▎ 摘　　要

NOVELTY - Synergistic antibacterial surface, comprises glass substrate and polymer coating; it has a multi-level rough structure, and is a bionic superhydrophobic surface with tapered micro-pillar array; the polymer coating is polydimethylsiloxane and the polymer coating is in the shape of a tapered array; the tapered array is a regular tapered micro-pillar structure with a micrometer scale, which is engraved by laser, after the etching treatment, the surface of the tapered micro-pillars is distributed with rough nanostructures. USE - The synergistic antibacterial surface is useful in antibacterial adhesion and photothermal synergistic sterilization (claimed). ADVANTAGE - The synergistic antibacterial surface exhibits excellent synergistic antibacterial functions, high liquid repellency against bacterial adhesion and enhanced photothermal bactericidal activity; the synergistic antibacterial surface doped with graphene destroy adherent bacteria through the photothermal effect. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing synergistic antibacterial surface, comprising mixing polydimethylsiloxane prepolymer, iron oxide magnetic particles and multilayer graphene as precursor liquid, uniformly coating precursor liquid on surface by spin coating process, placing glass substrate surface of copper mesh in a neodymium magnet environment with surface magnetic field strength of 0.3-0.6 T, driving by external magnetic field, generating uniform and orderly tapered micro-pillar array along the direction of the magnetic field, and curing by infrared light irradiation, etching the tapered micro-pillar array by laser, and peeling off the copper mesh to obtain synergistic antibacterial surface; the parameters in the laser etching includes the laser wavelength is 760-1080 nm, and the average power is 8-15 W.