Strategies to convert organic fluorophores into red/near-infrared emitting analogues and their utilization in bioimaging probes

M Dai, YJ Yang, S Sarkar, KH Ahn - Chemical Society Reviews, 2023 - pubs.rsc.org
Organic fluorophores aided by current microscopy imaging modalities are essential for
studying biological systems. Recently, red/near-infrared emitting fluorophores have attracted …

Activatable Probes for Ratiometric Imaging of Endogenous Biomarkers In Vivo

Q Fu, X Yang, M Wang, K Zhu, Y Wang, J Song - ACS nano, 2024 - ACS Publications
Dynamic variations in the concentration and abnormal distribution of endogenous
biomarkers are strongly associated with multiple physiological and pathological states …

Conformation of the Ester Group Governs the Photophysics of Highly Polarized Benzo[g]coumarins

K Szychta, B Koszarna, M Banasiewicz, A Sobolewski… - JACS Au, 2023 - ACS Publications
Photosensitizers that display “unusual” emission from upper electronically excited states
offer possibilities for initiating higher-energy processes than what the governing Kasha's rule …

Interactive Twin Intramolecular Hydrogen Bonds Enable Bright, S‐Blue Emissive, Environment‐Insensitive Single‐Benzene Fluorophores

S Sarkar, A Shil, YW Jun, YJ Yang… - Advanced Functional …, 2023 - Wiley Online Library
Small‐molecule dyes that emit blue fluorescence, particularly those that emit in the S‐blue
region, are limited in number. Functionalization of benzene with electron‐donating and …

Rapid point-of-care quantification of human serum albumin in urine based on ratiometric fluorescence signaling driven by intramolecular H-bonding

S Sarkar, A Shil, YL Jung, S Singha, KH Ahn - ACS sensors, 2022 - ACS Publications
Human serum albumin exerts multifunctions, such as maintaining the oncotic pressure of
plasma, carrying hydrophobic molecules, and acting as the most important antioxidant in the …

Cell-Membrane-Localizing Fluorescence Probes for Aminopeptidase N

YJ Yang, M Dai, KH Ahn - ACS sensors, 2023 - ACS Publications
Aminopeptidase N (APN), a transmembrane ectoenzyme, plays multifunctional roles in cell
survival and migration, angiogenesis, blood pressure regulation, and viral uptake …

Rationally designed two-photon ratiometric elastase probe for investigating inflammatory bowel disease

S Sarkar, A Shil, M Nandy, S Singha, YJ Reo… - Analytical …, 2022 - ACS Publications
Elastase, a serine protease, plays important roles in our body in food digestion and defence
against pathogens. Particularly, the elastase present in neutrophils is directly associated …

A General Strategy Toward pH‐Resistant Phenolic Fluorophores for High‐Fidelity Sensing and Bioimaging Applications

S Sarkar, A Shil, S Maity, YL Jung, M Dai… - Angewandte Chemie …, 2023 - Wiley Online Library
Aryl alcohol‐type or phenolic fluorophores offer diverse opportunities for develo**
bioimaging agents and fluorescence probes. Due to the inherently acidic hydroxyl …

Fluorescence imaging of mitochondrial DNA base excision repair reveals dynamics of oxidative stress responses

YW Jun, E Albarran, DL Wilson, J Ding… - Angewandte …, 2022 - Wiley Online Library
Mitochondrial function in cells declines with aging and with neurodegeneration, due in large
part to accumulated mutations in mitochondrial DNA (mtDNA) that arise from deficient DNA …

Nad (p) h quinone oxidoreductase-1 in organ and tumor tissues: Distinct activity levels observed with a benzo-rosol-based dual-excitation and dual-emission probe

YJ Yang, M Dai, YJ Reo, CW Song, S Sarkar… - Analytical …, 2021 - ACS Publications
NAD (P) H quinone oxidoreductase-1 (NQO1), a protective enzyme against cellular
oxidative stress, is expressed abnormally high in solid tumors and thus recognized as a …