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PMC full text:
Phys Rev Lett. Author manuscript; available in PMC 2012 Jan 19.
Published in final edited form as:
Phys Rev Lett. 2006 Mar 3; 96(8): 088306.
Published online 2006 Mar 3.

FIG. 1

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Schematic showing the tethered particle method. (a) The tether is attached to a specific point on the bead; z is the height of this point. r denotes the position of the center of the bead. (b) The vector R from the attachment point to the bead center can rotate and is described by two angles. These rotations are more constrained for small values of z. Note that in the figure the width of DNA is not to scale, it is much smaller in real experiments.

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