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Graphene quantum dot gold nanocomposite for drug-free antibacterial wound treatment
News1 July 2026

Graphene quantum dot gold nanocomposite for drug-free antibacterial wound treatment

Researchers at Gannan Medical University and Shanghai University developed a gold nanoparticle–graphene oxide quantum dot (AuNPs/GOQDs) Schottky junction nanocomposite that achieved over 97% bacterial eradication in vitro and approximately 99% wound closure in mice within 9 days under 460 nm LED irradiation. The work advances graphene quantum dot applications by demonstrating that pairing GOQDs with AuNPs suppresses charge recombination to boost reactive oxygen species output while simultaneously enhancing photothermal conversion, offering a drug-free pathway to address multidrug-resistant infections.