Welcome to Ashis Microfluidics Research Group!

Our group is involved in both fundamental and applied microfluidics research. Our research focus is in the following broad areas:

  • Microfluidics and Microsystems
  • Interfacial Phenomena (fluid-fluid and fluid-solid)
  • Lab on Chip (LOC) diagnostics
 More about our group research activities can be found here...


Our work related to capillary and acoustics based blood-plasma separation got selected for display at an Exhibition on Innovations in Medical Science and Bio Technology for Grassroots Applications on 09 March, 2017 at Rashtrapati Bhavan, New Delhi.

We have few project positions open in the area of microfluidics, if interested please send your CV and arrange to send two reference letters to the email below.


Phone: +91 44 2257 4716
Fax: +91 44 2257 4652


Dr. Ashis Kumar Sen
Associate Professor
Department of Mechanical Engineering,
Indian Institute of Technology Madras
Chennai-600036, India

Selected Recent Publications:

Continuous splitting of aqueous droplets at the interface of co-flowing immiscible oil streams in a microchannel, K S Jayaprakash, A. K. Sen, Soft Matter (2018).

Droplet demulsification using ultra-low voltage based electrocoalescence, A. Srivastava, S. Karthick, K S Jayaprakash, A. K. Sen, Langmuir (2017).

Improved understanding of the acoustophoretic focusing of dense  suspension in a microchannel, S. Karthick and A. K. Sen, Physical Review E, 2017.

A combined experimental and theoretical approach towards mechano-phenotyping of biological cells using a constricted microchannel, A. Raj and A. K. Sen, Lab on Chip, 2017.

Facile fabrication and characterization of a PDMS-derived candle soot coated stable biocompatible superhydrophobic and superhemophobic surface, R. Iqbal, B. Majhy, A. K. Sen, ACS Appl. Mater. & Interfaces, 2017.

Bio-inspired liquid transport via elastocapillary interaction of a thin membrane with liquid meniscus, A. Samy, D. George, A. K. Sen, Soft Matter, 2017.

Dynamics of a water droplet over a sessile oil droplet: compound droplets satisfying a Neumann condition, R. Iqbal, S. Dhiman, A. K. Sen, A. Shen, Langmuir, DOI: 10.1021/acs.langmuir.6b04621, 2017.

Manipulation of magnetocapillary flow of ferrofluid in a microchannel, U. Banerjee, M. Sabareesh, A. K. Sen, Sensors and Actuators B: Chemical, 2017.

Capillary flow-driven microfluidic device with wettability gradient and sedimentation effects for blood plasma separation, M. S. Maria, P. E. Rakesh, T. S. Chandra and A. K. Sen, Scientific Reports, 2017.

Dynamics of rigid microparticles at the interface of co-flowing immiscible liquids in a microchannel, K. S. Jayaprakash, U. Banerjee, A. K. Sen, J Colloid and Interface Science, 2017.

Flotation of denser liquid drops on lighter liquids in non-Neumann condition: role of line tension, D. George, S. Damodara, R. Iqbal and A. K. Sen, Langmuir, 2016.

Google Scholar Profile

Design or Fabrication of Microfluidic chips:

We provide services for design and fabrication of microfluidic chips. If you are interested in our services, please send your inquiry to

We use multi-physics simulations and CAD tools for designing microfluidic devices.

We have capability to fabricate single or multi-layer microchannel devices of the following specifications:

  •  Material: PMMA, PDMS, Glass, Silicon
  • Channel dimensions: >5 µm in PMMA and PDMS, >1 µm in Glass and Silicon
  • Fabrication process:
    • PMMA: micro-milling and chemical bonding
    • PDMS: moulding, O2-plasma bonding
    • Glass and Silicon: etching and anodic bonding
  • Fabrication of single and multi-layer devices are possible
  • Integration of electrodes with fluidic channels is possible

Some examples of the different types of microfluidic devices we have fabricated for external customers and our own research activities are here..


Our research is funded by