Analysis and characterization of alumina particles reinforced ultra high molecular weight polyethylene composite for acetabular cup.
Composites of ultra high molecular weight polyethylene (UHMWPE) reinforced with 5, 10 and 15 percent of alumina were prepared by a technique of uniform mixing and moulding. Acetabular cups were produced by compression moulding methods. A new walk simulator was also developed in-house for testing the tribological performances of these cups. The results from walk simulator tests are encouraging. Using a human walk simulator machine we did in vitro wear testing. Characterizations were performed to analyse the microstructure, composition, phase purity and crystalline by using XRD, DSC/TGA. Biocompatibility test was done by cytotoxicity, hemocompatibility and MTT assay methods. Biocompatibility tests gave hemolysis counts with these polymer composites well within the acceptable range and the results indicate a significant improvement in biocompatibility of the polymer composites over the in parent polymers.
Saha
D
D
Mechanical Engineering Department, Jadavpur University, Kolkata, India. dhananjoy@mailcity.com
Bose
P K
PK
Banthia
A K
AK
Dhabal
S
S
D000077:Acetabulum; D000537:Aluminum Oxide / Q000737:chemistry / Q000633:toxicity; D001672:Biocompatible Materials / Q000737:chemistry / Q000633:toxicity*; D002478:Cells, Cultured; D006461:Hemolysis / Q000187:drug effects; D006621:Hip Joint / Q000502:physiology; D006622:Hip Prosthesis; D006801:Humans; D066298:In Vitro Techniques; D008422:Materials Testing; D011095:Polyethylenes / Q000737:chemistry / Q000633:toxicity; D013314:Stress, Mechanical; D016138:Walking
D001672:Biocompatible Materials; D011095:Polyethylenes; C111601:ultra-high molecular weight polyethylene; D000537:Aluminum Oxide