BIOSENSOR FOR INDICATION OF BIOPATHOGENS Russian patent published in 2022 - IPC G01N27/414 B82Y15/00 

FIELD: fine particles indicating.

SUBSTANCE: invention relates to means for indicating fine particles (FP) of nano and micron size in suspension: proteins, viruses, bacteria and can be used in the field of medicine, virology, microbiology, biotechnology, toxicology, biology. The biosensor for indicating biopathogens includes a silicon crystal in the form of a substrate on which conductive electrodes are located, which are the source and the first drain of the transistor, a sensitive element, which is the first nanowire, made in a thin-film silicon-on-insulator structure on a silicon substrate and placed between two conductive electrodes source and drain electrodes to form a transistor channel, dielectric coatings that provide insulation for the conductive electrodes. In addition, on the silicon substrate on the other side of the source electrode, symmetrically to the first drain electrode, there is a second drain electrode and a second nanowire installed between the source electrode and the second drain electrode, and on both sides of one of the nanowires, a pair of lateral electrodes for dielectrophoretic concentration of viral particles are installed, located with a gap relative to the specified nanowire and with an axial displacement relative to each other, or on both sides of both nanowires, pairs of lateral electrodes are installed for dielectrophoretic concentration of viral particles, located with a gap relative to of these nanowires and with axial displacement relative to each other.

EFFECT: invention provides an increase in the sensitivity of the biosensor for the indication of biopathogens.

2 cl, 1 ex, 6 dwg