bajkul.college1964@gmail.com
03220-274291(P)/03220-274460(O)

Bajkul Milani Mahavidyalaya

 
Bajkul

Dr. Gerald Lepcha

Assistant Professor

Contact No. : +91-7001325905
E-mail ID : glepchachemistry@bajkulcollege.org
1QualificationB.Sc, M.Sc, CSIR-UGC NET JRF, GATE, Ph.D
2Area of SpecializationInorganic Chemistry
3.Research InterestSupramolecular chemistry, Metallogels, Gel-nanocomposites, Semiconductors, Non linear optics, crystalline systems, and biological properties of soft scaffolds
4Teaching Experience2 Years (from 22/11/2023 till now)
5Awards1. Hot article in Dalton Transactions 2022 [Dalton Trans., 2022, 51, 13435-13443], Royal Society of Chemistry.
 
2. Best Paper award in International Conference on Green Initiatives in Chemical Sciences for Sustainable Development (ICGICSSD-2022) organized by Sikkim Manipal Institute of Technology.
 
3. Best Poster award in the National Conference on “Chemistry for Sustainability” organized by the Department of Chemistry, University of North Bengal.
6Professional MembershipNil
7Publicationof Book(s)Nil
8Edited Book(s)Nil
9Research Paper Publications in Journal22 Research Articals in Peer Reviewed International Journals
iD. Saha, D. Talukdar, I. Pal, S. Majumdar, G. Lepcha, S. Sadhu, S. K. Yatirajula, G. Das and B. Dey, Mechanically Flexible Self-Healing Mg(II)-Metallogel: Approach of Triggering the ROS-Induced Apoptosis in Human Breast Cancer Cells, Langmuir 2024, 40, 19816-19829. https://doi.org/10.1021/acs.langmuir.4c02627
iiI. Pal, N. K. Pathak, S. Majumdar, G. Lepcha, A. Dey, S. K. Yatirajula, U. Tripathy, and B. Dey, Comparative Vision of Nonlinear Thermo-Optical Features and Third-Order Susceptibility of Mechanically Flexible Metallosupramolecular Self-Repairing Networks with Isomeric Organic Acids, Inorg. Chem. 2024, 63, 12003-12016. https://doi.org/10.1021/acs.inorgchem.4c00763
iiiT. Singha, B. Pal, S. Majumdar, G. Lepcha, I. Pal, P. P. Ray, B. Dey and P. K. Datta, Optical Nonlinearity of Semiconducting Cd(II) Metallogel in the Femtosecond Regime with Two-, Three-, and Four-Photon Absorption, ACS Appl. Opt. Mater., 2024, 2, 474-484. https://doi.org/10.1021/acsaom.4c00007
ivG. Lepcha, I. Pal, S. Majumdar, Y. Dhasmana, S. Mondal, E. Zangrando, D. Chopra, and B. Dey, Solvent and stoichiometry-dependent versatile organogelation and robust crystallization from the supramolecular association of adipic acid and triethanolamine, New J. Chem., 2024,48, 9322-9332. https://doi.org/10.1039/D4NJ00559G
vB. Pal, S. Majumdar, I. Pal, G. Lepcha, A. Dey, P. P. Ray, and B. Dey, Comparative outcomes of the voltage-dependent current density, charge transportation and rectification ratio of electronic devices fabricated using mechanically flexible supramolecular networks, Dalton Trans., 2024, 53, 7912-7921. https://doi.org/10.1039/D4DT00383G
viI. Pal, S. Majumdar, G. Lepcha, K. T. Ahmed, S. K. Yatirajula, S. Bhattacharya, R. Chakravarti, B. Bhattacharya, S. R. Biswas and B. Dey, Exploration of Variable Solvent Directed Self-Healable Supramolecular M(II)-Metallogels (M = Co, Ni, Zn) of Azelaic Acid: Investigating Temperature-Dependent Ion Conductivity and Antibacterial Efficiency, ACS Appl. Bio Mater., 2023, 6, 5442-5457. https://doi.org/10.1021/acsabm.3c00675
