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Determination of the dose(Analytica chimica acta)
(Min Jung Kim, Sukdeb Pal, Yu Kyung Tak, Kyeong-Hee Lee, Tae Keun Yang, Su-Jae Lee, Joon Myong Song,Vol(593),Issue(2),Pages(214-223),,,Year : 2007)
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In this study the dose?depth distribution pattern of proton beams was investigated by inactivation of human cells exposed to high-LET (linear energy transfer) protons. The proton beams accelerated up to 45 MeV were horizontally extracted from the cyclotron, and were delivered to the cells acutely through a home made prototype over a range of physical depths (in the form of a variable water column). The biological systems used here were two in vitro cell lines, including human embryonic kidney cells (HEK 293), and human breast adenocarcinoma cell line (MCF-7). Cells were exposed to unmodulated proton beam radiation at a dose of 50 Gy similar to that used in therapy. Resazurin metabolism assay was investigated for measurement of cell response to irradiation as a simple and non-destructive assay.
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Does the Antibacterial Activity of Silver Nanoparticles Depend on the Shape of the Nanoparticle? A Study of the Gram-Negative Bacterium Escherichia coli(Applied and environmental microbiology)
(Sukdeb Pal, Yu Kyung Tak, Joon Myong Song,Vol(73),Issue(6),Pages(1712-1720),,,Year : 2007)
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In this work we investigated the antibacterial properties of differently shaped silver nanoparticles against the gram-negative bacterium Escherichia coli, both in liquid systems and on agar plates. Energy-filtering transmission electron microscopy images revealed considerable changes in the cell membranes upon treatment, resulting in cell death. Truncated triangular silver nanoplates with a {111} lattice plane as the basal plane displayed the strongest biocidal action, compared with spherical and rod-shaped nanoparticles and with Ag+ (in the form of AgNO3). It is proposed that nanoscale size and the presence of a {111} plane combine to promote this biocidal property.
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RETRACTED: Adsorption of cyanuric acid on activated carbon from aqueous solution: Effect of carbon surface modification and thermodynamic characteristics(Journal of colloid and interface science)
(Sukdeb Pal, Kyeong-Hee Lee, Jong-Uk Kim, Seung-Hee Han, Joon Myong Song,Vol(303),Issue(1),Pages(39-48),,,Year : 2007)
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The performance of a conventional and two surface-modified activated carbon samples was investigated for the sorption of cyanuric acid from aqueous solution by varying the process parameters such as initial concentration, pH, temperature, dose of adsorbents, and agitation time. The modified carbon samples obtained by acid and ammonia treatment of the conventional sample had a higher BET surface area (989 and 1010 m2?g?1, respectively) and higher specific mesopore surface area (27.36 and 33.21 m2?g?1, respectively) compared to the untreated material (820 and 18.25 m2?g?1). The solute removal was found to be favored at lower solute concentration, increased agitation time, increased adsorbent dose, and lower temperature. The modified adsorbents outperformed the conventional activated carbon for sorption of cyanuric acid especially at higher pH (>7.5) and with increasing temperature.
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Removal of E. coli from Water Using Surface-Modified Activated Carbon Filter Media and Its Performance over an Extended Use(Environmental science & technology)
(Sukdeb Pal, J Joardar, Joon Myong Song,Vol(40),Issue(19),Pages(6091-6097),,,Year : 2006)
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Modification of activated carbon (AC) by aluminum hydroxychloride (AHC), and diatomaceous earth by zinc hydroxide changed the zeta potentials of these filter media from negative to positive. The modification method is amenable to room temperature, and eliminates the essential requirement of strong base treatment for making metal hydroxide coated filter media. Solid-state MAS 27Al NMR spectra suggested the presence of Al13-mer in the AHC-treated AC. AHC-modified AC samples were further treated with silver halide, and two antibacterial compounds to prevent microbial growth on filter media. In situ precipitation of silver bromide on AC resulted in formation of nanosized AgBr crystals. Bacteria removal performances of the modified media were tested in columns.
