Photothermal performance of plasmonic patch with gold nanoparticles embedded on polymer matrix

摘要: Under light irradiation, gold nanoparticles (AuNPs) reveal the surface plasmon feature, i.e., occurrence of collective excitation free electrons NPs. Plasmon relaxation, as well excitation, induced by absorption, could be used to increase local temperature via conversion heat. This photothermal effect can enhanced control morphology and structure NPs in near-infrared (NIR) region. Recently, use an NP-composited polymer a heating patch with good performance was suggested for biomedical applications. Herein, AuNPs embedded on polydimethylsiloxane (PDMS) films (Au-PDMS) were successfully prepared in-situ synthesis method without reducing agent. Their measured IR camera under 808 nm NIR mechanical stretching test Au-PDMS conducted investigate AuNPs’ density performance. The films, which reached 120 °C within 1 min, is also adjustable (strain change). due decrease widening interparticle distance between them.