Course11210600271 lectures
Microfluidics and Microsystems
Prof. Ashis Kumar Sen · IIT Madras
About
This course offers a comprehensive foundation in microfluidics, covering the physics of fluid transport at the microscale, microfabrication methods, and the design of essential microfluidic components. Students will learn how surface forces, interfacial phenomena, and scaling laws fundamentally alter fluid behavior in miniaturized systems. The course integrates classical topics with emerging fields such as electrofluidics, acoustofluidics, and magnetofluidics. By the end, learners will gain the conceptual and practical knowledge required to understand, analyze, and design modern lab-on-chip and microscale flow systems.
Intended audience: M-Tech, MS and PhD students
Prerequisites: Mathematics, UG Fluid Mechanics
Lectures
Week 1
- Introduction to Microfluidics - Part 1
- Introduction to Microfluidics - Part 2
- Introduction to Microfluidics - Part 3
- Flow features of Microfluidics
- Multi-physics phenomena in Microfluidics
- Scaling in Microfluidics: Introduction
Week 2
- Scaling in Microfluidics: Examples & Limitations
- Microfluidic device fabrication
- Different steps of Microfabrication
- Silicon crystallography & Miller indices
- Silicon wafer Processing: Cleaning, Oxidation , Photoresist coating, and Soft baking
- Silicon wafer Processing: UV exposure, Development, etching, and bonding
Week 3
- Overview of Doping and Oxidation
- Oxidation of Silicon wafer
- Thin film metallization
- Silicon micromachining
- Anisotropic Wet Etching
- Dry Etching and Bonding Techniques
Week 4
- Soft Lithography for Microfluidic devices
- Microfabrication & interconnections in Microfluidic devices
- Fundamentals of Microscale flows
- Continuum behaviour in microfluidics
- Gas flows & Microchannel flows in Microfluidics
- Pressure-Driven Microchannel Flows
Week 5
- Poiseuille flow in Microchannels
- Eigenfunction Solution of Rectangular Microchannel Poiseuille Flow
- Boundary conditions & slip phenomena in Microfluidic flows
- Low Reynolds number flows
- Time-dependent Couette flow:Part 1
- Time-dependent Couette flow:Part 2
Week 6
- Flow with two Length Scales
- Stokes Drag and Hydraulic Resistance in Microfluidic flow
- Channel Compliance and Hydraulic Capacitance
- Capillarity and Surface Tension
- Young - Laplace Pressure
- Consequence of Laplace Pressure
Week 7
- Contact Angle and Wetting Behavior: Wenzel Model
- Contact Angle and Wetting Behavior: Cassie-Baxter Model
- Fundamentals of Contact Angle Measurement
- Capillary Flows in Microfluidics
- Capillarity and Wetting in Microscale Flows
- Fundamentals of Surfactants and Wetting
Week 8
- Surfactants and Their Applications
- Measurement of Surface Tension:Part 1
- Measurement of Surface Tension:Part 2
- Instabilities in Fluids
- Rayleigh-Plateau Instability: Part 1
- Rayleigh-Plateau Instability: Part 2
Week 9
- Stability of Fluid Interfaces: Part 1
- Fundamentals of EDL: Part 2
- Introduction to Electrokinetics: Part 1
- Introduction to Electrokinetics: Part 2
- Fundamentals of EDL: Part 1
- Stability of Fluid Interfaces: Part 2
Week 10
- Electro-Osmosis in Parallel plate channels
- Electro-osmotic Pumping in Microchannels
- Fundamentals of Dielectrophoresis
- Dielectrophoresis of a Dielectric Sphere
- Dielectrophoretic Force and Particle Trapping in Microfluidic Channels
- AC Dielectrophoresis and Electrophoresis
Week 11
- Introduction to Magnetism
- Introduction to Magnetofluidics - Part 1
- Introduction to Magnetofluidics - Part 2
- Application of Magnetofluidics
- Introduction to Acoustofluidics
- First Order Perturbation Theory
Week 12
Syllabus and materials
At NPTEL, as the course publishes them.
Credits and licence
- Institution
- IIT Madras
- Department
- Mechanical Engineering
- Teacher
- Prof. Ashis Kumar Sen
- Level
- Graduate
- Language
- English
- Subjects
- Engineering
- Source
- NPTEL
- Licence
- CC BY-NC-SA, as NPTEL states it. Non-commercial use only. NPTEL's terms
- Attribution
- NPTEL states: "Distributed under Creative Commons Attribution-ShareAlike / CC BY - NC - SA", beside a BY-NC-SA badge.
- Who can watch
- NPTEL gives no rating. Invisible Network shows it to Tweens profiles and older, judged from what the source says about it. How courses are placed