32 results about "Biological specificity" patented technology

A method of controllably changing an intrinsic property of a quantum dot by using a biological entity, either attached or in close proximity to the quantum dot, and changing the state of biological entity with a controllable mechanism. The change in state of the biological entity controllably changes the intrinsic property of the quantum dot. The photoluminescence emission of quantum dots can be controlled by the present method. The methods disclosed include controlling the magnitude of QD photoluminescence as well as turning the photoluminescence on/off. The methods disclosed include using the same biological control architecture to control other intrinsic QD properties such as charge state, magnetic or other property.

The invention relates to a method for matching and comparing user ID and an ID matching system. The method for matching and comparing user ID comprises the following steps of: registering the parameters of user sample ID attribute data items of application projects; registering a unique corresponding bonding relation between sample ID identifiers and external application project ID identifiers; registering a data group which contains the same ID attribute data items of ID identifier users and corresponds to the sample ID attribute data items by using the sample ID attribute data items as a template; registering the biological specificity data of an ID user; and respectively comparing the data of the user ID attribute data items with the parameters in the same ID attribute data items corresponding to a sample ID attribute table to acquire an ID attribute comparison matching ratio R of the ID user. Only by the biological specificity ID authentication of an ID user, a matching ratio R between an ID identifier user and an ID identifier sample can be output as a parameter for the ID identifier user to operate an external application project of the ID identifier.

The biological specificity confirming equipment based on network has biological feature taking device to take user's biological features. The biological features together with the user's other information are stored in digital data memory and are further processed through compression/decompression, enciphering/diciphering and characteristic data operation to provide the safety mechanism essential for networking transmission. The safety confirming method may be used in various equipments, such as POS, credit card machine, ATM, entrance guard safety system and other safety management system. It may be also used in cellphone, PDA, IA product, etc. in embedding mode for ensure safety.

The invention relates to the field of water purification, in particular to a refuse recycled novel biological aggregate special for wet land. The novel biological aggregate comprises building refuse, the building refuse is used as a carrier, microorganisms are fixed to the carrier for reproduction on the basis of the effects of physical absorption, ion binding, covalent binding, biological specificity adsorption and the like between the microorganisms and the carrier, and the biological aggregate is formed. The water in the wet land can be effectively and rapidly purified so as to accord with the standards of natural ecology, and meanwhile a pollution main body is gradually prevented from continuing to be bred; a large amount of building refuse is consumed, the trouble caused by the building refuse to the city is effectively relieved, and the building refuse is better recycled.

The invention discloses preparation of fibrin magnetic micrometer material for separating mRNA and application thereof. The invention adopts a gene engineering technology to directionally clone the streptavidin and the gene of streptomyces lavendulae to pET series carrier which contains fibrin binding domain label, builds difunctional fusion protein CBD-SA carrier with biotin combination activityand fibrin combination activity, transfers E.coli BL21 competent bacterial strain, is expressed by means of IPTG low-temperature induction, and obtains high-content CBD-SA fused expression protein. CBD-SA is taken as biological bridging agent, the traditional physical adsorption method and a chemical bonding method are replaced by a biological specificity coupling method, so that the fibrin magnetic micrometer material is actived, agent with high-effeceicy combination biotinylation can be obtained after the activation, and magnetic micrometer material for separating protein or nucleic acid canbe obtained. The fibrin magnetic micrometer material can be used for separating and distilling the mRNA in biological samples, etc.

The invention discloses an apparatus for rapidly, conveniently, efficiently and quantitatively detecting allergic peanut proteins in a food, and a making method thereof, and belongs to a fluorescence microsphere labeled detection technology. The apparatus comprises a special property labeled biological macromolecule with biological specificity and a polymeric material film with adsorption mobility as carriers, and detection is carried out in the portable and small square apparatus. The special property of a tag is used to quantitatively detect a trace amount of allergic peanut proteins contained in the matrix of the food, and the detection limit reaches 0.1ng/mL. The special tag overcomes the problems of instability and low detection value of common tags. The apparatus is mainly used in the quantitative detection of residual peanut allergens in food safety.

