Trypsin-Stabilized Fluorescent Gold Nanocluster for Sensitive and Selective Hg2+ Detection
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- KAWASAKI Hideya
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University
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- YOSHIMURA Kouta
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University
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- HAMAGUCHI Kenji
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University
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- ARAKAWA Ryuichi
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University
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We report on trypsin-stabilized fluorescent gold nanoclusters (Au NCs) for the sensitive and selective detection of Hg2+ ions. The Au NCs have an average size of 1 nm and show a red emission at 645 nm. The photostable properties of the trypsin-stabilized Au NCs were examined, and their photochemical stability was found to be similar to that of CdSe quantum dots. The fluorescence was particularly quenched by Hg2+, and therefore the Au NCs can be used as fluorescent sensors for sensitive and selective Hg2+ detection to a detection limit of 50 ± 10 nM and the quantitative detection of Hg2+ in wide and low concentration range of 50 – 600 nM.
収録刊行物
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- Analytical Sciences
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Analytical Sciences 27 (6), 591-, 2011
社団法人 日本分析化学会
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詳細情報 詳細情報について
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- CRID
- 1390001204260916096
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- NII論文ID
- 130004827152
- 10028289091
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- NII書誌ID
- AA10500785
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- COI
- 1:STN:280:DC%2BC3MrpvVGltA%3D%3D
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- ISSN
- 13482246
- 09106340
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- HANDLE
- 10112/5942
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- NDL書誌ID
- 11106248
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- PubMed
- 21666355
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- Web Site
- https://kansai-u.repo.nii.ac.jp/records/11451
- http://id.ndl.go.jp/bib/11106248
- https://ndlsearch.ndl.go.jp/books/R000000004-I11106248
- https://link.springer.com/content/pdf/10.2116/analsci.27.591.pdf
- https://link.springer.com/article/10.2116/analsci.27.591/fulltext.html
- http://www.jstage.jst.go.jp/article/analsci/27/6/27_6_591/_pdf
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- 本文言語コード
- en
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