18 citations · 49 across the 5 of their papers we have counts for
5 papers
Quantifying the destructuring of a thixotropic colloidal suspension using falling ball viscometry
Rajkumar Biswas, Debasish Saha, Ranjini Bandyopadhyay
The settling dynamics of falling spheres inside a Laponite suspension is studied. Laponite is a colloidal synthetic clay that shows physical aging in aqueous suspension due to the…
Effects of polydispersity on the glass transition dynamics of aqueous suspensions of soft spherical colloidal particles
Sanjay Kumar Behera, Debasish Saha, Paramesh Gadige +1
Thermoresponsive poly(N-isopropylacrylamide) (PNIPAM) particles of a nearly constant swelling ratio and with polydispersity indices (PDIs) varying over a wide range (7.4% - 48.9%)…
Study of dynamical heterogeneities in aging colloidal nanoclay suspensions
Paramesh Gadige, Debasish Saha, Sanjay Kumar Behera +1
An aqueous suspension of the synthetic clay Laponite undergoes a transition from a liquid-like ergodic state to a glass-like nonergodic arrested state. In an observation that close…
Characteristics of the secondary relaxation process in soft colloidal suspensions
Debasish Saha, Yogesh M Joshi, Ranjini Bandyopadhyay
A universal secondary relaxation process, known as the Johari-Goldstein (JG) -relaxation process, appears in glass formers. It involves all parts of the molecule and is particul…
Kinetics of the glass transition of fragile soft colloidal suspensions
Debasish Saha, Yogesh M. Joshi, Ranjini Bandyopadhyay
Microscopic relaxation timescales are estimated from the autocorrelation functions obtained by dynamic light scattering experiments for Laponite suspensions with different concentr…