The selective detection of Fe3+ ions using citrate-capped gold nanoparticles.
Anal Biochem
; 637: 114453, 2022 01 15.
Article
em En
| MEDLINE
| ID: mdl-34785195
ABSTRACT
Citrate is a ubiquitous biological molecule that functions as Fe3+ chelators in some bacteria and the blood plasma of humans. Inspired by the strong affinity between citrate and Fe3+, a colorimetric Fe3+ probe based on citrate-capped AuNPs without any additional modification was designed. Citrate-capped AuNPs with a diameter of 22 nm were applied to detect Fe3+ without other reagents' assistance. This easily-prepared and low-cost colorimetric sensor exhibited good selectivity towards Fe3+ among common metal ions, a good linear relationship in the range of 0.1-0.8 µM of Fe3+ and quick response time of 10 min.
Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Ácido Cítrico
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Nanopartículas Metálicas
/
Ouro
/
Ferro
Tipo de estudo:
Diagnostic_studies
Limite:
Humans
Idioma:
En
Ano de publicação:
2022
Tipo de documento:
Article