5 papers
Confinement-induced evolution and breakup of viscoelastic filaments in microfluidic coflows
U. K. Kar, T. Sujith, D. Ghosh +1
Viscoelastic filament thinning is classically described by elastocapillary dynamics in extensional flows, yet in confined microchannels the combined effects of wall-induced shear,…
Viscoelastic control of acoustic particle migration and trapping in microchannels
T. Sujith, A. K. Sen
Particle migration and trapping in ultrasonically actuated microscale flows arise from the competition between acoustic radiation forces and streaming-induced drag. While these mec…
Ultrasound-controlled stream splitting in a microfluidic coflow
D. Ghosh, S. Z. Hoque, T. Sujith +3
Precise control of multiphase microfluidic flows underpins applications ranging from chemical processing to biomedical diagnostics. We investigate the response of a liquid--liquid…
Optomicrofluidic measurement of particle-encapsulated droplet system
Kanimozhi Kumaresan, Thaipally Sujith, Anil Prabhakar +1
Droplet microfluidics combined with optical detection has become a powerful approach for high-throughput single-cell assays, but these systems often face limited sensitivity and si…
Fluid viscoelasticity controls acoustic streaming via shear waves
T. Sujith, A. K. Sen
Control of acoustic streaming can significantly impact fluid and particle transport in microfluidics. We report enhancement, suppression, and reversal of acoustic streaming inside…