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题名: Gold Nanoparticles dotted Reduction Graphene Oxide Nanocomposite Based Electrochemical Aptasensor for Selective, Rapid, Sensitive and Congener-Specific PCB77 Detection
作者: Wu, Lidong1;  Lu, Xianbo2;  Fu, Xiaochen1;  Wu, Lingxia2;  Liu, Huan1
刊名: SCIENTIFIC REPORTS
发表日期: 2017-07-12
DOI: 10.1038/s41598-017-05352-7
卷: 7
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology
类目[WOS]: Multidisciplinary Sciences
研究领域[WOS]: Science & Technology - Other Topics
英文摘要: Gold nanoparticles (AuNP) dotted reduction graphene oxide (RGO-AuNP) is used as a platform for an aptamer biosensor to selectively detect 3,3'4,4'-polychlorinated biphenyls (PCB77). By anchoring aptamers onto the binding sites of RGO-AuNP and making use of the synergy effect of RGO and AuNP, the RGO-AuNP based biosensor exhibits superior analytical performances to AuNP based biosensor in terms of sensitivity and repeatability. The sensitivity of RGO-AuNP based aptamers (RGO-AuNP-Ap) biosensor (226.8 mu A cm(-2)) is nearly two times higher than that of Au based biosensors (AuNP-Ap/Au electrode, 147.2 mu A cm(-2)). The RGO-AuNP-Ap/Au biosensor demonstrated a linear response for PCB77 concentrations between 1 pg L-1 and 10 mu g L-1, with a low limit of detection (LOD) of 0.1 pg L-1. The superb LOD satisfies the exposure thresholds (uncontaminated water < 0.1 ng L-1) set out by International Agency for Research on Cancer (IARC) and the Environmental Protection Agency (EPA). The proposed biosensor can be a powerful tool for rapid, sensitive and selective detection of PCBs on site.
关键词[WOS]: POLYCHLORINATED-BIPHENYLS PCBS ;  BIOSENSOR ;  APTAMER ;  SURFACE ;  CHLORAMPHENICOL ;  ATHEROSCLEROSIS ;  TOXICITY ;  SERUM
语种: 英语
WOS记录号: WOS:000405423000009
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/152071
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Fishery Sci, Key Lab Control Qual & Safety Aquat Prod, Minisrty Agr, Beijing 100141, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Key Lab Separat Sci Analyt Chem, Dalian 116023, Peoples R China

Recommended Citation:
Wu, Lidong,Lu, Xianbo,Fu, Xiaochen,et al. Gold Nanoparticles dotted Reduction Graphene Oxide Nanocomposite Based Electrochemical Aptasensor for Selective, Rapid, Sensitive and Congener-Specific PCB77 Detection[J]. SCIENTIFIC REPORTS,2017,7.
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