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cond-mat.soft2011
Dynamical instabilities of two-fluid interfaces in a porous medium: A three-dimensional video imaging study
Prerna Sharma, P. Aswathi, Anit Sane +2
Two-fluid interfaces in porous media, an example of driven disordered systems, were studied by a real time three-dimensional imaging technique with pore scale resolution for a less…
cond-mat.soft2009
Sticking dynamics of deformable colloids
Prerna Sharma, Shankar Ghosh, S. Bhattacharya
The sticking of a soft polystyrene colloidal particle to a planar glass plate was studied by a microrheological technique using an optical tweezer to trap the particle and a piezoe…
cond-mat.soft2006
Motion of a sphere in an oscillatory boundary layer: an optical tweezer based study
Prerna Sharma, Shankar Ghosh, S. Bhattacharya
The drag forces acting on a single polystyrene sphere in the vicinity of an oscillating glass plate have been measured using an optical tweezer. The phase of the sphere is found to…