Chemistry, Physical and Theoretical Chemistry, Biochemistry
17
Scopus Publications
676
Scholar Citations
13
Scholar h-index
16
Scholar i10-index
Scopus Publications
Physicochemical contrivance for exploring host-guest inclusion complex of a significant green solvent with a cyclic oligosaccharide and its innovative application optimized by computational approach Subhajit Debnath, Modhusudan Mondal, Anuradha Sinha, Niloy Roy, Biswajit Ghosh, Kangkan Mallick, Biplab Rajbanshi, Debadrita Roy, Tanusree Ray, Shukdeb Sarkar, Joydeb Maji, Mahendra Nath Roy Zeitschrift Fur Physikalische Chemie, 2024 Our modern study is going to inspect new inclusion phenomena between the 1-butyl-2,3-dimethylimidazolium tetrafluoroborate [Bdmim]BF4 ionic liquid (IL) and the host α-Cyclodextrin (α-CD) by a 1:1 ratio and newly formed inclusion complex was further explored by the 1H-NMR, FT-IR, UV–vis spectroscopy, PXRD, DSC, and SEM analysis. Molecular docking was also performed to investigate the encapsulation of the inclusion complex in which orientation and it have been seen that the IL [Bdmim]BF4 enters into the α-CD cavity with a 1:1 ratio was further established with the help of Job’s plot. Furthermore, the antibacterial activity of [Bdmim]BF4 IL and its inclusion complex was verified against some Gram-positive and Gram-negative bacterial strains.
Investigation of Host-Guest Inclusion Complex of Mephenesin with α-Cyclodextrin for Innovative Application in Biological System Subhajit Debnath, Biswajit Ghosh, Modhusudan Mondal, Niloy Roy, Kangkan Mallick, Joydeb Maji, Sudip Sahana, Anuradha Sinha, Sangita Dey, Anoop Kumar, Mahendra Nath Roy ACS Omega, 2024 High Resolution Image Download MS PowerPoint Slide The goal of this study was to use coevaporation to look into how polyether compounds like mephenesin (MEP) can be encapsulated into the host molecule α-cyclodextrin’s nanohydrophobic cage. Fourier transform infrared spectroscopy (FT-IR) investigations, powder X-ray diffraction (PXRD), and 1 H NMR were among the spectroscopic techniques used to describe the inclusion complex. Additionally, Job’s plot has been utilized to illustrate how MEP is encapsulated with α-cyclodextrin (α-CD) at a 1:1 molar ratio. The thermal stability of MEP increased after encapsulation according to thermogravimetric analysis (TGA) and differential thermal analysis (DTA) experiments. Mephenesin fits into the cavity of α-cyclodextrin in a 1:1 ratio, as observed by molecular docking for the inclusion complex to find the most appropriate orientation. This observation is further supported by the Job plot. Furthermore, a comparison was carried out based on a cell viability study between the medication and its inclusion complex.
Exploration of Diverse Interactions of l-Methionine in Aqueous Ionic Liquid Solutions: Insights from Experimental and Theoretical Studies Sukdev Majumder, Anuradha Sinha, Debadrita Roy, Biswajit Ghosh, Narendra Nath Ghosh, Tanusree Ray, Vikas Kumar Dakua, Anupam Datta, Indu Bhusan Sarkar, Subhankar Choudhury, Ashim Roy, Nitish Roy, Mahendra Nath Roy ACS Omega, 2023 Here, we have investigated some physicochemical parameters to understand the molecular interactions by means of density (ρ) measurement, measurement of viscosity (η), refractive index(nD) measurement, and conductance and surface tension measurements between two significant aqueous ionic liquid solutions: benzyl trimethyl ammonium chloride (BTMAC) and benzyl triethyl ammonium chloride (BTEAC) in an aqueous l-methionine (amino acid) solution. The apparent molar volume (Φv), coefficient of viscosity (B), and molar refraction (RM) have been used to analyze the molecular interaction behavior associated in the solution at various concentrations and various temperatures. With the help of some important equations such as the Masson equation, the Jones–Doles equation, and the Lorentz–Lorenz equation, very significant parameters, namely, limiting apparent molar volumes (Φv0), coefficient of viscosity (B), and limiting molar refraction (RM0), respectively, are obtained. These parameters along with specific conductance (κ) and surface tension (σ) are very much helpful to reveal the solute–solvent interactions by varying the concentration of solute molecules and temperature in the solution. Analyses of Δμ10#, Δμ20#, TΔS20#, ΔH20#, and thermodynamic data provide us valuable information about the interactions. We note that l-Met in 0.005 molality BTEAC ionic liquid at 308.15 K shows maximum solute–solvent interaction, while l-Met in 0.001 molality BTMAC aqueous solution of ionic liquid at 298.15 K shows the minimum one. Spectroscopic techniques such as Fourier transform infrared (FTIR), 1H-NMR, and UV–vis also provide supportive information about the interactions between the ionic liquid and l-methionine in aqueous medium. Furthermore, adsorption energy, reduced density gradient (RDG), and molecular electrostatic potential (MESP) maps obtained by the application of density functional theory (DFT) have been used to determine the type of interactions, which are concordant with the experimental observations.
