• Assistant Professor at Department of Biotechnology, BIT Mesra, Ranchi from July 2016 - till date
• Assistant Professor at Department of Biotechnology, Heritage Institute of Technology, Kolkata from January 2013 to June 2016

• Design and development of Biosensor 
• Bioremediation using immobilized enzyme
• Biofilm-based sensing and remediation

1. Secured 2^nd Position in Higher Secondary among Chittaranjan and recipient of shield and cash award from General Manager of Chittaranjan Locomotives Works
2. ‘Ankan Bivakar’ and ‘Senior Diploma’ in Painting from “Bangio Sangeet Parisad”
3. Award for distinguished contribution in the year 2023, in terms of the overall highest number of research publications, Birla Institute of Technology, Mesra, Ranchi, 2024

PUBLICATIONS

2026

• Kumari M., Chattopadhyay S. 2026, Valorisation of rice straw for lipase immobilisation: toward sustainable treatment of lipid-rich wastewater, Environmental Technology, https://doi.org/10.1080/09593330.2026.2636784 (IF: 2, SCI, Q2)

2025

• Verma B., Chattopadhyay S. 2025, Evaluating the Decolorization Potential of Methylene Blue by Indigenous Bacillus tequilensis BS007 Biofilm Isolated from Industrial Wastes, Bioremediation Journal, https://doi.org/10.1080/10889868.2025.2565245 (IF: 1.4, SCI, Q4)
• Kumari M., Chattopadhyay S. 2025, A D-optimal RSM-guided Computational Strategy for Lipase Immobilization on Rice Straw Toward Enhanced Biocatalytic Efficiency, Preparative Biochemistry & Biotechnology, https://doi.org/10.1080/10826068.2025.2568081 (IF: 1.9, SCIE, Q3)
• Kumari A., Verma B., Chattopadhyay S. 2025, Isolation and Characterisation of Biofilm?Forming Thermophilic Bacteria for Congo Red Decolorization, Current Microbiology, 82: 445-453  https://doi.org/10.1007/s00284-025-04441-5 (IF: 2.6, SCIE, Q3)
• Yadav S., Verma B., Chattopadhyay S. 2025, Isolation and characterization of thermostable biofilm-forming Bacillus subtilis from industrial wastewater for Congo red decolorization, Bioremediation Journal, 1: 1–9 https://doi.org/10.1080/10889868.2025.2522823 (IF: 1.4, SCI, Q4)
• Kumari M., Chattopadhyay S. 2025, High throughput quantification of oil degradation using high-performance thin layer chromatography, Journal of Liquid Chromatography & Related Technologies, 48: 256–262  https://doi.org/10.1080/10826076.2025.2460757  (IF: 1.2, SCIE, Q4)

2024

• Misra M, Das P, Mehra A, Chattopadhyay S. 2024, A Comprehensive Review on the Biofilm-Mediated Removal of Nitrogen and Chemical Oxygen Demand From Different Wastewater Sources, CLEAN - Soil, Air, Water, 0:e202300282; https://doi.org/10.1002/clen.202300282 (IF: 1.4, SCIE, Q3)
• Mehra A, Das P, Chattopadhyay S. 2024, Analyzing the Growth and Characteristics of Pseudomonas aeruginosa Biofilm and Estimating its Cr(VI) Removing Potential from Water, Water Air Soil Pollution, 235: 721-737, https://doi.org/10.1007/s11270-024-07548-w (IF: 1.4, SCIE, Q2)
• Das P, Mehra A, Sachan SG, Chattopadhyay S. 2024, Screening different solid supports for Pseudomonas aeruginosa biofilm formation and determining its efficiency for decolorization and degradation of congo red, Archives of Microbiology, 206: 402-415, https://doi.org/10.1007/s00203-024-04125-x (IF: 2.6, SCIE, Q3)
• Iyer MB, Baradia H., Chattopadhyay S. 2024, Graphene Oxide Enabled Colorimetric Detection of Triglyceride, BioNanoScience, 14: 5044–5054. https://doi.org/10.1007/s12668-024-01493-y (IF: 3.2, SCOPUS, Q3)
• Shambhavi, Iyer MB, Chattopadhyay S., Mondal D. 2024, Colorimetric biosensing of triglyceride in wastewater using lipase immobilized ZnO nanoparticle enriched chitosan nanoconjugate, Journal of Taibah University for Science, 18(1): 2344619—2344628. https://doi.org/10.1080/16583655.2024.2344619 (IF: 4.1, SCIE, Q1)

