| Title |
A Novel Collagen Aerogel with Relevant Features for Topical Biomedical Applications |
| ID_Doc |
17745 |
| Authors |
Batista, MP; Schroeter, B; Fernández, N; Gaspar, FB; Bronze, MD; Duarte, AR; Gurikov, P |
| Title |
A Novel Collagen Aerogel with Relevant Features for Topical Biomedical Applications |
| Year |
2024 |
| Published |
Chempluschem, 89, 7 |
| DOI |
10.1002/cplu.202400122 |
| Abstract |
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 collagen-based aerogel and to perform the material's solid-state and physicochemical characterization. Aerogels were obtained by performing different solvent exchange approaches of a collagen-gelled 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 m(2)/g, a specific pore volume of 1.08-1.15 cm(3)/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 similar 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. |
| Author Keywords |
Porous biomaterials; Collagen tertiary structure; Supercritical CO2 drying; Solid-state; physicochemical characterization |
| Index Keywords |
Index Keywords |
| Document Type |
Other |
| Open Access |
Open Access |
| Source |
Science Citation Index Expanded (SCI-EXPANDED) |
| EID |
WOS:001222928700001 |
| WoS Category |
Chemistry, Multidisciplinary |
| Research Area |
Chemistry |
| PDF |
https://onlinelibrary.wiley.com/doi/pdfdirect/10.1002/cplu.202400122
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