Tailored Structure and Antibacterial Properties of Silica-Coated Silver Nanoplates by Pulsed Laser Irradiation

Emi Takeda, Wei Xu, Mitsuhiro Terakawa, Takuro Niidome

研究成果: Article査読

抄録

We coated triangular-shaped silver nanoparticles, a type of anisotropic nanoplate (NPL), with silica (i.e., prepared Ag@SiO2 NPLs). When we irradiated Ag@SiO2 NPLs with nanosecond-pulsed laser light for 10 s, the triangular shape changed to spherical because of the photothermal effect. A high laser power exposed the silver core, and the particles exhibited strong antimicrobial activity. In contrast, at a moderate laser power, the silica layer crystallized, and the particles’ antimicrobial activity decreased. Thus, a combination of Ag@SiO2 NPLs and an appropriately tuned power of pulsed laser irradiation facilitated a decreased or an increased antimicrobial activity.

本文言語English
ページ(範囲)7251-7256
ページ数6
ジャーナルACS Omega
7
8
DOI
出版ステータスPublished - 2022 3月 1

ASJC Scopus subject areas

  • 化学 (全般)
  • 化学工学(全般)

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