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Singh A, Majumder A, Saidulu D, Bhattacharya A, Bhatnagar A, Gupta AK. Oxidative treatment of micropollutants present in wastewater: A special emphasis on transformation products, their toxicity, detection, and field-scale investigations. J Environ Manage 2024; 354:120339. [PMID: 38401495 DOI: 10.1016/j.jenvman.2024.120339] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 01/23/2024] [Accepted: 02/08/2024] [Indexed: 02/26/2024]
Abstract
Micropollutants have become ubiquitous in aqueous environments due to the increased use of pharmaceuticals, personal care products, pesticides, and other compounds. In this review, the removal of micropollutants from aqueous matrices using various advanced oxidation processes (AOPs), such as photocatalysis, electrocatalysis, sulfate radical-based AOPs, ozonation, and Fenton-based processes has been comprehensively discussed. Most of the compounds were successfully degraded with an efficiency of more than 90%, resulting in the formation of transformation products (TPs). In this respect, degradation pathways with multiple mechanisms, including decarboxylation, hydroxylation, and halogenation, have been illustrated. Various techniques for the analysis of micropollutants and their TPs have been discussed. Additionally, the ecotoxicity posed by these TPs was determined using the toxicity estimation software tool (T.E.S.T.). Finally, the performance and cost-effectiveness of the AOPs at the pilot scale have been reviewed. The current review will help in understanding the treatment efficacy of different AOPs, degradation pathways, and ecotoxicity of TPs so formed.
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Affiliation(s)
- Adarsh Singh
- Environmental Engineering Division, Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India
| | - Abhradeep Majumder
- School of Environmental Science and Engineering, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India
| | - Duduku Saidulu
- Environmental Engineering Division, Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India
| | - Animesh Bhattacharya
- School of Environmental Science and Engineering, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India
| | - Amit Bhatnagar
- Department of Separation Science, LUT School of Engineering Science, LUT University, Sammonkatu 12, Mikkeli FI-50130, Finland
| | - Ashok Kumar Gupta
- Environmental Engineering Division, Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India.
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2
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Majumder A, Otter P, Röher D, Bhatnagar A, Khalil N, Gupta AK, Bresciani R, Arias CA. Combination of advanced biological systems and photocatalysis for the treatment of real hospital wastewater spiked with carbamazepine: A pilot-scale study. J Environ Manage 2024; 351:119672. [PMID: 38042072 DOI: 10.1016/j.jenvman.2023.119672] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2023] [Revised: 11/18/2023] [Accepted: 11/20/2023] [Indexed: 12/04/2023]
Abstract
Over the past few decades, the increase in dependency on healthcare facilities has led to the generation of large quantities of hospital wastewater (HWW) rich in chemical oxygen demand (COD), total suspended solids (TSS), ammonia, recalcitrant pharmaceutically active compounds (PhACs), and other disease-causing microorganisms. Conventional treatment methods often cannot effectively remove the PhACs present in wastewater. Hence, hybrid processes comprising of biological treatment and advanced oxidation processes have been used recently to treat complex wastewater. The current study explores the performance of pilot-scale treatment of real HWW (3000 L/d) spiked with carbamazepine (CBZ) using combinations of moving and stationary bed bio-reactor-sedimentation tank (MBSST), aerated horizontal flow constructed wetland (AHFCW), and photocatalysis. The combination of MBSST and AHFCW could remove 85% COD, 93% TSS, 99% ammonia, and 30% CBZ. However, when the effluent of the AHFCW was subjected to photocatalysis, an enhanced CBZ removal of around 85% was observed. Furthermore, the intermediate products (IPs) formed after the photocatalysis was also less toxic than the IPs formed during the biological processes. The results of this study indicated that the developed pilot-scale treatment unit supplemented with photocatalysis could be used effectively to treat HWW.
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Affiliation(s)
- Abhradeep Majumder
- School of Environmental Science and Engineering, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India
| | | | | | - Amit Bhatnagar
- Department of Separation Science, LUT School of Engineering Science, LUT University, Sammonkatu 12, Mikkeli, FI-50130, Finland
| | - Nadeem Khalil
- Environmental Engineering Section, Department of Civil Engineering Aligarh Muslim University, Aligarh, 202001, India
| | - Ashok Kumar Gupta
- Environmental Engineering Division, Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India.
| | | | - Carlos A Arias
- Department of Biology, Aquatic Biology, Ole Worms Allé 1, Bldg 1135, Aarhus University, 8000, Aarhus C, Denmark
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Khan NA, López-Maldonado EA, Majumder A, Singh S, Varshney R, López JR, Méndez PF, Ramamurthy PC, Khan MA, Khan AH, Mubarak NM, Amhad W, Shamshuddin SZM, Aljundi IH. A state-of-art-review on emerging contaminants: Environmental chemistry, health effect, and modern treatment methods. Chemosphere 2023; 344:140264. [PMID: 37758081 DOI: 10.1016/j.chemosphere.2023.140264] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 09/16/2023] [Accepted: 09/22/2023] [Indexed: 10/03/2023]
Abstract
Pollution problems are increasingly becoming e a priority issue from both scientific and technological points of view. The dispersion and frequency of pollutants in the environment are on the rise, leading to the emergence have been increasing, including of a new class of contaminants that not only impact the environment but also pose risks to people's health. Therefore, developing new methods for identifying and quantifying these pollutants classified as emerging contaminants is imperative. These methods enable regulatory actions that effectively minimize their adverse effects to take steps to regulate and reduce their impact. On the other hand, these new contaminants represent a challenge for current technologies to be adapted to control and remove emerging contaminants and involve innovative, eco-friendly, and sustainable remediation technologies. There is a vast amount of information collected in this review on emerging pollutants, comparing the identification and quantification methods, the technologies applied for their control and remediation, and the policies and regulations necessary for their operation and application. In addition, This review will deal with different aspects of emerging contaminants, their origin, nature, detection, and treatment concerning water and wastewater.
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Affiliation(s)
- Nadeem A Khan
- Interdisciplinary Research Center for Membranes and Water Security (IRC-MWS), King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia.
| | - Eduardo Alberto López-Maldonado
- Faculty of Chemical Sciences and Engineering, Autonomous University of Baja, California, CP 22390, Tijuana, Baja California, México.
| | - Abhradeep Majumder
- School of Environmental Science and Engineering, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India
| | - Simranjeet Singh
- Interdisciplinary Centre for Water Research (ICWaR), Indian Institute of Science, Bangalore, 560012, India
| | - Radhika Varshney
- Interdisciplinary Centre for Water Research (ICWaR), Indian Institute of Science, Bangalore, 560012, India
| | - J R López
- Facultad de Ciencias Químico-Biológicas, Universidad Autónoma de Sinaloa, Av. Las Américas S/N, C.P. 80000, Culiacán, Sinaloa, México
| | - P F Méndez
- Facultad de Ciencias Químico-Biológicas, Universidad Autónoma de Sinaloa, Av. Las Américas S/N, C.P. 80000, Culiacán, Sinaloa, México
| | - Praveen C Ramamurthy
- Interdisciplinary Centre for Water Research (ICWaR), Indian Institute of Science, Bangalore, 560012, India
| | - Mohammad Amir Khan
- Department of Civil Engineering, Galgotias College of Engineering and Technology, Knowledge Park I, Greater Noida, 201310, Uttar Pradesh, India
| | - Afzal Husain Khan
- Department of Civil Engineering, College of Engineering, Jazan University, P.O. Box. 706, Jazan, 45142, Saudi Arabia
| | - Nabisab Mujawar Mubarak
- Petroleum and Chemical Engineering, Faculty of Engineering, Universiti Teknologi Brunei, Bandar Seri Begawan, BE1410, Brunei Darussalam; Department of Biosciences, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Chennai, India.
| | - Waqas Amhad
- Institute of Fundamental and Frontier Sciences, University of Electonic Science and Technology of China, Chengdu, 610054 China
| | - S Z M Shamshuddin
- Chemistry Research Laboratory, HMS Institute of Technology, Tumakuru, 572104, Karnataka, India
| | - Isam H Aljundi
- Interdisciplinary Research Center for Membranes and Water Security (IRC-MWS), King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia; Chemical Engineering Department, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia
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Majumder A, Pulhani AK, Ghosh A, Singh P, Maiti N. Need for enrichment of lutetium isotope and design of a laser based separator module. Appl Radiat Isot 2023; 202:111038. [PMID: 37812857 DOI: 10.1016/j.apradiso.2023.111038] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 11/16/2022] [Revised: 09/21/2023] [Accepted: 09/21/2023] [Indexed: 10/11/2023]
Abstract
Lutetium-177 radio-pharmaceutical has become an important theranostic candidate in cancer treatment. Its availability from bench-to-bed requires strategic implementation of isotope-enrichment, neutron-irradiation and radio-chemical techniques. In this paper, the need for enrichment of lutetium-176 is emphasized by estimating specific activity of lutetium-177 as a function of enrichment percentage for typical neutron flux available at Dhruva reactor, India. A novel Atomic Vapour Laser Isotope Separation (AVLIS) module for lutetium-176 enrichment is designed to meet the above requirement. The paper documents its characteristics and production estimates. The design is carried out after critical assessment and evaluation of available AVLIS-infrastructure in the country. Outline of lutetium-177 enrichment, capable of producing non-carrier-added lutetium is also provided. This work concludes that India has taken a step forward towards self-reliance (Atmanirbhar Bharat) in securing the supply chain of lutetium-177.
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Affiliation(s)
- A Majumder
- Laser and Plasma Technology Division, Bhabha Atomic Research Centre, Mumbai, 400085, India.
| | - A K Pulhani
- Laser and Plasma Technology Division, Bhabha Atomic Research Centre, Mumbai, 400085, India
| | - A Ghosh
- Laser and Plasma Technology Division, Bhabha Atomic Research Centre, Mumbai, 400085, India; Homi Bhabha National Institute, Mumbai, 400085, India
| | - P Singh
- Homi Bhabha National Institute, Mumbai, 400085, India
| | - N Maiti
- Laser and Plasma Technology Division, Bhabha Atomic Research Centre, Mumbai, 400085, India; Homi Bhabha National Institute, Mumbai, 400085, India
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Jain M, Majumder A, Gupta AK, Ghosal PS. Application of a new baffled horizontal flow constructed wetland-filter unit (BHFCW-FU) for treatment and reuse of petrochemical industry wastewater. J Environ Manage 2023; 325:116443. [PMID: 36228396 DOI: 10.1016/j.jenvman.2022.116443] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [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: 07/10/2022] [Revised: 09/19/2022] [Accepted: 10/02/2022] [Indexed: 06/16/2023]
Abstract
The shortage of water resources and generation of large quantum of wastewater has posed a significant concern to the environment and public health. Recent research on wastewater treatment has started to focus on reusing wastewater for different activities to reduce the stress on natural water resources. Constructed wetland (CWs) is a low-cost wastewater treatment option. However, some drawbacks include large areal requirements and the need for tertiary treatment units for reusable effluent. In this study, a novel composite baffled horizontal flow CW filter unit (BHFCW-FU) was developed to overcome the drawbacks of the conventional CW. The BHFCW-FU planted with Chrysopogon zizanioides provided a nine times longer flow path, and the adjoined variable depth dual media filter reduced the total area requirement and served as a polishing unit. On average, the BHFCW-FU with horizontal sub-surface flow regime could efficiently remove around 93.93%, 87.20%, and 66.25% of turbidity, phenol, and COD, respectively, from real petrochemical wastewater (initial turbidity: 29.6 NTU, phenol: 4.52 mg/L, and COD: 381 mg/L) and rendered the effluent quality reusable for irrigation, industrial, and other environmental purposes. In synthetic wastewater (initial turbidity: 754 NTU, phenol: 10.87 mg/L, and COD: 1691 mg/L), the removal efficiency of turbidity, phenol, and COD were 99.50%, 93.73%, and 87.05%, respectively. In-depth substrate characterization was done to study the removal mechanism. The developed BHFCW-FU required less space and maintenance, provided reusable effluent, and overcame the drawbacks of conventional CWs. Hence, it may show immense potential as an effective wastewater treatment.
