1292 results about "Glass chip" patented technology

The invention relates to a preparation method for a micro-electro-mechanical system (MEMS) atomic vapor chamber and the atomic vapor chamber. The chamber is prepared by bonding a Pyrex glass sheet, a silicon wafer and a Pyrex glass sheet by an anodic bonding technology; the Pyrex glass sheet is taken as a window of the chamber; a chamber space is formed by etching or corroding the silicon wafer; paraffin packaged alkali metal such as rubidium (Rb) or cesium (Cs) is put into the chamber, and buffer gas with appropriate pressure is introduced simultaneously; paraffin is taken as a packaging material of the alkali metal, so that active alkali metal is isolated from oxidants such as oxygen, water vapor and the like in an environment; the paraffin is also used as a plating material of the chamber, so that collision between Rb or Cs atoms and a chamber wall is slowed down; and a CO2 laser is used for melting the paraffin to release the alkali metal, so that a uniform paraffin plating is formed on the chamber wall. The problem of long-term drift caused by reaction residues generated by a field preparation mode is solved, the collision between the Rb or Cs atoms and the chamber wall is slowed down, and the contrast of atomic resonance line width of the alkali metal is improved.

In separation of sheet glass by making use of thermal strain, separated surfaces can be obtained to avoid the occurrence of glass chips and to have excellent linearity even in relatively thick sheet glass. After a score, which serves as a crack initiation point is engraved at a separation initiation point in sheet glass, the sheet glass is heated along an imaginary line of by a heating burner; the heated portion of the sheet glass with the imaginary line of separation set therein is locally cooled by a mist, which is produced by a cooling nozzle comprising a liquid-ejecting port disposed at a central portion thereof and a gas-ejecting port disposed around an outer periphery of the liquid-ejecting port, the liquid-ejecting port projecting farther than the gas-ejecting port; and a minute crack of the score is caused to propagate along the imaginary line of separation to form a crack required for separation of the sheet glass.

The invention discloses amphiphobic fluoro-containing crosslinkable block copolymer and a preparation method and application thereof. The block copolymer can be used for preparing a super-amphiphobic coating on the surface of glass or printing paper, and the super-amphiphobic coating is prepared by the following steps of: (1) putting silica nano spheres into benzotrifluoride to obtain solution ofsilica nano spheres; (2) adding solution of amphiphobic fluoro-containing crosslinkable block copolymer, tetrahydrofuran, hydochloric acid solution and water into the solution of silica nano spheres,and reacting for 7 to 12 hours to obtain a crude product of modified silica nano spheres; (3) washing the crude product of modified silica nano spheres to obtain modified silica nano spheres; and (4)dispersing the modified silica nano spheres into the benzotrifluoride to obtain solution, dripping the solution onto a glass sheet, and after the solvent is volatilized, forming the super-amphiphobiccoating on the surface of the glass sheet, or soaking the printing paper in the solution, taking the paper out, and drying the paper to obtain the super-amphiphobic coating on the surface of the paper. The amphiphobic fluoro-containing crosslinkable block copolymer can endow a material with good superhydrophobic and oleophobic properties; and the coating has high stability and hardly falls off and denatures.

An apparatus and associated method for measuring transmitted optical distortion in a glass sheet includes a glass stand which receives a glass sheet for mounting between a background screen which includes a matrix of spaced apart dots, and a digital camera which captures (1) an image of the glass sheet surface, and (2) an image of the dot matrix transmitted through the glass sheet. The captured images are downloaded to a computer that is suitably programmed to analyze the image data to (1) determine the presence of any markings or elements on the surface of the glass sheet that should be isolated from the dot matrix image, (2) modify the background image to eliminate the image data corresponding to any such surface markings or elements from the image, and (3) determine characteristics indicative of optical distortion in the modified image of the dot matrix background transmitted through the glass sheet.