The invention discloses a new usage of chitose on pharmacy field that is application of chitose for preparing Helicobacter pylori vaccine adjuvant. The invention proves that chitose can be used as mucous membrane adjuvant for Helicobacter pylori vaccine by animal experiment. The action mechanism of chitose used as mucous membrane adjuvant is that chitose has good biological specificity and immunocompetence, can enhance immunogenicity of antigen, and promote absorption of stomach and intestine mucous membrane for antigen and immunoreaction of mucous membrane local, adjust immunoreaction balance of TH1 and TH2, then brings its adjuvant effect into play. The invention also proves immunoloregulation effect for that Helicobacter pylori infects local of stomach mucous membrane by animal experiment.

The invention relates to a method for continuously authenticating mobile equipment in a mobile communication system. The steps are as follows: a system module which can be partially observed in the Markov decision process is built, the information states of information state space and each discrete time point are defined, a cumulative cost model is built, the corresponding relation between the information states and an optimal biological specificity authentication functional module is calculated, the optimal biological specificity authentication functional module is obtained on the basis of historical information, the next authentication is dispatched to perform, the information output at the next time point is observed, the information state of the system is updated and hereby, the authentication result is judged. The method for continuously authenticating mobile equipment in the mobile communication system ensures the optimization of the performance of the system, greatly improves the security of the mobile equipment, satisfies the requirements of users having very high requirements for the security of the mobile equipment, saves system resources and system operation cost, has stable and reliable working performance, wider application range and lays a strong foundation for the further development of the information safety technique of the mobile equipment.

The invention relates to a method for separating and culturing a virus of porcine pseudorabies with a PIEC (Pig Iliac Endothelium Cell), and belongs to the technical field of veterinary biology. According to the method, the virus of porcine pseudorabies is separated and cultured by utilizing the PIEC, and the virus titer of a PRV (Pesudorabies Virus) can reach 108.5-109.0 TCID50/mL after multiple rounds of purification and multiplication with plaques. The method has the advantages of laying the foundation and providing the technical support for the development of a vaccine, the research on biological specificity, the pathogenic mechanism and the like of the virus of porcine pseudorabies.

The invention discloses an apparatus for rapidly, conveniently, efficiently and quantitatively detecting soybean proteins in a food, and a making method thereof, and belongs to a fluorescence microsphere labeled detection technology. The apparatus comprises a special property labeled biological macromolecule with biological specificity and a polymeric material film with adsorption mobility as carriers, and detection is carried out in the portable and small square apparatus. The special property of a tag is used to quantitatively detect a trace amount of soybean proteins contained in the matrix of the food, and the detection limit reaches 0.1ng/mL. The special tag overcomes the problems of instability and low detection value of common tags. The apparatus is mainly used in the quantitative detection of residual soybean allergens in food safety.

The invention discloses a group of plasma protein markers for predicting nasopharyngeal carcinoma metastasis risk and application thereof. The markers comprise SLAMF5 (Sequence Location Assisted Middle Function 5), ESM-1 (Enhanced Science Model), MMP-8 (Methyl Methyl Pyrrolidone 8), INSR (Induced Sequence Regulator) and Serpin A5. The protein label formed by expression of the five proteins can reflect the biological specificity of a nasopharyngeal carcinoma patient, the metastasis risk and prognosis of the nasopharyngeal carcinoma patient can be predicted accurately and clinical medication can be better guided, and the prediction efficiency of the protein label on non-distant survival is superior to that of a single protein, a tumor N stage and an EBV-DNA level.

The invention discloses an apparatus for rapidly, conveniently, efficiently and quantitatively detecting cow's milk allergens in a food, and a making method thereof, and belongs to a fluorescence microsphere labeled detection technology. The apparatus comprises a special property labeled biological macromolecule with biological specificity and a polymeric material film with adsorption mobility as carriers, and detection is carried out in the portable and small square apparatus. The special property of a tag is used to quantitatively detect a trace amount of cow's milk allergens contained in the matrix of the food. The special tag overcomes the problems of instability and low detection value of common tags. The apparatus is mainly used in the quantitative detection of residual cow's milk allergens in food safety.