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乌头酸基多色荧光碳点的制备及其分析应用
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作者单位
赵凤姣,千佳丽,孙圆圆,王兆彦,周雷 1.兰州大学化学化工学院2.兰州大学药学院 
基金项目:国家自然科学基金项目(21675069,21527808)
中文摘要:以乌头酸为前驱体,组合掺杂试剂乙二胺和尿素,以水热法和微波法分别制得4种光学性质优良的荧光碳点。荧光光谱显示,所制得的碳点中3种发射蓝色荧光,1种发射黄色荧光。实验选定蓝色荧光碳点中量子产率最高的AA&EDA-HT-CDs(绝对量子产率57%)和黄色荧光碳点AA&Urea-MW-CDs(绝对量子产率44%)为研究对象,对其粒径分布、元素组成以及表面基团等进行了表征。进一步研究了AA&EDA-HT-CDs和AA&Urea-MW-CDs对金属离子的响应特性和细胞毒性,并将其成功用于细胞成像。
中文关键词:乌头酸  碳点  波长调控  荧光传感  细胞成像
 
Fabrication of Aconitic Acid Based Carbon Dots with Multicolor Photolu minescence and Their Applications in Analysis
Abstract:In this work,four types of water soluble carbon dots(CDs) with excellent optical properties were fabricated through hydrothermal(HT) or microwave(MW) assisted approach,using aconitic acid(AA) as the carbon precursor,and ethylenediamine(EDA) or urea as the co doping reagents.Fluorescence spectroscopy showed that among these CDs,three emitted blue fluorescence and one emitted yellow fluorescence.Subsequently,one blue fluorescent AA&EDA-HT-CDs with the highest absolute quantum yield of 57% and yellow fluorescent AA&Urea-MW-CDs with an absolute quantum yield of 44% were selected,and then a series of detailed characterizations were conducted for the systematical investigation on their size distribution,chemical composition and surface groups,etc.Furthermore,the responses of as prepared CDs toward metal ions as well as their cytotoxicity were evaluated.Finally,the prepared AA derived CDs were successfully applied in cellular bioimaging.
Key Words:aconitic acid  carbon dots  emission control  fluorescent sensor  cell imaging
引用本文:赵凤姣,千佳丽,孙圆圆,王兆彦,周雷.乌头酸基多色荧光碳点的制备及其分析应用[J].分析测试学报,2018,37(10):1230-1237.
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