viiI. Pal, N. K. Pathak, S. Majumdar, G. Lepcha, A. Dey, S. K. Yatirajula, U. Tripathy and B. Dey, Solvent-Driven Variations of Third-Order Nonlinear Thermo-Optical Features of Glutaric Acid-Directed Self-Healing Supramolecular Ni(II) Metallogels, Langmuir, 2023, 39, 16584-16595. https://doi.org/10.1021/acs.langmuir.3c02572
viiiB. Pal, S. Majumdar, K. S. Das, G. Lepcha, I. Pal, P. P. Ray and B. Dey, Investigating charge transportation and photo-responsive outcome of a Schottky diode fabricated by 2-amino terephthalic acid directed supramolecular Mn(II)-metallogel, J. Phys. Chem. Solids, 2023, 182, 111612. https://doi.org/10.1016/j.jpcs.2023.111612
ixI. Pal, A. Biswas, S. Majumdar, G. Lepcha, B. Pal, P. P. Ray and B Dey, Unveiling the Semiconducting Diode Property through Current Density-Voltage Features with Effective Interface Mobility and Conductivity of Nitroterephthalic Acid-Directed Supramolecular Co(II)/Cu(II) Metallogels, ACS Appl. Eng. Mater., 2023, 1, 3005-3015. https://doi.org/10.1021/acsaenm.3c00481
xI. Pal, G. Lepcha, S. Majumdar and B. Dey, Chemo-responsiveness of aliphatic and aromatic amines on LMWG directed supramolecular metallogel: A morphological scrutiny of metallogel decomposition, J. Indian Chem. Soc., 2023, 100, 101084. https://doi.org/10.1016/j.jics.2023.101084
xiG. Lepcha, S. Majumdar, B. Pal, K. T. Ahmed, I. Pal, B. Satpati, S. R. Biswas, P. P. Ray and B. Dey, Suberic Acid-Based Supramolecular Metallogels of Ni(II), Zn(II), and Cd(II) for Anti-Pathogenic Activity and Semiconducting Diode Fabrication, Langmuir, 2023, 39, 7469-7483. https://doi.org/10.1021/acs.langmuir.3c00765
xiiS. Majumdar, A. Dey, A. Bandyopadhyay, G. Lepcha, R. K. Mondal, V. K. Gupta, P. P. Ray and B. Dey, Structural Engineering and Electronic Properties of Halide-Specific Supramolecular Architectures: Effective for Stabilizing H5O2+ and Fabricating Semiconducting Photoresponsive Diodes, J. Phys. Chem. C, 2023, 127, 3417-3431. https://doi.org/10.1021/acs.jpcc.2c07742
xiiiG. Lepcha, R. Sahu, S. Majumdar, S. Banerjee, A. Bhowmick, S. Sen, B. Panda, D. Dhak, K. Sarkar and B. Dey, MoS2 and MoSe2 2D nanosheets-based supramolecular nanostructure scaffold-capped Ag-NPs: exploring their morphological, anti-bacterial, and anticancer properties, New J. Chem., 2023, 47, 15357-15365. https://doi.org/10.1039/D3NJ00383C
xivS. Majumdar, D. Mukherjee, G. Lepcha, K. K. Saha, K. S. Das, I. Pal, N. C. Mandal and B. Dey, Itaconic and citraconic acid directed thixotropic and self-healable supramolecular metallogels of M(ii) (M = Co, Cu, Zn, and Cd) for the growth-inhibitory potency against human pathogenic microbes, New J. Chem., 2023, 47, 9643-9653. https://doi.org/10.1039/D3NJ00802A
xvG. Lepcha, B. Pal, S. Majumdar, K. T. Ahmed, I. Pal, S. R. Biswas, P. P. Ray and B. Dey, Ni(II) and Zn(II)-metallogel-based anti-bacterial scaffolds for fabricating light-responsive junction-type semiconducting diodes with non-ohmic conduction mechanism, Mater. Adv., 2023, 4, 2595-2603. https://doi.org/10.1039/D3MA00054K
xviS. Majumdar, B. Pal, G. Lepcha, K. S. Das, I. Pal, P. P. Ray and B. Dey, Establishment of different aliphatic amines-based rapid self-healing Mg(OH)2 metallogels: exploring the morphology, rheology and intriguing semiconducting Schottky diode characteristics, New J. Chem., 2023, 47, 4752-4760. https://doi.org/10.1039/D2NJ06029A
