| Autor: |
Qifeng Mu, Kunpeng Cui, Zhi jian Wang, Takahiro Matsuda, Wei Cui, Hinako Kato, Shotaro Namiki, Tomoko Yamazaki, Martin Frauenlob, Daniel King, Takayuki Nonoyama, Masumi Tsuda, Shinya Tanaka, Tasuku Nakajima, Jian Ping Gong |
| Rok vydání: |
2022 |
| Popis: |
Instantaneous patterning on soft material surfaces, such as hydrogels, is important in various research fields; however, it is extremely challenging. Existing strategies for soft material surface patterning are time-consuming and have poor chemical versatility. Herein, we show how micropatterns can be rapidly created on tough double-network (DN) hydrogel surfaces via sacrificial bonds and mechanical force-triggered radical polymerisation. Micropatterning is performed by local mechanical forces, which initiate radical polymerisation in a process zone in the presence of unsaturated monomers, resulting in on-demand functional patterns with a variety of geometries and chemistries. Such force-triggered activation occurs within seconds and is applicable to diverse monomers. To demonstrate potential applications, we engineered topographies and chemistries on DN hydrogel surfaces to control cell adhesion and water droplet directional transport. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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