@tmv.ac.in
Assistant Professor, Dept. of Chemistry
Tamralipta Mahavidyalaya
Scopus Publications
Scholar Citations
Scholar h-index
Scholar i10-index
Dhrubajyoti Majumdar, Jessica Elizabeth Philip, Burak Tüzün, A. Frontera, Rosa M. Gomila, Sourav Roy, and Kalipada Bankura
Springer Science and Business Media LLC
Dhrubajyoti Majumdar, Burak Tüzün, Tapan Kumar Pal, Sourav Das, and Kalipada Bankura
Springer Science and Business Media LLC
Dhrubajyoti Majumdar, A. Frontera, Rosa M. Gomila, Sourav Das, and Kalipada Bankura
Royal Society of Chemistry (RSC)
We report σ-hole interaction/spodium/tetrel bonding and other non-covalent interactions in a heteronuclear Pb(ii)–Salen coordination polymer using DFT, HSA, QTAIM/NCI, and QTAIM/ELF plots. The non-covalent interactions predominantly drive the formation of extended architectures.
Dhrubajyoti Majumdar, Burak Tüzün, Tapan Kumar Pal, Reena V. Saini, Kalipada Bankura, and Dipankar Mishra
Elsevier BV
Dhrubajyoti Majumdar, Swapan Dey, Annu Kumari, Tapan Kumar Pal, Kalipada Bankura, and Dipankar Mishra
Elsevier BV
Dhrubajyoti Majumdar, Tapan Kumar Pal, Shahenur Alam Sakib, Sourav Das, Kalipada Bankura, and Dipankar Mishra
Elsevier BV
Dhrubajyoti Majumdar, Jessica Elizabeth Philip, Sourav Das, Bidyut Kumar Kundu, Reena V. Saini, Gourav Chandan, Kalipada Bankura, and Dipankar Mishra
Elsevier BV
Abstract Two new cadmium (II) complexes, viz., [Cd4(L1)2(ƞ1-NCS)2(µ2-ƞ2:ƞ1-OAc)2] (C1) and [Cd4(L2)2(µ1,1-N3)4]n (C2) (H2L1= N, N’-ethylene bis(3-methoxysalicylaldimine), H2L2= N, N’-ethylene bis(3-ethoxysalicylaldimine) were impeccably synthesized and structurally characterized using various sophisticated analytical techniques including SCXRD. X-ray diffraction confirmed complexes possess Cd4 structural motifs with two distinctive geometrical arrangements displayed around the central Cd (II) ion. Supramolecular architecture and multi-dimensional polymer formation reunited through the utilization of all anionic forms of ligands taken after by bridging bolster of pseudo-halide ions. Supramolecular interactions are more easily discernible through Hirshfeld surfaces and fingerprint plots. Herein, we demonstrated the potential role of the as-synthesized complexes towards the antimicrobial and anticancer activity. To address the issue, compounds are tested for antibacterial and antifungal activities against the bacteria Staphylococcus aureus (ATCC 25923), Bacillus subtilis (ATCC 6635), Pseudomonas aeruginosa (ATCC 27853), Escherichia coli (ATCC 25922), and fungal Candida albicans (ATCC 10231). The antimicrobial screening revealed that C1-C2 demonstrated higher action over ligands (L1-L2), thus, simply signifies the endowment of the compound's structural environment on these biological movements. Further, compounds anticancer activity was determined against A549 (Human lung carcinoma) and Panc-1 (Human pancreatic) lines using MTT assay. Molecular docking was performed to correlate the experimental binding results between complexes and the targeted proteins responsible for bacterial or cancerous features. Herewith, E. coli enzyme MurB (PDB ID: 2q85 ), B. subtilis SMC head domain (PDB ID: 5h67 ), cyclin-dependent kinase 2-associated protein 1 (PDB ID: 2kw6 ), and Epidermal Growth Factor Receptor (EGFR) tyrosine kinase domain (PDB ID: 1m17 ) have been selected to identify the true binding modes and docking poses, which are responsible for this superior biological activity. Subsequently, the current research puts in an exertion to crack a new Cd (II)-mediated complex as an antibacterial and anticancer drug which may demonstrate to be a moo fetched pharmaceutical.
Dhrubajyoti Majumdar, Dhiraj Das, Sudip Nag, Maitree Bhattacharyya, Dheeraj K. Singh, Debaprasad Parai, Kalipada Bankura, and Dipankar Mishra
Elsevier BV
Dhrubajyoti Majumdar, Tapan kumar pal, Dheeraj Kumar Singh, Deepak K. Pandey, Debaprasad Parai, Kalipada Bankura, and Dipankar Mishra
Elsevier BV
Dhrubajyoti Majumdar, Yashika Agrawal, Renjith Thomas, Zakir Ullah, Manas K. Santra, Sourav Das, Tapan K. Pal, Kalipada Bankura, and Dipankar Mishra
Wiley
Dhrubajyoti Majumdar, Dhiraj Das, S.S. Sreejith, Sudip Nag, Swapan Dey, Surajit Mondal, Kalipada Bankura, and Dipankar Mishra
Elsevier BV
Dhrubajyoti Majumdar, Sourav Das, Renjith Thomas, Zakir Ullah, S.S. Sreejith, Dhiraj Das, Pooja Shukla, Kalipada Bankura, and Dipankar Mishra
Elsevier BV
Dhrubajyoti Majumdar, Swapan Dey, Dhiraj Das, Dheeraj Kumar Singh, Sourav Das, Kalipada Bankura, and Dipankar Mishra
Elsevier BV
Dhrubajyoti Majumdar, Dhiraj Das, S.S. Sreejith, Sourav Das, Jayanta Kumar Biswas, Monojit Mondal, Debarati Ghosh, Kalipada Bankura, and Dipankar Mishra
Elsevier BV
Dhrubajyoti Majumdar, Swapan Dey, S.S. Sreejith, Jayanta Kumar Biswas, Monojit Mondal, Pooja Shukla, Sourav Das, Tapan Pal, Dhiraj Das, Kalipada Bankura,et al.
