Abstract
By tracking the Brownian trajectory of a sphere of 1 \ensuremath{\mu}m radius in a suspension of 35 nm radius beads, we probe the depth of the entropic potential experienced by a large sphere close to the cell wall. This potential is caused by the pressure exerted by the fluid of small beads when they cannot fit in the gap between the large bead and the wall. We find that the potential depth is of order $\mathrm{kT}$. Its dependence on the volume fraction of small spheres is significantly overstimated by a theory which treats the small beads as an ideal gas.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