Conductance and FTIR spectroscopic study of sodium tetraphenylborate in pure 1,3-dioxolane and isoamyl alcohol and their binary mixtures Anuradha Sinha, Gargi Ghosh, Mahendra Nath Roy Physics and Chemistry of Liquids, 2010 Systems of 1,3-dioxolane and isoamyl alcohol complexed with sodium tetraphenylborate (NaBPh4) are examined using electrical conductance measurements and FTIR spectroscopy at 298.15 K. The conductance data has been analysed by the Fuoss conductance–concentration equation in terms of the limiting molar conductance (Λ0), the association constant (K A) and the distance of closest approach of ions (R). The observed molar conductivities were explained by the formation of ion-pairs (M+ + X− ↔ MX). Cation–anion interactions along with the hydrogen bonding interactions are investigated by evaluating the frequency shifts of the solvents in the pure state as well as their binary mixtures upon complexation with the salt.
Ion-Solvent interactions in acrylonitrile solutions of some tetraalkylammonium halides using FTIR spectroscopy Anuradha Sinha, Arijit Bhattacharjee, Mahendra Nath Roy Journal of Dispersion Science and Technology, 2009 The FTIR spectra of tetrapentylammonium bromide (Pe4NBr), tetrapentylammonium iodide (Pe4NI), tetrahexylammonium bromide (He4NBr), tetrahexylammonium iodide (He4NI), tetraheptylammonium bromide (Hp4NBr), and tetraheptylammonium iodide (Hp4NI) in pure acrylonitrile were observed at 0.1(M), 0.08(M), 0.05(M), and 0.02(M) concentrations. The region of immobilized solvent resulting from the structure-making effects of electrostriction increases with increase in charge-surface ratio of the ions. Cation-anion interactions are thus investigated by evaluating the frequency shifts of the solvent in the pure state upon complexation with the salt.
Conductivity studies of sodium iodide in pure tetrahydrofuran and aqueous mixture of tetrahydrofuran and 1,4-dioxane at 298.15 k Anuradha Sinha, Mahendra Nath Roy Physics and Chemistry of Liquids, 2007 Electrical conductance measurements are reported for sodium iodide (NaI) in water + tetrahydrofuran (THF) and water + 1,4-dioxane binary mixtures at 298.15 K. The conductance data have been analyzed by the Fuoss conductance–concentration equation in terms of the limiting molar conductance (Λ 0), the association constant (K A) and the distance of closest approach of ions (R). Furthermore, the conductance data for pure THF have also been analyzed by the Fuoss–Kraus theory and the values of the ion-pair and triple-ion formation constants are calculated.
