343 results about "Biological test" patented technology

An improvement is described to disposable devices for performing chemical or biological tests on a sample of fluid, and the method by which such devices perform tests. The power for the device comes from an electrochemical battery, where a portion of the fluid sample itself provides the electrolyte for the battery. Furthermore, the time of diffusion of the fluid into the battery provides the timing signal for activation of the system. Communication between the improved device and an information system is provided by a transponder system built into the device which requires no direct electrical connection. Rather, the device is placed in proximity with a reader which can interrogate the device, obtain the results of the test and if necessary provide power for the device to perform the test, and / or communicate the information. The improvements and methods are particularly applicable to devices for performing in vitro diagnostic tests on a sample of body fluid.

A diagnostic microbiological testing system and method for microorganism identification (ID) and antimicrobial susceptibility determinations (AST). The system includes multiple-well test panels capable of performing ID and AST testing on the same test panel. Each test panel is inoculated with reagents, broth-suspended organisms, and placed into the instrument system. The instrument system includes a rotating carousel for incubation and indexing, multiple light sources each emitting different wavelength light, precision calorimetric and fluorometric detection, barcode test panel tracking and a control processor for making determinations based on measured test data. One light source includes a plurality of LEDs arranged in a linear array. Each of the LEDs' junction currents are controllable to produce a predetermined illumination profile.

A system and method for networked ordering biological tests is provided including communicating biological test sample information and test information over the Internet.

A method and apparatus for minimizing diagnostic errors due to transposition of biological specimens among subjects provides for independent biometric confirmation that a given specimen is from a given donor. In certain embodiments, a biological specimen confirmation kit comprises a portable and openable case housing components of the kit, at least one biological specimen container adapted to receive a biological testing specimen from a donor, and at least one reference sample device adapted to receive a biological reference specimen from the same donor, such that the testing and reference specimens can later be compared for donor match verification by a reference verification entity.

We have discovered a protein in humans, herein referred to as thymosin R16 (SEQ ID NO: 1), that is expressed in human prostate cancer tumors but not in specimens of benign prostate hyperplasma (BPH) tissues. In contrast, prostate specific antigen (PSA), the gold standard of prostate cancer diagnosis, is highly expressed in BPH tissues. Increased expression of thymosin (316 has a high correlation to disease state in a number of cancers including prostate cancer and cancers of epithelial origin. Accordingly, method of diagnosing and prognosing cancer in a patient by measuring the level of thymosin (316 in a biological test sample obtained from the patient are provided.

The invention discloses a water quality safety online biological early warning and monitoring system based on video identification. The water quality safety online biological early warning and monitoring system comprises a monitoring vessel, an image collection module, an image data pretreatment module, a background extraction and target detection module, a motion tracing module, a control module and a GSM (Global System for Mobile Communication) remote early warning module. With the adoption of the water quality safety online biological early warning and monitoring system, raw water and fish fry to be detected are introduced into the monitoring vessel, images of the fish fry are collected by the image collection module in real time and are sequentially transferred to the image data pretreatment module, the background extraction and target detection module and the motion tracing module to obtain a motion track of the fish fry; motion parameters are obtained by the control module according to the motion track of the fish fry, an increasing amplitude is obtained by comparing the motion parameters with normal values, and warning is carried out when the increasing amplitude exceeds an increasing amplitude set by a user. According to the water quality safety online biological early warning and monitoring system disclosed by the invention, a water pollution biological testing method is adopted to detect the raw water, i.e. the water quality pollution conditions are tested by utilizing the variation of physiological functions of aquatic organisms due to poisoning by pollutants.

A system is disclosed in which human genomes are stored in databases or in a cloud based computer system, which is secure and private and then downloaded to personal devices for possible peer-to-peer interactions for health care applications, as well as for social and other applications. The use of the system is directed to fully sequenced genomes and includes protocols that are constructed to mimic in vitro biological tests to conduct genomic analysis instead of generic computational techniques, which tend to be impractical as they require performance of online computation over the entire genome. Three specific examples of protocols or techniques for privacy-preserving testing on fully sequenced genomes included are: 1) privacy-preserving genetic paternity testing, 2) privacy-preserving personalized medicine testing, and 3) privacy-preserving genetic compatibility testing.

The invention relates to a real-time automatic non-injury iris optical imaging device which provides an optical imaging device with iris biological test purpose. It can real-time images iris grain image. It comprises a sealed casing. Near infrared band optical filter, optical imaging lens array, video camera and light source for lighting system are grading arranged on the optical axis of the casing; the invention also has image handling control unit which can do real-time closed-loop feedback control to the optical imaging device.

