title: Subtractive Structural Modification of Morpho Butterfly Wings.
abstract: Different from studies of butterfly wings through additive modification, this work for the first time studies the property change of butterfly wings through subtractive modification using oxygen plasma etching. The controlled modification of butterfly wings through such subtractive process results in gradual change of the optical properties, and helps the further understanding of structural optimization through natural evolution. The brilliant color of Morpho butterfly wings is originated from the hierarchical nanostructure on the wing scales. Such nanoarchitecture has attracted a lot of research effort, including the study of its optical properties, its potential use in sensing and infrared imaging, and also the use of such structure as template for the fabrication of high-performance photocatalytic materials. The controlled subtractive processes provide a new path to modify such nanoarchitecture and its optical property. Distinct from previous studies on the optical property of the Morpho wing structure, this study provides additional experimental evidence for the origination of the optical property of the natural butterfly wing scales. The study also offers a facile approach to generate new 3D nanostructures using butterfly wings as the templates and may lead to simpler structure models for large-scale man-made structures than those offered by original butterfly wings.
authors.affiliation: State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China.|School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China.
authors.forename: Qingchen
authors.initials: Q
authors.lastname: Shen
authors.affiliation: State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China.|School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China.
authors.forename: Jiaqing
authors.initials: J
authors.lastname: He
authors.affiliation: State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China.|School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China.
authors.forename: Mengtian
authors.initials: M
authors.lastname: Ni
authors.affiliation: State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China.|School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China.
authors.forename: Chengyi
authors.initials: C
authors.lastname: Song
authors.affiliation: State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China.|School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China.
authors.forename: Lingye
authors.initials: L
authors.lastname: Zhou
authors.affiliation: State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China.|School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China.
authors.forename: Hang
authors.initials: H
authors.lastname: Hu
authors.affiliation: State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China.|School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China.
authors.forename: Ruoxi
authors.initials: R
authors.lastname: Zhang
authors.affiliation: State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China.|School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China.
authors.forename: Zhen
authors.initials: Z
authors.lastname: Luo
authors.affiliation: Analytical Center, Shanghai Jiao Tong University, Shanghai, 200240, P.R. China.
authors.forename: Ge
authors.initials: G
authors.lastname: Wang
authors.affiliation: State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China.|School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China.
authors.forename: Peng
authors.initials: P
authors.lastname: Tao
authors.affiliation: State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China.|School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China.
authors.forename: Tao
authors.initials: T
authors.lastname: Deng
authors.affiliation: State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China.|School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China.
authors.forename: Wen
authors.initials: W
authors.lastname: Shang
mesh_terms: D000818:Animals; D040761:Biomimetic Materials / Q000737:chemistry; D015374:Biosensing Techniques / Q000295:instrumentation / Q000379:methods; D002080:Butterflies; D003116:Color; D008855:Microscopy, Electron, Scanning; D046529:Microscopy, Electron, Transmission; D049329:Nanostructures / Q000737:chemistry; D055620:Optical Phenomena; D017785:Photons; D017382:Reactive Oxygen Species / Q000378:metabolism; D014921:Wings, Animal / Q000737:chemistry* / Q000378:metabolism
chemical_list: D017382:Reactive Oxygen Species
keywords: Morpho butterfly wings; Morpho butterfly, nanoarchitectures; optical properties; plasma; subtractive modification