Optoacoustic monitoring device for cell characterization

A monitoring device of biological cells comprising:

• a fluidic channel in which a fluid comprising biological cells is made to flow, the fluidic channel being formed by a first glass wall and a second glass walls placed in parallel and a reflective surface adjoined to the second wall, and
• a piezoelectric transducer, said piezoelectric transducer emitting acoustic waves is configured to create a force acting on the biological cells, making them flow along a single motion plane through the fluidic channel,
• wherein an external interface of the first glass wall in contact with an exterior of the fluidic channel, and the reflective surface are configured to function as a Fabry-Perot interferometer, the finesse of which is lower than 10, such that the Fabry-Perot interferometer has an optical axis perpendicular to the single motion plane, provides a single set of optics for focusing and retrieval of incident and reflected beams, and there is no need to provide additional mirrors,
• the monitoring device further comprising a detection unit detecting a fringe pattern stemming from the Fabry-Perot interferometer, and an analysing device, analysing said fringe pattern and configured to output data on physical properties of the cells based on said pattern.