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Verma R, Jayakumar J, Folkerth R, Manger PR, Bota M, Majumder M, Pandurangan K, Savoia S, Karthik S, Kumarasami R, Joseph J, Rohini G, Vasudevan S, Srinivasan C, Lata S, Kumar EH, Rangasami R, Kumutha J, Suresh S, Šimić G, Mitra PP, Sivaprakasam M. Histological characterization and development of mesial surface sulci in the human brain at 13-15 gestational weeks through high-resolution histology. J Comp Neurol 2024; 532:e25612. [PMID: 38591638 DOI: 10.1002/cne.25612] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 03/06/2024] [Accepted: 03/24/2024] [Indexed: 04/10/2024]
Abstract
Cellular-level anatomical data from early fetal brain are sparse yet critical to the understanding of neurodevelopmental disorders. We characterize the organization of the human cerebral cortex between 13 and 15 gestational weeks using high-resolution whole-brain histological data sets complimented with multimodal imaging. We observed the heretofore underrecognized, reproducible presence of infolds on the mesial surface of the cerebral hemispheres. Of note at this stage, when most of the cerebrum is occupied by lateral ventricles and the corpus callosum is incompletely developed, we postulate that these mesial infolds represent the primordial stage of cingulate, callosal, and calcarine sulci, features of mesial cortical development. Our observations are based on the multimodal approach and further include histological three-dimensional reconstruction that highlights the importance of the plane of sectioning. We describe the laminar organization of the developing cortical mantle, including these infolds from the marginal to ventricular zone, with Nissl, hematoxylin and eosin, and glial fibrillary acidic protein (GFAP) immunohistochemistry. Despite the absence of major sulci on the dorsal surface, the boundaries among the orbital, frontal, parietal, and occipital cortex were very well demarcated, primarily by the cytoarchitecture differences in the organization of the subplate (SP) and intermediate zone (IZ) in these locations. The parietal region has the thickest cortical plate (CP), SP, and IZ, whereas the orbital region shows the thinnest CP and reveals an extra cell-sparse layer above the bilaminar SP. The subcortical structures show intensely GFAP-immunolabeled soma, absent in the cerebral mantle. Our findings establish a normative neurodevelopment baseline at the early stage.
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Affiliation(s)
- Richa Verma
- Sudha Gopalakrishnan Brain Centre, Indian Institute of Technology Madras, Chennai, Tamil Nadu, India
| | - Jaikishan Jayakumar
- Sudha Gopalakrishnan Brain Centre, Indian Institute of Technology Madras, Chennai, Tamil Nadu, India
- Center for Computational Brain Research, Indian Institute of Technology Madras, Chennai, Tamil Nadu, India
| | - Rebecca Folkerth
- Department of Forensic Medicine, NYU Grossman School of Medicine, New York, New York, USA
| | - Paul R Manger
- School of Anatomical Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Mihail Bota
- Sudha Gopalakrishnan Brain Centre, Indian Institute of Technology Madras, Chennai, Tamil Nadu, India
| | - Moitrayee Majumder
- Sudha Gopalakrishnan Brain Centre, Indian Institute of Technology Madras, Chennai, Tamil Nadu, India
| | - Karthika Pandurangan
- Sudha Gopalakrishnan Brain Centre, Indian Institute of Technology Madras, Chennai, Tamil Nadu, India
| | | | - Srinivasa Karthik
- Healthcare Technology Innovation Centre, Indian Institute of Technology Madras, Chennai, Tamil Nadu, India
| | - Ramdayalan Kumarasami
- Sudha Gopalakrishnan Brain Centre, Indian Institute of Technology Madras, Chennai, Tamil Nadu, India
- Healthcare Technology Innovation Centre, Indian Institute of Technology Madras, Chennai, Tamil Nadu, India
| | - Jayaraj Joseph
- Sudha Gopalakrishnan Brain Centre, Indian Institute of Technology Madras, Chennai, Tamil Nadu, India
- Healthcare Technology Innovation Centre, Indian Institute of Technology Madras, Chennai, Tamil Nadu, India
- Department of Electrical Engineering, Indian Institute of Technology, Madras, Chennai, Tamil Nadu, India
| | - G Rohini
- Department of Obstetrics & Gynaecology, Saveetha Medical College, Thandalam, Chennai, Tamil Nadu, India
| | - Sudha Vasudevan
- Department of Pathology, Saveetha Medical College, Thandalam, Chennai, Tamil Nadu, India
| | - Chitra Srinivasan
- Department of Pathology, Saveetha Medical College, Thandalam, Chennai, Tamil Nadu, India
| | - S Lata
- Mediscan Systems, Chennai, Tamil Nadu, India
| | | | - Rajeswaran Rangasami
- Department of Radiology, Sri Ramachandra Institute of Higher Education and Research, Chennai, Tamil Nadu, India
| | - Jayaraman Kumutha
- Department of Neonatology, Saveetha Medical College, Thandalam, Chennai, Tamil Nadu, India
| | - S Suresh
- Mediscan Systems, Chennai, Tamil Nadu, India
| | - Goran Šimić
- Department of Neuroscience, Croatian Institute for Brain Research, University of Zagreb Medical School, Zagreb, Hrvatska, Croatia
| | - Partha P Mitra
- Center for Computational Brain Research, Indian Institute of Technology Madras, Chennai, Tamil Nadu, India
- Cold Spring Harbor Laboratory, New York, New York, USA
| | - Mohanasankar Sivaprakasam
- Sudha Gopalakrishnan Brain Centre, Indian Institute of Technology Madras, Chennai, Tamil Nadu, India
- Healthcare Technology Innovation Centre, Indian Institute of Technology Madras, Chennai, Tamil Nadu, India
- Department of Electrical Engineering, Indian Institute of Technology, Madras, Chennai, Tamil Nadu, India
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Takenoshita M, Weir McCall JR, Barker AP, Suresh S, Celik H, Vuylsteke A. Association between body composition and mortality in patients requiring extracorporeal membrane oxygenation support. Clin Radiol 2024; 79:272-278. [PMID: 38278741 DOI: 10.1016/j.crad.2023.12.011] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 11/16/2023] [Accepted: 12/14/2023] [Indexed: 01/28/2024]
Abstract
AIM To ascertain the association between body composition, including muscle mass and adiposity, and patient mortality in those requiring extracorporeal membrane oxygenation (ECMO) for acute respiratory failure. MATERIALS AND METHODS A retrospective study was undertaken of all patients with acute respiratory failure requiring veno-venous (VV) ECMO between January 2015 and December 2019. Automated image segmentation software was used to quantify the cross-sectional area and average radiodensity (in Hounsfield units) of different muscle and fat compartments at the L3 level of whole-body computed tomography (CT) images taken within 48 h of initiation of ECMO support. The primary endpoint was 30-day post-ECMO initiation all-cause mortality. Logistic regression was used to analyse the correlation between CT measurements, co-morbidities, and 30-day survival. RESULTS The study included 189 patients (age = 43.8 ± 14.6, sex = 42.3% female). There was no significant association between 30-day survival status and cross-sectional area of muscle or fat. Muscle attenuation (psoas, long spine, and abdominal muscles respectively) at the L3 level were significantly lower in those who died within 30 days of ECMO cannulation (p<0.05). On multivariable analysis including age, sex, and pre-existing respiratory comorbidities, psoas muscle attenuation was an independent predictor of survival at 30 days (OR 0.97; 95% CI 0.94 to 1.00; p=0.047). CONCLUSIONS Reduced psoas muscle attenuation is associated with poorer survival outcomes at 30 days post-ECMO cannulation in patients who received VV ECMO support for respiratory failure. Cross-sectional areas of muscle and fat compartments did not correlate with survival outcomes at 30 days even when corrected for height and sex.
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Affiliation(s)
- M Takenoshita
- Department of Radiology, Royal Papworth Hospital, Cambridge, UK
| | - J R Weir McCall
- Department of Radiology, Royal Papworth Hospital, Cambridge, UK.
| | - A P Barker
- Department of Radiology, Royal Papworth Hospital, Cambridge, UK
| | - S Suresh
- Department of Radiology, Royal Papworth Hospital, Cambridge, UK
| | - H Celik
- University of Massachusetts Chan Medical School, Massachusetts, USA
| | - A Vuylsteke
- Department of Anaesthesia and Intensive Care, Royal Papworth Hospital, Cambridge, UK
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John J, Suresh S, Sivakumar M, Gopchandran K, Pillai VM. Ni doping induced property enhancement in laser ablated BaSnO 3 films suitable for optoelectronic applications. Heliyon 2024; 10:e26688. [PMID: 38468923 PMCID: PMC10925979 DOI: 10.1016/j.heliyon.2024.e26688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Accepted: 02/18/2024] [Indexed: 03/13/2024] Open
Abstract
Pulsed laser deposition is a straightforward approach for preparing films with superconducting to dielectric properties with atomic layer precision. The deep-seated mechanisms involved in the particle transport from target to substrate and subsequent film formation still need to be fully comprehended. This manuscript reports the property enhancement observed in laser ablated perovskite BaSnO3 films with Ni doping. Films' crystallinity improvement is observed, and an intensity enhancement of 1150% is observed on 3 mol% Ni-doping. The optimum Ni-doping concentration in BaSnO3 is found to be 3 mol%. Herein, Ni-doped BaSnO3 films deposited by PLD showed an unusual increase in film thickness (i.e., from 615 nm in the pure film to 1317 nm in the film with 7 mol% Ni-doping as revealed by lateral SEM analysis and spectroscopic ellipsometry). We propose an "Induced Magnetic field-assisted Particle Convergence (IMPC)" effect for this superficial growth enhancement. The film's optical properties are modified with an increased nickel doping level, and the bandgap energy shows renormalization. All the films show excellent transmittance (80-90%) in the Vis.-NIR region. Hall-effect measurement reveals the increased carrier concentration by three orders (2.98 × 1011 to 3.50 × 1014 cm-3). In addition, the enhancement in mobility from 3.13 to 20.93 cm2V-1s-1 and a decrease in electrical resistivity by six orders (i.e., from 4.05 × 109 to 1.13 × 103 Ω cm) are observed on 7 mol% Ni doping. XPS measurements reveals that the Ba, Sn and Ni ions are at 2+, 4+ and 2+ oxidation states. Using spectroscopic ellipsometric method, we estimated the optical constants of the films, the refractive index, dielectric constant, and extinction coefficient show a normal dispersion behavior. The high crystallinity, high transmittance, suitable surface topography, and improved electrical performances of the Ni-doped BaSnO3 films make them excellent candidates for optoelectronic devices and solar cells.
