1
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Chowdhury F, Rashwan TL, Mondal P, Behazin M, Keech PG, Sharma JS, Krol M. Effect of compaction on bisulfide diffusive transport through MX-80 bentonite. J Contam Hydrol 2024; 264:104341. [PMID: 38701693 DOI: 10.1016/j.jconhyd.2024.104341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 03/16/2024] [Accepted: 04/10/2024] [Indexed: 05/05/2024]
Abstract
Canada's deep geological repository (DGR) design includes an engineered barrier system where highly compacted bentonite (HCB) surrounds the copper-coated used fuel containers (UFCs). Microbial-influenced corrosion is a potential threat to long-term integrity of UFC as bisulfide (HS-) may be produced by microbial activities under anaerobic conditions and transported via diffusion through the HCB to reach the UFC surface, resulting in corrosion of copper. Therefore, understanding HS- transport mechanisms through HCB is critical for accurate prediction of copper corrosion allowance. This study investigated HS- transport behaviour through MX-80 bentonite at dry densities 1070-1615 kg m-3 by performing through-diffusion experiments. Following HS- diffusion, bromide (Br-) diffusion and Raman spectroscopy analyses were performed to explore possible physical or mineralogical alterations of bentonite caused by interacting with HS-. In addition, accessible porosity ε was estimated using extended Archie's law. Effective diffusion coefficient of HS- was found 2.5 × 10-12 m2 s-1 and 5.0× 10-12 m2 s-1 for dry densities 1330 and 1070 kg m-3, respectively. No HS- breakthrough was observed for highly compacted bentonite (1535-1615 kg m-3) over the experimental timeframe (170 days). Raman spectroscopy results revealed that HS- reacted with iron in bentonite and precipitated as mackinawite and, therefore, it was immobilized. Finally, results of this study imply that HS- transport towards UFC will be highly controlled by the available iron content and dry density of the buffer material.
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Affiliation(s)
- F Chowdhury
- Department of Civil Engineering, Lassonde School of Engineering, York University, Canada
| | - T L Rashwan
- Department of Civil Engineering, Lassonde School of Engineering, York University, Canada; School of Engineering and Innovation, The Open University, UK
| | - P Mondal
- Department of Civil Engineering, Lassonde School of Engineering, York University, Canada
| | - M Behazin
- Nuclear Waste Management Organization, Canada
| | - P G Keech
- Nuclear Waste Management Organization, Canada
| | - J S Sharma
- Department of Civil Engineering, Lassonde School of Engineering, York University, Canada
| | - M Krol
- Department of Civil Engineering, Lassonde School of Engineering, York University, Canada.
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2
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Jadhav A, Phatangare A, Ganesapandy T, Bholane G, Sonawane A, Khantwal N, Kamble P, Mondal P, Dhamgaye V, Dahiwale S, Phase D, Bhoraskar V, Dhole S. Synchrotron X-ray assisted degradation of industrial wastewater by advanced oxidation process. Radiat Phys Chem Oxf Engl 1993 2022. [DOI: 10.1016/j.radphyschem.2022.110161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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3
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Mah A, Moustapha A, Roberts L, Leach A, Kaban G, Zimmermann R, Shavadia J, Orvold J, Mondal P, Martin L. CAN PATIENTS PRESENTING TO THE ED WITH CHEST PAIN WHO HAVE INTERMEDIATE-RISK HEART SCORES BE MANAGED AS OUTPATIENTS? A RETROSPECTIVE REVIEW OF TWO RAPID ACCESS CHEST PAIN CLINICS. Can J Cardiol 2021. [DOI: 10.1016/j.cjca.2021.07.046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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4
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Agarwal A, Bajpai J, Chatterjee A, Kapoor A, Saklani A, Mokal S, Mondal P, Eaga P, Bhargava P, Desouza A, Ostwal V, Ramaswamy A, Dandekar S, Reiki B, Bal M, Prabhash K, Gupta S, Banawali S. 429P Demographics, pattern of care, and outcome analysis of malignant melanoma cases from a tertiary care centre in India. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.10.421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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5
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Kumar M, Panigrahi A, Mondal P, De R, Datta S, Dolai T, Chakraborty P, Bhattacharyya M, Ghosh M. Inherited and acquired thrombophilia as a modifier of clinical course of chronic immune thrombocytopenia. J Appl Hematol 2020. [DOI: 10.4103/joah.joah_75_19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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6
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Papneja N, Ahmed S, Mondal P, Barrera I, Papneja A, Batist G, Kavan P. Outcomes of first-line FOLFIRINOX (FFX) versus gemcitabine and nab-paclitaxel (GN) in patients with advanced pancreatic cancer: Multi-Institutional Canadian sites experience. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz247.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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7
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Khanduri A, Sahu AR, Wani SA, Khan RIN, Pandey A, Saxena S, Malla WA, Mondal P, Rajak KK, Muthuchelvan D, Mishra B, Sahoo AP, Singh YP, Singh RK, Gandham RK, Mishra BP. Dysregulated miRNAome and Proteome of PPRV Infected Goat PBMCs Reveal a Coordinated Immune Response. Front Immunol 2018; 9:2631. [PMID: 30524425 PMCID: PMC6262310 DOI: 10.3389/fimmu.2018.02631] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Accepted: 10/25/2018] [Indexed: 12/11/2022] Open
Abstract
In this study, the miRNAome and proteome of virulent Peste des petits ruminants virus (PPRV) infected goat peripheral blood mononuclear cells (PBMCs) were analyzed. The identified differentially expressed miRNAs (DEmiRNAs) were found to govern genes that modulate immune response based on the proteome data. The top 10 significantly enriched immune response processes were found to be governed by 98 genes. The top 10 DEmiRNAs governing these 98 genes were identified based on the number of genes governed by them. Out of these 10 DEmiRNAs, 7 were upregulated, and 3 were downregulated. These include miR-664, miR-2311, miR-2897, miR-484, miR-2440, miR-3533, miR-574, miR-210, miR-21-5p, and miR-30. miR-664 and miR-484 with proviral and antiviral activities, respectively, were upregulated in PPRV infected PBMCs. miR-210 that inhibits apoptosis was downregulated. miR-21-5p that decreases the sensitivity of cells to the antiviral activity of IFNs and miR-30b that inhibits antigen processing and presentation by primary macrophages were downregulated, indicative of a strong host response to PPRV infection. miR-21-5p was found to be inhibited on IPA upstream regulatory analysis of RNA-sequencing data. This miRNA that was also highly downregulated and was found to govern 16 immune response genes in the proteome data was selected for functional validation vis-a-vis TGFBR2 (TGF-beta receptor type-2). TGFBR2 that regulates cell differentiation and is involved in several immune response pathways was found to be governed by most of the identified immune modulating DEmiRNAs. The decreased luciferase activity in Dual Luciferase Reporter Assay indicated specific binding of miR-21-5p and miR-484 to their target thus establishing specific binding of the miRNAs to their targets.This is the first report on the miRNAome and proteome of virulent PPRV infected goat PBMCs.