The present invention provides an indicator device, and a biological test method, for determining-the toxic fingerprint and degree of toxicity, comprising at least 3, preferably at least 11, different microorganisms freeze-dried on an inert support material, wherein the microorganisms are being selected to form a high diversity of microorganisms, on said support material, with regards to the taxonomical tree and high diversity regarding responses to toxic chemicals. Further, a kit and a process for producing the indicator device is also disclosed.

The invention provides a method for trapping, preventing and controlling adults of ectropis obliqua by combining mint pheromone and colors. The method comprises the following steps of: authenticating 18 main components in mint odor qualitatively and quantitatively; performing biological test by using a wind tunnel instrument to screen out 3 components of menthol, menthone and linalool with highest trap effect to prepare an taste source substance at the concentration of between 10<-6> and 10<-1>g / ml; preparing the taste source substance into a trapping agent in a ratio of 1:0.1-15:0.1-15 and carrying the trapping agent on a trapping core; in the main eclosion period of the adults of the ectropis obliqua, screening khaki with highest trap effect out from 10 colors; and combining the trapping core with a khaki adhering plate to form a trapper to trap the adults of the ectropis obliqua in the main eclosion period of the adults of the ectropis obliqua so as to reduce the amount of eggs of the next generation and reduce chemical prevention and control. The method has the advantages of no pollution, accordance with a green preventing and controlling principle for insects and the requirement of construction of a standard ecological tea garden, convenient operation and low cost.

The invention relates to a biological test device for fish behaviors. The development of fish culture in lakes and reservoirs in the prior art faces two difficulties: 1, the throw of a large amount of feed can cause eutrophication of water resources and destroy natural water environment; and 2, since water in most of lakes and reservoirs is too deep, cultured fish individuals are difficult to catch when growing up, and since habits of fishes living in different water layers can not be distinguished as a result of the fact that a fishing net of the traditional fishing system in the prior art is simply a single-layer net, the traditional fish aquatic culture system can not be used for testing life behaviors of fishes. The biological test device for fish behaviors comprises a fish aquatic culture system (1), wherein the fish aquatic culture system (1) contains a fish perching behavior-based fishing system (6), a fish tank (13) and a frequency-adjustable sound generator (11), and the outside of the fish aquatic culture system (1) is provided with a video monitoring system (10) and an oxygenator. The invention is used for testing habits of fishes.

The invention discloses biological test tube cleaning, disinfecting and drying equipment. The biological test tube cleaning, disinfecting and drying equipment comprises a box. The box is provided witha cleaning cavity and a water cavity. An activated carbon plate and a filter plate are fixedly mounted in the water cavity. The activated carbon plate is located under the filter plate. A water pumpis fixedly mounted on one side of the box. The suction end of the water pump is fixedly connected with a water suction pipe. The end, far away from the water pump, of the water suction pipe extends into the water cavity and is located below the activated carbon plate. The discharge end of the water pump is fixedly connected with a drain pipe. The end, far away from the water pump, of the drain pipe extends into the cleaning cavity. A partition plate is fixedly mounted in the cleaning cavity. The biological test tube cleaning, disinfecting and drying equipment is reasonable in design, good in practicality, capable of realizing integration operation of cleaning, drying and disinfecting of test tubes without manual cleaning and capable of saving time and labor, improves the working efficiency, has the good cleaning, drying and disinfecting effects on the test tubes and can filter and purify waste water obtained after cleaning for recycling and save water resources.

The invention discloses an anthropomorphic dummy anti-explosion evaluation device provided with sensors. The device comprises an anthropomorphic dummy; the body of the anthropomorphic dummy is provided with police protection equipment; the sensors are respectively arranged at the head, the ears, the neck, the knees, the waist and the feet of the anthropomorphic dummy; the sensors are connected with a data acquisition module through data lines; after being processed through a data processing module, data acquired by the data acquisition module is transmitted to a data evaluation module; the exterior of the anthropomorphic dummy is provided with free field testing jigs; the free field testing jigs are respectively provided with a free field pressure sensor; the exterior of the anthropomorphic dummy is also provided with cameras; the cameras are connected with the data evaluation module through an image processing module. According to the device, the anthropomorphic dummy can be applied to the field of the efficiency evaluation of the police protection equipment, thus, quantization is given on the protection efficiency of the protection equipment, and research can be carried out on the damage and the protection to a human body from the angle of the mechanics index of the anthropomorphic dummy; the defects of a biological test are remedied, and the credibility of data approaching to the data of a real person is improved.

