Characterization of the adhesion force between avidin-functionalized AFM tips and biotinylated agarose beads Markus Ludwig, Vincent T. Moy, Matthias Rief, Ernst-Ludwig Florin and Hermann E. GaubMicrosc. Microanal. Microstruct., 5 4-6 (1994) 321-328DOI: https://doi.org/10.1051/mmm:0199400504-6032100