Reversibly Tuning Electrochemiluminescence with Stimulated Emission Route for Single-Cell Imaging

扫码查看

原文链接

NETL
NSTL
万方数据

外文摘要：Electrochemiluminescence(ECL)has established itself as an excellent transduction technique in biosensing and light-emitting device,while conventional ECL mechanism depending on spontaneous emission of luminophores lacks reversibility and tunable emission characters,limiting the universality of ECL technique in the fields of fundamental research and clinical applications.Here,we report the first observation of stimulated emission route in ECL and thus establish a reversible tuning ECL microscopy for single-cell imaging.This microscopy uses a focused red-shifted beam to transfer spontaneous ECL into stimulated ECL,which enables selective and reversible tuning of ECL emission from homogeneous solution,single particles,and single cells.After excluding other possible competitive routes,the stimulated ECL emission route is confirmed by a dual-objective system in which the suppressed spontaneous ECL is accompanied by the enhanced stimulated ECL.By incorporating a commercial donut-shaped beam,the sharpness of single-cell matrix adhesion is improved 2 to 3 times compared with the counterpart in confocal ECL mode.The successful establishment of this stimulated emission ECL will greatly advance the development of light-emitting device and super-resolution ECL microscopy.

作者：

Cheng Ma、Xiaodan Gou、Zejing Xing、Min-Xuan Wang、Wenlei Zhu、Qin Xu、Dechen Jiang、Jun-Jie Zhu

展开 >

作者单位：

School of Chemistry and Chemical Engineering,Yangzhou University,Yangzhou 225002,P.R.China

State Key Laboratory of Analytical Chemistry for Life Science,State Key Laboratory of Pollution Control and Resource Reuse,School of Chemistry and Chemical Engineering,School of the Environment,Nanjing University,Nanjing 210023,P.R.China

School of Chemistry and Chemical Engineering,Yangzhou University,Yangzhou,225002,PR China

出版年：

2024

DOI：

10.34133/research.0257

研究(英文)

CSTPCD

ISSN：

年,卷(期)：2024.2024(3)