Recently, the Korea Electric Research Institute (KERI), an electric power research institute affiliated to the National Institute of Science and Technology of the Ministry of Science, Technology and Information, said that the research team of the Electric Medical Device Research Center has developed a surface treatment of titanium materials using femtosecond lasers. Technology.
Femto second (Femto second) laser refers to a laser system technology, the resulting pulse (Pulse) has an extremely short time, which is only equivalent to one gigasecond, which is also a research KERI is proud of Results. The pulse repetition rate and average output rate are high, and long-term operation can also ensure a stable output rate, which is expected to be applied to the industrial field of ultra-fine processing.
One of the key elements of femtosecond laser commercialization is the processing speed. In order to use the femtosecond laser for micromachining, the existing technology mainly processes materials at a slow speed, but this method requires a lot of time and is applied in industrial applications. There are still considerable difficulties.
The technology developed by KERI not only maintains the precision of the femtosecond laser, but also ensures a faster processing speed. It is the best surface treatment system. The research team used a lens with a wide field of view and passed a high-speed rotating mirror surface. In combination, the femtosecond laser can also perform stable surface treatment over a wide area.
KERI applies femtosecond laser to the surface treatment of titanium materials, not only can improve the inherent performance of titanium materials, but also hope to produce functional surfaces. Generally speaking, titanium is light in weight, high in strength, non-toxic, and can be applied to the human body, and its application in the medical field has become more common. Using femtosecond laser, nanometer-sized tissue structure can be prepared on the surface of titanium material, so that the surface has hydrophilic or hydrophobic properties, and becomes a material with better therapeutic effect.
It is worth mentioning that the technology developed by KERI is expected to produce considerable effects in the field of dental implants or in vivo medical devices. The femtosecond laser-treated hydrophilic titanium material can be prepared into dental implants, which have high affinity with the human body and can achieve stable fusion with human bones, thereby greatly shortening the treatment cycle of patients; on the contrary, titanium after hydrophobic treatment The material can be prepared as a medical device for transplantation in vivo, which helps to reduce the foreign body reaction in the patient (the reaction between the substance placed in the body and the human body).
Chief researcher Zheng Baoshu, who participated in the research and development, said that in order to achieve the world’s leading level of femtosecond laser technology, KERI is conducting research in different basic discipline application fields. Using this technology for titanium surface treatment has great potential in the field of medical devices. So it has attracted much attention. Through joint research in the fields of laser, materials, optics, and processing, to maximize the advantages of femtosecond lasers, build the best surface treatment system.
At present, the technology has been transferred to a material company and it is well prepared for commercialization. In order to achieve the true rooting of technology, the KERI research team will continue to provide technical advice and necessary support.