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A novel collagen aerogel with relevant features for topical biomedical applications
Citation Link: https://doi.org/10.15480/882.9452
Publikationstyp
Journal Article
Date Issued
2024-07
Sprache
English
TORE-DOI
Journal
Volume
89
Issue
7
Citation
ChemPlusChem 89 (7): e202400122 (2024)
Publisher DOI
Scopus ID
Publisher
Wiley
Peer Reviewed
true
Collagen-based aerogels have great potential for topical biomedical applications. Collagen's natural affinity with skin, biodegradability, and gelling behavior are compelling properties to combine with the structural integrity of highly porous matrices in the dry form (aerogels). This work aimed to produce a novel collagenbased aerogel and to perform the material's solid-state and
physicochemical characterization. Aerogels were obtained by performing different solvent exchange approaches of a collagengelled extract and drying the obtained alcogels with supercritical CO2. The resulting aerogels showed a sponge-like structure with a relatively dense mesoporous network with a specific surface area of 201–203 m2/g, a specific pore volume of 1.08–1.15 cm3/g, and a mean pore radius of ca. 14.7 nm. Physicochemical characterization confirmed that the obtained aerogels are composed of pure collagen, and the aerogel production process does not impact protein tertiary structure. Finally, the material swelling behavior was assessed at various pH values (4, 7, and 10). Collagen aerogels presented a high water uptake capacity up to ~2700 wt.%, pH-dependent stability, and swelling behavior in aqueous media. The results suggest that this collagen aerogel could be a promising scaffold candidate for topical biomedical applications.
physicochemical characterization. Aerogels were obtained by performing different solvent exchange approaches of a collagengelled extract and drying the obtained alcogels with supercritical CO2. The resulting aerogels showed a sponge-like structure with a relatively dense mesoporous network with a specific surface area of 201–203 m2/g, a specific pore volume of 1.08–1.15 cm3/g, and a mean pore radius of ca. 14.7 nm. Physicochemical characterization confirmed that the obtained aerogels are composed of pure collagen, and the aerogel production process does not impact protein tertiary structure. Finally, the material swelling behavior was assessed at various pH values (4, 7, and 10). Collagen aerogels presented a high water uptake capacity up to ~2700 wt.%, pH-dependent stability, and swelling behavior in aqueous media. The results suggest that this collagen aerogel could be a promising scaffold candidate for topical biomedical applications.
DDC Class
660: Chemistry; Chemical Engineering
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ChemPlusChem - 2024 - Batista - A novel collagen aerogel with features relevant for topical biomedical applications.pdf
Type
Main Article
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1.17 MB
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Adobe PDF