METHOD FOR DETECTING MICROBIAL AND VIRAL CONTAMINATION OF SOLUTIONS AND BIOLOGICAL FLUIDS Russian patent published in 2018 - IPC G01N33/48 G01N33/15 B82B3/00 

FIELD: medicine.

SUBSTANCE: invention refers to microbiology, namely to a method for detecting a contamination of solutions and biological fluids. Substance of the method consists in detecting the biological objects containing microorganisms or viruses by means of metal nanoparticles formed in situ from respective metal salts introduced into the analysed object, and analysing the dynamics of spectral characteristics of the forming nanoparticles. In the presence of microbial cells for the period of 20-40 minutes, the size of the forming metal nanoparticles reaches more than 15 nm; in the presence of viruses, the size of the forming nanoparticle reaches 6 nm, whereas the absence of any contamination of the analysed objects is shown by the size of the forming nanoparticle nuclei not exceeding 2 nm.

EFFECT: using the declared method enables the highly sensitive, reliable, technically simple and fast detection of the microbial contamination of solutions and biological fluids.

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