Issue 42, 2018

Visible light-triggered fluorescence and pH modulation using metastable-state photoacids and BODIPY

Abstract

Small changes in the pH gradient play a critical role in numerous biological and chemical pathways. Systems capable of monitoring and regulating these changes with high sensitivity and minimum photo-fatigue are in demand. Herein, we propose a visible light-triggered molecular system that allows for reversible regulation of acidity and fluorescence. This robust bi-functional system opens a new horizon towards novel studies that rely on small changes in acid-mediated controlled processes with high sensitivity. The two photosensitive compounds employed, a metastable-state photoacid (mPAH) and a boron-dipyrromethene (BODIPY) derivative, allow for consistent modulation of both fluorescence (based on the working principle of the inner filter effect) and pH (around a magnitude) over multiple cycles.

Graphical abstract: Visible light-triggered fluorescence and pH modulation using metastable-state photoacids and BODIPY

Supplementary files

Article information

Article type
Communication
Submitted
22 jun 2018
Accepted
08 aug 2018
First published
08 aug 2018

Phys. Chem. Chem. Phys., 2018,20, 26804-26808

Visible light-triggered fluorescence and pH modulation using metastable-state photoacids and BODIPY

P. K. Patel, J. E. Arias, R. S. Gongora, F. E. Hernandez, A. Moncomble, S. Aloïse and K. Y. Chumbimuni-Torres, Phys. Chem. Chem. Phys., 2018, 20, 26804 DOI: 10.1039/C8CP03977A

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