i) Digital microfluidics (DMF).
ii) Characterization and quantification of transport in micro-scale systems,
iii) Design and development of micro-scale heat spreaders for cooling of electronic
iv) Electrowetting on dielectric (EWOD) and chemical gradient induced movement of
v) Development of low-cost diagnostic devices (Paper-based microfluidics and
Centrifugal microfluidics (i.e. Lab-on-a-compact-disk)).
vi) Flow hydrodynamics through bio-mimetic channels.
vii) Biological processes in small confinements, e.g. in microchannels and droplets.
viii) Effect of electric field on protein aggregation.
ix) Formation and propagation of cracks during drying of microdroplets.
x) Study of protein nanoparticle interaction.
Prof. Suman Chakraborty
Prof. Sunando DasGupta
Our research group is solely dedicated towards investigating the underlying physics of micro/nano-scale transport processes. Microfluidics has been the gateway to exploring new and fascinating interfacial phenomena, stemming from the high surface-to-volume ratio of the involved systems. These new insights, in turn, have contributed to the development of even more sophisticated application based technologies. These encompass the varied fields of biotechnology, biomedical engineering, chemical engineering, material handling and thermal management of electronic devices/systems. The microfluidics research group has already succeeded in developing new theories on hydrophobic interactions and interfacial slip phenomena in micro/nano channels, in devising new strategies for rapid DNA hybridization, in delineating the physiological characteristics of cells surviving in micro-confinements. It has conducted various novel studies aimed towards understanding some fundamental issues related to the electrokinetic phenomenon. Furthermore, significant contributions have also been made to cooling technology of electronic devices/chips. Presently, the principal research domains being explored by this group include low-cost, high-throughput lab-on-a-CD and paper-based microfluidic platforms for rapid clinical diagnostics, electrically-mediated microdroplet motion and thin film spreading for optimized electronic cooling, droplet motion over functional surfaces, droplet-based microfluidic systems for bio-chemical analysis, material handling, targeted drug delivery, and cell-bubble interactions. The microfluidics research group also addresses challenging problems by implementing state-of-the-art computational fluid dynamics (CFD) and molecular dynamics simulation (MDS) tools. Very recently, the group has ventured into the novel, but very nascent domain of optically induced alteration of microscale interfacial phenomena..
The facilities available in this laboratory include:
Micro-PIV (particle image velocimetry)
Table-top Mask Aligner
High resolution Reflection-Transmission Microscope
Stereo Zoom microscope
Contact Angle Goniometer with automatic Tilting Facility
High Speed Camera
Automated Spin Coater
Plasma Surface Modification Chamber
Class 100 Clean Hood Oven
High Voltage DC Power Source and AC Function Generator
Horizontal Laminar Air-Flow
Hot Air OvenC
Workstation and Advanced Computing Facilities