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Gold/SH-functionalized nanographene oxide/polyamidamine/poly(ethylene glycol) nanocomposites for enhanced non-enzymatic hydrogen peroxide detection
Hao, BJ; Song, T; Ye, M; Liu, XY; Qiu, JJ; Huang, XY; Lu, GL; Qian, WH
2020-11-07
Source PublicationBIOMATERIALS SCIENCE
ISSN2047-4830
Issue21Pages:6037
SubtypeArticle
AbstractHydrogen peroxide (H2O2) is an important mediator in biological medicine, disease diagnosis and environmental analyses and therefore it is essential to develop a detection approach for H2O2 in physical environments. Herein, we designed and prepared a series of AuNP-containing nanocomposites (AuNPs@NGO-PEG, AuNPs@G1-PAMAM-NGO-PEG and AuNPs@G3-PAMAM-NGO-PEG) for enhanced non-enzymatic H2O2 detection. We firstly demonstrated functionalized nanographene oxide (NGO) based materials, which combined advantages of biocompatible poly(ethylene glycol) (PEG), hyperbranched polyamidamine (PAMAM) dendrimer and thiol active site, as compatible platforms. Gold nanoparticles (AuNPs) were then aptly in situ grown on these functionalized NGO based materials via the reduction of HAuCl4 under mild conditions, i.e. AuNPs@NGO-PEG, AuNPs@G1-PAMAM-NGO-PEG and AuNPs@G3-PAMAM-NGO-PEG nanocomposites, which possess stable and uniform AuNPs standing on the functionalized NGO sheets. For H2O2 detection, these nanocomposites were cast on a glassy carbon electrode (GCE) conveniently, i.e. GCE/AuNPs@NGO-PEG, GCE/AuNPs@G1-PAMAM-NGO-PEG and GCE/AuNPs@G3-PAMAM-NGO-PEG. It is evident that these GCEs could be applied as efficient non-enzymatic H2O2 detectors resulting from the corresponding cyclic voltammetric curves and typical ready-state amperometric curves. GCE/AuNPs@G1-PAMAM-NGO-PEG exhibited the fastest electron transfer rate among these modified GCEs. We envisage that these GCEs could provide efficient sensors for H2O2 detection and a new strategy for sensor design.
DOI10.1039/d0bm01286f
WOS KeywordLAYERED DOUBLE HYDROXIDE ; GRAPHENE OXIDE ; ELECTROCHEMICAL DETECTION ; NANOPARTICLES ; GLUCOSE ; PERFORMANCE ; FABRICATION ; ELECTRODE ; REDUCTION ; IMMOBILIZATION
Language英语
WOS Research AreaMaterials Science
PublisherROYAL SOC CHEMISTRY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/27631
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Hao, BJ,Song, T,Ye, M,et al. Gold/SH-functionalized nanographene oxide/polyamidamine/poly(ethylene glycol) nanocomposites for enhanced non-enzymatic hydrogen peroxide detection[J]. BIOMATERIALS SCIENCE,2020(21):6037.
APA Hao, BJ.,Song, T.,Ye, M.,Liu, XY.,Qiu, JJ.,...&Qian, WH.(2020).Gold/SH-functionalized nanographene oxide/polyamidamine/poly(ethylene glycol) nanocomposites for enhanced non-enzymatic hydrogen peroxide detection.BIOMATERIALS SCIENCE(21),6037.
MLA Hao, BJ,et al."Gold/SH-functionalized nanographene oxide/polyamidamine/poly(ethylene glycol) nanocomposites for enhanced non-enzymatic hydrogen peroxide detection".BIOMATERIALS SCIENCE .21(2020):6037.
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