Tohoku University Technology: Titanium alloy for biomedical application: T19-802
High antibacterial property, biocompatibility and a low Young's modulus close to the cortical bone
A requirement for biocompatible Ti alloy for orthopedic implants is to suppress stress shielding, which occurs because of the large difference between Young’s moduli of the prosthetic stem and the cortical bone (10–30 GPa). Meanwhile, conventional autoclave sterilization before implant exhibits the discoloration and heaviest particulate contamination, and some multiple sterilization regimens for metallic materials may pose serious biological concerns. The present invention can provide the necessary functions to a Ti implant material without impairing the low Young's modulus of Ti alloy. It possesses high antibacterial properties with a high antibacterial activity value above 2.0 from the antibacterial test (JIS R 1702) and osseointegration fromhydroxyapatite formation on the surface of Ti alloy in simulated body fluid.
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The revenue generated from technology transfer is reinvested into universities and researchers as new research funding, which is used to create further research outcomes. To ensure the smooth operation of this cycle, known as the "Intellectual Creation Cycle," we will actively promote technology transfer. The types of seeds we handle include patents, know-how, databases, and programs. We have established a collaborative framework by concluding basic technology transfer agreements with the following universities (as of June 1, 2025): - Tohoku University - Hirosaki University - Iwate University - Akita University - Fukushima University - Yamagata University - Tohoku Gakuin University - Iwate Medical University - Fukushima Medical University - Aizu University - Miyagi University - Hokkaido University - Muroran Institute of Technology - Showa Medical University