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Kyeong-Hee lee, Jong-Uk Kim, et al. Adsorption of cyanuric acid on activated carbon from aqueous solution: Effect of carbon surface modification and thermodynamic characteristics(Journal of colloid and interface science)
(Sukdeb Pal
,,,,Year : 2006)
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No information is available
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Oxovanadium (IV, V) complexes of salicylidene-2-picoloyl hydrazone Schiff base and related ligands(Journal of the Indian Chemical Society)
(Asit R SARKAR, Shipra MANDAL, Sukdeb PAL, Somnath CHAKRABARTY, Aniruddha CHAKRABARTY,Vol(83),Issue(2),Pages(185-190),,,Year : 2006)
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Oxovanadium (iv, v) complexes having O 4 N coordination environment have been synthesized in the solid state, formulated as M [VO 2 (L/L',/L")(H 2 O)], where M= K or NH 4; H 2 (L/L'/L") is the Schiff base ligand, obtained by condensation of salicylaldehyde with 2-picoloyl (L), 2-quinoloyl (L'), 8-quinoloyl (L") hydrazides. Dimeric complexes having the formulation [(VOL) 2 ?-O] have also been synthesized. Both the salicylidene-picoloyl hydrazone and the salicylidene-2-quinoloyl hydrazone ligands, in their dideprotonated form, coordinate to both vanadium in its+ 4 and+ 5 slate, through 0, N, O donor atoms, while, the ligand H 2 L" will act as a NNO donor ligand. Thus, in the dioxo vanadium complexes with the ligands L and L', the central vanadium core will have the O 4 N environment, which can be treated as a model to mimic the active site of vanadium haloperoxidases.
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Single Nucleotide Polymorphism (SNP) Detection In Microfluidic Device Using Poly (NIsopropyDAcrylamide As Pseudostationary Phase
(PAL Sukdeb, SONG Joon Myong,Pages(489-489),,,Year : 2005)
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Akt-G SK 3p pathway underlies the cardioprotective effect of KR-32568, a novel sodium/hydrogen exchange r-1 inhibitor, in an isolated rat heart m odel of ischem iaand reperfusion heartinjury
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Single pathogenic bacteria detection using a compact CMOS biochip system
(PARK Ahyun, PAL Sukdeb, SONG Joon Myong,Pages(477-477),,,Year : 2005)
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No information is available
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A model study for vanadium protein interactions: synthesis, characterization of oxovanadium (IV and V) complexes with l-carnosine(SYNTHESIS AND REACTIVITY IN INORGANIC METAL-ORGANIC AND NANO-METAL CHEMISTRY)
(AR Sarkar, S Mandal, S Pal, S Chakrabarty, A Chakrabarty,Vol(35),Issue(2),Pages(127-132),,,Year : 2005)
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The potential metal binding sites of L-carnosine (beta-alanyl-L-histidine) with respect to vanadium has been investigated. Two novel oxovanadium complexes containing the dideprotonated L-carnosine anion were isolated having the composition NH4[VO2L] center dot 2H(2)O and [VOL] center dot 2H(2)O, where H2L = L-carnosine. The dideprotonated L-carnosine coordinates to vanadium in both the complexes through the three donor atoms, namely the oxygen atom of the carboxylate group and two nitrogen ( one each from the primary amine and the other from the amide group of the ligand). The imidazole moiety of L-carnosine undergoes a tautomeric change from N(3)-H to N(1)-H in the complex NH4[VO2L] center dot 2H(2)O.
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Capability of 19-L polycarbonate plastic water cooler containers for efficient solar water disinfection (SODIS): Field case studies in India, Bahrain and Spain(Solar Energy)
(Keogh M. B., Castro-Alferez M., Polo-Lopez M.I., Fernandez Calderero Y.A., Al-Eryani C., Joseph-Titus, Sawant B., Dhodapkar R., Mathur C., McGuigan K.G., Fernandez-Ibanez P.,volume 116,,page 1-11,Year : 2005)
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No information is available
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GIS based solid waste management information system for Nagpur city, India(Journal of Environmental Science and Engineering)
(Ritesh Vijay, Preeti Jain, Nitu Sharma, J. K. Bhattacharya, A. N. Vaidya and R. A. Sohony,Vol(55),Issue(1),Pages(114-119),,,Year : )
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No information is available
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Hydraulic optimisation of secondary clarification(Water 21)
(Girish Pophali,,,,Year : )
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No information is available
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