Synthesis of Photothermally Stable Triangular Silver Nanoplates for SERS Applications, Photokilling of Bacteria,ChemNanoMat

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Synthesis of Photothermally Stable Triangular Silver Nanoplates for SERS Applications, Photokilling of Bacteria
ChemNanoMat ( IF 2.6 ) Pub Date : 2019-11-22 , DOI: 10.1002/cnma.201900603
Ranran Fan ₁ , Yushan Yang ₁ , Jin Xue ₁ , Fang Zhang ₁ , Jie Sun ₁ , Hui Xu ₂ , Tingting Jiang ₁

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We developed a facile seeded‐growth strategy to synthesize triangular silver nanoplates with enhanced photothermal stability, in which zwitterionic buffers, hydroquinone (HQ) served as shape‐directing, reducing agents, respectively. Compared to the Ag nanoplates synthesized by the thermal methods reported before, the Ag nanoplates prepared in this study still retained the sharp tips of nanoplates, maintained excellent near infra‐red (NIR) surface plasmon resonance (SPR) properties after repeated NIR irradiation. The enhanced photothermal stability could enable the as‐prepared Ag nanoplates serve as stable substrates for bacterial surface enhanced Raman scattering (SERS) applications. Meanwhile, the Ag nanoplates synthesized in this study also yielded a steady‐state photothermal conversion efficiency up to 40%, giving effective photothermal therapy (PTT) towards antibiotic resistant bacteria.

中文翻译：

用于SERS应用的光热稳定三角银纳米板的合成，细菌的光杀死作用

我们开发了一种简便的种子生长策略来合成具有增强的光热稳定性的三角形银纳米板，其中两性离子缓冲剂，氢醌（HQ）分别用作定向剂和还原剂。与通过以前报道的热方法合成的Ag纳米板相比，在本研究中制备的Ag纳米板仍然保留了纳米板的尖锐尖端，在重复NIR辐照后仍保持了出色的近红外（NIR）表面等离子体共振（SPR）特性。增强的光热稳定性可以使所制备的Ag纳米板成为细菌表面增强拉曼散射（SERS）应用的稳定底物。同时，在这项研究中合成的Ag纳米板还产生了高达40％的稳态光热转换效率，

更新日期：2019-11-22

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