TY - JOUR
T1 - Mobility of extended bodies in viscous films and membranes
AU - Levine, Alex J.
AU - Liverpool, T. B.
AU - MacKintosh, F. C.
PY - 2004/2/1
Y1 - 2004/2/1
N2 - We develop general methods to calculate the mobilities of extended bodies in (or associated with) membranes and films. We demonstrate a striking difference between in-plane motion of rodlike inclusions and the corresponding case of bulk (three-dimensional) fluids: for rotations and motion perpendicular to the rod axis, we find purely local drag, in which the drag coefficient is purely algebraic in the rod dimensions. These results as well as the calculational methods are applicable to such problems as the diffusion of objects in or associated with Langmuir films and lipid membranes. These methods can also be simply extended to treat viscoelastic systems.
AB - We develop general methods to calculate the mobilities of extended bodies in (or associated with) membranes and films. We demonstrate a striking difference between in-plane motion of rodlike inclusions and the corresponding case of bulk (three-dimensional) fluids: for rotations and motion perpendicular to the rod axis, we find purely local drag, in which the drag coefficient is purely algebraic in the rod dimensions. These results as well as the calculational methods are applicable to such problems as the diffusion of objects in or associated with Langmuir films and lipid membranes. These methods can also be simply extended to treat viscoelastic systems.
UR - http://www.scopus.com/inward/record.url?scp=84923231027&partnerID=8YFLogxK
U2 - 10.1103/PhysRevE.69.021503
DO - 10.1103/PhysRevE.69.021503
M3 - Article (Academic Journal)
C2 - 14995445
AN - SCOPUS:37649028155
SN - 1539-3755
VL - 69
JO - Physical Review E: Statistical, Nonlinear, and Soft Matter Physics
JF - Physical Review E: Statistical, Nonlinear, and Soft Matter Physics
IS - 2
M1 - 021503
ER -