MUMBAI, India, Oct. 5 -- Intellectual Property India has published a patent application (202641114364 A) filed by Vallurupalli Nageswara Rao Vignana Jyothi Institute Of Engineering And Technology on September 24, 2026, for A Biodegradable Zinc-Magnesium-Fluorapatite Composite With Enhanced Tribological Performance And Surface Bioactivity For Temporary Orthopedic Implants.
Inventor includes Dr. Ch Priyadarsini.
The application for the patent was published on October 02, 2026, under issue no. 40/2026.
Abstract: ABSTRACT [0073] This study investigates the microstructural and chemical properties of a Zinc-Magnesium-Fluorapatite (Zn-Mg-FAp) composite designed for temporary biomedical implants. the research evaluates the material’s structural integrity through XRD, EDX, and SEM analysis. Microstructural analysis through EDX reveals oxidation on the greater part of the surface, implying the formation of an oxide layer, whereas XRD imaging displayed the successful combination of the FAp reinforcing phase without disturbing the metallic lattice stability. We examined the tribological behaviour and wear morphology of the Zn-Mg-FAp hybrid composites to determine how fluorapatite reinforcement will alter its behaviour in relation to various loading conditions. Pin-on-disc tests revealed that specific wear rate at each load reduced with increase in normal load in all specimens. The 5% FAp composite was the one that provided the best wear resistance particularly at the high loads. The friction data showed that the 1% FAp sample although unstable at lower loads still had the most stable and lowest coefficient of friction at 200N. [0074] Our morphological study affirmed that the wear mechanism is dominated by abrasive processes of deep grooving, micro-ploughing, flow of material, and localized fracture. Increasing the loads leads to the formation of protective layers, increasing wear resistance while reducing frictional instability. The overlay of the compositions showed that 5% FAp composite was the best of the compositions, although each sample became more stable upon increasing the load. These findings indicate that there is a close relationship between load, reinforcement content, and wear morphology. Corrosion morphology at 100x magnification identified a unique trend in surface topography. It indicates that FAp particles act as localized nucleation sites, providing a more uniform microroughness. These findings suggest that the Zn-Mg-FAp composite offers structural durability as well as surface bioactivity for orthopedic applications. Bioactivity tests have demonstrated that Zn-based alloys exhibit favorable biodegradation rates and inherent biocompatibility, making them suitable candidates for temporary implant applications.
Disclaimer: Curated by HT Syndication.
