Cited by 45Hydrogels: synthesis, properties, applicationsSurgical Sutures and AdhesivesBiopolymer Synthesis and Applications

Enzymatically cross-linked poly(γ-glutamic acid) hydrogel with enhanced tissue adhesive property

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Kim, Min Hee, Lee, Jee Na, Lee, Jeehee, Lee, Haeshin, Park, Won Ho·2020·ACS Biomaterials Science & Engineering

Abstract

Enzymatic cross-linking of polymer-catechol conjugates in the presence of horseradish peroxidase (HRP) and H 2 O 2 has emerged as an important method to fabricate in situ -forming, injectable hydrogels. Subsequently, tissue adhesion studies using catechol-containing polymers were extensively reported. However, because of the presence of numerous variables such as polymer concentration, oxidizing agent/enzyme, and stoichiometry, the design of the polymer with optimized tissue adhesive property is still challenging. In this study, a poly(γ-glutamic acid) (γ-PGA)-dopamine (PGADA) conjugate was synthesized, and in situ hydrogels were fabricated via enzymatic cross-linking of a catechol moiety. To optimize the tissue adhesive property of the PGADA hydrogel, the effect of various factors, such as polymer concentration, catechol substitution degree (DS), HRP concentration, and H 2 O 2 content, on the gelation behavior and mechanical strength was investigated. The gelation behavior of PGADA hydrogels was characterized using a rheometer and rotational viscometer. Also, the possibility of its use as a tissue adhesive was examined by evaluating the tissue adhesion strength in vitro and ex vivo .

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Registry

Crossref · 10.1021/acsbiomaterials.0c00411

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  • Kim and coworkers found that PGADA was able to gel in the presence of horseradish peroxidase (HRP) and hydrogen peroxide (H2O2).

    “For example, Kim and coworkers synthesized catechol-modified poly (γ-glutamic acid) (PGADA). They found that PGADA was able to gel in the presence of horseradish peroxidase (HRP) and hydrogen peroxide (H2O2) [68].”

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Authors
Kim, M. H., Lee, J. N., Lee, J., Lee, H., & Park, W. H.
Affiliations
  • Chungnam National University (KR)
  • Korea Advanced Institute of Science and Technology (KR)
Corresponding author
  • Lee, Haeshin
  • Park, Won Ho
Venue
ACS Biomaterials Science & Engineering
Published
2020-04-22
Volume
6
Issue
5
Pages
3103-3113
ISSN
2373-9878 (ISSN-L)
OpenAlex
W3018132833
Cited by
45
References
54
Citations by year
2026: 5 · 2025: 2 · 2024: 5 · 2023: 9 · 2022: 11 · 2021: 12 · 2020: 1
FWCI
2.75
Type
journal article
Language
en
Open access
Locations
  • ACS Biomaterials Science & Engineering (publishedVersion)
  • SSRN Electronic Journal (acceptedVersion)
  • PubMed (publishedVersion)
Funders
National Research Foundation of Korea (2018R1A2A2A05021100)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Medicine › Hydrogels: synthesis, properties, applications
  • Health Sciences › Medicine › Surgery › Surgical Sutures and Adhesives
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Biopolymer Synthesis and Applications
Keywords
poly-γ-glutamic acid, catechol-containing polymers, enzymatic crosslinking, horseradish peroxidase, hydrogen peroxide, injectable hydrogel, tissue adhesion, in situ gelation, gelation behavior, mechanical strength, degree of substitution
MeSH terms
Hydrogen Peroxide, Polyglutamic Acid, Tissue Adhesives, Glutamic Acid, Hydrogels

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