55 results about "Chemical basis" patented technology

A fluidic device holder configured to orient a fluidic device. The device holder includes a support structure configured to receive a fluidic device. The support structure includes a base surface that faces in a direction along the Z-axis and is configured to have the fluidic device positioned thereon. The device holder also includes a plurality of reference surfaces facing in respective directions along an XY-plane. The device holder also includes an alignment assembly having an actuator and a movable locator arm that is operatively coupled to the actuator. The locator arm has an engagement end. The actuator moves the locator arm between retracted and biased positions to move the engagement end away from and toward the reference surfaces. The locator arm is configured to hold the fluidic device against the reference surfaces when the locator arm is in the biased position.

Biosensor including a device base having a sensor array of light sensors and a guide array of light guides. The light guides have input regions that are configured to receive excitation light and light emissions generated by biological or chemical substances. The light guides extend into the device base toward corresponding light sensors and have a filter material. The device base includes device circuitry electrically coupled to the light sensors and configured to transmit data signals. The biosensor also includes a shield layer having apertures that are positioned relative to the input regions of corresponding light guides such that the light emissions propagate through the apertures into the corresponding input regions. The shield layer extends between adjacent apertures and is configured to block the excitation light and the light emissions incident on the shield layer between the adjacent apertures.

A method and device for performing lysing on a cell-containing fluid, in which the fluid flows through a vibrating micromachined tube to physically rupture the cell walls (mechanical lysis), and / or to mix, agitate or homogenize the fluid during chemical lysis, and / or to mix, agitate or homogenize the lysate for analysis or other processing after lysing. The tube includes a freestanding portion spaced apart from a surface of a substrate on which the tube is formed. The device further includes means for vibrating the freestanding portion of the tube at a level sufficient to rupture the walls of cells in a fluid flowing through the freestanding portion (for mechanical lysing) or to mix the fluid and a chemical lysing additive within the freestanding portion (for chemical lysing).

The present invention relates to devices and chips comprising large scale chemical field effect transistor arrays including an array of sample retention regions capable of retaining a chemical or biological sample from a sample fluid for analysis. In one aspect, such an array of transistors has a pitch of 10 μm or less, and each sample retention region is located on at least one chemical field effect transistor arranged to generate at least one output signal, which signal is consistent with such related to the characteristics of the chemical or biological sample in the sample retention area. In one embodiment, said chemical or biological sample is characterized by the concentration of charged species, and wherein each of said chemical field effect transistors is an ion-sensitive field effect transistor having a floating The dielectric layer is in contact with the sample fluid and is capable of accumulating charge in proportion to the concentration of charged species in the sample fluid. In one embodiment, such charged species are hydrogen ions, whereby the sensor measures the change in pH of the sample fluid in or near its sample retention zone. The devices and chips of the present invention may be suitable for large-scale pH-based DNA sequencing and other bioscience and biomedical applications.

Biosensor including a device base having a sensor array of light sensors and a guide array of light guides. The light guides have input regions that are configured to receive excitation light and light emissions generated by biological or chemical substances. The light guides extend into the device base toward corresponding light sensors and have a filter material. The device base includes device circuitry electrically coupled to the light sensors and configured to transmit data signals. The biosensor also includes a shield layer having apertures that are positioned relative to the input regions of corresponding light guides such that the light emissions propagate through the apertures into the corresponding input regions. The shield layer extends between adjacent apertures and is configured to block the excitation light and the light emissions incident on the shield layer between the adjacent apertures.

A flow cell including inlet and outlet ports in fluid communication with each other through a flow channel that extends therebetween. The flow channel includes a diffuser region and a field region that is located downstream from the diffuser region. The field region of the flow channel directs fluid along reaction sites where desired reactions occur. The fluid flows through the diffuser region in a first flow direction and through the field region in a second flow direction. The first and second flow directions being substantially perpendicular.

Biosensor cartridge includes a flow cell having inlet and outlet ports and a flow channel that extends therebetween. The flow cell includes a substrate field having a plurality of reaction chambers. The reaction chambers have apertures that open onto the flow channel. The biosensor cartridge also includes an activity detector that is coupled to the flow cell and has an array of pixels that has a fixed position relative to the substrate field of the flow cell. The pixels are assigned to select reaction chambers such that activity detected by the pixels indicates that a desired reaction has occurred within the select reaction chamber. The biosensor cartridge also includes an exterior side surface having a plurality of electrical contacts thereon that are communicatively coupled to the pixels. The electrical contacts of the side surface are configured to engage corresponding mating contacts of a bioassay system.

