期刊
JOURNAL OF COLLOID AND INTERFACE SCIENCE
卷 599, 期 -, 页码 436-442出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2021.04.100
关键词
Co-assembly; Tripeptide; Gold nanorod; Core-shell sphere; Hg2+ adsorption
资金
- National Natural Science Foundation of China [21902089]
- Natural Science Foundation of Shandong Province [ZR2018BB044]
- China Postdoctoral Science Foundation [2018M632663]
- Fundamental Research Funds of Shandong University [11190077614116]
The study presents a facile and effective co-assembly strategy for constructing tripeptide-coated gold nanorods, resulting in highly controllable peptide/Au nanoparticle hybrids. These hybrids exhibit good performance in adsorbing Hg2+, indicating their promising applications in environmental remediation and other fields.
The construction of peptide and metal nanoparticles hybrid is attractive to explore their synergistic properties and applications extensively. However, it remains a challenge to fabricate a well-defined and size-controllable short peptide/Au nanoparticles hybrid. Here, we report a facile and flexible co-assembly strategy for the construction of tripeptide coated Au nanorods (AuNRs). The tripeptide (Phe-Phe-Cys, FFC) grows via covalently crosslinking to form spheres. The size of the core@shell nanospheres can be controlled by modulating the amount or size of AuNRs. Especially, the concentration of AuNRs fixes the amount of seeds, which further affect the local concentration of FFC on the surface of AuNRs seed, leading to a narrower diameter of hybrid compared to FFC spheres. Moreover, owing to their synergistic effects, this hybrid exhibits a good adsorption capacity of Hg2+ from aqueous solutions by electrostatic interaction and forming into Au/Hg amalgam. This strategy could be extended to the fabrication of other biomolecules and metal nanoparticle hybrids with diverse functions. (C) 2021 Elsevier Inc. All rights reserved.
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