tissue engineering

tissue engineering

      scientific field concerned with the development of biological substitutes capable of replacing diseased or damaged tissue in humans. The term tissue engineering was introduced in the late 1980s. By the early 1990s the concept of applying engineering to the repair of biological tissue resulted in the rapid growth of tissue engineering as an interdisciplinary field with the potential to revolutionize important areas of medicine.

      Tissue engineering integrates biological components, such as cells (cell) and growth factors, with engineering principles and synthetic materials. Substitute tissues can be produced by first seeding human cells onto scaffolds, which may be made from collagen or from a biodegradable polymer. The scaffolds are then incubated in mediums containing growth factors, which stimulate the cells to grow and divide. As cells spread across the scaffold, the substitute tissue is formed. This tissue can be implanted into the human body, with the implanted scaffold eventually being either absorbed or dissolved.

      Examples of tissues that are candidates for tissue engineering include skin, cartilage, heart, and bone. The production of skin substitutes has played an important role in improving the success of skin graft surgeries, especially for complex wounds (wound) such as burns (burn).

Kara Rogers
 

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Universalium. 2010.

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