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Bio-inspired sensitive and reversible mechanochromisms via strain-dependent cracks and folds.
Zeng, Songshan; Zhang, Dianyun; Huang, Wenhan; Wang, Zhaofeng; Freire, Stephan G; Yu, Xiaoyuan; Smith, Andrew T; Huang, Emily Y; Nguon, Helen; Sun, Luyi.
Afiliação
  • Zeng S; Department of Chemical and Biomolecular Engineering and Polymer Program, Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269, USA.
  • Zhang D; Department of Mechanical Engineering, University of Connecticut, Storrs, Connecticut 06269, USA.
  • Huang W; Department of Chemical and Biomolecular Engineering and Polymer Program, Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269, USA.
  • Wang Z; School of Mechanical and Electrical Engineering, Heyuan Polytechnic, Heyuan, Guangdong 517000, China.
  • Freire SG; Department of Chemical and Biomolecular Engineering and Polymer Program, Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269, USA.
  • Yu X; Department of Chemical and Biomolecular Engineering and Polymer Program, Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269, USA.
  • Smith AT; Department of Chemical and Biomolecular Engineering and Polymer Program, Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269, USA.
  • Huang EY; Institute of Biomaterials, College of Materials and Energy, South China Agricultural University, Guangzhou, Guangdong 510642, China.
  • Nguon H; Department of Chemical and Biomolecular Engineering and Polymer Program, Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269, USA.
  • Sun L; Department of Chemical and Biomolecular Engineering and Polymer Program, Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269, USA.
Nat Commun ; 7: 11802, 2016 07 08.
Article em En | MEDLINE | ID: mdl-27389480
ABSTRACT
A number of marine organisms use muscle-controlled surface structures to achieve rapid changes in colour and transparency with outstanding reversibility. Inspired by these display tactics, we develop analogous deformation-controlled surface-engineering approaches via strain-dependent cracks and folds to realize the following four mechanochromic devices (1) transparency change mechanochromism (TCM), (2) luminescent mechanochromism (LM), (3) colour alteration mechanochromism (CAM) and (4) encryption mechanochromism (EM). These devices are based on a simple bilayer system that exhibits a broad range of mechanochromic behaviours with high sensitivity and reversibility. The TCM device can reversibly switch between transparent and opaque states. The LM can emit intensive fluorescence as stretched with very high strain sensitivity. The CAM can turn fluorescence from green to yellow to orange as stretched within 20% strain. The EM device can reversibly reveal and conceal any desirable patterns.
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Texto completo: 1 Base de dados: MEDLINE Assunto principal: Álcool de Polivinil / Silanos / Compostos de Vinila / Silicatos / Dispositivos Ópticos Idioma: En Ano de publicação: 2016 Tipo de documento: Article
Texto completo
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Texto completo: 1 Base de dados: MEDLINE Assunto principal: Álcool de Polivinil / Silanos / Compostos de Vinila / Silicatos / Dispositivos Ópticos Idioma: En Ano de publicação: 2016 Tipo de documento: Article