期刊论文

Feng, Guoqiang

英文

Sensors and Actuators B-Chemical

0925-4005

2020

309

127796

10.1016/j.snb.2020.127796

National Natural Science Foundation of ChinaNational Natural Science Foundation of China [21672080]; 111 ProjectMinistry of Education, China - 111 Project [B17019]; Fundamental Research Funds for the Central UniversitiesFundamental Research Funds for the Central Universities [2019YBZZ035, CCNU19TS007, 2019CXZZ019]

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Ferrous ions (Fe2+) play an irreplaceable role in living animals. However, the lack of effective Fe2+ probes has seriously hindered the further study of Fe2+ in vivo. An easily obtained reaction-based fluorescent probe DCI-Fe (II) for real-time detection and imaging of Fe2+ both in cells and in vivo was reported in this work. DCI-Fe(II) shows distinct changes in color and highly selective turn-on near-infrared (NIR) fluorescence (similar to 120-fold enhancement at 700 nm) for Fe2+ with a rapid response (5 min), high sensitivity (51 nM of detection limit), and a marked Stokes shift (195 nm). Mo...