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Affiliation(s)
- Alok Khanduri
- Division of Veterinary Biotechnology, ICAR-Indian Veterinary Research Institute (IVRI), Bareilly, India
| | - Amit Ranjan Sahu
- Division of Veterinary Biotechnology, ICAR-Indian Veterinary Research Institute (IVRI), Bareilly, India.,DBT-National Institute of Animal Biotechnology, Hyderabad, India
| | - Sajad Ahmad Wani
- Division of Veterinary Biotechnology, ICAR-Indian Veterinary Research Institute (IVRI), Bareilly, India.,The Ohio State University, Columbus, Ohio, OH, United States
| | - Raja Ishaq Nabi Khan
- Division of Veterinary Biotechnology, ICAR-Indian Veterinary Research Institute (IVRI), Bareilly, India
| | - Aruna Pandey
- Division of Veterinary Biotechnology, ICAR-Indian Veterinary Research Institute (IVRI), Bareilly, India
| | - Shikha Saxena
- Division of Veterinary Biotechnology, ICAR-Indian Veterinary Research Institute (IVRI), Bareilly, India
| | - Waseem Akram Malla
- Division of Veterinary Biotechnology, ICAR-Indian Veterinary Research Institute (IVRI), Bareilly, India
| | - Piyali Mondal
- Division of Veterinary Biotechnology, ICAR-Indian Veterinary Research Institute (IVRI), Bareilly, India
| | - Kaushal Kishor Rajak
- Division of Biological Products, ICAR-Indian Veterinary Research Institute (IVRI), Bareilly, India
| | - D Muthuchelvan
- Division of Virology, ICAR-Indian Veterinary Research Institute (IVRI), Mukteswar, India
| | - Bina Mishra
- Division of Biological Products, ICAR-Indian Veterinary Research Institute (IVRI), Bareilly, India
| | - Aditya P Sahoo
- ICAR- Directorate of Foot and Mouth Disease, Mukteswar, India
| | - Yash Pal Singh
- ARIS Cell, ICAR-Indian Veterinary Research Institute (IVRI), Bareilly, India
| | - Raj Kumar Singh
- Division of Veterinary Biotechnology, ICAR-Indian Veterinary Research Institute (IVRI), Bareilly, India
| | - Ravi Kumar Gandham
- Division of Veterinary Biotechnology, ICAR-Indian Veterinary Research Institute (IVRI), Bareilly, India.,DBT-National Institute of Animal Biotechnology, Hyderabad, India
| | - Bishnu Prasad Mishra
- Division of Veterinary Biotechnology, ICAR-Indian Veterinary Research Institute (IVRI), Bareilly, India
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Mishra B, Mondal P, Patel CL, Zafir I, Gangwar R, Singh N, Sonowal J, Bisht D, Sahu AR, Baig M, Sajjanar B, Singh RK, Gandham RK. VARV B22R homologue as phylogenetic marker gene for Capripoxvirus classification and divergence time dating. Virus Genes 2018; 55:51-59. [PMID: 30446925 DOI: 10.1007/s11262-018-1613-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Accepted: 11/07/2018] [Indexed: 10/27/2022]
Abstract
Sheeppox disease is associated with significant losses in sheep production world over. The sheep pox virus, the goatpox virus, and the lumpy skin disease virus cannot be distinguished by conventional serological tests. Identification of these pathogens needs molecular methods. In this study, seven genes viz. EEV maturation protein-F12L, Virion protein-D3R, RNA polymerase subunit-A5R, Virion core protein-A10L, EEV glycoprotein-A33R, VARV B22R homologue, and Kelch like protein-A55R that cover the start, middle, and end of the genome were selected. These genes were amplified from Roumanian-Fanar vaccine strain and Jaipur virulent strain, cloned, and sequenced. On analysis with the available database sequences, VARV B22R homologue was identified as a marker for phylogenetic reconstruction for classifying the sheeppox viruses of the ungulates. Further, divergence time dating with VARV B22R gene accurately predicted the sheeppox disease outbreak involving Jaipur virulent strain.
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Affiliation(s)
- Bina Mishra
- Division of Biological Products, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh, 243122, India.
