A ratiometric fluorescence probe based on a novel recognition mechanism for monitoring endogenous hypochlorite in living cells.
Anal Chim Acta
; 1064: 87-93, 2019 Aug 08.
Article
em En
| MEDLINE
| ID: mdl-30982522
ABSTRACT
A ratiometric fluorescence probe (named ZOC) for the fast detection of HClO/ClO- was constructed by coumarin (donor) and pyridinium (acceptor) based on Forster resonance energy transfer (FRET) and intramolecular charge transfer (ICT) platform. ZOC possessed red emission signal (610â¯nm), large Stocks shift (190â¯nm), high energy transfer efficiency (95.3%), high selectivity and sensitivity, low detection limit (25â¯nM), wider detection range (from 25â¯nM to 30⯵M), rapid response (within 13â¯S), and good biocompatibility. It was very interesting that the recognition mechanism involved a new organic reaction in which olefin double bond reacted first with HClO/ClO- regioselectively, followed by cyclization. ZOC was successfully used to the real time detection of endogenous HClO/ClO- in RAW 264.7â¯cells.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Contexto em Saúde:
1_ASSA2030
Base de dados:
MEDLINE
Assunto principal:
Ácido Hipocloroso
/
Imagem Óptica
/
Corantes Fluorescentes
Limite:
Animals
Idioma:
En
Revista:
Anal Chim Acta
Ano de publicação:
2019
Tipo de documento:
Article