新型炭材料2013,Vol.28Issue(4):307-312,6.
碳量子点的制备及与牛血清蛋白的相互作用
Preparation of carbon quantum dots in wood charcoal and their interaction with bovine serum albumin
摘要
Abstract
Carbon quantum dots (CQDs) are a new fluorescent material with stable fluorescence,low toxicity and many other superior properties that make their applications in biology possible.CQDs in wood charcoal were created by a 5N HNO3 solution using three different methods,reflux,microwave and ultrasound methods.Factors that determine the fluorescence quantum yield were examined and preparation conditions were optimized.Results indicated that the fluorescence quantum yield of CQDs prepared by the reflux method was highest among the three methods.The CQDs prepared by this method were modified by poly (ethylene glycol)2000 to increase the fluorescent lifetime and the quantum yield.The reaction of the modified CQDs with bovine serum albumin was investigated by ultraviolet absorption spectrometry and fluorescence spectrometry,which revealed a static quenching behavior.关键词
碳量子点/制备/荧光/牛血清白蛋白Key words
Carbon quantum dots/ Synthesis/ Fluorescence/ Bovine serum albumin分类
通用工业技术引用本文复制引用
吕华,单晓辉,陈娇,蒋瑀涵,陈建秋,严拯宇..碳量子点的制备及与牛血清蛋白的相互作用[J].新型炭材料,2013,28(4):307-312,6.基金项目
国家自然科学基金(30873197) (30873197)
大学生创新基金(201210316099).National Nature Science Foundation (30873197) (201210316099)
Fundamental Research Funds for the Central Universities (201210316099). (201210316099)