antimonide film subjected to surface chemical modification is more than 150 degrees, and the rolling angle is less than 20 degrees. The method is simple and practicable and can be suitable for the surfaces of various conductive substrates.

The invention discloses a microstructure unidirectional bending fatigue test device, which is characterized by the following: the driving comb couple is set on one side of hung vibration block and the test comb couple is set to detect the vibration amplitude on the other side; the outside wall of driving and test comb couples is fixed on the silicon base through anchor fixing layer, which connects the driving electrode to generate periodic electrostatic force and test electrode of sensing circuit; the end of hung vibration block connects one end of sample to produce alternating stress; the other end connects the ground electrode; the sample integrates with the driving and detecting device; the driving electrode connects the output probe of power amplifier; the test electrode is leaded by probe to connect the input end of terminal control equipment after the probe is switched in the amplitude measuring circuit. The device adapts the research based on micronanometer technique on the MEMS system.

A medicine-carrying chitosan slow-release microparticle algistat and a preparing method thereof are disclosed. The algistat includes slow-release microparticles and a carboxylic acid type active allelochemical embedded in the microparticles. The slow-release microparticles are formed from chitosan amino cations and sodium tripolyphosphate polyanion through ion crosslinking reaction. Through combination of micro-nano techniques, chitosan and sodium tripolyphosphate are adopted as carrier materials to embed the carboxylic acid type algae suppression active substance to prepare the slow-release microparticle algistat which has a small particle size and which is not liable to expand or sink. The Microcystis aeruginosa suppressing time of the carboxylic acid type active allelochemical in waterbodies is prolonged, the cost is reduced, and a problem that direct addition of the carboxylic acid type active allelochemical into a water body has defects of large active substance dosage, easy loss, incapability of reaching an algae suppression concentration, and the like can be effectively solved. The adopted chitosan and the sodium tripolyphosphate are natural nontoxic biodegradable polymer materials good in biocompatibility, and can effectively avoid secondary pollution in algae suppression processes. The algistat can be widely applied for natural water bodies such as ponds, reservoirs and lakes.

The invention belongs to the research field of the optical fiber micro-nanotechnology, in particular to an optical-driven vibration motor device capable of stably changing the position and the vibration frequency of absorbent particles. The device comprises an optical tweezers system consisting of a first optical fiber light source, a second optical fiber light source, an optical fiber wavelengthdivision multiplexer and a single-mode optical fiber, and the optical tweezers system, an absorbent black sphere and liquid form the optical-driven vibration motor device. Two kinds of photophoretic forces are used to play an optical driving role on the absorbent particles, the absorbent black sphere can be stably captured in a non-contact mode, and the position and the vibration frequency of theabsorbent black sphere driven by the optical-driven vibration motor can be controlled. The position and the vibration frequency of absorbent particles can be changed and driven at the same time through changing the power of two light sources; the position of the device is accurately controlled and the structure is simple; the absorbent particles in the liquid background can be easily optically driven; and the adopted device is low in price, the making method is simple, and the device is suitable for being promoted in the field of biomedicine.

The invention belongs to the research field of the optical fiber micro-nanotechnology, in particular to an optical-driven vibration motor device capable of stably changing the position and the vibration frequency of absorbent particles. The device comprises an optical tweezers system consisting of a first optical fiber light source, a second optical fiber light source, an optical fiber wavelengthdivision multiplexer and a single-mode optical fiber, and the optical tweezers system, an absorbent black sphere and liquid form the optical-driven vibration motor device. Two kinds of photophoretic forces are used to play an optical driving role on the absorbent particles, the absorbent black sphere can be stably captured in a non-contact mode, and the position and the vibration frequency of theabsorbent black sphere driven by the optical-driven vibration motor can be controlled. The position and the vibration frequency of absorbent particles can be changed and driven at the same time through changing the power of two light sources; the position of the device is accurately controlled and the structure is simple; the absorbent particles in the liquid background can be easily optically driven; and the adopted device is low in price, the making method is simple, and the device is suitable for being promoted in the field of biomedicine.

