Biophysical Chemistry

1. Senior Research Associate (Scientists' Pool Scheme) at Centre for Cellular and Molecular Biology, Hyderabad, India (8/2012 - 11/2014)
2. Postdoctoral Research Associate at the University of North Carolina at Chapel Hill, NC, USA (8/2007 - 1/2012)
3. Research Associate at Saha Institute of Nuclear Physics, Kolkata, India (12/2006 - 7/2007)

Post Graduate Level

:

Chemical Kinetics, Bioinorganic Chemistry, Inorganic Reaction Dynamics, Fluorescence Spectroscopy, Medicinal Chemistry

1. Mechanistic details of membrane fusion: Implication in viral entry
2. Development of peptide-based membrane fusion inhibitor: Implication in broad-spectrum entry inhibitors
3. Lipid-peptide interaction
4. Membrane organization and dynamics

Ph.D. Candidates	:	1. Geetanjali Meher (2016-2020) 2. Gourab Prasad Pattnaik (2016-2020) 3. Lipika Mirdha (2017-2022) 4. Ankita Joardar (2018- ) 5. Swaratmika Pandia (2022- ) 6. Smruti Mishra (2022- ) 7. Sasmita Pradhan (2022- ) 8. Manbit Subhadarsi Panda (2023- )
M.Tech./M.Phil. Candidates	:	M.Phil: 06

1. Best Teacher Award (Science and Technology), Sambalpur University, Jyoti Vihar, Odisha, 2022
2. Science and Engineering Research Board-Science and Technology Research Award (SERB-STAR), DST, New Delhi, 2021
3. Early Career Research Award, Science and Engineering Research Board (SERB), DST, New Delhi, 2016
4. V. S. R. Rao Award for the Best Poster at Indian Biophysical Society Annual Meeting on ‘Molecules in Living Cells: Mechanistic Basis of Function’ at Indian Institute of Science, Bangalore, 8-10th February, 2016.
5. CSIR Travel Grant to attend WE-Heraeus-Seminar: Physical Approaches to Membrane Proteins. Physikzentrum Bad Honnef, Germany, 2014.
6. Research fellowship by Saha Institute of Nuclear Physics, Kolkata, India (2000 – 2006).

1. Indian Photobiology Society (IPS)
2. Indian Biophysical Society (IBS)
3. Orissa Chemical Society (OCS)
4. Chemical Research Society of India (CRSI)

1. Project Title: Exploring the interplay of viral fusion peptide with lipid membranes to unravel the mechanism underlying the cellular entry of enveloped viruses Funding Agency: Core Research Grant, SERB, DST, New Delhi Funding Years: 2021-2024, Amount: 61.78 Lakhs, File Number: CRG/2021/001515
2. Project Title: Development of broad-spectrum peptide-based entry inhibitors to combat emerging and re-emerging viral infections Funding Agency: SERB-Science and Technology Research Award (SERB-STAR), SERB, DST, New Delhi Funding Years: 2021-2024, Amount: Rs. 38.5 Lakhs, File Number: STR/2021/000029
3. Project Title: Effect of unsaturated fatty acids on membrane organization, dynamics, and fusion Funding Agency: S & T Department, Government of Odisha Funding Years: 2019-2023, Amount: 10.0 Lakhs, File No. ST-SCST-MISC-0061/2018/2694
4. Project Title: Development of Broad-Spectrum Peptide-based Membrane Fusion Inhibitors Funding Agency: Early Career Research Award, SERB, DST, New Delhi Funding Years: 2016-2019, Amount: 36.69 Lakhs, File No. ECR/2015/000195
5. Project Title: Insight into the aggregation behavior of the amyloidogenic proteins in presence of membranes. Funding Agency: UGC-Start-Up Grants from UGC, New Delhi Funding years: 2015-2017, Amount: 6.0 Lakhs, File No. F.4-5(138-FRP)/2014(BSR)

International Publications

2023
1. Joardar A, Pandia S and Chakraborty H*. Effect of Polyunsaturated Free Fatty Acids on Membrane Fusion Mechanism. Soft Matter 2023, 19: 733-742.
2022
2. Chakraborty H* and Sengupta D. Preface to Special Issue on Protein-Mediated Membrane Remodeling. J. Membr. Biol. 2022, 255: 633 - 635.
3. Mirdha L, Sengupta T and Chakraborty H*. Lipid composition dependent binding of apolipoprotein E signal peptide: Importance of membrane cholesterol in protein. Biophys. Chem, 2022, 291: 106907
4. Gupta A, Kallianpur M, Saha Roy D, Engberg O, Chakraborty H, Huster D and Maiti S. Different Membrane Order Measurement Techniques are Not Mutually Consistent. Biophys. J. 2022 (In Press).
5. Mirdha L and Chakraborty H*. Membrane cholesterol modulates the dynamics and depth of penetration of k-casein. J. Mol. Liquids 2022, 363: 119849.
6. Joardar A, Pattnaik GP, and Chakraborty H*. Combination of oleic acid and gp41 fusion peptide switches the phosphatidylethanolamine-induced membrane fusion mechanism from non-classical to classical stalk model. J. Phys. Chem. B 2022, 126: 3673–3684.
7. Joardar A, Pattnaik GP, and Chakraborty H*. Mechanism of Membrane Fusion: Interplay of Lipid and Peptide. J. Membr. Biol. 2022, 255: 211-224.
2021
8. Joardar A, Pattnaik GP, and Chakraborty H*. Effect of phosphatidylethanolamine and oleic acid on membrane fusion: phosphatidylethanolamine circumvents classical stalk model. J. Phys. Chem. B 2021, 125: 13192-13202.
9. Bhuyan NN, Joardar A, Bag BP, Chakraborty H*, and Mishra A*. Exploring the Inclusion Complex Formation of 3-Acetylcoumarin with β-Cyclodextrin and its Delivery to a Carrier Protein: A Spectroscopic and Computational Study. J. Mol. Liq. 2021, 344: 117752.
10. Pal S, Chakraborty H and Chattopadhyay A. Lipid Headgroup Charge Controls Melittin Oligomerization in Membranes: Implications in Membrane Lysis. J. Phys. Chem. B 2021, 125: 8450-8459. (Published as part of The Journal of Physical Chemistry virtual special issue
11. Pattnaik GP and Chakraborty H*. Fusogenic effect of cholesterol prevails over the inhibitory effect of a peptide-based membrane fusion inhibitor. Langmuir 2021, 37: 3477-3489.
12. Pattnaik GP, Bhattacharjya S and Chakraborty H*. Enhanced Cholesterol-dependent Hemifusion by Internal Fusion Peptide 1 of SARS Coronavirus-2 Compared to its N-terminal Counterpart. Biochemistry 2021, 60: 559-562.
13. Mirdha L and Chakraborty H*. Fluorescence-based techniques for the detection of the oligomeric status of proteins: Implication in amyloidogenic diseases. Eur. Biophys. J. 2021, 50: 671-685.
14. Bhuyan NN, Pattnaik GP, Mishra A* and Chakraborty H*. Exploring membrane viscosity at the headgroup region utilizing a hemicyanine-based fluorescent probe. J. Mol. Liq. 2021, 325: 115152.
15. Meher G and Chakraborty H*. The Role of Fusion Peptides in Depth-dependent Membrane Organization and Dynamics in Promoting Membrane Fusion. (Invited Review) Chem. Phys. Lipids. 2021, 234: 105025.
2020
16. Joardar A, Meher G, Bag BP, and Chakraborty H*. Host-guest Complexation of Eugenol in Cyclodextrins for Enhancing Bioavailability. J. Mol. Liq. 2020, 319: 114336.
17. Pattnaik GP, and Chakraborty H*. Entry Inhibitors: Efficient Means to Block Viral Infection. (Invited Review) J. Membr. Biol. 2020, 253: 425–444.
18. Chakraborty H*, and Bhattacharya S*. Mechanistic Insights of Host Cell Fusion of SARS-CoV-1 and SARS-CoV-2 from Atomic Resolution Structure and Membrane Dynamics. (Invited Review) Biophys. Chem. 2020, 265: 106438.
19. Mirdha L and Chakraborty H*. Fluorescence Quenching by Ionic Liquid as a Potent Tool to Study Protein Unfolding Intermediates. J. Mol. Liq. 2020, 312: 113408.
20. Chakraborty H. Membrane Cholesterol and SARS-CoV-2 Infection: A Possible Connection. (Opinion Article) Curr. Sci. 2020, 118: 1157.
21. Rao BD, Chakraborty H, Chaudhuri A, and Chattopadhyay A. Differential Sensitivity of pHLIP to Ester and Ether Lipids. Chem. Phys. Lipids 2020, 226: 104849.
2019
22. Meher G, Bhattacharjya S, and Chakraborty H*. Membrane Cholesterol Modulates Oligomeric Status and Peptide-membrane Interaction of Severe Acute Respiratory Syndrome Coronavirus Fusion Peptide. J. Phys. Chem. B 2019, 123: 10654-10662.
23. Barla LS, Pattnaik G P, Meher G, Padhan SK, Sahu SN*, and Chakraborty H*. Fluorescence-based Ion Sensing in Lipid Membranes: A Simple Way of Sensing in Aqueous Medium with Enhanced Efficiency. RSC Advances 2019, 9: 31030-31034.
24. Pattnaik GP, and Chakraborty H*. Cholesterol Alters the Inhibitory Efficiency of Peptide-based Membrane Fusion Inhibitor. Biochim. Biophys. Acta (Biomembranes) 2019, 1861:183056.
25. Meher G, Sinha S, Pattnaik GP, Ghosh Dastidar S, and Chakraborty H*. Cholesterol Modulates Membrane Properties and the Interaction of gp41 Fusion Peptide to Promote Membrane Fusion. J. Phys. Chem. B 2019, 123: 7113-7122.
26. Meher G and Chakraborty H*. Membrane Composition Modulates Fusion by Altering Membrane Properties and Fusion Peptide Structure. (Invited Review) J. Membr. Biol. 2019, 252: 261-272.
27. Mirdha L and Chakraborty H*. Characterization of Structural Conformers of κ-casein Utilizing Fluorescence Spectroscopy. Int. J. Biol. Macromol. 2019, 131: 89-96.
2018
28. Pattnaik GP and Chakraborty H*. Coronin 1 Derived Tryptophan-Aspartic Acid Containing Peptides Inhibit Membrane Fusion. Chem. Phys. Lipids 2018, 217: 35-42.
29. Rao BD, Chakraborty H, Keller S and Chattopadhyay A. Aggregation Behavior of pHLIP in Aqueous Solution at Low Concentrations: A Fluorescence Study. J. Fluoresc. 2018, 28: 967-973.
30. Pattnaik GP, Meher G, and Chakraborty H*. Exploring the Mechanism of Viral Peptide-induced Membrane Fusion. Adv. Exp. Med. Biol. 2018, 1112: 69-78.
31. Meher G, and Chakraborty H*. Influence of Eugenol on the Organization and Dynamics of Lipid Membranes: A Phase-Dependent Study. Langmuir 2018, 34: 2344-2351.
32. Chakraborty H, Jafurulla M, Clayton AHA, Chattopadhyay A. Exploring Oligomeric State of the Serotonin1A Receptor utilizing Photobleaching Image Correlation Spectroscopy: Implications for Receptor Function. Faraday Discuss. 2018, 207: 409-421.
2017
33. Chakraborty H, and Chattopadhyay A. Sensing Tryptophan Microenvironment of Amyloid Protein Utilizing Wavelength-Selective Fluorescence Approach. J. Fluoresc. 2017; 27: 1995-2000.
34. Mishra S, Meher G, and Chakraborty H*. Conformational Transition of k-Casein in Micellar Environment: Insight from the Tryptophan Fluorescence. Spectrochim. Acta Mol. Biomol. Spectrosc. 2017; 186: 99-104.
35. Sarkar P, Chakraborty H, and Chattopadhyay A. Differential Membrane Dipolar Orientation Induced by Acute and Chronic Cholesterol Depletion. Sci. Rep. 2017, 7: 4484.
36. Meher G and Chakraborty H*. Organization and Dynamics of Trp14 of Hemagglutinin Fusion Peptide in Membrane Mimetic Environment. Chem. Phys. Lipids 2017; 205: 48-54.
37. Chakraborty H*, Lentz BR, Kombrabail M, Krishnamoorthy G, and Chattopadhyay A. Depth-dependent Membrane Ordering by Hemagglutinin Fusion Peptide Promotes Fusion. J. Phys. Chem. B 2017; 121: 1640-1648.
2016
38. Sethy D and Chakraborty H*. Micellar Dipolar Rearrangement is Sensitive to Hydrophobic Chain Length: Implication for structural switchover of Piroxicam. Chem. Phys. Lipids 2016; 200: 120-125.
39. Chaudhuri A, Prasanna X, Agiru P, Chakraborty H, Rydström A, Ho JCS, Svanborg C, Sengupta D., and Chattopadhyay A. Protein-dependent Membrane Interaction of A Partially Disordered Protein Complex with Oleic Acid: Implications for Cancer Lipidomics. Sci. Rep. 2016, 6: 35015.
40. Pal S, Chakraborty H, Bandari S, Yahioglu G, Suhling K, Chattopadhyay A. Molecular Rheology of Neuronal Membranes Explored using a Molecular Rotor: Implications for Receptor Function. Chem. Phys. Lipids 2016;196: 69-75.
2015
41. Chakraborty H*, Haldar S, Chong P, Kombrabail M, Krishnamoorthy G, and Chattopadhyay A. Depth-dependent Organization and Dynamics of Archaeal and Eukaryotic Membranes: Development of Membrane Anisotropy Gradient with Natural Evolution. Langmuir 2015; 31: 11591−11597.
42. Chakraborty H, and Chattopadhyay A. Excitements and Challenges in GPCR Oligomerization: Molecular Insight from FRET. ACS Chem. Neurosci. 2015; 6: 199-206.
43. Tarafdar PK, Chakraborty H, Bruno M, and Lentz BR. Phosphatidylserine-Dependent Catalysis of Stalk and Pore Formation by Synaptobrevin JMR-TMD Peptide. Biophys. J. 2015;109:1863-1872.
2014
44. Bandari S, Chakraborty H, Covey DF, and Chattopadhyay A. Membrane Dipole Potential is Sensitive to Cholesterol Stereospecificity: Implications for Receptor Function. Chem. Phys. Lipids 2014;184:25-29.
45. Chakraborty H, Sengupta T, and Lentz BR. pH Alters Fusion of Phosphatidylethanolamine-containing Vesicles. Biophys. J. 2014;107:1327-1338.
46. Sengupta T#, Chakraborty H#, and Lentz BR. The Transmembrane Domain Peptide of Vesicular Stomatitis Virus Promotes Both Intermediate and Pore Formation during PEG-mediate Vesicle Fusion. Biophys. J. 2014; 107:1318-1326. #Authors contributed equally
47. Kota P, Buchner G, Chakraborty H, Dang YL, He H, Garcia GJM, Kubelka J, Gentzsch M, Stutts, MJ, and Dokholyan NV. The N-terminal Domain Allosterically Regulates Cleavage and Activation of the Epithelial Sodium Channel. J. Biol. Chem. 2014; 289:23029 –23042.
2013
48. Chakraborty H, Tarafdar PK, Klapper D, and Lentz BR. Wild Type and Mutant Hemagglutinin Fusion Peptides Alter Bilayer Structure as well as Kinetics and Activation Thermodynamics of Stalk and Pore Formation Differently: Mechanistic Implications. Biophys. J. 2013; 105:2495-2506.
49. Chakraborty H, Tarafdar PK, and Lentz BR. A Novel Assay to Detect Fusion Pore Formation: Implication for Fusion Mechanism. Biochemistry 2013; 52:8510-8517.
2012
50. Chakraborty H, Tarafdar PK, Bruno MJ, Sengupta T, and Lentz BR. Activation Thermodynamics of PEG-mediated Model Membrane Fusion is Consistent with Mechanistic Models of Stalk and Pore Formation. Biophys. J. 2012; 102:2751-2760.
51. Tarafdar PK, Chakraborty H, Dennison SM, and Lentz BR. Phosphatidylserine Inhibits and Calcium Promotes Model Membrane Fusion. Biophys. J. 2012; 103:1880-1889.
52. Chakraborty H, and Lentz BR. A Simple Method for Correction of Circular Dichroism Spectra Obtained from Membrane-containing Samples. Biochemistry 2012; 51:1005-1108. (Highlighted in the Biochemistry Home Page)
2011
53. Haque ME#, Chakraborty H#, Koklic T, Komatsu H, Axelson PH, and Lentz BR. Hemagglutinin Fusion Peptide Mutants in Model Membranes: Structural Properties, Membrane Physical Properties and PEG-mediated Fusion. Biophys. J. 2011; 101:1095-1104. #Authors contributed equally
2009
54. Kundu S, Chakraborty H, Sarkar M, and Datta A. Interaction of Oxicam NSAIDs with Lipid Monolayer Anomalous Dependence on Drug Concentration. Colloids and Surfaces B: Biointerface 2009; 70:157-161.
2008
55. Chakraborty H, Mondal S, and Sarkar, M. Membrane Fusion: A New Function of Non Steroidal Anti-inflammatory Drugs. Biophys. Chem. 2008;137: 28-34. (Research Highlight in NATURE India).
56. Chakraborty H, Devi PG, Sarkar M, and Dasgupta D. Multiple Functions of Generic Drugs: Future Perspectives of Aureolic Acid Group of Anti-cancer Antibiotics and Non Steroidal Anti-inflammatory Drugs. Mini Rev. Med. Chem. 2008; 8:331-349.
2007
57. Chakraborty H, Chakraborty PK, Raha S, Mandal PC, and Sarkar M. Interaction of Piroxicam with Mitochondrial Membrane and Cytochrome c. Biochim. Biophys. Acta (Biomembranes) 2007; 1768:1138-1146.
58. Chakraborty H, and Sarkar M. Interaction of Piroxicam and Meloxicam with DMPG/DMPC Mixed Vesicles: Anomalous Partitioning Behavior. Biophys. Chem. 2007; 125:306-313.
2005
59. Chakraborty H, Roy S, and Sarkar M. Interaction of Oxicam NSAIDs with DMPC Vesicles: Differential Partitioning of Drugs. Chem. Phys. Lipids 2005; 138:20-28.
60. Chakraborty H, and Sarkar M. Effect of Counterion on the Structural Switchover and Binding of Piroxicam with Sodium Dodecyl Sulfate (SDS) Micelles. J. Colloid. Interface. Sci. 2005; 292:265-270.
61. Chakraborty H, and Sarkar M. Interaction of Piroxicam with Micelles: Effect of Hydrophobic Chain Length on Structural Switchover. Biophys. Chem. 2005; 117:79-85.
2004
62. Banerjee R, Chakraborty H, and Sarkar M. Host-Guest Complexation of Oxicam NSAIDs with b-cyclodextrin. Biopolymers 2004; 75:355-365.
63. Chakraborty H, and Sarkar M. Optical Spectroscopic and TEM Studies of Catanionic Micelles of CTAB/SDS and their Interaction with a NSAID. Langmuir 2004; 20:3551-3558.
2003
64. Chakraborty H, Banerjee R, and Sarkar M. Incorporation of NSAIDs in Micelles: Implication of Structural Switchover in Drug-Membrane Interaction. Biophys. Chem. 2003; 104:315-325.
65. Banerjee R, Charkaborty H, and Sarkar M. Photophysical Studies of Oxicam Group of NSAIDs: Piroxicam, Meloxicam and Tenoxicam. Spectrochim. Acta A Mol. Biomol. Spectrosc. 2003; 59:1213-1222.

NIL

1. Pattnaik GP, and Chakraborty H*. Fluorescence Anisotropy: Probing Rotational Dynamics of Biomolecules. (Invited Chapter) Optical Spectroscopic and Microscopic Techniques: Analysis of Biological Molecules, Springer 2022, First Edition.
2. Pattnaik GP and Chakraborty H*. Cholesterol: A Key Player in Membrane Fusion that Modulates the Efficacy of Fusion Inhibitor Peptides. (Invited Chapter) Hormones, Regulators and Viruses, Academic Press (Elsevier) 2021, 117: 133-155.
3. Meher G and Chakraborty H*. Oligomerization of Fusion Proteins: A Common Symptom for Class I Viruses. (Invited Chapter) Human Viruses: Diseases, Treatments and Vaccines, Springer, 2021, 693-712.
4. Chakraborty H, Devi PG, Sarkar M, Dasgupta D. New Functions of Old Drugs: Aureolic Acid Group of Anti-cancer Antibiotics and Non Steroidal Anti-inflammatory Drugs. Recent Advances in Medicinal Chemistry, Bentham Publishers, Volume-1, 2014, 3-55.

1. Organizing Secretary (National Conference on Recent Developments on Photochemistry and Photobiology, 2016)
2. Organizing Secretary (National Conference on Surfactants, Emulsions and Biocolloids, 2017)

1. Teacher-In-Charge (Exam Cell), School of Chemistry, SU (2016-2018)
2. Teacher-In-Charge (Exam Cell), School of Chemistry, SU (2020-2022)
3. Teacher-In-Charge (Time Table), School of Chemistry, SU (2019- till date)
4. Teacher-In-Charge (Placement), School of Chemistry, SU (2017-2022)
5. Assistant Coordinator, NAAC Committee, SU (2019- till date)
6. Data Entry Operator, RBI-Treasury Single Account, SU (2020-till date)
7. Member, IQAC, SU (2020-till date)
8. Member, AQAR Committee (2019-till date)
9. Member, NIRF Committee (2019-till date
10. Member, Board of Studies, Chemistry, SU (2021-2022)
11. PI, Centre of Excellence on ‘Natural Products and Therapeutics’ (World Bank Sponsored)
12. Co-PI, DBT-Builder Project

Present Address :  School of Chemistry Sambalpur University Jyoti Vihar, Burla, Odisha 768 019

Permanent Address :  Flat No. C-507 Balaji Greens, Ainthapali Sambalpur, Odisha 768 004