| abstract |
The invention discloses a near-infrared carbon dot/molybdenum disulfide composite material and an application thereof, belonging to the technical field of biological nanomaterials. The invention uses amino nitrogen source, carboxyl carbon source and copper-containing compound as raw materials, dimethyl sulfoxide as solvent, and obtains copper-doped near-infrared carbon dots capable of photothermal and photodynamic dual antibacterial through solvothermal one-step reaction; then, Under certain conditions, quaternary ammonium salts were modified on the surface of copper-doped near-infrared carbon dots to obtain modified copper-doped near-infrared carbon dots with photothermal, photodynamic, and quaternary ammonium salt multiple antibacterial properties. Finally, the quaternary ammonium salts were modified The copper-doped near-infrared carbon dots are combined with the modified molybdenum disulfide through electrostatic adsorption to obtain a near-infrared carbon dot/molybdenum disulfide composite material with multiple antibacterial properties with excellent biocompatibility and efficient bactericidal properties. The preparation method of the composite material is simple and convenient, and does not require expensive consumables. The obtained composite material has good biocompatibility and absorption in the near-infrared region, and can be used in the fields of bioimaging and multiple synergistic antibacterials. |