A novel coumarin-TPA based fluorescent probe for turn-on hypochlorite detection and lipid-droplet-polarity bioimaging in cancer cells.

Abstract

A novel fluorescent compound, named C-TPA, based on coumarin (acceptor) and triphenylamine (donor) was facilely designed and fabricated through a one-step Suzuki coupling reaction. As a donor group, triphenylamine can efficiently enhance the fluorescence intensity and photostability of coumarin, and thus improve the detection efficiency. C-TPA-S was obtained from C-TPA treated with Lawesson's reagent and C-TPA-S can be used for the turn-on detection of hypochlorite through oxidative desulfurization with a low detection limit of 0.12 μM. Moreover, the intramolecular charge transfer process between the donor and acceptor group endows C-TPA with solvatochromism property and makes C-TPA a good candidate for polarity detection. The C-TPA with bright green fluorescence was highly efficient for imaging the microenvironment of polarity both in living cells and tissues with high selectivity and photostability, which can be applied in the diagnosis for the cancer cells.

• Authors: Xuefeng Wang, Zhiming Gou, Jing-Jing Lv, Yujing Zuo
• Journal: Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy (Spectrochim Acta A Mol Biomol Spectrosc) Vol. 279 Pg. 121481 (Oct 15 2022) ISSN: 1873-3557 [Electronic] England
• PMID: 35691171 (Publication Type: Journal Article)
• Copyright: Copyright © 2022. Published by Elsevier B.V.

Chemical References

• Coumarins
• Fluorescent Dyes
• Lipids
• Hypochlorous Acid

Topics

• Coumarins
• Fluorescent Dyes
• Hypochlorous Acid
• Lipids
• Neoplasms (diagnostic imaging)