Elsevier BV
Dhrubajyoti Majumdar, Swapan Dey, Sreejith S. Sreekumar, Sourav Das, Dhiraj Das, Ramesh K. Metre, Kalipada Bankura, and Dipankar Mishra
Wiley
Dhrubajyoti Majumdar, Jayanta Kumar Biswas, Monojit Mondal, Manabolu Surya Surendra Babu, Sourav Das, Ramesh K. Metre, Sreejith S. SreeKumar, Kalipada Bankura, and Dipankar Mishra
Wiley
Dhrubajyoti Majumdar, Jayanta Kumar Biswas, Monojit Mondal, M.S. Surendra Babu, Ramesh K. Metre, Sourav Das, Kalipada Bankura, and Dipankar Mishra
Elsevier BV
U. Senapati, B. Mandal and K. Bankura
Rasayan Journal of Chemistry
A detailed study of Cu2+ion affinities of the amino acids namely Glycine (Gly), Alanine (Ala) and Cysteine (Cys) and their Cu2+complexes have been investigated using density functional theory. Interactions of a Cu2+ ion with oxygen, nitrogen, and sulfur (for cysteine) of the selected amino acids have been optimized. The results show that complex formation reactions are exothermic in both gas and aqueous phase and the neighboring stereochemical nature of Cu2+ion is more or less same in all amino acids. The computed Cu2+ affinity for both O-Cu2+ and N-Cu2+ interaction in the gas phase is in this order ∆ECys>∆EAla>∆EGly. In aqueous phase, Cu2+ion affinity for O-Cu2+ interaction follows the same order as above, whereas in N-Cu2+ interaction it differs as ∆EAla≥∆ECys>∆EGly. In NCu2+ interaction Zwitterterionic complexes (Cu2+ bind with both nitrogen and carbonyl oxygen atom) have been formed. The optimization energies are estimated to be lower relative to the other interactions and the Cu2+ ion affinities have been predicted more. The results have been well supported by the natural population analysis (NPA) of the atoms and hardness parameters. The charge, energetics, geometrical and electronic properties of the complexes signify that the interaction between the Cu2+ with the carbonyl oxygen and the amino nitrogen of free amino acids is predominantly a covalent interaction in the gas phase and which becomes more ionic in the aqueous phase.
Kalipada Bankura, Dipak Rana, Md. Masud Rahaman Mollick, Sutanuka Pattanayak, Biplab Bhowmick, Nayan Ranjan Saha, Indranil Roy, Tarapada Midya, Gadadhar Barman, and Dipankar Chattopadhyay
Elsevier BV
Kalipada Bankura, Dipanwita Maity, Md. Masud Rahaman Mollick, Dibyendu Mondal, Biplab Bhowmick, Indranil Roy, Tarapada Midya, Joy Sarkar, Dipak Rana, Krishnendu Acharya,et al.
Elsevier BV
Md. Masud Rahaman Mollick, Biplab Bhowmick, Dipanwita Maity, Dibyendu Mondal, Mrinal Kanti Bain, Kalipada Bankura, Joy Sarkar, Dipak Rana, Krishnendu Acharya, and Dipankar Chattopadhyay
SAGE Publications
ABSTRACT Silver nanoparticles were successfully synthesized from AgNO3 through a reliable, eco-friendly and simple green route using Paederia foetida L. leaf extract as a reducing cum stabilizing agent. UV-Visible Spectroscopy, dynamic light scattering, atomic force microscopy, transmission electron microscopy, and X-ray diffraction analysis were used for characterization of silver nanoparticles. The synthesized silver nanoparticles were spherical in shape with size range of 4–15 nm. The nanoparticles were face-centered cubic crystal structure. The adopted technique for silver nanoparticle synthesis is suitable for large-scale production. The as-prepared silver nanoparticles revealed excellent antibacterial activity against different gram classes of bacteria and would be a promising candidate for various pharmaceutical, biomedical, and environmental applications.
Dipanwita Maity, Md. Masud Rahaman Mollick, Dibyendu Mondal, Biplab Bhowmick, Mrinal Kanti Bain, Kalipada Bankura, Joy Sarkar, Krishnendu Acharya, and Dipankar Chattopadhyay
Elsevier BV
K.P. Bankura, D. Maity, M.M.R. Mollick, D. Mondal, B. Bhowmick, M.K. Bain, A. Chakraborty, J. Sarkar, K. Acharya, and D. Chattopadhyay
Elsevier BV