Interfacial Engineering

By Prof. Manigandan | IIT Ropar

Learners enrolled: 76

ABOUT THE COURSE:

The course is aimed to provide UG/PG students with a sufficient background on the subject to enable them to advance in their research. This course is designed to give the importance of surfaces and interfaces, especially fluid-fluid and fluid-solid interfaces and a theory-based understanding of the colloidal sciences applicable to the discipline. A demonstration of several techniques related to interfacial engineering is an additional highlight of this course.

INTENDED AUDIENCE: PG and Final Year UG students

INDUSTRY SUPPORT: Paint industries (Asian paints), Medical (Helix Medical, LLC), Pharmaceutical (Biolin), Surface engineering (FLUPOL)

Summary

Course Status :	Upcoming
Course Type :	Elective
Language for course content :	English
Duration :	8 weeks
Category :	Chemical Engineering Minor 3 in Chemical
Credit Points :	2
Level :	Undergraduate/Postgraduate
Start Date :	17 Feb 2025
End Date :	11 Apr 2025
Enrollment Ends :	17 Feb 2025
Exam Registration Ends :	24 Feb 2025
Exam Date :	27 Apr 2025 IST

Note: This exam date is subject to change based on seat availability. You can check final exam date on your hall ticket.

Page Visits

Course layout

Week 1: Importance of surfaces and interfaces; Capillarity and surface tension

Week 2: Young-Dupre equation; Young-Laplace equation; Kelvin equation; Application of Young-Dupre

Week 3: Concepts of Washburn approach; Concepts of adhesion, cohesion, and spreading coefficient

Week 4: Critical micelle concentration (CMC); critical packing parameter (CPP); Surface excess

Week 5: Gibbs adsorption isotherm equation; Deposition of LB films; Emulsion and microemulsion

Week 6: Particles/droplets tracking; Colloids; Intermolecular force; van der Waals force

Week 7: Electrical double layer (EDL) interaction; Gouy-Chapman EDL Model; Stern EDL model

Week 8: DLVO forces of interactions; Steric forces; Electrokinetic phenomena

Books and references

1) Geoffrey Barnes and Ian Gentle, Interfacial Science: An Introduction. 2nd Edition, Oxford University Press: 2011.

2) Paul C. Hiemenz, Raj Rajagopalan, Principles of Colloid andSurface Chemistry. Marcel Dekker, Inc.: 1997.

3) Jacob N. Israelachvili, Intermolecular and Surface Forces.3rd Edition, Academic Press, London: 2011.

Instructor bio

Prof. Manigandan

IIT Ropar

Prof. Manigandan is a Chemical Engineer with five years of experience in industrial R&D and 6+ years of experience teaching in various reputed academic institutes. He did his PhD from the Department of chemical engineering, IIT Madras, in 2017. Recipient of the Shah-Schulman Award for the best PhD thesis in Colloid & Interface Science in India for the Year 2017, given by the Indian Institute of Chemical Engineers (IIChE) at the Indian Chemical Engineering Congress, 2018 (CHEMCON-2018). Recipient of "Institute Research Award-2017" for the quality and quantity of the research work done at IIT Madras. Recipient of "pre-doctoral fellowship award-2017" equivalent to post-doc, issued by the competent authority of IIT Madras. Current Research Interests: Colloid & Interfacial Science and soft matter; Topics of research: Synthesis of active/anisotropic particles and their self-assembly, Pickering emulsions, rheology of dispersions, and advanced functional nanomaterials for the application in wastewater treatment.

Course certificate

The course is free to enroll and learn from. But if you want a certificate, you have to register and write the proctored exam conducted by us in person at any of the designated exam centres.

The exam is optional for a fee of Rs 1000/- (Rupees one thousand only).

Date and Time of Exams: EXAM DATE : April 27, 2025 Morning session 9am to 12 noon; Afternoon Session 2pm to 5pm.

Registration url: Announcements will be made when the registration form is open for registrations.

The online registration form has to be filled and the certification exam fee needs to be paid. More details will be made available when the exam registration form is published. If there are any changes, it will be mentioned then.

Please check the form for more details on the cities where the exams will be held, the conditions you agree to when you fill the form etc.

CRITERIA TO GET A CERTIFICATE

Average assignment score = 25% of average of best 6 assignments out of the total 8 assignments given in the course.
Exam score = 75% of the proctored certification exam score out of 100

Final score = Average assignment score + Exam score

Please note that assignments encompass all types (including quizzes, programming tasks, and essay submissions) available in the specific week.

YOU WILL BE ELIGIBLE FOR A CERTIFICATE ONLY IF AVERAGE ASSIGNMENT SCORE >=10/25 AND EXAM SCORE >= 30/75. If one of the 2 criteria is not met, you will not get the certificate even if the Final score >= 40/100.

Certificate will have your name, photograph and the score in the final exam with the breakup.It will have the logos of NPTEL and IIT Madras .It will be e-verifiable at nptel.ac.in/noc.

Only the e-certificate will be made available. Hard copies will not be dispatched.

Once again, thanks for your interest in our online courses and certification. Happy learning.

- NPTEL team

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