| | - Piyali Mondal
- Division of Veterinary Biotechnology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh, 243122, India
| | - C L Patel
- Division of Biological Products, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh, 243122, India
| | - Insha Zafir
- Division of Biological Products, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh, 243122, India
| | - Rachna Gangwar
- Division of Biological Products, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh, 243122, India
| | - Neha Singh
- Division of Veterinary Biotechnology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh, 243122, India
| | - Joyshikh Sonowal
- Division of Veterinary Biotechnology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh, 243122, India
| | - Deepanker Bisht
- Division of Veterinary Biotechnology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh, 243122, India
| | - Amit Ranjan Sahu
- Division of Veterinary Biotechnology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh, 243122, India
| | - Mumtaz Baig
- Department of Zoology, Laboratory of Molecular and Conservation Genetics (LMCG), Govt. Vidarbha Institute of Science & Humanities, Amravati, Maharastra, 444604, India
| | - Basavaraj Sajjanar
- Division of Veterinary Biotechnology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh, 243122, India
| | - R K Singh
- Division of Veterinary Biotechnology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh, 243122, India
| | - Ravi Kumar Gandham
- Division of Veterinary Biotechnology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh, 243122, India.,National Institute of Animal Biotechnology (NIAB), Opp. Journalist Colony, Near Gowlidoddi Gachibowli, Hyderabad, Telangana, 500 032, India
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9
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Leis B, Frost A, Mondal P, Lyon A, Coverett K. ALTERING STANDARD ADMISSION ORDER SETS TO REDUCE LOW VALUE BLOOD TESTING: A PROSPECTIVE CROSS-SECTIONAL STUDY. Can J Cardiol 2018. [DOI: 10.1016/j.cjca.2018.07.150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
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10
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Singh DK, Kumar B, Shrinet G, Singh RP, Das A, Mantur BG, Pandey A, Mondal P, Sajjanar BK, Doimari S, Singh V, Kumari R, Tiwari AK, Gandham RK. Draft genome sequence of field isolate Brucella melitensis strain 2007BM/1 from India. J Glob Antimicrob Resist 2018; 13:152-153. [PMID: 29684575 DOI: 10.1016/j.jgar.2018.04.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Revised: 04/11/2018] [Accepted: 04/12/2018] [Indexed: 11/18/2022] Open
Abstract
OBJECTIVES Brucellosis is among one of the most widespread important global zoonotic diseases that is endemic in many parts of India. Brucella melitensis is supposed to be the most pathogenic species for humans. Here we report the draft genome sequence of B. melitensis strain 2007BM/1 isolated from a human in India. METHODS Genomic DNA was extracted from Brucella culture and was sequenced using an Illumina MiSeq platform. The generated reads were assembled using three de novo assemblers and the draft genome was annotated. RESULTS This monoisolate, with a genome length of 3268756bp, was found to be resistant to azithromycin and trimethoprim/sulfamethoxazole but susceptible to tetracycline, ofloxacin, rifampicin, ciprofloxacin and doxycycline. The presence of virulence genes in the strain was identified. CONCLUSIONS The results obtained will help in understanding drug resistance mechanisms and virulence factors in highly zoonotic B. melitensis and suggest the need for judicious use of antibiotics in livestock health and management practices.
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Affiliation(s)
- D K Singh
- Division of Veterinary Public Health, ICAR-Indian Veterinary Research Institute, Izzatnagar, Bareilly 243122, Uttar Pradesh, India.
| | - Bablu Kumar
- Division of Biological Products, ICAR-Indian Veterinary Research Institute, Izzatnagar, Bareilly 243122, Uttar Pradesh, India
| | - Garima Shrinet
- Division of Biological Products, ICAR-Indian Veterinary Research Institute, Izzatnagar, Bareilly 243122, Uttar Pradesh, India
| | - R P Singh
- Division of Biological Products, ICAR-Indian Veterinary Research Institute, Izzatnagar, Bareilly 243122, Uttar Pradesh, India
| | - Aparajita Das
- Division of Biological Products, ICAR-Indian Veterinary Research Institute, Izzatnagar, Bareilly 243122, Uttar Pradesh, India
| | - B G Mantur
- Department of Microbiology, Belgaum Institute of Medical Sciences, District Hospital Campus, Belgaum 590 001, Karnataka, India
| | - Aruna Pandey
- Division of Veterinary Biotechnology, ICAR-Indian Veterinary Research Institute, Izzatnagar, Bareilly 243122, Uttar Pradesh, India
| | - Piyali Mondal
- Division of Veterinary Biotechnology, ICAR-Indian Veterinary Research Institute, Izzatnagar, Bareilly 243122, Uttar Pradesh, India
| | - B K Sajjanar
- Division of Veterinary Biotechnology, ICAR-Indian Veterinary Research Institute, Izzatnagar, Bareilly 243122, Uttar Pradesh, India
| | - Soni Doimari
- Division of Veterinary Public Health, ICAR-Indian Veterinary Research Institute, Izzatnagar, Bareilly 243122, Uttar Pradesh, India
| | - Vijayata Singh
- Division of Veterinary Public Health, ICAR-Indian Veterinary Research Institute, Izzatnagar, Bareilly 243122, Uttar Pradesh, India
| | - Reena Kumari
- Division of Veterinary Public Health, ICAR-Indian Veterinary Research Institute, Izzatnagar, Bareilly 243122, Uttar Pradesh, India
| | - A K Tiwari
- Division of Biological Standardization, ICAR-Indian Veterinary Research Institute, Izzatnagar, Bareilly 243122, Uttar Pradesh, India
| | - Ravi Kumar Gandham
- Division of Veterinary Biotechnology, ICAR-Indian Veterinary Research Institute, Izzatnagar, Bareilly 243122, Uttar Pradesh, India
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11
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Prasad MSV, Varma AK, Kumari P, Mondal P. Production of lipid-containing microalgal biomass and simultaneous removal of nitrate and phosphate from synthetic wastewater. Environ Technol 2018; 39:669-681. [PMID: 28327057 DOI: 10.1080/09593330.2017.1310302] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Accepted: 03/18/2017] [Indexed: 06/06/2023]
Abstract
The major concerns of the modern society such as increasing population, climate change and economic development are imposing continuous stress on water and energy resources. The present work deals with the cultivation of green algae Desmodesmus abundans for optimum biomass productivity and lipid content as well as simultaneous removal of nitrate and phosphate from synthetic wastewater. The algal biomass is characterized by ultimate analysis, scanning electron microscopic analysis and thermogravimetric analysis. The effect of time, inoculum concentration and nitrate concentration on four responses (biomass productivity, lipid content, removal of nitrate and removal of phosphate) are studied by response surface methodology using central composite design. The quadratic models are found to be suitable for each response. At optimized experimental conditions, the algae showed biomass productivity of 46.96 mg L-1 day-1, lipid content of 16.23%, nitrate removal of 86.64% and phosphate removal of 87.52% after 27 days, when the initial inoculum concentration was 6% and nitrate concentration was 1.25 g L-1.
