A microstructured composite material made of collagen hydrogel (matrix) and silk fibroin microfibers (randomly oriented reinforcing fibers) is investigated in order to conjugate the mechanical resistance of fibroin with the suitable biological performance of collagen to design new scaffolds for vascular tissue engineering. Results show that fibroin microfibers and collagen fibrils have suitable interfacial adhesion, and the scaffold exhibits improved mechanical properties if compared with a pure collagen hydrogel. Furthermore, the overall biological performance is improved.
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http://dx.doi.org/10.1002/mabi.201200060 | DOI Listing |
Molecules
November 2024
School of Pharmacy, Jiangsu Ocean University, Lianyungang 222005, China.
Silk microfiber scaffolds have garnered increasing interest due to their outstanding properties, with degumming being the process used to extract the sericin from the cocoon. In the present study, an attempt to tune the biodegradation period of silk through degumming with various sodium borohydride (NaBH) concentrations and degumming times was studied. We considered the process, the number of baths used, and the salt concentration.
View Article and Find Full Text PDFInt J Biol Macromol
December 2024
Department of Orthopedics, The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215004, China. Electronic address:
Silk-based biodegradable materials play an important role in tissue engineering, especially in the field of bone regeneration. However, while optimizing mechanical properties and bone regeneration characteristics, modified silk fibroin (SF)-based materials also increase the complexity of scaffold systems, which is not conducive to clinical translation. In this study, we first added synthetic biomimetic mineralized collagen (MC) particles to SF-based materials to improve the bone regeneration properties of the scaffolds and simultaneously regulated the degradation rate of the scaffolds to match the bone regeneration rate.
View Article and Find Full Text PDFBiomater Adv
January 2025
Terasaki Institute for Biomedical Innovation, Los Angeles, CA, USA. Electronic address:
Volumetric muscle loss (VML) presents a significant challenge in tissue engineering due to the irreparable nature of extensive muscle injuries. In this study, we propose a novel approach for VML treatment using a bioink composed of silk microfiber-reinforced silk fibroin (SF) hydrogel. The engineered scaffolds are predesigned to provide structural support and fiber alignment to promote tissue regeneration in situ.
View Article and Find Full Text PDFChempluschem
September 2024
Institute for Smart Biomedical Materials, School of Materials Science & Engineering, Zhejiang Sci-Tech University, Hangzhou, 310000, PR China.
The antibacterial properties of modified silk fibroin microfibers (SF MFs) have been widely studied. Among various modifications, integration of silver nanoparticles (Ag NPs) and SF MFs has garnered significant attention due to the broad-spectrum antibacterial activities and long-term antibacterial effect of Ag nanomaterials. However, the traditional introduction of reducing agents or other additives during the synthesis of Ag-SF composite MFs potentially affects their structure and antibacterial properties.
View Article and Find Full Text PDFBiomater Sci
October 2024
Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, The Netherlands.
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