PUBLICATION

A novel 2-aminophenalenone-based fluorescent probe designed for monitoring H2O2 for in vitro and in vivo bioimaging

Authors
Saygili, E., Ersoz-Gulseven, E., Kıbrıs, E., Cakan-Akdogan, G., Ucuncu, M.
ID
ZDB-PUB-240120-8
Date
2024
Source
Talanta   271: 125669125669 (Journal)
Registered Authors
Cakan-Akdogan, Gülcin
Keywords
Aminophenalenone, Fluorescent probes, Hydrogen peroxide, Intracellular, Zebrafish
MeSH Terms
  • Animals
  • Fluorescent Dyes*
  • Hydrogen Peroxide*
  • Oxidative Stress
  • Reactive Oxygen Species
  • Zebrafish
PubMed
38241925 Full text @ Talanta
Abstract
A significant compound in living organisms, hydrogen peroxide (H2O2) plays a dual role as a signalling molecule in cellular communication and as a pivotal biomarker in assessing disease and oxidative stress. Thus, the detection of abnormal changes in H2O2 levels is essential to understanding its function and involvement in biological systems. The growing demand to meet the specific needs for applications, particularly in biological systems, has sharpened focus on highly sensitive, highly selective molecular sensors and, in turn, heightened interest in these diagnostic tools with innovative designs. In our study, 2-aminophenalenone (2-AP) was used for the first time as a fluorophore in a fluorescent probe. The 2-APB molecule obtained from the reaction of 2-AP with 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl) benzyl chloroformate exhibited a highly selective and sensitive (i.e. 62 nM) detection profile for H2O2 compared with the other reactive oxygen species, anions, and metal cations. Moreover, offering naked-eye detection in aqueous solutions, 2-APB demonstrated excellent sensing performance, detection and real-time monitoring in relation to exogenous H2O2 in cells and endogenous H2O2 in zebrafish embryos.
Genes / Markers
Figures
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Antibodies
Orthology
Engineered Foreign Genes
Mapping