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Affiliation(s)
- M S V Prasad
- a Department of Chemical Engineering , Indian Institute of Technology Roorkee , Roorkee , Uttarakhand , India
| | - A K Varma
- a Department of Chemical Engineering , Indian Institute of Technology Roorkee , Roorkee , Uttarakhand , India
| | - P Kumari
- a Department of Chemical Engineering , Indian Institute of Technology Roorkee , Roorkee , Uttarakhand , India
| | - P Mondal
- a Department of Chemical Engineering , Indian Institute of Technology Roorkee , Roorkee , Uttarakhand , India
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12
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Arora N, Tripathi S, Kumar P, Mondal P, Mishra A, Prasad A. Recent advancements and new perspectives in animal models for Neurocysticercosis immunopathogenesis. Parasite Immunol 2017; 39. [PMID: 28467600 DOI: 10.1111/pim.12439] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Accepted: 04/25/2017] [Indexed: 02/06/2023]
Abstract
Neurocysticercosis (NCC), one of the most common parasitic diseases of the central nervous system, is caused by Taenia solium. This parasite involves two hosts, intermediate hosts (pig and human) and a definitive host (human) and has various stages in its complex life cycle (eggs, oncosphere, cysticerci and adult tapeworm). Hence, developing an animal model for T. solium that mimics its natural course of infection is quite challenging. We have reviewed here the animal models frequently used to study immunopathogenesis of cysticercosis and also discussed their usefulness for NCC studies. We found that researchers have used mice, rats, guinea pigs, dogs, cats and pigs as models for this disease with varying degrees of success. Mice and rats models have been utilized extensively for immunopathogenesis studies due to their relative ease of handling and abundance of commercially available reagents to study these small animal models. These models have provided some very exciting results for in-depth understanding of the disease. Of late, the experimentally/naturally infected swine model is turning out to be the best animal model as the disease progression closely resembles human infection in pigs. However, handling large experimental animals has its own challenges and limitations.
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Affiliation(s)
- N Arora
- School of Basic Sciences, Indian Institute of Technology Mandi, Mandi, India
| | - S Tripathi
- School of Basic Sciences, Indian Institute of Technology Mandi, Mandi, India.,Department of Medicine, Boston University School of Medicine, Boston, MA, USA
| | - P Kumar
- School of Basic Sciences, Indian Institute of Technology Mandi, Mandi, India
| | - P Mondal
- School of Basic Sciences, Indian Institute of Technology Mandi, Mandi, India
| | - A Mishra
- Cellular and Molecular Neurobiology Unit, Indian Institute of Technology Jodhpur, Jodhpur, India
| | - A Prasad
- School of Basic Sciences, Indian Institute of Technology Mandi, Mandi, India
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13
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Udell J, Brickman A, Chu A, Mondal P, Fang J, Tusevljak N, Ko D, Tu J. P632Relationship of outpatient provider volume and lipid screening performance measure adherence among patients at risk of cardiovascular disease. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx501.p632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- J.A. Udell
- Institute for Clinical Evaluative Sciences, Women's College Hospital, and Peter Munk Cardiac Centre, University of Toronto, Toronto, Canada
| | | | - A. Chu
- Institute for Clinical Evaluative Sciences, Toronto, Canada
| | - P. Mondal
- Institute for Clinical Evaluative Sciences, Toronto, Canada
| | - J. Fang
- Institute for Clinical Evaluative Sciences, Toronto, Canada
| | - N. Tusevljak
- Institute for Clinical Evaluative Sciences, Toronto, Canada
| | - D.T. Ko
- Institute for Clinical Evaluative Sciences, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Canada
| | - J.V. Tu
- Institute for Clinical Evaluative Sciences, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Canada
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14
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Mondal P, Goswami S, Basak S. Assessment of Efficacy of Transforaminal Epidural Steroid Injection for Management of Low Back Pain with Unilateral Radiculopathy in Industrial Workers: A Randomized Control Trial. J Clin Diagn Res 2017. [DOI: 10.7860/jcdr/2017/26400.10765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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15
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Bhattacharya M, Mandal AR, Chakraborty SD, Maiti A, Maity A, Kuznetsov DV, Mondal P, Senapati D. Direct experimental observation of salt induced aspect ratio tunable PFPT silver-nanowire formation: SERS-based ppt level Hg2+ sensing from ground water. RSC Adv 2016. [DOI: 10.1039/c6ra02900k] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
A common salt induced aspect ratio tunable PFPT silver nanowire synthesis with a plausible explanation based on real-time direct experimental observation finds application as a potential assay for ppt level Hg(ii) sensing from ground water.
