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Biocompatible and Sustainable Optical Strain Sensors for Large-Area Applications

Accepted version
Peer-reviewed

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Authors

Kamita, G 
Frka-Petesic, Bruno  ORCID logo  https://orcid.org/0000-0001-5002-5685
Allard, A 
Dargaud, M 
King, K 

Abstract

By a simple two-step procedure, large photonic strain sensors using a biocompatible cellulose derivative are fabricated. Transient color shifts of the sensors are explained by a theoretical model that consideres the deformation of cholesteric domains, which is in agreement with the experimental results. The extremely simple fabrication method is suitable for both miniaturization and large-sale manufacture, taking advantage of inexpensive and sustainable materials.

Description

Keywords

cellulose, cholesteric liquid crystals, iridescence, photonic structures, strain sensors

Journal Title

Advanced Optical Materials

Conference Name

Journal ISSN

2195-1071
2195-1071

Volume Title

4

Publisher

Wiley
Sponsorship
Biotechnology and Biological Sciences Research Council (BB/K014617/1)
European Research Council (639088)
Biotechnology and Biological Sciences Research Council (David Phillips fellowship (Grant ID: BB/K014617/1)), The Isaac Newton Trust Cambridge (Grant ID: 76933), European Research Council (Grant ID: ERC-2014-STG H2020 639088)