NUST MISIS experts have created and patented a shape memory alloy based on the iron-manganese-silicon (Fe-Mn-Si) system for biodegradable (degradable) bone implants. Its high biomechanical compatibility with bone tissue and the necessary dissolution rate make it a promising material for use in traumatology, orthopedics and maxillofacial surgery. NUST MISIS reported this to socialbites.ca.
Using biodegradable implants helps avoid repeated surgeries to remove a foreign body from the body. Moreover, classic insoluble implants made of stainless steel, cobalt-chromium, titanium alloys and other traditional materials can lead to negative consequences in the long term: loosening of the implant, wear, limited bone growth, allergic reactions and in some cases even cancer. diseases.
Nowadays, there are magnesium or zinc based materials that can be dissolved in the body. However, the biodegradation rate of magnesium is very high, which causes the integrity of the fixation implant to deteriorate until the bone tissue is completely regenerated. In addition, the decomposition process is accompanied by the release of hydrogen gas, which can be harmful to humans.
Iron-based alloys have better mechanical properties but have lower biodegradability. To eliminate this drawback, scientists used manganese and silicon as alloying elements. In addition, the implant material supports tissue healing and regeneration.
“An important task when developing biodegradable alloys is to correctly choose their dissolution rate to ensure a high level of mechanical properties for the required time until the bone tissue is regenerated and a significant load is placed on the implant. Therefore, during our research, we examined both the mechanical and corrosion-electrochemical behavior of our materials.” “We are examining it in detail.” Yulia Zhukova, leading researcher at the Center for Nanomaterials and Nanotechnology at MISIS University and co-author of the patent, told socialbites.ca.
NUST MISIS experts plan to increase the production of blanks of this alloy for industrial production while maintaining all the necessary qualities.
Previously at NUST MISIS was created Neural network to search for deepfakes in photos and videos.