TY CONF TI Study of electrical conductivity properties of composite hydrogel for biomedical electronics KW composite hydrogel; biopolymer; carbon nanotubes; electrical conductivity; photopolymerization JO MICROELECTRONICS and INFORMATION SCIENCE-2025 AU Otsupko, E.P. AU Savelyev, M.S. AU Aleksandr, G.Y. PY 2026 PB National Research University of Electronic Technology