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Rose Bengal Crosslinking to Stabilize Collagen Sheets and Generate Modulated Collagen Laminates

Eckes, Stefanie ; Braun, Joy ; Wack, Julia S. ; Ritz, Ulrike ; Nickel, Daniela ; Schmitz, Katja (2021):
Rose Bengal Crosslinking to Stabilize Collagen Sheets and Generate Modulated Collagen Laminates. (Publisher's Version)
In: International Journal of Molecular Sciences, 21 (19), MDPI, ISSN 1422-0067,
DOI: 10.26083/tuprints-00019265,
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Item Type: Article
Origin: Secondary publication via sponsored Golden Open Access
Status: Publisher's Version
Title: Rose Bengal Crosslinking to Stabilize Collagen Sheets and Generate Modulated Collagen Laminates
Language: English
Abstract:

For medical application, easily accessible biomaterials with tailored properties are desirable. Collagen type I represents a biomaterial of choice for regenerative medicine and tissue engineering. Here, we present a simple method to modify the properties of collagen and to generate collagen laminates. We selected three commercially available collagen sheets with different thicknesses and densities and examined the effect of rose bengal and green light collagen crosslinking (RGX) on properties such as microstructure, swelling degree, mechanical stability, cell compatibility and drug release. The highest impact of RGX was measured for Atelocollagen, for which the swelling degree was reduced from 630% (w/w) to 520% (w/w) and thickness measured under force application increased from 0.014 mm to 0.455 mm, indicating a significant increase in mechanical stability. Microstructural analysis revealed that the sponge-like structure was replaced by a fibrous structure. While the initial burst effect during vancomycin release was not influenced by crosslinking, RGX increased cell proliferation on sheets of Atelocollagen and on Collagen Solutions. We furthermore demonstrate that RGX can be used to covalently attach different sheets to create materials with combined properties, making the modification and combination of readily available sheets with RGX an attractive approach for clinical application.

Journal or Publication Title: International Journal of Molecular Sciences
Journal volume: 21
Number: 19
Publisher: MDPI
Collation: 18 Seiten
Classification DDC: 500 Naturwissenschaften und Mathematik > 540 Chemie
Divisions: 07 Department of Chemistry > Fachgebiet Biochemie
Date Deposited: 06 Aug 2021 07:28
Last Modified: 06 Aug 2021 07:28
DOI: 10.26083/tuprints-00019265
Corresponding Links:
URN: urn:nbn:de:tuda-tuprints-192659
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/19265
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