Australian researchers use 3D printed diamond implants for biomedical and orthopedics for the first time

Abstract For the first time, Australian researchers have made breakthroughs in the use of diamond power, and the way humans receive biomedical implants may be fundamentally improved. For the first time, researchers from the Royal Melbourne Institute of Technology have successfully coated 3D printed titanium with diamond...

For the first time, Australian researchers have made breakthroughs in the use of the power of diamonds, and the way humans receive biomedical implants may be fundamentally improved. For the first time, researchers from the Royal Melbourne Institute of Technology have successfully applied 3D printed titanium implants with diamonds.

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This is the first step in 3D printed diamond implants for biomedical and orthopedics - surgery involving the human musculoskeletal system. Although titanium provides fast, accurate, and reliable materials for medical grade and patient-specific implants, our bodies sometimes refuse to use this material. This is due to the fact that the compound on titanium prevents tissue and bone from interacting effectively with biomedical implants. Synthetic diamonds provide an affordable solution to this problem.

The breakthrough was made by biomedical engineer Dr. Kate Fox and his team at the RMIT School of Engineering. The coating was fabricated at the Melbourne Nano Manufacturing Center by a microwave plasma process. The titanium scaffold is combined with diamond to form a biomaterial. "It will take several years for this technology to take place, and many steps are needed before patients can use it," Fox said. “But what we did was the first step, which was a crucial step in a long and unbelievable journey.”

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Dr. Aaqil Rifai, a Ph.D. researcher, is working with Fox on the new technology. "Diamond is very effective because carbon is a major component of the body. Carbon has incredible biocompatibility," Rifai said. “Our body is very easy to accept diamonds and use it as a platform for complex material interfaces.”

In addition to orthopedics, diamonds are used to coat cardiovascular stents - catheters that help keep heart arteries open - as well as bionics and prostheses. Researchers are currently focusing on how to apply this technology to orthopedics.

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“3D printing is a revolutionary revolution in modern times. With 3D printing, we can design specific medical grade implants. This technology is fast, accurate, reliable and labor-saving.” Rifai said: “The scalability of 3D printing is fast. Growth, so we can foresee that in the near future, diamond coatings will become more and more common in orthopedics."

Diamond is one of the special materials in nature, with the highest hardness, low friction coefficient, high elastic modulus, high thermal conductivity, high insulation, wide energy gap, high acoustic propagation rate and good chemical stability, as shown in the following table. Although natural diamonds have these unique properties, they have always existed only in the form of gemstones, and their versatility and rarity greatly limit their applications. The CVD diamond film prepared by Luoyang Yuxin Diamond combines these excellent physical and chemical properties, and the cost is lower than that of natural diamond. It can prepare various geometric shapes and has broad application prospects in the fields of electronics, optics and machinery.

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