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Affiliation(s)
- Mahak Jain
- School of Water Resources, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India.
| | - Abhradeep Majumder
- School of Environmental Science and Engineering, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India.
| | - Ashok Kumar Gupta
- Environmental Engineering Division, Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India.
| | - Partha Sarathi Ghosal
- School of Water Resources, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India.
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Majumder A, Gupta AK, Sillanpää M. Insights into kinetics of photocatalytic degradation of neurotoxic carbamazepine using magnetically separable mesoporous Fe3O4 modified Al-doped ZnO: Delineating the degradation pathway, toxicity analysis and application in real hospital wastewater. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129250] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Kushner BS, Holden T, Han B, Sehnert M, Majumder A, Blatnik JA, Holden SE. Randomized control trial evaluating the use of a shared decision-making aid for older ventral hernia patients in the Geriatric Assessment and Medical Preoperative Screening (GrAMPS) Program. Hernia 2022; 26:901-909. [PMID: 34686942 DOI: 10.1007/s10029-021-02524-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [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: 08/19/2021] [Accepted: 10/04/2021] [Indexed: 12/19/2022]
Abstract
PURPOSE Shared decision making (SDM) is ideally suited to abdominal wall surgery in older adults given the breadth of decision making required by the hernia surgeon and the impact on quality of life (QOL) by various treatment options. Given the paucity of literature surrounding SDM in hernia patients, the feasibility of a novel, formalized SDM aid/tool was evaluated in a pilot randomized trial. METHODS Patients 60 years or older with a diagnosed ventral hernia were prospectively randomized at an academic hernia center. In the experimental arm, a novel SDM tool, based on the SHARE Approach, guided the consultation. Previously validated SDM assessments and patient's hernia knowledge retention was measured. RESULTS Eighteen (18) patients were randomized (9 control and 9 experimental). Cohorts were well matched in age (p = 0.51), comorbidities (Charlson Comorbidity Score: p = 0.43) and frailty (mFI-11: p = 0.19; Risk Analysis Index: p = 0.33). Consultation time was 11 min longer in the experimental cohort (p < 0.01). There was a trend towards better Decisional Conflict Scores in the experimental group (p = 0.25) and the experimental cohort had improved post-visit retained hernia knowledge (p < 0.01). All patients in the experimental arm (100%) enjoyed working through the SDM aid/tool and felt it was a worthwhile exercise. CONCLUSION Incorporating a formalized SDM tool into a busy hernia surgical practice is feasible and well received by patients. In addition, early results suggest it improves retention of basic hernia knowledge and may reduce patient's decisional conflict. Next steps include condensing the SDM tool to enhance efficiency within the clinic and beginning a large, randomized control trial.
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Affiliation(s)
- B S Kushner
- Department of Surgery, Washington University School of Medicine, 660 South Euclid Avenue, Campus Box 8109, Saint Louis, MO, 63110, USA.
| | - T Holden
- Department of Medicine, Division of Geriatrics and Nutritional Science, Washington University School of Medicine, 660 South Euclid Avenue, Campus Box 8109, Saint Louis, MO, 63110, USA
| | - B Han
- Department of Surgery, Washington University School of Medicine, 660 South Euclid Avenue, Campus Box 8109, Saint Louis, MO, 63110, USA
| | - M Sehnert
- Department of Surgery, Washington University School of Medicine, 660 South Euclid Avenue, Campus Box 8109, Saint Louis, MO, 63110, USA
| | - A Majumder
- Department of Surgery, Washington University School of Medicine, 660 South Euclid Avenue, Campus Box 8109, Saint Louis, MO, 63110, USA
| | - J A Blatnik
- Department of Surgery, Washington University School of Medicine, 660 South Euclid Avenue, Campus Box 8109, Saint Louis, MO, 63110, USA
| | - S E Holden
- Department of Surgery, Washington University School of Medicine, 660 South Euclid Avenue, Campus Box 8109, Saint Louis, MO, 63110, USA
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Parida VK, Sikarwar D, Majumder A, Gupta AK. An assessment of hospital wastewater and biomedical waste generation, existing legislations, risk assessment, treatment processes, and scenario during COVID-19. J Environ Manage 2022; 308:114609. [PMID: 35101807 PMCID: PMC8789570 DOI: 10.1016/j.jenvman.2022.114609] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [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: 12/05/2021] [Revised: 01/23/2022] [Accepted: 01/24/2022] [Indexed: 05/23/2023]
Abstract
Hospitals release significant quantities of wastewater (HWW) and biomedical waste (BMW), which hosts a wide range of contaminants that can adversely affect the environment if left untreated. The COVID-19 outbreak has further increased hospital waste generation over the past two years. In this context, a thorough literature study was carried out to reveal the negative implications of untreated hospital waste and delineate the proper ways to handle them. Conventional treatment methods can remove only 50%-70% of the emerging contaminants (ECs) present in the HWW. Still, many countries have not implemented suitable treatment methods to treat the HWW in-situ. This review presents an overview of worldwide HWW generation, regulations, and guidelines on HWW management and highlights the various treatment techniques for efficiently removing ECs from HWW. When combined with advanced oxidation processes, biological or physical treatment processes could remove around 90% of ECs. Analgesics were found to be more easily removed than antibiotics, β-blockers, and X-ray contrast media. The different environmental implications of BMW have also been highlighted. Mishandling of BMW can spread infections, deadly diseases, and hazardous waste into the environment. Hence, the different steps associated with collection to final disposal of BMW have been delineated to minimize the associated health risks. The paper circumscribes the multiple aspects of efficient hospital waste management and may be instrumental during the COVID-19 pandemic when the waste generation from all hospitals worldwide has increased significantly.
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Affiliation(s)
- Vishal Kumar Parida
- School of Environmental Science and Engineering, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India
| | - Divyanshu Sikarwar
- Environmental Engineering Division, Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India
| | - Abhradeep Majumder
- School of Environmental Science and Engineering, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India
| | - Ashok Kumar Gupta
- Environmental Engineering Division, Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India.
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Majumder A, Saidulu D, Gupta AK, Ghosal PS. Predicting the trend and utility of different photocatalysts for degradation of pharmaceutically active compounds: A special emphasis on photocatalytic materials, modifications, and performance comparison. J Environ Manage 2021; 293:112858. [PMID: 34052613 DOI: 10.1016/j.jenvman.2021.112858] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [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: 02/11/2021] [Revised: 05/01/2021] [Accepted: 05/19/2021] [Indexed: 06/12/2023]
Abstract
The rapid rise in the healthcare sector has led to an increase in pharmaceutically active compounds (PhACs) in different aqueous bodies. The toxicity of the PhACs and their ability to persist after conventional treatment processes have escalated research in the field of photocatalytic treatment. Although different photocatalysts have been successful in degrading PhACs, their inherent drawbacks have severely limited their application on a large scale. A substantial amount of research has been aimed at overcoming the high cost of the photocatalytic material, low quantum yield, the formation of toxic end products, etc. Hence, to further research in this field, researchers must have a fair idea of the current trends in the application of different photocatalysts. In this article, the trends in the use of various photocatalysts for the removal of different PhACs have been circumscribed. The performance of different groups of photocatalysts to degrade PhACs from synthetic and real wastewater has been addressed. The drawbacks and advantages of these materials have been compared, and their future in the field of PhACs removal has been predicted using S-curve analysis. Zinc and titanium-based photocatalysts were efficient under UV irradiation, while bismuth and graphene-based materials exhibited exemplary performance in visible light. However, iron-based compounds were found to have the most promising future, which may be because of their magnetic properties, easy availability, low bandgap, etc. Different modification techniques, such as morphology modification, doping, heterojunction formation, etc., have also been discussed. This study may help researchers to clarify the current research status in the field of photocatalytic treatment of PhACs and provide valuable information for future research.
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Affiliation(s)
- Abhradeep Majumder
- School of Environmental Science and Engineering, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India
| | - Duduku Saidulu
- Environmental Engineering Division, Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur, 721 302, India
| | - Ashok Kumar Gupta
- Environmental Engineering Division, Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur, 721 302, India.
| | - Partha Sarathi Ghosal
- School of Water Resources, Indian Institute of Technology Kharagpur, Kharagpur, 721 302, India
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Everett D, Ke W, Paquet JF, Vujanovic G, Bass SA, Du L, Gale C, Heffernan M, Heinz U, Liyanage D, Luzum M, Majumder A, McNelis M, Shen C, Xu Y, Angerami A, Cao S, Chen Y, Coleman J, Cunqueiro L, Dai T, Ehlers R, Elfner H, Fan W, Fries RJ, Garza F, He Y, Jacak BV, Jacobs PM, Jeon S, Kim B, Kordell M, Kumar A, Mak S, Mulligan J, Nattrass C, Oliinychenko D, Park C, Putschke JH, Roland G, Schenke B, Schwiebert L, Silva A, Sirimanna C, Soltz RA, Tachibana Y, Wang XN, Wolpert RL. Phenomenological Constraints on the Transport Properties of QCD Matter with Data-Driven Model Averaging. Phys Rev Lett 2021; 126:242301. [PMID: 34213947 DOI: 10.1103/physrevlett.126.242301] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 03/05/2021] [Accepted: 05/27/2021] [Indexed: 06/13/2023]
Abstract
Using combined data from the Relativistic Heavy Ion and Large Hadron Colliders, we constrain the shear and bulk viscosities of quark-gluon plasma (QGP) at temperatures of ∼150-350 MeV. We use Bayesian inference to translate experimental and theoretical uncertainties into probabilistic constraints for the viscosities. With Bayesian model averaging we propagate an estimate of the model uncertainty generated by the transition from hydrodynamics to hadron transport in the plasma's final evolution stage, providing the most reliable phenomenological constraints to date on the QGP viscosities.
