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wear out within the lifetime of the patient. Nanocrystalline zirconia is hard, wear-
resistant, and biocompatible. Nanocrystalline silicon carbide is used as an ideal
material for articial heart valves primarily because of its low weight, high strength,
and inertness. Most of the nanomaterials are prepared with the help of aerogels via
sol–gel techniques.
17.15 CONCLUSION
This chapter focused on the synthesis, characterization, and applications of func-
tional nanomaterials. With basic knowledge of physics, chemistry, and its funda-
mental mechanisms, functions on the molecular nanoscale will be stressed to induce
changes in properties. ...