The invention belongs to the field of fertilizers, and relates to a liquid calcium fertilizeras well as a preparation method and application thereof. The liquid calcium fertilizer is prepared from the following components by weight: 35-59 parts of calcium element, 1-2 parts of a wetting agent, 2-4 parts of a dispersant, 0.5-1 part of a surfactant, 1-3 parts of an emulsifier, 2-3 parts of an antifreezing agent, 0.5-4 parts of a thickener, 0.1-0.2 part of an antifoaming agent, and 27.3-51.8 parts of water. Calcium is suspended together in the form of micro-nano particles through an ultra-micro nano technology and a water-phase micro-suspension polymerization technology, the content of calcium in the obtained ultra-micro nano suspension liquid calcium fertilizer is high and can reach 280-612 g / L, the average particle size of the calcium is about 1.5 microns, the prepared ultra-micro nano suspension liquid calcium fertilizer can improve the dispersing performance of the ultra-micro nano suspension liquid calcium fertilizer in an aqueous solution system, and the calcium nutrition can be well and quickly supplemented for crops.

The invention discloses a hydrophobic anisotropic surface as well as a preparation method and application thereof, and belongs to the technical field of micro-nano technology and polymer surface processing; the hydrophobic anisotropic surface is a cone structure array surface, and the hydrophobic anisotropic surface is finally prepared by preparing a membrane casting solution, scraping a membraneand performing phase inversion, stripping and hydrophobic modification. The cone structure array surfaces with different sizes are prepared by changing the thickness of a wiped film, the composition of a phase inversion solvent and the proportion of a mixed phase inversion solvent, and the surface hydrophobicity is controlled by hydrophobic nanoparticles with different concentrations. The preparation method disclosed by the invention is simple and feasible, and the prepared cone structure array is easy to control in size, low in cost, environment-friendly, safe, reliable and easy for industrial large-scale production. The technical scheme disclosed by the invention opens up a new way for large-scale preparation of the micro-nano structure, and provides a new thought for realizing directional lossless continuous conveying of the liquid.

The invention discloses reversible wetting on a metal substrate of electric-field induced liquid metal and application, and belongs to the technical field of micro-nano technology and functional material preparation. A metal porous net surface with a micro-nano structure is prepared through an electrochemical deposition method, and a preparation method of the metal porous net surface is simple, iseasy in operation and is low in cost. The electric-field induced liquid metal can realize quick revisable wetting on a stainless steel porous screen surface of the micro-nano structure. Besides, reversible wetting property, on the stainless steel porous screen surface of the micro-nano structure, of the electric-field induced liquid metal is applied into a controllable liquid permeating apparatus, so that liquid penetration is flexibly controlled. In conclusion, the technical scheme protected by the invention realizes quick de-wetting of the liquid metal on the surface of the metal substrateand achieves the quick revisable wetting effect, and is suitable for market popularization and application.

The invention discloses a lymph dye making silicon dioxide microparticle as supporter and its preparation method, which comprises subjecting lymph gland labeling dye to adsorption, embedding to connect to the surface, porosity or internal cavity of silica dioxide particles, thus forming silica dioxide particle for labeling sentinel lymph node. The provided lymph dyestuff using silica dioxide particles as carrier agent can improve the convenience and accuracy of sentinel lymph node positioning.

The invention discloses an application of ultra-micro nanotechnology in a preparation technology of edible fungus crisps. The preparation technology of the edible fungus crisps comprises the following steps: S1, crushing accessory ingredients to be dipped together with the edible fungi under impact of air flows by using an ultrafine airflow grinder so as to prepare ultrafine powder of which the granule size is 10-12 microns, and cooling the ultrafine powder until temperature of the ultrafine powder is 6 DEG C below zero to 0 DEG C; S2, crushing the cooled ultrafine powder into powder of which the granule size is 100 nanometers or smaller by using a nanometer-grinder so as to prepare nanometer-grade accessory ingredients; and S3, adding the edible fungi and the nanometer-grade accessory ingredients into a vacuum dipping device according to a mass ratio of 1: (0.8-1.2), pumping air from the vacuum dipping device so as to maintain a pre-set vacuum degree, so that the edible fungi are immersed by the nanometer-grade accessory ingredients. The coating method disclosed by the preparation technology makes the edible fungi high in absorption rates to the accessory ingredients, so that the edible fungi are fully flavored; moreover, yields of the edible fungi after dipping are greatly improved.