2023

• Kumari P., Misra M., Mukhopadhyay K., Chattopadhyay S. 2023, In-silico identification and characterization of lipase gene sequences present in hexaploid wheat. South African Journal of Botany, 161: 482 – 488. https://doi.org/10.1016/j.sajb.2023.08.038 (IF: 2.7, SCIE, Q2)
• Iyer M., Chattopadhyay S. 2023, Colourimetric detection of triglycerides using porcine pancreatic lipase immobilized nanocomposite biosensor. Biomass Conversion and Biorefinery, 15, 22093–22102. https://doi.org/10.1007/s13399-023-04458-5 (IF: 4.1, SCIE, Q2)
• Samal S., Misra M., Rangarajan V., Chattopadhyay S. 2023, Antimicrobial nanoparticles mediated prevention and control of membrane biofouling in water and wastewater treatment: Current trends and future perspectives. Applied Biochemistry and Biotechnology, 195 (9): 5458-5477; https://doi.org/10.1007/s12010-023-04497-8 (IF: 3.3, SCIE, Q2)
• Muthu Kumar S., Asani P.C., Baradia H., Chattopadhyay S. 2023, Process optimization and techno-economic analysis for the production of lipase from Bacillus sp. Journal of Taibah University for Science, 17: 1—8. https://doi.org/10.1080/16583655.2023.2198925 (IF: 4.1, SCIE, Q1)
• Sunanda, Varsha, Prajakti, Chattopadhyay S., Sachan S.G. 2023, Biodegradation of Polycyclic Aromatic Hydrocarbons and the Impact of Various Genes for their Enhanced Degradation. Letters in Applied Microbiology, 76: 1—15. https://doi.org/10.1093/lambio/ovac062 (IF: 2.1, SCI, Q3)
• Baradia H., Kumar S.M., Chattopadhyay S. 2023, Techno-economic analysis of production and purification of lipase from Bacillus subtilis (NCIM 2193). Preparative Biochemistry & Biotechnology, 53: 1237–1242. https://doi.org/10.1080/10826068.2023.2185638 (IF: 1.9, SCIE, Q3)
• Kumari M., Chattopadhyay S. 2023, The evaluation of the performance of rice husk and rice straw as potential matrix to obtain the best lipase immobilized system: creating wealth from wastes. Preparative Biochemistry & Biotechnology, 53: 763—772. https://doi.org/10.1080/10826068.2022.2140355 (IF: 1.9, SCIE, Q3)

2022

• Mahata P., Laxminarsimharao V., Chattopadhyay S. 2022, A mechanical-thermodynamic model for understanding endocytosis of COVID-19 virus SARS-CoV-2. Journal of Mechanical Engineering Science, 236: 9431—9440. https://doi.org/10.1177/09544062221098538 (IF: 1.7, SCI)
• Iyer M., Shreshtha I., Baradia H., Chattopadhyay S. 2022, Challenges and opportunities of using immobilized lipase as biosensor. Biotechnology and Genetic Engineering Reviews, 38: 87—110. https://doi.org/10.1080/02648725.2022.2050499 (IF: 1.9, SCIE, Q2)
• Singh N., Verma A., Kaur I., Chattopadhyay S. 2022, A Comprehensive Review on the Potential Use of Immobilized Lipase as Biosensor – Its Present Scenario and Prospects. Research Journal of Biotechnology, 17: 145-- 150. (IF: 0.15, SCOPUS, Q4)
• Misra M., Chattopadhyay S., Sachan A., Sachan S.G. 2022, Microbially synthesized nanoparticles and their applications in environmental clean-up. Environmental Technology Reviews, 11: 18—32. https://doi.org/10.1080/21622515.2021.2011431 (IF: 7.0, SCOPUS, Q1)

