35 results about "Artificial urine" patented technology

The invention discloses a high-breathability water absorbable acrylic ester foamed material as well as a preparation method and an application thereof. The prepared high-breathability water absorbable acrylic ester foamed material has strong toughness, and good breathability; the obtained foamed material is small in cell size, average deionized water absorption rate, average saline water absorption rate, average artificial urine absorption rate and average artificial blood absorption rate of the obtained foamed material are respectively higher than 15g / g, and water retention rate in half hour is more than 80%, so that the high-breathability water absorbable acrylic ester foamed material is applicable to dispersion and storage of water containing fluid; meanwhile, nano calcium carbonate is added, so that production cost is obviously reduced, and the high-breathability water absorbable acrylic ester foamed material is applicable to mass production; a block flexible water absorbing material in the invention is suitable for application in the field of health products.

Provided are: a water-absorbent resin which, when used as an absorbent material, retains a high water-absorption performance, increases the diffusivity of a to-be-absorbed liquid and makes it possible to effectively decrease the amount of re-wet; and an absorbent article formed using an absorbent material including the water-absorbent resin. The water-absorbent resin according to the present invention is a water-absorbent resin obtained by polymerizing a water-soluble ethylenically monomer in the presence of an internal-crosslinking agent and thereafter post-crosslinking the polymer with a post-crosslinking agent, characterized in that when subjected to a liquid flow test, the water-absorbent resin has an effective absorbent material index (K) indicated by equation (I) of 250 or greater.Effective absorbent material index (K)=[(the amount of liquid flow) (g)]×[(artificial-urine absorption ratio) (g / g)]  (I)

The invention discloses a high-strength water-absorbing acrylate foam material and its preparation method and application. The tensile strength of the prepared high-strength water-absorbing acrylate foam material is significantly enhanced; and the cell size of the product is small, and its average deionized water absorption rate, average salt water absorption rate, average artificial urine absorption rate, and average artificial blood absorption rate are all greater than 15g / g, and the half-hour water retention rate is all above 80%, which is suitable for dispersing and storing aqueous fluids, so the block of the present invention is soft Water-absorbent materials are well suited for use in the field of hygiene products.

The invention discloses a 11-dehydro-thromboxane B2 determination kit. The kit comprises: a reagent R1 including 0.01-2% (w / v) of 11dhTxB2 antibody and a buffering solution; a reagent R2 including 0.1-2% (w / v) of a 11dhTxB2 protein coated latex nanoparticle buffering solution; a calibrating substance comprising the 11dhTxB2 protein and a buffering solution; and a quality control substance which is a 11dhTxB2 protein dissolved in artificial urine. The 11-dehydro-thromboxane B2 determination kit improves the sensitivity and the linear range of detection of the 11-dehydro-thromboxane B2 content of urine, the detection sensitivity can reach 775pg / ml, and the linear range can reach 0-6300pg / ml. The 11-dehydro-thromboxane B2 determination kit has the advantages of high sensitivity, good specificity, high accuracy, good precision and good stability.

The invention discloses a strong wettability acrylate foam material and its preparation method and application. The strong wettability acrylate foam material has a certain toughness, small cell size, strong wettability, and the water absorption rate of the prepared foam material High; the average deionized water absorption rate, the average salt water absorption rate, the average artificial urine absorption rate, and the average artificial blood absorption rate of the acrylate foam material of the present invention are all greater than 15g / g, and the water retention rate in half an hour is all above 85%. It is suitable for dispersing and storing water-containing fluids, so the block-shaped soft water-absorbing material of the present invention is very suitable for application in the field of sanitary products.

The invention belongs to the field of biological macromolecular probes, and particularly relates to a fluorescent reagent and a method for measuring human albumin and efficiently and quickly identifying the human albumin and bovine serum albumin. A schiff base organic compound with a typical torsion intramolecular charge transfer feature is designed and synthesized on the basis of a triphenylamine and 15-crown-5 ester structure, and is used as the fluorescent reagent; protein is added into a neutral phosphate buffer solution, the human albumin can be quickly identified from several types of common proteins according to compound fluorescent spectrum features, and a standard curve is established to quantitatively measure the contents of serum proteins in a buffered saline solution and artificial urine. The concentration of the probe reagent is 50mu M, and the 5mu M human albumin can be identified; after quantitative detection, the range of the human albumin in the buffered saline solution is 0 to 5.6mu M, and the minimum detection limit is 0.112mg / L; the range of the human albumin in the artificial urine is 0 to 1.2mu M, and the minimum detection limit is 1.95mg / L.

