|About this Abstract
||Materials Science & Technology 2012
||Bioinspired Materials Engineering
||Metallic Butterflies: Fabrication and Their Applications in Surface-Enhanced Raman Spectroscopy
||Jiajun Gu, Di Zhang, Shenmin Zhu, Chuanliang Feng, Huilan Su, Wang Zhang, Qinglei Liu
|On-Site Speaker (Planned)
175,000 species of butterflies and moths provide huge numbers of wing scales with 3D hierarchical sub-micrometer structures. In this presentation, we will demonstrate how these natural textures can be replicated in seven common metals via a simple chemical method. We applied a surface functionalization method combining a direct chemical deposition to conformally replicate the original morphologies of butterfly scales, with the compositions of the fabricated products changed to metals. Moreover, the Au butterfly wing scales exhibited excellent properties as surface-enhanced Raman scatting substrates, in terms of high-sensitivity (10^-13 M, R6G), high-reproducibility, and low cost. Such results could help bring high-quality and affordable SERS substrates as consumables for trace-amount chemical detection to ordinary laboratories across the world.
||Definite: A CD-only volume