Biomaterials in Tissue Engineering
Biomaterials are generally prepared from nature or synthesized material in the labs or in research institutes using a variety of chemical methods with the aid of metallic components, polymers, ceramics or composite materials. They are often used and/or adjusted for a medical application, and thus comprise whole or part of a living structure or biomedical device which performs, augments, or replaces a natural function. Such functions may be benign, like being used for a heart valve, or maybe bioactive with a more interactive functionality such as hydroxyl-apatite coated hip implants. Biomaterials are also used in dental applications, surgery, and drug delivery. For example, a construct with impregnated pharmaceutical products can be placed into the body, which permits the prolonged release of a drug over an extended period.