34 citations · 64 across the 6 of their papers we have counts for
6 papers
Defect Localization by Vanishing Deviatoric Stress in Active Nematics
Sameer Kumar, Manas Khan
Collective stress generation in cellular monolayers is a key phenomenological process governing coordinated migration and emergent multicellular dynamics. We employ a generic activ…
Optical tweezers microrheology maps the dynamics of strain-induced local inhomogeneities in entangled polymers
Manas Khan, Kathryn Regan, Rae M. Robertson-Anderson
Optical tweezers microrheology (OTM) offers a powerful approach to probe the nonlinear response of complex soft matter systems, such as networks of entangled polymers, over wide-ra…
Irreversibility to Reversibility Crossover in Transient Response of an Optically Trapped Particle
Manas Khan, A. K. Sood
We study the transient response of a colloidal bead which is released from different heights and allowed to relax in the potential well of an optical trap. Depending on the initial…
Tunable Brownian Vortex at the Interface
Manas Khan, A. K. Sood
A general kind of Brownian vortexes are demonstrated by applying an external nonconservative force field to a colloidal particle bound by a conservative optical trapping force at a…
Optical tweezer for probing erythrocyte membrane deformability
Manas Khan, Harsh Soni, A. K. Sood
We report that the average rotation speed of optically trapped crenated erythrocytes is direct signature of their membrane deformability. When placed in hypertonic buffer, discocyt…
Out-of-equilibrium microrheology using optical tweezers to probe directional viscoelastic properties under shear
Manas Khan, A. K. Sood
Many wormlike micellar systems exhibit appreciable shear thinning due to shear induced alignment. As the micelles get aligned introducing directionality in the system, the viscoela…