首页|Waterproof Perovskite Quantum Dots for In-vivo Photoluminescence Bioimaging

Waterproof Perovskite Quantum Dots for In-vivo Photoluminescence Bioimaging

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Perovskite quantum dots(PQDs)have demonstrated great promise in bioimaging applications owing to their outstanding photophysical properties.Nonetheless,their practicality is seriously limited by the instability of PQDs against moisture.Here we develop a post-synthetic ligand exchange strategy to construct silica-coated PQD(PQD@SiO2)nanocrystals,which results in the simultaneous improvement of photoluminescence efficiency and moisture stability.More importantly,compared to the classical in-situ ligand exchange method of fabricating PQD@SiO2,the issues of chemical etching and resultant photoluminescence degradation are judiciously overcome.Employing the proposed PQD@SiO2,we showcase their robust usefulness in labeling chlorella,paving the way for PQD-based in-vivo photoluminescence bioimaging methodology.

PerovskiteQuantum dotPhotoluminescenceStabilityBioimaging

JIAO Ziyue、WANG Xinli、GAO Jie、HUANG Xiao、WANG Yi

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Key Laboratory of Advanced Light Conversion Materials and Biophotonics,School of Chemistry and Life Resources,Renmin University of China,Beijing 100872,P.R.China

National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaBeijing Natural Science Foundation,ChinaResearch Funds of Renmin University of China

223731142210309622273119223200822XNKJ08

2024

10.1007/s40242-024-4152-z

高等学校化学研究(英文版)
吉林大学

高等学校化学研究(英文版)

CSTPCD
影响因子：0.871
ISSN：1005-9040
年,卷(期)：2024.40(5)