Densities, viscosities, and sound speeds of some acetate salts in binary mixtures of tetrahydrofuran and methanol at (303.15, 313.15, and 323.15) K Anuradha Sinha, Mahendra N. Roy Journal of Chemical and Engineering Data, 2006 The densities and viscosities of ammonium acetate, potassium acetate, sodium acetate, and lithium acetate have been measured in 10, 20, and 30 mass % of tetrahydrofuran + methanol binary solvent mixtures at (303.15, 313.15, and 323.15) K. Apparent molar volumes (Vφ), partial molar expansibility (E2), viscosity B-coefficients, and free energy of activation for viscous flow (Δμ0*) are obtained from these data. The limiting apparent molar volumes (Vφ0) and experimental slopes ( ) derived from the Masson equation have been interpreted in terms of ion−solvent and ion−ion interactions, respectively. The viscosity data have been analyzed using the Jones−Dole equation, and the derived parameters B and A have also been interpreted in terms of ion−solvent and ion−ion interactions. The sound speeds measured at 303.15 K have been used to study the apparent molal isentropic compressibility (KS,φ), intermolecular free length (Lf), relative association (RA), relaxation strength (r‘), and specific acoustic impedance (Z) ...
Electrical conductances of some ammonium and tetraalkylammonium halides in aqueous binary mixtures of 1,4-dioxane at 298.15 K Pakistan Journal of Scientific and Industrial Research, 2006
Ion-solvent and ion-ion interactions of some tetraalkylammonium, alkali metals and ammonium halides in isoamyl alcohol at 298.15 K by conductometric technique Journal of the Indian Chemical Society, 2006
Investigation on viscous antagonism of ternary liquid mixtures and its relation to concentration Journal of the Indian Chemical Society, 2005
RECENT SCHOLAR PUBLICATIONS
Investigation of host–guest inclusion complex of mephenesin with α-cyclodextrin for innovative application in biological system S Debnath, B Ghosh, M Mondal, N Roy, K Mallick, J Maji, S Sahana, ... ACS omega 9 (34), 36066-36075 , 2024 2024 Citations: 4
Physicochemical contrivance for exploring host-guest inclusion complex of a significant green solvent with a cyclic oligosaccharide and its innovative application optimized by … S Debnath, M Mondal, A Sinha, N Roy, B Ghosh, K Mallick, B Rajbanshi, ... Zeitschrift für Physikalische Chemie 238 (4), 643-659 , 2024 2024
Exploration of Diverse Interactions of l -Methionine in Aqueous Ionic Liquid Solutions: Insights from Experimental and Theoretical Studies S Majumder, A Sinha, D Roy, B Ghosh, NN Ghosh, T Ray, VK Dakua, ... ACS omega 8 (13), 12098-12123 , 2023 2023 Citations: 13
Antibiotic resistance genes in the gut microbiota of mothers and linked neonates with or without sepsis from low-and middle-income countries MJ Carvalho, K Sands, K Thomson, E Portal, J Mathias, R Milton, ... Nature microbiology 7 (9), 1337-1347 , 2022 2022 Citations: 97
Molecular interactions of some bioactive molecules prevalent in aqueous ionic liquid solutions at different temperatures investigated by experimental and computational contrivance B Ghosh, A Sinha, N Roy, B Rajbanshi, M Mondal, D Roy, A Das, ... Fluid Phase Equilibria 557, 113415 , 2022 2022 Citations: 17
Physico-chemical studies of vitamin-C in aqueous 2-propanol: Manifestation of molecular interactions MN Roy, K Sarkar, A Sinha Journal of Solution Chemistry 43 (12), 2212-2223 , 2014 2014 Citations: 11
Initiation mode of explosives vis-a-vis blast performance. PK Singh, MP Roy, A Sinha Journal of Mines, Metals & Fuels 62 , 2014 2014 Citations: 3
