Collagen-Based Biomaterials for Wound Healing Applications
Summary
Collagen, the predominant structural protein in mammalian extracellular matrix, has emerged as a cornerstone in the design of biomaterials for wound healing. Its intrinsic biocompatibility, ability to support cell adhesion and proliferation, and gentle degradation into native peptides make it ideally suited for a broad spectrum of wound interventions. These include spongious dressings, injectable hydrogels and composite scaffolds that combine collagen with polysaccharides, ceramics or antimicrobial agents. Control of scaffold architecture—pore size, interconnectivity and mechanical stiffness—allows modulation of cell infiltration, angiogenesis and matrix remodelling. Chemical cross-linking strategies, employing agents such as glutaraldehyde, genipin or natural phenolics, enhance tensile strength and slow enzymatic degradation to match tissue repair kinetics. Marine-derived collagens and recombinant variants address concerns over immunogenicity and pathogen transmission, while advanced fabrication methods—from lyophilisation and freeze-drying to electrospinning and 3D bioprinting—enable precise tailoring of form and function. Collectively, these advances offer routes to dressings that accelerate haemostasis, prevent infection, deliver bioactive molecules and ultimately restore skin integrity with minimal scarring.
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Collagen-Based Biomaterials for Wound Healing Applications publication trend
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Technical terms
Extracellular matrix (ECM): The complex network of proteins and polysaccharides providing structural and biochemical support to surrounding cells.
Cross-linking: Chemical or physical process that connects polymer chains, improving mechanical strength and controlling degradation rate.
Hydrogel: Water-swollen, three-dimensional polymer network capable of mimicking tissue softness and facilitating cell encapsulation.
Scaffold porosity: The size and connectivity of void spaces within a biomaterial, critical for cell infiltration and nutrient diffusion.
Biocompatibility: The ability of a material to perform with an appropriate host response, without causing toxicity or immunogenicity.
References
- Effects of Phenolics on the Physicochemical and Structural Properties of Collagen Hydrogel. Polymers (2023).
- Preparation of Super Absorbent and Highly Active Fish Collagen Sponge and its Hemostatic Effect in vivo and in vitro. Frontiers in Bioengineering and Biotechnology (2022).
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