Translator Disclaimer
28 December 2019 Sound response of baker’s yeast and aqueous solutions to external influences investigated by interferometry
Author Affiliations +
Abstract

Application of a fiber Fabry–Perot interferometer for studying the sound response of cellular structures and aqueous solutions is discussed. Aqueous suspensions of baker’s yeast and commercial natural drinking water, treated by electrolysis, were applied as models in order to mimic processes in biological tissues and liquids. The distribution of frequency intensities in the acoustic spectrograms yields evaluation of a biological system response to the external exposure. In a yeast suspension, few minutes after the sound irradiation with the frequency of 3 kHz and the sound pressure of 50 to 60 dB, we observed regular fluctuations in the output acoustic signal, with the maximal period of about 100 s. Furthermore, a sound response in the frequency range of 400 to 600 Hz maintained in signals for few minutes after the exposure. The observed results demonstrate that the proposed interferometric sensor has strong potential in biology and medicine since it is quite simple, portable, and highly sensitive device for analyses the sound response of a living system.

© 2019 Society of Photo-Optical Instrumentation Engineers (SPIE) 0091-3286/2019/$28.00 © 2019 SPIE
Lyudmila V. Belovolova, Mikhail I. Belovolov, Mikhail M. Belovolov, and Guzel R. Musina "Sound response of baker’s yeast and aqueous solutions to external influences investigated by interferometry," Optical Engineering 59(6), 061610 (28 December 2019). https://doi.org/10.1117/1.OE.59.6.061610
Received: 22 October 2019; Accepted: 9 December 2019; Published: 28 December 2019
JOURNAL ARTICLE
11 PAGES


SHARE
Advertisement
Advertisement
Back to Top