A dual experimental–theoretical perspective on ESPT photoacids and their challenges ahead

N Sülzner, G Jung, P Nuernberger - Chemical Science, 2025 - pubs.rsc.org
Photoacids undergo an increase in acidity upon electronic excitation, enabling excited-state
proton transfer (ESPT) reactions. A multitude of compounds that allow ESPT has been …

Live cell microscopy: a physical chemistry approach

S Nandi, S Ghosh, K Bhattacharyya - The Journal of Physical …, 2018 - ACS Publications
Probing dynamics of intracellular components using physical chemistry techniques is a
remarkable bottom-up approach for understanding the structures and functions of a …

Excited state proton transfer in the lysosome of live lung cells: normal and cancer cells

R Chowdhury, A Saha, AK Mandal, B Jana… - The Journal of …, 2015 - ACS Publications
Dynamics of excited state proton transfer (ESPT) in the lysosome region of live lung cells
(normal and cancer) is studied by picosecond time-resolved confocal microscopy. For this …

Time Evolution of Local pH Around a Photo‐Acid in Water and a Polymer Hydrogel: Time Resolved Fluorescence Spectroscopy of Pyranine

S Chakraborty, S Nandi, K Bhattacharyya… - …, 2019 - Wiley Online Library
In this work, we propose a new analysis of the time resolved emission spectra of a photo‐
acid, HA, pyranine (8‐hydroxypyrene‐1, 3, 6‐trisulphonic acid, HPTS) based on time …

Excited-state proton transfer from the photoacid 2-naphthol-8-sulfonate to acetonitrile/water mixtures

O Gajst, L Pinto da Silva… - The Journal of …, 2018 - ACS Publications
Steady-state and time-resolved fluorescence techniques were used to study excited-state
proton transfer (ESPT) to water of the reversible photoacid 2-naphthol-8-sulfonate (2N8S) in …

Cucurbit [8] uril-based supramolecular fluorescent biomaterials for cytotoxicity and imaging studies of kidney cells

H Xiao, X Yang, L Yang, D Yang, Y Luo… - Frontiers in …, 2022 - frontiersin.org
An accurate diagnosis of acute kidney injury (AKI) at the early stage is critical to not only
allow preventative treatments in time but also forecast probable medication toxicity for …

Anomalous proton transfer of a photoacid HPTS in nonaqueous reverse micelles

T Jang, S Lee, Y Pang - Physical Chemistry Chemical Physics, 2024 - pubs.rsc.org
The proton transfer reaction is one of the fundamental chemical reactions where the reaction
dynamics strongly depend on solvent properties such as acidity or basicity. A photoacid 8 …

Wet interface of benzylhexadecyldimethylammonium chloride reverse micelle revealed by excited state proton transfer of a localized probe

A Phukon, N Barman, K Sahu - Langmuir, 2015 - ACS Publications
Excited state proton transfer (ESPT) of an anionic photoacid 8-hydroxypyrene-1, 3, 6-
trisulfonic acid (HPTS or pyranine) has been studied inside a cationic reverse micelle (RM) …

Beating Heart of Cytochrome c Oxidase: The Shared Proton of Heme a3 Propionates

J Dragelj, MA Mroginski, EW Knapp - The Journal of Physical …, 2021 - ACS Publications
Cytochrome c oxidase (C c O) pumps protons from the N-side to the P-side and consumes
electrons from the P-side of the mitochondrial membrane driven by energy gained from …

Excited‐State Dynamics of a Photoacid: A Potential Probe for Recognizing Transition from Lamellar to Nonlamellar Inverted Structures of Liposome based …

G Ghosh, DS Roy, R Ghosh, D Mukherjee… - …, 2024 - Wiley Online Library
Liposomes of a cationic lipid dioctadecyldimethylammonium bromide (DODAB) are efficient
nanocarriers of nucleic acids. Incorporation of a neutral lipid monoolein (MO) in excess …