<i>Viburnum opulus</i> L. extract double effect on <i>E.Coli</i> detection using SERS

This article presents the results of studies on the effects of <i>Viburnum opulus</i> extract on <i>Escherichia Coli</i> (<i>E.Coli</i>). It has been shown that the aqueous extract, when exposed to laser irradiation, produces cell growth and activation of cellular metabolism. It has been established that under the action of laser irradiation the process is pronounced. When exposed to an aqueous-alcoholic extract, it was found that when exposed to laser irradiation, the intensity of phenylalanine vibrations decreases, which indicates the processes of apoptosis in the cell. It was shown that 1003 cm<sup>-1</sup> phenylalanine band was the main characteristic band, according to cell metabolism.