Solvent-Free Plasticity and Programmable Mechanical Behaviors of Engineered Proteins.
engineered proteins
liquid crystalline gels
mechanical programmability
plasticity
Journal
Advanced materials (Deerfield Beach, Fla.)
ISSN: 1521-4095
Titre abrégé: Adv Mater
Pays: Germany
ID NLM: 9885358
Informations de publication
Date de publication:
Mar 2020
Mar 2020
Historique:
received:
23
11
2019
revised:
16
12
2019
pubmed:
29
1
2020
medline:
16
12
2020
entrez:
29
1
2020
Statut:
ppublish
Résumé
Biopolymeric networks with plasticity show great competences in diverse fields owing to the combined biocompatible and mechanical characteristics. However, to realize such plasticity external complicated treatments, e.g., UV or organic solvent have to be applied, which in turn impair the biological nature and even mechanical properties of those systems. To address this challenge, one new type of anhydrous protein liquid crystalline (LC) gels, which exhibit flexible morphological plasticity and mechanical programmability is demonstrated. Supramolecular interactions in the smectic biogels play an important role for their high plasticity. Remarkably, the samples exhibit outstanding mechanical behaviors. The tensile strength and Young's modulus at MPa levels are comparable or even higher than chemically cross-linked hydrogels and LC elastomers. More importantly, mechanical programmability of the LC gels is achieved by genetically tuning the charge density of protein backbones. Consequently, the mechanical performance is manipulated in the range of one order of magnitude. Thus, this type of anhydrous protein LC gels offers great opportunities for load-bearing high-tech applications.
Identifiants
pubmed: 31990428
doi: 10.1002/adma.201907697
doi:
Substances chimiques
Biocompatible Materials
0
Elastomers
0
Gels
0
Peptides
0
Elastin
9007-58-3
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
e1907697Subventions
Organisme : Chinese Academy of Sciences
ID : ZDKYYQ20180001
Organisme : National Natural Science Foundation of China
ID : 21704099
Organisme : National Natural Science Foundation of China
ID : 21877104
Organisme : National Natural Science Foundation of China
ID : 21834007
Organisme : National Natural Science Foundation of China
ID : 21801235
Organisme : National Natural Science Foundation of China
ID : 21907088
Organisme : National Key Research and Development Program of China
ID : 2018YFA0902600
Informations de copyright
© 2020 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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