6results about How to "Good synergistic effect" patented technology

The invention belongs to the field of biological medicine, and discloses a mesenchymal stem cell-derived exosome and active factor secretion composition and a directional preparation method thereof. According to the method, umbilical cord tissues of healthy mammals are used as raw materials, primary stem cells are separated through enzymolysis, and amplification and passage are conducted to 3-5 generations through an alpha-MEM culture medium; a serum-free induction culture medium containing multiple functional components is adopted for directional induction, a conditioned culture medium is collected, gradient centrifugation and ultrafiltration concentration are performed, and the protein concentration is calibrated to be 2 mg / mL, so that a finished product is obtained. The product can synergistically realize moisturizing, anti-wrinkle and tightening effects. Specifically, the exosome and active factor secreted composition is a composite system which is obtained by separating and concentrating mesenchymal stem cells from a conditioned medium of the mesenchymal stem cells after the mesenchymal stem cells are directionally induced by the method and is mainly composed of the exosome, growth factors self-secreted by the stem cells, cell factors and macromolecular active protein.

The invention relates to the technical field of skin care product raw materials, and particularly discloses an anti-aging composition and a preparation method thereof, the anti-aging composition comprises the following components by mass: 9-10 parts of a composite extract; 4.7 to 5.3 parts of a cell metabolism activator; 0.9 to 1.1 parts of a preservative; 84.6 to 86.4 parts of a solvent; the composite extract is prepared by compounding a dendrobium officinale stem extract, a snow lotus herb extract, a cistanche deserticola extract and a ganoderma spore extract. The anti-aging tea has the advantage of having a better anti-aging effect.

The application discloses a water-based rust conversion agent, which comprises the following raw materials in parts by weight: water-based styrene-acrylic emulsion 45-55 parts, nano-lotus clay coordination compound liquid modifier 15-20 parts, nano-barium sulfate coordination agent 5-9 parts, rust conversion agent 3-6 parts, defoaming agent 3-5 parts and film-forming aid 1-3 parts. The application has strong wetting and penetrating functions, can penetrate to the bottom of a rust layer to passivate or convert the rust layer, and is suitable for the following fields: steel bar corrosion prevention in a construction site, steel structure workshop manufacturing and maintenance, color steel tile manufacturing and corrosion prevention renovation, shipbuilding, large equipment manufacturing and maintenance, storage tank manufacturing and the like.

This invention describes a modified silicate-polyurethane two-component grouting reinforcement material, comprising component A and component B, which are mixed in a 1:1 volume ratio before use. Component A, by mass percentage, consists of the following components: water glass: 94%; glycerol: 1%; glyceryl ester compounds: 1%; silane coupling agent: 1%; water: 3%. Component B, by mass percentage, consists of the following components: polymethylene polyphenyl polyisocyanate PM-200: 65%; dibutyl phthalate (DBP): 35%. This invention utilizes the synergistic effect of glyceryl ester compounds and silane coupling agents. The glyceryl ester compounds reduce the interfacial tension between the aqueous and oil phases and promote the uniform dispersion of the silane coupling agent. The silane coupling agent forms a chemical bridge between the inorganic and organic phases, enabling the originally incompatible aqueous and oily agents to form a homogeneous and compatible system. The resulting solidified body has a compressive strength of 24.6 MPa and a bond strength of 3.8 MPa, making it suitable for seepage prevention and sealing in underground engineering and for surrounding rock reinforcement.

The present application relates to the technical field of metal material surface protection, and in particular, relates to a preparation method of a blue laser cladding additive nickel-copper-based eutectic high-entropy alloy offshore wind power protection material. As one of the core pillar industries of global energy transformation, offshore wind power is long-term served in the extreme marine environment of high temperature, high humidity and high salt mist. The corrosion protection problem of key structural components (such as tower foundation, flange connecting surface, main shaft bearing, gear box shell, etc.) directly determines the operation safety and service life of the wind turbine generator. The present application combines innovative alloy composition design with advanced blue laser cladding technology to prepare a eutectic high-entropy alloy protection layer with excellent mechanical properties and corrosion resistance, providing a new technical solution for long-term protection of offshore wind power equipment. It belongs to the key technical innovation in the cross field of high-end equipment manufacturing and surface engineering.

This invention discloses a non-contact method for preserving pork using a composite essential oil emulsion combined with an electrostatic field and modified atmosphere packaging. The prepared composite essential oil nanoemulsion is packaged in polyethylene packaging, and the chilled pork is preserved using an electrostatic field synergistic with modified atmosphere packaging. A simple ultrasonic method is used to prepare a composite essential oil nanoemulsion composed of composite essential oils and Tween 80. This prepared emulsion and cooled, acid-removed pork are then placed in an O2 atmosphere. 2 CO 2 N 2 The product is stored in modified atmosphere packaging bags of polyethylene at 4±1℃. This invention can effectively control the increase in total bacterial count, volatile basic nitrogen, and pH of chilled pork during storage, better maintain the product's textural properties, color, and sensory quality, and extend the shelf life of chilled pork by 4-6 days.