The tensile strength, yield strength, elastic modulus, corrosion, creep, and hardness are some of the most important properties of biomaterials that should be carefully studied and evaluated before implantation.

Biomaterials play an integral role in medicine today—restoring function and facilitating healing for people after injury or disease.

Biomaterials may be natural or synthetic and are used in medical applications to support, enhance, or replace damaged tissue or a biological function.

The most important requirements for a good biomaterial are good biocompatibility, higher resistance to corrosion and wear and better osseointegration.

Biomaterials must meet several criteria, such as excellent biocompatibility, adequate mechanical compatibility, high corrosion and wear resistance

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https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9960308/

Natural biomaterials are materials extracted from living organisms or their by-products. These materials have many advantages, such as non-toxicity, biocompatibility, and biodegradability, the use of natural biomaterials has steadily increased due to the high demand for medical applications. These materials, including collagen, chitosan, and alginate, have been successfully used as hydrogels, scaffolds, matrices, and implants in tissue engineering, wound management, drug delivery, and nanotechnology. Due to their biocompatible and biodegradable properties, the use of natural biomaterials may lead to cost savings in healthcare because they can be safely absorbed by the body without additional surgeries. However, biodegradability is also a disadvantage of natural materials because they may not be as durable as traditional synthetic materials and can easily suffer from wear and tear due to intensive interaction with the body. Despite these limitations, the biocompatibility and non-toxicity of natural biomaterials can outweigh their biodegradability disadvantages in many medical applications. Therefore, more studies are needed to investigate the effect of biomaterial treatment and to develop methods to control the degradation rate of these materials.

(Citation from the above link).