Development and electrical characterization Of hydroxyapatite based piezobiocomposite as Well as functionally graded materials

Abstract

newlineLiving bone is an electrically active tissue i.e. it is piezoelectric, pyroelectric and newlineferroelectric. In addition it is also an electret material. These electrical properties facilitate the newlinegrowth of bone tissue as well as fracture healing. This is because, on external stimulation newlinesuch as mechanical or electrical bone develops polarization charges and these charges further newlineassists in various bone metabolisms for remodelling/reconstruction, growth and development newlineof bone tissue. Therefore, development of electrically active materials having similar newlineelectrical characteristics with that of bone is clearly a need of hour. Hydroxyapatite (HA), a newlineceramic biomaterial has been recognized as a potential choice for the prosthetic orthopaedic newlineimplant due to its structural and chemical similarity with the bone apatite. However, synthetic newlineHA possess poor electrical properties. Therefore, the present work attempts to enhance the newlineelectrical properties of HA by means of development of piezobiocomposite as well as newlinefunctionally graded materials.