11 citations · 11 across the 4 of their papers we have counts for
5 papers
Stiffness-dependent Dielectric Relaxation in Thermoreversible Microgels: Effects of Temperature and Strain
Sayantan Chanda, Sonali Vasant Kawale, Ranjini Bandyopadhyay
We investigate how particle stiffness governs length-scale-dependent relaxation dynamics in dense suspensions of thermoresponsive PNIPAM microgels subjected to temperature variatio…
Elasticity-mediated Morphogenesis in Interfacial Colloidal Assemblies
Vaibhav Raj Singh Parmar, Sayantan Chanda, Rituparno Mandal +1
We study the self-assembly of colloidal microgel particles at a quasi-two-dimensional air-water interface of a drying droplet. Using bright-field microscopy, we demonstrate that in…
Investigating the roles of hydrophobicity and electrostatics in the particle-scale dynamics and rheology of dense microgel suspensions
Sayantan Chanda, Chandeshwar Misra, Ranjini Bandyopadhyay
Colloidal microgel particles such as poly(N-isopropylacrylamide) (PNIPAM) shrink reversibly in an aqueous medium due to the expulsion of water at a volume phase transition temperat…
Using optical tweezer electrophoresis to investigate clay nanoplatelet adsorption on Latex microspheres in aqueous media
Vaibhav Raj Singh Parmar, Sayantan Chanda, Sri Vishnu Bharat Sivasubramaniam +1
The adsorption of charged clay nanoplatelets plays an important role in stabilizing emulsions by forming a barrier around the emulsion droplets and preventing coalescence. In this…
Emergence of transient reverse fingers during radial displacement of a shear-thickening fluid
Palak Palak, Vaibhav Raj Singh Parmar, Sayantan Chanda +1
A highly sheared dense aqueous suspension of granular cornstarch particles displays rich nonlinear rheology. We had previously demonstrated the growth and onset of interfacial inst…