The invention provides a liquid cell for an atomic force microscope. The
liquid cell includes a liquid cell housing with an internal cavity to
contain a fluid, a plurality of conductive feedthroughs traversing the
liquid cell housing between the internal cavity and a dry side of the
liquid cell, a cantilevered probe coupled to the liquid cell housing, and
a piezoelectric drive element disposed on the cantilevered probe. The
cantilevered probe is actuated when a drive voltage is applied to the
piezoelectric drive element through at least one of the conductive
feedthroughs. A method of imaging an object in a liquid medium and a
method of sensing a target species with the liquid cell are also
disclosed.