期刊
JOURNAL OF MATERIALS CHEMISTRY A
卷 11, 期 6, 页码 2679-2689出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d2ta09462b
关键词
-
Polarity is an important microenvironment parameter that plays a crucial role in physiological and pathological processes. A highly-fluorescent red-emitting carbon dots (CDs) based fluorescent sensor was developed for real-time sensing of polarity in solutions and living cells. The sensor, with excellent photostability and photobleaching resistance, high fluorescence quantum yield, and biocompatibility, successfully monitored and imaged polarity changes in mitochondria and lysosomes, providing a promising tool for selective, sensitive, rapid, and real-time visualization of polarity in living cells.
Polarity is an integral microenvironment parameter, which is crucial for establishing and reflecting a large number of sophisticated physiological functions and pathological effects. Monitoring changes in intracellular polarity is of great scientific and practical significance. In this work, we present a highly-fluorescent red-emitting carbon dots (CDs) based fluorescent sensor for the specific real-time sensing of polarity in solutions and living cells. Both the fluorescence and absorption wavelengths displayed a large redshift to the red emission region with increasing solvent polarity. Inspired by the excellent photostability and photobleaching resistance, high fluorescence quantum yield, superior interference immunity, negligible cytotoxicity and significant biocompatibility, the sensor has been successfully implemented as an effective diagnostic candidate for monitoring and imaging the polarity changes in mitochondria and lysosomes. This work can not only present effective strategies for the design and synthesis of red/near-infrared (NIR) emissive CDs but also afford promising tools for the selective, sensitive, rapid, real-time visualizing detection of polarity in living cells, as a consequence accelerating a better understanding and diagnosis of polarity-related physiological and pathological processes and diseases.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据