Wrinkled double network hydrogel via simple stretch-recovery. Issue 88 (14th October 2020)

• Record Type: Journal Article
• Authors: Wang, Chen; Yang, Shaohua; Guo, Qirui; Xu, Liju; Xu, Ye; Qiu, Dong
• Is Part Of: Chemical communications. Volume 56:Issue 88(2020)
• Page Start: 13587
• Page End: 13590
• Publication Date: 2020-10-14
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/d0cc05469k
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : We propose a new strategy for inducing different viscoelastic behaviors inside a double network hydrogel to achieve regular wrinkles with multiple dimensions. Abstract : The wrinkled structures in biological tissues play a key role in nutrition transportation and organ protection and cannot be easily achieved in synthetic hydrogels using universal and convenient strategies. Wrinkles are highly desirable for the nascent applications of hydrogels in biomaterials and artificial organs. Here, we propose a strategy for inducing different viscoelastic behaviours inside a double network hydrogel to achieve regular wrinkles that are formed by the mass redistribution. The wrinkles can be designed on multiple dimensions and can be well reserved in repeated tensile loadings. These wrinkled hydrogels exhibit unusual characteristics, such as the anisotropy of mechanics and J type tensile curves. This strategy is particularly valuable for biomaterials and artificial organs and may become a universal method for designing the surface morphology of soft materials in large-scale preparation.