2020-2021

• Thakur D., Jha A.K., Chattopadhyay S., Chakraborty S. 2021, A review on opportunities and challenges of nitrogen removal from wastewater using microalgae. International Journal of Experimental Research and Review, 26: 141—157
• Rani S, Kumari P, Poddar R, Chattopadhyay S. 2021, Study of lipase producing gene in wheat–an in silico approach. Journal of Genetic Engineering and Biotechnology, 19: 73—86. https://doi.org/10.1186/s43141-021-00150-1 (IF: 3.6, SCOPUS, Q2)
• Das P, Chattopadhyay S. 2021, Process Improvisation Strategies for the Enhancement of Lipase Activity. Research Journal of Biotechnology, 16: 114—121 (IF: 0.15, SCOPUS, Q4)
• Mohan M, Alam Z, Poddar R, Chattopadhyay S. 2020, Real-time assessment and characterization of immobilized lipase onto a natural matrix and qualitative reaction kinetic studies using swept-source optical coherence tomography. 3 Biotech, 10: 423–433. https://doi.org/10.1007/s13205-020-02408-w (IF: 2.9, SCIE, Q1)

Up to 2020

• Tapadar S, Chattopadhyay S. 2016, Continuous Hydrolysis of Olive Oil Using Indigenously Developed Immobilized Lipase With Higher Efficiency. International Journal of Pharma and Bio Sciences, 7(3): (B) 617–625
• Paul D, Saha S, Pramanick S, Chattopadhyay S. 2015, Standardization of process parameters for the maximum production of extracellular lipase by bacteria isolated from indigenous sources. International Research Journal of Engineering and Technology, 2: 682–688
• Chattopadhyay S, Sen R. 2013, Fuel properties, engine performance and environmental benefits of biodiesel produced by a green process. Applied Energy 105: 319–326, https://doi.org/10.1016/j.apenergy.2013.01.003 (IF: 11.0, SCIE)
• Chattopadhyay S, Sen R. 2013, Development of a novel integrated continuous reactor system for biocatalytic production of biodiesel. Bioresource Technology 147: 395–400, https://doi.org/10.1016/j.biortech.2013.08.023 (IF: 9.0, SCIE)
• Chattopadhyay S, Sen R. 2012, A comparative performance evaluation of jute and eggshell matrices to immobilize pancreatic lipase. Process Biochemistry 47: 749–757, https://doi.org/10.1016/j.procbio.2012.02.003 (IF: 4.0, SCIE)
• Chattopadhyay S., Karemore A., Das S., Deysarkar A., Sen R. 2011, Biocatalytic production of biodiesel from cottonseed oil: Standardization of process parameters and comparison of fuel characteristics. Applied Energy, 88: 1251–1256, https://doi.org/10.1016/j.apenergy.2010.10.007 (IF: 11.0, SCIE)
• Chattopadhyay S., Das S., Sen R. 2011, Rapid and precise estimation of biodiesel by high performance thin layer chromatography, Applied Energy 88: 5188–5192, https://doi.org/10.1016/j.apenergy.2011.07.027 (IF: 11.0, SCIE)

BOOK CHAPTERS

• Chattopadhyay S., Mukerji A., Sen R., 2009, Biofuels; In: Biotechnology for agro industrial residues utilization, Eds.: Singh Nigam P, Pandey A; Springer, Netherlands, pp: 61–76; ISBN 978-1-4020-9941-0.
• Chattopadhyay S., Sen R., 2020, Materials and Methods for Biodiesel Production; In: Sustainable Agriculture Reviews 39, Eds.: Eric Lichtfouse; Springer Nature Switzerland AG, pp: 179-204; ISBN 978-3-030-38880-5.
• Misra M., Sachan S.G., Chattopadhyay S., 2021, Remediation of heavy metals from wastewater treatment plants using bacteria and algae;  In: New Trends in Removal of Heavy Metals from Industrial Wastewater, Elsevier, pp: 525-550; ISBN: 978-0-12-822965-1.
• Kaur I., Chattopadhyay S., 2022, Immobilized Lipase for Industrial Biodiesel Production; In: Bio-Clean Energy Technologies, Springer Nature Singapore, pp: 259-278; Series ISSN: 2662-6861

