Graphene-Lined Porous Gelatin Glycidyl Methacrylate Hydrogels: Implications for Tissue Engineering

Despite rigorous research, inferior mechanical properties and structural homogeneity are the main challenges constraining hydrogel's suturability to host tissue and limiting its clinical applications. To tackle those, we developed a reverse solvent interface trapping method, in which organized,...

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Main Authors: Sharifi, Sina, Sharifi, Hannah, Akbari, Ali, Dohlman, Claes H, Paschalis, Eleftherios I, Gonzalez-Andrades, Miguel, Kong, Jing, Chodosh, James
Other Authors: Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Format: Article
Language:English
Published: American Chemical Society (ACS) 2022
Online Access:https://hdl.handle.net/1721.1/143968
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author Sharifi, Sina
Sharifi, Hannah
Akbari, Ali
Dohlman, Claes H
Paschalis, Eleftherios I
Gonzalez-Andrades, Miguel
Kong, Jing
Chodosh, James
author2 Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
author_facet Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Sharifi, Sina
Sharifi, Hannah
Akbari, Ali
Dohlman, Claes H
Paschalis, Eleftherios I
Gonzalez-Andrades, Miguel
Kong, Jing
Chodosh, James
author_sort Sharifi, Sina
collection MIT
description Despite rigorous research, inferior mechanical properties and structural homogeneity are the main challenges constraining hydrogel's suturability to host tissue and limiting its clinical applications. To tackle those, we developed a reverse solvent interface trapping method, in which organized, graphene-coated microspherical cavities were introduced into a hydrogel to create heterogeneity and make it suturable. To generate those cavities, (i) graphite exfoliates to graphene sheets, which spread at the water/ heptane interfaces of the microemulsion, (ii) heptane fills the microspheres coated by graphene, and (iii) a cross-linkable hydrogel dissolved in water fills the voids. Cross-linking solidifies such microemulsion to a strong, suturable, permanent hybrid architecture, which has better mechanical properties, yet it is biocompatible and supports cell adhesion and proliferation. These properties along with the ease and biosafety of fabrication suggest the potential of this strategy to enhance tissue engineering outcomes by generating various suturable scaffolds for biomedical applications, such as donor cornea carriers for Boston keratoprosthesis (BK).
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spelling mit-1721.1/1439682023-06-30T18:49:29Z Graphene-Lined Porous Gelatin Glycidyl Methacrylate Hydrogels: Implications for Tissue Engineering Sharifi, Sina Sharifi, Hannah Akbari, Ali Dohlman, Claes H Paschalis, Eleftherios I Gonzalez-Andrades, Miguel Kong, Jing Chodosh, James Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science Despite rigorous research, inferior mechanical properties and structural homogeneity are the main challenges constraining hydrogel's suturability to host tissue and limiting its clinical applications. To tackle those, we developed a reverse solvent interface trapping method, in which organized, graphene-coated microspherical cavities were introduced into a hydrogel to create heterogeneity and make it suturable. To generate those cavities, (i) graphite exfoliates to graphene sheets, which spread at the water/ heptane interfaces of the microemulsion, (ii) heptane fills the microspheres coated by graphene, and (iii) a cross-linkable hydrogel dissolved in water fills the voids. Cross-linking solidifies such microemulsion to a strong, suturable, permanent hybrid architecture, which has better mechanical properties, yet it is biocompatible and supports cell adhesion and proliferation. These properties along with the ease and biosafety of fabrication suggest the potential of this strategy to enhance tissue engineering outcomes by generating various suturable scaffolds for biomedical applications, such as donor cornea carriers for Boston keratoprosthesis (BK). 2022-07-22T15:10:29Z 2022-07-22T15:10:29Z 2021 2022-07-22T15:02:25Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/143968 Sharifi, Sina, Sharifi, Hannah, Akbari, Ali, Dohlman, Claes H, Paschalis, Eleftherios I et al. 2021. "Graphene-Lined Porous Gelatin Glycidyl Methacrylate Hydrogels: Implications for Tissue Engineering." ACS Applied Nano Materials, 4 (11). en 10.1021/ACSANM.1C03201 ACS Applied Nano Materials Creative Commons Attribution-Noncommercial-Share Alike http://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf American Chemical Society (ACS) PMC
spellingShingle Sharifi, Sina
Sharifi, Hannah
Akbari, Ali
Dohlman, Claes H
Paschalis, Eleftherios I
Gonzalez-Andrades, Miguel
Kong, Jing
Chodosh, James
Graphene-Lined Porous Gelatin Glycidyl Methacrylate Hydrogels: Implications for Tissue Engineering
title Graphene-Lined Porous Gelatin Glycidyl Methacrylate Hydrogels: Implications for Tissue Engineering
title_full Graphene-Lined Porous Gelatin Glycidyl Methacrylate Hydrogels: Implications for Tissue Engineering
title_fullStr Graphene-Lined Porous Gelatin Glycidyl Methacrylate Hydrogels: Implications for Tissue Engineering
title_full_unstemmed Graphene-Lined Porous Gelatin Glycidyl Methacrylate Hydrogels: Implications for Tissue Engineering
title_short Graphene-Lined Porous Gelatin Glycidyl Methacrylate Hydrogels: Implications for Tissue Engineering
title_sort graphene lined porous gelatin glycidyl methacrylate hydrogels implications for tissue engineering
url https://hdl.handle.net/1721.1/143968
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