Visible light-triggered fluorescence and pH modulation using metastable-state photoacids and BODIPY. Issue 42 (20th August 2018)

• Record Type: Journal Article
• Authors: Patel, Parth K.; Arias, Juan E.; Gongora, Renan S.; Hernandez, Florencio E.; Moncomble, Aurélien; Aloïse, Stéphane; Chumbimuni-Torres, Karin Y.
• Is Part Of: Physical chemistry chemical physics. Volume 20:Issue 42(2018)
• Page Start: 26804
• Page End: 26808
• Publication Date: 2018-08-20
• Subjects: Chemistry, Physical and theoretical -- Periodicals; 541.3
• DOI: 10.1039/c8cp03977a
• Languages: English
• ISSNs: 1463-9076

Abstract

Abstract : Small changes in the pH gradient play a critical role in numerous biological and chemical pathways. 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.