112 citations · 994 across the 84 of their papers we have counts for
15 papers · 1 filter
Temperature-gradient induced massive augmentation of solute dispersion in viscoelastic micro-flows
Siddhartha Mukherjee, Sunando DasGupta, Suman Chakraborty
Enhancing solute dispersion in electrically actuated flows has always been a challenging proposition, as attributed to the inherent uniformity of the flow field in absence of surfa…
Near-wall hydrodynamic slip triggers swimming state transition of microorganisms
Antarip Poddar, Aditya Bandopadhyay, Suman Chakraborty
Interaction of motile microrganisms with a nearby solid substrate is a well studied phenomenon. However, the effects of hydrodynamic slippage on the substrate have received a littl…
Influence of non-hydrodynamic forces on the elastic response of an ultra-thin soft coating under fluid-mediated dynamic loading
Pratyaksh Karan, Jeevanjyoti Chakraborty, Suman Chakraborty
The force between two approaching solids in a liquid medium becomes increasingly large with decreasing separation, a phenomenon that prevents contact between the two solids. This g…
Generalizing Co-operative Evaporation in Two-Dimensional Droplet Arrays
Khushboo Pandey, Sandeep Hatte, Keshav Pandey +2
Sessile droplets exposed to an incipient condition lead to an inevitable loss of mass, which is critical in many practical applications. By considering an arbitrarily configured tw…
Streaming Potential in Bio-mimetic Microvessels Mediated by Capillary Glycocalyx
Rahul Roy, Siddhartha Mukherjee, Rajaram Lakkaraju +1
Implantable medical devices and biosensors are pivotal in revolutionizing the field of medical technology by opening new dimensions in the field of disease detection and cure. Thes…
Electrokinetic Power Harvesting from Wet Textile
Sankha Shuvra Das, Vinay Manaswi Pedireddi, Aditya Bandopadhyay +2
Developing low-weight, frugal and sustainable power sources for resource-limited settings appears to be a challenging proposition for the advancement of next-generation sensing dev…
On-Chip Concentration and Patterning of Biological Cells Using Interplay of Electrical and Thermal Fields
Golak Kunti, Tarun Agarwal, Anandaroop Bhattacharya +2
We demonstrate a method of concentrating and patterning of biological cells on a chip, exploiting the confluence of electric and thermal fields, without necessitating the use of an…
Energy-Efficient Micromixing in Paper Based Devices Mediated by the Interplay of Electrical and Thermal Fields
Golak Kunti, Sankha Shuvra Das, Vinay Manaswi Pedireddi +2
Biomedical and biochemical processes in paper-based microfluidic devices often deal with mixing of two analytes to perform important functions. Uniform mixing of analytes in paper…
Anomalous diffusion in an electrolyte saturated paper matrix
Sankha Shuvra Das, Sumeet Kumar, Sambuddha Ghosal +2
Diffusion of colored dye on water saturated paper substrates has been traditionally exploited with great skill by renowned water color artists. The same physics finds more recent p…
Joule Heating-Induced Particle Manipulation on a Microfluidic Chip
Golak Kunti, Jayabrata Dhar, Anandaroop Bhattacharya +1
We develop an electrokinetic technique that continuously manipulates colloidal particles to concentrate into patterned particulate groups in an energy efficient way, by exclusive h…
Electrorheology of a dilute emulsion of surfactant-covered drops
Antarip Poddar, Shubhadeep Mandal, Aditya Bandopadhyay +1
The effects of surfactant coating on a deformable viscous drop under the combined action of a shear flow and a uniform electric field, are investigated by solving the coupled equat…
Nanoparticles modulate contact angle hysteresis in electrowetting
Sumit Kumar, Pawan Kumar, Sunando DasGupta +1
The pinning of the contact line adversely influences the electrowetting performance of sessile liquid droplets. In this paper, we report the electrowetting hysteresis characteristi…
Electroosmotic flow of viscoelastic fluids in deformable microchannels
Siddhartha Mukherjee, Sunando DasGupta, Suman Chakraborty
The electroosmotic flow of non-Newtonian fluids in deformable microchannels is fundamentally important in the understanding of the hydrodynamics in physiological flows. The perform…
Controlled Electrokinetic Particle Manipulation using Paper-and-Pencil Microfluidics
Sankha Shuvra Das, Shantimoy Kar, Sayantan Dawn +2
Dielectrophoresis is a very promising technique for particle manipulation on a chip. In this study, we demonstrate a controlled mannuvering of polystryrene particles on a simple pa…
Simulations of a weakly conducting droplet under the influence of an alternating electric field
Kirti Chandra Sahu, Manoj Kumar Tripathi, Jay Chaudhari +1
We investigate the electrohydrodynamics of an initially spherical droplet under the influence of an external alternating electric field by conducting axisymmetric numerical simulat…