Formation of Carbon Nanomaterials Layers to Create Passive and Active Implantable Devices for Nerve Tissue Repair

The paper proposes methods of formation of laser-structured layers of carbon nanomaterials to create passive and active implantable devices for nerve tissue repair. It has been established that as a result of exposure to laser radiation with a power of 0.07 W the formation of carbon structures with bound single-walled carbon nanotubes (SWCNTs), reduced graphene oxide (rGO) and <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$\text{TiO}_{2}$</tex> in disordered arrays takes place. It was found that laser exposure increased the electrical conductivity of disordered arrays of SWNTs by <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$\sim 2.5$</tex> times to <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$30.0 \pm 0.8 \text{mSm}$</tex>, disordered hybrid arrays of SWNTs and rGO by <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$\sim 3.2$</tex> times to <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$37.8 \pm 1.2 \text{mSm}$</tex>, and disordered hybrid arrays of SWNTs and rGO coated with <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$\mathrm{TiO}_{2}$</tex> particles by <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">${\sim} \mathrm{1.3}$</tex> times to <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$\mathrm{23.9} {\pm} \mathrm{1.8 mSm}$</tex>. Studies have been conducted with neural tissue cells that show an increase in cell survival on carbon nanomaterial surfaces compared to the control sample. These cellular studies suggest the possibility of using laser-structured layers of carbon nanomaterials for passive and active implantable devices to stimulate neural tissue cell growth and subsequent neural tissue repair.