Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Hiro

68 results about "Drug Sample" patented technology

A unit of a pharmaceutical product intended to promote the use of the drug and not intended for sale.

Carborane-perylene diimide derivative and synthesis method thereof, sensing array based on derivative and preparation method and application of sensor array

ActiveCN107698614AInhibition of intermolecular stackingAdjust energy level structureGroup 3/13 element organic compoundsFluorescence/phosphorescenceSensor arraySynthesis methods
The invention discloses a carborane-perylene diimide derivative and a synthesis method thereof, a sensing array based on the derivative and a preparation method and an application of the sensor array,and belongs to the technical field of small-molecular fluorescent sensing thin film materials. The carborane-perylene diimide derivative is placed in a solution, is assembled into a fiber structure with relatively large specific surface, and then is transferred to different substrate surfaces, so as to obtain the sensing array composed of a variety of fluorescent thin films; the sensing array canbe sensitive to sense six important drug gases, and drug samples have no need of any treatment; at the same time, through array combination, the interference of common interferents is eliminated thoroughly. The operation is simple, and the reaction conditions are mild. The prepared fluorescent sensing thin film has good stability and long service life, and is an excellent drug gas sensing thin film array. With combination use of the thin film and commercial fluorescent instruments, the drug gases can be sensitively detected. In addition, the drug gas special detection instrument can be developed through the device of the sensing thin film.
Owner:SHAANXI NORMAL UNIV

Integrated drug screening and staining dyeing micro-fluidic chip and preparation method thereof

The invention discloses an integrated drug screening and staining micro-fluidic chip, which is such structured that a liquid path control layer is arranged on the upper layer of the micro-fluidic chip, a gas path control layer is arranged on the lower layer, and a blank glass base plate is arranged on the bottom surface of the micro-fluidic chip; and specifically, the micro-fluidic chip structurally comprises a cell fluorescent staining sample inlet, a fluorescent staining sampling channel area, a cell sample inlet, a cell sampling channel area, a cell culture room, a drug sampling channel area, a drug sample inlet, a liquid outflow channel area and a liquid outlet. The invention also provides a preparation method of the integrated drug screening and staining micro-fluidic chip, wherein the preparation method of the integrated drug screening and staining micro-fluidic chip comprises the following steps: preparing a photoresist template that channel parts protrude; promoting developingand hardening; processing the template by virtue of a silylating reagent; obtaining a polydimethylsiloxane chip having a structure; and implementing irreversible sealing. The micro-fluidic chip provided by the invention is simple in structure, convenient in preparing operations, high in speed, high in efficiency and broad in application scope.
Owner:DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI

Method for detecting content of NDMA in tidine drug

The invention discloses a method for detecting the content of NDMA in a tidine drug. The method adopting liquid chromatography-mass spectrometry detection comprises the following steps: (1), separating a tidine drug sample by using liquid chromatography that adopts a hydrophilic interaction chromatographic column, and has no acid added into a pre-column mobile phase; and (2), detecting the NDMA content of the sample subjected to liquid chromatography separation in combination with mass spectrometry. According to the invention, a hydrophilic interaction chromatographic analysis method is adopted to separate the tidine component and the NDMA; acid is not added into the pre-column mobile phase, so that the tidine and the NDMA are kept in a non-ionic state to be separated, the separation timedifference between the tidine and the NDMA is 12-13 minutes; and thus the interference of tidine components on the NDMA can be completely removed, and the quantitative result is accurate. According tothe method, electrospray ionization is combined with tandem mass spectrometry, ESI is low-temperature mass spectrometry, the mass spectrometry part is non-high in resolution, and the manufacturing cost is relatively low, so that the application and popularization performance is higher, and the conversion and application prospect is good.
Owner:HUNAN NORMAL UNIVERSITY