The invention relates to a squarylium type chemical sensor for colorimetric identification of a copper ion and a preparation method thereof, belonging to the field of chemical analysis and testing. The squarylium type chemical sensor is provided with a symmetric 2, 3, 3-trimethyl-indole squarylium compound and is prepared by the following steps of: mixing a 2, 3, 3-trimethyl-indole ring compound and squaric acid with a molar ratio of 2:1, adding mixture into a three-necked flask, adding mixed solvent of toluene and n-butanol with a volume ratio of 1:1, performing heating, mixing and back-flowing for 2-24 hours, and separating water produced in reaction with a water separator; stopping heating, cooling to the room temperature, depressurizing and evaporating to remove part of the solvent, and filtering to obtain green solid; and repeatedly washing the obtained green solid with ethyl acetate, drying at 60 DEG C, and recrystallizing with ethanol solvent to obtain pure green crystals. When the squarylium compound is applied in identification of the copper ions, the color can change in addition to changes in the absorption spectrum, the characteristics are obvious, and detection of the copper ions can be facilitated.

There are provided a method for chemical analysis and an apparatus for chemical analysis. The method for chemical analysis includes: dosing a targeted sample with ionizing gas; irradiating ion beams on the targeted sample; and analyzing the mass of fragment ions and molecular ions sputtered from the targeted sample by the collisional impact of the ion beams . The apparatus for chemical analysis includes: an ionizing gas doser that adds ionizing gas onto a targeted sample disposed in a vacuum chamber; an ion beam source that generates ion beams and irradiates them onto the targeted sample; and a mass spectrometer that analyzes the mass of fragment ions and molecular ions sputtered from the targeted sample by the collisional impact of the ion beams.

A method of performing chemical analysis is disclosed. The method includes the steps of forming carbide-derived carbon (CDC) material having a plurality of pore size, surface chemistry, and surface electrical properties. An array of the surface functionalized CDCs are used for atmospheric sampling, in which chemicals in the atmosphere are adsorbed on the CDCs. The adsorbed samples are desorbed later for analysis by a plurality of individual mass spectrometers.

One embodiment provides a method for identifying a target object of a pipe wall, including: positioning a pipe inspection robot within a pipe; emitting, using a terahertz (THz) beam source of the pipe inspection robot, a laser beam towards a target object; receiving, using a THz receiver of the pipe inspection robot, THz data related to the target object; analyzing, using a processor, the THz data; and determining, based on the analyzing, an identity of the object. Other aspects are described and claimed.

A flow cell including inlet and outlet ports in fluid communication with each other through a flow channel that extends therebetween. The flow channel includes a diffuser region and a field region that is located downstream from the diffuser region. The field region of the flow channel directs fluid along reaction sites where desired reactions occur. The fluid flows through the diffuser region in a first flow direction and through the field region in a second flow direction. The first and second flow directions being substantially perpendicular.

An analyzer and a structure for analysis with high performance are provided which can reduce contamination between the reagents when the valve components or a plurality of reagents are included. The present invention is a chemical analyzer to which a sample is introduced and into which a structure for holding a reagent reacting with the above described sample is housed, including a mechanism for detecting the above described sample after the above described reaction; in which the above described structure includes a reagent cartridge having reagent storing parts for storing a plurality of reagents, a connection part to which the above described reagent cartridge is connected, and a channel cartridge having reagent channels through which a plurality of the above described reagents flow, a sample channel through which the above described testing object flows, and a reaction region where the above described reagent is reacted with the above described testing object.

A chemical vapour deposition process to make the diamond film on the tool bit of the complex shape use the spiral heater structure based on the heater CVD plated diamond film. It put the tool bit into the inner of the spiral heater structure, the tool bit rotaries by the axis, so the distance between the parts of the tool bit and the heater and the concentration of the carbon source is uniform. It can assure the uniformity of the coating and the film of the substrate.

The invention provides a fluorescence chemical sensor for detecting 2,4,6-trinitrophenol and a preparation method of the fluorescence chemical reactor, belonging to the technical field of preparation and chemical analysis of functional high polymer materials. The fluorescence chemical sensor has a chemical structure shown in the specification. The preparation method of the fluorescence chemical sensor comprises the following steps: (1), in the presence of an acid-binding agent, performing condensation polymerization in an organic solvent by using phosphonitrilic chloride trimerl and curcumin to obtain a solution; (2), separating a solid product in the solution, washing and drying to obtain the fluorescence chemical sensor. The fluorescence chemical sensor based on ring-crosslinking type polyphosphazene, disclosed by the invention, is simple and mild in preparation process, has excellent thermal stability, chemical stability and fluorescence characteristics, can be used for realizing specific identification and detection of 2,4,6-trinitrophenol in a liquid phase, is high in sensibility, is suitable for the fields of trace explosive detection and environment monitoring, and is favorable for realizing industrial production.

The invention relates to a chemical vapor deposition device and a method, and in particular relates to the chemical vapor deposition device which can measure and control the weight gain rate and the weight gain speed rate of porous carbon prefabricated parts in time and the method. The device and the method are suitable for checking the weight gain rate and the weight gain speed rate of carbon / carbon composite material or carbon / silicon carbide composite material in the chemical vapor deposition process and can control the deposition and permeation process. The device and the method are characterized in that the device comprises a system which is composed of a set of chemical vapor deposition furnaces, a set of electronic weighing bridges and a set of industrial computers. The device and the method have the advantages that: firstly, the weight gain rate and the weight gain speed rate can be measured in time, secondly, the device can automatically recognize whether deposition is finished or not, thirdly, the time is saved and the efficiency is increased, fourthly, the process parametersof the chemical vapor deposition can be optimized, fifthly, chemical reaction characteristics which are happened in the deposition process can be automatically recognized and judged according to changes of the sedimentation rate, and procedures of water supply, gas supply, power supply, temperature raising and lowering and the like are correspondingly regulated to reach intelligent control.

