“Turn-on” and pinhole-free ultrathin core–shell Au@SiO2 nanoparticle-based metal-enhanced fluorescent (MEF) chemodosimeter for Hg2+

Author:

Cui Ying12,Fan Shanji3,Zhai Yunran1,Liu Yingjie3,Li Junhua2,Hu Jiawen1,Wang Lijia4ORCID

Affiliation:

1. Hunan Key Laboratory of Two-Dimensional Materials, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China

2. Key Laboratory of Functional Metal-Organic Compounds of Hunan Province, College of Chemistry and Materials Science, Hengyang Normal University, Hengyang, 421001, PR China

3. Department of Breast and Thyroid Surgery, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang 421000, China

4. Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Children's Regional Medical Center, Hangzhou, Zhejiang 310052, China

Abstract

We constructed a distinct ‘‘turn-on’’ Au@SiO2 nanostructure for a metal-enhanced fluorescence system. The metal-enhanced fluorescence chemosensor shows high sensitivity and selectivity toward Hg2+ with a detection limit of 5 × 10−11 mol L−1.

Funder

Natural Science Foundation of Hunan Province

Natural Science Foundation of Zhejiang Province

Hengyang Normal University

Hunan Provincial Key Laboratory of Functional Metal-Organic Compounds

Medical Science and Technology Project of Zhejiang Province

Publisher

Royal Society of Chemistry (RSC)

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