Evidence map›Paper›PMID 31617023›Full record

ArticleMikrochimica acta2019

Assay of 1-hydroxypyrene via aggregation-induced quenching of the fluorescence of protamine-modified gold nanoclusters and 9-hydroxyphenanthrene-based sensitization.

Jin-Hua Xue, Ling Liu, Yong-Sheng Wang, Jia-Qian Li, Mei Li, Yue-Ning Qu, Le Li

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In one paragraph

Article in Mikrochimica acta, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

7 authors.

Jin-Hua XueCollege of Public Health, University of South China, Hengyang, 421001, People's Republic of China.
Ling LiuCollege of Public Health, University of South China, Hengyang, 421001, People's Republic of China.
Yong-Sheng WangCollege of Public Health, University of South China, Hengyang, 421001, People's Republic of China. yongsheng.w@tom.com.ORCID http://orcid.org/0000-0001-5833-9275
Jia-Qian LiCollege of Public Health, University of South China, Hengyang, 421001, People's Republic of China.
Mei LiCollege of Public Health, University of South China, Hengyang, 421001, People's Republic of China.
Yue-Ning QuCollege of Public Health, University of South China, Hengyang, 421001, People's Republic of China.
Le LiCollege of Public Health, University of South China, Hengyang, 421001, People's Republic of China. usclile@126.com.

Funding

The National Natural Science Foundation of China No. 11405081The National Natural Science Foundation of China No. 21177052
6 · The paper itself

Abstract

This work describes a method for the determination of 1-hydroxypyrene (OH-Py) via aggregation-induced quenching of the emission of protamine-coated gold nanoclusters using 9-hydroxyphenanthrene (OH-Phe) as a sensitizer to boost the emission efficiency of nanoprobe. Under optimum conditions, the drop in fluorescence intensity at excitation/emission wavelengths of 300/596 nm is proportional to the concentrations of OH-Py in the range from 1.0 to 65 nM. The relative standard deviations are 4.2, 2.4 and 1.9% (for n = 11) at concentration levels of 8.0, 32 and 48 nM of OH-Py, respectively. The detection limit is 0.3 nM which is much lower than that of some previously reported methods. The recoveries from urine samples spiked with OH-Py ranged between 94.4 and 98.8%. Graphical abstract 1-Hydroxypyrene (OH-Py) can trigger the aggregation of protamine-gold nanoclusters (PRT-AuNCs), resulting in the emission quenching of PRT-AuNCs. 9-Hydroxyphenanthrene (OH-Phe) can boost the emission efficiency of nanoprobe. Thereby, a highly sensitive assay of OH-Py was established.

Indexed as

Electrostatic interactionsHigh quantum efficiencyHuman urine samplesHydrogen bondingHydrophobic interactionNanoprobePhotoluminescence quenchingResonance energy transfer

Identifiers

PMID31617023

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