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Affiliation(s)
- D Everett
- Department of Physics, The Ohio State University, Columbus, Ohio 43210, USA
| | - W Ke
- Department of Physics, University of California, Berkeley, California 94270, USA
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94270, USA
| | - J-F Paquet
- Department of Physics, Duke University, Durham, North Carolina 27708, USA
| | - G Vujanovic
- Department of Physics and Astronomy, Wayne State University, Detroit, Michigan 48201, USA
| | - S A Bass
- Department of Physics, Duke University, Durham, North Carolina 27708, USA
| | - L Du
- Department of Physics, The Ohio State University, Columbus, Ohio 43210, USA
| | - C Gale
- Department of Physics, McGill University, Montréal, Quebec City H3A 2T8, Canada
| | - M Heffernan
- Department of Physics, McGill University, Montréal, Quebec City H3A 2T8, Canada
| | - U Heinz
- Department of Physics, The Ohio State University, Columbus, Ohio 43210, USA
| | - D Liyanage
- Department of Physics, The Ohio State University, Columbus, Ohio 43210, USA
| | - M Luzum
- Instituto de Fìsica, Universidade de São Paulo, C.P. 66318, 05315-970 São Paulo, SP, Brazil
| | - A Majumder
- Department of Physics and Astronomy, Wayne State University, Detroit, Michigan 48201, USA
| | - M McNelis
- Department of Physics, The Ohio State University, Columbus, Ohio 43210, USA
| | - C Shen
- Department of Physics and Astronomy, Wayne State University, Detroit, Michigan 48201, USA
- RIKEN BNL Research Center, Brookhaven National Laboratory, Upton, New York 11973, USA
| | - Y Xu
- Department of Physics, Duke University, Durham, North Carolina 27708, USA
| | - A Angerami
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - S Cao
- Department of Physics and Astronomy, Wayne State University, Detroit, Michigan 48201, USA
| | - Y Chen
- Laboratory for Nuclear Science, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
- Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - J Coleman
- Department of Statistical Science, Duke University, Durham, North Carolina 27708, USA
| | - L Cunqueiro
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, USA
| | - T Dai
- Department of Physics, Duke University, Durham, North Carolina 27708, USA
| | - R Ehlers
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, USA
| | - H Elfner
- GSI Helmholtzzentrum für Schwerionenforschung, 64291 Darmstadt, Germany
- Institute for Theoretical Physics, Goethe University, 60438 Frankfurt am Main, Germany
- Frankfurt Institute for Advanced Studies, 60438 Frankfurt am Main, Germany
| | - W Fan
- Department of Physics, Duke University, Durham, North Carolina 27708, USA
| | - R J Fries
- Cyclotron Institute, Texas A&M University, College Station, Texas 77843, USA
- Department of Physics and Astronomy, Texas A&M University, College Station, Texas 77843, USA
| | - F Garza
- Cyclotron Institute, Texas A&M University, College Station, Texas 77843, USA
- Department of Physics and Astronomy, Texas A&M University, College Station, Texas 77843, USA
| | - Y He
- Key Laboratory of Quark and Lepton Physics (MOE) and Institute of Particle Physics, Central China Normal University, Wuhan 430079, China
| | - B V Jacak
- Department of Physics, University of California, Berkeley, California 94270, USA
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94270, USA
| | - P M Jacobs
- Department of Physics, University of California, Berkeley, California 94270, USA
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94270, USA
| | - S Jeon
- Department of Physics, McGill University, Montréal, Quebec City H3A 2T8, Canada
| | - B Kim
- Cyclotron Institute, Texas A&M University, College Station, Texas 77843, USA
- Department of Physics and Astronomy, Texas A&M University, College Station, Texas 77843, USA
| | - M Kordell
- Cyclotron Institute, Texas A&M University, College Station, Texas 77843, USA
- Department of Physics and Astronomy, Texas A&M University, College Station, Texas 77843, USA
| | - A Kumar
- Department of Physics and Astronomy, Wayne State University, Detroit, Michigan 48201, USA
| | - S Mak
- Department of Statistical Science, Duke University, Durham, North Carolina 27708, USA
| | - J Mulligan
- Department of Physics, University of California, Berkeley, California 94270, USA
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94270, USA
| | - C Nattrass
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA
| | - D Oliinychenko
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94270, USA
| | - C Park
- Department of Physics, McGill University, Montréal, Quebec City H3A 2T8, Canada
| | - J H Putschke
- Department of Physics and Astronomy, Wayne State University, Detroit, Michigan 48201, USA
| | - G Roland
- Laboratory for Nuclear Science, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
- Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - B Schenke
- Physics Department, Brookhaven National Laboratory, Upton, New York 11973, USA
| | - L Schwiebert
- Department of Computer Science, Wayne State University, Detroit, Michigan 48202, USA
| | - A Silva
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA
| | - C Sirimanna
- Department of Physics and Astronomy, Wayne State University, Detroit, Michigan 48201, USA
| | - R A Soltz
- Department of Physics and Astronomy, Wayne State University, Detroit, Michigan 48201, USA
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - Y Tachibana
- Department of Physics and Astronomy, Wayne State University, Detroit, Michigan 48201, USA
| | - X-N Wang
- Department of Physics, University of California, Berkeley, California 94270, USA
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94270, USA
- Key Laboratory of Quark and Lepton Physics (MOE) and Institute of Particle Physics, Central China Normal University, Wuhan 430079, China
| | - R L Wolpert
- Department of Statistical Science, Duke University, Durham, North Carolina 27708, USA
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11
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Abstract
Donor-type aplasia (DTA) is a condition where an individual continues to be aplastic even after a successful engraftment of a hematopoeitic stem cell transplant with a majority of donor type cells in the bone marrow. This entity has been seen with varying frequency around the world, especially in Southeast Asia. However, its incidence in the Indian subcontinent remains fairly low. Here is a case of a 17-year-old child with DTA who had a 89% population of donor cells after a successful transplant and presented with recurrent severe aplastic anemia later. The patient eventually succumbed to his condition before a second transplant could be performed. The awareness about the seriousness of this relatively rare condition, therefore, needs to be emphasized.
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Affiliation(s)
- A Majumder
- Department of Pathology, ABVIMS and Dr. RML Hospital, New Delhi, India
| | - S Misra
- Department of Pathology, ABVIMS and Dr. RML Hospital, New Delhi, India
| | - V Kumar
- Department of Pathology, ABVIMS and Dr. RML Hospital, New Delhi, India
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12
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Gupta B, Ambekar RS, Tromer RM, Ghosal PS, Sinha R, Majumder A, Kumbhakar P, Ajayan PM, Galvao DS, Gupta AK, Tiwary CS. Development of a schwarzite-based moving bed 3D printed water treatment system for nanoplastic remediation. RSC Adv 2021; 11:19788-19796. [PMID: 35479224 PMCID: PMC9033670 DOI: 10.1039/d1ra03097c] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Accepted: 05/20/2021] [Indexed: 01/22/2023] Open
Abstract
The impact of micro and nanoplastic debris on our aquatic ecosystem is among the most prominent environmental challenges we face today. In addition, nanoplastics create significant concern for environmentalists because of their toxicity and difficulty in separation and removal. Here we report the development of a 3D printed moving bed water filter (M-3DPWF), which can perform as an efficient nanoplastic scavenger. The enhanced separation of the nanoplastics happens due to the creation of a charged filter material that traps the more surface charged nanoparticles selectively. Synthetic contaminated water from polycarbonate waste has been tested with the filter, and enhanced nanoplastic removal has been achieved. The proposed filtration mechanism of surface-charge based water cleaning is further validated using density function theory (semi-empirical) based simulation. The filter has also shown good structural and mechanical stability in both static and dynamic water conditions. The field suitability of the novel treatment system has also been confirmed using water from various sources, such as sea, river, and pond. Our results suggest that the newly developed water filter can be used for the removal of floating nanoparticles in water as a robust advanced treatment system. The impact of micro and nanoplastic debris on our aquatic ecosystem is among the most prominent environmental challenges we face today.![]()
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Affiliation(s)
- Bramha Gupta
- School of Water Resources, Indian Institute of Technology Kharagpur Kharagpur 721302 India
| | - Rushikesh S Ambekar
- Metallurgical and Materials Engineering, Indian Institute of Technology Kharagpur Kharagpur 721302 India
| | - Raphael M Tromer
- Applied Physics Department, State University of Campinas - UNICAMP 13083-859-Campinas SP Brazil
| | - Partha Sarathi Ghosal
- School of Water Resources, Indian Institute of Technology Kharagpur Kharagpur 721302 India
| | - Rupal Sinha
- School of Water Resources, Indian Institute of Technology Kharagpur Kharagpur 721302 India
| | - Abhradeep Majumder
- School of Environmental Science and Engineering, Indian Institute of Technology Kharagpur Kharagpur 721302 India
| | - Partha Kumbhakar
- Metallurgical and Materials Engineering, Indian Institute of Technology Kharagpur Kharagpur 721302 India
| | - P M Ajayan
- Department of Materials Science and Nanoengineering, Smalley-Curl Institute, Rice University Houston Texas 77005 USA
| | - Douglas S Galvao
- Applied Physics Department, State University of Campinas - UNICAMP 13083-859-Campinas SP Brazil
| | - Ashok Kumar Gupta
- Environmental Engineering Division, Department of Civil Engineering, Indian Institute of Technology Kharagpur Kharagpur 721302 India
| | - Chandra Sekhar Tiwary
- Metallurgical and Materials Engineering, Indian Institute of Technology Kharagpur Kharagpur 721302 India
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13
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Majumder A, Gupta AK, Ghosal PS, Varma M. A review on hospital wastewater treatment: A special emphasis on occurrence and removal of pharmaceutically active compounds, resistant microorganisms, and SARS-CoV-2. J Environ Chem Eng 2021; 9:104812. [PMID: 33251108 PMCID: PMC7680650 DOI: 10.1016/j.jece.2020.104812] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 11/10/2020] [Accepted: 11/18/2020] [Indexed: 05/05/2023]
Abstract
The hospital wastewater imposes a potent threat to the security of human health concerning its high vulnerability towards the outbreak of several diseases. Furthermore, the outbreak of COVID-19 pandemic demanded a global attention towards monitoring viruses and other infectious pathogens in hospital wastewater and their removal. Apart from that, the presence of various recalcitrant organics, pharmaceutically active compounds (PhACs), etc. imparts a complex pollution load to water resources and ecosystem. In this review, an insight into the occurrence, persistence and removal of drug-resistant microorganisms and infectious viruses as well as other micro-pollutants have been documented. The performance of various pilot/full-scale studies have been evaluated in terms of removal of biochemical oxygen demand (BOD), chemical oxygen demand (COD), total suspended solids (TSS), PhACs, pathogens, etc. It was found that many biological processes, such as membrane bioreactor, activated sludge process, constructed wetlands, etc. provided more than 80% removal of BOD, COD, TSS, etc. However, the removal of several recalcitrant organic pollutants are less responsive to those processes and demands the application of tertiary treatments, such as adsorption, ozone treatment, UV treatment, etc. Antibiotic-resistant microorganisms, viruses were found to be persistent even after the treatment of hospital wastewater, and high dose of chlorination or UV treatment was required to inactivate them. This article circumscribes the various emerging technologies, which have been used to treat PhACs and pathogens. The present review also emphasized the global concern of the presence of SARS-CoV-2 RNA in hospital wastewater and its removal by the existing treatment facilities.