CONFERENCE

• Chattopadhyay S., Karemore A. and Sen R. Production of biodiesel from renewable resources using immobilized lipase, Proceeding of the International Symposium on Renewable Feedstock for Biofuel and Bio-based Products, University of Texas at Austin, USA, August 11–13, 2010, p: 31
• Chattopadhyay S. and Sen R. Production of Biodiesel from Waste Cooking Oil Using Immobilized Lipase, Proceeding of the International Conference on “Bioenergy from Wastes: Green Chemistry Interventions”, NEERI, Nagpur, India, November 25–26, 2010, p: 32 
• Ghosh U. and Chattopadhyay S. Production and partial purification of lipase using bacteria isolated from indigenous sources,  Proceeding of the International Conference on “Advances in Bioprocess Engineering and Technology”, HIT Kolkata, India, January 20−22, 2016
• Das P. and Chattopadhyay S. Production of cost effective lipase from indigenous soil source. National conference on “Recent trends in Bioprocessing for Healthcare, Energy and Environment” at 5th Bioprocessing India 2017, IIT Guwahati, India, 9 to 11 December, 2017
• Ghoshal S., Das P. and Chattopadhyay S. Production of cost effective lipase from indigenous soil source. International Conference on Bioprocess for Sustainable Environment and Energy ICBSEE, NIT Rourkela, Odisha, India, 6 to 7 December, 2018
• Saha S. and Chattopadhyay S. Production of biodiesel using immobilized lipase. 59^th Annual Conference of Association of Microbiologists of India (AMI- 2018) & International Symposium on Host Pathogen Interactions, University of Hyderabad, India, 9 to 12 December 2018
• Rani S. and Chattopadhyay S. Study of Lipase Producing Gene in Wheat – An in-silico Approach. Recent Advances in Plant Sciences, Biotechnology and Bioinformatics (RAPSBB-2020), Berhampur University, Berhampur (Odisha), 17 to 18 February 2020.
• Kumari M, Iyer M, Chattopadhyay S. Lipase Immobilized Magnetic nanocomposite for Industrial Applications. 3^rd International Conference on Bioprocess for Sustainable Environment and Energy ICBSEE, NIT Rourkela, Odisha, India, 20 to 24 June, 2022
• Meh Jabeen, Chattopadhyay S. In-silico identification and characterization of lipase gene(s) from the wheat genome. 2^nd International Conference on ‘Frontiers in Modern Biology’, School of Life Science & Biotechnology, Adamas University, Kolkata, India, 21-23 September, 2022
• Iyer M, Chattopadhyay S. Lipase Immobilized Magnetic Copper Nanoparticles for Biosensor Applications. International Conference on Recent Advances in Biotechnology (icRAB), NIT Jalandhar, Punjab, India, 2 to 4 December, 2022
• Kumari M, Chattopadhyay S. Agro-industrial waste used as support for lipase immobilization. International Conference on Recent Advances in Biotechnology (icRAB), NIT Jalandhar, Punjab, India, 2 to 4 December, 2022
• Shambhavi, Chattopadhyay S. Colorimetric Detection of Triglyceride using Metal Nanoconjugates. International Conference on Recent Advances in Biotechnology (icRAB), NIT Jalandhar, Punjab, India, 2 to 4 December, 2022
• Chattopadhyay S, Iyer M. Development of an Enzyme-Nanoconjugate Biosensor for Triglyceride Detection. ChEmference – 2023, BITS Pilani, Goa, India, 30 September to 2 October, 2023
• Iyer M, Chattopadhyay S. Nanocomposite-based enzymatic detection of triglycerides. Vistas in Life Sciences, JNU, India, 21-24 January, 2024
