Robust Hydrogel Adhesion by Harnessing Bioinspired Interfacial Mineralization

Zhang, Jun1; Wang, Yaya2; Zhang, Jiajun1; Lei, Iek Man1; Chen, Guangda1; Xue, Yu1; Liang, Xiangyu1; Wang, Daozeng1; Wang, Guigen2; He, Sisi2; Liu, Ji1,3,4

2022-07-01

10.1002/smll.202201796

Small   Impact Factor & Quartile

1613-6810

1613-6829

Hydrogels have gained intensive interest in biomedical and flexible electronics, and adhesion of hydrogels to substrates or devices is indispensable in these application scenarios. Although numerous hydrogel adhesion strategies have been developed, it is still challenging to achieve a hydrogel with robust adhesion interface through a universal yet simple method. Here, a strategy for establishing strong interfacial adhesion between various hydrogels and a wide variety of substrates (i.e., soft hydrogels and rigid solids, including glass, aluminum, PET, nylon and PDMS) even under wet conditions, is reported. This strong interfacial adhesion is realized by constructing a bioinspired mineralized transition layer through ion diffusion and subsequent mineral deposition. This strategy is not only generally applicable to a broad range of substrates and ionic pairs, but also compatible with various fabrication approaches without compromising their interfacial robustnesses. This strategy is further demonstrated in the application of single-electrode triboelectric nanogenerators (TENG), where a robust interface between the hydrogel and elastomer layers is enabled to ensure a reliable signal generation and output.

bioinspired materials hydrogels interfaces mineralization robustness

SCI ; EI

English

First ; Corresponding

Natural Science Foundation of Guangdong Province["2022A1515010152","2020A1515110288"] ; Basic Research Program of Shenzhen["JCYJ20210324105211032","RCBS20210609103713046"] ; MechERE Centers at MIT and SUSTech[Y01346002] ; Science, Technology and Innovation Commission of Shenzhen Municipality[ZDSYS20200811143601004] ; National Natural Science Foundation of China (NSFC)[52103300] ; Shenzhen Science and Technology Program["JCYJ20210324132806017","KQTD20200820113045083"]

Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics

Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter

WOS:000821823100001

WILEY-V C H VERLAG GMBH

20222812336105

Adhesion ; Flexible electronics ; Mineralogy ; Substrates

Mineralogy:482 ; Electronic Equipment, General Purpose and Industrial:715 ; Colloid Chemistry:801.3 ; Chemical Products Generally:804 ; Materials Science:951

Web of Science

1.Southern Univ Sci & Technol, Dept Mech & Energy Engn, Shenzhen 518055, Peoples R China
2.Harbin Inst Technol Shenzhen, Flexible Printed Elect Technol Ctr, Sch Sci, Shenzhen 518055, Guangdong, Peoples R China
3.Southern Univ Sci & Technol, Shenzhen Key Lab Biomimet Robot & Intelligent Sys, Dept Mech & Energy Engn, Shenzhen 518055, Peoples R China
4.Southern Univ Sci & Technol, Guangdong Prov Key Lab Human Augmentat & Rehabil, Shenzhen 518055, Peoples R China

Zhang, Jun,Wang, Yaya,Zhang, Jiajun,et al. Robust Hydrogel Adhesion by Harnessing Bioinspired Interfacial Mineralization[J]. Small,2022,18.

Zhang, Jun.,Wang, Yaya.,Zhang, Jiajun.,Lei, Iek Man.,Chen, Guangda.,...&Liu, Ji.(2022).Robust Hydrogel Adhesion by Harnessing Bioinspired Interfacial Mineralization.Small,18.

Zhang, Jun,et al."Robust Hydrogel Adhesion by Harnessing Bioinspired Interfacial Mineralization".Small 18(2022).