A precise measurement of surface charge density is an inherently difficult task, but the new method - Surface Conductivity Microscopy - enables both precise measurement and high spatial resolution.

Based on a novel principle of analysing minuscule fluctuations in ionic flow through a nanopipette the method provides previously unobtainable information about the nanoscale structure and properties of surfaces at physiological conditions.

Figure shows schematic of the experiment.

Read the publication in Nature Communications: http://www.nature.com/ncomms/2016/160826/ncomms12447/full/ncomms12447.html

For more information please contact:
Associate Professor Mingdong Dong, Aarhus University
Phone: +45 8715 6729, Email: dong@inano.au.dk