Iodine-mediated etching of triangular gold nanoplates for colorimetric sensing of copper ion and aptasensing of chloramphenicol

Chia Chen Chang, Guoqing Wang, Tohru Takarada, Mizuo Maeda

研究成果: ジャーナルへの寄稿記事

24 引用 (Scopus)

抄録

A colorimetric method for fast, simple, and selective detection of Cu2+ was developed using I-mediated etching of triangular gold nanoplates (AuNPLs). The method was based on our finding that Cu2+ efficiently promoted this etching in the presence of SCN-. The etching process was accompanied by a dramatic color change from blue to red, allowing for visual and spectroscopic detection of Cu2+ with detection limits of 10 and 1 μM, respectively. When molecular recognition by a DNA aptamer was incorporated into this method, visual detection of chloramphenicol was also achieved with a detection limit of 5 μM.

元の言語英語
ページ(範囲)34518-34525
ページ数8
ジャーナルACS Applied Materials and Interfaces
9
発行部数39
DOI
出版物ステータス出版済み - 1 1 2017

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Chloramphenicol
Iodine
Gold
Copper
Etching
Ions
Nucleotide Aptamers
Molecular recognition
DNA
Color

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

これを引用

Iodine-mediated etching of triangular gold nanoplates for colorimetric sensing of copper ion and aptasensing of chloramphenicol. / Chang, Chia Chen; Wang, Guoqing; Takarada, Tohru; Maeda, Mizuo.

:: ACS Applied Materials and Interfaces, 巻 9, 番号 39, 01.01.2017, p. 34518-34525.

研究成果: ジャーナルへの寄稿記事

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AU - Maeda, Mizuo

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