Study of Organosilicon Plasma Polymer Used in Composite Layers with Biomedical Application

In this work we study the ability of plasma polymer (PP) films obtained from hexamethyldisiloxane(HMDS) on silica glass (SG) to induce hydroxyapatite (HA)‐based composite layers from a mixture of simulated body fluid(SBF) and clear solution of detonation nanodiamond(DND) by a biomimetic process. The grown composites (PPHMDS/HADND) were studied by scanning electron microscopy (SEM), Fourier transform infrared (FTIR) spectroscopy and Rutherford backscattering (RBS) techniques. FTIR spectra of the PPHMDS indicated diminishing of the polymer characteristic bands when the polymer is immersed in DND clear solution. Furthermore, after sample immersion in the SBF‐DND mixture, the FTIR spectra showed the presence of carbonate‐containing HA through the characteristic vibration modes of P‐O in the phosphate group and C‐O in the carbonate group. The formation of HA layers, rich in silica and/or carbon was confirmed by RBS and SEM. The cell viability measured after 7 days on the polymer surface is more then 95% for...