MARS SIGNED

Project "MARS" data sheet

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 Partnership

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 Project objective

The MARS project will develop a platform for measuring mass at microscale and rheological properties of Newtonian/ non-Newtonian fluids in real-time, with unprecedented resolution, accuracy and reliability. This will be achieved by exploiting some unique degrees of flexibility in the dynamical response of a self-excited micromechanical probe. Depending on the desired application, this platform can be either used as a continuous sensor, a threshold sensor or a stable reference. Measuring the mass of analytes with high accuracy and understanding the rheology of simple and complex fluids play a critical role in a wide variety of applications in the ever-growing smart sensor global market. The success of the MARS project requires: - Advanced modelling of the dynamical response of self-excited microresonators oscillating in Newtonian or non-Newtonian fluids while subject to mass changes; - Design, development and optimisation of the new sensing platform; - Real case experiments for mass sensing, to assess and showcase the capabilities of each sensing modality; - Characterisation of the properties of weakly non-Newtonian viscoelastic fluids. This platform addresses several of the main drawbacks of current techniques to measure mass or to characterise viscoelastic fluids and presents some unique features: i) Self-sustained oscillations that keep track of any environmental changes affecting the mechanical probe, without requiring any external equipment; ii) Possibility of controlling a variety of sensing modalities by introducing delay in the feedback loop with a phase-shifter circuit; iii) Capability of sensing extremely small mass (potentially single molecules) and weakly non-Newtonian fluids. The end technical result will be a proof-of-concept prototype to demonstrate the effectiveness of the technology, and its potential to engage with external partners for further development in the direction of a viable and revolutionary commercial product.