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The selective detection of Fe3+ ions using citrate-capped gold nanoparticles.
Meng, Xinhua; Lei, Bijing; Qi, Na; Wang, Bochu.
Afiliação
  • Meng X; Key Laboratory of Biorheological Science and Technology (Chongqing University), Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400030, China.
  • Lei B; Key Laboratory of Biorheological Science and Technology (Chongqing University), Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400030, China.
  • Qi N; Key Laboratory of Biorheological Science and Technology (Chongqing University), Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400030, China. Electronic address: qina@cqu.edu.cn.
  • Wang B; Key Laboratory of Biorheological Science and Technology (Chongqing University), Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400030, China. Electronic address: wangbc2000@126.com.
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.
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Texto completo: 1 Base de dados: MEDLINE Assunto principal: Ácido Cítrico / Nanopartículas Metálicas / Ouro / Ferro Tipo de estudo: Diagnostic_studies Limite: Humans Idioma: En Ano de publicação: 2022 Tipo de documento: Article
Texto completo
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XML
PubMed Links
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Texto completo: 1 Base de dados: MEDLINE Assunto principal: Ácido Cítrico / Nanopartículas Metálicas / Ouro / Ferro Tipo de estudo: Diagnostic_studies Limite: Humans Idioma: En Ano de publicação: 2022 Tipo de documento: Article