Dr. Das Research Group

Selected Journal Publications 

(Full list avilable in https://scholar.google.com/citations?user=Yy7uj0AAAAAJ&hl=en)

1. Shivam K Dubey, Harsh D Varma, Dulal Senapati, and Prasanta Das*, Experimental and theoretical identification of photo-labile phenolate intermediate of antimicrobial agent triclosan in aqueous solution. J. Mol. Struct. 2026, 1345, 143730/1-11. 

2. Amar Ghosh, Murugesan Panneerselvam, Sourav Mondal, Prasanta Das, Tukai Singha, Subhasis Rana, Luciano T. Costa, Biswarup Satpati, Suman Das, Ujjal Kumar Sur, and Dulal Senapati* Parallel Plate Capacitor Model at the Nanoscale for Stable and Gigantic SERS Activity of the 4‑MBA@R-AuNP−4-MBA@R-AuNP System, ACS Omega 2024, 9, 41504-41520.

3. Pawan Kumar Gupta, Shyam Sunder Pancholi, Prasanta Das*, In vitro drug release testing method for nepafenac ophthalmic suspension, J. Pharma. Sci., 2024, 113, 1061 - 1067.    

4. Bedabyas Behera and Prasanta Das*, A spectroscopic method for monitoring photochemical reactions in the gas phase, MethodsX, 2022, 101847/1 - 8. 

5. Bedabyas Behera and Prasanta Das*, HCl elimination in the photolysis of chlorobenzene at 266 nm: An FT-IR spectroscopy and quantum chemical study, Chem. Phys. Lett. 2021, 774,138601/1-8.

6. Prasanta Das, Chrissy J. Knapp, and Wolfgang Jäger, Ro-vibrational spectroscopy of the formic acid-d1 monomer embedded in helium nanodroplets, J. Mol. Spectrosc. 2017, 341, 17-22 (Cover page article).

7. Prasanta Das, Masashi Tsuge, and Yuan-Pern Lee, Infrared absorption of t-HOCO+, H+(CO2)2, and HCO2- produced in electron bombardment of CO2 in solid para-H2, J. Chem. Phys. 2016, 145, 014306/1-014306/12.

8. Prasanta Das*, Puspendu K. Das, and E. Arunan, Conformational Stability and Intramolecular Hydrogen Bonding in 1,2-Ethanediol and 1,4-Butandiol, J. Phys. Chem. A 2015, 119, 3710-3720.

9. Prasanta Das and Yuan-Pern Lee, Bimolecular reaction of CH3 + CO in solid p-H2: Infrared absorption of acetyl radical (CH3CO) and CH3-CO complex, J. Chem. Phys. 2014, 140, 244303/1-244303/12.

10. Mohammed Bahou, Prasanta Das, Yu-Fang Lee, Yu-Jong Wu, and Yuan-Pern Lee, Infrared spectra of free radicals and protonated species produced in p-H2 matrices, Phys. Chem. Chem. Phys. 2014, 16, 2200-2210 (Perspective article).

11. Barbara Golec, Prasanta Das, Mohammed Bahou, and Yuan-Pern Lee, Infrared spectra of 1-pyridinium (C5H5NH+) cation and pyridinyl (C5H5NH and 4-C5H6N) radicals isolated in solid para-hydrogen, J. Phys. Chem. A 2013, 117, 13680-13690 (Accepted in Terry A. Miller Festschrift issue).

12. Prasanta Das, and Yuan-Pern Lee, Infrared absorption of 3-propenonyl (·CH2CH=C=O) radical generated upon photolysis of acryloyl chloride CH2=CHC(O)Cl in solid para-H2, J. Chem. Phys. 2013, 139, 084320/1-084320/10.

13. Prasanta Das, Mohammed Bahou, and Yuan-Pern Lee, Reactions between atomic chlorine and pyridine in solid para-hydrogen: Infrared spectrum of the 1-chloropyridinyl (C5H5NCl) radical, J. Chem. Phys. 2013, 138, 054307/1-054307/10.

14. Prasanta Das, E. Arunan, and Puspendu K. Das, Infrared Spectra of Dimethylphenanthrenes in the Gas phase, J. Phys. Chem. A, 2012, 116, 5769-5778 (Accepted in A. R. Ravishankara festschrift issue).

15. Prasanta Das, S. Manogaran, E. Arunan, and Puspendu K. Das, Infrared Spectra of Dimethylquinolines in the Gas Phase: Experiment and Theory, J. Phys. Chem. A 2010, 114, 8351-8358.

