Tough and tunable adhesion of hydrogels: experiments and models

As polymer networks infiltrated with water, hydrogels are major constituents of animal and plant bodies and have diverse engineering applications. While natural hydrogels can robustly adhere to other biological materials, such as bonding of tendons and cartilage on bones and adhesive plaques of muss...

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Main Authors: Zhang, Teng, Yuk, Hyunwoo, Lin, Shaoting, Parada Hernandez, German Alberto, Zhao, Xuanhe
Other Authors: Massachusetts Institute of Technology. Soft Active Materials Laboratory
Format: Article
Language:English
Published: Springer-Verlag 2017
Online Access:http://hdl.handle.net/1721.1/110619
https://orcid.org/0000-0001-7015-058X
https://orcid.org/0000-0003-1710-9750
https://orcid.org/0000-0001-7922-0249
https://orcid.org/0000-0001-5387-6186
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author Zhang, Teng
Yuk, Hyunwoo
Lin, Shaoting
Parada Hernandez, German Alberto
Zhao, Xuanhe
author2 Massachusetts Institute of Technology. Soft Active Materials Laboratory
author_facet Massachusetts Institute of Technology. Soft Active Materials Laboratory
Zhang, Teng
Yuk, Hyunwoo
Lin, Shaoting
Parada Hernandez, German Alberto
Zhao, Xuanhe
author_sort Zhang, Teng
collection MIT
description As polymer networks infiltrated with water, hydrogels are major constituents of animal and plant bodies and have diverse engineering applications. While natural hydrogels can robustly adhere to other biological materials, such as bonding of tendons and cartilage on bones and adhesive plaques of mussels, it is challenging to achieve such tough adhesions between synthetic hydrogels and engineering materials. Recent experiments show that chemically anchoring long-chain polymer networks of tough synthetic hydrogels on solid surfaces create adhesions tougher than their natural counterparts, but the underlying mechanism has not been well understood. It is also challenging to tune systematically the adhesion of hydrogels on solids. Here, we provide a quantitative understanding of the mechanism for tough adhesions of hydrogels on solid materials via a combination of experiments, theory, and numerical simulations. Using a coupled cohesive-zone and Mullins-effect model validated by experiments, we reveal the interplays of intrinsic work of adhesion, interfacial strength, and energy dissipation in bulk hydrogels in order to achieve tough adhesions. We further show that hydrogel adhesion can be systematically tuned by tailoring the hydrogel geometry and silanization time of solid substrates, corresponding to the control of energy dissipation zone and intrinsic work of adhesion, respectively. The current work further provides a theoretical foundation for rational design of future biocompatible and underwater adhesives.
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spelling mit-1721.1/1106192022-09-27T18:39:33Z Tough and tunable adhesion of hydrogels: experiments and models Zhang, Teng Yuk, Hyunwoo Lin, Shaoting Parada Hernandez, German Alberto Zhao, Xuanhe Massachusetts Institute of Technology. Soft Active Materials Laboratory Massachusetts Institute of Technology. Department of Mechanical Engineering Zhang, Teng Yuk, Hyunwoo Lin, Shaoting Parada Hernandez, German Alberto Zhao, Xuanhe As polymer networks infiltrated with water, hydrogels are major constituents of animal and plant bodies and have diverse engineering applications. While natural hydrogels can robustly adhere to other biological materials, such as bonding of tendons and cartilage on bones and adhesive plaques of mussels, it is challenging to achieve such tough adhesions between synthetic hydrogels and engineering materials. Recent experiments show that chemically anchoring long-chain polymer networks of tough synthetic hydrogels on solid surfaces create adhesions tougher than their natural counterparts, but the underlying mechanism has not been well understood. It is also challenging to tune systematically the adhesion of hydrogels on solids. Here, we provide a quantitative understanding of the mechanism for tough adhesions of hydrogels on solid materials via a combination of experiments, theory, and numerical simulations. Using a coupled cohesive-zone and Mullins-effect model validated by experiments, we reveal the interplays of intrinsic work of adhesion, interfacial strength, and energy dissipation in bulk hydrogels in order to achieve tough adhesions. We further show that hydrogel adhesion can be systematically tuned by tailoring the hydrogel geometry and silanization time of solid substrates, corresponding to the control of energy dissipation zone and intrinsic work of adhesion, respectively. The current work further provides a theoretical foundation for rational design of future biocompatible and underwater adhesives. United States. Office of Naval Research (N00014-14-1-0528) National Science Foundation (U.S.) (CMMI-1253495) National Institutes of Health (U.S.) (UH3TR000505) 2017-07-11T13:41:24Z 2018-03-04T06:00:05Z 2017-05 2017-03 2017-07-05T03:58:21Z Article http://purl.org/eprint/type/JournalArticle 0567-7718 1614-3116 http://hdl.handle.net/1721.1/110619 Zhang, Teng; Yuk, Hyunwoo et al. “Tough and Tunable Adhesion of Hydrogels: Experiments and Models.” Acta Mechanica Sinica 33, 3 (May 2017): 543–554 © 2017 The Chinese Society of Theoretical and Applied Mechanics; Institute of Mechanics, Chinese Academy of Sciences and Springer-Verlag Berlin Heidelberg https://orcid.org/0000-0001-7015-058X https://orcid.org/0000-0003-1710-9750 https://orcid.org/0000-0001-7922-0249 https://orcid.org/0000-0001-5387-6186 en http://dx.doi.org/10.1007/s10409-017-0661-z Acta Mechanica Sinica Creative Commons Attribution-Noncommercial-Share Alike http://creativecommons.org/licenses/by-nc-sa/4.0/ The Chinese Society of Theoretical and Applied Mechanics; Institute of Mechanics, Chinese Academy of Sciences and Springer-Verlag Berlin Heidelberg application/pdf Springer-Verlag The Chinese Society of Theoretical and Applied Mechanics; Institute of Mechanics, Chinese Academy of Sciences
spellingShingle Zhang, Teng
Yuk, Hyunwoo
Lin, Shaoting
Parada Hernandez, German Alberto
Zhao, Xuanhe
Tough and tunable adhesion of hydrogels: experiments and models
title Tough and tunable adhesion of hydrogels: experiments and models
title_full Tough and tunable adhesion of hydrogels: experiments and models
title_fullStr Tough and tunable adhesion of hydrogels: experiments and models
title_full_unstemmed Tough and tunable adhesion of hydrogels: experiments and models
title_short Tough and tunable adhesion of hydrogels: experiments and models
title_sort tough and tunable adhesion of hydrogels experiments and models
url http://hdl.handle.net/1721.1/110619
https://orcid.org/0000-0001-7015-058X
https://orcid.org/0000-0003-1710-9750
https://orcid.org/0000-0001-7922-0249
https://orcid.org/0000-0001-5387-6186
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AT linshaoting toughandtunableadhesionofhydrogelsexperimentsandmodels
AT paradahernandezgermanalberto toughandtunableadhesionofhydrogelsexperimentsandmodels
AT zhaoxuanhe toughandtunableadhesionofhydrogelsexperimentsandmodels