5results about How to "Fast color development" patented technology

The invention discloses a method for accelerating the color development speed of filamentous fungus resazurin and application of the method, and relates to the technical field of drug sensitivity detection. The invention provides a method for accelerating the color development speed of filamentous fungus resazurin, which comprises the following steps: S1, diluting a filamentous fungus bacterial liquid by using an MUELLER-HINTON culture medium, and adding the diluted filamentous fungus bacterial liquid into a to-be-detected drug hole for incubation; s2, performing suction filtration after incubation; s3, adding a color developing agent containing a catalyst for color development; s4, result interpretation; the catalyst in the step S3 is menadione. According to the MUELLER-HINTON culture medium, in the Aspergillus drug sensitivity detection process based on resazurin color development, after a catalyst is added, color development is accelerated, meanwhile, all medicine adding holes cannot be red, and the MIC value can be accurately obtained.

One of the objects of the present invention is to provide a photosensitive resin composition which has a reduced amount of side etching, excellent uniformity of copper line width, promotes color development of dye during exposure, and has excellent visibility of the exposed portion. According to the present invention, a photosensitive resin composition is provided, which comprises: (A) an alkali-soluble polymer, (B) a compound having an ethylenically unsaturated double bond, (C) a photopolymerization initiator, (D) a dye, and (E) a compound represented by the following general formula, wherein R 1 and R 2 do not have an amino group and are independently selected from the group consisting of a hydrogen atom or an organic group having 1 to 20 carbon atoms, wherein R 1 and R 2 At least one of them has an acidic group with a pKa of 5 or less.

The invention belongs to the technical field of cat health. Firstly, the invention provides a preparation process and a preparation system of the detection particles for evaluating the hydration state of the cat body, secondly, the prepared detection particles are used for a detection bag, finally, the detection bag is used for evaluating the hydration state of the cat body, and related judgment standards include that the cat body is olive green, and the urine specific gravity value is 1.025; the beverage is olive brown, and the urine specific gravity value is 1.030; the beverage is olive light yellow, and the urine specific gravity value is 1.040; the urine is olive yellow, and the urine specific gravity value is 1.050. In the invention, the related detection particles can rapidly and accurately detect the urine specific gravity (Usg), so that the hydration state of the cat body can be evaluated, and a pet keeper can conveniently know the daily hydration state of the cat.

This application relates to the field of in vitro bioassay technology, and discloses a method for preparing a colloidal gold assay reagent, its product, and its application. The method for preparing the colloidal gold assay reagent comprises five steps: colloidal gold preparation, antibody labeling, double blocking, centrifugal purification, and dilution and reconstitution. In particular, the double blocking process involves a first blocking agent selected from one or more of bovine serum albumin, ovalbumin, and casein; and a second blocking agent selected from one or more of lysine, glycine, alanine, serine, threonine, valine, and asparagine. This allows the prepared colloidal gold assay reagent to achieve high sensitivity and excellent C / T line color development when applied to FSH detection, reducing false positives caused by nonspecific adsorption and improving the accuracy of test results. Its limit of detection (LOD) is as low as 10 mIU / mL, solving the problems of low sensitivity and uneven C / T line color development in existing FSH assays.

The invention provides a precipitation type single-component TMB (Tetramethylbenzidine) substrate solution and application thereof. The precipitation type single-component TMB substrate solution adopts a citric acid-sodium citrate buffer system, the pH value of the buffer system is 4.5-5.0, and the buffer system contains TMB and heparin. Compared with a BCIP / NBT substrate commonly used in immunoblotting at present, the precipitation type single-component TMB substrate solution is more sensitive, lower in background, faster in color development and high and stable in precipitation efficiency under the same condition, blue purple precipitates can be formed on materials such as an NC membrane and polystyrene, and imprint of the precipitation type single-component TMB substrate solution is more suitable for visual inspection and comparison. The substrate solution is good in stability, long in shelf life, ready-to-use and convenient and fast to use.