Causes of toe formation at dragline bench and its remedial measures PK Singh, MP Roy, A Sinha, B Singh, VK Singh Rock Fragmentation by Blasting: The 10th International Symposium on Rock … , 2013 2013 Citations: 5
Conductance and FTIR spectroscopic study of sodium tetraphenylborate in pure 1, 3-dioxolane and isoamyl alcohol and their binary mixtures A Sinha, G Ghosh, MN Roy Physics and Chemistry of Liquids 48 (1), 62-78 , 2010 2010 Citations: 13
Ion-solvent interactions in acrylonitrile solutions of some tetraalkylammonium halides using FTIR spectroscopy A Sinha, A Bhattacharjee, MN Roy Journal of dispersion science and technology 30 (7), 1003-1007 , 2009 2009 Citations: 18
An ICMR task force study of Prevention of Parent to Child Transmission (PPTCT) service delivery in India A Sinha, M Roy Indian journal of public health 52 (4), 200-202 , 2008 2008 Citations: 18
Ion-pair and triple-ion studies of some tetraalkylammonium halides in pure 1, 3-dioxolane at 298.15 K A Sinha, MN Roy Journal of Molecular Liquids 140 (1-3), 39-44 , 2008 2008 Citations: 11
Conductivity studies of sodium iodide in pure tetrahydrofuran and aqueous binary mixtures of tetrahydrofuran and 1, 4-dioxane at 298.15 K A Sinha, MN Roy Physics and Chemistry of Liquids 45 (1), 67-77 , 2007 2007 Citations: 31
Densities, viscosities, and sound speeds of some acetate salts in binary mixtures of tetrahydrofuran and methanol at (303.15, 313.15, and 323.15) K A Sinha, MN Roy Journal of Chemical & Engineering Data 51 (4), 1415-1423 , 2006 2006 Citations: 40
Electrical conductances of some ammonium and tetraalkylammonium halides in aqueous binary mixtures of 1, 4-dioxane at 298.15 K M Nath, B Sinha, VK Dakua, A Sinha Biological Sciences-PJSIR 49 (3), 153-159 , 2006 2006 Citations: 41
Studies of viscous antagonism, excess molar volume and isentropic compressibility in aqueous mixed solvent systems at different temperatures A Sinha, MN Roy Physics and Chemistry of Liquids 44 (03), 303-314 , 2006 2006 Citations: 41
Viscous synergy and antagonism and isentropic compressibility of ternary mixtures containing 1, 3-dioxolane, water and monoalkanols at 303.15 K MN Roy, A Sinha Fluid phase equilibria 243 (1-2), 133-141 , 2006 2006 Citations: 42
Physical Sciences IH Asghari Maqsood, K Kamran, MN Roy, B Sinha, VK Dakua, A Sinha, ... Pakistan Journal of Scientific and Industrial Research 49 (3) , 2006 2006
Ion-solvent and ion-ion interactions of some tetraalkylammonium, alkali metals and ammonium halides in isoamyl alcohol at 298.15 K by conductometric technique MN Roy, A SINHA Journal of the Indian Chemical Society 83 (2), 160-164 , 2006 2006 Citations: 3
Investigation on viscous synergy and antagonism of some liquid mixtures and ion-solvent interaction of some compounds in various solvent systems A Sinha University of North Bengal , 2006 2006
MOST CITED SCHOLAR PUBLICATIONS
Excess molar volumes, viscosity deviations and isentropic compressibility of binary mixtures containing 1, 3-dioxolane and monoalcohols at 303.15 K MN Roy, A Sinha, B Sinha Journal of solution chemistry 34 (11), 1311-1325 , 2005 2005 Citations: 147
Antibiotic resistance genes in the gut microbiota of mothers and linked neonates with or without sepsis from low-and middle-income countries MJ Carvalho, K Sands, K Thomson, E Portal, J Mathias, R Milton, ... Nature microbiology 7 (9), 1337-1347 , 2022 2022 Citations: 97
Solute–solvent and solute–solute interactions of resorcinol in mixed 1, 4-dioxane–water systems at different temperatures MN Roy, B Sinha, R Dey, A Sinha International Journal of Thermophysics 26 (5), 1549-1563 , 2005 2005 Citations: 88
