Hydroxyapatite Coating on Selective Laser Sinter Polyamide Substrate by Electron Beam Deposition

By : Hariharan K, Arumaikkannu G

Page No: 149-157

Abstract
Polyamides 12 (PA-12) has an application in the medical field such as suture materials, scaffolds for tissue engineering and for various medical devices fabrication. More often the medical devices which are produced using PA-12 are addressed to be a bioinert and osseointegration with the host tissue will be in the slower rate. This experimental work aims to improve osseointegration of PA-12 by depositing a layer of bioactive material over the surface, since the surface is the first portion to interact with host tissue. Hydroxyapatite (HA) is a calcium phosphate similar to the human tissue in morphology and composition also it is well known bioactive material. This material has been synthesised by wet chemical precipitation process and deposited over polyamide substrate using Electron Beam Deposition (EBD). Various characterization studies have been carried out on coating and Human Osteosarcoma cells MG-63 were seeded on the coated sample to study its viability. The results revealed that Hydroxyapatite layer was deposited successfully over the PA-12. The coated layer some agglomeration of particles. The cell possesses 92.3% of viability, which may significantly improve the biocompatibility of prostheses and medical devices.

Authors :
Hariharan K : Department of Mechanical Engineering, Dr. Mahalingam College of Engineering and Technology, Pollachi- 642003, India
Arumaikkannu G : Department of Manufacturing Engineering, College of Engineering Guindy, Anna University, Chennai - 600025, India
 

DOI: https://doi.org/10.32381/JPM.2018.35.02.1