文献类型：期刊文献

英文题名：A fluorometric and colorimetric dual-mode sensor based on nitrogen and iron co-doped graphene quantum dots for detection of ferric ions in biological fluids and cellular imaging

作者：Gao, Xue Xia[1] Zhou, Xi[1,2] Ma, Yu Feng[3] Wang, Chun Peng[1,2] Chu, Fu Xiang[1,2]

第一作者：Gao, Xue Xia

通信作者：Zhou, X[1];Chu, FX[1];Zhou, X[2];Chu, FX[2]|[a0005adfced0a4ac3a671]周希;

机构：[1]Chinese Acad Forestry, Natl Engn Lab Biomass Chem Utilizat, Inst Chem Ind Forestry Prod,Key Lab Biomass Energ, Key & Open Lab Forestry Chem Engn,State Forestry, Nanjing 210042, Jiangsu, Peoples R China;[2]Chinese Acad Forestry, Res Inst Forestry New Technol, Beijing 100091, Peoples R China;[3]Nanjing Forestry Univ, Coinnovat Ctr Efficient Proc & Utilizat Forest R, Nanjing 210037, Jiangsu, Peoples R China

年份：2018

卷号：42

期号：18

起止页码：14751-14756

外文期刊名：NEW JOURNAL OF CHEMISTRY

收录：;Scopus(收录号：2-s2.0-85053683395);WOS:【SCI-EXPANDED(收录号:WOS:000445219300099)】；

基金：This work was supported by Fundamental Research Funds of Research Institute of Forest New Technology, CAF (CAFYBB2017SY033).

语种：英文

摘要：N, Fe co-doped graphene quantum dots (N, Fe-GQDs) with excellent fluorescence performance were prepared by a simple one-pot hydrothermal method. During this process a dual doping strategy with chelated metal ions in combination with nitrogen passivation was developed. With this strategy, introducing Fe and retaining more oxygen-containing groups by chelation, in conjunction with N passivation, led to a dramatic enhancement of photoluminescence for N, Fe-GQDs. Furthermore, a fluorometric and colorimetric dual mode nanosensor based on the N, Fe-GQDs was prepared for effective and selective detecting of Fe3+ ions. More significantly, it was found that the as-prepared N, Fe-GQDs can be applied to detection of Fe3+ ions in biological samples and cellular imaging, which has a huge potential for utilization in practical applications.