Welcome To Ashis Research Group

Ashis Research Group

Our group works on the fundamentals and applications of microfluidics. The group is interested in conceiving and understanding unique and interesting micro/nanoscale fluidic phenomena. Such phenomena could involve the inherent hydrodynamics, and/or external fields such as acoustic and magnetic fields. The team is focused on studying the underlying mechanism and develop new techniques through experiments and modeling. The fundamental research activities fall in the areas of acoustofluidics, magnetofluidics, and capillarity and wetting. The topics cover handling and manipulation of particles, droplets, cells and fluid interfaces as well as the interaction of liquid drops with surfaces and deformable structures (click for our Research Focus).

Further, the group is committed to developing integrated microfluidic platforms - lab on chip (LOC) technologies. Currently, the team is developing a LOC platform for in-situ and real-time rapid monitoring of gasotransmitters in blood for early diagnosis of sepsis. The group is also developing a LOC platform for detection, isolation, and genomic profiling of CTCs in single-cell format for the prognosis of cancer, and LOC biosensor for detection of dengue NS1 antigen.

Media: Link1 Link2

RECENT NEWS

PhD scholar Ravindra Gaikwad (and Dr. Ashis Kumar Sen as mentor) received the SITARE-Gandhian Young Technological Innovations Awards 2020.

SELECTED RECENT PUBLICATIONS

  • Evaporation-induced transport of a pure aqueous droplet by an aqueous mixture droplet, B. Majhy and A. K. Sen, Physics of Fluids, 2020.

  • 87. Cassie-Wenzel wetting transition on nanostructured superhydrophobic surfaces induced by surface acoustic waves, A. Sudeepthi, L. Yeo and A. K. Sen, Applied Physics Letters, 2020. Editor's picks article.

  • 88. Understanding of the role of dilution on evaporative deposition patterns of blood droplets over hydrophilic and hydrophobic substrates, R. Iqbal, A. Q. Shen and A. K. Sen, J Colloid & Interface Science, 2020.

  • Trapping and coalescence of diamagnetic aqueous droplets using negative magnetophoresis, S. K. Jain, U. Banerjee, and A. K. Sen, Langmuir, 2020.

  • Interparticle acoustic radiation force between a pair of spherical particles in a liquid exposed to a standing bulk acoustic wave, S. Z. Hoque and A. K. Sen, Physics of Fluids, 2020.

  • Understanding of the role of dilution on evaporative deposition patterns of blood droplets over hydrophilic and hydrophobic substrates, R. Iqbal, A. Q. Shen and A. K. Sen, J Colloid & Interface Science, 2020

  • Shape evolution of drops on surfaces of different wettability gradients, I. Chowdhury, P. S. Mahapatra, and A. K. Sen, Chemical Engineering Science, 2020.

  • Optomicrofluidic device for detection and isolation of drop encapsulated target cells in single-cell format, R. Gaikwad and A. K. Sen, Analyst, 2020.

     

  • Cross-stream migration of droplets in a confined shear-thinning viscoelastic flow: role of shear-thinning induced lift, S. Hazra, S. K. Mitra and A. K. Sen, Physics of Fluids, 2020.

     

  • Continuous electrical lysis of cancer cells in a microfluidic device with passivated interdigitated electrodes, K. Pandian*, P. Ajanth*, S. Z. Hoque, A. Sudeepthi, and A. K. Sen, Biomicrofluidics, 2020.

     

  • Buckling and snapping of a thin polymeric membrane exposed to a solvent drop, R. A. Samy, N. S. Satpathi, and A. K. Sen, EPL (Europhysics Letters), 2020..

     

  •  Attraction and Repulsion between Liquid Droplets over a Liquid-impregnated Surface, B. Majhy, S. K. Jain and A. K. Sen, Journal of Physical Chemistry Letters, 2020.

     

ANNOUNCEMENTS

  • Rameez Iqbal and Mr. Utsab Banerjee, PhD scholars of our Lab, received the Institute Research Award (IRA) on recognition of their PhD research work, Congratulations!

  • Rameez Iqbal has successfully defended his doctoral thesis, congratulations Dr. Rameez Iqbal!

  • Sudeepthi A. and Utsab Banerjee won Best Student Presentation Awards at the 7th International and 45th National Fluid Mechanics and Fluid Power (FMFP) conference held at IIT Bombay during 10 - 12, December 2018.

  • Dr. Ashis Kumar Sen received The SwarnaJayanti Fellowship Award 2017 - 2018 (Engineering Sciences), Dept. of Science & Technology, India.

  • Dr. Karthick S, alumni (PhD scholar) of our lab is offered a regular faculty (Assistant Professor) position at IIITDM, Kancheepuram and BITS, Pilani.

  • PhD scholar Ravindra Gaikwad (and Dr. Ashis Kumar Sen as mentor) received the SITARE-Gandhian Young Technological Awards 2020.

  • Dr. Jayaprakash K S a PhD scholar from our lab joined ESPCI, Paris for a post-doc position.

     

  • Dr. Ashis Kumar Sen received the Young Faculty Recognition Award (YFRA) – 2017, IIT Madras.

     

  • Dr. Ashis Kumar Sen received the Institute Research & Development Awards (IRDA) – Early Career Level Award, IIT Madras - 2017.

     

  • Our work on capillary and acoustics based blood-plasma separation got selected for display in the Exhibition on Innovations in Medical Science and Bio Technology for Grassroots Applications on 09 March, 2017 at Rashtrapati Bhavan, New Delhi.
  • Our research work on “Capillary based blood-plasma separation” appeared in Hindu on 26 Sep 2016.
  • Dr. Ashis Kumar Sen received the Indian National Academy of Engineering (INAE) Young Engineer Award – 2013.
  • Dr. Ashis Kumar Sen received the Institute of Engineers India (IEI) Young Engineer Award – 2013.
  • Dr. Abhishek Raj, alumni (PhD scholar) of our lab is offered a regular faculty (Assistant Professor) position at IIT Patna.

FUNDING ACKNOWLEDGEMENT







Collaborators

  • Prof. Amy Shen, Okinawa Institute of Science and Technology, Japan.
  • Prof. Sushanta K Mitra, University of Waterloo, Canada.
  • Prof. Thomas Laurell, Lund University, Sweden.
  • Prof. Leslie Yeo, RMIT University, Australia.
  • Dr. Paul Ramesh, Cardiothoracic Surgeon, Apollo Hospitals, Chennai.
  • Dr. Anil Tarigopula, Pathologist, Apollo Hospitals, Chennai.
  • Prof. K M Muraleedharan, Department of Chemistry, IIT Madras.
  • Prof. Anil Prabhakar, Department of Electrical Engineering, IIT Madras.