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Affiliation(s)
- M. Bhattacharya
- Nanophotonics Laboratory
- Chemical Sciences Division
- Saha Institute of Nuclear Physics
- Kolkata
- India 700064
| | - A. R. Mandal
- Department of Functional Nanosystems and High Temperature Materials
- National University of Science and Technology ‘MISiS’
- Moscow
- Russia
| | - S. Das Chakraborty
- Nanophotonics Laboratory
- Chemical Sciences Division
- Saha Institute of Nuclear Physics
- Kolkata
- India 700064
| | - Arpan Maiti
- Surface Physics and Materials Sciences Division
- Saha Institute of Nuclear Physics
- Kolkata
- India 700064
| | - Achyut Maity
- Surface Physics and Materials Sciences Division
- Saha Institute of Nuclear Physics
- Kolkata
- India 700064
| | - D. V. Kuznetsov
- Department of Functional Nanosystems and High Temperature Materials
- National University of Science and Technology ‘MISiS’
- Moscow
- Russia
| | - P. Mondal
- Nanophotonics Laboratory
- Chemical Sciences Division
- Saha Institute of Nuclear Physics
- Kolkata
- India 700064
| | - D. Senapati
- Nanophotonics Laboratory
- Chemical Sciences Division
- Saha Institute of Nuclear Physics
- Kolkata
- India 700064
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16
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Dabkara D, Biswas B, Dwary A, Ghosh I, Mukherjee S, Gupta S, Mallick I, Mondal P. 258P Clinical experience of tyrosine kinase inhibitors in metastatic renal cell carcinoma: results from a cancer center in Eastern India. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv524.23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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17
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Das K, Uppal A, Saini RK, Varshney GK, Mondal P, Gupta PK. Hyper-Rayleigh scattering from gold nanoparticles: effect of size and shape. Spectrochim Acta A Mol Biomol Spectrosc 2014; 128:398-402. [PMID: 24682054 DOI: 10.1016/j.saa.2014.02.152] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2013] [Revised: 02/20/2014] [Accepted: 02/23/2014] [Indexed: 06/03/2023]
Abstract
We report hyper-Rayleigh scattering (HRS) properties of gold nanoparticles (GNPs) of five different shapes, quasi-spherical (∼10 and ∼20 nm diameter), rod (aspect ratio ∼2), and branched shapes, tetrapod, flower and star with 800 nm, 150 fs laser excitation. Using ∼10 nm spherical GNPs as reference, the first hyperpolarizability (β) values were calculated for all other shapes. Star and flower shaped GNPs have the highest hyperpolarizability (∼130 and ∼52 times higher, respectively), while rod and tetrapod shaped GNPs only have modest enhancement (∼7 times), which is similar to ∼20 nm size quasi-spherical particles. These enhancements are attributed to reduced symmetry as well as the presence of sharp tips on GNP surface. When the β values are normalized with respect to the number of atoms per particle, the flower and star shaped GNPs still have the highest hyperpolarizability values. The polar plots of vertically polarized HRS signal as a function of the angle of polarization of the incoming incident light shows two lobes, indicating that excitation is predominantly dipolar in nature although the size of some GNPs are big enough to show a quadrupolar response. It is believed that the presence of sharp tips at the surface of these large sized GNPs is responsible for the observed dipolar response. This study shows that GNPs having sharp tips might be a better candidate when their nonlinear properties are used for sensing applications.
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Affiliation(s)
- K Das
- Laser Bio-Medical Applications & Instrumentation Division, Raja Ramanna Center for Advanced Technology, Indore 452013, MP, India.
| | - A Uppal
- Laser Bio-Medical Applications & Instrumentation Division, Raja Ramanna Center for Advanced Technology, Indore 452013, MP, India
| | - R K Saini
- Laser Bio-Medical Applications & Instrumentation Division, Raja Ramanna Center for Advanced Technology, Indore 452013, MP, India
| | - G K Varshney
- Laser Bio-Medical Applications & Instrumentation Division, Raja Ramanna Center for Advanced Technology, Indore 452013, MP, India
| | - P Mondal
- Indus Synchrotrons Utilization Division, Raja Ramanna Center for Advanced Technology, Indore 452013, MP, India
| | - P K Gupta
- Laser Bio-Medical Applications & Instrumentation Division, Raja Ramanna Center for Advanced Technology, Indore 452013, MP, India
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Roy K, Mondal P, Bayen SP, Chowdhury P. Sonochemical Synthesis of Polypyrrole Salt and Study of its Cr(VI) Sorption-Desorption Properties. Journal of Macromolecular Science, Part A 2012. [DOI: 10.1080/10601325.2012.722852] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Mondal P, Jana S, Balaji A, Ramakrishna R, Kanthal L. Synthesis of Some New Isoxazoline Derivatives of Chalconised Indoline 2-one as a Potential Analgesic, Antibacterial and Anthelmimtic Agents. J Young Pharm 2012; 4:38-41. [PMID: 22523459 PMCID: PMC3326781 DOI: 10.4103/0975-1483.93574] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
A series of novel 1[5”-(2”’-substituted phenyl)-4”,5”’-dihydro isoxazole-3”-yl]-3-[(4 substituted phenyl)imino]1-3-dihydro-2H-indole-2-one were synthesized from different substituted chalconised indole-2,3-dione was prepared from the different chalconised Isatin. The structures of the compounds were elucidated by elemental and spectral (IR, 1H NMR, and MS) analysis. The synthesized compounds were screened for their analgesic activity by the acetic acid induced Writhing method and in vitro antimicrobial activity against the Gram-positive bacteria—Staphylococcus aureus and the Gram-negative bacteria—Pseudomonas auroginosa, Pseudomonas mirabilis, and E. coli by the cup plate agar diffusion method. Compounds 6a1, 6a3, 6b3, and 6b2 were found to be active against bacteria. The compounds 6a1, 6b3, and 6a3 show a significant analgesic activity. Synthesized compounds also screened for anthelmintic activity against Pheretima posthuma. Compounds 6a1, 6b1, and 6b3 show significant anthelmintic activity.
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Affiliation(s)
- P Mondal
- Department of Pharmaceutical Chemistry, Vaageswari College of Pharmacy, Karimnagar, India
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Mondal P, Bayen SP, Roy K, Chowdhury P. Selective Solid Phase Extraction of Chromium(VI) using Silica Gel Immobilized 4-vinyl Pyridine/Cupric Ion Complex. SEP SCI TECHNOL 2012. [DOI: 10.1080/01496395.2012.686422] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Samanta SK, Fariduddin K, Mahapatra N, Bhunia J, Mondal P. Hooch blindness: a community study report on a few indoor patients of toxic optic neuropathy following consumption of adulterated alcohol in West Bengal. Nepal J Ophthalmol 2012; 4:162-4. [PMID: 22344014 DOI: 10.3126/nepjoph.v4i1.5868] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
INTRODUCTION Hooch blindness following consumption of adulterated alcohol has been known for centuries. OBJECTIVE To study cases of mass alcohol intoxication followed by Hooch blindness in eastern India. MATERIALS AND METHODS Ten patients of toxic amblyopia collected from a community mass intoxication following consumption of adulterated alcohol were studied. The parameters studied were the findings of ocular examination, applanation tonometry, automated perimetry and visual-evoked potential (VEP). As a part of the special investigations fundus photography and OCT were done. Routine blood examination, fasting lipid profile, postprandial blood sugar estimation were done . All patients were treated with injections of methyl prednisolone and Hydroxy cobalamine, antioxidants and local neuro-protective agents. RESULTS Along with diminished vision (from NPL to 3/60), marked pallor of the disc without any other retinal change were noted. The amplitude on VEP was significantly reduced. However, visual improvement (up to 6/18) in 7 patients was observed within 6 weeks of treatment. CONCLUSION Hooch blindness in India can be prevented by creating awareness among the target population and reducing the cost of country liquor.