• Kumari M, Chattopadhyay S. Rapid Quantification of Immobilized-Lipase Mediated Oil Degradation using High-Performance Thin-Layer Chromatography. 1^st International Conference On “Separation & Purification Techniques: Environmental Applications”, Department of Chemical Engineering, NIT Raipur, Chhattisgarh, India, 19–20 January, 2024
• Das P, Chattopadhyay S. Biofilm Mediated Decolorization and Degradation of Azo Dyes. International Conference on Fungal Biology and Plant-Microbe Interactions 2024 (ICFBPMI-2024), Centre of Advanced Study (CAS) in Botany, Institute of Science, Banaras Hindu University (BHU), Varanasi, U.P., India,  February 16-18, 2024
• Mehra A, Chattopadhyay S. Removal of Inorganic Pollutants from Wastewater using Bacterial Biofilm. International Conference on Fungal Biology and Plant-Microbe Interactions 2024 (ICFBPMI-2024), Centre of Advanced Study (CAS) in Botany, Institute of Science, Banaras Hindu University (BHU), Varanasi, U.P., India,  February 16-18, 2024
• Kumari A, Chattopadhyay S. Biofilm forming Thermphilic Bacteria’s Drug Resistance Mechanism. International Conference on Advances in Medical Biotechnology (ICAMB 2025), Department of Biotechnology, Heritage Institute of Technology, Kolkata, WB, India, January 20-22, 2025
• Yadav S, Chattopadhyay S. Isolation and characterisation of thermostable biofilm producing bacteria from water. International Conference on Advances in Medical Biotechnology (ICAMB 2025), Department of Biotechnology, Heritage Institute of Technology, Kolkata, W.B., India, January 20-22, 2025
• Verma B, Chattopadhyay S. Degradation of Congo Red using Bacterial Biofilm. 65th Annual International Conference of the Association of Microbiologists of India (AMI-2024), Department of Biotechnology, Guru Jambheshwar University of Science and Technology, Hisar,Haryana, India, November 14-17,2024
• Verma B, Chattopadhyay S. Analyzing Congo Red Dye Degradation Using Bacterial Biofilms. 4th International Conference on Bioprocess for Sustainable Environmental and Energy(ICBSEE-2024), Department of Biotechnology and Medical Engineering , National Institute of Technology, Rourkela, Odissa, India, November 29- December 1, 2024
• Verma B, Chattopadhyay S. Biodegradation of Methylene Blue by Bacterial Biofilm Isolated from Soils Near Textile Industry. National Conference on Biotechnology for Sustainable Development (BSD-2025), Department of Bioengineering and Biotechnology, Birla Institute of Technology Mesra ,Ranchi, Jharkhand, India, March 27-29, 2025

Life Member of:

1. Asian Federation of Biotechnology (AFOB) (Registration No.: IN00253)

2. Indian Science Congress Association (ISCA)

• Iyer M., Chattopadhyay S., A Method For Nanoconjugate-Based Lipid Assessment, Patent Appl. no: 202531087729 (Published; Date: 26-09-2025)
• Iyer M., Chattopadhyay S., A Nanoparticle-Based Method For determining Fatty Acid In Sample, Patent Appl. no: 202531000513 (Published; Date: 10-01-2025)
• Soham Chattopadhyay, Ankush Karemore, Ramkrishna Sen; A Continuous process for the bio-catalytic production of biodiesel, Patent Appl. no: 404/ KOL/2011
• Goldy De Bhowmick, Soham Chattopadhyay, Ramkrishna Sen, Bhim Chandra Meikap; An efficient, cost-effective, reusable and eco-friendly algal biomass dewatering system and an accelerated adsorption process thereof, Patent Appl. no: 1253/ KOL/2012