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Designing Starch‐Based Nanospheres to Make Hydrogels with High Mechanical Strength |
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| Authors: | Ying Tan Pixin Wang Kun Xu Wenbo Li Huiyong An Linglu Li Chang Liu Lisong Dong |
| Affiliation: | 1. Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China;2. Graduate School of Chinese Academy of Sciences, Beijing 100049, China;3. School of Biological Engineering, Changchun University of Technology, Changchun 130022, China |
| Abstract: | A robust method to prepare hydrogels with high mechanical strength is presented. Core/shell nanospheres with derivatizable allyl groups in the shell were first prepared. Starch‐based nanospheres were used as crosslinker to prepare polyacrylamide hydrogels. The starch‐based nanospheres were bridged by acrylamide to form crosslink points in the hydrogel network. They possess an extremely high mechanical strength. The results show that starch‐based nanosphere hydrogels can sustain strengths of 10.34 MPa, which is 60 times greater than for a normal hydrogel. The mechanical properties of SNH can be tailored by varying the content of SN. This approach offered a new way of making functional hydrogel with biodegradable component as a substitute for tissue.  |
| Keywords: | hydrogels mechanical properties nanoparticles self‐assembly starch |