Biomimetic Preparation and Dual-Color Bioimaging of Fluorescent Silicon Nanoparticles

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• 作者：Sicong Wu ; Yiling Zhong ; Yanfeng Zhou ; Bin Song ; Binbin Chu ; Xiaoyuan Ji ; Yanyan Wu ; Yuanyuan Su ; Yao He
• 刊名：Journal of the American Chemical Society
• 出版年：2015
• 出版时间：November 25, 2015
• 年：2015
• 卷：137
• 期：46
• 页码：14726-14732
• 全文大小：540K
• ISSN：1520-5126

文摘

Fluorescent silicon nanoparticles (SiNPs), as the most important zero-dimensional silicon nanostructures, hold high promise for long-awaited silicon-based optic applications. There currently remain major challenges for the green, inexpensive, and mass production of fluorescent SiNPs, resulting in difficulties in sufficiently exploiting the properties of these remarkable materials. Here, we show that fluorescent small-sized (鈭?.8 nm) SiNPs can be produced through biomimetic synthesis in rapid (10 min), low-cost, and environmentally benign manners. The as-prepared SiNPs simultaneously feature bright fluorescence (quantum yield (QY), 鈭?5鈥?0%), narrow emission spectral width (full width at half-maximum (fwhm), 鈭?0 nm), and nontoxicity, making them as high-quality fluorescent probes for biological imaging in vitro and in vivo.