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Affiliation(s)
- Jibi John
- Department of Optoelectronics, University of Kerala, Thiruvananthapuram, Kerala, India
| | - S. Suresh
- Department of Optoelectronics, University of Kerala, Thiruvananthapuram, Kerala, India
- Department of Electronics, SreeAyyappa College, Chengannur, Kerala, India
| | - M. Sivakumar
- Department of Physics, Amrita School of Physical Sciences, Coimbatore, Amrita Vishwa Vidyapeetham, India
| | - K.G. Gopchandran
- Department of Optoelectronics, University of Kerala, Thiruvananthapuram, Kerala, India
| | - V.P. Mahadevan Pillai
- Department of Optoelectronics, University of Kerala, Thiruvananthapuram, Kerala, India
- Department of Physics, Amrita School of Physical Sciences, Coimbatore, Amrita Vishwa Vidyapeetham, India
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Anand U, Vaishnav A, Sharma SK, Sahu J, Ahmad S, Sunita K, Suresh S, Dey A, Bontempi E, Singh AK, Proćków J, Shukla AK. Corrigendum to "Current advances and research prospects for agricultural and industrial uses of microbial strains available in world collections" [Sci. Total Environ., volume 842, 1-22, 10 October 2022, 156641]. Sci Total Environ 2024; 913:169800. [PMID: 38195370 DOI: 10.1016/j.scitotenv.2023.169800] [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] [Subscribe] [Scholar Register] [Indexed: 01/11/2024]
Affiliation(s)
- Uttpal Anand
- CytoGene Research & Development LLP, K-51, Industrial Area, Kursi Road (Lucknow), Dist., Barabanki 225001, Uttar Pradesh, India
| | - Anukool Vaishnav
- Department of Biotechnology, Institute of Applied Sciences & Humanities, GLA University, Mathura, Uttar Pradesh 281406, India; Department of Plant and Microbial Biology, University of Zürich, Zollikerstrasse 107, CH-8008 Zürich, Switzerland; Plant-Soil Interaction Group, Agroscope (Reckenholz), Reckenholzstrasse 191, 8046 Zürich, Switzerland
| | - Sushil K Sharma
- National Agriculturally Important Microbial Culture Collection (NAIMCC), ICAR-National Bureau of Agriculturally Important Microorganisms (ICAR-NBAIM), Mau 275 103, Uttar Pradesh, India.
| | - Jagajjit Sahu
- GyanArras Academy, Gothapatna, Malipada, Bhubaneswar, Odisha 751029, India
| | - Sarfaraz Ahmad
- Department of Botany, Jai Prakash University, Saran, Chhapra 841301, Bihar, India
| | - Kumari Sunita
- Department of Botany, Faculty of Science, Deen Dayal Upadhyay Gorakhpur University, Gorakhpur, Uttar Pradesh 273009, India
| | - S Suresh
- Department of Chemical Engineering, Maulana Azad National Institute of Technology, Bhopal 462 003, Madhya Pradesh, India
| | - Abhijit Dey
- Department of Life Sciences, Presidency University, 86/1 College Street, Kolkata 700073, West Bengal, India
| | - Elza Bontempi
- INSTM and Chemistry for Technologies Laboratory, Department of Mechanical and Industrial Engineering, University of Brescia, Via Branze, 38, 25123 Brescia, Italy
| | - Amit Kishore Singh
- Department of Botany, Bhagalpur National College, A Constituent unit of Tilka Manjhi Bhagalpur University, Bhagalpur 812007, Bihar, India
| | - Jarosław Proćków
- Department of Plant Biology, Institute of Environmental Biology, Wrocław University of Environmental and Life Sciences, Kożuchowska 5b, 51-631 Wrocław, Poland.
| | - Awadhesh Kumar Shukla
- Department of Botany, K.S. Saket P.G. College, Ayodhya (affiliated to Dr. Rammanohar Lohia Avadh University, Ayodhya) 224123, Uttar Pradesh, India.
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Haresh Liya D, Elanchezhian M, Pahari M, Mouroug Anand N, Suresh S, Balaji N, Kumar Jainarayanan A. QPromoters: sequence based prediction of promoter strength in Saccharomyces cesrevisiae. All Life 2023. [DOI: 10.1080/26895293.2023.2168304] [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: 01/22/2023] Open
Affiliation(s)
- Devang Haresh Liya
- Department of Physical Sciences, Indian Institute of Science Education and Research, Mohali, India
| | - Mirudula Elanchezhian
- Department of Biological Sciences, Indian Institute of Science Education and Research, Mohali, India
| | - Mukulika Pahari
- Department of Computer Engineering, Ramrao Adik Institute of Technology, DY Patil Deemed to be University, Navi Mumbai, India
| | - Nithishwer Mouroug Anand
- Department of Physical Sciences, Indian Institute of Science Education and Research, Mohali, India
| | - Shivani Suresh
- Sheffield Institute for Translational Neuroscience (SITraN), University of Sheffield, Sheffield, UK
| | - Nivedha Balaji
- School of Biology and Environmental Sciences (SBES), University College Dublin, Dublin, Ireland
| | - Ashwin Kumar Jainarayanan
- Kennedy Institute of Rheumatology, University of Oxford, Oxford, UK
- Interdisciplinary Bioscience Doctoral Training Program and Exeter College, University of Oxford, Oxford, UK
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Fekrmandi F, Suresh S, Hewson S, Chowdhry VK. Impact of Severe Weather on Operations of a Radiation Oncology Department. Int J Radiat Oncol Biol Phys 2023; 117:e381-e382. [PMID: 37785291 DOI: 10.1016/j.ijrobp.2023.06.2494] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) In 2022, two major storms in Western New York brought blizzard conditions and historic snowfall amounts to the region. Beyond the immediate impact to life and property, these weather events resulted in disruptions to cancer care as a result of hazardous travel conditions, and facility closures as a result of regional travel bans. We sought to understand the impact of these disruptive incidents on departmental operations to develop better contingency plans for future occurrences. MATERIALS/METHODS The radiation treatment machine schedules for a large academic center in Western New York, as well as a neighboring affiliated satellite clinic were queried for daily treatment adherence rates from November 1, 2022 through February 4, 2023. We classified "severe weather days" based on travel advisories issued by the National Weather Service or from local county officials. Out of a total of 68 working days during the study period, 15 days were classified as having severe weather. We compared the percentage of scheduled patients treated (adherence rates) on severe weather days compared with days without severe weather. Statistical analysis was performed using a two-tailed Z-test for proportions. RESULTS Under routine operating conditions, out of a total of 7045 scheduled treatment visits, we found a mean daily treatment adherence rate of 93.57%. On severe weather days, out of a total of 2093 scheduled treatments, we found a mean daily treatment adherence rate of 77.83%. Out of these 15 days, the satellite clinic closed for a total of 3 days, while the academic center closed for 1 day. Excluding the dates of facility closure, overall treatment adherence rate was 84.76% on severe weather days (Risk Ratio: 0.91). We found that the difference in treatment adherence rates between regular and severe weather days was statistically significant (p<0.001), even when excluding dates of facility closure. CONCLUSION This study demonstrates a significant reduction in treatment adherence rates around severe winter storms, even when excluding dates of facility closure. We suggest that preparation for such incidents be a part of facility contingency planning. Weekend openings can be considered for closures ≥ 2 days, or sustained adherence rates of 85% or less for 3 or more days.
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Affiliation(s)
- F Fekrmandi
- University at Buffalo, Graduate Medical Education, Buffalo, NY; Roswell Park Comprehensive Cancer Center, Buffalo, NY
| | - S Suresh
- University at Buffalo, Buffalo, NY
| | - S Hewson
- Southtowns Radiation Oncology, Orchard Park, NY
| | - V K Chowdhry
- Roswell Park Comprehensive Cancer Center, Buffalo, NY
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Suresh S, Perret JL, Walters EH, Abramson MJ, Bowatte G, Lodge C, Lowe A, Erbas B, Thomas P, Hamilton GS, Chang AB, Dharmage SC, Bui DS. Disease burden, comorbidities and antecedents of chronic cough phenotypes in Australian adults. Pulmonology 2023:S2531-0437(23)00154-X. [PMID: 37743172 DOI: 10.1016/j.pulmoe.2023.08.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 08/21/2023] [Accepted: 08/24/2023] [Indexed: 09/26/2023] Open
Abstract
BACKGROUND AND OBJECTIVES While adult chronic cough has high burden, its phenotypes, particularly those without aetiologically related underlying conditions, are understudied. We investigated the prevalence, lung function and comorbidities of adult chronic cough phenotypes. METHODS Data from 3608 participants aged 53 years from the Tasmanian Longitudinal Health Study (TAHS) were included. Chronic cough was defined as cough on most days for >3 months in a year. Chronic cough was classified into "explained cough" if there were any one of four major cough-associated conditions (asthma, COPD, gastroesophageal reflux disease or rhinosinusitis) or "unexplained cough" if none were present. Adjusted regression analyses investigated associations between these chronic cough phenotypes, lung function and non-respiratory comorbidities at 53 years. RESULTS The prevalence of chronic cough was 10% (95%CI 9.1,11.0%) with 46.4% being "unexplained". Participants with unexplained chronic cough had lower FEV1/FVC (coefficient: -1.2% [95%CI:-2,3, -0.1]) and increased odds of comorbidities including obesity (OR=1.6 [95%CI: 1.2, 2.3]), depression (OR=1.4 [95%CI: 1.0, 2.1]), hypertension (OR=1.7 [95%CI: 1.2, 2.4]) and angina, heart attack or myocardial infarction to a lesser extent, compared to those without chronic cough. Participants with explained chronic cough also had lower lung function than both those with unexplained chronic cough and those without chronic cough. CONCLUSIONS Chronic cough is prevalent in middle-age and a high proportion is unexplained. Unexplained cough contributes to poor lung function and increased comorbidities. Given unexplained chronic cough is not a symptom of major underlying respiratory conditions it should be targeted for better understanding in both clinical settings and research.
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Affiliation(s)
- S Suresh
- University of Melbourne Medical School, Parkville, Victoria, Australia; Allergy and Lung Health Unit, Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, University of Melbourne, Melbourne, Victoria, Australia
| | - J L Perret
- Allergy and Lung Health Unit, Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, University of Melbourne, Melbourne, Victoria, Australia
| | - E H Walters
- Allergy and Lung Health Unit, Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, University of Melbourne, Melbourne, Victoria, Australia; School of Medicine, University of Tasmania, Hobart, Tasmania, Australia
| | - M J Abramson
- School of Public Health & Preventive Medicine, Monash University, Melbourne, Victoria, Australia
| | - G Bowatte
- Allergy and Lung Health Unit, Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, University of Melbourne, Melbourne, Victoria, Australia
| | - C Lodge
- Allergy and Lung Health Unit, Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, University of Melbourne, Melbourne, Victoria, Australia
| | - A Lowe
- Allergy and Lung Health Unit, Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, University of Melbourne, Melbourne, Victoria, Australia
| | - B Erbas
- School of Psychology & Public Health, La Trobe University, Bundoora, Victoria, Australia
| | - P Thomas
- Prince of Wales' Clinical School, Faculty of Medicine, University of New South Wales, Sydney, New South Wales, Australia
| | - G S Hamilton
- Monash Lung, Sleep, Allergy and Immunology, Monash Health, Clayton, Australia; School of Clinical Sciences, Monash University, Clayton, Australia
| | - A B Chang
- Dept of Respiratory and Sleep Medicine, Queensland Children's Hospital, Brisbane, Queensland, Australia; NHMRC Centre for Research Excellence in Paediatric Bronchiectasis (AusBREATHE), Child Health Division, Menzies School of Health Research, Charles Darwin University, Darwin, Northern Territory, Australia; Australian Centre for Health Services Innovation, Queensland University of Technology, Brisbane, Queensland, Australia
| | - S C Dharmage
- Allergy and Lung Health Unit, Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, University of Melbourne, Melbourne, Victoria, Australia; NHMRC-CRE Centre for Air pollution, Energy and Health Research, Australia
| | - D S Bui
- Allergy and Lung Health Unit, Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, University of Melbourne, Melbourne, Victoria, Australia
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Sathyanarayanan S, Suresh S, Saravanan CG, Uslu S. Experimental investigation on sucrose/alumina catalyst coated converter in gasoline engine exhaust gas. Environ Sci Pollut Res Int 2023; 30:61204-61216. [PMID: 35562607 DOI: 10.1007/s11356-022-20655-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 05/02/2022] [Indexed: 05/10/2023]
Abstract
In this study, a modified catalytic converter was employed to treat the harmful exhaust gas pollutants of a twin-cylinder, four-stroke spark-ignition engine. This research mainly focuses on the emission reduction of unburnt hydrocarbons, carbon monoxide, and nitrogen oxides at low light-off temperatures. A sucrolite catalyst (sucrolite) was coated over the metallic substrate present inside the catalytic converter, and exhaust gas was allowed to pass through it. A scanning electron microscope, X-ray diffraction, and Fourier transform infrared spectroscopy were used to investigate the changes in morphology, chemical compounds, and functional group elements caused by the reactions. Catalytic reactions were studied by varying the engine loads and bed temperatures, and the results were compared with those of the commercial catalytic converter. The results show that sucrose present in the catalyst was suitable at low temperatures while alumina was suitable for a wide range of temperatures. In the case of the modified catalytic converter, the maximum catalytic conversion efficiencies achieved for oxidizing CO and HC were 70.73% and 85.14%, respectively, and for reduction reaction at NOx was 60.22% which is around 42% higher than in commercial catalytic converter. As a result, this study claims that sucrolite catalyst is effective for low-temperature exhaust gas.