A system and method to test for the presence of target molecules in a biological test sample includes test molecules, a microfluidic chip, and irradiating and detection devices. The test molecules include bio-recognition molecules conjugable with the target molecules, and the corresponding conjugates. The microfluidic chip includes sample channels and flow focusing channels adjoining the sample channels. A buffer exiting from the focusing channels directs a single-file stream of the test molecules through one of the sample channels. The irradiating device delivers radiation for absorption by the test molecules in the single-file stream. After absorption, the test molecules emit fluorescence of a distinct fluorescent spectrum for each of the conjugates. The detection device monitors identifies the presence of the conjugates by monitoring for the distinct fluorescent spectrum. Thus, the test system and method identifies the presence of the target molecules in the test sample.

The invention discloses a paper-based nucleic acid extraction, amplification and detection integrated detection system and a paper-based nucleic acid extraction, amplification and detection integrated detection method and belongs to the technical field of biological test paper detection. According to the detection method, integrated operation of nucleic acid extraction, amplification and detection of any food, environment, clinic samples and the like is achieved, and particularly, paper-based nucleic acid extraction, LAMP (loop-mediated isothermal amplification) and test paper detection are achieved. The invention further provides a small-sized handheld detection device capable of achieving nucleic acid amplification temperature. Detection results can be observed easily by naked eyes, and quantifying is achieved by mobile phone software. Total amplification and detection time is about one hour. Compared with other existing methods, the detection method has the advantages that nucleic acid extraction, amplification and detection can be simplified, operation steps are decreased and rapid efficient onsite detection is achieved.

The invention provides a biological test bed convenient to clean and relates to the technical field of biological test beds. The biological test bed convenient to clean comprises a base test bed, wherein a cleaning frame is fixedly mounted at the top of the base test bed, a case is fixedly mounted on the left side of the cleaning frame, a motor is fixedly mounted in the case, and an output end ofthe motor is movably connected with a screw rod. According to the biological test bed convenient to clean, through the cleaning frame, the motor, the screw rod, a threaded ring, sliding rods, pulleys,an electric telescopic rod, a mounting plate, a clearing brush, a spray plate, a cleaning liquid box, a water pump, a liquid inlet pipe and a liquid outlet pipe, the motor is started and can drive the threaded ring to move leftwards and rightwards through the screw rod, meanwhile, the threaded ring can drive the clearing brush and the spray plate at the bottom of the threaded ring to move leftwards and rightwards, meanwhile, the electric telescopic rod can drive the clearing brush and the spray plate to move up and down, a cleaning liquid in the cleaning liquid box can be sprayed out from thespray plate under the suction action of the water pump, in general, synchronous brushing washing and spray cleaning are realized, and the cleaning effect is better.

This invention belongs to biological test technique field, which is in detail is the process method of the polymethyl methacryate microflow control core with body modification. The method is the following: first to mix the methyl methacrylate with the modification agent; to join thermal initiation agent and light initiation agent into the mixture liquid; to pre-focus the single liquid by heating in the water; to inject the pre-focus liquid into the chip model; to get the micro-flow control chip base by ultraviolet light shining and body initiation; then to cover and seal the micro-flow control chip.

The invention relates to a body fluid cancer marker detection device for a human body. The problems that the conventional detection device is high in manufacturing cost, extremely large in size, complicated in detection, inaccurate in detection result and the like are solved. The body fluid cancer marker detection device comprises magnetic elastic biological test paper, a micro controller, a coil bracket, an enhanced impedance converter, a power circuit, a direct current biasing circuit, a key and a liquid crystal screen, wherein a direct current biasing coil and an alternating current excitation coil are wound on the coil bracket; the magnetic elastic biological test paper is inserted into the coil bracket; a magnetostrictive material thin sheet is arranged on the magnetic elastic biological test paper; an antibody corresponding to a cancer marker to be detected is modified on the magnetostrictive material thin sheet. The magnetostrictive material in the body fluid cancer marker detection device is low in cost, high in sensitivity and high in detection precision; the number of the cancer markers in body fluid can be quickly and accurately detected, and the trouble and the error which are caused by repeated use can be avoided. Furthermore, the body fluid cancer marker detection device is small in size and convenient for portable detection; the noise interference is reduced, and the accuracy and the reliability of detection of the magnetic elastic biological test paper are improved.

