Prof. Dillip Kumar Satapathy
Department of Physics
Prof. Dillip Kumar Satapathy
Research Areas
At Soft Materials Lab, we work with polymers and colloids. We study the actuation behavior of soft polymeric actuators in response to various stimuli, particularly water vapor, for potential applications in the field of soft robotics
People
Post Doc
Dr. Nidhi Joshi
Phd Students
Research
- Polymer physics
- Self assembly of soft colloids
- Responsive soft matter
- Flexible thermoelectrics
Projects
- Reprogrammable Polymer Based Soft Actuators, Scheme for Transformational and Advanced Research in Sciences (STARS), Ministry of Human Resource and Development (2020- 2023)
- Sessile Drop Evaporation Induced Wrinkle Morphology of Freestanding Elastomer Films, Exploratory Research Proposal Scheme, IIT Madras
- Beamtimes and support for carrying out small angle neutron scattering (SANS) experiment at Neutron reactor facility located at BARC Mumbai
- Effect of alcohols and polymers on the bending modulus of reverse microemulsion , UGC-DAE Consortium for scientific Research, Mumbai
- In-situ Investigations of Swelling Dynamics of Confined Glassy Ionic Polymers, Science and Engineering Research Board, SERB-DST
- Fabrication of polymer based materials for thermoelectric applications, (IMPacting Research INnovation and Technology (IMPRINT) initiative MHRD
- .Glass Transition in Confined Polymers, Advanced Technology Committee, Board of Research in Nuclear Sciences (BRNS).
- Glass Transition Dynamics in Ultra-thin Polymer Films by Hot Stage Ellipsometry, Nissan Research Program
- Glass Transition in Polymers Under Confinement, New Faculty Seed Grant Scheme, IIT Madras (2012- 2016)
Facilities
- Ellipsometry
- ZEM3
- Atomic Force Microscopy (AFM)
- Optical Microscopes (Stereo, Polarizing, Inverted)
- UV curing units
- Contact angle measurement instrument
- Cryomiller
- Spin coater
- Hot air ovens
- Vacuum Oven
- Dip Coater
- Probe Sonicator
- Ultra Spinner
Collaboration
- Prof. Sathish K. Sukumaran, Yamagata University Japan https://yudb.kj.yamagata-u.ac.jp/html/100000390_en.html
- Dr. Daniele Cangialosi, Materials Physics Center, San Sebastian, Spain https://cfm.ehu.es/team/daniele-cangialosi/ External international site links for project
- Prof. Ludovic Pauchard, University of Paris Sud, Paris, France http://www.fast.u-psud.fr/~pauchard/
Publications
- Vapor and Light Responsive Biocompatible Soft Actuator V Kumar, DK Satapathy Langmuir 2024
- Realizing high phonon anharmonicity in layered : A temperature-dependent optical phonon study M Tiadi, DK Satapathy, M Battabyal Physical Review B 109 (19), 195201 2024
- Probing Thermoelectric Properties of Aluminium-Doped Copper Iodide TVV Ramana, M Battabyal, S Kumar, DK Satapathy, R Kumar Physical Chemistry Chemical Physics 2024
- Polymer-Infused Textile Thermoelectrics for Power Generation A Chauhan, S Kumar, DK Satapathy, M Battabyal ACS Applied Electronic Materials 6 (4), 2774-2781 2024
- Investigation of the Bound Layer in Thin Films of Hydrophilic Polymer and their Nanocomposites SZ Bhutia, S Sukumaran, D Satapathy Bulletin of the American Physical Society 2024
- Morphologies of electric-field-driven cracks in dried dispersions of ellipsoids M Emerse, H Lama, MG Basavaraj, R Singh, DK Satapathy Physical Review E 109 (2), 024604 2024
- Multivapor-Responsive Controlled Actuation of Starch-Based Soft Actuators V Kumar, SA Siraj, DK Satapathy ACS Applied Materials & Interfaces 16 (3), 3966–3977 2024
Social Impact
Content to be Added
Gallery
Water vapor-induced bending of silk fibroin film
Temperature difference is created when thermoelectric prototype was wrapped around the beaker and hot water was filled upto the lower end of the prototype. The maximum output voltage was 11.1 mV when the temperature difference was 6 °C.
Evaporation induced crystallization
The video shows a section of the droplet periphery. The particles consolidate at the periphery of the droplet as the fluid evaporates and further cracks nucleates and propagate in the dried deposit to release the drying induced stresses
PNIPAM microgel is a model candidate for soft colloids. When these particles come in contact with the air/water interface, they get irreversibly absorbed into the interface, which makes their self-assembly patterns intriguing. Here we have let the aqua droplet containing PNIPAM particles evaporate in a liquid-bridge condition which leads to patterns that consist of hexatically ordered and disordered phases with varying particle concentrations