Book Publications

1. Prasanta Das, Chapter: Continuous Scan and Repetitive Mode FT-IR Spectroscopy and Its Application in Isomeric Identification, Conformational Analysis and Photochemistry. In: Marwa El-Azazy, Khalid Al-Saad and Ahmed El-Shafie, Editors.  Infrared Spectroscopy - Perspectives and Applications. London: IntechOpen; August 17, 2022. pp. 1 - 21.

2. Prasanta Das and Shubhadip Chakraborty, Gas Phase Infrared Spectra of PAHs and Methylated-PAHs, LAP Lambert Academic Publishing, Germany, July 26, 2018 (Reference Book)

Invited Lecture & Oral Presentations

1. Oral presentation: “Exploring Interstellar Molecules with Helium Nanodroplets and para-H₂ Matrix” Prasanta Das, Genesis and Evolution of Organics in Space, Organized by Gitam University, Bengaluru,  Karnataka, 16th to 18th July, 2025. (International)

2. Oral presentation: “The Mineral Composition of Insulin Plant Using Inductively Coupled Plasma Mass Spectrometer” Prasanta Das and Maharshi Hiren Bhatt, Research Conclave, Organized by Ganpat University, Kherva, Mehsana, Gujarat, 26th to 27th September, 2024.(National) 

3. Oral/poster presentation: “Investigation of HBr Elimination in the Photolysis of Bromobenzene at 266 nm Using Repetitive Scan FT-IR Spectroscopy and DFT Calculations”, Prasanta Das and Bedabyas Behera, International Conference on Key Intermediates in Atmospheric Chemistry and Astrochemistry, Organized by National Yang Ming Chiao Tung University, Hsinchu, Taiwan, 23rd  to 25th  January, 2024. (International) 

4. Oral presentation: “Qualitative Analysis and Extraction of Insulin Plant Chamaecostus Igneus” Maharshi Bhatt and Prasanta Das, International conferences on Food, Agriculture, Science and Technology InCoPFAST 2023 organized by Ganpat University, Gujarat, Kherva, Mehsana, India, 22nd - 23rd December 2023. (International)

5. Invited talk: “Infrared Absorption of Phenolated Triclosan in Aqueous Solution” Prasanta Das, in Physical Chemistry Symposium PCS2023, organized by the Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore, Karnataka, India, 3rd - 5th July, 2023. (International)

6. Oral Presentation: “FT-IR Spectroscopy for monitoring Photo-Induced Degradation Processes Relevant to the Pharmaceutical and Atmospheric Chemistry” in international conferences on Food, Agriculture, Science and Technology INCOFAST 2022 organized by Ganpat University, Gujarat, Kherva, Mehsana, India, 02nd - 03rd December, 2022. (International)

7. Invited Webinar: “Identification of Transient Chemical Species Using Infrared Spectroscopy” in research talk organized by Department of Chemistry, School of Engineering, Presidency University, Bangaluru, Karnataka, India, 11th December, 2021. 

8. Invited Webinar: “Conformational analysis using Infrared spectroscopy” in celibration of “International Chemistry Week 2021” organized by Department of Chemistry, MUIS, Ganpat University, Kherva, Mehsana, Gujarat, India, 20th October, 2021.

9. Invited Webinar: “Infrared Spectroscopy of Transient Chemical Species in Helium Nanodroplets”, in webinar series on “Spectroscopy and It’s Perspectives” organized by PG & Research Department of Physics, Sacred Heart College, Tirupattur, Tamil Nadu, India, 17th July 2020.

10. Prasanta Das, “HCl Elimination in the UV photodissociation of chlorobenzene: A repetitive scan FT-IR spectroscopy and quantum chemical study” 8th International Conference on Perspectives in Vibrational Spectroscopy (ICOPVS), JNCASR, Bangalore, India, 24th - 28th February 2020.

11. Invited Lecture on “Teaching and Learning Methodology”, in a seminar organized by the Department of Computer Science and Engineering, I.E.R.T. Allahabad, 21st - 22nd February 2018.

12. Prasanta Das, Chrissy J. Knapp, and Wolfgang Jaeger, “Formation of the cyclic formic acid dimer in helium nanodroplets”, The 32nd Symposium on Chemical Physics, Centre for Environmental & Information Technology, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada, 4th - 6th November 2016.

13. Prasanta Das and Yuan-Pern Lee, “UV photolysis of acetyl chloride [CH3C(O)Cl] and CH3I/CO in solid para-H2: Infrared absorption of acetyl radical (CH3CO) and CH3·CO complex” 2014 Spring Symposium of Photochemistry Association in Taiwan, Department of Chemistry, National Tsing Hua University and Chemistry Research Promotion Center, Hsinchu, 20th January 2014.

