Natural_Biomaterials - Natural Biomaterials Prepared By...

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Natural Biomaterials Prepared By Nasser-Eddin M., Phd MECH 634
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Natural Vs synthetic Natural materials are synthesized by an organism or plant and are typically more chemically and structurally complicated than synthetic materials. Applications
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Wound Dressing Cell scaffold Generation of tissue via tissue engineering is a very promising technique in the life sciences. It may significantly reduce the problems of donor site scarcity, immune rejection and pathogen transfer. Most tissue engineering uses a porous scaffold, which serves as a template for cell proliferation and ultimately tissue formation. Three-dimensional control of pore size and morphology, mechanical properties, degradation and resorption kinetics, and surface topography of the scaffold is critical for controlling cellular colonization rates and organization within an engineered scaffold/tissue construct.
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Natural Biomaterials- Bone Grafts In 1998, slightly more than 300,000 bone graft procedures were performed in the United States. Currently, this figure exceeds 500,000 in the US and approximately 2.2 million worldwide (Giannoudis et al, 2005). The estimated cost of these procedures approaches $2.5 billion per year. Harvesting the autograft requires an additional surgery at the donor site that can result in its own complications, such as inflammation, infection, and chronic pain that occasionally outlasts the pain of the original surgical procedure. Quantities of bone tissue that can be harvested are also limited, thus creating a supply problem.
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Of the 300,000 procedures performed in 1998, 9 of 10 involved the use of either autograft
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Natural_Biomaterials - Natural Biomaterials Prepared By...

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