BSA molecules on mica. The samples were prepared from 1 mkg/ml and 5 mkg/ml solutions.
It is clear that the number of molecules on the surface increases with the concentration.
The images were obtained in semi-contact mode in air, NSG01S cantilever, microscope Solver PRO-M (scanner 3x3 um).
Image courtesy of Y.Efremov and D.Bagrov (Department of biology, Moscow State University).