Selected Poster Presentations

1. Prasanta Das, Invited poster - “Photochemistry of halobenzenes (C6H5X) - Probe the HX elimination channel using repetitive scan FT-IR spectroscopy and ab initio calculations”, Physical Chemistry Symposium (SoPhyC-2024), Society of Physical Chemistry, Indian Institute of Technology Bombay, Maharashtra, India, 22nd to 25th October, 2024. (International)

2. Prasanta Das and Bedabyas Behera, Oral/poster presentation: “Investigation of HBr Elimination in the Photolysis of Bromobenzene at 266 nm Using Repetitive Scan FT-IR Spectroscopy and DFT Calculations”, International Conference on Key Intermediates in Atmospheric Chemistry and Astrochemistry, Organized by National Yang Ming Chiao Tung University, Hsinchu, Taiwan, 23rd  to 25th  January, 2024. (International)

3. Junakiya Mustak Aarifbhai and Prasanta Das, “Identification of toxic product upon UV photolysis of Triclosan in aqueous medium using spectroscopy and DFT calculations” SHODH-2023-24: GUNI Student Research Convention, Ganpat University, Kherva, Mehsana, Gujarat, India, 13th to 14th October, 2023. (International)

4. Prasanta Das, Harsh D Varma, and Shivam K Dubey, “Infrared absorption of phenolate form of antibacterial and antifungal agent triclosan in aqueous medium ” ACS Fall 2023 : Optical Spectroscopy and Microscopy Across Biological Scales, American Chemical Society, San Francisco, California, USA, 13th - 17th August 2023. (Selected for Live poster event) (International)

5. Shivam K Dubey, Harsh D Varma, and Prasanta Das, Preparation and Identification of Phenolated Triclosan (TCS) in Aqueous Solutions, SHODH-2022-23: Student Research Convention, Ganpat University, Kherva, Mehsana, Gujarat, India, 31st December 2022. (International)

6. Dhruv B Patel, Saumil V Patel, Prasanta Das, Identification of Photoinduced Variants of Vitamin K1 - Spectroscopic and DFT Studies, SHODH-2022-23: Student Research Convention, Ganpat University, Kherva, Mehsana, Gujarat, India, 31st December 2022. (International)

7. Shivam K Dube, Harsh Varma, Prasanta Das, “Reaction of Antifungal and Antimicrobial agent Triclosan (C12H7Cl3O2) with NaOH: Infrared and Electronic Spectroscopic and Quantum Chemical Studies” International conferences on Food, Agriculture, Science and Technology (INCOFAST 2022), Ganpat University, Gujarat, Kherva, Mehsana, India, 02nd - 03rd December, 2022. (International) 

8. Prasanta Das and Wolfgang Jäger, “Investigation of the helium nanodroplet isolated trans-HCOOH∙∙∙∙N2 complex by infrared laser spectroscopy” ACS Spring 2021(Virtual), 5 - 16 April 2021. (Selected for Live poster event). 

9. Prasanta Das and Yuan-Pern Lee, “Photolysis of propenoyl chloride CH2CHC(O)Cl in solid para-H2: Infrared spectrum of the propenonyl (ĊH2CHCO) radical” 2013 Spring Symposium of Photochemistry Association in Taiwan, Soochow University, Taipei, 15th - 16th January 2013. (Best poster presentation award)

10. Prasanta Das, Mohammed Bahou and Yuan-Pern Lee, “Infrared studies of reactions between pyridine and atomic chlorine in a p-H2 matrix”, Annual Meeting of Chinese Chemical Society, National Tsing Hua University, Hsinchu, 3rd - 4th December 2011.

11. Prasanta Das, E. Arunan and Puespendu K. Das, “Is there Intramolecular Hydrogen Bonding in diols” An FT-IR and DFT investigation, ASRC-TSRP-2010, BARC, Treasure Island Resorts, Mumbai - Pune Highway NH4, Lonavala, India, 14th - 17th September 2010.

12. Prasanta Das, S. Manogaran, E. Arunan and Puspendu K. Das, “Infrared Spectra of Dimethylquinolines (DMQs) in the Gas Phase: Experiment and Theory” SDMC, Dona Paula, Goa, India, 18th - 20th February 2010.

13.  Prasanta Das, E. Arunan and Puspendu K. Das, “Infrared spectra of gas phase dimethyl-naphthalenes and phenanthrenes” SDMC, Mahabalipuram, India, 22nd - 24th February 2008.

14. Prasanta Das, E. Arunan and Puspendu K. Das, “Theoretical and experimental infrared spectroscopic study of dimethylnaphthalenes in the gas phase”, First Asian Spectroscopy Conference, IISc, Bangalore, India, 29th Jan - 2nd February 2007.