Model training method and device, computer equipment and storage medium

The embodiment of the invention provides a model training method and device, computer equipment and a storage medium, and belongs to the technical field of artificial intelligence. Comprising the steps of obtaining multiple pieces of inquiry sample data and corresponding prescription sample data; performing prediction processing on the patient sample data and the dialogue sample data through a pre-training model to obtain prescription prediction data; calculating a first loss value according to the plurality of drug prediction data; constructing a drug co-occurrence matrix according to the multiple drug sample data, and calculating a second loss value; and training the pre-training model according to the first loss value and the second loss value to obtain a prescription recommendation model. According to the embodiment of the invention, the drug co-occurrence matrix is constructed through the prescription sample data, and the drug co-occurrence loss is added according to the drug co-occurrence matrix, so that not only is the correlation among a plurality of drugs considered, but also the problem that classifiers are increased along with the increase of the number of the drugs in the prescription recommendation model is avoided, and the training efficiency of the model is improved.
Owner:PING AN TECH (SHENZHEN) CO LTD

Uniform mixing device for detecting number of bacteria in food and drug sample

ActiveCN109868209AThere will be no up and down shakingThere will be no slipping outBioreactor/fermenter combinationsBiological substance pretreatmentsDrive shaftEngineering
The invention relates to the technical field of bacterial quantity detection, and relates to a mixing device for detecting the number of bacteria in a food and drug sample. The device includes a operation table; a driving shaft is rotationally connected to the operation table; the driving shaft is rotationally connected with a tray for bearing a culture dish; at least three fixing mechanisms usedfor fixing the culture dishes are arranged around the tray, each fixing mechanism comprises a limiting claw and a rotating shaft used for driving the limiting claw, the limiting claws are fixedly connected with the rotating shafts, the limiting claws comprise first limiting claws and the second limiting claws, and the first limiting claws and the second limiting claws are located on the two sidesof the culture dishes respectively; the rotating shaft is rotationally connected with the tray, a driven gear is fixedly arranged on the rotating shaft, one side of the driven gear is meshed with a driving gear, and the driving gear is fixedly arranged on the driving shaft. By the adoption of the scheme, bacteria can be more stably mixed, and the technical problem that a culture solution is proneto spilling out when the bacteria are shaken and mixed evenly is solved.
Owner:CHONGQING MEDICAL & PHARMA COLLEGE

Medicine recognition method based on machine learning and related equipment

The invention provides a medicine recognition method based on machine learning and related equipment. The medicine recognition method comprises the following steps of: extracting a vector sequence ofa second drug statement sample by using an encoding model, and training a chemical substance identification model according to a chemical substance label of a second drug sample by taking a vector sequence of the second drug sample as input; extracting a vector sequence of a third drug statement sample by using the encoding model, and training a therapeutic substance recognition model according toa therapeutic substance label of a third drug sample by taking a vector sequence of the third drug sample as input; extracting a vector sequence of a to-be-recognized drug statement by using the encoding model, acquiring a chemical substance entity set by recognizing the vector sequence of the to-be-recognized drug statement by means of the chemical substance recognition model, and acquiring a therapeutic substance entity set by recognizing the vector sequence of the to-be-recognized drug statement by means of the therapeutic substance recognition model; and determining substance entities existing in both the chemical substance entity set and the treatment substance entity set as drugs. According to the medicine recognition method, the drug identification efficiency and accuracy rate areimproved.
Owner:PING AN TECH (SHENZHEN) CO LTD

On-line structure detection method for liquid phase components based on two-dimensional liquid chromatography and mass spectrometry

