Carbon dots with hydrogen bond-controlled aggregation behavior

Shuai Chang; Bin-Bin Chen; Ya-Ting Gao; Yi-Han Zheng; Ji-Fen Shi; Ruo-Can Qian; Da-Wei Li

doi:10.1039/d2an01858f

Carbon dots with hydrogen bond-controlled aggregation behavior

Analyst. 2023 Jan 31;148(3):507-511. doi: 10.1039/d2an01858f.

Authors

Shuai Chang¹, Bin-Bin Chen^{1

2}, Ya-Ting Gao¹, Yi-Han Zheng¹, Ji-Fen Shi¹, Ruo-Can Qian¹, Da-Wei Li¹

Affiliations

¹ Key Laboratory for Advanced Materials, Shanghai Key Laboratory of Functional Materials Chemistry, Frontiers Science Center for Materiobiology & Dynamic Chemistry, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai 200237, PR China. chenbinbin@cuhk.edu.cn.
² School of Science and Engineering, Shenzhen Institute of Aggregate Science and Technology, The Chinese University of Hong Kong, Shenzhen, 2001 Longxiang Boulevard, Longgang District, Shenzhen City, Guangdong 518172, China.

PMID: 36594781
DOI: 10.1039/d2an01858f

Abstract

Here, hydrophilic carbon dots (H-CDs) are prepared by a facile room temperature method. The strength of hydrogen bonds can be controlled by introducing proton and aprotic solvents, respectively, so as to realize the tunable aggregation state of H-CDs. Because of the ultrasensitive response to dimethyl sulfoxide (DMSO), H-CDs can serve as optical probes for detecting DMSO in a linear range of 0.005% to 0.75% and with a detection limit of 0.001%.