Formation of bone electrets and their charge decay characteristics.

ABSTRACT

Thermo electret, electro electret and magneto electret phenomena have been examined for bone, collagen and apatite. It is found that they acquired a saturation charge of about 10(-6) C/cm2--10(-8) C/cm2 when subjected to moderate temperature, electric and high magnetic field treatments. A significant fraction of charge developed is found to be retained in these materials for a period of several months. A possible explantation for the mechanism at work is suggested. A relationship between energy storage and development of bone is perceived.