The invention discloses a preparation method of quantum dot polymer microspheres, which comprises the following steps that: hydrophobic monomer, oil soluble quantum dot and oil soluble initiator are fully mixed to form uniformly scattered oil phase fluid; jet-flow suspension polymerization is adopted to break and scatter the oil phase fluid into oil drops with uniform sizes, and O / W type suspension liquid forming in the water phase is subjected to polymerization at the constant temperature to form quantum dot polymer microspheres with uniform sizes. The quantum dot polymer microspheres prepared by the method is uniform in grain sizes, controllable in the sizes of the microspheres, high in fluorescence efficiency and stable in chemical properties, thereby having potential application values in the field of biological tests and medical science.

A biosensor strip having an identification function includes a first insulating substrate and a second insulating substrate, and the first substrate is deposited on the second substrate, and the first substrate has an electrode and an identifying electrode area, and the electrode and identifying electrode area are exposed from the second substrate. The identifying electrode area is made by coating an electrically conductive material. Since different conductive materials have different impedances, the conductive material can be changed according to different testing applications or different sensing instruments. When the invention is used and the strip is inserted into a sensor, the impedance produced by the conductive material of the identifying electrode area or the impedance produced between the electrode and the identifying electrode area is used to determine whether or not the impedance of the sensor falls within the predetermined range; if no, then an error message will be produced to avoid any distortion of the test; if yes, then the biological test sample will be tested. As a result, it is not necessary to change the sensor, and manufacturers only need to change the factory default settings of the impedance. Unlike the prior art strip that requires changing the position and form of the identifying electrode to fit different applications or sensors of different specifications, the invention can save manufacturing cost and provide convenient uses.

The present invention relates to substrates for biological testing produced from photo-curable epoxy compositions which further include carboxyl-containing monomers such as acrylic acid, 2-carboxyethyl acrylic acid, 4-vinylbenzoic acid, or 3-Acrylamido-3-methyl-1-butanoic acid, or glycidyl methacrylate, etc. The photo-curable compositions may be used to cast films or fabricate beads, magnetic beads, or magnetic beads containing nickel barcodes. The resulting various kinds of films, beads, magnetic beads, or magnetic beads containing nickel barcodes may find use in clinical or biological applications.

A dual-slot biological test meter test procedure includes the steps of 1) inserting a code card into the first test slot of a dual-slot biological test meter to input predetermined parameters and then inserting a test strip into the second test slot to initiate the dual-slot biological test meter, 2) entering a first state to electrically connect the two electrodes of the inserted test it is over the threshold after application of blood sample to the reaction zone of the inserted test strip, and then entering a second stage to output a voltage to the electrodes of the inserted test strip for a predetermined length of time set by the code card; 3) entering a third stage to read the current value subject to the setting of the code card when the predetermined length of time is up, and then to calculate the test result through a computing method set by the code card subject to the current value obtained, and then to show the test result on a display.

The present invention relates to substrates for biological testing produced from photo-curable epoxy compositions which further include carboxyl-containing monomers such as acrylic acid, 2-carboxyethyl acrylic acid, 4-vinylbenzoic acid, or 3-Acrylamido-3-methyl-1-butanoic acid, or glycidyl methacrylate, etc. The photo-curable compositions may be used to cast films or fabricate beads, magnetic beads, or magnetic beads containing nickel barcodes. The resulting various kinds of films, beads, magnetic beads, or magnetic beads containing nickel barcodes may find use in clinical or biological applications.

The present invention relates to flusilazole micro emulsion and its preparation process. The flusilazole micro emulsion consists of flusilazole 5-20 wt%, surfactant 10-25 wt% and co-solvent 10-15 wt%, except water. Biological test shows that the flusilazole micro emulsion has the effect similar to that of corresponding oil emulsion.

The invention relates to compound herbicide for controlling paddy rice weed of Chinese sprangletop and barnyard grass. The compound herbicide can control the paddy rice weed of Chinese sprangletop and barnyard grass. The active ingredient of the invention is R (+) 2 [4 (2 fluoro 4 cyanophenoxy) phenoxy], butyl propionate and 3, 7-dichloroquinoline-8-carboxylic acid. The invention deeply examines interaction effect of barnyard grass and Chinese sprangletop, field control effect, complementarity of weed control spectrum, applicable formulation and so on. Indoor biological test and field control test show that cyhalofop butyl and quinclorac are scientifically portioned, and relevant auxiliary agent is added, and cyhalofop butyl quinclorac compound is made after being processed a certain technology. The control effect for the paddy field weed Chinese sprangletop and barnyard grass of the compound is obviously higher than single agent. The compound improves the control effect, enlarges the weed control spectrum, delays weed resistance, and reduces the using of pesticide. The invention not only lowers the agricultural cost, but also is much safer to crops.

