NDLI: Phase-transfer-assisted synthesis of cysteine-Ag nanoparticles/graphene oxide nanocomposite and its enhanced performance in antibiosis and biosensing

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Phase-transfer-assisted synthesis of cysteine-Ag nanoparticles/graphene oxide nanocomposite and its enhanced performance in antibiosis and biosensing

Content Provider	Scilit
Author	Wang, Zhizhan Li, Fei Zhang, Li Qian, Junzhi Cao, Shaokui
Copyright Year	2020
Description	Journal: Nanotechnology We report a facile, rapid, phase-transfer-assisted process to prepare Ag nanoparticles (AgNP) loaded graphene oxide (GO) nanocomposite, by using cysteine as a high-effective phase transfer agent for AgNP movement from organic phase to water and subsequently as a covalent linkage for immobilizing AgNP on GO. The obtained c-Ag/GO nanocomposite possesses high nanoparticle loading efficiency, small particle size and monodispersity, strong binding force, and good water dispersibility, which endow it a great potential in a variety of bio-applications. As the illustrations of application, c-Ag/GO and its derivatives c-Ag/rGO were used for antibiosis and biosensing respectively. The c-Ag/GO composite shows the high antibacterial activity against E. coli with a minimal bactericidal concentration of 10 μg/mL. And the biosensor based on c-Ag/rGO exhibits the rapid and sensitive response for uric acid detection with a detection limit of 0.025 μM, a sensitivity of 5.76 μA/mM, and wide linear range of 0.025~2250 μM. The comparative analysis with relevant nanocomposites also reveals the precedence of c-Ag/GO in these applications, thus highlighting the advantages of the developed preparation method for c-Ag/GO.
Related Links	https://iopscience.iop.org/article/10.1088/1361-6528/aba05c/pdf
ISSN	09574484
e-ISSN	13616528
DOI	10.1088/1361-6528/aba05c
Journal	Nanotechnology
Issue Number	45
Volume Number	31
Language	English
Publisher	IOP Publishing
Publisher Date	2020-06-26
Access Restriction	Open
Subject Keyword	Journal: Nanotechnology Silver Nanoparticle
Content Type	Text
Resource Type	Article
Subject	Chemistry Nanoscience and Nanotechnology Mechanics of Materials Mechanical Engineering Bioengineering Electrical and Electronic Engineering

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