Green synthesis of stable and biocompatible fluorescent carbon dots from peanut shells for multicolor living cell imaging. (21st December 2015)

• Record Type: Journal Article
• Authors: Xue, Mingyue; Zhan, Zhihua; Zou, Mengbing; Zhang, Liangliang; Zhao, Shulin
• Is Part Of: New journal of chemistry. Volume 40:Number 2(2016:Feb.)
• Page Start: 1698
• Page End: 1703
• Publication Date: 2015-12-21
• Subjects: Chemistry -- Periodicals; Chimie -- Périodiques; 540
• DOI: 10.1039/c5nj02181b
• Languages: English
• ISSNs: 1144-0546

Abstract

Abstract : Fluorescent carbon dots derived from peanut shells were prepared via a pyrolysis approach and used for living cell imaging. Abstract : A green approach for the synthesis of fluorescent carbon dots (C-dots) with a quantum yield of about 9.91% has been developed using peanut shells as a precursor. The C-dots were prepared via a simple pyrolysis of peanut shells. The obtained C-dots exhibit an excitation-dependent manner, excellent stability, high photostability, and good tolerance for pH, ionic strength and photobleaching. The cytotoxicity of the C-dots was also evaluated using HepG2 cells, and the cell viabilities were estimated to be greater than 90% upon addition of the C-dots over a wide concentration range from 0 to 1.2 mg mL −1 . Based on the abovementioned merits, we also applied the prepared C-dots as an effective fluorescent probe for multicolor living cell imaging.