Streptavidin and gold nanoparticles-based dual signal amplification for sensitive magnetoelastic sensing of mercury using a specific aptamer probe
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- 作者：Yan-Qin Huanga ; 1Author Vitae ; Ji-Cheng Yina ; b ; 1Author Vitae ; Yong-Sheng Wanga ; yongsheng.w@tom.com" class="auth_mail" title="E-mail the corresponding authorAuthor Vitae ; Xi-Lin XiaocAuthor Vitae ; Bin ZhouaAuthor Vitae ; Jin-Hua XueaAuthor Vitae ; Xian TangaAuthor Vitae ; Xiao-Feng WangaAuthor Vitae ; Yu-Feng ZhuaAuthor Vitae ; Si-Han ChenaAuthor Vitae
- 关键词：Wireless magnetoelastic sensor ; Mercury(II) specific aptamer probe ; Graphene oxide ; Streptavidin ; Gold nanoparticles
- 刊名：Sensors & Actuators: B. Chemical
- 出版年：2016
- 出版时间：1 November 2016
- 年：2016
- 卷：235
- 期：Complete
- 页码：507-514
- 全文大小：1739 K
文摘
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A dual signal amplification strategy was proposed for wireless sensing of mercury.
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The method exhibits a high sensitivity to Hg2+ with a detection limit of 0.885 nM.
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No direct physical connection between sensor and detector was required.
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The low material cost and small sensor size are of great advantage for Hg2+ assay.