The invention belongs to an environmental-protecting chemical gas-phase permeating technical method with stable running and a device thereof, in particular relates to a method and a technical device thereof using the residual space or the additional high-temperature space of a CVI furnace for purifying tail gas and obtaining the side product of carbon black. The invention aims to provide the environmental-protecting chemical gas-phase permeating technical method of stable running and the device thereof enabling the intermediate product in the tail gas to generate further thermal polycondensation to form nontoxic carbon black substance of easy trapping so as to overcome the defects that the tar oil and the carbon black substance in the tail gas easily block the pipeline and contaminate the vacuum equipment, and toxic substances pollute the environment, and producing the side product of high-quality carbon black.

The invention discloses a technological research for producing sodium acetate by comprehensively utilizing chemical waste liquid and belongs to the field of chemical engineering. In the technological research, chemical reaction is accelerated by using a microwave technique, solid-liquid separation is realized by using a distillation technique, sodium carbonate is added for reaction so as to turn acetic acid which is difficult to separate and has relatively low value into the sodium acetate which is easy to separate and has high added value, and chemical analysis is performed on the waste liquid to determine chemical components of the waste liquid and draw up a separation method; meanwhile, an optimal scheme is adopted to determine a method for adding reactants and accelerating the reaction rate; a resultant is separated and purified, and finally a qualified product is produced.

The invention relates to a full-automatic biological evaluation and chemical analysis integrated machine and method. The integrated machine comprises a pretreatment module used for enriching, concentrating and purifying a to-be-analyzed sample, a component separation module used for separating various compounds in a mother liquor to be analyzed, a monitoring and identifying module used for carrying out real-time monitoring and collecting of chromatographic signals and quantitative detection of suspicious compounds on effluent, a component collecting module used for collecting, decreaming, redissolving and transferring the effluent, a biological evaluation module used for finishing cell culture and detection of cytotoxicity effects and toxic targets, and a data processing and automatic control module used for collecting, sorting and analyzing comprehensive data. According to the integrated machine and method, efficient, stable and normalized standard operation conditions are provided for toxicity screening of compounds in a complex system; the reliability of experimental data is improved while the labor cost required by detection is reduced; and the method is a relatively high-practicality technical method for high-throughput screening work.

An inspection probe for directly measuring a transmission spectrum of a solvent oil in a transformer includes a tube having a plurality of apertures spaced along a side of the tube to allow oil to pass therethrough, and first and second optical collimators disposed at opposing ends of the tube. The first and second collimators are aligned by the tube such that incident light is transmitted through the first collimator, the tube, and the second collimator to a spectrometer

A driver of the pulse power supply for plasma aided chemical gas-phase deposition equipment is composed of 4 drive circuits, which are isolated from each other and corrected to the secondary windings of HF pulse transformer. It features that its circuit structure can ensure high anti-interference power, so having high reliability.

An apparatus and method for chemically analyzing a sample fluid are provided. The apparatus includes two fluid selection valves with multiple input ports for selectively receiving sample and reagent fluids. The selection valves are configured to selectively connect the input ports to output ports such that the sample and reagent fluids can be delivered through a fluid injection valve to a sample vessel and therefrom to an analysis device. The analysis device is configured to receive the sample and reagent fluids and determine at least one chemical characteristic of the sample fluid.

The present invention relates to a raw material for CVD comprising an organic iridium compound as a main component, said organic iridium compound being tris(2,4-octanedionato)iridium represented by Formula 1. Particularly preferably, the raw material for CVD consists only of the trans isomer of tris(2,4-octanedionato)iridium.

One embodiment provides a method for identifying a target object of a pipe wall, including: positioning a pipe inspection robot within a pipe; emitting, using a terahertz (THz) beam source of the pipe inspection robot, a laser beam towards a target object; receiving, using a THz receiver of the pipe inspection robot, THz data related to the target object; analyzing, using a processor, the THz data; and determining, based on the analyzing, an identity of the object. Other aspects are described and claimed.

In one aspect, the invention relates to an optical apparatus for producing light of a predetermined intensity from light sources of less than the predetermined intensity. In one embodiment the apparatus includes a first light source; a second light source; a double dove anti-Gaussian generator in optical communication with the first light source; and a compensator in optical communication with the second light source. Light from the first light source passes through the double dove anti-Gaussian generator and light from the second light source passes through the compensator, and are combined to produce a flattened Gaussian intensity distribution. In another aspect, the invention relates to a method and apparatus for separating an image into subunits and reading the separate subimages out of the detectors in parallel.