For additional information on bacterial adhesion and transport, try these Penn State and other links: AFM is one technique to study bacterial adhesion forces, but other studies on bacterial transport (for soil bioaugmentation and remediation) are being conducted at Penn State in the laboratory of Professor Bruce Logan, in the Department of Civil and Environmental Engineering. Hompage of Professor Logan Bacterial transport web page Several AFM and other images are available through the homepage of Terri Camesano, a PhD candidate in the Department of Civil and Environmental Engineering. Homepage of Terri Camesano The Institute for Food Research maintains a web site investigating the SPM imaging of bacteria, polysaccharides, and other interesting biomaterials..  IFR website