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Affiliation(s)
- Abhradeep Majumder
- School of Environmental Science and Engineering, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Ashok Kumar Gupta
- Environmental Engineering Division, Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Partha Sarathi Ghosal
- School of Water Resources, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Mahesh Varma
- Environmental Engineering Division, Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
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14
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Varma M, Gupta AK, Ghosal PS, Majumder A. A review on performance of constructed wetlands in tropical and cold climate: Insights of mechanism, role of influencing factors, and system modification in low temperature. Sci Total Environ 2021; 755:142540. [PMID: 33038812 DOI: 10.1016/j.scitotenv.2020.142540] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [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: 07/21/2020] [Revised: 09/11/2020] [Accepted: 09/19/2020] [Indexed: 05/12/2023]
Abstract
Constructed wetlands (CWs) are one of the most promising and sustainable alternatives for wastewater treatment that are being successfully implemented in several countries, especially in tropical and sub-tropical regions. The predominant mechanisms of removal of contaminants in CWs are microbial degradation, phytodegradation, phytoextraction, filtration, sedimentation, and adsorption, etc. Vertical flow subsurface CWs and hybrid CWs demonstrated promising results in terms of TN, BOD, and COD removal, while horizontal flow subsurface CWs were proficient in removal of TP. The performance of the CWs depends upon a various factors, such as hydraulic loading rate, pH, dissolved oxygen, temperature, etc. Among these, low temperature had the most antagonistic effect on the performance of the CWs because freezing ambient temperature lead to ice formation, hydraulic imperfections, malfunctioning of biotic and abiotic components, etc. Over the past three decades, thousands of studies have been conducted involving treatment of wastewater using CWs, among which only few have addressed the issues and concerns of cold climate representing a significant research gap in this field. Furthermore, the performance of CWs in terms of TN, TP, and COD removal was significantly lower in cold climates than that in tropical and sub-tropical climates. In order to find suitable remedies to overcome the challenges faced in cold climate various modifications, such as incorporating greenhouse structure, providing insulating materials, bio-augmentation, identification of suitable macrophytes, etc., in around 20 different scenarios have been studied. Greenhouse construction led to 20% increase in removal of TN and COD, while plant collocation accounted for up to 18% increase in the removal of COD. Artificial aeration, insulation and bio-augmentation also enhanced the performance of the CWs in low temperatures.
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Affiliation(s)
- Mahesh Varma
- Environmental Engineering Division, Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur 721 302, India.
| | - Ashok Kumar Gupta
- Environmental Engineering Division, Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur 721 302, India.
| | - Partha Sarathi Ghosal
- School of Water Resources, Indian Institute of Technology Kharagpur, Kharagpur 721 302, India.
| | - Abhradeep Majumder
- School of Environmental Science and Engineering, Indian Institute of Technology Kharagpur, Kharagpur 721302, India.
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15
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Jain M, Majumder A, Ghosal PS, Gupta AK. A review on treatment of petroleum refinery and petrochemical plant wastewater: A special emphasis on constructed wetlands. J Environ Manage 2020; 272:111057. [PMID: 32854876 DOI: 10.1016/j.jenvman.2020.111057] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [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: 05/02/2020] [Revised: 06/29/2020] [Accepted: 07/03/2020] [Indexed: 05/12/2023]
Abstract
Petroleum refinery and petrochemical plants (PRPP) are one of the major contributors to toxic and recalcitrant organic polluted water, which has become a significant concern in the field of environmental engineering. Several contaminants of PRPP wastewater are genotoxic, phytotoxic, and carcinogenic, thereby imposing detrimental effects on the environment. Many biological processes were able to achieve chemical oxygen demand (COD) removal ranging from 60% to 90%, and their retention time usually ranged from 10 to 100 days. These methods were not efficient in removing the petroleum hydrocarbons present in PRPP wastewater and produced a significant amount of oily sludge. Advanced oxidation processes achieved the same COD removal efficiency in a few hours and were able to break down recalcitrant organic compounds. However, the associated high cost is a significant drawback concerning PRPP wastewater treatment. In this context, constructed wetlands (CWs) could effectively remove the recalcitrant organic fraction of the wastewater because of the various inherent mechanisms involved, such as phytodegradation, rhizofiltration, microbial degradation, sorption, etc. In this review, we found that CWs were efficient in handling large quantities of high strength PRPP wastewater exhibiting average COD removal of around 80%. Horizontal subsurface flow CWs exhibited better performance than the free surface and floating CWs. These systems could also effectively remove heavy oil and recalcitrant organic compounds, with an average removal efficiency exceeding 80% and 90%, respectively. Furthermore, modifications by varying the aeration system, purposeful hybridization, and identifying the suitable substrate led to the enhanced performance of the systems.
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Affiliation(s)
- Mahak Jain
- School of Water Resources, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India.
| | - Abhradeep Majumder
- School of Environmental Science and Engineering, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India.
| | - Partha Sarathi Ghosal
- School of Water Resources, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India.
| | - Ashok Kumar Gupta
- Environmental Engineering Division, Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India.
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16
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Majumder A, Gupta B, Gupta AK. Pharmaceutically active compounds in aqueous environment: A status, toxicity and insights of remediation. Environ Res 2019; 176:108542. [PMID: 31387068 DOI: 10.1016/j.envres.2019.108542] [Citation(s) in RCA: 81] [Impact Index Per Article: 16.2] [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: 01/29/2019] [Revised: 06/12/2019] [Accepted: 06/17/2019] [Indexed: 05/22/2023]
Abstract
Pharmaceutically active compounds (PhACs) have pernicious effects on all kinds of life forms because of their toxicological effects and are found profoundly in various wastewater treatment plant influents, hospital effluents, and surface waters. The concentrations of different pharmaceuticals were found in alarmingly high concentrations in various parts of the globe, and it was also observed that the concentration of PhACs present in the water could be eventually related to the socio-economic conditions and climate of the region. Drinking water equivalent limit for each PhAC has been calculated and compared with the occurrence data from various continents. Since these compounds are recalcitrant towards conventional treatment methods, while advanced oxidation processes (AOPs) have shown better efficiency in degrading these PhACs. The performance of the AOPs have been evaluated based on percentage removal, time, and electrical energy consumed to degrade different classes of PhACs. Ozone based AOPs were found to be favorable because of their low treatment time, low cost, and high efficiency. However, complete degradation cannot be achieved by these processes, and various transformation products are formed, which may be more toxic than the parent compounds. The various transformation products formed from various PhACs during treatment have been highlighted. Significant stress has been given on the role of various process parameters, water matrix, oxidizing radicals, and the mechanism of degradation. Presence of organic compounds, nitrate, and phosphate usually hinders the degradation process, while chlorine and sulfate showed a positive effect. The role of individual oxidizing radicals, interfering ions, and pH demonstrated dissimilar effects on different groups of PhACs.
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Affiliation(s)
- Abhradeep Majumder
- School of Environmental Science and Engineering, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India.
| | - Bramha Gupta
- School of Water Resources, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India.
| | - Ashok Kumar Gupta
- Environmental Engineering Division, Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India.
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17
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Mundhara N, Panda D, Majumder A. PO-027 Methyl-β-cyclodextrin intensifies the effect of microtubule-targeting agents by increasing their intracellular drug accumulation. ESMO Open 2018. [DOI: 10.1136/esmoopen-2018-eacr25.72] [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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18
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Liu L, Petro C, Majumder A, Fayezizadeh M, Anderson J, Novitsky YW. The use of Vicryl mesh in a porcine model to assess its safety as an adjunct to posterior fascial closure during retromuscular mesh placement. Hernia 2016; 20:289-95. [PMID: 26886013 DOI: 10.1007/s10029-016-1469-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [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: 09/12/2014] [Accepted: 02/05/2016] [Indexed: 11/28/2022]
Abstract
BACKGROUND Posterior component separation has become a common approach to complex abdominal wall reconstructions. This technique includes creation of an extraperitoneal retromuscular space for subsequent large synthetic mesh reinforcement. In certain cases, when complete restoration of "posterior" layer is precluded by significant tissue loss/damage, one proposed strategy is to replace the posterior fascia with an absorbable synthetic polyglactin (Vicryl) mesh. However, the safety of this strategy to prevent mesh-related visceral complication is unknown. Herein, we aimed to characterize mesh-viscera adhesion profiles and host tissue response of synthetic mesh either exposed directly to the viscera, or protected with Vicryl mesh. METHODS Using adult Yorkshire pigs, 5 × 5 cm pieces of mesh were secured to the intact peritoneum in each of the four quadrants (n = 6 pigs, 24 mesh samples). The study groups were Vicryl (V), Marlex (M), Softmesh (S), Marlex + Vicryl construct (MV), Softmesh + Vicryl construct (SV). The self-made composite meshes were then implanted with the Vicryl side facing the exposed viscera. The pigs were survived for 60 days. At necropsy, grossly, the extent and tenacity of visceral adhesions were evaluated using established scales. Histologically, all specimens for fibrous encapsulation on the visceral surface of the mesh were reviewed by an experienced pathologist blind to meshes used. RESULTS At necropsy, all Vicryl meshes were completely resorbed. The mean adhesion and tenacity scores for M and MV were 1.8 and 1.1 (P > 0.05), 2.0 and 1.5 (P > 0.05), respectively; while the mean adhesion extent scores and tenacity scores for S and SV were 2.0 and 1.2 (P > 0.05), 2.0 and 1.7 (P > 0.05). No significant difference in adhesion extent and tenacity was observed between Synthetic and Vicryl composite mesh groups. Histologically, Marlex + Vicryl mesh and Softmesh + Vicryl mesh constructs had thicker fibrous capsules than the corresponding unprotected Marlex and Soft mesh implants. Furthermore, visceral adhesions in the composite groups were noted to be to the fibrous capsule and not synthetic mesh itself. CONCLUSION Utilization of the absorbable polyglactin (Vicryl) mesh as a separating layer between a synthetic mesh and intestines, did not reduce adhesions across various mesh types and composites. Histologically, however, a thick fibrous capsule replaced the Vicryl mesh and may be an important layer to prevent intestinal erosion into retromuscular synthetic meshes.
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Affiliation(s)
- L Liu
- Department of Surgery, Case Comprehensive Hernia Center, University Hospitals Case Medical Center, Case Western Reserve University, 11100 Euclid Avenue, Cleveland, OH, 44106, USA.,Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - C Petro
- Department of Surgery, Case Comprehensive Hernia Center, University Hospitals Case Medical Center, Case Western Reserve University, 11100 Euclid Avenue, Cleveland, OH, 44106, USA
| | - A Majumder
- Department of Surgery, Case Comprehensive Hernia Center, University Hospitals Case Medical Center, Case Western Reserve University, 11100 Euclid Avenue, Cleveland, OH, 44106, USA
| | - M Fayezizadeh
- Department of Surgery, Case Comprehensive Hernia Center, University Hospitals Case Medical Center, Case Western Reserve University, 11100 Euclid Avenue, Cleveland, OH, 44106, USA
| | - J Anderson
- Department of Pathology, University Hospitals Case Medical Center, Cleveland, OH, USA
| | - Y W Novitsky
- Department of Surgery, Case Comprehensive Hernia Center, University Hospitals Case Medical Center, Case Western Reserve University, 11100 Euclid Avenue, Cleveland, OH, 44106, USA.
