6results about How to "Good cell compatibility" patented technology

This invention discloses a method for preparing and applying an antibacterial composite coating based on quaternized zinc oxide nanoparticles. The preparation method includes: grafting quaternary ammonium salt compounds onto the surface of zinc oxide nanoparticles to prepare synergistic antibacterial nanoparticles; modifying the substrate surface by co-deposition of dopamine and polyethyleneimine to introduce active functional groups; and spraying or dipping the quaternized zinc oxide nanoparticles onto the modified substrate surface to obtain the antibacterial composite coating. This novel antibacterial material preparation scheme can integrate the advantages of zinc oxide nanoparticles and quaternary ammonium salts, while solving key technical problems such as nanoparticle aggregation, weak interfacial bonding, and limited antibacterial efficiency. It is of great significance for promoting the upgrading of hygiene and safety in the fields of medicine, food, and building materials.

The present application relates to the technical field of cosmetic raw materials, and discloses a camellia flower composite oil, a preparation method and application thereof, and a cosmetic. The preparation method of the camellia flower composite oil comprises the following steps: (1) performing enzymatic reaction on camellia oil in the presence of lipase and a solvent, and separating to obtain enzymatic camellia oil; (2) performing extraction on camellia flower powder and the enzymatic camellia oil to obtain an extraction mixture; and (3) performing solid-liquid separation on the extraction mixture to obtain the camellia flower composite oil. The camellia flower composite oil provided by the present application has high polarity, high antioxidant property, high safety and good formulation application performance, and can significantly improve the water phase carrying capacity and long-term stability of a water-in-oil emulsion.

This invention discloses a surfactant-based self-adhesive electroluminescent device and its preparation method. The preparation method includes: preparing a polydimethylsiloxane film; preparing a nanocellulose suspension; mixing the nanocellulose suspension with silver nanowires to obtain a conductive composite suspension; preparing a light-emitting layer solution; spraying the conductive composite suspension onto the surface of the polydimethylsiloxane film to obtain the electrodes of the electroluminescent device; spin-coating the light-emitting layer solution onto the upper surface of several electrodes of the electroluminescent device to form a light-emitting layer; and laminating the electrodes of several electroluminescent devices onto the light-emitting layer to obtain the surfactant-based self-adhesive electroluminescent device. The electroluminescent device provided by this invention has excellent adhesion, water resistance, fatigue resistance, high tensile strength, high surface compliance, high dielectric constant, cell compatibility, and bi-lateral light emission.

The application belongs to the technical field of biomedical ceramic materials, and particularly relates to an inkjet 3D printing zirconia ceramic product with an intrinsic hydrophilic surface and a preparation method and application thereof. The preparation method of the inkjet 3D printing zirconia ceramic product provided by the application realizes extreme grain refinement of the zirconia ceramic, micro-strain introduction and generation of a trace amount of monoclinic phase by optimizing ink components, printing parameters and debinding and sintering processes, so that high surface energy and hydrophilic properties are obtained. The product exhibits excellent cell compatibility, immune regulation properties and soft and hard tissue integration ability without any subsequent surface modification treatment.

This invention relates to a method for preparing mulberry leaf extract through multiple fermentation, and the mulberry leaf extract and its applications, belonging to the field of cosmetic raw material extraction technology. This method, through a complex enzymatic pretreatment, three-stage specific fermentation, and ultrafiltration purification process, produces a mulberry leaf extract that is non-irritating to the skin, exhibits good safety, high bioavailability, and excellent skin penetration, demonstrating significant effects in enhancing the skin barrier, moisturizing, and reducing wrinkles.

The application belongs to the field of fluorescent probes, and discloses a kind of fluorescent probe for monitoring dynamic change of hydrogen peroxide in different subcellular organelles, preparation method and application thereof, the probe is with flavonol as parent nucleus, and hydrogen peroxide ratio type fluorescent probe PML is targeted to lysosome, and hydrogen peroxide ratio type fluorescent probe PZD is targeted to lipid droplet.The application also provides the preparation method and application of the probe.The probe provided by the application has novel structure, simple synthesis method, good recognition effect on hydrogen peroxide, especially hydrogen peroxide in subcellular organelles, fast response speed, high sensitivity, reliable inspection result, good biocompatibility, subcellular organelle positioning function, so that they can be used for monitoring hydrogen peroxide in intracellular microenvironment, and it has great significance to apply probe technology to practical related pathological model to develop the mechanism of hydrogen peroxide in its pathology, especially in the process of ferroptosis.