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Affiliation(s)
- S Sathyanarayanan
- Department of Mechanical Engineering, National Institute of Technology, Tiruchirappalli, Tamil Nadu, India
| | - S Suresh
- Department of Mechanical Engineering, National Institute of Technology, Tiruchirappalli, Tamil Nadu, India.
| | - C G Saravanan
- Department of Mechanical Engineering, Annamalai University, Chidambaram, Tamil Nadu, India
| | - Samet Uslu
- Automotive Engineering, Karabuk University, Demir-Celik Campus, Balıklarkayası Mevkii, 78050, Karabuk, Turkey
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Suresh S, Sindhumol MR, Ramadurai M, Kalvinithi D, Sangeetha M. Forecasting Particulate Matter Emissions Using Time Series Models. Nat Env Poll Tech 2023. [DOI: 10.46488/nept.2023.v22i01.020] [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: 03/06/2023] Open
Abstract
Environmental pollution is a serious concern nowadays with its disastrous impact on living organisms. In several types of pollution, Air pollution takes on a crucial role by directly affecting the respiratory system and causing fatal diseases in humans. Air pollution is a mixture of gaseous and particulate matter interweaved by different sources and emanating into the atmosphere. In particular, particle pollutants are critical in growing air pollution in India’s main cities. Forecasting the particulate matter could mitigate the complications caused by it. The employment of a model to predict future values based on previously observed values is known as time series forecasting. In this paper, the PM2.5 pollutant emission data recorded at the Kodungaiyur region of Chennai city were forecasted using three-time series models. The standard ARIMA model is compared with the deep learning-based LSTM model and Facebook’s developed Prophet algorithm. This comparison helps to identify an appropriate forecasting model for PM2.5 pollutant emission. The Root Mean Squared Error (RMSE) acquired from experimental findings is used to compare model performances.
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Suresh S, Sharma P, Yaragal RR, Mutnuri S. Study on Effectiveness of Intervention of a Vertical Flow Constructed Wetland in between Septic Tank and Soak Pit for the Treatment of Septic Tank Effluent. Nat Env Poll Tech 2023. [DOI: 10.46488/nept.2023.v22i01.047] [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: 03/08/2023] Open
Abstract
Septage comprises the solid and liquid constituents of any primary treatment system, including a Septic Tank. In this study, the wastewater collected from a septic tank is passed through a partially converted anaerobic filter, and a vertical flow constructed wetland (VFCW) before being sent to a soak pit. The main objective of this case study was to check the effectiveness of incorporating a VFCW between a septic tank and a soak pit to bring down the consequences created due to effluent seepage from soak pits to the groundwater. Conventionally, the effluent gets directly passed to soak pits after primary onsite treatment in the septic tank. The soak pit walls made of porous materials allow the gradual seepage of final effluent into the ground, polluting the groundwater reserves. We analyzed the septic tank effluent from 60 households wherein the effluent was let off into the soak pits. The various parameters analyzed with their averages were 393.83 ± 293.41 mg.L-1 for COD, 151.48 ± 94.37 mg.L-1 for BOD, 30.81 ± 13.05 mg.L-1 for NO3-, 23.35 ± 13.54 mg.L-1 for PO43-, 7.35 ± 0.31 for pH, 184.05 ± 163.20 mg.L-1 for TSS, 3.05 x 107± 2.04 x 108 CFU.100mL-1 for TC. Therefore, it is certain that the final effluent being sent into soak pits after primary treatment does not meet the Central Pollution Control Board (CPCB) discharge standards. In this case study, we were able to obtain final effluent values after VFCW treatment as 55.72 mg.L-1 for COD, 12.12 mg.L-1 for BOD, 10.2 mg.L-1 for NO3-, 3.74 mg.L-1 for PO43-, 7.41 for pH, 8.37 mg.L-1 for TSS, 379.27 mg.L-1 for TS and 51.9 CFU.100mL-1 for TC. With this case study, we were able to resolve this impediment by bringing down the values of all the parameters considered while analyzing under the limits of discharge standards set by CPCB. The removal efficiency of COD, BOD, NO3-, PO43-, pH, TSS, and TC after wetland was found to be 89.46%, 88.051, 63.484, 44.37%, 3.41%, 98.47%, 97.71%, 97.19% respectively. The study has proven that with the introduction of another decentralized treatment system between a septic tank and soak pit, it is safe to dispose of the effluent into soak pits, thereby reducing the chances of groundwater pollution considerably.
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Rangaswamy DR, Suresh S, Srinivasa E, Sannappa J. Estimation of radiological dose due to radon, thoron and their progeny in indoor atmosphere of Shivamogga district, Karnataka, India. J Radioanal Nucl Chem 2023. [DOI: 10.1007/s10967-023-08833-4] [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: 03/06/2023]
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Suresh S, Kandasamy M, Karthick Kumar S, Pugazhenthiran N. Investigation of Optical Properties and Photovoltaic Performance of Solid-State Dye-Sensitized Solar Cells Comprised of Photoanodes of Titanium Dioxide Nanoparticles Calcinated at Different Temperatures. Results in Chemistry 2023. [DOI: 10.1016/j.rechem.2023.100898] [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: 03/14/2023] Open
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13
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Kumar P, Suresh S. Deep-HAR: an ensemble deep learning model for recognizing the simple, complex, and heterogeneous human activities. Multimed Tools Appl 2023; 82:1-28. [PMID: 36851913 PMCID: PMC9946874 DOI: 10.1007/s11042-023-14492-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 04/28/2022] [Accepted: 01/31/2023] [Indexed: 06/18/2023]
Abstract
The recognition of human activities has become a dominant emerging research problem and widely covered application areas in surveillance, wellness management, healthcare, and many more. In real life, the activity recognition is a challenging issue because human beings are often performing the activities not only simple but also complex and heterogeneous in nature. Most of the existing approaches are addressing the problem of recognizing only simple straightforward activities (e.g. walking, running, standing, sitting, etc.). Recognizing the complex and heterogeneous human activities are a challenging research problem whereas only a limited number of existing works are addressing this issue. In this paper, we proposed a novel Deep-HAR model by ensembling the Convolutional Neural Networks (CNNs) and Recurrent Neural Networks (RNNs) for recognizing the simple, complex, and heterogeneous type activities. Here, the CNNs are used for extracting the features whereas RNNs are used for finding the useful patterns in time-series sequential data. The activities recognition performance of the proposed model was evaluated using three different publicly available datasets, namely WISDM, PAMAP2, and KU-HAR. Through extensive experiments, we have demonstrated that the proposed model performs well in recognizing all types of activities and has achieved an accuracy of 99.98%, 99.64%, and 99.98% for simple, complex, and heterogeneous activities respectively.
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Affiliation(s)
- Prabhat Kumar
- Department of Computer Science, Institute of Science, Banaras Hindu University, Varanasi, 221 005 India
| | - S Suresh
- Department of Computer Science, Institute of Science, Banaras Hindu University, Varanasi, 221 005 India
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Chinnarani M, Prabu K, Suresh S. Plasmonic Silver Loaded Anatase Titanium Dioxide Nanospheres Photoanode for Dye-Sensitized Solar Cell. Results in Chemistry 2023. [DOI: 10.1016/j.rechem.2023.100835] [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: 02/05/2023] Open
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Pugazhenthiran N, Sathishkumar P, Albormani O, Murugesan S, Kandasamy M, Selvaraj M, Suresh S, Kumar SK, Contreras D, Váldes H, Mangalaraja RV. Silver nanoparticles modified ZnO nanocatalysts for effective degradation of ceftiofur sodium under UV-vis light illumination. Chemosphere 2023; 313:137515. [PMID: 36495978 DOI: 10.1016/j.chemosphere.2022.137515] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [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: 07/21/2022] [Revised: 11/14/2022] [Accepted: 12/07/2022] [Indexed: 06/17/2023]
Abstract
Light-induced photocatalytic degradation of ceftiofur sodium (CFS) has been assessed in the presence of plasmonic zinc oxide nanostructures (ZnONSTs), like, ZnO nanoparticles, ZnO nanorods (ZnONRs) and ZnO nanoflowers (ZnONFs). Silver nanoparticles (Ag NPs) loaded ZnO nanostructures (Ag-ZnONSTs) are obtained through seed-assisted chemical reaction followed by chemical reduction of silver. The surface modification of ZnO nanostructures by Ag NPs effectually altered their optical properties. Further, the surface plasmonic effect of Ag NPs facilitates visible light absorption by ZnONSTs and improved the photogenerated electron and hole separation, which makes the ZnONSTs a more active photocatalyst than TiO2 (P25) nanoparticles. Especially, Ag-ZnONRs showed higher CFS oxidation rate constant (k' = 4.6 × 10-4 s-1) when compared to Ag-ZnONFs (k' = 2.8 × 10-4 s-1) and Ag-ZnONPs (k' = 2.5 × 10-4 s-1), owing to their high aspect ratio (60:1). The unidirectional transport of photogenerated charge carriers on the Ag-ZnONRs may be accountable for the observed high photocatalytic oxidation of CFS. The photocatalytic oxidation of CFS mainly proceeds through •OH radicals generated on the Ag-ZnONRs surface under light illumination. In addition, heterogeneous activation of peroxymonosulfate by Ag-ZnONRs accelerates the rate of photocatalytic mineralization of CFS. The quantification of oxidative radicals supports the proposed CFS oxidation mechanism. Stability studies of plasmonic Ag-ZnONSTs strongly suggests that it could be useful to clean large volume of pharmaceutical wastewater under direct solar light irradiation.
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Affiliation(s)
- N Pugazhenthiran
- Laboratorio de Fotoquímica y Fotofísica, Departamento de Química, Universidad Técnica Federico Santa María, Campus Casa Central, Av. España 1680, Valparaíso, Chile.
| | - P Sathishkumar
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology (VIT), Vellore, 632 014, India
| | - Omeer Albormani
- Department of Chemistry, Faculty of Science, King Khalid University, Abha-61413, Saudi Arabia
| | - S Murugesan
- Department of Inorganic Chemistry, School of Chemistry Madurai Kamaraj University, Madurai-625021, Tamil Nadu, India.
| | - M Kandasamy
- Department of Chemistry, K. Ramakrishnan College of Technology, Tiruchirappalli-621 112, Tamil Nadu, India
| | - M Selvaraj
- Department of Chemistry, Faculty of Science, King Khalid University, Abha-61413, Saudi Arabia.
