Controlling mechanical properties of bio-inspired hydrogels by modulating nano-scale, inter-polymeric junctions

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Quinone tanning is a well-characterized biochemical process found in invertebrates, which produce diverse materials from extremely hard tissues to soft water-resistant adhesives. Herein, we report new types of catecholamine PEG derivatives, PEG-NH-catechols that can utilize an expanded spectrum of catecholamine chemistry. The PEGs enable simultaneous participation of amine and catechol in quinone tanning crosslinking. The intermolecular reaction between PEG-NH-catechols forms a dramatic nano-scale junction resulting in enhancement of gelation kinetics and mechanical properties of PEG hydrogels compared to results obtained by using PEGs in the absence of amine groups. Therefore, the study provides new insight into designing new crosslinking chemistry for controlling nano-scale chemical reactions that can broaden unique properties of bulk hydrogels.
Publisher
BEILSTEIN-INSTITUT
Issue Date
2014-06
Language
English
Article Type
Article
Keywords

BLOCK-COPOLYMERS; INSECT CUTICLE; ADHESIVE; DOPA; CONJUGATION; OXIDATION; PROTEINS; SURFACES; COATINGS; CATECHOL

Citation

BEILSTEIN JOURNAL OF NANOTECHNOLOGY, v.5, pp.887 - 894

ISSN
2190-4286
DOI
10.3762/bjnano.5.101
URI
http://hdl.handle.net/10203/189419
Appears in Collection
CH-Journal Papers(저널논문)
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