• Scientists at the International Advanced Research Centre for Powder Metallurgy and New Materials (ARCI), under the Department of Science & Technology (DST) has developed new generation Iron-Manganese based alloys for biodegradable metal implants for use in humans.
• Iron-Manganese based alloy Fe-Mn (having Mn composition of more than 29% by weight) is a promising biodegradable metallic implant which exhibits single austenitic phase (non-magnetic form of iron) with MRI compatibility.
• The alloy also showed a degradation rate in the range of 0.14-0.026 mm per year in the simulated body fluid, which means that the Fe-Mn alloy exhibits mechanical integrity for 3-6 months and completely disappears from the body in 12-24 months.
• The newly developed Fe-Mn based alloys are suitable for biodegradable stent and orthopedic implant applications.
• These Biodegradable materials (Fe, Mg, Zn, and polymer) can participate in the healing process and then degrade gradually by maintaining the mechanical integrity without leaving any implant residues in the human body.
• These are better alternatives to currently used metallic implants that remain permanently in the human body and can cause long-term side effects like systemic toxicity, chronic inflammation, and thrombosis.
Mains Paper 3: Science and Tech
Prelims level: Biodegradable metal implants
Mains level: Details about the story