Photothermal conversion of SiO₂@Au nanoparticles mediated by surface morphology of gold cluster layer.

ABSTRACT: Photothermal effects in SiO₂@Au core-shell nanoparticles have demonstrated great potential in various applications for drug delivery, thermo-photovoltaics and photothermal cancer therapy, etc. However, the photothermal conversion of SiO₂@Au nanoparticles partially covered by disconnected gold clusters has rarely been investigated systematically. Here, we control the surface morphology of gold clusters on the photothermal conversion performance of SiO₂@Au core-shell nanoparticles by means of chemically adjusting the synthesis parameters, including amounts of gold salts, pH value and reducing agent. The macroscopic variations of the photothermal heating of different nanoparticle dispersions are significantly influenced by the nanoscale differences of g

SUBMITTER: Yang L 

PROVIDER: S-EPMC9056695 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature