Evidence map›Paper›PMID 30820671›Full record

ArticleMikrochimica acta2019

A novel signal amplification strategy based on the use of copper nanoclusters for ratiometric fluorimetric determination of o-phenylenediamine.

Yujun Ma, Ying Yu, Bixia Lin, Li Zhang, Yujuan Cao, Manli Guo

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Article in Mikrochimica acta, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

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0cells of the map it votes in
4citing papers in PubMed
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1 · What the graph read from it

What it found

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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3 · Its place in the literature

Who cites it

4 citing papers in PubMed.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Yujun MaSchool of Chemistry and Environment, Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, South China Normal University, No. 378 Waihuan West Road, University City, Guangzhou, 510006, Guangdong, China.
Ying YuSchool of Chemistry and Environment, Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, South China Normal University, No. 378 Waihuan West Road, University City, Guangzhou, 510006, Guangdong, China. yuyhs@scnu.edu.cn.ORCID http://orcid.org/0000-0002-0369-2394
Bixia LinSchool of Chemistry and Environment, Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, South China Normal University, No. 378 Waihuan West Road, University City, Guangzhou, 510006, Guangdong, China. linbixiaxia@126.com.
Li ZhangSchool of Chemistry and Environment, Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, South China Normal University, No. 378 Waihuan West Road, University City, Guangzhou, 510006, Guangdong, China.
Yujuan CaoSchool of Chemistry and Environment, Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, South China Normal University, No. 378 Waihuan West Road, University City, Guangzhou, 510006, Guangdong, China.
Manli GuoSchool of Chemistry and Environment, Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, South China Normal University, No. 378 Waihuan West Road, University City, Guangzhou, 510006, Guangdong, China.

Funding

Guangzhou Science, Technology and Innovation Commission 15180001National Natural Science Foundation of China 21275056National Natural Science Foundation of China 21575043National Natural Science Foundation of China 21605052National Natural Science Foundation of China 51478196
6 · The paper itself

Abstract

Copper nanoclusters (CuNCs) were synthesized starting from glutathione and copper(II) nitrate. They show blue fluorescence peaking at 432 nm when excited at 334 nm. In the presence of o-phenylenediamine (OPD), the blue fluorescence is decreased, but a yellow fluorescence appears with a peak at 557 nm. UV-visible absorptiometry, fluorometry and fluorescence lifetime measurements were used to show that OPD is oxidized by the small fraction of copper(II) ions present in the CuNCs to form the oxidized form of o-phenylenediamine (oxOPD) which displays weak yellow fluorescence, while the blue fluorescence decreases. The ratio of fluorescences at 557 and 432 nm increases linearly in the 0.15 to 110 μg·L

Indexed as

Copper ionDynamic quenchingFluorescence resonance energy transferGlutathioneMetal nanoclusterOxidation reactionOxidized form of o-phenylenediamineRatiometric nanoprobe

Identifiers

PMID30820671

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