39 results about "Magnesium pyrophosphate" patented technology

The invention provides a mycobacterium tuberculosis gene rapid diagnostic kit based on loop-mediated isothermal amplification technology and detection method thereof. The kit consists of the following materials: two pairs of primers, DNA polymerase, reaction solution, lysate 1, lysate 2, stabilizing solution, color developing solution and positive control solution which are respectively contained in vessels. The gene rapid diagnostic kit has six sections and four primers and can be used for determining whether a target substance exists according to amplification situations, thus having high specificity. The gene rapid diagnostic kit is rapid, efficient and highly sensitive, and amplification reaction only requires constant temperature without a special reagent and special equipment. The gene rapid diagnostic kit has convenient identification, pyrophosphoric acid ions separated from dNTP are bonded with Mg in the reaction solution to produce a by-product magnesium pyrophosphate precipitate which can be identified by visual inspection, and negative and positive results show significant difference in color development after the color developing solution is added, which is more obvious and reliable.

The invention discloses a chicken infectious anemia virus LAMP (loop-mediated isothermal amplification) detection kit and a detection method thereof and relates to the technical field of biology. 198 highly conserved nucleotide sequences at the positions of 532bp to 729bp of a chicken infectious anemia virus gene sequence are selected as target regions to design a specific LAMP primer group; the specific LAMP primer group comprises positive and negative outer primers F3 and B3, positive and negative inner primers FIP and BIP and positive and negative ring primers LF and LB; and the nucleotide sequences are shown in SEQNO1-6. The high efficiency amplification of the target regions can be completed by the primer group in one hour; and agarose electrophoresis is dyed by a product according to the conditions, or the magnesium pyrophosphate precipitation turbidity of a by-product is detected, or after a color-developing agent is added, the color reaction is observed to judge a result. The kit formed by the invention has the advantages of convenience, rapidness, low price and strong specificity and is suitable for clinical diagnosis and monitoring of the chicken infectious anemia.

The invention provides a loop-mediated isothermal amplification technology-based Listeria monocytogenes rapid diagnostic kit and a testing method thereof; the diagnostic kit consists of two pairs of primers, a DNA polymerase, a reaction solution, a sample pretreatment solution, a color developing agent and a positive control solution which are respectively put in containers; the gene rapid diagnostic kit applies six sections and four primers to judge whether a target substance exists according to whether amplification occurs, thus having high specificity. The gene rapid diagnostic kit is rapid and highly effective, has high sensitivity, only needs a constant temperature for amplification and requires no special agents or equipment. The gene rapid diagnostic kit conducts diagnosis conveniently: pyrophosphate groups released by dNTP are bonded with mg in the reaction solution to generate a sedimentary byproduct, i.e. magnesium pyrophosphate which can be observed and judged visually; after the color developing agent is added, the color for a positive result is significantly different from the color for a negative result, thus being more obvious and reliable.

The present invention provides a silver-containing inorganic antibacterial agent with excellent transparency, which is realized by the silver-containing inorganic antibacterial agent of formula AgaMbMgcRd(PO4) nH2O containing magnesium pyrophosphate, wherein M is selected from alkali metal ions, Ions of at least one of ammonium ions, hydrogen ions, and oxonium ions, R is a metal ion with a valence of 2, a, b, c, d, and n are 3 or less, a, c are positive numbers, and satisfy 2.5 <(c+d)<3, a+b+2(c+d)=6. The silver-containing inorganic antibacterial agent of the present invention has the characteristics of excellent heat resistance, discoloration resistance, water washing resistance and processing performance when applied to polymer materials, and can be especially applied to transparent products.

The invention discloses a rapid diagnostic reagent kit of legionella pneumophilia genes based on a loop-mediated isothermal amplification technique and a detecting method thereof, wherein the reagent kit consists of two pairs of primers, DNA polymerase, a stable liquid, a reaction liquid, a sample pretreatment liquid, a color rendering liquid and a positive contrast liquid which are respectively placed in a container. The gene rapid diagnostic reagent kit can judge whether target substances exist or not by applying applies six sections and the four primers according amplification or non-amplification, and thereby has high specificity. The gene rapid diagnostic reagent kit has high speed, high efficiency and high sensitivity, only needs a constant temperature for amplification reaction without special reagents and equipment, and has low detection cost. The gene rapid diagnostic reagent kit has simple identification, can generate magnesium pyrophosphate deposits as a byproduct by combining pyrophosphate ions precipitated from dNTP and Mg<2> in a reaction solution, can identify the magnesium pyrophosphate deposits through visual study, and has remarkable color rendering difference of negative and positive results after the color rendering liquid is added, and is more marked and reliable.

The invention discloses a primer group for testing Roundup Ready transgenic soy bean EPSPS gene based on the loop-mediated isothermal amplification of DNA (LAMP), a rapid diagnosis kit and a testing method thereof. The kit comprises the primer group, Bst DNA polymerase, stabilizing solution, reacting solution, developing solution and positive control solution. The kit applies six sections and four primers, can judge whether the target substance is existent or not according to the amplification, so that the kit has a high specificity. The rapid diagnosis kit of the invention is rapid, efficient and sensitive; the amplification reaction can be realized only needing constant temperature without the special agent or equipment; the testing cost is low and the test process is simple. Pyrophosphate ions separated from the dNTP are combined with Mg<2> in the reaction solution to generate the byproduct, i.e. magnesium pyrophosphate deposition, which can be observed and appraised by viewing; and the developing differences of the negative and positive results are obviously by adding the developing solution, and the results are more obvious and reliable.

The invention discloses a rapid diagnosis kit and a detection method of genes of vibrio vulnificus. The kit consists of two pairs of primers, DNA polymerase, stabilizing solution, reaction solution, sample pre-treatment solution, color development solution and positive comparison solution, wherein, the seven solutions are respectively placed in containers. The rapid diagnosis kit of genes of the invention applies six sections and four primers and can judge whether target materials exist only according to the amplification, thus being high in specificity. The rapid diagnosis kit of genes of the invention is high in speed, high in efficiency and sensitivity, can amplify the reaction with only constant temperature, without special reagents or equipment, and is low in detection cost. The rapid diagnosis kit of genes of the invention is simple and convenient in identification. Pyrophosphate ions separated out from the dNTP are combined with Mg<2+> in the reaction solution to produce a by-product which is the sediment of magnesium pyrophosphate which can be identified by naked eyes. Furthermore, after the color development solution is added, the color development differences of negative and positive results are notable and the identification is more obvious and reliable.