Easy synthesis of highly fluorescent carbon quantum dots from gelatin and their luminescent properties and applications

被引：571

作者：

Liang, Qinghua ^{[1
]}

Ma, Wangjing ^{[1
]}

Shi, Yao ^{[1
]}

Li, Zhi ^{[1
]}

Yang, Xinming ^{[1
]}

机构：

[1] Chinese Acad Sci, Tech Inst Phys & Chem, Beijing 100190, Peoples R China

来源：

CARBON | 2013年 / 60卷

基金：

中国国家自然科学基金;

关键词：

GREEN SYNTHESIS; UP-CONVERSION; NANODOTS;

D O I：

10.1016/j.carbon.2013.04.055

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A simple approach for the synthesis of fluorescent carbon dots (CQDs) has been developed by the hydrothermal treatment of gelatin in the presence only pure water. The as-synthesized CQDs were found to emit blue photoluminescence (PL) with a maximum quantum yield of 31.6%. Meanwhile, the CQDs exhibit excitation-dependent, pH-sensitive and up-converted PL properties. Importantly, these CQDs are demonstrated to be excellent bioimaging agents and fluorescent ink due to their stable emission, well dispersibility, low toxicity, long emission life time, and good compatibility with cells and macromolecules. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：421 / 428

页数：8

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