3results about How to "Suitable for large-scale synthesis" patented technology

This invention belongs to the field of biomedical materials and nanotechnology, specifically relating to the synthesis and application of a multifunctional mesoporous nanomaterial. The inventors synthesized a core-shell structured mesoporous nanoparticle using mesoporous silica nanoparticles and dopamine via emulsion epitaxy. The core of the core-shell structured mesoporous nanoparticle is S-nitrosoglutathione supported on mesoporous silica, and the outer shell is pentafluorophenyl chlorophyll supported on mesoporous polydopamine, forming MSN / G@mPDA / F nanoparticles. These nanoparticles rapidly increase in temperature to 45°C under 808 nm laser irradiation. o At temperatures above a certain temperature, S-nitrosoglutathione decomposes to produce nitric oxide. Further irradiation at 750 nm generates a large amount of reactive oxygen species, killing bacteria. This combination of photothermal and photodynamic therapy effectively inhibits bacterial growth. Therefore, this method exhibits excellent antibacterial effects and can play a role in the future treatment of bacterial infections.

The application discloses preparation and application of high-heat-resistance low-birefringence colorless polyimide film. Specifically, based on a fluorine-containing side biphenyl m-phenylenediamine, homopolymerization (or copolymerization) is carried out with commercial dianhydride, diamine and the like, and high-performance colorless polyimide (CPI) film is prepared through casting, heat treatment and other processes. The fluorine-containing side biphenyl m-phenylenediamine is synthesized through two steps from commercial raw materials through Suzuki coupling reaction and reduction reaction, and the fluorine-containing side biphenyl m-phenylenediamine can be efficiently synthesized. The CPI film material prepared in the application exhibits excellent high-heat-resistance, low-birefringence, high-optical-transparency, low-dielectric performance and the like, and has potential application in the fields of flexible liquid crystal, organic light-emitting diode display device, wearable equipment, intelligent vehicle window and the like. In addition, the synthesis of the fluorine-containing side biphenyl diamine is convenient, the route is simple, the reaction is efficient, and the fluorine-containing side biphenyl diamine is suitable for large-scale production.

This invention provides a method for preparing porous interconnected hollow carbon nanofiber membranes, belonging to the field of nanomaterial preparation technology. The method first uses a mixture of MOF and a polymer as a shell precursor solution, and SAN resin or PMMA as a core layer precursor solution. A mixed matrix membrane material is prepared through coaxial electrospinning and subsequent carbonization. In the mixed matrix membrane, the SAN resin or PMMA acts as a self-sacrificial template, undergoing carbonization and volatilization to induce the formation of hollow carbon nanofibers. Meanwhile, the MOF induces the formation of porous structures on the hollow carbon nanofibers through interfaces, interconnecting them via hollow channels. This method is simple to operate, streamlined, and can be mass-produced, possessing significant practical application value in the fields of energy catalysis and environmental protection.