• Assistant Professor (January 2017- till date), Department of Chemistry, IIT Patna
• Head, Sophisticated Analytical Instrument Facility (SAIF), IIT Patna (March, 2019 - November, 2021)
• Postdoctoral Researcher (November 2014- December 2016), Ghent University, Belgium Advisor- Prof. Dr. Filip Du Prez
• Research Assistant (November 2013- October 2014), DWI - Leibniz Institute for Interactive Materials, RWTH Aachen University, Germany, Advisor- Prof. Dr. Martin Moeller and Dr. Helmut Keul

• "Young Talents – Then and Now" for the journal "Macromolecular Chemistry and Physics" (2022, Wiley Publications)
• Emerging Investigator for the Journal " Journal of Materials Chemistry A" (2022, The Royal Society of Chemistry)
• Postdoctoral fellowship at Ghent University, Belgium.
• Publication in Green Chemistry was highlighted as one of the three hot paper of September, 2013 in Green Chemistry blog - recommended by reviewers (http://blogs.rsc.org/gc/2013/09/20/hot-papers-in-green-chemistry-6/)
• PhD Research fellowship at RWTH Aachen University.
• Qualified JRF (CSIR-UGC-NET)- Dec, 2008, GATE 2009, JAM 2007.
• State level Merit Scholarship for Madhyamik Examination- 2001 (10th standard level)

Recognition through PhD students:

• PhD student under my supervision Mohd. Avais won the best paper award at International Conference on Advances in Chemical and Material Sciences - ACMS - 2022, Platinum Jubilee Celebration of Indian Institute of Chemical Engineers
• PhD student under my supervision Sulbha Kumari won the best poster prize at International Conference on Materials Science and Technology - ICMT-2021
• PhD student under my supervision Mohd. Avais won the second prize in short invited lecture at International Conference on Materials Science and Technology - ICMT-2021.

1. Mohd. Avais, Subrata Chattopadhyay*, Porous Polyaminoamides via Exotemplate Synthesis Approach for Ultrahigh Multimedia Iodine Adsorption, Journal of Materials Chemistry A 2022, DOI: 10.1039/D2TA02708A (IF = 14.51)
2. Sulbha Kumari, Mohd. Avais, Subrata Chattopadhyay*, High Molecular Weight Multifunctional Fluorescent Polyurea: Isocyanate-free Fast Synthesis, Coating Applications and Photoluminescence Studies, Polymer 2022, https://doi.org/10.1016/j.polymer.2022.125219 (IF = 4.43)
3. Jyoti Devi Katiyar, Subrata Chattopadhyay*, Quantitative functionalization of chitosan using green and efficient azetidinium-amine reactions, Carbohydrate Polymers, 2022, 287, 119324 (IF = 10.72)
4. Mohd. Avais, Subrata Chattopadhyay*, Hierarchical porous polymers via microgel intermediate: green synthesis and applications towards the removal of pollutants, ACS Applied Polymer Materials 2021, 3, 2, 789-800 (IF = 4.85)
5. Mohd. Avais, Subrata Chattopadhyay*, Waterborne pH responsive hydrogels: Synthesis, characterization and selective pH responsive behavior around physiological pH, Polymer 2019, 180, 121701 (IF = 4.43)

From PhD and Postdoctoral research work as lead/first author (5 representative research work):

1. Subrata Chattopadhyay, Filip Du Prez*, Simple design of chemically crosslinked plant oil nanoparticles by triazolinedione-ene chemistry, European Polymer Journal 2016, 81, 77-85 (IF = 5.54)
2. Subrata Chattopadhyay, Elisabeth Heine, Ahmed Mourran, Walter Richtering, Helmut Keul*, Martin Möller*, Waterborne physically crosslinked antimicrobial nanogels, Polymer Chemistry 2016, 7, 364-369 (IF = 5.36)
3. Subrata Chattopadhyay, Elisabeth Therese Heine, Helmut Keul*, Martin Möller*, Multifunctional Poly(vinyl amine)s bearing azetidinium groups: one pot preparation in water and antimicrobial properties, Macromolecular Bioscience, 2014, 14, 1116- 1124. (IF = 5.85)
4. Subrata Chattopadhyay, Helmut Keul*, Martin Möller*, Preparation of waterborne functional polymers using a bifunctional coupler, Green Chemistry 2013, 15, 3135- 3139 (highlighted as a Hot Paper) (IF = 11.03)
5. Subrata Chattopadhyay, Helmut Keul*, Martin Möller*, Synthesis of azetidinium functionalized polymers using a piperazine based coupler, Macromolecules 2013, 46, 638-646 (IF = 6.05)

Review Articles:

1. Kevin De Bruycker, Stijn Billiet, Hannes A. Houck, Subrata Chattopadhyay, Johan M. Winne*, and Filip E. Du Prez*, Triazolinediones as highly enabling synthetic tools, Chemical Reviews 2016, 116, 3919- 3974 (IF = 72.08)

1. Inventors: Chattopadhyay S., Moeller M., Keul H., Durka M, Budzynski J, Title:Textile treatment compounds and compositions, Patent No.:US 9,493,475 B2, Web-link: https://www.google.com/patents/US9493475?cl=en

• Multifunctional Biocompatible Nearly Monodisperse Poly(ethylene glycol) Copolymers via aza-Michael Reactions by Dr. Subrata Chattopadhyay at13th International Virtual Conference on Advancements in Polymeric Materials (APM) 2022 organized by Central Institute of Petrochemicals Engineering & Technology (CIPET), March 8-12, 2022
• Aza-Michael reactions as a tool to prepare functional polymers and materials by Dr. Subrata Chattopadhyay at International Online Conference on Materials Science and Technology (ICMT 2021) organized by Mahatma Gandhi University, Kottayam, Kerala, India, November 12-14, 2021.
• Aliphatic processable functional porous polymers: Hierarchical synthesis via colloidal templating and application towards removal of pollutants by Dr. Subrata Chattopadhyay at 160th Birth Anniversary Celebration of Acharya P.C. Ray & International Seminar (YSC 2021)” Organized by Indian Chemical Society, August1 -8, 2021.
• Hyperbranching Polymerization Induced Self-assembly: from Polymer Colloids to Aliphatic Functional Porous Polymers by Dr. Subrata Chattopadhyay International Conference on Recent Advances in Science at International Conference on Recent Advances in Science organized by Invertis University, April 30 - May 1, 2021.
• Green Synthesis of Polymer Nanoparticles by Dr. Subrata Chattopadhyay at International Conference of Nanotechnology: Ideas, Innovations & Initiatives- 2017 (ICN:3I), December 6-8, 2017, IIT Roorkee, Roorkee, India
• Precise design of functional polymers and materials via robust efficient reactions by Dr. Subrata Chattopadhyay at Indian Association for The Cultivation of Science (IACS) Kolkata, October 27, 2016, Kolkata, India.