  We present a new method to measure rheological response of liquids confined
to nano-scale which exhibit a considerable slow-down in dynamics compared to
bulk liquids. The method relies on using a robust force sensor that has a
sensitivity to measure shear forces in the range of 1 to 10 nN and a stiffness
of 55000 N/m to avoid thermal noise. Off-resonance operation ensures
application of a range of shear frequencies . This range is higher than the
inverse of the system's mechanical relaxation time and allows the measurement
of non-linear effects emerging due to significant "slow down" in dynamics upon
confinement. The instrument is a step forward towards resolving the
controversies about the nature of nano-confined liquids.