The invention discloses a three-dimensional high-flux drug screening PDMS-glass chip and the preparation method thereof, which makes uses of micro-electro processing and micro-plastic film technologies to produce the three-dimensional PDMS-glass chip with a two-layer micro-channel structure. A cell injection and waste liquid output channel of a first layer of PDMS chip is bonded with another layer of polydimethyl siloxane chip together, a drug concentration gradient channel and a quantitative cell culture chamber are arranged on the other layer of PDMS chip, the quantitative cell culture chamber is connected with an outlet channel of the drug concentration gradient channel, the quantitative cell culture chamber is respectively connected with a cell sample injection hole drilling position and a waste liquid outlet hole drilling position by the channel; the three-dimensional high-throughput drug screening PDMS-glass chip can overcome the shortcomings of heavy workload, great reagent and drug consumption, long screening period and high development cost of the traditional drug screening technology. The three-dimensional high-flux drug screening PDMS-glass chip can realize miniaturization of the chip, high flux, low cost, small reagent consumption, accurate and reliable test data and the simple design requirements of the operational process in the drug screening application on cell level.

The invention discloses a manufacturing method of a subminiature MEMS gyroscope sensor, which comprises the following steps: providing MEMS wafer, depositing silicon dioxide through a CVD process, and then depositing silicon nitride through the CVD process; etching the patterns of silicon dioxide and silicon nitride on the front surface of the wafer, etching the wafer through using a RIE process, and forming a spring area and a metal landfill area in an MEMS structure; sputtering a metal layer on the front surface of the wafer to be as a seed layer, exposing the landfill area after photoetching, filling metal the density of which is more than that of silicon at the metal landfill area; removing photosensitive resist on the front surface of the MEMS wafer, removing the seed layer of the rest positions of the surface of the wafer; preparing sheet glass two sides of which are polished, corroding a groove on the glass by using a dry method to form a gap between a mass block and a glass cavity on the wafer; and sputtering metal on the back of the wafer, forming electrode after photoetching, and finally removing the photosensitive resist. The invention reduces the dimension of the mass block or increases the mass of the mass block.

The invention provides a circulating tumor stem cell detection kit based on magnetic beads and a microfluidic chip. The circulating tumor stem cell detection kit is characterized by comprising a microfluidic chip, at least one immunomagnetic bead, and at least one fluorescent antibody against a tumor stem cell biomarker, wherein the immunomagnetic bead can be specifically bonded with the circulating tumor stem cell and marked with the tumor stem cell biomarker; the microfluidic chip comprises a glass chip base; a microfluidic channel is arranged on the glass chip base; a soft magnetic micro-array is arranged inside the microfluidic channel. By adopting the circulating tumor stem cell detection kit, a plurality of different categories of rare circulating tumor stem cells can be captured and detected by sampling once, and the circulating tumor stem cell detection kit has high sensitivity and specificity, is convenient and fast to operate, can easily collect captured cells, and does not need complicated surface modification processes of a first antibody and a second antibody of the microfluidic channel inside the chip.

The invention relates to a preparation method of a flexible tensile strain type sensor and belongs to the technical field of sensor preparation. The preparation method concretely comprises four steps including flexible receiving set substrate preparation, electrostatic spinning solution preparation and filling into spinning needle tubes, distortion structure micro-nanometer fiber preparation by a electrostatic spinning method and sensor performance test: an elastic macromolecule material substrate is fixedly arranged on a glass sheet, and then, the glass sheet is placed on an aluminum foil of a power supply negative electrode; PVP (polyvinylpyrrolidone) ethanol solution of PEDOT/PSS (poly-3,4-ethylenedioxythiophene/ polystyrolsulfon acid) blended with DMSO (dimethyl sulfoxide) is prepared as spinning solution and is filled into spinning needle tubes; distortion structure micro-nanometer fibers are prepared by selecting a spinning spraying head reciprocating linear motion type electrostatic spinning device; and the prepared sensor is subjected to performance test. The preparation method is simple, the principle is reliable, the preparation cost is low, the product performance is good, the operation is simple and convenient, the yield is high, and the environment is friendly.

