Tough hydrogels with tunable soft and wet interfacial adhesion

Hydrogels that possess adequate toughness in bulk and at soft interface are highly desirable. We report a fully physically crosslinked dual Amylopectin (Amy, the first network)/poly(N-hydroxyethyl acrylamide) (PHEAA, the second network) hydrogel, where both networks were hydrogen bonding (H-bonding)...

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Autores principales:	Yikun Zhang, Junjie Xue, Dapeng Li, Haiyan Li, Zihan Huang, Yiwan Huang, Chunjie Gong, Shijun Long, Xuefeng Li
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Amylopectin Oxidized starch Double-network hydrogels Schiff's bases Interfacial toughness Polymers and polymer manufacture TP1080-1185
Acceso en línea:	https://doaj.org/article/38809085b9d24c51b7a27bc9bf46e3dc
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spelling	oai:doaj.org-article:38809085b9d24c51b7a27bc9bf46e3dc2021-11-24T04:25:32ZTough hydrogels with tunable soft and wet interfacial adhesion0142-941810.1016/j.polymertesting.2020.106976https://doaj.org/article/38809085b9d24c51b7a27bc9bf46e3dc2021-01-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S0142941820322054https://doaj.org/toc/0142-9418Hydrogels that possess adequate toughness in bulk and at soft interface are highly desirable. We report a fully physically crosslinked dual Amylopectin (Amy, the first network)/poly(N-hydroxyethyl acrylamide) (PHEAA, the second network) hydrogel, where both networks were hydrogen bonding (H-bonding) crosslinked, with super toughness in bulk and tunable adhesion at hydrogel-soft tissue interface. Through adjustment of hydrogen bond density, strong and tough hydrogels were prepared that exhibited different levels of adhesion strength and three adhesive failure mechanisms. We replaced Amy with oxidized starch (OSA) to synthesize dual and hybrid chemically/physically crosslinked OSA/PHEAA double network (DN) hydrogels that were capable of forming Schiff's bases at hydrogel-hydrogel or hydrogel-tissue interfaces, aside from interfacial H-bonding, incurring sustained, high interfacial toughness (1850 J m−2 hydrogel-hydrogel and 610 J m−2 hydrogel-tissue) in wet environments. Such tough and adhesive DN hydrogels have great potential in various applications such as engineering of artificial soft tissues or implantable devices that are intended to adhere to internal organs or tissues.Yikun ZhangJunjie XueDapeng LiHaiyan LiZihan HuangYiwan HuangChunjie GongShijun LongXuefeng LiElsevierarticleAmylopectinOxidized starchDouble-network hydrogelsSchiff's basesInterfacial toughnessPolymers and polymer manufactureTP1080-1185ENPolymer Testing, Vol 93, Iss , Pp 106976- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Amylopectin Oxidized starch Double-network hydrogels Schiff's bases Interfacial toughness Polymers and polymer manufacture TP1080-1185
spellingShingle	Amylopectin Oxidized starch Double-network hydrogels Schiff's bases Interfacial toughness Polymers and polymer manufacture TP1080-1185 Yikun Zhang Junjie Xue Dapeng Li Haiyan Li Zihan Huang Yiwan Huang Chunjie Gong Shijun Long Xuefeng Li Tough hydrogels with tunable soft and wet interfacial adhesion
description	Hydrogels that possess adequate toughness in bulk and at soft interface are highly desirable. We report a fully physically crosslinked dual Amylopectin (Amy, the first network)/poly(N-hydroxyethyl acrylamide) (PHEAA, the second network) hydrogel, where both networks were hydrogen bonding (H-bonding) crosslinked, with super toughness in bulk and tunable adhesion at hydrogel-soft tissue interface. Through adjustment of hydrogen bond density, strong and tough hydrogels were prepared that exhibited different levels of adhesion strength and three adhesive failure mechanisms. We replaced Amy with oxidized starch (OSA) to synthesize dual and hybrid chemically/physically crosslinked OSA/PHEAA double network (DN) hydrogels that were capable of forming Schiff's bases at hydrogel-hydrogel or hydrogel-tissue interfaces, aside from interfacial H-bonding, incurring sustained, high interfacial toughness (1850 J m−2 hydrogel-hydrogel and 610 J m−2 hydrogel-tissue) in wet environments. Such tough and adhesive DN hydrogels have great potential in various applications such as engineering of artificial soft tissues or implantable devices that are intended to adhere to internal organs or tissues.
format	article
author	Yikun Zhang Junjie Xue Dapeng Li Haiyan Li Zihan Huang Yiwan Huang Chunjie Gong Shijun Long Xuefeng Li
author_facet	Yikun Zhang Junjie Xue Dapeng Li Haiyan Li Zihan Huang Yiwan Huang Chunjie Gong Shijun Long Xuefeng Li
author_sort	Yikun Zhang
title	Tough hydrogels with tunable soft and wet interfacial adhesion
title_short	Tough hydrogels with tunable soft and wet interfacial adhesion
title_full	Tough hydrogels with tunable soft and wet interfacial adhesion
title_fullStr	Tough hydrogels with tunable soft and wet interfacial adhesion
title_full_unstemmed	Tough hydrogels with tunable soft and wet interfacial adhesion
title_sort	tough hydrogels with tunable soft and wet interfacial adhesion
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/38809085b9d24c51b7a27bc9bf46e3dc
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Tough hydrogels with tunable soft and wet interfacial adhesion

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