The invention provides a method for extracting DNA (deoxyribonucleic acid) by alkaline cracking. The method comprises the following steps of: 1, putting testing material into NaOH (sodium hydroxide) solution of which the concentration is 0.05-0.6M; 2, carrying out incubation on solution, wherein the incubation temperature is 90-99 DEG C and the incubation time is 5-10 minutes; 3, oscillating the incubated solution in an oscillator to oscillate; 4, adding Tris-HCl (tris(hydroxymethyl)aminomethane hydrochloride) solution of which the concentration is 0.01-0.1M and the pH value is 5-8 and carrying out centrifugal oscillation, and 5, freezing and storing extract at the temperature of 20 DEG C. Compared with the prior art, the requirements of existing various conventional forensic biological test materials can be met by changing parameters such as the concentration, the pH value, the incubation time, the incubation temperature and the like of reagent, and automatic DNA extraction work can be carried out at the same time by the same equipment under the same experiment conditions.

The invention relates to a biological activity detection-based evaluation method of the quality of prepared radix rehmanniae, effectively solving the problems of evaluating the quality of the prepared radix rehmanniae from multiple angles and then ensuring the medicinal quality of the prepared radix rehmanniae. The evaluation method comprises the following process steps of: taking medicinal materials; pretreating the medicinal materials; preparing a tested substance; carrying out a free radical elimination reaction experiment; measuring free radical elimination rate; comparing the tested substance with a reference substance; calculating valence; carrying out methodology investigation; measuring the valence value of batched samples; and evaluating the quality. By means of the method, a medical effect-based biological test method of the quality of traditional Chinese medicines by taking the prepared radix rehmanniae as an object is established and is used as the supplement and the enhancement of the conventional and chemical measurement of a pharmacopeia, the inner quality can be checked on together from multiple angles, the traditional quality control and quality evaluation method and standard are perfected, and a new technical condition is provided for the quality control and the quality evaluation research of other traditional Chinese medicines with undefined medical effect substances.

The invention relates to a cigarette paper combustion product capturing method for biological detection, belonging to the technical field of biology. The method comprises the following steps: (1) shearing cigarette paper into fine small paper scraps with the size of 9.9-10.1cm*1-2mm, uniformly filling the fine small paper scraps into a combustion pipe, thereby obtaining a combustion pipe filled with cigarette paper; step (2) arranging the combustion pipe filled with cigarette paper obtained in the step (1) into a mirror reflection furnace, and performing a combustion test under cigarette paper combustion conditions; and step (3) capturing the cigarette paper combustion products in a primary solution capture mode by adopting a device for directly exposing cigarette paper additive thermal cracking products, wherein the capture solution refers to dimethyl sulfoxide. The method disclosed by the invention is simple, practical and high in operability, can comprehensively and effectively capture the cigarette paper combustion products and can be used for a subsequent biological test.

The invention discloses a medicament for treating rice blast. The medicament is prepared from 10 to 20 percent of albendazole, 70 to 75 percent of Chinese herbal medicament extracting solution and 5 to 30 percent of auxiliary agent, wherein the Chinese herbal medicament extracting solution is prepared by mixing Chinese herbal medicinal materials such as indigowoad root, baical skullcap root and weeping forsythia according to a mass ratio of 1:1:1 and then extracting the mixture by using 65 percent alcohol; the auxiliary agent is an emulsifying agent and a thickening agent; the emulsifying agent is 4 to 25 percent based on the total mass of all the materials; the thickening agent is 1 to 5 percent based on the total mass of all the materials; the model number of the emulsifying agent is 2201 or 4203; and the thickening agent is amylin or xanthan gum. The medicament for treating rice blast has the characteristics that: the medicinal effect is good and is better than the indoor biological test effect of the conventional medicament for treating rice blast; the bacteriostatic rate reaches 100 percent; field tests prove that the preventing effect reaches to over 90 percent; medicament resistance is difficult to generate; and the medicament cost is low. The medicament for treating the rice blast is suitable for preventing and treating rice blast.