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Affiliation(s)
- S K Samanta
- Calcutta National Medical College and Hospital, West Bengal, India.
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Das B, Kumar S, Mondal P. Experimental measurement and correlation of flash point of alternate PUREX/UREX solvent (36% TiAP) in C8–C16 diluents. J Radioanal Nucl Chem 2011. [DOI: 10.1007/s10967-011-1093-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Islam M, Mondal P, Roy AS, Tuhina K, Mondal S, Hossain D. Polystyrene-Anchored Palladium(II) Schiff Base Complex: A Reusable Catalyst for Phosphine-Free and Copper-Free Sonogashira Cross-Coupling Reaction in Aqueous Medium. SYNTHETIC COMMUN 2011. [DOI: 10.1080/00397911.2010.515331] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Manirul Islam
- a Department of Chemistry , University of Kalyani , Nadia , India
| | - P. Mondal
- a Department of Chemistry , University of Kalyani , Nadia , India
| | - A. Singha Roy
- a Department of Chemistry , University of Kalyani , Nadia , India
| | - K. Tuhina
- b Department of Chemistry , B.S. College , Danapur , India
| | - S. Mondal
- a Department of Chemistry , University of Kalyani , Nadia , India
| | - D. Hossain
- a Department of Chemistry , University of Kalyani , Nadia , India
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Mondal P, Mohanty B, Majumder CB. Removal of arsenic from simulated groundwater using GAC-Cu in batch reactor: Kinetics and equilibrium studies. CAN J CHEM ENG 2011. [DOI: 10.1002/cjce.20478] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Mondal P, Roy K, Bayen S, Chowdhury P. Synthesis of polypyrrole nanoparticles and its grafting with silica gel for selective binding of chromium(VI). Talanta 2011; 83:1482-6. [DOI: 10.1016/j.talanta.2010.11.037] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2010] [Revised: 11/13/2010] [Accepted: 11/15/2010] [Indexed: 10/18/2022]
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Abstract
Schiff bases of isatin with aminothiazole, its N-mannich bases and Spiro isatin derivatives were synthesized. Their chemical structures were confirmed by Infrared, 1H-Nuclear Magnetic Resonance data and elemental analysis. Antimicrobial evaluation was performed by the agar diffusion method against four pathogenic bacteria and two pathogenic fungi. Anti-inflammatory activity was tested by carragenin-induced rat paw edema and compounds were evaluated for analgesic action by the acetic acid-induced writhing method; Compounds Aa, Ab and A5, A6 were found to be active against bacteria and fungi. The compounds A3, A6, Aa and Ab showed anti-inflammatory activity, having a percentage protection value of 34.69, 32.65, 38.77 and 36.73 as compared with that of indomethacin, with % protection of 46.93. Similarly, the compounds Aa, Ab and A6 showed analgesic activity, with % protection of 67.51, 64.78 and 49.81 as compared with the standard with % protection of 79.56.
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Affiliation(s)
- P Mondal
- Department of Pharmaceutical Chemistry, Institute of Pharmacy and Technology, Salipur, Cuttack, India
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Chowdhury P, Mondal P, Roy K. Synthesis of polyaniline nanoparticle grafted silica gel and study of its Cr(VI) binding property. J Appl Polym Sci 2010. [DOI: 10.1002/app.32790] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Islam SM, Mondal P, Tuhina K, Roy AS, Mondal S, Hossain D. A Reusable Polymer-Anchored Palladium(II) Schiff Base Complex Catalyst for the Suzuki Cross-Coupling, Heck and Cyanation Reactions. J Inorg Organomet Polym Mater 2010. [DOI: 10.1007/s10904-010-9352-y] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Islam M, Mondal S, Mondal P, Roy AS, Mobarak M, Hossain D. A Recyclable Heterogeneous Copper(II) Schiff Base Catalyst for the O-Arylation Reaction of Phenols with Aryl Halides. Journal of Chemical Research 2010. [DOI: 10.3184/030823410x12680707465896] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Immobilisation of copper acetate onto a modified polystyrene provided a polymer-supported copper(II) Schiff base catalyst, which is effective in the O-arylation reaction of phenols with aryl halides to give diaryl ethers in high yields. This catalyst is air-stable and was recycled for five times with minimal loss of activity.
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Affiliation(s)
- Manirul Islam
- Department of Chemistry, University of Kalyani, Kalyani, Nadia, 741235, W.B., India
| | - S. Mondal
- Department of Chemistry, University of Kalyani, Kalyani, Nadia, 741235, W.B., India
| | - P. Mondal
- Department of Chemistry, University of Kalyani, Kalyani, Nadia, 741235, W.B., India
| | - A. S. Roy
- Department of Chemistry, University of Kalyani, Kalyani, Nadia, 741235, W.B., India
| | - M. Mobarak
- Department of Chemistry, University of Kalyani, Kalyani, Nadia, 741235, W.B., India
| | - D. Hossain
- Department of Chemistry, University of Kalyani, Kalyani, Nadia, 741235, W.B., India
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Islam S, Mondal P, Roy AS, Mondal S, Mobarak M. An efficient and reusable polymer-supported palladium catalyst for the Suzuki cross-coupling reactions of aryl halides. Journal of Chemical Research 2009. [DOI: 10.3184/030823409x12594170566203] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A reusable, air-stable polymer-anchored palladium (II) Schiff base complex catalyst, P-[{(NCH)C6H4}Pd(OAc)]2 was prepared and was found to be highly active in Suzuki cross-coupling reactions of aryl halides with phenyl boronic acid in an aqueous medium to give biaryl products in high yields.
