Synthesis Of Hydroxyapatite Nanocomposite Reinforced With 2D Boron Nitride For Load Bearing Orthopedic Applications

Abstract

Hydroxyapatite Ca10(PO4)6(OH)2 is structurally and chemically similar to mineral phase of natural bone and is used in bone implants. In this project, bioactive and biocompatible hydroxyapatite was synthesized by using eggshells as a calcium precursor. Microwaves were used instead of the conventional heating method which greatly reduces the cost and time required to produce it. Hydroxyapatite is largely used in bone implants, but its low flexural strength limits its use where implants undergo flexural stress. The aim of this project was to remove this deficiency of hydroxyapatite by reinforcing it with 2D boron nitride. Thus nanocomposite will gain its strength from 2D boron nitride and maintain the biocompatibility due to hydroxyapatite. It will ensure the use of hydroxyapatite in implants where flexural stress is involved such as total hip replacement. The nanocomposite formed in this way can either be used in bone scaffold or as a coating on metal implants providing the required mechanical properties with added benefits of rapid synthesis and low-cost processing.