Research Article www.acsami.org
Hierarchical Nanogaps within Bioscaffold Arrays as a HighPerformance SERS Substrate for Animal Virus Biosensing Feng Shao,† Zhicheng Lu,† Chen Liu,† Heyou Han,*,† Kun Chen,† Wentao Li,‡ Qigai He,‡ Hui Peng,† and Juanni Chen† †
State Key Laboratory of Agricultural Microbiology, College of Science, Huazhong Agricultural University, Wuhan 430070, China State Key Laboratory of Agricultural Microbiology, College of Animal Science and Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
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S Supporting Information *
ABSTRACT: A three-dimensional (3D) biomimetic SERS substrate with hierarchical nanogaps was formed on the bioscaffold arrays of cicada wings by one-step and reagents-free ion-sputtering techniques. This approach requires a minimal fabrication effort and cost and offers Ag nanoislands and Ag nanoflowers with four types of nanogaps (
