UDC 534:535

D.V. Orda-Zhigulina, M.V. Orda-Zhigulina, I.B. Starchenko,
D.A. Kravchuk

In modern biomedical research we can see the tendency using more and more non-invasive technologies using new diagnostic method based on the safe for human physical effects, for example, optoacoustic effect. In this paper described the experimental set for studying the spectrum of acoustic signal in a stationary and moving model liquid using nanosized objects as contrast agents while optoacoustic transformation. Optoacoustic medical methods are hybrid technique of diagnostics using ultrasonic and laser methods in the same time for study biological objects by draw conclusions about investigated objects the objects through the form of the temporal realization of the signal. Investigated objects in optoacoustic methods are tissues and substances that are capable of absorbing and reflecting light waves including biological fluids and tissues, for example, blood refers. In this paper gived a detailed description of the experimental set. As a result of the experiment the spectral characteristics of the acoustic signal for a stationary and moving liquid were obtained. The results were discussed and conclusions were made about the influence of the flow velocity on the total acoustic field resulting from the optoacoustic transformation. The experimental set and the results obtained can be useful to check theoretical calculations for development of optoacoustic flow cytometry technology.

Keywords: optoacoustic effect, flow cytometry, acoustic signal, carbon nanotubes, laser sound excitation, experimental studies.

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