3 years ago

Site-Specific Preswelling-Directed Morphing Structures of Patterned Hydrogels

Qiang Zheng, Zhi Jian Wang, Wei Hong, Zi Liang Wu
We demonstrate here a versatile approach to control the buckling of individual domains and thus the outcome configurations of planar-patterned hydrogels. By photolithography, series of high-swelling disc gels were positioned in a non-swelling gel sheet; the swelling mismatch resulted in out-of-plain buckling of the disc gels. To locally control the buckling direction, masks with holes were used to guide site-specific swelling of the gel under the holes, which built transient through-thickness gradient and thus directed the buckling during the subsequent unmasked swelling process. With the selective preswelling process, various configurations and shape transformations of one identical patterned hydrogel can be well programmed by the preswelling, as shown by both experimental and simulation results. This work provides a straightforward approach to program the deformations and resulting configurations, which should expand the applications of morphing materials in sensing, actuation, etc.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1002/anie.201708926

You might also like
Discover & Discuss Important Research

Keeping up-to-date with research can feel impossible, with papers being published faster than you'll ever be able to read them. That's where Researcher comes in: we're simplifying discovery and making important discussions happen. With over 19,000 sources, including peer-reviewed journals, preprints, blogs, universities, podcasts and Live events across 10 research areas, you'll never miss what's important to you. It's like social media, but better. Oh, and we should mention - it's free.

  • Download from Google Play
  • Download from App Store
  • Download from AppInChina

Researcher displays publicly available abstracts and doesn’t host any full article content. If the content is open access, we will direct clicks from the abstracts to the publisher website and display the PDF copy on our platform. Clicks to view the full text will be directed to the publisher website, where only users with subscriptions or access through their institution are able to view the full article.