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Rheological and Microstructural Evaluation of Collagen-Based Scaffolds Crosslinked with Fructose
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Rheological and Microstructural Evaluation of Collagen-Based Scaffolds Crosslinked with Fructose
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Rheological and Microstructural Evaluation of Collagen-Based Scaffolds Crosslinked with Fructose
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Journal Article
Rheological and Microstructural Evaluation of Collagen-Based Scaffolds Crosslinked with Fructose
2021
Overview
In recent years, tissue engineering research has led to the development of this field by designing scaffolds with better properties that can fulfill its purpose of better and faster tissue regeneration, consequently improving people’s quality of life. Scaffolds are matrices, predominantly composed of polymeric materials, whose main function is to offer support for cell adhesion and subsequent growth, leading to the regeneration of the damaged tissue. The widely used biopolymer in tissue engineering is collagen, which is the most abundant protein in animals. Its use is due to its structure, biocompatibility, ease of modification, and processability. In this work, collagen-based scaffolds were developed with different concentrations and processing techniques, by obtaining hydrogels and aerogels that were characterized with an emphasis on their morphology and mechanical properties. Moreover, fructose was added in some cases as a chemical crosslinking agent to study its influence on the scaffolds’ properties. The obtained results revealed that the scaffolds with higher collagen concentrations were more rigid and deformable. Comparing both systems, the aerogels were more rigid, although the hydrogels were more deformable and had higher pore size homogeneity. Fructose addition produced a slight increase in the critical strain, together with an increase in the elastic modulus.
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