| | - S Suresh
- PG & Research Department of Physics, Sri Vidya Mandir Arts & Science College (Autonomous), Katteri-636 902, Uthangarai, Tamil Nadu, India
| | - S Karthick Kumar
- Department of Physics, Sethu Institute of Technology, Kariapatti-626115, Virudhunagar, Tamil Nadu, India
| | - D Contreras
- Department of Analytical and Inorganic Chemistry, Faculty of Chemical Sciences, University of Concepcion, Concepcion 4070409, Chile
| | - H Váldes
- Laboratorio de Tecnologías Limpias, Facultad de Ingeniería, Universidad Católica de la Santísima Concepción, Concepción, Chile
| | - R V Mangalaraja
- Faculty of Engineering and Science, Universidad Adolfo Ibáñez, Diagonal las Torres 2640, Peñalolén, Santiago, Chile
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Samuel J, Eugin Shaji J, Sahaya Jude Dhas S, Suresh S, Sherlin Vinita V, Biju CS. UV‐blocking performance and antibacterial activity of Cd, Ba co‐doped ZnO nanomaterials prepared by a facile wet chemical method. SURF INTERFACE ANAL 2023. [DOI: 10.1002/sia.7191] [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: 01/06/2023]
Affiliation(s)
- J. Samuel
- Reg.No: 20123082131014, Research scholar, Department of Physics and Research Centre, Malankara Catholic College Mariagiri 629153 Tamilnadu India
- Affiliated to Manonmaniam Sundaranar University Abishekapatti 627012 Tirunelveli Tamilnadu India
| | - J. Eugin Shaji
- Department of Chemistry, Annai Velankanni College Tholayavattam 629157 Tamil Nadu India
- Affiliated to Manonmaniam Sundaranar University Abishekapatti 627012 Tirunelveli Tamilnadu India
| | - S. Sahaya Jude Dhas
- Department of Physics, Kings Engineering College Sriperumbudur 602 117 Chennai Tamilnadu India
| | - S. Suresh
- Department of Physics, Saveetha Engineering College (Autonomous) Thandalam 602105 Tamilnadu India
| | - V. Sherlin Vinita
- Research scholar, Department of Physics and Research Centre, Malankara Catholic College Mariagiri 629153 Tamilnadu India
- Affiliated to Manonmaniam Sundaranar University Abishekapatti 627012 Tirunelveli Tamilnadu India
| | - C. S. Biju
- Assistant Professor, Department of Physics, Stella Mary's College of Engineering Aruthenganvilai Azhikal 629202 Tamil Nadu India
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Dey S, Anand U, Kumar V, Kumar S, Ghorai M, Ghosh A, Kant N, Suresh S, Bhattacharya S, Bontempi E, Bhat SA, Dey A. Microbial strategies for degradation of microplastics generated from COVID-19 healthcare waste. Environ Res 2023; 216:114438. [PMID: 36179880 PMCID: PMC9514963 DOI: 10.1016/j.envres.2022.114438] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [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: 03/05/2022] [Revised: 08/20/2022] [Accepted: 09/22/2022] [Indexed: 05/10/2023]
Abstract
COVID-19 pandemic has led to the generation of massive plastic wastes, comprising of onetime useable gloves, masks, tissues, and other personal protective equipment (PPE). Recommendations for the employ of single-use disposable masks made up of various polymeric materials like polyethylene, polyurethane, polyacrylonitrile, and polypropylene, polystyrene, can have significant aftermath on environmental, human as well as animal health. Improper disposal and handling of healthcare wastes and lack of proper management practices are creating serious health hazards and an extra challenge for the local authorities designated for management of solid waste. Most of the COVID-19 medical wastes generated are now being treated by incineration which generates microplastic particles (MPs), dioxin, furans, and various toxic metals, such as cadmium and lead. Moreover, natural degradation and mechanical abrasion of these wastes can lead to the generation of MPs which cause a serious health risk to living beings. It is a major threat to aquatic lives and gets into foods subsequently jeopardizing global food safety. Moreover, the presence of plastic is also considered a threat owing to the increased carbon emission and poses a profound danger to the global food chain. Degradation of MPs by axenic and mixed culture microorganisms, such as bacteria, fungi, microalgae etc. can be considered an eco-sustainable technique for the mitigation of the microplastic menace. This review primarily deals with the increase in microplastic pollution due to increased use of PPE along with different disinfection methods using chemicals, steam, microwave, autoclave, and incineration which are presently being employed for the treatment of COVID-19 pandemic-related wastes. The biological treatment of the MPs by diverse groups of fungi and bacteria can be an alternative option for the mitigation of microplastic wastes generated from COVID-19 healthcare waste.
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Affiliation(s)
- Satarupa Dey
- Department of Botany, Shyampur Siddheswari Mahavidyalaya (affiliated to University of Calcutta), Howrah-711312, West Bengal, India.
| | - Uttpal Anand
- Zuckerberg Institute for Water Research, Jacob Blaustein Institutes for Desert Research, Ben Gurion University of the Negev, Midreshet Ben Gurion, 8499000, Israel
| | - Vineet Kumar
- Waste Re-processing Division, CSIR-National Environmental Engineering Research Institute (CSIR-NEERI), Nehru Marg, Nagpur, 440 020, Maharashtra, India; Department of Basic and Applied Sciences, School of Engineering and Sciences, GD Goenka University, Sohna Road, Gurugram, Haryana,122103, India.
| | - Sunil Kumar
- Waste Re-processing Division, CSIR-National Environmental Engineering Research Institute (CSIR-NEERI), Nehru Marg, Nagpur, 440 020, Maharashtra, India
| | - Mimosa Ghorai
- Department of Life Sciences, Presidency University, 86/1 College Street, Kolkata, 700073, West Bengal, India
| | - Arabinda Ghosh
- Department of Botany, Gauhati University, Guwahati, 781014, Assam, India
| | - Nishi Kant
- Department of Chemical Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, Delhi, 110016, India
| | - S Suresh
- Department of Chemical Engineering, Maulana Azad National Institute of Technology, Bhopal, 462 003, Madhya Pradesh, India
| | - Sayan Bhattacharya
- School of Ecology and Environment Studies, Nalanda University, Rajgir, Nalanda, 803116, Bihar, India
| | - Elza Bontempi
- INSTM and Chemistry for Technologies Laboratory, Department of Mechanical and Industrial Engineering, University of Brescia, Via Branze, 38, 25123, Brescia, Italy
| | - Sartaj Ahmad Bhat
- Waste Re-processing Division, CSIR-National Environmental Engineering Research Institute (CSIR-NEERI), Nehru Marg, Nagpur, 440 020, Maharashtra, India; River Basin Research Center, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
| | - Abhijit Dey
- Department of Life Sciences, Presidency University, 86/1 College Street, Kolkata, 700073, West Bengal, India.
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Celik H, Agrawal B, Barker A, D'Errico L, Vuylsteke A, Suresh S, Weir-McCall JR. Routine whole-body CT identifies clinically significant findings in patients supported with veno-venous extracorporeal membrane oxygenation. Clin Radiol 2023; 78:18-23. [PMID: 36198514 DOI: 10.1016/j.crad.2022.08.143] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 08/15/2022] [Accepted: 08/28/2022] [Indexed: 01/07/2023]
Abstract
AIM To determine the yield of routine whole-body computed tomography (CT) following extracorporeal membrane oxygenation (ECMO) initiation and to assess the association of these findings with prognosis. MATERIALS AND METHODS One hundred and ninety-eight consecutive patients with acute respiratory failure admitted for ECMO support between January 2015 and December 2019 who underwent whole-body CT performed within 48 h of ECMO initiation were examined in this single-institution retrospective study. CT findings were divided into three categories: clinically significant findings that may affect immediate management strategy or short-term outcomes; findings not related to hospital stay or outcome but require further workup; and benign findings that do not require further investigation. Logistic regression analysis was used to assess the association of CT findings with 7- and 30-day survival. RESULTS Clinically significant findings were present in 147 (74%) patients, findings requiring further workup were found in 82 (41%) patients, and benign findings were identified in 180 (90%) of the patients. Patients with clinically significant neurological findings had an elevated risk of death at 7 days (odds ratio [OR] 3.58; 95% confidence interval [CI] 1.29; 9.93; p=0.01), but not 30 days. Increasing numbers of clinically significant findings were associated with greater odds of mortality at 7 days (OR 1.70; 95% CI 1.08; 2.67; p=0.02) and 30 days (OR 1.41; 95% CI 1.02; 1.96; p=0.04). CONCLUSIONS Imaging patients at the point of admission for VV-ECMO with CT frequently identified clinically significant abnormalities with prognostic implications of these. These findings provide support for the use of more routine CT at the point of treatment escalation with prospective studies now required.
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Affiliation(s)
- H Celik
- Department of Radiology, Dokuz Eylul University Faculty of Medicine, Izmir, Turkey.
| | - B Agrawal
- Department of Radiology, Royal Papworth Hospital, Cambridge, UK
| | - A Barker
- Department of Radiology, Royal Papworth Hospital, Cambridge, UK
| | - L D'Errico
- Department of Radiology, Royal Papworth Hospital, Cambridge, UK
| | - A Vuylsteke
- Department of Radiology, Royal Papworth Hospital, Cambridge, UK
| | - S Suresh
- Department of Radiology, Royal Papworth Hospital, Cambridge, UK
| | - J R Weir-McCall
- Department of Radiology, Royal Papworth Hospital, Cambridge, UK; Department of Radiology, University of Cambridge, Cambridge, UK
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Sriraam N, Sushma TV, Suresh S. A Computer-Aided Markov Random Field Segmentation Algorithm for Assessing Fetal Ventricular Chambers. Crit Rev Biomed Eng 2023; 51:15-27. [PMID: 37522538 DOI: 10.1615/critrevbiomedeng.2023046829] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
Congenital heart disease (CHD) is the most widely occurring congenital defect and accounts to about 28% of the overall congenital defects. Analysis of the development of the fetal heart thus plays an important role for detection of abnormality in early stages and to take corrective measures. Cardiac chamber analysis is one of the important diagnosing methods. Segmentation of the cardiac chambers must be done appropriately to avoid false interpretations. Effective segmentation of fetal ventricular chambers is a challenging task as the speckle noise inherent in ultrasound images cause blurring of the boundaries of anatomical structures. Several segmentation techniques have been proposed for extracting the fetal cardiac chambers. This article discusses the performance evaluation of automated, probability based segmentation approach, and Markov random field (MRF) for segmenting the fetal ventricular chambers of ultrasonic cineloop sequences. 837 ultrasonic biometery sequences of various gestations were collected from local diagnostic center after due ethical clearance and used for the study. In order to assess the efficiency of the segmentation technique, four metrics such as dice coefficient, true positive ratio (TPR), false positive ratio (FPR), similarity ratio (SIR), and precision (PR) were used. In order to perform ground truth validation, 56% of the data used in this study were annotated by clinical experts. The automated segmentation yielded comparable results with manual annotation. The technique results in average value of 0.68 for Dice coefficient, 0.723 for TPR, 0.604 for SIR, and 0.632 for PR.
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Affiliation(s)
- Natarajan Sriraam
- Centre for Medical Electronics and Computing, MS Ramaiah Institute of Technology, Bangalore 560054, India
| | - T V Sushma
- Centre of Imaging Technologies, MS Ramaiah Institute of Technology, Bangalore 560054, India
| | - S Suresh
- Mediscan Systems Pvt. Ltd., Chennai 600014, India
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Stephen TL, Breningstall B, Suresh S, McGill CJ, Pike CJ. APOE genotype and biological sex regulate astroglial interactions with amyloid plaques in Alzheimer's disease mice. J Neuroinflammation 2022; 19:286. [PMID: 36457019 PMCID: PMC9714101 DOI: 10.1186/s12974-022-02650-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Accepted: 11/20/2022] [Indexed: 12/03/2022] Open
Abstract
The most significant genetic risk factor for developing late-onset Alzheimer's disease (AD) is the ε4 allele of apolipoprotein E (APOE4). APOE genotype and biological sex are key modulators of microglial and astroglial function, which exert multiple effects on AD pathogenesis. Here, we show astroglial interactions with amyloid plaques in the EFAD transgenic mouse model of AD. Using confocal microscopy, we observed significantly lower levels of astrocytic plaque coverage and plaque compaction (beneficial effects of glial barrier formation) with APOE4 genotype and female sex. Conversely, neurite damage and astrocyte activation in the plaque environment were significantly higher in APOE4 carriers and female mice. Astrocyte coverage of plaques was highest in APOE3 males and poorest in APOE4 females. Collectively, our findings provide new insights into the roles of astroglia and highlight the importance of addressing independent and interactive effects of APOE genotype and biological sex in understanding processes contributing to AD pathogenesis.