xviiS. Majumdar, A. Dey, R. Sahu, G. Lepcha, A. Dey, P. P. Ray and B. Dey, An aromatic acid based supramolecular Zn(II)-metallogel for fabricating light-sensitive metal-semiconductor junction type Schottky diode with satisfactory rectification ratios, Mater. Res. Bull., 2023, 157, 112003. https://doi.org/10.1016/j.materresbull.2022.112003
xviiiS. Majumdar, G. Lepcha, K. T. Ahmed, I. Pal, S. R. Biswas and B. Dey, Squaric acid driven supramolecular metallogels of Cd(II) and Zn(II): Sensitive inhibitors for multi-drug resistance ESKAPE pathogens, J. Mol. Liq., 2022, 368, 120619. https://doi.org/10.1016/j.molliq.2022.120619
xixS. Majumdar, G. Lepcha, R. Sahu and B. Dey, Exploring an aromatic dicarboxylic acid-grafted supramolecular Cd(II)-metallogel: The mechanically flexible stuff for achieving MoS2, MoSe2, WS2, GO, and h(BN) 2D nanosheets-dispersed versatile supramolecular gel-nano composites, J. Phys. Chem. Solids, 2022, 170, 110903. https://doi.org/10.1016/j.jpcs.2022.110903
xxG. Lepcha, T. Singha, S. Majumdar, A. K. Pradhan, K. S. Das, P. K. Datta and B. Dey, Adipic acid directed self-healable supramolecular metallogels of Co(II) and Ni(II): intriguing scaffolds for comparative optical-phenomenon in terms of third-order optical non-linearity, Dalton Trans., 2022, 51, 13435-13443. https://doi.org/10.1039/D2DT01983C
xxiA. Dey, S. Sil, S. Majumdar, R. Sahu, M. Ghosh, G. Lepcha, P. P. Ray and B. Dey, Exploring the studies of charge transportation of an aromatic acid based Co(II)-Metallogel scaffold fabricated Schottky device, J. Phys. Chem. Solids, 2022, 160, 110300. https://doi.org/10.1016/j.jpcs.2021.110300
xxiiS. Majumdar, S. Sil, R. Sahu, M. Ghosh, G. Lepcha, A. Dey, S. Mandal, P. P. Ray and B. Dey, Electronic charge transport phenomena directed smart fabrication of Metal-Semiconductor based electronic junction device by a supramolecular Mn(II)-Metallogel, J. Mol. Liq., 2021, 338, 116769. https://doi.org/10.1016/j.molliq.2021.116769
10Articles/Chapters Published in BooksNil
11Conference Publication04
Sl. No.Title of the Paper/Poster PresentedTitle of Conference/ SeminarOrganised byWhether International/National/State/Regional/ College or University level
1Adipic acid Directed Self-Healable Supramolecular Metallogels of Co(II) and Ni(II)“International Conference on Green Initiatives in Chemical Sciences for Sustainable Development (ICGICSSD-2022)”Sikkim Manipal Institute of TechnologyInternational
2Thixotropic metallogels and its biorelevant and electrical applicationsInternational Conference on Recent Trends in Chemical Sciences-2022″IIT(ISM) DhanbadInternational
3Suberic Acid-Based Supramolecular Metallogels of Ni(II), Zn(II), and Cd(II) for Anti-Pathogenic Activity and Semiconducting Diode FabricationInnovation, Expansion, Impacts and Challenges in Chemical and Biological Sciences (ICBS-2024)Department of Chemistry, surendranath college, 24/2 M.G. Road, Kolkata-700009International
4Ni(II) and Zn(II)-metallogel-based anti-bacterial scaffolds for fabricating light-responsive junction-type semiconducting diodes with non-ohmic conduction mechanismRecent Trends in Chemistry and related DisciplinesBurdwan UniversityNational
12Research ProjectsNil
13Special AchievementsNil
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