In their work, scientists modified the technology for creating heart bioprostheses from bovine pericardium. Such
This treatment has a downside - the substance catalyzes the development of calcification, the deposition of calcium salts on tissues. As a result, the prosthesis has a limited life.
In a new study, scientists improvedmethod, preventing calcification by additionally modifying the surface of the matrix. The service life of such a prosthesis without the need for replacement has increased to 20 years.
Researchers treated the surface with a “diamond film” - a coating of nanodiamonds. Processing occurs when a bovine pericardium is immersed in an aqueous suspension of nanodiamond powder.
Now the parameters of strength and durability were able to combine. Russian scientists have patented a biological prosthesis based on a bovine pericardium with a suspension of nanodiamonds applied to the surface.
MSU Press Service
Previously, scientists created a heart valve prosthesis that grows with a child and does not require removal when it reaches a certain age.