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Affiliation(s)
- T. L. Stephen
- grid.42505.360000 0001 2156 6853Leonard Davis School of Gerontology, University of Southern California, 3715 McClintock Avenue, Los Angeles, CA 90089-0191 USA
| | - B. Breningstall
- grid.42505.360000 0001 2156 6853Leonard Davis School of Gerontology, University of Southern California, 3715 McClintock Avenue, Los Angeles, CA 90089-0191 USA
| | - S. Suresh
- grid.42505.360000 0001 2156 6853Leonard Davis School of Gerontology, University of Southern California, 3715 McClintock Avenue, Los Angeles, CA 90089-0191 USA
| | - C. J. McGill
- grid.42505.360000 0001 2156 6853Leonard Davis School of Gerontology, University of Southern California, 3715 McClintock Avenue, Los Angeles, CA 90089-0191 USA
| | - C. J. Pike
- grid.42505.360000 0001 2156 6853Leonard Davis School of Gerontology, University of Southern California, 3715 McClintock Avenue, Los Angeles, CA 90089-0191 USA
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Howarth T, Heraganahally S, Gentin N, Jonas C, Williamson B, Suresh S. Comparison of Polysomnographic Characteristics between Low Birthweight and Normal Birthweight Children in the Northern Territory of Australia. Sleep Med 2022. [DOI: 10.1016/j.sleep.2022.05.523] [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: 11/28/2022]
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Sridhar P, Anuradha P, Roopesh K, Suresh S, Hamid M, Venkatachala K, Mohamad B, Radheshyam N, Bilimagga R, Gupta M, Kallur K, Kumar BA. Adaptive Dose Escalation in Muscle Invasive Bladder Carcinoma (MIBC) – Impact on Organ Preservation and Clinical Outcomes. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1127] [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: 11/28/2022]
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Sridhar P, Anuradha P, Taj CF, Suresh S, Roopesh K, Ghosh R, Bj S, Bandemagal M, Gupta M, Kallur K, KS G, BS A. Efficacy of SBRT in High Volume Metastatic Carcinoma Breast – A Berry Picking Approach in the Era of High Precision Radiotherapy. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.700] [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: 11/27/2022]
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Venkatesan S, Suresh S, Ramu P, Arumugam J, Thambidurai S, Pugazhenthiran N. Methylene Blue Dye Degradation Potential of Zinc Oxide Nanoparticles Bioreduced using Solanum trilobatum Leaf Extract. Results in Chemistry 2022. [DOI: 10.1016/j.rechem.2022.100637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Mandal S, Suresh S, Priya N, Banothu R, Mohan R, Sreeram KJ. Phthalate migration and its effects on poly(vinyl chloride)-based footwear: pathways, influence of environmental conditions, and the possibility of human exposure. Environ Sci Process Impacts 2022; 24:1844-1854. [PMID: 36107023 DOI: 10.1039/d2em00059h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The study of phthalate migration in footwear is important from an environmental viewpoint and the consumer health perspective as it remains in direct contact with the user for a long time. In this research article, the migration of phthalate, specifically di-(2-ethylhexyl) phthalate (DEHP), from the poly(vinyl chloride) (PVC) shoe sole to the attached leather insole has been studied for six months under different environmental conditions. After one month, the DEHP concentration in the PVC sole decreased by 45-58%, and that in the leather insole increased from 0.35 mg g-1 to 38-58 mg g-1. After six months, about 90% of the DEHP has been lost from the PVC sole, and that in the leather insole reached close to its initial value (value before the experiment). The migration rate depends on the environmental conditions and the presence of phthalate soluble solvents in the sole-adhesive-insole system of the footwear. The influence of DEHP migration on the physicochemical characteristics of the PVC sole and leather insole has been studied by Fourier transform infrared spectroscopy-attenuated total reflectance (FTIR-ATR), thermo-gravimetric analysis (TGA), and differential scanning calorimetry (DSC). The migration and emission pathways of DEHP, the influence of environmental conditions, and the possibility of human exposure to phthalate through footwear are discussed.
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Affiliation(s)
- Sujata Mandal
- CLRI Center for Analysis, Testing, Evaluation and Reporting Services (CATERS), CSIR-Central Leather Research Institute (CLRI), Chennai-600020, India.
| | - S Suresh
- CLRI Center for Analysis, Testing, Evaluation and Reporting Services (CATERS), CSIR-Central Leather Research Institute (CLRI), Chennai-600020, India.
| | - N Priya
- CLRI Center for Analysis, Testing, Evaluation and Reporting Services (CATERS), CSIR-Central Leather Research Institute (CLRI), Chennai-600020, India.
| | - Ravi Banothu
- CLRI Center for Analysis, Testing, Evaluation and Reporting Services (CATERS), CSIR-Central Leather Research Institute (CLRI), Chennai-600020, India.
| | - R Mohan
- CLRI Center for Analysis, Testing, Evaluation and Reporting Services (CATERS), CSIR-Central Leather Research Institute (CLRI), Chennai-600020, India.
| | - K J Sreeram
- CLRI Center for Analysis, Testing, Evaluation and Reporting Services (CATERS), CSIR-Central Leather Research Institute (CLRI), Chennai-600020, India.
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Anand U, Vaishnav A, Sharma SK, Sahu J, Ahmad S, Sunita K, Suresh S, Dey A, Bontempi E, Singh AK, Proćków J, Shukla AK. Current advances and research prospects for agricultural and industrial uses of microbial strains available in world collections. Sci Total Environ 2022; 842:156641. [PMID: 35700781 DOI: 10.1016/j.scitotenv.2022.156641] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [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: 01/17/2022] [Revised: 06/08/2022] [Accepted: 06/08/2022] [Indexed: 06/15/2023]
Abstract
Microorganisms are an important component of the ecosystem and have an enormous impact on human lives. Moreover, microorganisms are considered to have desirable effects on other co-existing species in a variety of habitats, such as agriculture and industries. In this way, they also have enormous environmental applications. Hence, collections of microorganisms with specific traits are a crucial step in developing new technologies to harness the microbial potential. Microbial culture collections (MCCs) are a repository for the preservation of a large variety of microbial species distributed throughout the world. In this context, culture collections (CCs) and microbial biological resource centres (mBRCs) are vital for the safeguarding and circulation of biological resources, as well as for the progress of the life sciences. Ex situ conservation of microorganisms tagged with specific traits in the collections is the crucial step in developing new technologies to harness their potential. Type strains are mainly used in taxonomic study, whereas reference strains are used for agricultural, biotechnological, pharmaceutical research and commercial work. Despite the tremendous potential in microbiological research, little effort has been made in the true sense to harness the potential of conserved microorganisms. This review highlights (1) the importance of available global microbial collections for man and (2) the use of these resources in different research and applications in agriculture, biotechnology, and industry. In addition, an extensive literature survey was carried out on preserved microorganisms from different collection centres using the Web of Science (WoS) and SCOPUS. This review also emphasizes knowledge gaps and future perspectives. Finally, this study provides a critical analysis of the current and future roles of microorganisms available in culture collections for different sustainable agricultural and industrial applications. This work highlights target-specific potential microbial strains that have multiple important metabolic and genetic traits for future research and use.
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Affiliation(s)
- Uttpal Anand
- Department of Life Sciences, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Anukool Vaishnav
- Department of Biotechnology, Institute of Applied Sciences & Humanities, GLA University, Mathura, Uttar Pradesh 281406, India; Department of Plant and Microbial Biology, University of Zürich, Zollikerstrasse 107, CH-8008 Zürich, Switzerland; Plant-Soil Interaction Group, Agroscope (Reckenholz), Reckenholzstrasse 191, 8046 Zürich, Switzerland
| | - Sushil K Sharma
- National Agriculturally Important Microbial Culture Collection (NAIMCC), ICAR-National Bureau of Agriculturally Important Microorganisms (ICAR-NBAIM), Mau 275 103, Uttar Pradesh, India.
| | - Jagajjit Sahu
- GyanArras Academy, Gothapatna, Malipada, Bhubaneswar, Odisha 751029, India
| | - Sarfaraz Ahmad
- Department of Botany, Jai Prakash University, Saran, Chhapra 841301, Bihar, India
| | - Kumari Sunita
- Department of Botany, Faculty of Science, Deen Dayal Upadhyay Gorakhpur University, Gorakhpur, Uttar Pradesh 273009, India
| | - S Suresh
- Department of Chemical Engineering, Maulana Azad National Institute of Technology, Bhopal 462 003, Madhya Pradesh, India
| | - Abhijit Dey
- Department of Life Sciences, Presidency University, 86/1 College Street, Kolkata 700073, West Bengal, India
| | - Elza Bontempi
- INSTM and Chemistry for Technologies Laboratory, Department of Mechanical and Industrial Engineering, University of Brescia, Via Branze, 38, 25123 Brescia, Italy
| | - Amit Kishore Singh
- Department of Botany, Bhagalpur National College, (A Constituent unit of Tilka Manjhi Bhagalpur University), Bhagalpur 812007, Bihar, India
| | - Jarosław Proćków
- Department of Plant Biology, Institute of Environmental Biology, Wrocław University of Environmental and Life Sciences, Kożuchowska 5b, 51-631 Wrocław, Poland.
| | - Awadhesh Kumar Shukla
- Department of Botany, K.S. Saket P.G. College, Ayodhya (affiliated to Dr. Rammanohar Lohia Avadh University, Ayodhya) 224123, Uttar Pradesh, India.
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Suresh S, Sindhu V. CeO2/PANI/MoS2 composite electrode for symmetric supercapacitor application. J INDIAN CHEM SOC 2022. [DOI: 10.1016/j.jics.2022.100727] [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: 11/30/2022]
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Suresh S, Elumalai R, Matcha J, Sekar M, Gunabooshanam B. POS-074 Recurrent subcutaneous Phaeohyphomycosis with bone involvement after kidney transplant: A case report. Kidney Int Rep 2022. [DOI: 10.1016/j.ekir.2022.07.092] [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: 10/14/2022] Open
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Palepa A, Morrison TEM, Suresh S, Arulampalam T. 883 Clinical Case Report: Recurrent Non-Tuberculous Psoas Abscess with Associated Discitis. Br J Surg 2022. [DOI: 10.1093/bjs/znac269.164] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Abstract
Introduction
Following the discovery of modern anti-tuberculosis treatments, psoas abscesses secondary to Pott's disease of the spine rarely occur in developed countries. We present a case of a recurrent non-tuberculous psoas abscess communicating with the spine and pleural cavity, presenting as an abdominal mass.
Case
A 72-year-old man presented with a left upper quadrant mass, pain, abdominal distension and raised inflammatory markers. Cross-sectional imaging with CT and MRI revealed a large left-sided psoas abscess with a pleural effusion tracking to the retroperitoneum and associated recurrent discitis. The patient was commenced on intra-venous antibiotics and the collection was accessed via a radiologically placed drain to the retroperitoneum.
Discussion
Spinal infections may present with a lump below the inguinal ligament due to pus tracking down the psoas tendon sheath. Irritation of the psoas muscle may also present with pain on hip extension due to muscular spasm. The most common causative agent of primary psoas abscesses is Staphylococcus Aureus. Discitis is more common in men and shows a bimodal age distribution in presentation, predominantly affecting children and then those in the 6th-7th decade of life.
Learning points
Retroperitoneal disease should be considered in a patient who presents with an abdominal mass. In patients who present with a psoas abscess or an empyema communicating with the retroperitoneum, a spinal source should be considered. Crohn's disease is a common cause of secondary psoas abscesses and should also be considered. Cultures for mycobacteria should be obtained to exclude Tuberculosis as an underlying cause.
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Affiliation(s)
- A Palepa
- Colchester General Hospital , Colchester , United Kingdom
| | - TEM Morrison
- Colchester General Hospital , Colchester , United Kingdom
| | - S Suresh
- Colchester General Hospital , Colchester , United Kingdom
| | - T Arulampalam
- Colchester General Hospital , Colchester , United Kingdom
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Devaraj S, Madian N, Suresh S. Mathematical approach for segmenting chromosome clusters in metaspread images. Exp Cell Res 2022; 418:113251. [PMID: 35691379 DOI: 10.1016/j.yexcr.2022.113251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 05/15/2022] [Accepted: 06/06/2022] [Indexed: 11/04/2022]
Abstract
Karyotyping is an examination that helps in detecting chromosomal abnormalities. Chromosome analysis is a very challenging task which requires various steps to obtain a karyotype. The challenges associated with chromosome analysis are overlapping and touching of chromosomes. The input considered for chromosome analysis is the metaspread G band chromosomes. The proposed work mainly focus on separation the overlapped and touching chromosomes which is considered to be the major challenge in karyotype. There are various research contribution in chromosome analysis in progress which includes both low (Machine Learning) and high level (Deep Learning) methods. This paper proposes a mathematical based approaches which is very effective in segmentation of clustered chromosomes. The accuracy of segmentation is robust compared to high level approaches.
