In situ synthesis of NIR-light emitting carbon dots derived from spinach for bio-imaging applications

作者：Liping Li, Ruiping Zhang, Chunxiang Lü, Jinghua Sun, Lingjie Wang, Botao Qu, Tingting Li, Yaodong Liu, Sijin Li · 发表于：Journal of Materials Chemistry B · 年份：2017 · DOI：10.1039/c7tb00634a · 被引用次数：148 · 研究领域：Carbon and Quantum Dots Applications、Nanocluster Synthesis and Applications、Quantum Dots Synthesis And Properties

Near infrared (NIR)-light emitting fluorescent probes have attracted extensive research attention in the bioimaging field due to their deep tissue penetration, minimal auto-fluorescence and lower emission light damage to bio-tissues. Herein, we designed and prepared NIR-light emitting CDs (R-CDs) from spinach by a one-step solvothermal method. The R-CDs exhibited good water solubility, a maximum fluorescence emission peak at 680 nm, a high quantum yield of 15.34%, remarkable photo-stability and resistance to metal ions in a body-simulating environment, excellent compatibility, negligible toxicity, and superior labelling capability in vitro and in vivo. These findings significantly highlight the design of NIR-light emitting CDs and exploit their bio-imaging applications.