Issue 14, 2015

Photoluminescence imaging of Zn2+ in living systems

Abstract

Zn2+ plays essential roles in various physiological processes in living systems, and the investigation of Zn2+ related physiology and pathology has attracted considerable interest. Because photoluminescence (PL) imaging possesses distinct advantages, such as high sensitivity and non-invasiveness, and excellent temporal and spatial resolution, it has become a powerful tool for the real time monitoring of Zn2+ distribution, uptake, and trafficking. Over the last two decades, great efforts have been devoted to PL Zn2+ imaging in living systems, which proved the Zn2+ fluctuations in physiological processes and the temporal-spatial distribution of labile Zn2+ as well as the localization of labile Zn2+ pools. Advances in PL techniques, such as fluorescence microscopy, confocal fluorescence microscopy, two photon fluorescence microscopy, lifetime based techniques and luminescence optical imaging systems, have made remarkable contributions in tackling major challenges in Zn2+ PL imaging. With the rational design and proper use of fluorescent sensors, Zn2+ imaging in various cell lines, organelles, tissues, organs and living animals has been realized, which was shown to be crucial in elucidating the biological and physiological roles of labile Zn2+.

Graphical abstract: Photoluminescence imaging of Zn2+ in living systems

Article information

Article type
Review Article
Submitted
03 Jän 2015
First published
09 Mär 2015

Chem. Soc. Rev., 2015,44, 4517-4546

Author version available

Photoluminescence imaging of Zn2+ in living systems

Y. Chen, Y. Bai, Z. Han, W. He and Z. Guo, Chem. Soc. Rev., 2015, 44, 4517 DOI: 10.1039/C5CS00005J

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