Viscous synergy and antagonism and isentropic compressibility of ternary mixtures containing 1, 3-dioxolane, water and monoalkanols at 303.15 K MN Roy, A Sinha Fluid phase equilibria 243 (1-2), 133-141 , 2006 2006 Citations: 42
Electrical conductances of some ammonium and tetraalkylammonium halides in aqueous binary mixtures of 1, 4-dioxane at 298.15 K M Nath, B Sinha, VK Dakua, A Sinha Biological Sciences-PJSIR 49 (3), 153-159 , 2006 2006 Citations: 41
Studies of viscous antagonism, excess molar volume and isentropic compressibility in aqueous mixed solvent systems at different temperatures A Sinha, MN Roy Physics and Chemistry of Liquids 44 (03), 303-314 , 2006 2006 Citations: 41
Densities, viscosities, and sound speeds of some acetate salts in binary mixtures of tetrahydrofuran and methanol at (303.15, 313.15, and 323.15) K A Sinha, MN Roy Journal of Chemical & Engineering Data 51 (4), 1415-1423 , 2006 2006 Citations: 40
Conductivity studies of sodium iodide in pure tetrahydrofuran and aqueous binary mixtures of tetrahydrofuran and 1, 4-dioxane at 298.15 K A Sinha, MN Roy Physics and Chemistry of Liquids 45 (1), 67-77 , 2007 2007 Citations: 31
Outbreak of epizootic ulcerative syndrome (EUS) of fish in India D Kumar, RK Dey, A Sinha Aquaculture Productivity, 345-356 , 1991 1991 Citations: 27
Ion-solvent interactions in acrylonitrile solutions of some tetraalkylammonium halides using FTIR spectroscopy A Sinha, A Bhattacharjee, MN Roy Journal of dispersion science and technology 30 (7), 1003-1007 , 2009 2009 Citations: 18
An ICMR task force study of Prevention of Parent to Child Transmission (PPTCT) service delivery in India A Sinha, M Roy Indian journal of public health 52 (4), 200-202 , 2008 2008 Citations: 18
Molecular interactions of some bioactive molecules prevalent in aqueous ionic liquid solutions at different temperatures investigated by experimental and computational contrivance B Ghosh, A Sinha, N Roy, B Rajbanshi, M Mondal, D Roy, A Das, ... Fluid Phase Equilibria 557, 113415 , 2022 2022 Citations: 17
Exploration of Diverse Interactions of l -Methionine in Aqueous Ionic Liquid Solutions: Insights from Experimental and Theoretical Studies S Majumder, A Sinha, D Roy, B Ghosh, NN Ghosh, T Ray, VK Dakua, ... ACS omega 8 (13), 12098-12123 , 2023 2023 Citations: 13
Conductance and FTIR spectroscopic study of sodium tetraphenylborate in pure 1, 3-dioxolane and isoamyl alcohol and their binary mixtures A Sinha, G Ghosh, MN Roy Physics and Chemistry of Liquids 48 (1), 62-78 , 2010 2010 Citations: 13
Physico-chemical studies of vitamin-C in aqueous 2-propanol: Manifestation of molecular interactions MN Roy, K Sarkar, A Sinha Journal of Solution Chemistry 43 (12), 2212-2223 , 2014 2014 Citations: 11
Ion-pair and triple-ion studies of some tetraalkylammonium halides in pure 1, 3-dioxolane at 298.15 K A Sinha, MN Roy Journal of Molecular Liquids 140 (1-3), 39-44 , 2008 2008 Citations: 11
Investigation on viscous antagonism of ternary liquid mixtures and its relation to concentration B Sinha, A Sinha, A Jha, MN Roy JOURNAL-INDIAN CHEMICAL SOCIETY 82 (9), 814 , 2005 2005 Citations: 6
Causes of toe formation at dragline bench and its remedial measures PK Singh, MP Roy, A Sinha, B Singh, VK Singh Rock Fragmentation by Blasting: The 10th International Symposium on Rock … , 2013 2013 Citations: 5
Investigation of host–guest inclusion complex of mephenesin with α-cyclodextrin for innovative application in biological system S Debnath, B Ghosh, M Mondal, N Roy, K Mallick, J Maji, S Sahana, ... ACS omega 9 (34), 36066-36075 , 2024 2024 Citations: 4
Initiation mode of explosives vis-a-vis blast performance. PK Singh, MP Roy, A Sinha Journal of Mines, Metals & Fuels 62 , 2014 2014 Citations: 3
