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Название: Bioceramics. Properties, characterizations, and applications
Автор: Park J.B.
Аннотация:
The writing of this book was begun in 1995. A course on “Ceramics and Glasses As
Biomaterials (51:174)” was first offered during 1988 under the Department of Biomedical
Engineering at the University of Iowa. It was largely based on my Biomaterials
Science and Engineering (Plenum, 1984), especially Chapter 9, “Ceramic Implant
Materials.” Needless to say, there have been a multitude of significant new
developments, notably with regard to cubic zirconia, diamond-like carbon, tissue engineering,
and nanotechnology. The use of ceramics in tissue engineering is a logical
extension of bioceramics, as bone and teeth are composed of ceramics and organic
materials. The development of nanotechnology has unlimited potential for future applications.
Already used as gemstones and in laser crystals, employment of bioceramics
in sensory organ implants is promising. Their use means that cochlear implants can
be made without electronic devices to feed sound waves to more than 20,000 nerve
endings, as opposed to the 20 electrodes currently needed to stimulate the same number
of nerves (see Example 11.3). One day we will manufacture a “direct-sensing”
device made with ceramics and organic matter (e.g., collagen) that has piezoelectric
properties. Similarly, electromagnetic wave-sensing ceramics or polymers can be
developed for such “direct transfer” of energy in the eye or the ear and with other
nerve signals.