Biomimetic synthesis of Ag-coated glasswing butterfly arrays as ultra-sensitive SERS substrates for efficient trace detection of pesticides

• Guochao Shi,
• Mingli Wang,
• Yanying Zhu,
• Yuhong Wang,
• Xiaoya Yan,
• Xin Sun,
• Haijun Xu and
• Wanli Ma

Beilstein J. Nanotechnol. 2019, 10, 578–588, doi:10.3762/bjnano.10.59

• . China Faculty of science, Beijing University of Chemical Technology, Beijing 100029, P.R. China Department of Mathematics, NC State University, Raleigh, NC 276968205, USA 10.3762/bjnano.10.59 Abstract In this work, we report a biomimetic synthesis route of 3D Ag nanofilm/glasswing butterfly wing

• , showing its great potential application in biochemical sensing and food security. Keywords: Ag nanofilm; glasswing butterfly; pesticide; surface-enhanced Raman scattering (SERS); Introduction Surface-enhanced Raman scattering (SERS), an extension of conventional Raman spectroscopy, is a powerful

• previous reports [29][30]. We adopt a highly efficient route (as shown in Figure 1) using biomimetic synthesis to fabricate 3D Ag nanofilm/glasswing butterfly wing (Ag-G.b.) hybrids as SERS substrates. The wings of the glasswing butterfly (Haetera piera) have an interesting nanostructure that can serve as