Dual-Phase Thermally Activated Delayed Fluorescence Luminogens: A Material for Time-Resolved Imaging Independent of Probe Pretreatment and Probe Concentration

被引：52

作者：

Li, Xuping ^{[1
,2
]}

Baryshnikov, Gleb ^{[3
]}

Ding, Longjiang ^{[4
]}

Bao, Xiaoyan ^{[2
]}

Li, Xin ^{[3
]}

Lu, Jianjun ^{[1
]}

Liu, Miaoqing ^{[1
]}

Shen, Shen ^{[2
]}

Luo, Mengkai ^{[2
]}

Zhang, Man ^{[2
]}

Agren, Hans ^{[3
,5
]}

Wang, Xudong ^{[4
]}

Zhu, Liangliang ^{[2
]}

机构：

[1] Taiyuan Univ Technol, Key Lab Coal Sci & Technol, Minist Educ & Shanxi Prov, Taiyuan 030024, Peoples R China

[2] Fudan Univ, State Key Lab Mol Engn Polymers, Dept Macromol Sci, Shanghai 200438, Peoples R China

[3] KTH Royal Inst Technol, Sch Biotechnol, Div Theoret Chem & Biol, S-10691 Stockholm, Sweden

[4] Fudan Univ, Dept Chem, Shanghai 200438, Peoples R China

[5] Henan Univ, Dept Chem, Coll Chem & Chem Engn, Kaifeng 475004, Henan, Peoples R China

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2020年 / 59卷 / 19期

关键词：

dual-phase emission; imaging agents; luminescence; self-assembly; thermally activated delayed fluorescence; AGGREGATION-INDUCED EMISSION; LIGHT-EMITTING-DIODES; EFFICIENCY; RIGIDITY; DESIGN; BRIGHT; DOTS;

D O I：

10.1002/anie.202000185

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Developing luminescent probes with long lifetime and high emission efficiency is essential for time-resolved imaging. However, the practical applications usually suffer from emission quenching of traditional luminogens in aggregated states, or from weak emission of aggregation-induced emission type luminogens in monomeric states. Herein, we overcome this dilemma by a rigid-and-flexible alternation design in donor-acceptor-donor skeletons, to achieve a thermally activated delayed fluorescence luminogen with high emission efficiency both in the monomeric state (quantum yield up to 35.3 %) and in the aggregated state (quantum yield up to 30.8 %). Such a dual-phase strong and long-lived emission allows a time-resolved luminescence imaging, with an efficiency independent of probe pretreatment and probe concentration. The findings open opportunities for developing luminescent probes with a usage in larger temporal and spatial scales.

引用

页码：7548 / 7554

页数：7

共 41 条

[41] STEADY-STATE AND TIME-RESOLVED FLUORESCENCE ANISOTROPY STUDY OF PHOSPHOLIPID MOLECULAR-MOTION IN THE GEL PHASE USING 1-PALMITOYL-2-[9-(2-ANTHRYL)-NONANOYL]-SN-GLYCERO-3-PHOSPHOCHOLINE AS PROBE
VINCENT, M
GALLAY, J
DEBONY, J
TOCANNE, JF
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