Abstract
A biosensor based on a polyethylene terephthalate track membrane coated with silver nanoparticles is proposed for the detection of influenza A and B viruses using aptamers for specific sorption of the viruses on the membrane surface, as well as for the introduction of a Raman-active or fluorescent label in the complex. The analytical signal was recorded using a Raman spectrometer, observing the effects of surface-enhancing of the intensity of optical responses from the labels.
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