| Literature DB >> 25534763 |
Xinyi Zhang1, Yuanhui Zheng, Xin Liu, Wei Lu, Jiyan Dai, Dang Yuan Lei, Douglas R MacFarlane.
Abstract
Hierarchical porous plasmonic metamaterials consisting of periodic nanoholes with tunable diameter and uniformly distributed mesopores over the bulk are developed as a new class of 3D surface-enhanced Raman spectroscopy (SERS) substrates. This multiscale architecture not only facilitates efficient cascaded electromagnetic enhancement but also provides an enormous number of Raman-active binding sites, exhibiting excellent reproducibility and ultrasensitive detection of aromatic molecules down to 10(-13) M.Entities:
Keywords: electromagnetic fields; hierarchical porous metamaterials; liquid-crystal-templating; localized surface plasmons; surface-enhanced Raman spectroscopy
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Year: 2014 PMID: 25534763 DOI: 10.1002/adma.201404107
Source DB: PubMed Journal: Adv Mater ISSN: 0935-9648 Impact factor: 30.849