The invention discloses an air-permeable and water-absorbent acrylate foam material with silver and zinc anti-bacteria particles, as well as a preparation method and application of the air-permeable and water-absorbent acrylate foam material. The size of foam cells of the prepared foam material is tiny, the average deionized water absorption rate, the average brine absorption rate, the average artificial urine absorption rate and the average artificial blood absorption rate are all larger than 18g / g, the water retention rate in an hour is more than 85%, and the acrylate foam material is suitable for dispersing and storing fluids containing water; additionally, due to addition of the silver and zinc anti-bacteria particles, the manufactured foam material has good anti-bacteria performance, and the anti-bacterial rate of escherichia coli and staphylococcus aureus are both more than 95%; due to addition of light calcium carbonate, the air penetration amount is larger than 1.5*10-2cm3 / (m2*Pa*d), which shows good air permeability. Therefore, the block-shaped soft water-absorbent material is especially suitable for the field of toilet articles.

The invention discloses a highly air-permeable water-absorbing acrylate foam material and its preparation method and application. The prepared highly air-permeable water-absorbing acrylate foam material has strong toughness and good air permeability; the cell size of the obtained foam material Tiny, its average deionized water absorption rate, average saline absorption rate, average artificial urine absorption rate, and average artificial blood absorption rate are all greater than 15g / g, and the half-hour water retention rate is above 80%, suitable for dispersing and storing aqueous fluids At the same time, the present invention significantly reduces the production cost by adding nano-calcium carbonate, and is suitable for large-scale production; the block-shaped soft water-absorbing material of the present invention is very suitable for use in the field of sanitary products.

The invention provides a preparation method of a straw-base composite water-absorbing material. The method comprises the following steps: taking fresh straws, airing, pulverizing into fine powder, adding the fine powder into a composite-enzyme-containing phosphate buffer solution, heating for fumigation, mixing the activated straw fine powder, potassium persulfate, a silane coupling agent, water, dodecyl-sulfonate-modified starch and polyglycerol ricinoleate, carrying out reaction at 70-90 DEG C to obtain a graft, adding lecithin, gelatin, glyceryl triacetate and n-butyl titanate into the graft, dropwisely adding a NaOH solution, stirring, and carrying out reaction at 40-50 DEG C; and finally, filtering out the reaction product, cleaning and drying to obtain the water-absorbing material. The maximum water absorbency of the water-absorbing material is 633.33 g / g, the maximum salt absorbency is 133.33 g / g, and the maximum artificial urine absorbency is 133.33 g / g. The water-absorbing material has the advantages of high salt resistance, favorable water absorptivity and favorable water retention property.

The invention relates to an intelligent urine detector, a urinal and a urine detection method. The intelligent urine detector comprises: a feeding mechanism comprising a storage box and a pushing unit, wherein the storage box is filled with a plurality of test paper boxes, and the pushing unit is used for pushing the test boxes to a two-dimensional conveying mechanism; the two-dimensional conveying mechanism which is controlled to move along a first direction to realize feeding or discharging or is controlled to move along a second direction to realize urine taking or supplied urine information reading; a scanning mechanism used for reading the urine information in the test paper boxes; and a control mechanism connected with the feeding mechanism, the conveying mechanism and the scanning mechanism to control coordinative work of all the mechanisms in order to realize intelligent urine detection. The intelligent urine detector, the urinal and the urine detection method effectively overcome the disadvantages of artificial urine detection, and realize feeding, automatic urine taking, urine information reading and discharging through adopting the cooperation of the feeding mechanism, the two-dimensional conveying mechanism, the scanning mechanism and the control mechanism.