Kim, Bum Jin Oh, Dongyeop X. Kim, Sangsik Seo, Jeong Hyun Hwang, Dong Soo Masic, Admir Han, Dong Keun Cha, Hyung Joon 2024-01-20T10:01:09Z 2024-01-20T10:01:09Z 2021-09-04 2014-05 1525-7797 https://pubs.kist.re.kr/handle/201004/126848 Hydrogel systems based on cross-linked polymeric materials which could provide both adhesion and cohesion in wet environment have been considered as a promising formulation of tissue adhesives. Inspired by marine mussel adhesion, many researchers have tried to exploit the 3,4-dihydroxyphenylalanine (DOPA) molecule as a cross-linking mediator of synthetic polymer-based hydrogels which is known to be able to achieve cohesive hardening as well as adhesive bonding with diverse surfaces. Beside DOPA residue, composition of other amino acid residues and structure of mussel adhesive proteins (MAPs) have also been considered important elements for mussel adhesion. Herein, we represent a novel protein-based hydrogel system using DOPA-containing recombinant MAP. Gelation can be achieved using both oxdiation-induced DOPA quinone-mediated covalent and Fe3+-mediated coordinative noncovalent cross-linking. Fe3+-mediated hydrogels show deformable and self-healing viscoelastic behavior in rheological analysis, which is also well-reflected in bulk adhesion strength measurement. Quinone-mediated hydrogel has higher cohesive strength and can provide sufficient gelation time for easier handling. Collectively, our newly developed MAP hydrogel can potentially be used as tissue adhesive and sealant for future applications. English AMER CHEMICAL SOC CROSS-LINKING TISSUE ADHESIVE CATECHOL DOPA SEALANT BIOADHESIVE GELATION COATINGS POLYMER IRON Mussel-Mimetic Protein-Based Adhesive Hydrogel Article 10.1021/bm4017308 1 BIOMACROMOLECULES, v.15, no.5, pp.1579 - 1585 BIOMACROMOLECULES 15 5 1579 1585 scie scopus 000335939800004 2-s2.0-84900459469 Biochemistry & Molecular Biology Chemistry, Organic Polymer Science Biochemistry & Molecular Biology Chemistry Polymer Science Article CROSS-LINKING TISSUE ADHESIVE CATECHOL DOPA SEALANT BIOADHESIVE GELATION COATINGS POLYMER IRON