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8592 results about "Color changes" patented technology

Inorganic/organic nano composite antibacterial agent and its fabric product application

The invention relates to an inorganic / organic nano-composite antibacterial and application of fiber product thereof. 0.01-20 proportions of inorganic antibacterial, 0.01-35 proportions of organic antibacterial, 0.0001-0.4 proportion of inorganic / organic antibacterial compatibility finishing agent, 0.05-40 proportions of macromolecule bond, 0.0001-0.4 proportion of stabilizer that prevents color change of the inorganic antibacterial, 0.1-30 proportions of high efficiency emulsifying agent and 100 proportions of distilled water are added in sequence by weight proportion, wetted, dispersed, ground, dispersed at high-speed, stirred, etc., so as to acquire the nano-composite antibacterial. The antibacterial can process the fiber product by a dip-dye method, a roll-dye method, a spray method, etc. Dresses, socks and socks, blankets, beddings, gowns, patient wears, masks, medicinal gauzes, air filtering nettings, etc., made from the inorganic / organic nano-composite antibacterial of the invention are characterized by high antibacterial efficiency, rapid antibacterial function, long lasting antibacterial performance, laundering durability, etc., and the inorganic / organic nano-composite antibacterial of the invention is applicable to life, medical care, etc., and has the functions of preventing the occurrence and transmission of diseases, protecting the health of people and improving life quality.

Combinatorial array for nucleic acid analysis

This invention relates to an array, including a universal micro-array, for the analysis of nucleic acids, such as DNA. The devices and methods of the invention can be used for identifying gene expression patterns in any organism. More specifically, all possible oligonucleotides (n-mers) necessary for the identification of gene expression patterns are synthesized. According to the invention, n is large enough to give the specificity to uniquely identify the expression pattern of each gene in an organism of interest, and is small enough that the method and device can be easily and efficiently practiced and made. The invention provides a method of analyzing molecules, such as polynucleotides (e.g., DNA), by measuring the signal of an optically-detectable (e.g., fluorescent, ultraviolet, radioactive or color change) reporter associated with the molecules. In a polynucleotide analysis device according to the invention, levels of gene expression are correlated to a signal from an optically-detectable (e.g. fluorescent) reporter associated with a hybridized polynucleotide. The invention includes an algorithm and method to interpret data derived from a micro-array or other device, including techniques to decode or deconvolve potentially ambiguous signals into unambiguous or reliable gene expression data.

Amino acid substituted-cresyl violet, synthetic fluorogenic substrates for the analysis of agents in individual in vivo cells or tissue

The present invention concerns a method to detect the presence of an enzyme in in vivo or in vitro tissue or cell, which method comprises:(a) obtaining a tissue or cell sample to be analyzed;(b) contacting the tissue or cell sample with a substrate of the structure selected from the group consisting of:X=H or one or more natural or synthetic amino acids with or without amino blocking groups,Y=H or one or more natural or synthetic amino acids with or without amino blocking groups,wherein X and Y are the same or different and are amino acid sequences of between about 1 to 1,000,000 amino acids wherein each amino acid is the same or a different amino acid, with the proviso that at least one of X or Y is at least one amino acid;(c) when an enzyme is present in the tissue or cell sample which degrades X, Y and combinations thereof, fluorescent cresyl violet is released in the tissue sample producing a color change;(d) detecting the presence and amount of the enzyme present by the detection and quantification of the fluorescence produced; and(e) optionally comparing the fluorescence to a pre-calibrated fluorescence scale to quantify the fluorescence present. A diagnostic kit for use and a method to prepare amino acid cresyl violet derivatives are described.
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