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. Author manuscript; available in PMC: 2008 Sep 7.
Published in final edited form as: Biochem Biophys Res Commun. 2007 Jul 5;360(4):797–801. doi: 10.1016/j.bbrc.2007.05.228

FIG. 1.

FIG. 1

Mean square displacements, <r2(Δt)>, computed from spontaneous motion of RGD-coated beads (400 to 720 beads per group). (a) <r2(Δt)> at different thermodynamic temperatures, from 12°C to 41°C. (b) <r2(Δt)> under baseline condition (23°C), and after challenge with DBcAMP (decreases cell contractility, 1 mM), jasplakinolide (stabilizes actin, 1 μM), cytochalasin-D (disrupts actin filaments, 2 μM), and after depleting ATP. ATP concentration after depletion was from 2 to 7% of that in control samples. Noise level on bead position is discussed in Bursac et al.[1] and in Online Supplement 2.