title: Desolvation Induced Origami of Photocurable Polymers by Digit Light Processing.
abstract: Self-folding origami is of great interest in current research on functional materials and structures, but there is still a challenge to develop a simple method to create freestanding, reversible, and complex origami structures. This communication provides a feasible solution to this challenge by developing a method based on the digit light processing technique and desolvation-induced self-folding. In this new method, flat polymer sheets can be cured by a light field from a commercial projector with varying intensity, and the self-folding process is triggered by desolvation in water. Folded origami structures can be recovered once immersed in the swelling medium. The self-folding process is investigated both experimentally and theoretically. Diverse 3D origami shapes are demonstrated. This method can be used for responsive actuators and the fabrication of 3D electronic devices.
authors.affiliation: The George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA.|College of Engineering, Peking University, Beijing, 100871, P. R. China.
authors.forename: Zeang
authors.initials: Z
authors.lastname: Zhao
authors.affiliation: The George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA.
authors.forename: Jiangtao
authors.initials: J
authors.lastname: Wu
authors.affiliation: The George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA.
authors.forename: Xiaoming
authors.initials: X
authors.lastname: Mu
authors.affiliation: Institute of Advanced Structure Technology, Beijing Institute of Technology, Beijing, 100081, P. R. China.
authors.forename: Haosen
authors.initials: H
authors.lastname: Chen
authors.affiliation: The George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA.
authors.forename: H Jerry
authors.initials: HJ
authors.lastname: Qi
authors.affiliation: College of Engineering, Peking University, Beijing, 100871, P. R. China.|Institute of Advanced Structure Technology, Beijing Institute of Technology, Beijing, 100081, P. R. China.
authors.forename: Daining
authors.initials: D
authors.lastname: Fang
mesh_terms: D008027:Light; D036103:Nanotechnology; D009690:Nucleic Acid Conformation / Q000528:radiation effects; D010777:Photochemistry; D011108:Polymers / Q000737:chemistry* / Q000528:radiation effects; D014867:Water / Q000737:chemistry
chemical_list: D011108:Polymers; D014867:Water
keywords: active structures; origami; photopolymerization; polymer films; self-folding