PendingCN108982697AOnline rapid measurement of molecular weightRapid Molecular Weight MeasurementComponent separationRetention timeMass analyzer
The invention relates to an on-line structure detection method for liquid phase components based on two-dimensional liquid chromatography and mass spectrometry. The impurities in samples are detectedon line by high performance liquid chromatography and mass spectrometry, and the samples are selected from biological samples, drug samples, food samples and chemical samples. The on-line structure detection method comprises the following steps: (1) separating samples in a first-dimensional chromatograph, performing elution and desalination, and draining fractions cut from required fractions according to retention time into a quantitative ring mounted on a through valve, wherein the first-dimensional chromatograph contains a first mobile phase: (2) switching the through valve after drainage, and flushing the fractions onto a column head in a second-dimensional chromatograph through a second mobile phase in the second-dimensional chromatograph; (3) when the impurity content is lower and does not meet the detection sensitivity, repeating the steps (1) and (2) to accumulate the fractions on the column head, performing elution and desalination treatment, and flushing the treated fractionsinto a mass spectrometer for molecular weight or material structure debris detection.
Owner:张骐

Drug sample separation transport cart for nurse station logistical support

The invention discloses a drug sample separation transport cart for nurse station logistical support. The transport cart comprises a base plate, a first magnet layer is arranged in the center of the upper surface of the base plate, a drug storage box is arranged above the first magnet layer, a second magnet layer magnetically attracted to the first magnet layer is arranged on the lower surface ofthe drug storage box, the upper, left, right and rear surfaces inside the drug storage box are each provided with a rectangular groove, a refrigerator is arranged inside each rectangular groove, the four corners of the upper surface of the base plate are each provided with a supporting rod, the upper surfaces of the supporting rods are jointly connected with a groove body, a plurality of partitionplates are arranged on the lower surface inside the groove body, and a buckled lid is hinged to the upper surface of the groove body. The drug sample separation transport cart has the advantages thatdrug sample separation transportation can be achieved, disassembling and assembling are convenient, a box can be stabilized, drug samples needing to be frozen are frozen independently, other drugs are not affected, drugs can be taken and stored conveniently, and the transport cart is simple in whole structure, convenient to operate, economical, practical and suitable for large-scale popularization.
Owner:上海骐钛机械有限公司

Intelligent food and drug sample reserving cabinet

The invention discloses an intelligent food and drug sample reserving cabinet (100). The sample reserving cabinet comprises a cabinet body (1), a first side sample reserving area (2) and a second side sample reserving area (3) are arranged on the two sides of the cabinet body (1) respectively, an intelligent control area (4) is formed between the first side sample reserving area (2) and the second side sample reserving area (3), the intelligent control area (4) comprises a face scanning device (41) fixed to the upper portion of the intelligent control area (4), a supporting plate (43) is fixedly arranged below the face scanning device (41), a snapshot device (42) is arranged on the supporting plate (43), and a printer (44) is further arranged in the intelligent control area (4). An operator is recognized and recorded through face scanning, meanwhile, articles are placed on the supporting plate (43) to be scanned and subjected to double inspection, information is printed synchronously, safe tracing of food and drug is guaranteed, and tampering is avoided, so that the sample reserving cabinet has tracing accuracy, uniqueness and real-time performance, is high in informatization degree, has high convenience, and is simple and easy to operate.
Owner:浙江智飨科技有限公司

Method for rapid identification and composition analysis of drugs

The invention relates to a method for rapid identification and composition analysis of drugs. The method comprises the steps of: taking a cotton swab dipped in methanol as an extraction medium, and swabbing the surface of a solid by means of the cotton swab to extract main components therein; then inserting the cotton swab into a reagent bottle containing methanol for simple washing and shaking, so as to dilute the amount of drugs dipped on the cotton swab, or directly painting on a sample injection cloth by using the cotton swab without dilution; and finally, using a portable ion trap mass spectrometer as a detection instrument, and identifying the suspected drug solid as opium through direction mass spectrometry and tandem mass spectrometry. The method is suitable for the rapid detectionof drug compositions in opium, and is suitable for the rapid detection of compositions in drugs of other types such as methamphetamine, heroin and marijuana. The method has the advantages that the sample pretreatment time is less than 5 min, the mass spectrometric detection time is less than 2 s, and the detection limits of five kinds of drug samples are all less than 10 ng, thereby greatly contributing to the on-site investigation, seizing and identification of drugs.
Owner:DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products