详细信息
水热法一步合成氮掺杂碳点及其在Cu(Ⅱ)离子检测中的应用 被引量:6
One-Step Hydrothermal Synthesis of Nitrogen Doped Carbon Dots and Their Application in Cu(Ⅱ) Ion Detection
文献类型:期刊文献
中文题名:水热法一步合成氮掺杂碳点及其在Cu(Ⅱ)离子检测中的应用
英文题名:One-Step Hydrothermal Synthesis of Nitrogen Doped Carbon Dots and Their Application in Cu(Ⅱ) Ion Detection
作者:周希[1,2] 刘美红[1] 王春鹏[1,2] 储富祥[1,2]
第一作者:周希
机构:[1]中国林业科学研究院林产化学工业研究所;[2]中国林业科学研究院林业新技术研究所
年份:2018
卷号:81
期号:1
起止页码:65-69
中文期刊名:化学通报
外文期刊名:Chemistry
收录:CSTPCD;;Scopus;北大核心:【北大核心2017】;CSCD:【CSCD2017_2018】;
基金:中央级公益性科研院所基本科研业务费专项(CAFYBB2017ZX003);中国林科院林业新技术研究所基本科研业务费专项(CAFYBB2017SY033)资助
语种:中文
中文关键词:碳材料;荧光;猝灭;细胞毒性
外文关键词:Carbon materials, Fluorescence, Quenching, Cell toxicity
分类号:O614.121
摘要:采用水热法以聚乙烯亚胺为原料一步制备氮掺杂荧光碳量子点。紫外-可见吸收光谱、荧光光谱以及透射电镜显示,所制备的碳点荧光性能优异、分散性好、且无团聚现象。在0.1mol/L PBS溶液中,荧光碳点的荧光强度随着Cu(Ⅱ)浓度的增加逐渐减弱。该方法对Cu(Ⅱ)检测的线性范围为50~150μmol/L,检出限为10μmol/L。细胞毒性测试结果表明,不同浓度的碳点对细胞活性影响均较小,其细胞毒性低。以上结果说明该碳点能成功检测Cu(Ⅱ)且细胞毒性低,在生物传感方面有潜在应用价值。
The nitrogen doped carbon dots based on polyethyleneimine were prepared by one-step hydrothermal method. Ultraviolet-visible absorption, fluorescence spectra and transmission electron microscopy show that the carbon dots have excellent fluorescence performance and good dispersion. In 0. 1 mol/L PBS solution, the fluorescence intensity of carbon dots reduces as Cu( Ⅱ ) concentration increases gradually. The detection linear range of Cu( Ⅱ ) is 50 - 150 μmol/L with the detection limit of 10 μmol/L. Cytotoxicity test results show that different concentrations of the carbon dots all have low toxicity. The above results show that the carbon clots can successfully detect Cu( Ⅱ ) with low cytotoxicity, showing potential application in biological sensing. Keywords Carbon materials, Fluorescence, Quenching, Cell toxicity
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