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Affiliation(s)
- S.M. Islam
- Department of Chemistry, University of Kalyani, Kalyani, Nadia, 741235, W.B., India
| | - P. Mondal
- Department of Chemistry, University of Kalyani, Kalyani, Nadia, 741235, W.B., India
| | - A. Singha Roy
- Department of Chemistry, University of Kalyani, Kalyani, Nadia, 741235, W.B., India
| | - S. Mondal
- Department of Chemistry, University of Kalyani, Kalyani, Nadia, 741235, W.B., India
| | - M. Mobarak
- Department of Chemistry, University of Kalyani, Kalyani, Nadia, 741235, W.B., India
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Mondal P, Mohanty B, Majumder CB. Treatment of simulated arsenic contaminated groundwater using GAC‐Cu in batch reactor: Optimization of process parameters. CAN J CHEM ENG 2009. [DOI: 10.1002/cjce.20214] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- P. Mondal
- Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee‐247667, Uttrakhand, India
| | - B. Mohanty
- Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee‐247667, Uttrakhand, India
| | - C. B. Majumder
- Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee‐247667, Uttrakhand, India
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Islam S, Tuhina K, Mubarak M, Mondal P. Hydrogenation of various organic substrates using polystyrene anchored orthometallated ruthenium (II) complex as catalyst. ACTA ACUST UNITED AC 2009. [DOI: 10.1016/j.molcata.2008.09.010] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Mondal P, Hazarika K, Deka A, Deka R. Density functional studies on Lewis acidity of alkaline earth metal exchanged faujasite zeolite. Molecular Simulation 2008. [DOI: 10.1080/08927020802073032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- P. Mondal
- a Department of Chemical Sciences , Tezpur University , Napaam, Tezpur, 784 028, Assam, India
- b Department of Chemistry , Assam University , Dargakona, Silchar, 788 011, Assam, India
| | - K.K. Hazarika
- a Department of Chemical Sciences , Tezpur University , Napaam, Tezpur, 784 028, Assam, India
| | - A. Deka
- a Department of Chemical Sciences , Tezpur University , Napaam, Tezpur, 784 028, Assam, India
| | - R.C. Deka
- a Department of Chemical Sciences , Tezpur University , Napaam, Tezpur, 784 028, Assam, India
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Mondal P, Majumder CB, Mohanty B. Growth of three bacteria in arsenic solution and their application for arsenic removal from wastewater. J Basic Microbiol 2008; 48:521-5. [DOI: 10.1002/jobm.200800084] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Mondal P, Majumder CB, Mohanty B. Treatment of arsenic contaminated water in a laboratory scale up-flow bio-column reactor. J Hazard Mater 2008; 153:136-45. [PMID: 17890001 DOI: 10.1016/j.jhazmat.2007.08.042] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2007] [Revised: 07/31/2007] [Accepted: 08/13/2007] [Indexed: 05/17/2023]
Abstract
The present paper describes the observations on the treatment of arsenic contaminated synthetic industrial effluent in a bio-column reactor. Ralstonia eutropha MTCC 2487 has been immobilized on the granular activated carbon (GAC) bed in the column reactor. The synthetic water sample containing As(T) (As(III):As(V)=1:1), Fe, Mn, Cu and Zn at the initial concentrations of 25, 10, 2, 5, 10 ppm, respectively, was used. Concentrations of all the elements have been found to be reduced below their permissible limits in the treated water. The significant effect of empty bed contact time (EBCT) and bed height on the arsenic removal was observed in the initial stage. However, after some time of operation (approximately 3-4 days) no such effect was observed. Removal of As(III) and As(V) was almost similar after approximately 2 days of operation. However, at the initial stage As(V) removal was slightly more than that of As(III). In absence of washing, after approximately 4-5 days of operation, the bio-column reactor was observed to act as a GAC column reactor based on physico-chemical adsorption. Like arsenic, the percent removals of Fe, Mn, Cu and Zn also attained minimum after approximately 1 day and increased significantly to the optimum value within 3-4 days of operation. Dissolved oxygen (DO) has been found to decrease along with the increasing bed height from the bottom. The pH of the solution in the reactor has increased slightly and oxidation-reduction potential (ORP) has decreased with the time of operation.
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Affiliation(s)
- P Mondal
- Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, Uttranchal, India
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Mondal P, Majumder CB, Mohanty B. Treatment of arsenic contaminated water in a batch reactor by using Ralstonia eutropha MTCC 2487 and granular activated carbon. J Hazard Mater 2008; 153:588-599. [PMID: 17980486 DOI: 10.1016/j.jhazmat.2007.09.028] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2007] [Revised: 07/31/2007] [Accepted: 09/03/2007] [Indexed: 05/25/2023]
Abstract
This paper presents the observations on the bio-removal of arsenic from contaminated water by using Ralstonia eutropha MTCC 2487 and activated carbon in a batch reactor. The effects of agitation time, pH, type of granular activated carbon (GAC) and initial arsenic concentration (As(o)) on the % removal of arsenic have been discussed. Under the experimental conditions, optimum removal was obtained at the pH of 6-7 with agitation time of 100 h. The % removal of As(T) increased initially with the increase in As(o) and after attaining the maximum removal (~86%) at the As(o) value of around 15 ppm, it started to decrease. Simultaneous adsorption bioaccumulation (SABA) was observed, when fresh GAC was used as supporting media for bacterial immobilization. In case of SABA, the % removal of As(III) was almost similar (only ~1% more) to the additive values of individual removal of As(III) obtained by only adsorption and only bio-adsorption. However, for As(V) the % removal was less (~8%) than the additive value of the individual % removals obtained by only adsorption and bio-adsorption. Percentage removal of Fe, Mn, Cu and Zn were 65.17%, 72.76%, 98.6% and 99.31%, respectively. Maximum regeneration (~99.4%) of the used bio-adsorbent was achieved by the treatment with 5NH(2)SO(4) followed by 1N NaOH and 30% H(2)O(2) in HNO(3). The fitness of the isotherms to predict the specific uptake for bio-adsorption/accumulation process has been found to decrease in the following order: Temkin isotherm>Langmuir isotherm>Freundlich isotherm. For the adsorption process with fresh GAC the corresponding order is Freundlich isotherm>Langmuir isotherm>Temkin isotherm for As(V) and As(T). However, for As(III) it was Langmuir>Temkin>Freundlich.
