氧化石墨烯和石墨烯量子点的荧光及传感应用：综述
Fluorescence and Sensing Applications of Graphene Oxide and Graphene Quantum Dots: A Review.
作者信息
Zheng Peng, Wu Nianqiang
机构信息
Department of Mechanical and Aerospace Engineering, West Virginia University, PO Box 6106, Morgantown, WV, 26506, USA.
出版信息
Chem Asian J. 2017 Sep 19;12(18):2343-2353. doi: 10.1002/asia.201700814. Epub 2017 Aug 30.
Abstract
Graphene oxide and graphene quantum dots are attractive fluorophores that are inexpensive, nontoxic, photostable, water-soluble, biocompatible, and environmentally friendly. They find extensive applications in fluorescent biosensors and chemosensors, in which they serve as either fluorophores or quenchers. As fluorophores, they display tunable photoluminescence emission and the "giant red-edge effect". As quenchers, they exhibit a remarkable quenching efficiency through either electron transfer or Förster resonance energy transfer (FRET) process. In this review, the origin of fluorescence and the mechanism of excitation wavelength-dependent fluorescence of graphene oxide and graphene quantum dots are discussed. Sensor design strategies based on graphene oxide and graphene quantum dots are presented. The applications of these sensors in health care, the environment, agriculture, and food safety are highlighted.
摘要
氧化石墨烯和石墨烯量子点是具有吸引力的荧光团，它们价格低廉、无毒、光稳定、水溶性好、生物相容性佳且环境友好。它们在荧光生物传感器和化学传感器中有着广泛应用，在这些传感器中它们既可以作为荧光团，也可以作为猝灭剂。作为荧光团，它们表现出可调谐的光致发光发射和“巨大红边效应”。作为猝灭剂，它们通过电子转移或福斯特共振能量转移（FRET）过程表现出显著的猝灭效率。在这篇综述中，讨论了氧化石墨烯和石墨烯量子点荧光的起源以及激发波长依赖性荧光的机制。介绍了基于氧化石墨烯和石墨烯量子点的传感器设计策略。重点阐述了这些传感器在医疗保健、环境、农业和食品安全方面的应用。
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