| Literature DB >> 26349431 |
Shuwen Zeng1,2, Kandammathe Valiyaveedu Sreekanth3, Jingzhi Shang3, Ting Yu3, Chih-Kuang Chen4, Feng Yin2, Dominique Baillargeat1,5, Philippe Coquet1,6, Ho-Pui Ho7, Andrei V Kabashin8, Ken-Tye Yong1,2.
Abstract
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.Entities:
Keywords: biosensors; metasurfaces; plasmonic sensing; surface plasmon polaritons
Mesh:
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Year: 2015 PMID: 26349431 DOI: 10.1002/adma.201501754
Source DB: PubMed Journal: Adv Mater ISSN: 0935-9648 Impact factor: 30.849