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Affiliation(s)
| | - Nirmala Madian
- Department of BME, Dr.N.G.P Institute of Technology, Coimbatore, India.
| | - S Suresh
- Mediscan Systems, Chennai, India
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Suresh S, Modi R, Sharma AK, Arisutha S, Sillanpää M. Pre-COVID-19 pandemic: effects on air quality in the three cities of India using fuzzy MCDM model. J Environ Health Sci Eng 2022; 20:41-51. [PMID: 34868597 PMCID: PMC8627843 DOI: 10.1007/s40201-021-00754-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Accepted: 10/23/2021] [Indexed: 06/13/2023]
Abstract
Due to urbanization and industrialization pollution level increases. Air pollution directly affects to human health. Air Quality Indices (AQI) method is related to measuring the concentration of different pollutants PM10, NO2, SO2 and other pollutants. The fuzzy Logic air quality index calculates in single value of AQI defines limits 0 to 1. In this study, a comparison of air quality data of three cities was conducted with the help of fuzzy logic algorithm. It used to evaluating Indices through fuzzy multi criteria decision making (MCDM) framework in which linguistic terms of experts opinion and perception, accordingly computing matrix is constructed for sub criteria. There are five linguistic terms used in this framework to create membership functions such as high significant, significant, average significant, low significant and not significant. The three cities, Bangalore, Mysore, and Hubli-Dharwad air quality datas was taken for analysis and evaluating indices during pre-COVID years (2017, 2018, and 2019). The AQI value shows that Bangalore has the highest pollution level while Mysore has the lowest. Using the fuzzy theory, results show that Bangalore and Hubli-Dharwad decrease in pollution level by -0.074921% and -0.04797%. Negative sign shows the decrease pollution level while Mysore increase pollution level by 0.011792%. Overall the results show that AQI of Mysore city is low compared to Bangalore and Hubli-Dharwad. Also, this study reveals air quality disseminated through industrial processes and automobile emissions in India cities during pre-COVID pandemic years.
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Affiliation(s)
- S. Suresh
- Department of Chemical Engineering, Maulana Azad National Institute of Technology Bhopal, 462 003 Madhya Pradesh, India
| | - Rahul Modi
- Department of Civil Engineering, Maulana Azad National Institute of Technology Bhopal, 462 003 Madhya Pradesh, India
| | - A. K. Sharma
- Department of Civil Engineering, Maulana Azad National Institute of Technology Bhopal, 462 003 Madhya Pradesh, India
| | - S. Arisutha
- Energy Centre, Maulana Azad National Institute of Technology & Eco-Science and Technology, Bhopal-462 003, Madhya Pradesh, India
| | - Mika Sillanpää
- Institute of Research and Development, Duy Tan University, Da Nang, 550000 Vietnam
- Faculty of Environment and Chemical Engineering, Duy Tan University, Da Nang, 550000 Vietnam
- Department of Chemical Engineering, School of Mining, Metallurgy and Chemical Engineering, University of Johannesburg, P. O. Box 17011, Doornfontein, 2028 South Africa
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Affiliation(s)
- S Suresh
- Department of Internal Medicine, Post Graduate Institute of Medical Education and Research, 4th floor, F block, Chandigarh, India
| | - A K Pannu
- Department of Internal Medicine, Post Graduate Institute of Medical Education and Research, 4th floor, F block, Chandigarh, India
| | - N Arora
- Department of Internal Medicine, Post Graduate Institute of Medical Education and Research, 4th floor, F block, Chandigarh, India
| | - M Chabra
- Department of Radiodiagnosis, Post Graduate Institute of Medical Education and Research, 4th floor, F block, Chandigarh, 160012 India
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Joslin Ananth N, Gowri Shankar Rao R, Sherlin Vinita V, Samuel J, Shabna S, Shajin Shinu PM, Suresh S, Samson Y, Biju CS. Structural, Raman and optical investigations of TiO 2 nanoparticles prepared using hexamethylenetetramine. PHOSPHORUS SULFUR 2022. [DOI: 10.1080/10426507.2021.1989684] [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: 10/20/2022]
Affiliation(s)
- N. Joslin Ananth
- Department of Physics and Research Centre, Malankara Catholic College, Kanyakumari, Tamilnadu, India
- Manonmaniam Sundaranar University, Abishekapatti, Tamilnadu, India
| | - R. Gowri Shankar Rao
- Department of Physics, Veltech Rangarajan Dr. Sagunthala R& D Institute of Science and Technology, Avadi, Chennai, Tamilnadu, India
| | - V. Sherlin Vinita
- Department of Physics and Research Centre, Malankara Catholic College, Kanyakumari, Tamilnadu, India
- Manonmaniam Sundaranar University, Abishekapatti, Tamilnadu, India
| | - J. Samuel
- Department of Physics and Research Centre, Malankara Catholic College, Kanyakumari, Tamilnadu, India
- Manonmaniam Sundaranar University, Abishekapatti, Tamilnadu, India
| | - S. Shabna
- Department of Physics and Research Centre, Malankara Catholic College, Kanyakumari, Tamilnadu, India
- Manonmaniam Sundaranar University, Abishekapatti, Tamilnadu, India
| | - P. M. Shajin Shinu
- Department of Physics and Research Centre, Malankara Catholic College, Kanyakumari, Tamilnadu, India
- Manonmaniam Sundaranar University, Abishekapatti, Tamilnadu, India
| | - S. Suresh
- Department of Physics, Saveetha Engineering College (Autonomous), Chennai, Tamilnadu, India
| | - Y. Samson
- Manonmaniam Sundaranar University, Abishekapatti, Tamilnadu, India
- Department of Physics, Annai Velankanni College, Kanyakumari, Tamilnadu, India
| | - C. S. Biju
- Department of Physics and Research Centre, Malankara Catholic College, Kanyakumari, Tamilnadu, India
- Manonmaniam Sundaranar University, Abishekapatti, Tamilnadu, India
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Sherlin Vinita V, Gowri Shankar Rao R, Samuel J, Shabna S, Joslin Ananth N, Shajin Shinu PM, Suresh S, Samson Y, Biju CS. Structural, Raman and optical investigations of barium titanate nanoparticles. PHOSPHORUS SULFUR 2022. [DOI: 10.1080/10426507.2021.1993850] [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: 10/20/2022]
Affiliation(s)
- V. Sherlin Vinita
- Department of Physics and Research Centre, Malankara Catholic College, Kanyakumari, Tamilnadu, India
- Manonmaniam Sundaranar University, Tirunelveli, Tamilnadu, India
| | - R. Gowri Shankar Rao
- Department of Physics, Veltech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology, Chennai, Tamilnadu, India
| | - J. Samuel
- Department of Physics and Research Centre, Malankara Catholic College, Mariagiri, Tamilnadu, India
- Manonmaniam Sundaranar University, Tirunelveli, Tamilnadu, India
| | - S. Shabna
- Department of Physics and Research Centre, Malankara Catholic College, Mariagiri, Tamilnadu, India
- Manonmaniam Sundaranar University, Tirunelveli, Tamilnadu, India
| | - N. Joslin Ananth
- Department of Physics and Research Centre, Malankara Catholic College, Mariagiri, Tamilnadu, India
- Manonmaniam Sundaranar University, Tirunelveli, Tamilnadu, India
| | - P. M. Shajin Shinu
- Department of Physics and Research Centre, Malankara Catholic College, Mariagiri, Tamilnadu, India
- Manonmaniam Sundaranar University, Tirunelveli, Tamilnadu, India
| | - S. Suresh
- Department of Physics, Saveetha Engineering College (Autonomous), Chennai, Tamilnadu, India
| | - Y. Samson
- Department of Physics, Annai Velankanni College, Kanniyakumari, Tamilnadu, India
- Manonmaniam Sundaranar University, Tirunelveli, Tamilnadu, India
| | - C. S. Biju
- Department of Physics and Research Centre, Malankara Catholic College, Mariagiri, Tamilnadu, India
- Manonmaniam Sundaranar University, Tirunelveli, Tamilnadu, India
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Venkatesan S, Suresh S, Ramu P, Kandasamy M, Arumugam J, Thambidurai S, Prabu K, Pugazhenthiran N. Biosynthesis of zinc oxide nanoparticles using Euphorbia milii leaf constituents: Characterization and improved photocatalytic degradation of methylene blue dye under natural sunlight. J INDIAN CHEM SOC 2022. [DOI: 10.1016/j.jics.2022.100436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Suresh S, Rangaswamy DR, Sannappa J, Dongre S, Srinivasa E, Rajesh S. Estimation of natural radioactivity and assessment of radiation hazard indices in soil samples of Uttara Kannada district, Karnataka, India. J Radioanal Nucl Chem 2022. [DOI: 10.1007/s10967-021-08145-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Srinivasa E, Rangaswamy DR, Suresh S, Sannappa J. Natural radioactivity levels and associated radiation hazards in soil samples of Chikkamagaluru district, Karnataka, India. J Radioanal Nucl Chem 2022. [DOI: 10.1007/s10967-021-08133-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Anand U, Li X, Sunita K, Lokhandwala S, Gautam P, Suresh S, Sarma H, Vellingiri B, Dey A, Bontempi E, Jiang G. SARS-CoV-2 and other pathogens in municipal wastewater, landfill leachate, and solid waste: A review about virus surveillance, infectivity, and inactivation. Environ Res 2022; 203:111839. [PMID: 34358502 PMCID: PMC8332740 DOI: 10.1016/j.envres.2021.111839] [Citation(s) in RCA: 54] [Impact Index Per Article: 27.0] [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: 06/27/2021] [Revised: 07/15/2021] [Accepted: 08/02/2021] [Indexed: 05/18/2023]
Abstract
This review discusses the techniques available for detecting and inactivating of pathogens in municipal wastewater, landfill leachate, and solid waste. In view of the current COVID-19 pandemic, SARS-CoV-2 is being given special attention, with a thorough examination of all possible transmission pathways linked to the selected waste matrices. Despite the lack of works focused on landfill leachate, a systematic review method, based on cluster analysis, allows to analyze the available papers devoted to sewage sludge and wastewater, allowing to focalize the work on technologies able to detect and treat pathogens. In this work, great attention is also devoted to infectivity and transmission mechanisms of SARS-CoV-2. Moreover, the literature analysis shows that sewage sludge and landfill leachate seem to have a remote chance to act as a virus transmission route (pollution-to-human transmission) due to improper collection and treatment of municipal wastewater and solid waste. However due to the incertitude about virus infectivity, these possibilities cannot be excluded and need further investigation. As a conclusion, this paper shows that additional research is required not only on the coronavirus-specific disinfection, but also the regular surveillance or monitoring of viral loads in sewage sludge, wastewater, and landfill leachate. The disinfection strategies need to be optimized in terms of dosage and potential adverse impacts like antimicrobial resistance, among many other factors. Finally, the presence of SARS-CoV-2 and other pathogenic microorganisms in sewage sludge, wastewater, and landfill leachate can hamper the possibility to ensure safe water and public health in economically marginalized countries and hinder the realization of the United Nations' sustainable development goals (SDGs).
