Recent trends on bioimplant materials: A review

The compound annual growth rate (CAGR) of bioimplant market by 2023 is expected to be 8.6%. Recently it is reported that the bio implant market value is exceeding 100,000 million USD. The intriguing factors are namely, population outburst, increasing cases of chronic diseases worldwide and lifestyle disorders, leading to the necessity of invasive surgeries. Moreover, other major contributing factors registered worldwide, are increase in road accidents and age-related illness causing inevitable surgeries. The bioimplant is a prosthesis designed and developed to assist the human physiological functions. As the alien implant to the body, the prime importance of the materials by which the implant is made, should possess a very good compatibility with human tissues and bodily fluids. In the past several decades many materials including polymers and metallic materials have been utilized and to the matter of fact most of them found to be inefficient in developing a good compatibility with human physical system due to various factors. Hence there is a need for design and development of metal-based alloys with proper alloying element combinations to achieve maximum biocompatibility. This paper systematically reviews the metallic materials which are considered for the bio implant applications in terms of biocompatibility, mechanical strength and durability in recent times. The review clearly suggest that the proper design of Magnesium based alloys with appropriate alloying elements might lead to a development of bioimplant material of maximum compatibility with human body system, desired mechanical properties and degradation behaviour. (c) 2021 Elsevier Ltd. All rights reserved. Selection and peer-review under responsibility of the scientific committee of the International Conference on Smart and Sustainable Developments in Materials, Manufacturing and Energy Engineering. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).