Suspended Microchannel Resonators (SMRs) are hollow resonant structures containing an embedded u-shaped micro fluidic channel. Having the sample fluid confined inside the resonator allows for real time detection of liquid compounds while the device quality factor remains almost unaffected. Theoretical studies and experimental results have shown that these devices present a nonmonotonic energy dissipation as the fluid viscosity is increased or decreased. This is in contrast with conventional cantilevers immersed in fluid, where the quality factor monotonically decreases as the fluid viscosity increases. In the simplest configuration, the channel contained inside the cantilever is perfectly centered about the neutral axis of the resonant structure. Analytical models have shown variation of the device quality factor by several orders of magnitude when the microfluidic channel is placed out of the beam neutral axis. This project aims to experimentally demonstrate the relation between SMRs’ energy dissipation and off-axis placement of the microfluidic channel, in function of fluidic properties as compressibility and dynamic viscosity. The student’s tasks are the following: • Review and understand the state of the art about theoretical studies concerning energy dissipation of hollow beam resonators; - Propose an experimental plan presenting interesting geometries and fluidic properties to be tested; - Design and fabricate samples to be tested; - Optimize an experimental setup; - Collect experimental results and compare with theoretical studies found in literature.