Super Stretchable and Compressible Hydrogels Inspired by Hook-and-Loop Fasteners.

Autor: Ding F; College of Chemistry and Materials Science & Fujian Key Laboratory of Polymer Science, Fujian Normal University, Fuzhou 350007, China.; Polymer Program, Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269, United States.; Department of Chemical and Biomolecular Engineering, University of Connecticut, Storrs, Connnecticut 06269, United States., Ding H; Polymer Program, Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269, United States.; Department of Chemical and Biomolecular Engineering, University of Connecticut, Storrs, Connnecticut 06269, United States., Shen Z; Department of Mechanical Engineering, University of Connecticut, Storrs, Connecticut 06269, United States., Qian L; Department of Anatomy and Guangdong Provincial Key Laboratory of Medical Biomechanics, Southern Medical University, Guangzhou 510515, China., Ouyang J; Department of Anatomy and Guangdong Provincial Key Laboratory of Medical Biomechanics, Southern Medical University, Guangzhou 510515, China., Zeng S; Polymer Program, Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269, United States.; Department of Chemical and Biomolecular Engineering, University of Connecticut, Storrs, Connnecticut 06269, United States., Seery TAP; Polymer Program, Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269, United States.; Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269, United States., Li J; College of Chemistry and Materials Science & Fujian Key Laboratory of Polymer Science, Fujian Normal University, Fuzhou 350007, China., Wu G; College of Chemistry and Materials Science & Fujian Key Laboratory of Polymer Science, Fujian Normal University, Fuzhou 350007, China., Chavez SE; Polymer Program, Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269, United States.; Department of Chemical and Biomolecular Engineering, University of Connecticut, Storrs, Connnecticut 06269, United States., Smith AT; Polymer Program, Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269, United States.; Department of Chemical and Biomolecular Engineering, University of Connecticut, Storrs, Connnecticut 06269, United States., Liu L; College of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China., Li Y; Polymer Program, Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269, United States.; Department of Mechanical Engineering, University of Connecticut, Storrs, Connecticut 06269, United States., Sun L; Polymer Program, Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269, United States.; Department of Chemical and Biomolecular Engineering, University of Connecticut, Storrs, Connnecticut 06269, United States.; Department of Biomedical Engineering, University of Connecticut, Storrs, Connecticut 06269, United States.
Jazyk: angličtina
Zdroj: Langmuir : the ACS journal of surfaces and colloids [Langmuir] 2021 Jun 29; Vol. 37 (25), pp. 7760-7770. Date of Electronic Publication: 2021 Jun 15.
DOI: 10.1021/acs.langmuir.1c00924
Abstrakt: Inspired by hook-and-loop fasteners, we designed a hydrogel network containing α-zirconium phosphate (ZrP) two-dimensional nanosheets with a high density of surface hydroxyl groups serving as nanopatches with numerous "hooks," while polymer chains with plentiful amine functional groups serve as "loops." Our multiscale molecular simulations confirm that both the high density of hydroxyl groups on nanosheets and the large number of amine functional groups on polymer chains are essential to achieve reversible interactions at the molecular scale, functioning as nano hook-and-loop fasteners to dissipate energy. As a result, the synthesized hydrogel possesses superior stretchability (>2100% strain), resilience to compression (>90% strain), and durability. Remarkably, the hydrogel can sustain >5000 cycles of compression with torsion in a solution mimicking synovial fluid, thus promising for potential biomedical applications such as artificial articular cartilage. This hook-and-loop model can be adopted and generalized to design a wide range of multifunctional materials with exceptional mechanical properties.
Databáze: MEDLINE