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19
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Novitsky Y, Fayezizadeh M, Majumder A, Yee S, Petro C, Orenstein S, Woeste G, Reinisch A, Bechstein WO, Rosen M, Carbonell A, Cobb W, Bauer J, Selzer D, Chao J, Harmaty M, Poulose B, Matthews B, Goldblatt M, Jacobsen G, Rosman C, Hansson B, Prabhu A, Fathi A, Skipworth J, Younis I, Floyd D, Shankar A, Olmi S, Cesana G, Ciccarese F, Uccelli M, Carrieri D, Castello G, Legnani G, Lyo V, Irwin C, Xu X, Harris H, Zuvela M, Galun D, Petrovic J, Palibrk I, Koncar I, Basaric D, Tian W, Fei Y, Pittman M, Jones E, Schwartz J, Mikami D, Perrakis A, Knüttel D, Klein P, Croner RS, Hohenberger W, Perrakis E, Müller V, Grande M, Villa M, Lisi G, Esser A, De Sanctis F, Petrella G, Birolini C, Miranda JS, Tanaka EY, Utiyama EM, Rasslan S, Shi Y, Guo XB, Zhuo HQ, Li LP, Liu HJ, Bauder A, Gerety P, Epps G, Pannucci C, Fischer J, Kovach S. Incisional Hernia: Difficult Cases 2. Hernia 2015; 19 Suppl 1:S105-11. [PMID: 26518784 DOI: 10.1007/bf03355335] [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] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Y Novitsky
- Case Comprehensive Hernia Center, Cleveland, USA
| | | | - A Majumder
- Case Comprehensive Hernia Center, Cleveland, USA
| | - S Yee
- Case Comprehensive Hernia Center, Cleveland, USA
| | - C Petro
- Case Comprehensive Hernia Center, Cleveland, USA
| | - S Orenstein
- Case Comprehensive Hernia Center, Cleveland, USA
| | - G Woeste
- Department of Surgery, Goethe University, Frankfurt, Germany
| | - A Reinisch
- Department of Surgery, Goethe University, Frankfurt, Germany
| | - W O Bechstein
- Department of Surgery, Goethe University, Frankfurt, Germany
| | - M Rosen
- Cleveland Clinic Foundation, Cleveland, USA
| | | | | | | | | | | | | | | | | | | | | | | | | | | | - A Fathi
- Case Comprehensive Hernia Center, Cleveland, USA
| | - J Skipworth
- Hospital Complex Hernia Unit, Royal Free and University College London, London, UK
| | - I Younis
- Hospital Complex Hernia Unit, Royal Free and University College London, London, UK
| | - D Floyd
- Hospital Complex Hernia Unit, Royal Free and University College London, London, UK
| | - A Shankar
- Hospital Complex Hernia Unit, Royal Free and University College London, London, UK
| | - S Olmi
- School of General Surgery, University of Milan, Milan, Italy.,General and Oncologic Surgery Department, S. Marco Hospital, Zingonia, BG, Italy
| | - G Cesana
- School of General Surgery, University of Milan, Milan, Italy.,General and Oncologic Surgery Department, S. Marco Hospital, Zingonia, BG, Italy
| | - F Ciccarese
- School of General Surgery, University of Milan, Milan, Italy.,General and Oncologic Surgery Department, S. Marco Hospital, Zingonia, BG, Italy
| | - M Uccelli
- School of General Surgery, University of Milan, Milan, Italy.,General and Oncologic Surgery Department, S. Marco Hospital, Zingonia, BG, Italy
| | - D Carrieri
- General and Oncologic Surgery Department, S. Marco Hospital, Zingonia, BG, Italy
| | - G Castello
- General and Oncologic Surgery Department, S. Marco Hospital, Zingonia, BG, Italy
| | - G Legnani
- General and Oncologic Surgery Department, S. Marco Hospital, Zingonia, BG, Italy
| | - V Lyo
- Division of General Surgery, University of California San Francisco, San Francisco, USA
| | - C Irwin
- Division of Plastic & Reconstructive Surgery, University of California San Francisco, San Francisco, USA
| | - X Xu
- Division of Plastic & Reconstructive Surgery, University of California San Francisco, San Francisco, USA
| | - H Harris
- Division of General Surgery, University of California San Francisco, San Francisco, USA
| | - M Zuvela
- Clinical center of Serbia, University Clinic for Digestive Surgery, Belgrade, Serbia.,Medical School, University of Belgrade, Belgrade, Serbia
| | - D Galun
- Clinical center of Serbia, University Clinic for Digestive Surgery, Belgrade, Serbia.,Medical School, University of Belgrade, Belgrade, Serbia
| | - J Petrovic
- Clinical center of Serbia, University Clinic for Digestive Surgery, Belgrade, Serbia
| | - I Palibrk
- Medical School, University of Belgrade, Belgrade, Serbia.,Clinical center of Serbia, Clinic for vascular and endovascular surgery, Belgrade, Serbia
| | - I Koncar
- Clinical center of Serbia, University Clinic for Digestive Surgery, Belgrade, Serbia.,Medical School, University of Belgrade, Belgrade, Serbia
| | - D Basaric
- Clinical center of Serbia, University Clinic for Digestive Surgery, Belgrade, Serbia
| | - W Tian
- Department of General Surgery, 1st affiliated hospital of PLA general hospital, Beijing, China
| | | | - M Pittman
- The Ohio State University Medical Center, Columbus, USA
| | | | | | | | - A Perrakis
- Department of Surgery, University Hospital of Erlangen, Erlangen, Germany
| | - D Knüttel
- Department of Surgery, University Hospital of Erlangen, Erlangen, Germany
| | - P Klein
- Department of Surgery, University Hospital of Erlangen, Erlangen, Germany
| | - R S Croner
- Department of Surgery, University Hospital of Erlangen, Erlangen, Germany
| | - W Hohenberger
- Department of Surgery, University Hospital of Erlangen, Erlangen, Germany
| | - E Perrakis
- Department of Surgery, Omilos Iatrikoo Kentrou Athinon, Iatriko Kentro Peristeriou, Athens, Greece
| | - V Müller
- Department of Surgery, University Hospital of Erlangen, Erlangen, Germany
| | - M Grande
- University Hospital of Tor Vergata, Rome, Italy
| | - M Villa
- University Hospital of Tor Vergata, Rome, Italy
| | - G Lisi
- University Hospital of Tor Vergata, Rome, Italy
| | - A Esser
- University Hospital of Tor Vergata, Rome, Italy
| | | | - G Petrella
- University Hospital of Tor Vergata, Rome, Italy
| | - C Birolini
- Abdominal Wall and Hernia Surgery, University of São Paulo, School of Medicine, São Paulo, Brazil
| | - J S Miranda
- Abdominal Wall and Hernia Surgery, University of São Paulo, School of Medicine, São Paulo, Brazil
| | - E Y Tanaka
- Abdominal Wall and Hernia Surgery, University of São Paulo, School of Medicine, São Paulo, Brazil
| | - E M Utiyama
- Abdominal Wall and Hernia Surgery, University of São Paulo, School of Medicine, São Paulo, Brazil
| | - S Rasslan
- Abdominal Wall and Hernia Surgery, University of São Paulo, School of Medicine, São Paulo, Brazil
| | - Y Shi
- Department of Gastrointestinal Surgery, Provincial Hospital Affiliated to Shandong University, Jinan, China
| | | | | | | | | | - A Bauder
- Division of Plastic Surgery, University of Pennsylvania, Philadelphia, USA
| | - P Gerety
- Division of Plastic Surgery, University of Pennsylvania, Philadelphia, USA
| | - G Epps
- Division of Plastic Surgery, University of Pennsylvania, Philadelphia, USA
| | - C Pannucci
- Division of Plastic and Reconstructive Surgery, University of Utah, Salt Lake City, USA
| | - J Fischer
- Division of Plastic Surgery, University of Pennsylvania, Philadelphia, USA
| | - S Kovach
- Division of Plastic Surgery, University of Pennsylvania, Philadelphia, USA
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Rahman T, Rahman A, Majumder A. Immediate and in-hospital complications of percutaneous coronary intervention. Atherosclerosis 2015. [DOI: 10.1016/j.atherosclerosis.2015.04.1009] [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: 11/29/2022]
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Posielski NM, Yee ST, Majumder A, Orenstein SB, Prabhu AS, Novitsky YW. Repair of massive ventral hernias with “quilted” mesh. Hernia 2015; 19:465-72. [DOI: 10.1007/s10029-015-1375-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2014] [Accepted: 03/29/2015] [Indexed: 11/24/2022]
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Majumder A, Blatnik JA, Novitsky YW. Topic: Incisional Hernia — Parastomal. Hernia 2015; 19 Suppl 1:S355. [DOI: 10.1007/bf03355391] [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: 10/22/2022]