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Affiliation(s)
- P Mondal
- Department of Chemical Engineering, Indian Institute of Technology Roorkee, Uttranchal, India
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Mondal P, Majumder CB, Mohanty B. Effects of adsorbent dose, its particle size and initial arsenic concentration on the removal of arsenic, iron and manganese from simulated ground water by Fe3+ impregnated activated carbon. J Hazard Mater 2008; 150:695-702. [PMID: 17574333 DOI: 10.1016/j.jhazmat.2007.05.040] [Citation(s) in RCA: 81] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2007] [Revised: 05/06/2007] [Accepted: 05/08/2007] [Indexed: 05/15/2023]
Abstract
This paper presents the observations of the study on arsenic removal from a contaminated ground water (simulated) by adsorption onto Fe(3+) impregnated granular activated carbon (GAC-Fe). Fe(2+), Fe(3+) and Mn(2+) have also been considered along with arsenic species in the water sample. Similar study has also been done with untreated granular activated carbon (GAC) for comparison. The effects of adsorbent dose, particle size of adsorbent and initial arsenic concentration on the removal of As(T), As(III), As(V), Fe(2+), Fe(3+) and Mn(2+) have been discussed. Under the experimental conditions, the optimum adsorbent doses for GAC-Fe and GAC have been found to be 8 g/l and 24 g/l, respectively with an agitation time of 15 h. Particle size of the adsorbents (both GAC and GAC-Fe) has shown negligible effect on the removal of arsenic and Fe species. However, for Mn removal the effect of adsorbent particle size is comparatively more. Percentage removal of As(T), As(V) and As(III) increase with the decrease in initial arsenic concentration (As(0)). However, the increase in percentage removal of all the arsenic species with decrease in As(0) are less for higher value of As(0) (3000-500 ppb) than those of the lower value of As(0) (500-10 ppb). The % removal of As(T), As(III), As(V), Fe, and Mn were approximately 95%, 92.4%, 97.6%, 99% and 41.2%, respectively when 8 g/l GAC-Fe was used at the As(0) value of 200 ppb. However, for GAC these values were approximately 55.5%, 44%, 71%, 98% and 97%. The pH and temperature of the study were 7+/-0.1 and 30+/-1 degrees C, respectively.
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Affiliation(s)
- P Mondal
- Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee 247667, Uttranchal, India
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Haldar D, Sarkar AP, Bisoi S, Mondal P. Assessment of client's perception in terms of satisfaction and service utilization in the central government health scheme dispensary at Kolkata. Indian J Community Med 2008; 33:121-3. [PMID: 19967039 PMCID: PMC2784620 DOI: 10.4103/0970-0218.40883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2007] [Accepted: 12/05/2007] [Indexed: 12/02/2022] Open
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Mondal P, Majumder CB, Mohanty B. Laboratory based approaches for arsenic remediation from contaminated water: recent developments. J Hazard Mater 2006; 137:464-79. [PMID: 16616812 DOI: 10.1016/j.jhazmat.2006.02.023] [Citation(s) in RCA: 106] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2005] [Revised: 02/13/2006] [Accepted: 02/16/2006] [Indexed: 05/08/2023]
Abstract
Arsenic contamination in water has posed severe health problems around the world. In spite of the availability of some conventional techniques for arsenic removal from contaminated water, development of new laboratory based techniques along with enhancement and cost reduction of conventional techniques are essential for the benefit of common people. This paper provides an overview of the arsenic issue in water such as modes of contamination of ground water as well as surface water by arsenic, its metabolism and health impacts, factors influencing arsenic poisoning, fundamentals of arsenic poisoning mechanism and world scenario of arsenic poisoning. It discusses and compares the conventional laboratory based techniques, like precipitation with alum, iron, Fe/Mn, lime softening, reverse osmosis, electro dialysis, ion exchanges, adsorption on activated alumina/carbon, etc., for arsenic removal from contaminated water. It also discusses the best available techniques and mentions the cost comparison among these techniques too. Recent developments in the research on the laboratory based arsenic removal techniques, like improvement of conventional techniques and advances in removal technology along with its scopes and limitations have also been reviewed.
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Affiliation(s)
- P Mondal
- Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee 247667, Uttranchal, India
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Jana SK, Mondal P, Bhattacharyya SK. A historical perspective on the rational use of drugs (RUD)in India. Indian J Pharmacol 2006. [DOI: 10.4103/0253-7613.27715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Jana S, Mondal P. Pharmacoeconomics: The need to sensitize undergraduate medical students. Indian J Pharmacol 2005. [DOI: 10.4103/0253-7613.16849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Panja M, Mazumdar A, Ghosh S, Mazumdar B, Kar AK, Mondal P. The newer unconventional indications of permanent pacemakers. J Assoc Physicians India 2000; 48:1193-6. [PMID: 11280227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
In recent years, the indications for permanent pacemakers have expanded. The interest has focussed on hypertrophic cardiomyopathy, dilated cardiomyopathy and a new entity called hypertensive hypertrophy with cavity obliteration (HHCO). Pacemaker therapy is establishing itself for the prevention of atrial fibrillation. Pacing for neurocardiogenic syncope with newer pacing mode has encouraging datas. Pacemaker for long QT syndrome, after cardiac transplant and for haemodynamic improvement in occasional cases of first degree atrio-ventricular block is getting attention. The AHA and ACC guidelines updated in 1998 for implantation of cardiac pacemakers, now include several of these newer indications.
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Affiliation(s)
- M Panja
- Department of Cardiology, IPGMER and SSKM Hospital, Calcutta
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Chatterjee ND, Mondal P, Kundu S, Seal A. A variant of fracture dislocation of Monteggia. J Indian Med Assoc 1998; 96:286-7. [PMID: 10063289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Affiliation(s)
- N D Chatterjee
- Department of Orthopaedics, Calcutta Medical College & Hospitals, Calcutta
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