4results about How to "Good antimicrobial performance" patented technology

The present invention belongs to the field of antimicrobial peptides in biotechnology, and specifically relates to an antimicrobial peptide, a recombinant antimicrobial peptide of the antimicrobial peptide, and a preparation method and application thereof. The amino acid sequence of the antimicrobial peptide is shown in SEQ ID NO: 1, and the nucleotide sequence of the gene expressing the antimicrobial peptide is shown in SEQ ID NO: 2. A recombinant antimicrobial peptide of the antimicrobial peptide is prepared, and the antimicrobial peptide or recombinant antimicrobial peptide can be used to inhibit the growth of Streptococcus suis and exhibit a highly efficient bactericidal effect on Streptococcus suis by increasing cell membrane permeability, or to participate in the regulation of IMD and Toll pathways, or to enhance the immune defense system of Lepidoptera Sphenopteridae insects, and improve the antimicrobial ability of Lepidoptera Sphenopteridae insects. The antibodies produced by using the antimicrobial peptide or recombinant antimicrobial peptide can be used to track the above antimicrobial peptide or the above recombinant antimicrobial peptide, or to promote the expression of multiple antimicrobial peptides of insects, or to specifically recognize, bind and shield antigens.

This invention belongs to the field of building materials, specifically relating to a preservative for polycarboxylate superplasticizers containing an isothiazolinone composition and its preparation method. The invention comprises, by weight, the following raw materials: 1-15 parts of preservative monomer, 0.5-2.0 parts of bactericidal monomer, 1-2 parts of stabilizer, and 50-90 parts of water. The bactericidal monomer is an isothiazolinone composition, including isothiazolinone derivatives and isothiazolinone quaternary ammonium salts; the preservative monomer is an organic bromine compound. This invention, using organic bromine compounds and isothiazolinone derivatives, provides a preservative for polycarboxylate superplasticizers that exhibits excellent antibacterial properties and tolerance, and can be widely applied in various fields.

The invention relates to the technical field of building materials, and specifically discloses an anti-cracking composite material for concrete repair and a preparation method thereof. The anti-cracking composite material comprises sodium alginate-based modified fiber, deionized water, hydroxymethyl cellulose, sodium dodecylbenzene sulfonate, a water reducer, calcium chloride and calcium oxide. The anti-cracking composite material can be used as a filling material for concrete, is evenly distributed in the concrete, can disperse the directional stress of the concrete, enhance its shrinkage deformation cracking ability, realize the self-repair of concrete cracks, reduce the internal defects of the concrete, thereby improving the microstructure of the concrete, can effectively ensure that the concrete is not easy to crack when subjected to external pressure, blocks the capillary crack channels inside the concrete, reduces the penetration rate of harmful substances such as water, chloride ions and air, and improves its tensile strength and durability. The components in the composite material act synergistically and have excellent concrete crack repairing ability.

The present invention provides a human body lubricating composition, a human body lubricant and a preparation method thereof, an application and related products, and belongs to the technical field of lubricants. The human body lubricating composition provided by the present invention is composed of the following components by weight: 2.8-7.5 parts of aloe polysaccharide sulfate, 4.7-9 parts of sodium hyaluronate, 0.75-1.5 parts of snow lotus culture, 51.42-57.15 parts of water, 8.7-14.4 parts of moisturizing agent, 1.07-3.7 parts of thickener, 0.3-0.75 parts of antibacterial agent, 0.15-0.75 parts of antioxidant and 0.1-0.5 parts of anti-aging agent. The present invention adds aloe polysaccharide sulfate component in the human body lubricant, improves the durability and antimicrobial ability of the lubricating effect of the lubricant, and plays a synergistic effect by compounding the three components of aloe polysaccharide sulfate, sodium hyaluronate and snow lotus culture.