The invention discloses a glass chip packaging method. A penetrating conductive metal electrode is prefabricated in the thickness direction of a glass sheet, and laser welding packaging is carried out on a glass chip by adopting ultrafast laser light. By using an ultra-high light intensity characteristic of ultra-short pulse laser light, a nonlinear absorption effect is generated in a transparent medium and the transparent medium is melted on a focus point, so that selective micro-welding in a transparent material space is achieved. The structure size processed by the ultra-short pulse laser light can break through an optical diffraction limit and precise welding smaller than a laser wavelength is achieved. Furthermore, the interaction time of the laser light and a material is extremely short, cracks and sputtered materials, caused by different expansion coefficients, of the material can be effectively avoided; and improvement of the welding packaging precision and quality is facilitated. Compared with other packaging technologies of bonding and the like, the glass chip packaging method has the advantages that the manufacturing process is simple, the thickness of the chip is not limited, fillers of different materials do not need to be added, the strength performance, the stability and the reliability of glass chip packaging can be improved and the service life of the glass chip is prolonged.

The invention discloses a titanium dioxide photo-catalytic micro-reactor, characterized in that in the reactor, the lower ends of fibers are supported on a porous glass sand separator through a porous glass sheet, the upper end is fixed with a translucent sheet, the bottom of the reactor is provided with an air inlet pipe, and the side of the reactor is provided with a testing port and an injection port. According to the invention, the ratio of effective catalytic surface area to reactive volume is raised, the incident mode of a light source is changed into an internal reflection mode from a traditional external reflection mode, thus the attenuation after the light passes through the solution is reduced, and the utilization rate of the light is raised; compared with TiO2 nano-particles, the TiO2 nanotubes used as the photoreaction catalyst have higher catalysis catalysis effect; and compared with traditional coating modes, the reaction layer obtained by the catalyst layer of the photoreaction unit is more uniform, compact and firm.

A method of making terrazzo floors with design inlays. The method utilizes pre-molded inserts as inlays in the finished floor, and generally includes four steps. First, inserts are pre-molded, which has design elements in terms of their color, nature of inclusions (chips, glass fragments, etc. and their colors), shape and/or a pattern of grooves in their upper surfaces. Second, the pre-molded inserts are placed on and affixed to the sub-flooring in a predetermined arrangement. Third, epoxy flooring mixture is poured to a height that fills the grooves in the inserts' upper surfaces and preferably cover the inserts. Fourth, the floor, after cured and hardened, is ground and polished to expose the upper surfaces of the inserts, which now become seamlessly integrated inlays within the overall finished floor. The designs in the inlays are viewable because the inserts contain different visual ingredients (pigments, colored plastic or glass chips, etc) in contrast with the overall floor and they are outlined by the filled grooves.

The invention relates to an adhesive tape encapsulating structure of an organic light emitting diode (OLED). According to the adhesive tape encapsulating structure of the OLED, adhesive tape encapsulation is carried out on the OLED formed by a front electrode, an organic layer, a back electrode and a protection layer, the front electrode, the organic layer and the back electrode are arranged on the upper face of a substrate, the OLED is sealed through adhesive tape which is arranged on the upper face of the OLED and formed by an adhesive sticker and a flexible film strip capable of preventing water vapor and oxygen from passing through, an air barrier layer formed by multilayer films of multilayer thin films made of different materials is further arranged on the upper face or the lower face of the flexible film strip, a layer of filter film can be further arranged on the lower face of the flexible film strip, a sealing rubber ring is arranged on the periphery of the sealing adhesive tape to cover the adhesive tape and the substrate so that air cannot permeate into the OLED from the periphery, and a thin glass sheet or a thin metal sheet can be further arranged on the upper face of the sealing rubber ring to prevent air from entering from the upper face. According to the adhesive tape encapsulating structure of the OLED, due to the fact that the main encapsulating process is the adhesive tape adhering process, the technological process of the adhesive tape encapsulating structure is much simpler relative to a previous method, the production speed can be improved, production cost is lowered, and the adhesive tape encapsulating structure is especially suitable for large-area and large-batch production.

