Fig. 2
From: Rheological properties of cells measured by optical tweezers
Measurements of h u and θ. a Schematic representation of the experiment. The dashed lines represent the focused images in each case. The bead 1 is in contact with the cell and the bead 2 is attached to the coverslip. 2θ and h u are both represented. b Images of both beads in the situations described in (a). Scale bar is 5μm. c Results for the under bead cell thickness h u . d Representative image of a bead attached to a fibroblast cell, showing the angle 2θ. Scale bar is 1μm. e Results for the cell-bead contact angle 2θ. Error bars in (c) and (e) represent the standard errors of the means