Graphene-gold metasurface architectures for ultrasensitive plasmonic biosensing

Graphene-gold metasurface architectures for ultrasensitive plasmonic biosensing

Graphene–gold metasurface architectures that can provide significant gains in plasmonic detection sensitivity for trace-amount target analytes are reported. Benefiting from extreme phase singularities of reflected light induced by strong plasmon-mediated energy confinements, the metasurface demonstr...

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Bibliographic Details
Main Authors: Zeng, Shuwen, Sreekanth, Kandammathe Valiyaveedu, Shang, Jingzhi, Yu, Ting, Chen, Chih-Kuang, Yin, Feng, Baillargeat, Dominique, Coquet, Philippe, Ho, Ho-Pui, Kabashin, Andrei V., Yong, Ken-Tye
Other Authors: School of Electrical and Electronic Engineering
Format: Article
Language:English
Published: 2015
Online Access:https://hdl.handle.net/10356/100121
http://hdl.handle.net/10220/38683
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Institution: Nanyang Technological University
Language: English
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Summary:Graphene–gold metasurface architectures that can provide significant gains in plasmonic detection sensitivity for trace-amount target analytes are reported. Benefiting from extreme phase singularities of reflected light induced by strong plasmon-mediated energy confinements, the metasurface demonstrates a much-improved sensitivity to molecular bindings nearby and achieves an ultralow detection limit of 1 × 10−18 M for 7.3 kDa 24-mer single-stranded DNA.

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