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题目:
Nitrogen and sulfur co-doped chiral carbon quantum dots with independent photoluminescence and chirality
 
 
作者:
Lulu Hu, Yue Sun, Yunjie Zhou, Liang Bai, Yalin Zhang, Mumei Han, Hui Huang*, Yang Liu* and Zhenhui Kang*
 
 
单位:
Jiangsu Key Laboratory for Carbon-based Functional Materials and Devices Institute of Functional Nano & Soft Materials (FUNSOM) Soochow University Suzhou 215123, China.
 
 
摘要:
Chiral nanostructures have aroused extensive interest as components for chiral applications. Carbon quantum dots (CQDs) with superior properties including low toxicity and good biocompatibility can render the field with more potential biological applications in bioimaging, biosensor and drug delivery. Here, we report the fabrication of nitrogen and sulfur co-doped chiral CQDs (L-/D-CQDs) with strong symmetrical circular dichroism (CD) signals at about 212 and 240 nm. These chiral CQDs exhibit strong photoluminescence (PL) emission (at 460 nm) and outstanding enantioselective electrochemical recognition ability. A series of experiments further confirm that these chiral CQDs possess independent PL and chiral properties. With temperature increasing, PL is quenched with good linear correlation of 0.992, while the CD signals remain almost the same. On the other hand, the PL of L- or D-CQDs responses no difference toward small chiral molecules detection with right or opposite configuration. In addition, the L- or D-CQDs show the similar PL properties excited with circularly polarized light (CPL) regardless of its right or left handedness.
 
 
影响因子:
4.532
 
 
分区情况:
2区
 
 
链接: 


 

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