| Literature DB >> 17425344 |
Chuanmin Ruan1, Gyula Eres, Wei Wang, Zhenyu Zhang, Baohua Gu.
Abstract
Highly ordered gold nanopillar arrays were fabricated using anodized aluminum oxide (AAO) templates. Nanopillars with a dimension of 110 +/- 15 nm in vertical height and 75 +/- 10 nm in base diameter were formed with a density of 150 microm(-2). The ordered nanopillar arrays give reproducible surface-enhanced Raman scattering (SERS) at a detection limit of 10(-8) M using thionine as probing molecules. The enhancement by the Au nanopillar arrays was comparable with or better than that of dispersed gold nanoparticle SERS substrates. This work demonstrates a new technique for producing highly ordered and reproducible SERS substrates potentially applicable for chemical and biological assay.Entities:
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Year: 2007 PMID: 17425344 DOI: 10.1021/la0636356
Source DB: PubMed Journal: Langmuir ISSN: 0743-7463 Impact factor: 3.882