This invention deals with novel method and apparatus for positioning and motion control of the elements (mirrors) of a Fresnel reflector solar concentrator tracking heliostat array by rapid-response motorless linear motion, angular deflection, and rotational motion utilizing electric wind force due to electrons, ions, and / or neutrals. Thus forces and torques are produced without the use of internal moving parts. Control is achieved without recourse to magnetic fields, by means of high electric fields which may be attained at relatively low voltages. At low voltages, the instant invention exceeds the capability of conventional systems. It can perform dynamic motion control over a wide range of dimensions and signal bandwidth with independent amplitude and frequency modulation. It is ideally suited for maximization of solar energy focused by the array onto a receiver. Since there are no internal moving parts, the instant invention is the most adapted for fabrication at the micro and nanotechnology realms. Furthermore it provides less costly and greater ease of manufacture from the nano-to the macro-realm.

The invention relates to a method for depositing and preparing a super-hydrophobic indium antimonide thin film, belonging to the field of micro-nano technologies. The method comprises the steps: placing a substrate in 1-methyl-3-ethyl imidazolium bis(trifluoromethyl sulfonyl) imide solution containing indium chloride and antimonic chloride to carry out electrochemical deposition to obtain a thin film, and carrying out surface chemical modification on the thin film to obtain the super-hydrophobic indium antimonide thin film. After surface chemical modification of the indium antimonide thin film obtained by deposition, the contact angle of water drop is more than 150 degrees and the roll angle is smaller than 20 degrees. The method is simple and feasible, and is suitable for various conductive substrate surfaces.

The invention relates to the micro-nano technical field, in particular to a novel spraying device for multiple substrates. The novel spraying device for the multiple substrates comprises a working panel, a cushion block base, a heat insulating bottom plate, a silica gel heater, a heating plate and a slide glass clamp. According to the novel spraying device for multiple substrates, substrates can be simultaneously placed on a plurality of substrate placing square sheets, the spraying of multiple substrates is simultaneously completed, and the slide glass clamp is convenient to replace. Besides, the novel spraying device for multiple substrates is reasonable in structural design, is efficient and quick in substrate spraying and is suitable for being popularized and used.

The invention discloses a preparation method and application of a graphene@molybdenum diselenide@SnS heterogeneous interface composite material, belongs to the field of electrochemistry and the fieldof micro-nano technologies, and particularly relates to a preparation method and application of the graphene@MoSe2@SnS heterogeneous interface composite material. The invention aims to solve the problems of low conductivity and serious volume expansion of the existing transition metal selenide serving as a negative electrode material of a battery. The method comprises the following steps: 1, preparing a graphene@MoSe2 composite material; 2, preparing the graphene@MoSe2@SnS heterogeneous interface composite material. The graphene@MoSe2@SnS heterogeneous interface composite material is applied as a lithium ion battery negative electrode material. According to the invention, the graphene@MoSe2@SnS heterogeneous interface composite material can be obtained.

The invention relates to an elastic film variable-capacitance type platelet micro-force sensor based on micro-nano technology. The platelet micro-force sensor is a parallel-board variable capacitor and comprises an upper anode board and a lower cathode board, wherein the upper anode board and the lower cathode board are parallel with each other. The outer side surface of the anode board is provided with a barrel-shaped anode gold film and an anode leading-out measuring contact. An anode working surface is provided with an organic silicon intermediate material layer. The inner bottom surface of the barrel-shaped anode metal film is provided with a human fibronectin layer. The cathode working surface of the cathode board is provided with a cathode gold film and a cathode leading-out measuring contact. The sensor provided by the invention can perform quick, simple and direct measurement on a platelet contraction force. The elastic film variable-capacitance type platelet micro-force sensor is necessary technical equipment which performs functions of settling a worldwide problem of testing middle-and-later period function of the platelet, researching the physiological mechanism and pathological mechanism of the platelet, finding out abnormal platelet function in an early period, guiding development of a platelet anticoagulant medicaments and illuminating a forming mechanism of related diseases.