Modification of the titanium surface of biomedical electronics to improve electrophysical properties
Efremova K. D.1,2, Kuznetsova E. A. 1, Vasilevsky P. N. 1, Selishchev S. V. 1, Gerasimenko A. Yu. 1,2
1 Institute of Biomedical Systems, National Research University “Moscow Institute of Electronic Technology”, Moscow, Zelenograd, Russia
2 Institute of Bionic Technologies and Engineering, I.M. Sechenov First Moscow State Medical University, Moscow, Russia
Email: kristal_p@mail.ru
Modification of the titanium surface for biomedical electronics in order to improve electrophysical properties was performed by forming conductive coatings based on single-walled carbon nanotubes (CNTs). This study investigates how the preparation parameters of carbon-dispersed media affect the properties of the coatings they form. The CNTs were stabilized using various surfactants and subjected to ultrasonic homogenization and centrifugation with varying key parameters. The homogeneity of the dispersed media was assessed by optical spectroscopy and dynamic light scattering. The electrophysical properties of the manufactured coatings were investigated by measuring the surface resistance. It has been found that optimization of processing parameters, such as power and homogenization time, contributes to the destruction of agglomerates, increases the stability of dispersions and improves the electrical conductivity of the formed coatings. Keywords: single-walled carbon nanotubes, surfactants, specific electrical conductivity, conductive coatings, titanium surface.
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