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Affiliation(s)
- Uttpal Anand
- Department of Life Sciences and the National Institute for Biotechnology in the Negev, Ben-Gurion University of the Negev, Beer-Sheva, 84105, Israel
| | - Xuan Li
- School of Civil, Mining and Environmental Engineering, University of Wollongong, Australia
| | - Kumari Sunita
- Department of Botany, Deen Dayal Upadhyay Gorakhpur University, Gorakhpur, Uttar Pradesh, 273009, India
| | - Snehal Lokhandwala
- Department of Environmental Science & Technology, Shroff S.R. Rotary Institute of Chemical Technology, UPL University of Sustainable Technology, Ankleshwar, Gujarat, 393135, India
| | - Pratibha Gautam
- Department of Environmental Science & Technology, Shroff S.R. Rotary Institute of Chemical Technology, UPL University of Sustainable Technology, Ankleshwar, Gujarat, 393135, India
| | - S Suresh
- Department of Chemical Engineering, Maulana Azad National Institute of Technology, Bhopal, 462 003, Madhya Pradesh, India
| | - Hemen Sarma
- Department of Botany, Nanda Nath Saikia College, Dhodar Ali, Titabar, 785630, Assam, India
| | - Balachandar Vellingiri
- Human Molecular Cytogenetics and Stem Cell Laboratory, Department of Human Genetics and Molecular Biology, Bharathiar University, Coimbatore, 641-046, India
| | - Abhijit Dey
- Department of Life Sciences, Presidency University, 86/1 College Street, Kolkata, 700073, West Bengal, India
| | - Elza Bontempi
- INSTM and Chemistry for Technologies Laboratory, Department of Mechanical and Industrial Engineering, University of Brescia, Via Branze, 38, 25123, Brescia, Italy.
| | - Guangming Jiang
- School of Civil, Mining and Environmental Engineering, University of Wollongong, Australia; Illawarra Health and Medical Research Institute (IHMRI), University of Wollongong, Wollongong, Australia.
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Anand U, Adelodun B, Cabreros C, Kumar P, Suresh S, Dey A, Ballesteros F, Bontempi E. Occurrence, transformation, bioaccumulation, risk and analysis of pharmaceutical and personal care products from wastewater: a review. Environ Chem Lett 2022; 20:3883-3904. [PMID: 35996725 PMCID: PMC9385088 DOI: 10.1007/s10311-022-01498-7] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Accepted: 07/22/2022] [Indexed: 05/02/2023]
Abstract
UNLABELLED Almost all aspects of society from food security to disease control and prevention have benefited from pharmaceutical and personal care products, yet these products are a major source of contamination that ends up in wastewater and ecosystems. This issue has been sharply accentuated during the coronavirus disease pandemic 2019 (COVID-19) due to the higher use of disinfectants and other products. Here we review pharmaceutical and personal care products with focus on their occurrence in the environment, detection, risk, and removal. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s10311-022-01498-7.
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Affiliation(s)
- Uttpal Anand
- Ben-Gurion University of the Negev, 84105 Beer-Sheva, Israel
- Zuckerberg Institute for Water Research, Jacob Blaustein Institutes for Desert Research, Ben Gurion University of the Negev, Midreshet Ben Gurion, 8499000, Israel
| | - Bashir Adelodun
- Department of Agricultural and Biosystems Engineering, University of Ilorin, PMB 1515, Ilorin, Nigeria
- Department of Agricultural Civil Engineering, Kyungpook National University, Daegu, Republic of Korea
| | - Carlo Cabreros
- Environmental Engineering Program, National Graduate School of Engineering, University of the Philippines, 1101 Diliman, Quezon City, Philippines
| | - Pankaj Kumar
- Agro-Ecology and Pollution Research Laboratory, Department of Zoology and Environmental Science, Gurukula Kangri (Deemed to Be University), Haridwar, Uttarakhand 249404 India
| | - S. Suresh
- Department of Chemical Engineering, Maulana Azad National Institute of Technology, Bhopal, Madhya Pradesh 462 003 India
| | - Abhijit Dey
- Department of Life Sciences, Presidency University, 86/1 College Street, Kolkata, West Bengal 700073 India
| | - Florencio Ballesteros
- Environmental Engineering Program, National Graduate School of Engineering, University of the Philippines, 1101 Diliman, Quezon City, Philippines
| | - Elza Bontempi
- INSTM and Chemistry for Technologies Laboratory, University of Brescia, Via Branze 38, 25123 Brescia, Italy
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Dhanjayan R, Suresh S, Srinivasan S, Sahaya Jude Dhas S. Growth Aspects and Optical, Mechanical and Electrical Property Investigation on L-Histidinium-4-Nitrophenolate 4-Nitrophenol (LHPNP) Single Crystal. Polycycl Aromat Compd 2021. [DOI: 10.1080/10406638.2021.2012211] [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: 10/19/2022]
Affiliation(s)
- R. Dhanjayan
- Department of Physics, R&D Centre, Bharathiar University, Coimbatore, India
- Department of Physics, Shree Chandraprabhu Jain College, Minjur, Tamil Nadu, India
| | - S. Suresh
- Department of Physics, Saveetha Engineering College (Autonomous), Thandalam, Chennai, Tamil Nadu, India
| | - S. Srinivasan
- Department of Physics, Presidency College, Chennai, Tamil Nadu, India
| | - S. Sahaya Jude Dhas
- Department of Physics, Kings Engineering College, Sriperumbudur, Chennai, Tamilnadu, India
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Fontanella F, Groen H, Duin LK, Suresh S, Bilardo CM. Z-scores of fetal bladder size for antenatal differential diagnosis between posterior urethral valves and urethral atresia. Ultrasound Obstet Gynecol 2021; 58:875-881. [PMID: 33864313 PMCID: PMC9299997 DOI: 10.1002/uog.23647] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 03/21/2021] [Accepted: 03/26/2021] [Indexed: 06/12/2023]
Abstract
OBJECTIVE To construct reference values for fetal urinary bladder distension in pregnancy and use Z-scores as a diagnostic tool to differentiate posterior urethral valves (PUV) from urethral atresia (UA). METHODS This was a prospective cross-sectional study in healthy singleton pregnancies aimed at constructing nomograms of fetal urinary bladder diameter and volume between 15 and 35 weeks' gestation. Z-scores of longitudinal bladder diameter (LBD) were calculated and validated in a cohort of fetuses with megacystis with ascertained postnatal or postmortem diagnosis, collected from a retrospective, multicenter study. Correlations between anatomopathological findings, based on medical examination of the infant or postmortem examination, and fetal megacystis were established. The accuracy of the Z-scores was evaluated by receiver-operating-characteristics (ROC)-curve analysis. RESULTS Nomograms of fetal urinary bladder diameter and volume were produced from three-dimensional ultrasound volumes in 225 pregnant women between 15 and 35 weeks of gestation. A total of 1238 urinary bladder measurements were obtained. Z-scores, derived from the fetal nomograms, were calculated in 106 cases with suspected lower urinary tract obstruction (LUTO), including 76 (72%) cases with PUV, 22 (21%) cases with UA, four (4%) cases with urethral stenosis and four (4%) cases with megacystis-microcolon-intestinal hypoperistalsis syndrome. Fetuses with PUV showed a significantly lower LBD Z-score compared to those with UA (3.95 vs 8.83, P < 0.01). On ROC-curve analysis, we identified 5.2 as the optimal Z-score cut-off to differentiate fetuses with PUV from the rest of the study population (area under the curve, 0.84 (95% CI, 0.748-0.936); P < 0.01; sensitivity, 74%; specificity, 86%). CONCLUSIONS Z-scores of LBD can distinguish reliably fetuses with LUTO caused by PUV from those with other subtypes of LUTO, with an optimal cut-off of 5.2. This information should be useful for prenatal counseling and management of LUTO. © 2021 The Authors. Ultrasound in Obstetrics & Gynecology published by John Wiley & Sons Ltd on behalf of International Society of Ultrasound in Obstetrics and Gynecology.
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Affiliation(s)
- F. Fontanella
- Department of Obstetrics and GynaecologyIsala HospitalZwolleThe Netherlands
| | - H. Groen
- Department of Epidemiology‐HPC FA40, University of GroningenUniversity Medical Center GroningenGroningenThe Netherlands
| | - L. K. Duin
- Department of Obstetrics and GynaecologyIsala HospitalZwolleThe Netherlands
| | - S. Suresh
- Mediscan Ultrasound CenterChennaiIndia
| | - C. M. Bilardo
- Department of Obstetrics and Prenatal DiagnosisUniversity Medical Center Groningen, University of GroningenGroningenThe Netherlands
- Amsterdam UMC, Location VUAmsterdamThe Netherlands
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Abstract
In the past decades, most materials used in the food packaging industry are nonbiodegradable materials that pose increased environmental concerns and sustainability
issues. Hence, polymer-based biodegradable materials and edible films have been
developed to increase the shelf life of food products. Especially, biopolymer-based nanomaterials are engineered with multifunctional characteristics because of their size, surface
area, shelf life, thermal stability, and mechanical and barrier strength. These materials
display enriched properties of biodegradability, antimicrobial activity, and
biocompatibility and may have the possibility to replace plastic materials in future. Thus,
this review offers a brief overview of the classification of biopolymers, key parameters
that are important in food packaging films (including the role of plasticizers, cross-linkers,
pH, temperature, and relative humidity), and recent applications of novel biopolymer
nanocomposite materials used in the food industries.
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Ramaswami A, Sahu AK, Kumar A, Suresh S, Nair A, Gupta D, Chouhan R, Bhat R, Mathew R, Majeed JA, Aggarwal P, Nayer J, Ekka M, Thakar A, Singh G, Xess I, Wig N. COVID-19-associated mucormycosis presenting to the Emergency Department-an observational study of 70 patients. QJM 2021; 114:464-470. [PMID: 34254132 PMCID: PMC8420631 DOI: 10.1093/qjmed/hcab190] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Mucormycosis (MM) is a deadly opportunistic fungal infection and a large surge in COVID-19-associated mucormycosis (CAM) is occurring in India. AIM Our aim was to delineate the clinico-epidemiological profile and identify risk factors of CAM patients presenting to the Emergency Department (ED). DESIGN This was a retrospective, single-centre, observational study. METHODS We included patients who presented with clinical features or diagnosed MM and who were previously treated for COVID-19 in last 3 months of presentation (recent COVID-19) or currently being treated for COVID-19 (active COVID-19). Information regarding clinical features of CAM, possible risk factors, examination findings, diagnostic workup including imaging and treatment details were collected. RESULTS Seventy CAM patients (median age: 44.5 years, 60% males) with active (75.7%) or recent COVID-19 (24.3%) who presented to the ED in between 6 May 2021 and 1 June 2021, were included. A median duration of 20 days (interquartile range: 13.5-25) was present between the onset of COVID-19 symptoms and the onset of CAM symptoms. Ninety-three percent patients had at least one risk factor. Most common risk factors were diabetes mellitus (70%) and steroid use for COVID-19 disease (70%). After clinical, microbiological and radiological workup, final diagnosis of rhino-orbital CAM was made in most patients (68.6%). Systemic antifungals were started in the ED and urgent surgical debridement was planned. CONCLUSION COVID-19 infection along with its medical management have increased patient susceptibility to MM.