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Shahgaldi K, Hegner T, Da Silva C, Fukuyama A, Takeuchi M, Uema A, Kado Y, Nagata Y, Hayashi A, Otani K, Fukuda S, Yoshitani H, Otsuji Y, Morhy S, Lianza A, Afonso T, Oliveira W, Tavares G, Rodrigues A, Vieira M, Warth A, Deutsch A, Fischer C, Tezynska-Oniszk I, Turska-Kmiec A, Kawalec W, Dangel J, Maruszewski B, Bokiniec R, Burczynski P, Borszewska-Kornacka K, Ziolkowska L, Zuk M, Troshina A, Dzhalilova D, Poteshkina N, Hamitov F, Warita S, Kawasaki M, Tanaka R, Yagasaki H, Minatoguchi S, Wanatabe T, Ono K, Noda T, Wanatabe S, Minatoguchi S, Angelis A, Ageli K, Vlachopoulos C, Felekos I, Ioakimidis N, Aznaouridis K, Vaina S, Abdelrasoul M, Tsiamis E, Stefanadis C, Cameli M, Sparla S, D'ascenzi F, Fineschi M, Favilli R, Pierli C, Henein M, Mondillo S, Lindqvist P, Tossavainen E, Gonzalez M, Soderberg S, Henein M, Holmgren A, Strachinaru M, Catez E, Jousten I, Pavel O, Janssen C, Morissens M, Chatzistamatiou E, Moustakas G, Memo G, Konstantinidis D, Mpampatzeva Vagena I, Manakos K, Traxanas K, Vergi N, Feretou A, Kallikazaros I, Tsai WC, Sun YT, Lee WH, Yang LT, Liu YW, Lee CH, Li WT, Mizariene V, Bieseviciene M, Karaliute R, Verseckaite R, Vaskelyte J, Lesauskaite V, Chatzistamatiou E, Mpampatseva Vagena I, Manakos K, Moustakas G, Konstantinidis D, Memo G, Mitsakis O, Kasakogias A, Syros P, Kallikazaros I, Hristova K, Cornelissen G, Singh R, Shiue I, Coisne D, Madjalian AM, Tchepkou C, Raud Raynier P, Degand B, Christiaens L, Baldenhofer G, Spethmann S, Dreger H, Sanad W, Baumann G, Stangl K, Stangl V, Knebel F, Azzaz S, Kacem S, Ouali S, Risos L, Dedobbeleer C, Unger P, Sinem Cakal S, Elif Eroglu E, Baydar O, Beytullah Cakal B, Mehmet Vefik Yazicioglu M, Mustafa Bulut M, Cihan Dundar C, Kursat Tigen K, Birol Ozkan B, Ali Metin Esen A, Tournoux F, Chequer R, Sroussi M, Hyafil F, Rouzet F, Leguludec D, Baum P, Stoebe S, Pfeiffer D, Hagendorff A, Fang F, Lau M, Zhang Q, Luo X, Wang X, Chen L, Yu C, Zaborska B, Smarz K, Makowska E, Kulakowski P, Budaj A, Bengrid TM, Zhao Y, Henein MY, Caminiti G, D'antoni V, Cardaci V, Conti V, Volterrani M, Warita S, Kawasaki M, Yagasaki H, Minatoguchi S, Nagaya M, Ono K, Noda T, Watanabe S, Houle H, Minatoguchi S, Gillebert TC, Chirinos JA, Claessens TC, Raja MW, De Buyzere ML, Segers P, Rietzschel ER, Kim K, Cha J, Chung H, Kim J, Yoon Y, Lee B, Hong B, Rim S, Kwon H, Choi E, Pyankov V, Aljaroudi W, Matta S, Al-Shaar L, Habib R, Gharzuddin W, Arnaout S, Skouri H, Jaber W, Abchee A, Bouzas Mosquera A, Peteiro J, Broullon F, Constanso Conde I, Bescos Galego H, Martinez Ruiz D, Yanez Wonenburger J, Vazquez Rodriguez J, Alvarez Garcia N, Castro Beiras A, Gunyeli E, Oliveira Da Silva C, Shahgaldi K, Manouras A, Winter R, Meimoun P, Abouth S, Martis S, Boulanger J, Elmkies F, Zemir H, Detienne J, Luycx-Bore A, Clerc J, Rodriguez Palomares JF, Gutierrez L, Maldonado G, Garcia G, Galuppo V, Gruosso D, Teixido G, Gonzalez Alujas M, Evangelista A, Garcia Dorado D, Rechcinski T, Wierzbowska-Drabik K, Wejner-Mik P, Szymanska B, Jerczynska H, Lipiec P, Kasprzak J, El-Touny K, El-Fawal S, Loutfi M, El-Sharkawy E, Ashour S, Boniotti C, Carminati M, Fusini L, Andreini D, Pontone G, Pepi M, Caiani E, Oryshchyn N, Kramer B, Hermann S, Liu D, Hu K, Ertl G, Weidemann F, Ancona F, Miyazaki S, Slavich M, Figini F, Latib A, Chieffo A, Montorfano M, Alfieri O, Colombo A, Agricola E, Nogueira M, Branco L, Rosa S, Portugal G, Galrinho A, Abreu J, Cacela D, Patricio L, Fragata J, Cruz Ferreira R, Igual Munoz B, Erdociain Perales M, Maceira Gonzalez A, Estornell Erill Jordi J, Donate Bertolin L, Vazquez Sanchez Alejandro A, Miro Palau Vicente V, Cervera Zamora A, Piquer Gil M, Montero Argudo A, Girgis HYA, Illatopa V, Cordova F, Espinoza D, Ortega J, Khan U, Islam A, Majumder A, Girgis HYA, Bayat F, Naghshbandi E, Naghshbandi E, Samiei N, Samiei N, Malev E, Omelchenko M, Vasina L, Zemtsovsky E, Piatkowski R, Kochanowski J, Budnik M, Scislo P, Opolski G, Kochanowski J, Piatkowski R, Scislo P, Budnik M, Marchel M, Opolski G, Abid L, Ben Kahla S, Abid D, Charfeddine S, Maaloul I, Ben Jmaa M, Kammoun S, Hashimoto G, Suzuki M, Yoshikawa H, Otsuka T, Isekame Y, Yamashita H, Kawase I, Ozaki S, Nakamura M, Sugi K, Benvenuto E, Leggio S, Buccheri S, Bonura S, Deste W, Tamburino C, Monte IP, Gripari P, Fusini L, Muratori M, Tamborini G, Ghulam Ali S, Bottari V, Cefalu' C, Bartorelli A, Agrifoglio M, Pepi M, Zambon E, Iorio A, Di Nora C, Abate E, Lo Giudice F, Di Lenarda A, Agostoni P, Sinagra G, Timoteo AT, Galrinho A, Moura Branco L, Rio P, Aguiar Rosa S, Oliveira M, Silva Cunha P, Leal A, Cruz Ferreira R, Zemanek D, Tomasov P, Belehrad M, Kostalova J, Kara T, Veselka J, Hassanein M, El Tahan S, El Sharkawy E, Shehata H, Yoon Y, Choi H, Seo H, Lee S, Kim H, Youn T, Kim Y, Sohn D, Choi G, Mielczarek M, Huttin O, Voilliot D, Sellal J, Manenti V, Carillo S, Olivier A, Venner C, Juilliere Y, Selton-Suty C, Butz T, Faber L, Brand M, Piper C, Wiemer M, Noelke J, Sasko B, Langer C, Horstkotte D, Trappe H, Maysou L, Tessonnier L, Jacquier A, Serratrice J, Copel C, Stoppa A, Seguier J, Saby L, Verschueren A, Habib G, Petroni R, Bencivenga S, Di Mauro M, Acitelli A, Cicconetti M, Romano S, Petroni A, Penco M, Maceira Gonzalez AM, Cosin-Sales J, Igual B, Sancho-Tello R, Ruvira J, Mayans J, Choi J, Kim S, Almeida A, Azevedo O, Amado J, Picarra B, Lima R, Cruz I, Pereira V, Marques N, Chatzistamatiou E, Konstantinidis D, Manakos K, Mpampatseva Vagena I, Moustakas G, Memo G, Mitsakis O, Kasakogias A, Syros P, Kallikazaros I, Cho E, Kim J, Hwang B, Kim D, Jang S, Jeon H, Cho J, Chatzistamatiou E, Konstantinidis D, Memo G, Mpapatzeva Vagena I, Moustakas G, Manakos K, Traxanas K, Vergi N, Feretou A, Kallikazaros I, Jedrzejewska I, Konopka M, Krol W, Swiatowiec A, Dluzniewski M, Braksator W, Sefri Noventi S, Sugiri S, Uddin I, Herminingsih S, Arif Nugroho M, Boedijitno S, Caro Codon J, Blazquez Bermejo Z, Valbuena Lopez SC, Lopez Fernandez T, Rodriguez Fraga O, Torrente Regidor M, Pena Conde L, Moreno Yanguela M, Buno Soto A, Lopez-Sendon JL, Stevanovic A, Dekleva M, Kim M, Kim S, Kim Y, Shim J, Park S, Park S, Kim Y, Shim W, Kozakova M, Muscelli E, Morizzo C, Casolaro A, Paterni M, Palombo C, Bayat F, Nazmdeh M, Naghshbandi E, Nateghi S, Tomaszewski A, Kutarski A, Brzozowski W, Tomaszewski M, Nakano E, Harada T, Takagi Y, Yamada M, Takano M, Furukawa T, Akashi Y, Lindqvist G, Henein M, Backman C, Gustafsson S, Morner S, Marinov R, Hristova K, Geirgiev S, Pechilkov D, Kaneva A, Katova T, Pilosoff V, Pena Pena M, Mesa Rubio D, Ruiz Ortin M, Delgado Ortega M, Romo Penas E, Pardo Gonzalez L, Rodriguez Diego S, Hidalgo Lesmes F, Pan Alvarez-Ossorio M, Suarez De Lezo Cruz-Conde J, Gospodinova M, Sarafov S, Guergelcheva V, Vladimirova L, Tournev I, Denchev S, Mozenska O, Segiet A, Rabczenko D, Kosior D, Gao S, Eliasson M, Polte C, Lagerstrand K, Bech-Hanssen O, Morosin M, Piazza R, Leonelli V, Leiballi E, Pecoraro R, Cinello M, Dell' Angela L, Cassin M, Sinagra G, Nicolosi G, Savu O, Carstea N, Stoica E, Macarie C, Moldovan H, Iliescu V, Chioncel O, Moral S, Gruosso D, Galuppo V, Teixido G, Rodriguez-Palomares J, Gutierrez L, Evangelista A, Jansen Klomp WW, Peelen L, Spanjersberg A, Brandon Bravo Bruinsma G, Van 'T Hof A, Laveau F, Hammoudi N, Helft G, Barthelemy O, Michel P, Petroni T, Djebbar M, Boubrit L, Le Feuvre C, Isnard R, Bandera F, Generati G, Pellegrino M, Alfonzetti E, Labate V, Villani S, Gaeta M, Guazzi M, Gabriels C, Lancellotti P, Van De Bruaene A, Voilliot D, De Meester P, Buys R, Delcroix M, Budts W, Cruz I, Stuart B, Caldeira D, Morgado G, Almeida A, Lopes L, Fazendas P, Joao I, Cotrim C, Pereira H, Weissler Snir A, Greenberg G, Shapira Y, Weisenberg D, Monakier D, Nevzorov R, Sagie A, Vaturi M, Bando M, Yamada H, Saijo Y, Takagawa Y, Sawada N, Hotchi J, Hayashi S, Hirata Y, Nishio S, Sata M, Jackson T, Sammut E, Siarkos M, Lee L, Carr-White G, Rajani R, Kapetanakis S, Ciobotaru V, Yagasaki H, Kawasaki M, Tanaka R, Minatoguchi S, Sato N, Amano K, Warita S, Ono K, Noda T, Minatoguchi S, Breithardt OA, Razavi H, Nabutovsky Y, Ryu K, Gaspar T, Kosiuk J, John S, Prinzen F, Hindricks G, Piorkowski C, Nemchyna O, Tovstukha V, Chikovani A, Golikova I, Lutai M, Nemes A, Kalapos A, Domsik P, Lengyel C, Orosz A, Forster T, Nordenfur T, Babic A, Giesecke A, Bulatovic I, Ripsweden J, Samset E, Winter R, Larsson M, Blazquez Bermejo Z, Lopez Fernandez T, Caro Codon J, Valbuena S, Caro Codon J, Mori Junco R, Moreno Yanguela M, Lopez-Sendon J, Pinto-Teixeira P, Branco L, Galrinho A, Oliveira M, Cunha P, Silva T, Rio P, Feliciano J, Nogueira-Silva M, Ferreira R, Shkolnik E, Vasyuk Y, Nesvetov V, Shkolnik L, Varlan G, Bajraktari G, Ronn F, Ibrahimi P, Jashari F, Jensen S, Henein M, Kang MK, Mun HS, Choi S, Cho JR, Han S, Lee N, Cho IJ, Heo R, Chang H, Shin S, Shim C, Hong G, Chung N. Poster session 3: Thursday 4 December 2014, 14:00-18:00 * Location: Poster area. Eur Heart J Cardiovasc Imaging 2014. [DOI: 10.1093/ehjci/jeu253] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Jana B, Majumder A, Thakur KB, Das AK. Note: Design principles of a linear array multi-channel effusive metal-vapor atom source. Rev Sci Instrum 2013; 84:106113. [PMID: 24182186 DOI: 10.1063/1.4825343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Atomic beams can easily be produced by allowing atoms to effuse through a channel. In an earlier investigation [A. Majumder et al., Vacuum 83, 989 (2009)], we had designed, fabricated, and characterized an effusive metal-vapor source using collinear-array of multi-channel. In this note, we describe the theoretical basis of designing the source. Atom density in atomic beam has been estimated using a set of analytical expressions for long-channel operated in transparent mode. Parametric studies on aspect ratio of channel, inter-channel separation, beam width, and vertical distance from the source are carried out. They are useful in providing physical picture and optimizing design parameters.
