We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Self‐Sorting Double‐Network Hydrogels with Tunable Supramolecular Handedness and Mechanical Properties.
- Authors
Liu, Guofeng; Zhou, Cheng; Teo, Wei Liang; Qian, Cheng; Zhao, Yanli
- Abstract
Self‐sorting, simultaneous, and orthogonal operations during the self‐assembly of complex mixtures are commonly observed for biological species but rare in artificial systems. In this study, we designed two gelators (LPF and LPFEG) containing the same chiral phenylalanine core but different achiral peripheral substituents to give hydrogels with opposite supramolecular handedness. When the two hydrogels were mixed, double‐network nanofibers with opposite handedness were formed by spontaneous high‐order organization and self‐sorting of the two gelators. The chiroptical activity of the double‐network hydrogels could be tuned by varying the molar ratio of LPF and LPFEG in the mixture, thus showing that the two gelators were highly independent of each other. Enhanced mechanical properties were observed for the interpenetrating networks when the LPF/LPFEG molar ratio was 3:7, with a more than fourfold increase in both the storage (G′) and loss modulus (G′′) relative to those of the individual hydrogels.
- Subjects
HYDROGELS; HANDEDNESS; ENDANGERED species; NANOFIBERS
- Publication
Angewandte Chemie, 2019, Vol 131, Issue 28, p9466
- ISSN
0044-8249
- Publication type
Article
- DOI
10.1002/ange.201982861