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Affiliation(s)
- A Ramaswami
- Department of Emergency Medicine, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India
| | - A K Sahu
- Department of Emergency Medicine, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India
| | - A Kumar
- Department of Emergency Medicine, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India
| | - S Suresh
- Department of Emergency Medicine, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India
| | - A Nair
- Department of Emergency Medicine, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India
| | - D Gupta
- Department of Emergency Medicine, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India
| | - R Chouhan
- Department of Emergency Medicine, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India
| | - R Bhat
- Department of Emergency Medicine, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India
| | - R Mathew
- Department of Emergency Medicine, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India
| | - J A Majeed
- Department of Emergency Medicine, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India
| | - P Aggarwal
- Department of Emergency Medicine, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India
| | - J Nayer
- Department of Emergency Medicine, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India
| | - M Ekka
- Department of Emergency Medicine, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India
| | - A Thakar
- Department of Otorhinolaryngology, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India
| | - G Singh
- Department of Microbiology, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India
| | - I Xess
- Department of Microbiology, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India
| | - N Wig
- Department of Medicine, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India
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Arumugam J, Thambidurai S, Suresh S, Selvapandiyan M, Kandasamy M, Pugazhenthiran N, Karthick Kumar S, Muneeswaran T, Quero F. Green synthesis of zinc oxide nanoparticles using Ficus carica leaf extract and their bactericidal and photocatalytic performance evaluation. Chem Phys Lett 2021. [DOI: 10.1016/j.cplett.2021.139040] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Suresh S, Rangaswamy DR, Sannappa J, Srinivasa E. Gamma Dose Rate and Annual Effective Dose Equivalent in Uttara Kannada District, Karnataka, India. Radiochemistry 2021. [DOI: 10.1134/s1066362221050179] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Suresh S, Kaneta G, Wignakumar A, Choksy S, Sinha S, Howard A. 1181 Thoracic Outlet Syndrome - A Miss(Ed) Diagnosis-Delayed Diagnosis Of Thoracic Outlet Syndrome Is Common And Leads To Poorer Functional Outcomes. Br J Surg 2021. [DOI: 10.1093/bjs/znab259.131] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Abstract
Thoracic outlet syndrome was first defined by Peet in 1956 as “compression of the neurovascular structures in the interscalene triangle corresponding to the possible etiology of the symptoms”.1 Diagnosis of TOCS still remains controversial due to lack of clear referral pathways and our study aims to create one to prevent adverse treatment outcomes.
Method
A retrospective audit in a single vascular centre over a 11-year period correlating time of onset of symptoms to delivery of care and post intervention benefits
Results
Total of 50 patients were analysed during the study. 30 percent of the patients analysed were noted to be referred to a vascular surgeon 3 years post the initial presentation of symptoms. 60 percent were noted to be referred between 6-2.5 years post initial presentation. Remaining 10 percent were noted to be referred in less than 6 years. It was noted that patients belonging to the group Acohort were noted to have recurrence of symptoms, albeit minor post intervention and treatment of TOCS. Whereas recurrence was noted to be nil/ reduced in the patients intervened in less than 2 years from onset of symptoms. Furthermore, the study also noted that more than 50 percent patients with neurogenic/ venous TOCS had a history of preceeding trauma/ shoulder injury and were noted to be not investigated for TOCS.
Conclusions
Our study lends evidence that delayed diagnosis of thoracic outlet syndrome is common and leads to poorer functional and treatment outcomes. Hence a diagnostic pathway must be proposed and implemented at primary care which caters to diagnosis of TOCS, to avoid delays in delivery of adequate care and treatment.
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Affiliation(s)
- S Suresh
- Colchester General Hospital, Colchester, United Kingdom
| | - G Kaneta
- Colchester General Hospital, Colchester, United Kingdom
| | - A Wignakumar
- Colchester General Hospital, Colchester, United Kingdom
| | - S Choksy
- Colchester General Hospital, Colchester, United Kingdom
| | - S Sinha
- Colchester General Hospital, Colchester, United Kingdom
| | - A Howard
- Colchester General Hospital, Colchester, United Kingdom
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Nisha P, Suresh S, Saravanan P, Jayamoorthy K, Subash B, Prakash SM, Rajagopalan NR, Ravichandran C. Effect on hydrophobicity and antimicrobial behavior of epoxy resin due to silane functionalized TiO2 as nanofillers. International Journal of Polymer Analysis and Characterization 2021. [DOI: 10.1080/1023666x.2021.1964743] [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] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- P. Nisha
- Department of Electrical and Electronics Engineering, Easwari Engineering College, Chennai, India
| | - S. Suresh
- Department of Physics, St. Joseph's College of Engineering, Chennai, India
| | - P. Saravanan
- Department of Chemistry, St. Joseph's College of Engineering, Chennai, India
| | - K. Jayamoorthy
- Department of Chemistry, St. Joseph's College of Engineering, Chennai, India
| | - B. Subash
- Department of Chemistry, St. Joseph's College of Engineering, Chennai, India
| | - S. M. Prakash
- Department of Chemistry, St. Joseph's College of Engineering, Chennai, India
| | - N. R. Rajagopalan
- Department of Chemistry, St. Joseph's College of Engineering, Chennai, India
| | - C. Ravichandran
- Department of Chemistry, Anna University, Chennai, India
- Department of Chemistry, Easwari Engineering College, Chennai, India
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Anand U, Bianco F, Suresh S, Tripathi V, Núñez-Delgado A, Race M. SARS-CoV-2 and other viruses in soil: An environmental outlook. Environ Res 2021; 198:111297. [PMID: 33971130 PMCID: PMC8102436 DOI: 10.1016/j.envres.2021.111297] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [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: 03/31/2021] [Revised: 04/30/2021] [Accepted: 05/01/2021] [Indexed: 05/15/2023]
Abstract
In the present review, the authors shed light on the SARS-CoV-2 impact, persistence, and monitoring in the soil environment. With this purpose, several aspects have been deepened: i) viruses in soil ecosystems; ii) direct and indirect impact on the soil before and after the pandemic, and iii) methods for quantification of viruses and SARS-CoV-2 monitoring in soil. Viruses are present in soil (i.e. up to 417 × 107 viruses per g TS-1 in wetlands) and can affect the behavior and ecology of other life forms (e.g. bacteria), which are remarkably important for maintaining environmental equilibrium. Also, SARS-CoV-2 can be found in soil (i.e. up to 550 copies·g-1). Considering that the SARS-CoV-2 is very recent, poor knowledge is available in the literature on persistence in the soil and reference has been made to coronaviruses and other families of viruses. For instance, the survival of enveloped viruses (e.g. SARS-CoV) can reach 90 days in soils with 10% of moisture content at ambient. In such a context, the possible spread of the SARS-CoV-2 in the soil was evaluated by analyzing the possible contamination routes.
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Affiliation(s)
- Uttpal Anand
- Department of Life Sciences, National Institute for Biotechnology in the Negev, Ben-Gurion University of the Negev, Beer-Sheva, 84105, Israel
| | - Francesco Bianco
- Department of Civil and Mechanical Engineering, University of Cassino and Southern Lazio, Via Di Biasio 43, 03043, Cassino, Italy
| | - S Suresh
- Department of Chemical Engineering, Maulana Azad National Institute of Technology, Bhopal, 462 003, Madhya Pradesh, India
| | - Vijay Tripathi
- Department of Molecular and Cellular Engineering, Jacob Institute of Biotechnology and Bioengineering, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj, 211007, India
| | - Avelino Núñez-Delgado
- Department Soil Science and Agricultural Chemistry, Engineering Polytechnic School, Campus Univ. Lugo, Univ. Santiago de Compostela, 27002, Spain
| | - Marco Race
- Department of Civil and Mechanical Engineering, University of Cassino and Southern Lazio, Via Di Biasio 43, 03043, Cassino, Italy.
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Anand U, Adelodun B, Pivato A, Suresh S, Indari O, Jakhmola S, Jha HC, Jha PK, Tripathi V, Di Maria F. A review of the presence of SARS-CoV-2 RNA in wastewater and airborne particulates and its use for virus spreading surveillance. Environ Res 2021; 196:110929. [PMID: 33640498 PMCID: PMC7906514 DOI: 10.1016/j.envres.2021.110929] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [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: 12/09/2020] [Revised: 02/20/2021] [Accepted: 02/22/2021] [Indexed: 05/08/2023]
Abstract
According to the WHO, on October 16, 2020, the spreading of the SARS-CoV-2, responsible for the COVID-19 pandemic, reached 235 countries and territories, and resulting in more than 39 million confirmed cases and 1.09 million deaths globally. Monitoring of the virus outbreak is one of the main activities pursued to limiting the number of infected people and decreasing the number of deaths that have caused high pressure on the health care, social, and economic systems of different countries. Wastewater based epidemiology (WBE), already adopted for the surveillance of life style and health conditions of communities, shows interesting features for the monitoring of the COVID-19 diffusion. Together with wastewater, the analysis of airborne particles has been recently suggested as another useful tool for detecting the presence of SARS-CoV-2 in given areas. The present review reports the status of research currently performed concerning the monitoring of SARS-CoV-2 spreading by WBE and airborne particles. The former have been more investigated, whereas the latter is still at a very early stage, with a limited number of very recent studies. Nevertheless, the main results highlights in both cases necessitate more research activity for better understating and defining the biomarkers and the related sampling and analysis procedures to be used for this important aim.
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Affiliation(s)
- Uttpal Anand
- Department of Life Sciences, National Institute for Biotechnology in the Negev, Ben-Gurion University of the Negev, Beer-Sheva, 84105, Israel
| | - Bashir Adelodun
- Department of Agricultural and Biosystems Engineering, University of Ilorin, PMB 1515, Ilorin, Nigeria; Department of Agricultural Civil Engineering, Kyungpook National University, Daegu, Republic of Korea
| | - Alberto Pivato
- DICEA - Department of Civil, Environmental and Architectural Engineering, University of Padova, Via Marzolo 9, 35131, Padova, Italy
| | - S Suresh
- Department of Chemical Engineering, Maulana Azad National Institute of Technology, Bhopal, 462 003, Madhya Pradesh, India
| | - Omkar Indari
- Discipline of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore, 453552, Indore, Madhya Pradesh, India
| | - Shweta Jakhmola
- Discipline of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore, 453552, Indore, Madhya Pradesh, India
| | - Hem Chandra Jha
- Discipline of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore, 453552, Indore, Madhya Pradesh, India
| | - Pawan Kumar Jha
- Centre for Environmental Studies, University of Allahabad, Prayagraj, 211002, Uttar Pradesh, India
| | - Vijay Tripathi
- Department of Molecular and Cellular Engineering, Jacob Institute of Biotechnology and Bioengineering, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj, 211007, Uttar Pradesh, India.
| | - Francesco Di Maria
- LAR(5) Laboratory - Dipartimento di Ingegneria - University of Perugia, via G. Duranti 93, 06125, Perugia, Italy.
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Philip Raja S, Jayamoorthy K, Dhanalekshmi KI, Suresh S. Mn 3O 4 nanoparticles bearing 5-amino-2-mercapto benzimidazole moiety as antibacterial and antifungal agents. J Biomol Struct Dyn 2021; 40:7084-7090. [PMID: 33715599 DOI: 10.1080/07391102.2021.1894237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
The antibacterial and antifungal effects of non-functionalized and surface-functionalized Mn3O4 nanoparticles were comparatively analyzed to reason out the potential changes in antimicrobial activities due to functionalization with 5-amino-2-mercapto benzimidazole (AMB) molecule. The surface functionalization of Mn3O4 nanoparticles with AMB molecule was confirmed by the XRD result, which shows the shift in 2θ values with noticeable peaks. The surface morphology and functionalization of Mn3O4 nanoparticles were additionally confirmed by HR-SEM and EDAX studies. Antimicrobial activities were investigated by an agar-well-diffusion method using the bacteria Staphylococcus aureus and Pseudomonas aeruginosa and fungi Aspergillus niger. The functionalized Mn3O4 nanoparticles possess remarkable antibacterial and antifungal effect than the non-functionalized Mn3O4 nanoparticles and AMB molecule. The coating of low energy surface layer over metal oxide nanoparticles such as Mn3O4 offers an active surface toward both transfer of electron and the adsorption or desorption of water, inorganic ions, and other molecules, which leads to the increased antimicrobial activity of f-Mn3O4 nanoparticles.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- S Philip Raja
- Department of Physics, St. Joseph's Institute of Technology, Chennai, Tamil Nadu, India
| | - K Jayamoorthy
- Department of Chemistry, St. Joseph's College of Engineering, Chennai, Tamil Nadu, India
| | - K I Dhanalekshmi
- School of Mechanical Engineering, Beijing Institute of Technology, Beijing, China
| | - S Suresh
- Department of Physics, St. Joseph's College of Engineering, Chennai, Tamil Nadu, India
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