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Affiliation(s)
- B Jana
- Laser and Plasma Technology Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India
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Majumder A, Chatterjee S, Maji D. Peripheral neuropathy in diabetes. J Indian Med Assoc 2013; 111:382-386. [PMID: 24761495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Peripheral neuropathy is common complication of diabetes. The prevalence of peripheral neuropathy among diabetic patients on the basis of loss of vibration sensation had been studied. Detailed clinical history of each patient including age, gender, duration of diabetes, foot ulcer and biothesiometry was recorded in 211 diabetic patients between 20 and 80 years of age. It was observed that all patients under 30 years age (n = 8) felt vibration below 15 volts (no risk zone); 77% (24 out of 31) of the patients in the age group of 30-39 years were in the no risk zone, and 23% (n = 7) had mild peripheral neuropathy. Sixty per cent of the patients between 40 and 50 years (n = 44) were in the no risk zone, while 32% (n = 24) had mild peripheral neuropathy, 5% (n = 4) had moderate neuropathy and 3% (n = 2) had severe peripheral neuropathy. Amongst patients above 50 years of age, 31% (n = 31) were in no risk zone, 34% (n = 34) had mild peripheral neuropathy, 22% (n = 20) had moderate peripheral neuropathy and 13% (n = 13) had severe peripheral neuropathy. Of the patients with diabetes for less than 5 years, 58% had no neuropathy, and only 3% had severe neuropathy. Of the patients with diabetes for 5 to 15 years, 50% had no neuropathy, 30% had mild, and 10% had severe peripheral neuropathy. When patients with diabetes for over 15 years were studied, only 6% had no neuropathy and 19% had severe peripheral neuropathy. The study re-establishes that the severity of peripheral neuropathy increases with age and vibration perception decreses progressively with increased duration of diabetes. Vibration perception threshold testing helps to identify the high risk subjects who require special counselling and education to protect their feet.
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Majumder A, Shen C. Suppression of the high-p(T) charged-hadron R(AA) at the LHC. Phys Rev Lett 2012; 109:202301. [PMID: 23215471 DOI: 10.1103/physrevlett.109.202301] [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] [Subscribe] [Scholar Register] [Received: 04/07/2011] [Revised: 08/08/2012] [Indexed: 06/01/2023]
Abstract
We present a parameter-free postdiction of the high-p(T) charged-hadron nuclear modification factor (R(AA)) in two centralities, measured by the CMS Collaboration in Pb-Pb collisions at the LHC. The evolution of the bulk medium is modeled using viscous fluid dynamics, with parameters adjusted to describe the soft hadron yields and elliptic flow. Assuming the dominance of radiative energy loss, we compute the medium modification of the R(AA) using a perturbative QCD-based formalism, the higher twist scheme. The transverse momentum diffusion coefficient q[over ^] is assumed to scale with the entropy density and is normalized by fitting the R(AA) in the most central Au-Au collisions at the Relativistic Heavy-Ion Collider. This setup is validated in noncentral Au-Au collisions at the Relativistic Heavy-Ion Collider and then extrapolated to Pb-Pb collisions at the LHC, keeping the relation between q[over ^] and entropy density unchanged. We obtain a satisfactory description of the CMS R(AA) over the p(T) range from 10 to 100 GeV.
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Affiliation(s)
- A Majumder
- Department of Physics, The Ohio State University, Columbus, Ohio 43210, USA
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Lahiri S, Sahu GK, Baruah S, Jana B, Dixit AR, Bhardwaj RL, Das RC, Kalra R, Kaushik V, Majumder A, Mohapatra S, Dikshit B, Mishra KK, Bhatia MS, Bapat AV, Mago VK, Thakur KB, Das AK, Gantayet LM. Comparative study of evaporation using DC and AC filament electron guns. ACTA ACUST UNITED AC 2012. [DOI: 10.1088/1742-6596/390/1/012016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Sharma S, Choudhury KB, Mandal S, Majumder A. Primary squamous cell carcinoma of kidney - a case report of unusual local recurrence with literature review. Bangladesh J Med Sci 2012. [DOI: 10.3329/bjms.v11i3.11734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Primary squamous cell carcinoma of the kidney is a rare clinical entity. Primary squamous cell carcinoma is more frequently reported in urinary bladder and male urethra than in kidney. Primary renal squamous cell carcinoma (RSCC) accounts for less than 5% of urothelial tumours in urinary system. Very few cases of primary squamous cell carcinoma of kidney have been reported in the world literature. Only forty-six cases over forty four years had been reported from Mayo Clinic. These neoplasms are highly aggressive and locally advanced or metastatic at the time of presentation. Here we report such a case of primary squamous cell carcinoma of kidney in a 50-year-old lady at a locally recurrent stage with fistulous tract formation. Palliative radiotherapy came out to be a good clinical modality even in locally recurrent stage in this patient. DOI: http://dx.doi.org/10.3329/bjms.v11i3.11734 Bangladesh Journal of Medical Science Vol. 11 No. 03 July12
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Hachem MA, Fredslund F, Andersen JM, Jonsgaard Larsen R, Majumder A, Ejby M, Van Zanten G, Lahtinen SJ, Barrangou R, Klaenhammer T, Jacobsen S, Coutinho PM, Lo Leggio L, Svensson B. Raffinose family oligosaccharide utilisation by probiotic bacteria: insight into substrate recognition, molecular architecture and diversity of GH36 α-galactosidases. BIOCATAL BIOTRANSFOR 2012. [DOI: 10.3109/10242422.2012.674717] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Sarkar DK, Panda N, Biswas S, Saha ML, Majumder A. Is immediate postoperative CA15.3 assay a predictive marker of early postoperative recurrence of carcinoma breast? J Indian Med Assoc 2012; 110:146-147. [PMID: 23029943] [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: 06/01/2023]
Abstract
Breast cancer is still an enigma. Systemic metastasis is an important prognostic factor. Tumour marker can predict occult systemic metastasis. To evaluate the immediate postoperative CA15.3 as predictor of early recurrence, a study was carried out in 48 patients of carcinoma breast in whom immediate postoperative marker level was done. In follow-up, recurrence was noted and relation with tumour size and stage done. Null hypothesis and 't' test were used for analysis. Relation of tumour size with marker is weak but strong relation exists between tumour stage with marker and recurrence with marker. CA15.3 predicts tumour load, can also predict occult residual/occult metastatic disease better than other prognostic markers which only predict tumour behaviour.
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Das S, Badani PM, Sharma P, Vatsa RK, Das D, Majumder A, Das AK. Multiphoton ionization and Coulomb explosion of C2H5Br clusters: a mass spectrometric and charge density study. Rapid Commun Mass Spectrom 2011; 25:1028-1036. [PMID: 21452379 DOI: 10.1002/rcm.4951] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2010] [Revised: 01/20/2011] [Accepted: 01/22/2011] [Indexed: 05/30/2023]
Abstract
Using time-of-flight mass spectrometry (TOFMS), laser-induced photochemistry of ethyl bromide clusters has been investigated at three different wavelengths (viz. 266, 355 and 532 nm) utilizing nanosecond laser pulses of ~5 × 10(9) W/cm(2). An interesting finding of the present work is the observation of multiply charged atomic ions of carbon and bromine at 355 and 532 nm, arising from the Coulomb explosion of (C(2)H(5)Br)(n) clusters. At 266 nm, however, the (C(2)H(5)Br)(n) clusters were found to exhibit the usual multiphoton dissociation/ionization behaviour. The TOFMS studies are complemented by measuring the total charge density of the ionized volume at 266, 355 and 532 nm, using the parallel plate method, and the charge densities were found to be ~2 × 10(9), 6 × 10(9) and 2 × 10(11) charges/cm(3), respectively. The significantly higher charge density and the presence of energetic, multiply charged atomic ions at 532 nm are explained by the higher ponderomotive energy of the 532 nm photon, coupled with the Coulomb stability of the residual multiply charged ethyl bromide clusters generated upon laser irradiation, due to their larger effective cluster size at 532 nm than at 355 and 266 nm.
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Affiliation(s)
- S Das
- Chemistry Division, Bhabha Atomic Research Centre, Mumbai, 400 085, India
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Baskin R, Majumder A, P. Sayeski P. The Recent Medicinal Chemistry Development of Jak2 Tyrosine Kinase Small Molecule Inhibitors. Curr Med Chem 2010; 17:4551-8. [DOI: 10.2174/092986710794182953] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2010] [Accepted: 10/16/2010] [Indexed: 11/22/2022]
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Abstract
For a hard parton moving through a dense QCD medium, we compute self-consistently the energy loss and the fraction deposited into the medium due to showering and rescattering of the shower, assuming weak coupling between probe and medium. The same transport coefficients thus determine both the energy loss and its deposition into the medium. This allows a parameter free calculation of the latter once the former are computed or measured. We compute them for a weakly interacting medium. Assuming a short thermalization time for the deposited energy, we determine the medium's hydrodynamical response and obtain a conical pattern that is strongly enhanced by showering.
