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 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.
CINTRA CNRS/NTU/THALES, UMI 3288, Research Techno Plaza, 50 Nanyang Drive, Border X Block, Singapore, 637553, Singapore.|School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore, 639798, Singapore.
Shuwen
S
Zeng
Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore.
Kandammathe Valiyaveedu
KV
Sreekanth
Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore.
Jingzhi
J
Shang
Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore.
Ting
T
Yu
The Polymeric Biomaterials Lab, Feng Chia University, Taichung, 40724, Taiwan.
Chih-Kuang
CK
Chen
School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore, 639798, Singapore.
Feng
F
Yin
CINTRA CNRS/NTU/THALES, UMI 3288, Research Techno Plaza, 50 Nanyang Drive, Border X Block, Singapore, 637553, Singapore.|XLIM UMR CNRS 7252, Université de Limoges/CNRS, Limoges, 87060, France.
Dominique
D
Baillargeat
CINTRA CNRS/NTU/THALES, UMI 3288, Research Techno Plaza, 50 Nanyang Drive, Border X Block, Singapore, 637553, Singapore.|Institut d'Electronique, de Microélectronique et de Nanotechnologie (IEMN), CNRS UMR 8520 - Université de Lille 1, 59650, Villeneuve d'Ascq, France.
Philippe
P
Coquet
Department of Electronic Engineering, The Chinese University of Hong Kong, Hong Kong, 999077.
Ho-Pui
HP
Ho
Aix Marseille University, CNRS, LP3 UMR 7341, Campus de Luminy, 163 Avenue de Luminy, Case 917, 13288, Marseille cedex 9, France.
Andrei V
AV
Kabashin
CINTRA CNRS/NTU/THALES, UMI 3288, Research Techno Plaza, 50 Nanyang Drive, Border X Block, Singapore, 637553, Singapore.|School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore, 639798, Singapore.
Ken-Tye
KT
Yong
D004277:DNA, Single-Stranded / Q000032:analysis; D055590:Electromagnetic Phenomena; D006046:Gold / Q000737:chemistry*; D006108:Graphite / Q000737:chemistry*; D020349:Surface Plasmon Resonance; D013499:Surface Properties
D004277:DNA, Single-Stranded; D006046:Gold; D006108:Graphite
biosensors; metasurfaces; plasmonic sensing; surface plasmon polaritons