Identifying the Vaccinia Virus with the Use of a Nanowire Silicon-on-Insulator Biosensor

The results of identifying the vaccinia virus with the use of nanowire biosensors manufactured on the basis of silicon-on-insulator (SOI) films were presented. In our experiments, the vaccinia virus, the LIVP strain from the collection of the State Research Center of Virology and Biotechnology VECTOR of the Federal Service for Surveillance on Consumer Rights Protection and Human Wellbeing, and the rabbit blood serum containing specific polyclonal antibodies to the vaccinia virus were used. As shown by our studies, the polyvalent blood serum was electrically neutral at the sensor surface–viral suspension phase interface, the vaccinia virus was positively charged, and polyvalent blood serum–vaccinia virus vaccine complexes had a negative effective charge.