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Affiliation(s)
- G-Y Qin
- Department of Physics, The Ohio State University, Columbus, Ohio 43210, USA
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Majumder A, Dikshit B, Bhatia MS, Mago VK. Use of multiwavelength emission from hollow cathode lamp for measurement of state resolved atom density of metal vapor produced by electron beam evaporation. Rev Sci Instrum 2008; 79:093305. [PMID: 19044405 DOI: 10.1063/1.2987689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
State resolved atom population of metal vapor having low-lying metastable states departs from equilibrium value. It needs to be experimentally investigated. This paper reports the use of hollow cathode lamp based atomic absorption spectroscopy technique to measure online the state resolved atom density (ground and metastable) of metal vapor in an atomic beam produced by a high power electron gun. In particular, the advantage of availability of multiwavelength emission in hollow cathode lamp is used to determine the atom density in different states. Here, several transitions pertaining to a given state have also been invoked to obtain the mean value of atom density thereby providing an opportunity for in situ averaging. It is observed that at higher source temperatures the atoms from metastable state relax to the ground state. This is ascribed to competing processes of atom-atom and electron-atom collisions. The formation of collision induced virtual source is inferred from measurement of atom density distribution profile along the width of the atomic beam. The total line-of-sight average atom density measured by absorption technique using hollow cathode lamp is compared to that measured by atomic vapor deposition method. The presence of collisions is further supported by determination of beaming exponent by numerically fitting the data.
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Affiliation(s)
- A Majumder
- Laser and Plasma Technology Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India.
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Majumder A, Wang E, Wang XN. Modified dihadron fragmentation functions in hot and nuclear matter. Phys Rev Lett 2007; 99:152301. [PMID: 17995159 DOI: 10.1103/physrevlett.99.152301] [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] [Received: 12/11/2006] [Revised: 07/16/2007] [Indexed: 05/25/2023]
Abstract
Medium modification of dihadron fragmentation functions due to gluon bremsstrahlung induced by multiple partonic scattering is studied in both deep-inelastic scattering (DIS) off large nuclei and high-energy heavy-ion collisions within the same framework of twist expansion. The modification for dihadrons is found to closely follow that for single hadrons, leading to a weak nuclear suppression of their ratios in DIS experiments. A mild enhancement of the near-side correlation of two high transverse momentum hadrons with increasing centrality is found in heavy-ion collisions due to trigger bias and the rise in parton energy loss with centrality. Successful comparisons between theory and experiment for multihadron observables in both confining and deconfined media offer comprehensive evidence for partonic energy loss as the mechanism of jet modification in dense matter.
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Affiliation(s)
- A Majumder
- Department of Physics, Duke University, Durham, North Carolina 27708, USA
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Majumder A, Müller B, Bass SA. Longitudinal broadening of quenched jets in turbulent color fields. Phys Rev Lett 2007; 99:042301. [PMID: 17678353 DOI: 10.1103/physrevlett.99.042301] [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] [Received: 11/11/2006] [Revised: 04/03/2007] [Indexed: 05/16/2023]
Abstract
The nearside distribution of particles at intermediate transverse momentum, associated with a high momentum trigger hadron produced in a high energy heavy-ion collision, is broadened in rapidity compared with the jet cone. This broadened distribution is thought to contain the energy lost by the progenitor parton of the trigger hadron. We show that the broadening can be explained as the final-state deflection of the gluons radiated from the hard parton inside the medium by soft, transversely oriented, turbulent color fields that arise in the presence of plasma instabilities. The magnitude of the effect is found to grow with medium size and density and diminish with increasing energy of the associated hadron.
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Affiliation(s)
- A Majumder
- Department of Physics, Duke University, Durham, North Carolina 27708, USA
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Abstract
The possibility of Cherenkov-like gluon bremsstrahlung in dense matter is studied. We point out that the occurrence of Cherenkov radiation in dense matter is sensitive to the presence of partonic bound states. This is illustrated by a calculation of the dispersion relation of a massless particle in a simple model in which it couples to two different massive resonance states. We further argue that detailed spectroscopy of jet correlations can directly probe the index of refraction of this matter, which in turn will provide information about the mass scale of these partonic bound states.
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Affiliation(s)
- V Koch
- Nuclear Science Division, Lawrence Berkeley National Laboratory, California 94720, USA
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Koch V, Majumder A, Randrup J. Baryon-strangeness correlations: a diagnostic of strongly interacting matter. Phys Rev Lett 2005; 95:182301. [PMID: 16383895 DOI: 10.1103/physrevlett.95.182301] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2005] [Indexed: 05/05/2023]
Abstract
The correlation between baryon number and strangeness elucidates the nature of strongly interacting matter, such as that formed transiently in high-energy nuclear collisions. This diagnostic can be extracted theoretically from lattice QCD calculations and experimentally from event-by-event fluctuations. The analysis of present lattice results above the critical temperature severely limits the presence of qq bound states, thus supporting a picture of independent (quasi)quarks.
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Affiliation(s)
- V Koch
- Nuclear Science Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USA
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Ghosh B, Sengupta S, Bhattacharjee B, Majumder A, Sarkar SB. Fenofibrate-induced myopathy. Neurol India 2004; 52:268-9. [PMID: 15269493] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/30/2023]
Abstract
Fenofibrate induced myopathy is a rare adverse event. We present a case of muscle pain and quadriparesis following administration of 200mg of fenofibrate for 35 days. Patient gradually improved after stopping the drug. As per our knowledge, this is probably the first case report of fenofibrate induced myopathy from India.
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Affiliation(s)
- Bhaskar Ghosh
- Department of Neurology and Medicine, B. R. Singh Hospital and Centre for Medical Education and Research, Central Hospital of Eastern Railway, Sealdah, Kolkata - 700 014, India.
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Majumder A, Basak S, Raha T, Chowdhury SP, Chattopadhyay D, Roy S. Effect of osmolytes and chaperone-like action of P-protein on folding of nucleocapsid protein of Chandipura virus. J Biol Chem 2001; 276:30948-55. [PMID: 11413127 DOI: 10.1074/jbc.m011705200] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Amino acid sequences of nucleocapsid proteins are mostly conserved among different rhabdoviruses. The protein plays a common functional role in different RNA viruses by enwrapping the viral genomic RNA in an RNase-resistant form. Upon expression of the nucleocapsid protein alone in COS cells and in bacteria, it forms large insoluble aggregates. In this work, we have reported for the first time the full-length cloning of the N gene of Chandipura virus and its expression in Escherichia coli in a soluble monomeric form and purification using nonionic detergents. The biological activity of the soluble recombinant protein has been tested, and it was found to possess efficient RNA-binding ability. The state of aggregation of the recombinant protein was monitored using light scattering. In the absence of nonionic detergents, it formed large aggregates. Aggregation was significantly reduced in the presence of osmolytes such as d-sorbitol. Aggregate formation was suppressed in the presence of another viral product, phosphoprotein P, in a chaperone-like manner. Both the osmolyte and phosphoprotein P also suppressed aggregation to a great extent during refolding from a guanidine hydrochloride-denatured form. The function of the phosphoprotein and osmolyte appears to be synergistic to keep the N-protein in a soluble biologically competent form in virus-infected cells.
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Affiliation(s)
- A Majumder
- Department of Biochemistry and the Dr. B. C. Guha Centre for Genetic Engineering and Biotechnology, University College of Science, University of Calcutta, 35 Ballygunge Circular Road, Calcutta 700 019, India
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Abstract
We have previously demonstrated that sequential activation of the bacterial ilvIH-leuO-leuABCD gene cluster involves a promoter-relay mechanism. In the current study, we show that the final activation of the leuABCD operon is through a transcriptional derepression mechanism. The leuABCD operon is transcriptionally repressed by the presence of a 318-base pair AT-rich upstream element. LeuO is required for derepressing the repressed leuABCD operon. Deletion analysis of the repressive effect of the 318-bp element has led to the identification of a 72-bp AT-rich (78% A+T) DNA sequence element, AT4, which is capable of silencing a number of unrelated promoters in addition to the leuABCD promoter. AT4-mediated gene silencing is orientation-independent and occurs within a distance of 300 base pairs. Furthermore, an increased gene-silencing effect was observed with a tandemly repeated AT4 dimer. The possible mechanism of AT4-mediated gene silencing in bacteria is discussed.
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Affiliation(s)
- C C Chen
- Department of Pharmacology, School of Medicine, Wayne State University, Detroit, Michigan 48201, USA
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Abstract
The recently identified role of LeuO in the regulation of transcription has prompted us to search for the specific function(s) of LeuO in bacterial physiology. The cryptic nature of expression of leuO has previously limited such analysis. A conditional leuO expression was found when bacteria enter stationary phase and was shown to be guanosine 3',5'-bispyrophosphate-dependent. Multiple physiological events, including the stringent response, are induced upon the increase of the bacterial stress signal, guanosine 3',5'-bispyrophosphate. In this study, we tested whether LeuO was directly involved in the bacterial stringent response. LeuO was shown to be indispensable for growth resumption following a 2-h growth arrest caused by starvation for branched-chain amino acids in an E. coli K-12 relA1 strain. This result supports a functional role for LeuO in the bacterial stringent response.
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Affiliation(s)
- A Majumder
- Department of Pharmacology, School of Medicine, Wayne State University, Detroit, Michigan 48201, USA
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Abstract
Despite the known potential transcription regulatory role of leuO gene product, LeuO, the condition when leuO expresses during bacterial growth cycle remains unclear. Mechanistically, leuO expression was shown to be part of promoter relay mechanism, however, the factor(s) responsible for the regulation of leuO expression is not known. Combining Northern and Western results, we demonstrate in the present communication that leuO expression is normally low and enhanced when bacteria are in transition from exponential growth to stationary phase. The stationary phase-associated leuO expression is ppGpp dependent and rpoS (sigma(s) factor) independent.
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Affiliation(s)
- M Fang
- Department of Pharmacology, Wayne State University, Detroit, Michigan 48201, USA
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Abstract
The methanol extract of the bark of Litsea glutinosa showed antibacterial activity, comparable to chloramphenicol, against all 16 tested microorganisms.
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Affiliation(s)
- S C Mandal
- Division of Pharmacognosy, Department of Pharmaceutical Technology, Faculty of Engineering and Technology, Jadavpur University, Calcutta 700 032, India.
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Chatterjee M, Majumder A, Iyer P, Muthukrishnan G, Das MK, Ramamoorthy N, Desai CN, Banerjee S. Anomalies in hepatobiliary excretion of technetium-99m-MAG3 preparations. Nucl Med Biol 1996; 23:867-72. [PMID: 8971853 DOI: 10.1016/s0969-8051(96)00116-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Technetium-99m-MAG3 is accepted as a renal tubular function agent. However, sporadic liver and gall bladder visualisation during its clinical use is clearly a disadvantage. HPLC-purified 99mTc-MAG3 samples exhibited appreciable hepatobiliary uptake (7%), and an elevated level of such uptake was observed in unpurified kit preparations, which was stated to be associated with the excretory property of the radiolabeled kit impurities. To verify this we attempted to quantitate the hepatobiliary uptake of the kit preparations with that of its radiolabeled components. The contribution of each component toward hepatobiliary uptake of the sample was calculated from their abundance in the chelate mixture and the individual biodistribution of the isolated components. However, the anticipated hepatobiliary uptake of different preparations of 99mTc-MAG3 calculated in this way was always lower than that of the experimental value determined directly. Further work is needed to explain the anomaly.
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Affiliation(s)
- M Chatterjee
- Indian Institute of Chemical Biology, Calcutta, India
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