An ultraviolet flame sensor and a manufacturing method thereof relate to a solar blind type ultraviolet flame sensor. The invention provides the ultraviolet flame sensor with simple structure, small size, high stability, high strength and high linearity and sensitivity, and the sensor manufacturing method with good versatility, simple technique and low cost. The invention is characterized in that: the ultraviolet flame sensor comprises a uviol piece, a meshed anode which is arranged on the uviol piece, a cathode substrate glass piece, a photocathode which is arranged on the cathode substrate glass piece, a glass ring which is arranged between the cathode and the anode, a vacuum orifice which is arranged on the glass ring, a plastic packaged base which is arranged under the cathode substrate glass piece, a cathode and an anode lead which are adhered to the plastic packaged base and are respectively connected with the cathode and the anode, and a plastic casing which is arranged around the plastic packaged base, the glass ring and the glass piece.

The invention relates to a micro-fluidic apparatus integrated with a polydimethyl siloxane (PDMS) film, which is structurally characterized in that a flat glass sheet is pasted with a PDMS sheet, the pasting face of the PDMS sheet and the glass is provided with a groove to form a micro-fluidic pipeline, the surface of the PDMS sheet on the upper part of the central position of the micro-fluidic pipeline is a concave spherical surface, the thickness of the PDMS sheet between the lowest point of the concave spherical surface and the micro-fluidic pipeline is less than or equal to 10 microns, the PDMS sheet at two ends of the micro-fluidic pipeline is respectively provided with pores, and the pores are communicated with the micro-fluidic pipeline so as to form a fluid storage tank. The micro-fluidic apparatus can be applied to experiments such as film evaporation and crystallization or biological molecule concentration and the like in a micro-fluidic system. Special equipment is not needed to manufacture the micro-fluidic apparatus, the manufacturing step is simple, the cost is low, and the micro-fluidic apparatus is easily popularized and used in common laboratories. The invention also discloses a method for manufacturing the micro-fluidic apparatus.

The invention provides an integrated normal-closed PDMS micro-valve, comprising an upper glass sheet 1, a lower glass sheet 3 and a PDMS film 2 that is arranged between the two glass sheets; wherein the upper glass sheet 1 contains a sample cell only; the lower glass sheet 3 contains an air path control hole only; and a fluid passage and an air path control passage are formed on two surfaces of the PDMS film 2 respectively. In the normal-closed valve, the fluid passage and the air path control passage are not etched on the upper glass sheet and the lower glass sheet, but formed on two surfaces of the middle PDMS film respectively; furthermore, two glass sheets only contain the sample cell and the air path control hole respectively; wherein the PDMS film can be repeatedly prepared by the same template, and the glass sheets only need to be drilled simply, thus reducing the template preparation steps of complex and high cost during the preparation process of the chip, thereby being more suitable for preparing the micro-fluidic chip of the integrated PDMS micro-valve/micro-pump.

On a conventional T-shaped glass chip, a permanent magnet is utilized to fix and decorate a nanometer magnetic bead of a DNA probe in a separation channel of a chip; the rapid, sensitive, high-specific, high-stability, low-cost separation detection on the DNA is realized by utilizing electric drive sampling and combining a laser induced fluorescence detector or an electrochemical detector, thus solving the defects that the time of separating and detecting the DNA by utilizing a microfluidic chip is long, the separation effect is poor, the sensitivity is low, the specific is poor and the stability is poor and the like; the interface manufacturing is avoided by an electric sampling manner; the influence of dead volume is removed; and the sample use amount is reduced in a narrower and uniform micro pipeline, and meanwhile the lower detection limit is ensured.

The invention discloses a glass chip for cultivating a single cell array based on microfluidic patterning technology, and a preparation method thereof, and belongs to the field of biological micro electro mechanical systems. The glass chip adopts the structure that a layer of PHEMA hydrogel pattern 2 is arranged on a glass base 4, and divides the glass base 4 into a plurality of rectangular cell growth zones 1 to generate the single cell array. The preparation process is that graphical PHEMA processing is performed on the surface of a glass sheet through a PDMS elastic stamp. The glass chip has the benefits that the stable surface chemical modification is adopted, so that hydrogel dressings capable of resisting cell adhesion is arranged on the surface of the glass in a graphical manner to form the cell graphical surface containing cell adhesion and resisting cell adhesion so as to cultivate the single cell array; the preparation process is simple and easy to operate; when the chip is applied to cell culture, the single cell growth array is obtained, and a new tool for studying basic cell biology is provided.