Fully printed flexible smart hybrid hydrogels
Date of Issue2018
School of Materials Science and Engineering
A printable hybrid hydrogel is fabricated by embedding poly(N‐isopropylacrylamide) (PNIPAm) microparticles within a water‐rich silica‐alumina(Si/Al)‐based gel matrix. The hybrid gel holds water content of up to 70 wt%, due to its unique Si/Al matrix. The hybrid hydrogel can respond to both heat and electrical stimuli, and can be directly printed layer‐by‐layer using a commercial 3‐dimensional printer, without requiring any curing. The hybrid ink is printed onto a transparent, flexible conductive electrode composed of silver nanoparticles and sustains bending angles of up to 180°, which enables patterning of various flexible devices such as smart windows and a 3D optical waveguide valve.
Advanced Functional Materials
© 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. This is the peer reviewed version of the following article: Zhou, Y., Layani, M., Wang, S., Hu, P., Ke, Y., Magdassi, S., & Long, Y. (2018). Fully Printed Flexible Smart Hybrid Hydrogels. Advanced Functional Materials, 28(9), 1705365-. , which has been published in final form at http://dx.doi.org/10.1002/adfm.201705365. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.