期刊
RSC ADVANCES
卷 6, 期 19, 页码 15854-15860出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ra25613e
关键词
-
资金
- NSFC [21574018, 51433003]
- Science Technology Program of Jilin Province [20130204025GX]
- Jilin Provincial Education Department [543]
- Jilin Provincial Key Laboratory of Micro-Nano Functional Materials (Northeast Normal University)
A novel kind of flower-like Pd NPs with strong absorption in the near-infrared (NIR) region was successfully synthesized by using a seed-mediated method in aqueous solutions. The biocompatibilty of the prepared flower-like Pd NPs was improved by coating them with polypyrrole (PPy). In comparison to the pure NPs, the PPy-coated flower-like Pd NPs (Pd NPs@PPy) exhibited stronger NIR absorption, higher structural stability and lower cytotoxicity. Moreover, the photothermal conversion efficiency (eta) of the Pd NPs@PPy was effectively tuned via controllably changing the thickness of the PPy shell. A h of 96.0% at 808 nm was reached when the Pd NPs@PPy with a shell of 7.0 nm was prepared. This h was higher than that of the bare flower-like Pd NPs due to the absorption of PPy in the NIR regions. In vitro photothermal heating of Pd NPs@PPy in the presence of HeLa cells led to cell destruction after 10 min of laser irradiation at a low power density of 3 W cm(-2). The Pd NPs@PPy shows a potential application as a promising photothermal nanoplatform for cancer therapy.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据