Год выпуска: 2015 Автор: Malik Sajjad Mehmood,Masroor Ikram and Tariq Yasin Издательство: LAP Lambert Academic Publishing Страниц: 144 ISBN: 9783659670909
Описание
Ultra-high molecular weight polyethylene (UHMWPE) is the material of choice in total joint replacement for hip cup and knee plateau because of its bio compatibility. The devices made of UHMWPE should be sterilized before implantation within the body and most reliable method for the purpose is gamma irradiation. However, sterilization with gamma rays generates free radicals which remained inside the crystalline core of UHMWPE. These radicals are the precursor of oxidation degradation of UHMWPE thus limiting the lifetime of artificial joints.We believe that, to eliminate these free radicals completely, researchers and peoples related with orthopaedic industry must have to understand the relation of residual radicals with three phase morphology (crystalline, amorphous, and interphase) of UHMWPE. For this purpose, in this book we have used different techniques such as ESR spectroscopy, wide angle X-ray diffraction, and Raman spectroscopy to have comprehensive understanding on the...
Спешу Вас поблагодарить за выполненную работу, я сегодня защитилась на 5, комиссии очень понравился диплом, в частности предложения по улучшению процесса кредитования в Банке )!!! Огромное Вам спасибо, Вы делаете очень доброе дело!!))))) Буду советовать Вас своим друзьям и знакомым! Еще раз спасибо!!! С уважением, Ольга :)