caa a22 4500 386337187 CHVBK 20180307111737.0 cr unu---uuuuu 161130e198904 xx s 000 0 eng 10.1557/S0883769400055032 doi S0883769400055032 pii (NATIONALLICENCE)cambridge-10.1557/S0883769400055032 Ion Beam and Plasma Technology for Improved Biocompatible Surfaces [Elektronische Daten] Medical implant devices are being increasingly used to replace or stimulate damaged or diseased body parts. Because the body rejects any foreign matter, these components should appear, to the body, to be of natural or nonforeign material. An obvious approach is to construct prosthetics or other implant devices of "natural” material, such as bone mineral. While this can be done, in practice it is not feasible for large components since bone mineral does not possess sufficient structural or mechanical strength. Furthermore, items such as pacemakers or electrodes cannot be fabricated from bone mineral. Since it is the surface of the medical implant that is in direct contact with the body, one solution in designing the device is to choose the bulk material for mechanical strength or other properties and to hide the surface of the device with a coating of biocompatible material. Since bone mineral is one of the most biocompatible materials known, much effort has been devoted to developing surface treatment processes to deposit this material on prosthetics and other implants. The material bones and teeth are composed of is quite complex. Tooth enamel, itself a coating, is very durable and primarily composed of a hydrated form of calcium phosphate called hydroxylapatite (Ca10(PO4)A(OH)2), or HA. Bones are approximately 60-70% HA. However, it is not sufficient to simply produce a coating with the same chemical constitutents as HA. Copyright © Materials Research Society 1989 Solnick-Legg Hillary Legg Keith MRS Bulletin Cambridge University Press 14/4(1989-04), 27-33 0883-7694 14:4<27 1989 14 MRS https://doi.org/10.1557/S0883769400055032 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1557/S0883769400055032 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Solnick-Legg Hillary NATIONALLICENCE 700 1- Legg Keith NATIONALLICENCE 773 0- MRS Bulletin Cambridge University Press 14/4(1989-04), 27-33 0883-7694 14:4<27 1989 14 MRS CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge