Synthesis of novel organic molecules for biological applications.
Designing and setting up jet cooled setup in combination different types of laser instruments for measuring photo physical properties of molecules in gas phase.
Photophysical study of different types of fluorophore molecules in different biologically relevant environments.
Theoretical investigation of excited state phenomenon that is observed in the experimental studies.
Experience
Research Associate: National Institute of Science Education and research, Bhubaneswar, Odisha, India, December 2021-September 2022.
Supervisor: Dr. Himansu Shekar Biswal.
Postdoctoral Research Associate: S N Bose National Centre for Basic Sciences, India, May 2023-September 2023.
Supervisor: Dr. Rajib Kumar Mitra
Assistant Professor (Temporary): Department of Chemistry, National Institute of Technology, Sikkim, Ravangla, South Sikkim, September 2023- Continue.
Guset Teacher: Department of Chemistry, Acharya Prafulla Chandra College, New Barrakpore, West Bengal, May 2021-April 2023.
Teachings
CY22202: PHYSICAL CHEMISTRY LABORATORY
CY22105: GROUP THEORY AND MOLECULAR SPECTROSCOPY
CY23104: SPECTROSCOPIC METHODS OF ANALYSIS
Education
Ph.D. (University of Calcutta),2021
M.Sc. (University of Calcutta), 2013
B.Sc. (University of Calcutta), 2011
Contact Address :
Department of Chemistry
NIT Sikkim
Barfung Block
Ravangla
South Sikkim. PIN-737139
Publications
S. C. Makhal, A. Bhattacharyya, S. Ghosh, N. Guchhait, A spectroscopic exploration of the influence of charge donor group on ESIPT process and its consequences in a salicylimine. J. Photochem. Photobiol. A, 358(2018) 138-146.
S. C. Makhal, A. Bhattacharyya, S. Ghosh, N.Guchhait, Influence of acceptor strength on photoinduced charge transfer process in a newly designed molecule in bulk solvent and in ?-CD microenvironment. J. Photochem. Photobiol. A, 365(2018) 67-76.
S. C. Makhal, A. Bhattacharyya, N. Guchhait, Thiolactim-Thiolactam photoisomerization: Sulfur as proton donor for excited state proton transfer process. Chem. Phys. Lett., 717 (2019) 112-118.
A. Bhattacharyya, S. Ghosh, S. C. Makhal, N. Guchhait, Hydrazine bridged coumarin-pyrimidine conjugate as a highly selective and sensitive Zn2+ sensor: Spectroscopic unraveling of sensing mechanism with practical application. Spectrochim. Acta Part A, 183(2017) 306-311 IF = 3.232.
A. Bhattacharyya, S. Ghosh, S. C. Makhal, N. Guchhait, Harnessing a pyrimidine based molecular switch to construct reversible test strips for F?/AcO? with respect to Al3+: A colorimetric approach. Spectrochim. Acta Part A, 179 (2017) 242-249 IF = 3.232.
A. Bhattacharyya, S. Ghosh, S. C. Makhal, N. Guchhait, Employing a hydrazine linked asymmetric double naphthalene hybrid for efficient naked eye detection of F-: Crystal structure with real application for F.Spectrochim. Acta Part A, 198 (2018) 107-114.
A. Bhattacharyya, S. C. Makhal, S. Ghosh, A. A. Masum, N. Guchhait, Competition-free fluorogenic detection of Al3+ by a chromone-naphthalene conjugate: a spectroscopic exploration supported by DFT calculations with cell imaging. ChemistrySelect, 2 (2017) 9924-29
A. Bhattacharyya, S. Ghosh, S. C. Makhal, N. Guchhait, Hydrazine appended self-assembled benzoin-naphthalene conjugate as an efficient dual channel probe for Cu2+ and F-: a spectroscopic investigation with live cell imaging for Cu2+ and practical performance for fluoride J. Photochem. Photobiol. A, 353 (2018) 488-98
A. Bhattacharyya, S. C. Makhal, S. Ghosh, N. Guchhait, Enhanced charge transfer aptitude resulting in remarkable chromogenic F- sensing in a Naphthalene-Benzocaine Platform by simple atomic substitution: Azo Dye vs. Schiff base. ChemistrySelect, 3(2018) 3258-3264
A. Bhattacharyya, S.C. Makhal, A. Ganguly, N. Guchhait, instilling exploitable INHIBIT logic gate response for F-/H+ in 'end-off' anthracene-diamine hybrid by simple functional group manipulation: experimental study aided by DFT calculations. Chem. Phys. Lett., 696(2018) 106-111.
A. Bhattacharyya, S.C. Makhal, N. Guchhait, Reinvestigating photophysics of 7-diethylamino 3-cyanocoumarin as a polarity sensitive fluorescent probe: a spectroscopic approach. ISRAPS bulletin (invited article), 30(1-2) (2018) 29-35
A. Bhattacharyya, S.C. Makhal, N. Guchhait, CHEF-Affected Fluorogenic Nanomolar Detection of Al3+ by an Anthranilic Acid-Naphthalene Hybrid: Cell Imaging and Crystal Structure. ACS Omega, 3(2018) 11838-11846
A. Bhattacharyya, S.C. Makhal, N. Guchhait, Photophysical properties of azine linked pyrene-cinnamaldehyde hybrid: Evidence of solvent dependent charge transfer coupled excimer emission. ACS Omega, 4(2019) 2178-2187
A. Bhattacharyya, S.C. Makhal, N. Guchhait, Fate of protected HBT based chemodosimeters after undergoing deprotection: Restoration of ESIPT or generation of emissive phenoxide? Chem. Phys., 520 (2019) 61-69
A. Bhattacharyya, S. C. Makhal, N. Guchhait, ISRAPS bulletin (invited article), Developing a dual channel receptor for Cu2+ and F- by structural modification: a comparative review.30(4) (2018) 27-33
A. Bhattacharyya, S. C. Makhal, N. Guchhait, Comparative Photophysical Study of Differently Substituted Cinnamaldehyde-Based Chalcones: From Intramolecular Charge Transfer to Fluorogenic Solvent Selectivity. J. Phys. Chem. A, 123 (2019) 6411-6419
A. Bhattacharyya, S. C. Makhal, N. Guchhait, Mimicking cyclohexane chair form via H-bonding in crystal structure of a dihydroxy coumarin derivative: Efficient ratiometric response of F? over AcO?. J. Mol. Structure, 1196 (2019) 222-230
A. Bhattacharyya, S. C. Makhal, N. Guchhait, Evaluating the merit of a diethylamino coumarin-derived thiosemicarbazone as an intramolecular charge transfer probe: efficient Zn (II) mediated green to yellow emission swing. Photochem. Photobiol. Sci, 18 (2019) 2031-2041
A. Bhattacharyya, S. C. Makhal, S.K. Mandal, N. Guchhait, Exploring the hidden potential of methoxy substituted HBT derivative as an efficient example of coupling of AIE and ESIPT process and as an energy harvesting platform. New J. Chem., 43 (2019) 15087-15096
A. Bhattacharyya, S. C. Makhal, N. Guchhait, Simple Chloro Substituted HBT derivative Portraying Coupling of AIE and ESIPT Phenomenon: Ratiometric Detection of S2- and CN- in 100% Aqueous Medium, J. Photochem. Photobiol. A, 388(2020) 112177.
subhash@nitsikkim.ac.in 
+91 7003499741 / +91 8017657340