Electromechanical imaging in liquid environments a pathway toward molecularlevel resolution of biological systems: "Scientists from Oak Ridge National Laboratory in Tennessee have overcome several hurdles faced by electromechanical imaging techniques with a simple solution of operating piezoresponse force microscopy (PFM) in a liquid environment. The team found that imaging in an aqueous environment enabled the microscope to minimize negative effects, namely electrostatic tip-surface interactions and capillary forces, and overcome these barriers to achieve higher resolution imaging. "