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Article: Water-Rich Biomimetic Composites with Abiotic Self-Organizing Nanofiber Network

TitleWater-Rich Biomimetic Composites with Abiotic Self-Organizing Nanofiber Network
Authors
Keywordshydrogels
nanofiber networks
self-organization
biomimetic materials
nanocomposites
Issue Date2018
Citation
Advanced Materials, 2018, v. 30, n. 1, article no. 1703343 How to Cite?
Abstract© 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim Load-bearing soft tissues, e.g., cartilage, ligaments, and blood vessels, are made predominantly from water (65–90%) which is essential for nutrient transport to cells. Yet, they display amazing stiffness, toughness, strength, and deformability attributed to the reconfigurable 3D network from stiff collagen nanofibers and flexible proteoglycans. Existing hydrogels and composites partially achieve some of the mechanical properties of natural soft tissues, but at the expense of water content. Concurrently, water-rich biomedical polymers are elastic but weak. Here, biomimetic composites from aramid nanofibers interlaced with poly(vinyl alcohol), with water contents of as high as 70–92%, are reported. With tensile moduli of ≈9.1 MPa, ultimate tensile strains of ≈325%, compressive strengths of ≈26 MPa, and fracture toughness of as high as ≈9200 J m−2, their mechanical properties match or exceed those of prototype tissues, e.g., cartilage. Furthermore, with reconfigurable, noncovalent interactions at nanomaterial interfaces, the composite nanofiber network can adapt itself under stress, enabling abiotic soft tissue with multiscale self-organization for effective load bearing and energy dissipation.
Persistent Identifierhttp://hdl.handle.net/10722/265726
ISSN
2019 Impact Factor: 27.398
2015 SCImago Journal Rankings: 9.021
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorXu, L-
dc.contributor.authorZhao, X-
dc.contributor.authorXu, C-
dc.contributor.authorKotov, NA-
dc.date.accessioned2018-12-03T01:21:30Z-
dc.date.available2018-12-03T01:21:30Z-
dc.date.issued2018-
dc.identifier.citationAdvanced Materials, 2018, v. 30, n. 1, article no. 1703343-
dc.identifier.issn0935-9648-
dc.identifier.urihttp://hdl.handle.net/10722/265726-
dc.description.abstract© 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim Load-bearing soft tissues, e.g., cartilage, ligaments, and blood vessels, are made predominantly from water (65–90%) which is essential for nutrient transport to cells. Yet, they display amazing stiffness, toughness, strength, and deformability attributed to the reconfigurable 3D network from stiff collagen nanofibers and flexible proteoglycans. Existing hydrogels and composites partially achieve some of the mechanical properties of natural soft tissues, but at the expense of water content. Concurrently, water-rich biomedical polymers are elastic but weak. Here, biomimetic composites from aramid nanofibers interlaced with poly(vinyl alcohol), with water contents of as high as 70–92%, are reported. With tensile moduli of ≈9.1 MPa, ultimate tensile strains of ≈325%, compressive strengths of ≈26 MPa, and fracture toughness of as high as ≈9200 J m−2, their mechanical properties match or exceed those of prototype tissues, e.g., cartilage. Furthermore, with reconfigurable, noncovalent interactions at nanomaterial interfaces, the composite nanofiber network can adapt itself under stress, enabling abiotic soft tissue with multiscale self-organization for effective load bearing and energy dissipation.-
dc.languageeng-
dc.relation.ispartofAdvanced Materials-
dc.subjecthydrogels-
dc.subjectnanofiber networks-
dc.subjectself-organization-
dc.subjectbiomimetic materials-
dc.subjectnanocomposites-
dc.titleWater-Rich Biomimetic Composites with Abiotic Self-Organizing Nanofiber Network-
dc.typeArticle-
dc.identifier.emailXu, L: xulizhi@hku.hk-
dc.identifier.authorityXu, L=rp02485-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1002/adma.201703343-
dc.identifier.pmid29134692-
dc.identifier.scopuseid_2-s2.0-85033688027-
dc.identifier.hkuros299361-
dc.identifier.volume30-
dc.identifier.issue1-
dc.identifier.spagearticle no. 1703343-
dc.identifier.epagearticle no. 1703343-
dc.identifier.eissn1521-4095-
dc.identifier.isiWOS:000419033700008-
dc.identifier.issnl0935-9648-

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