期刊
IEEE SENSORS JOURNAL
卷 21, 期 9, 页码 10595-10602出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JSEN.2021.3060965
关键词
Mercury (metals); Sensors; Vibrations; Nanoparticles; Lakes; Metals; Graphene; Gold nanoparticles; graphene quantum dots; Hg² ⁺ detection; visual sensing
资金
- Gazi University Projects of Scientific Investigation [05/2017-09]
A novel visual sensing platform for the detection of mercury (II) ion (Hg2+) was developed in this study using a graphene quantum dots functionalized gold nanoparticles nanocomposite system. The platform achieved selective, sensitive, and rapid sensing of Hg2+ through the prevention of aggregation of AuNPs functionalized with GQDs in the presence of Hg2+.
Owing to their detection performance without the use of any instruments, visual sensing based on gold nanoparticles has become important and attractive for a wide range of applications in various fields, especially in sensing systems. In this study, a novel visual sensing platform for the detection of mercury (II) ion (Hg2+) was developed by using a graphene quantum dots functionalized gold nanoparticles nanocomposite system. To achieve the goal of selective, sensitive, and rapid sensing of Hg2+, gold nanoparticles (AuNPs) were combined with graphene quantum dots (GQDs). GQDs was assembled on AuNPs due to the strong interaction with the terminal amino groups of GQDs. A new procedure for the selective and sensitive detection of Hg2+ has been unveiled based on the prevention of aggregation of AuNPs functionalized with GQDs in the presence of analytes (i.e. Hg2+).
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