Mechanics of gelatin-based hydrogels during finite strain tension, compression and shear

Introduction: Among the biopolymers used to make hydrogels, gelatin is very attractive due to its biocompatibility, biodegradability and versatile physico-chemical properties. A proper and complete characterization of the mechanical behavior of these hydrogels is critical to evaluate the relevance o...

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Main Authors: Hamid Yousefi-Mashouf, Lucie Bailly, Laurent Orgéas, Nathalie Henrich Bernardoni
Format: Article
Language:English
Published: Frontiers Media S.A. 2023-01-01
Series:Frontiers in Bioengineering and Biotechnology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fbioe.2022.1094197/full
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author Hamid Yousefi-Mashouf
Hamid Yousefi-Mashouf
Lucie Bailly
Laurent Orgéas
Nathalie Henrich Bernardoni
author_facet Hamid Yousefi-Mashouf
Hamid Yousefi-Mashouf
Lucie Bailly
Laurent Orgéas
Nathalie Henrich Bernardoni
author_sort Hamid Yousefi-Mashouf
collection DOAJ
description Introduction: Among the biopolymers used to make hydrogels, gelatin is very attractive due to its biocompatibility, biodegradability and versatile physico-chemical properties. A proper and complete characterization of the mechanical behavior of these hydrogels is critical to evaluate the relevance of one formulation over another for a targeted application, and to optimise their processing route accordingly.Methods: In this work, we manufactured neat gelatin and gelatin covalently cross-linked with glutaraldehyde at various concentrations, yielding to hydrogels with tunable mechanical properties that we characterized under finite strain, cyclic tension, compression and shear loadings.Results and Discussion: The role of both the chemical formulation and the kinematical path on the mechanical performances of the gels is highlighted. As an opening towards biomedical applications, the properties of the gels are confronted to those of native soft tissues particularly complicated to restore, the human vocal folds. A specific cross-linked hydrogel is selected to mimic vocal-fold fibrous tissues.
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spelling doaj.art-770a790f75834bd39ccbcb7a777631f22023-01-12T05:30:19ZengFrontiers Media S.A.Frontiers in Bioengineering and Biotechnology2296-41852023-01-011010.3389/fbioe.2022.10941971094197Mechanics of gelatin-based hydrogels during finite strain tension, compression and shearHamid Yousefi-Mashouf0Hamid Yousefi-Mashouf1Lucie Bailly2Laurent Orgéas3Nathalie Henrich Bernardoni4University Grenoble Alpes, Centre National de la Recherche Scientifique (CNRS), Grenoble INP, 3SR, Grenoble, FranceUniversity Grenoble Alpes, Centre National de la Recherche Scientifique (CNRS), Grenoble INP, GIPSA-lab, Grenoble, FranceUniversity Grenoble Alpes, Centre National de la Recherche Scientifique (CNRS), Grenoble INP, 3SR, Grenoble, FranceUniversity Grenoble Alpes, Centre National de la Recherche Scientifique (CNRS), Grenoble INP, 3SR, Grenoble, FranceUniversity Grenoble Alpes, Centre National de la Recherche Scientifique (CNRS), Grenoble INP, GIPSA-lab, Grenoble, FranceIntroduction: Among the biopolymers used to make hydrogels, gelatin is very attractive due to its biocompatibility, biodegradability and versatile physico-chemical properties. A proper and complete characterization of the mechanical behavior of these hydrogels is critical to evaluate the relevance of one formulation over another for a targeted application, and to optimise their processing route accordingly.Methods: In this work, we manufactured neat gelatin and gelatin covalently cross-linked with glutaraldehyde at various concentrations, yielding to hydrogels with tunable mechanical properties that we characterized under finite strain, cyclic tension, compression and shear loadings.Results and Discussion: The role of both the chemical formulation and the kinematical path on the mechanical performances of the gels is highlighted. As an opening towards biomedical applications, the properties of the gels are confronted to those of native soft tissues particularly complicated to restore, the human vocal folds. A specific cross-linked hydrogel is selected to mimic vocal-fold fibrous tissues.https://www.frontiersin.org/articles/10.3389/fbioe.2022.1094197/fullcovalently cross-linked hydrogelgelatinglutaraldehydetunable mechanical propertiesfinite strainsvocal folds
spellingShingle Hamid Yousefi-Mashouf
Hamid Yousefi-Mashouf
Lucie Bailly
Laurent Orgéas
Nathalie Henrich Bernardoni
Mechanics of gelatin-based hydrogels during finite strain tension, compression and shear
Frontiers in Bioengineering and Biotechnology
covalently cross-linked hydrogel
gelatin
glutaraldehyde
tunable mechanical properties
finite strains
vocal folds
title Mechanics of gelatin-based hydrogels during finite strain tension, compression and shear
title_full Mechanics of gelatin-based hydrogels during finite strain tension, compression and shear
title_fullStr Mechanics of gelatin-based hydrogels during finite strain tension, compression and shear
title_full_unstemmed Mechanics of gelatin-based hydrogels during finite strain tension, compression and shear
title_short Mechanics of gelatin-based hydrogels during finite strain tension, compression and shear
title_sort mechanics of gelatin based hydrogels during finite strain tension compression and shear
topic covalently cross-linked hydrogel
gelatin
glutaraldehyde
tunable mechanical properties
finite strains
vocal folds
url https://www.frontiersin.org/articles/10.3389/fbioe.2022.1094197/full
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