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Catharanthus roseus-mediated CuAl2O4 nanocomposites for evaluation of killing kinetics

Chemosphere 2024年 359卷 142369页

作者： Potbhare, Ajay K. Yerpude, Sachin Daddemal-Chaudhary, Ankita R. Lambat, Ashish Mondal, Aniruddha Dadure, Kanhaiya M. Rai, Alok R. Abdala, Ahmed Chaudhary, Ratiram G. Department of Chemistry S. K. Porwal College of Arts and Science and Commerce Kamptee441001 India Department of Microbiology S. K. Porwal College of Arts and Science and Commerce Kamptee441001 India Lady Amritabai Daga College for Women of Arts Commerce and Science Nagpur440010 India Post Graduate Teaching Department of Botany RTM Nagpur University Nagpur440033 India Department of Biology Sevadal Mahila Mahavidyalaya Nagpur India Division of Materials Science Lulea University of Technology Lulea97187 Sweden Department of Chemistry Bajaj College of Science Wardha India Chemical Engineering Program Texas A&M University at Qatar Doha Qatar

The present article portrayed on the killing kinetic of human pathogenic bacteria using bioinspired mesoporous CuAl2O4 nanocomposites (NCs). The NCs was fabricated using leaf extract of medicinal plant Catharanthus roseus (CR) as a green reducer and stabilizer. As bio-fabricated material was calcined at 800 °C and characterized by several analytical techniques like X-ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FT-IR), Ultraviolet–Visible Diffuse Reflectance Spectroscopy (UV-DRS), Energy Dispersive X-Ray Spectroscopy (EDS), X-Ray Photoelectron Spectroscopy (XPS), Raman, Brunauer-Emmett-Teller (BET), Scanning Electron Microscopy (SEM), and Transmission Electron Microscopy (TEM) to authenticate its structure, phase, chemical bonding, chemical state, size and morphology behaviors. XRD and TEM revealed a reduced crystallite and nanoscale sizes of biosynthesized NCs. Moreover, XRD study exposed a cubic-structure of material, while transmission electron microscopy rendered an average particles size in range 10–15 nm. However, BET profile advocates a mesoporous nature of the particles. An effective biological molecular docking modulation assessed by substituting natural inhibitor by bioinspired NCs, while the protein PDB ID 4Z8D FabH as a receptor site for the present investigation. After assessment of molecular docking examination, the antibacterial activity of bioinspired NCs were performed against Staphylococcus aureus, Bacillus subtillis, Klebsiella pneumoniae and Escherichia coli using agar-well method. The broth culture method was employed on different pathogenic strains by kinetic growth assays and colony forming unit. © 2024 Elsevier Ltd

关键词： Nanocomposites

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Ibuprophen Removal from Synthetic Effluents Using Electrocoagulation-Peroxidation (ECP)

Research Square

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Research Square 2021年

作者： Behling, Laura da Luz, Vilson Conrado Pasquali, Gean Delise Leal Bazoti, Suzana Fátima Rosa, Clarissa Dalla Pereira, Paulo Post-Graduation Program in Science and Environmental Technology Federal University of Fronteira Sul ERS 135 -Km 72 No 200 PO Box 764 Erechim – RS 99700-970 Brazil Environmental and Sanitary Engineering Department Federal University of Fronteira Sul ERS 135 -Km 72 No 200 PO Box 764 Erechim – RS 99700-970 Brazil

Concerning water resources, several ordinances and legislation determine standards and conditions for the discharge of effluents into water bodies. However, several contaminants are not covered by these guidelines because they are found in low concentrations and due to little knowledge of their long-term effects. These contaminants are called emergents, and this category includes drugs, such as anti-inflammatory drugs. The electrocoagulation process associated with advanced oxidation comes up as an alternative to conventional effluent treatment processes, and the objective of this work was to evaluate this process using scrap iron as sacrificial electrodes in the treatment of synthetic effluents containing Ibuprofen. High performance liquid chromatography (HPLC) was used to quantify the drug in synthetic effluents. The CCRD 24 was used in an experimental design, having as independent variables evaluated the concentration of contaminants, applied current, the concentration of the primary oxidizing agent H2O2 and the reaction time. The optimized conditions determined by statistical analysis were drug concentration of 5 mg.L-1, H2O2 concentration of 200 mg.L-1, current of 5 A and 150 min. The removals obtained under these conditions were higher than 92% in the aqueous phase, showing that ECP technique has the potential to treat contaminants such as drugs present in effluents and waters. © 2021, CC BY.

关键词： High performance liquid chromatography

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Retraction notice to "Synthesize palladium nanoparticles from the macroalgae Sargassum fusiforme: An eco-friendly tool in the fight against plasmodium falciparum?" [Sci. Total Environ. 857 Part 3, (2022) 159517]

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The Science of the total environment 2024年 957卷 177660页

作者： Chinnaperumal Kamaraj Chinnasamy Ragavendran R C Satish Kumar Sarvesh Sabarathinam Cittrarasu Vetrivel Mariyappan Vaithiyalingam Guilherme Malafaia Interdisciplinary Institute of Indian System of Medicine (IIISM) Drug Testing Laboratory Directorate of Research SRM Institute Science and Technology Kattankulathur 603 203 Tamil Nadu India. Department of Cariology Saveetha Dental College and Hospitals Chennai Tamil Nadu India. Carbon Capture Lab Department of Chemical Engineering SSN College of Engineering Kalavakkam Chennai 603110 Tamil Nadu India Department of Anatomy Saveetha Dental college and Hospital Saveetha institute of medical and Technical science Chennai Tamil N 600 007 India. Department of Chemistry SRM Institute of Science and Technology Kattankulathur Chengalpattu 603203 Tamilnadu India. Laboratory of Toxicology Applied to the Environment Goiano Federal Institute Urutaí GO Brazil Post-Graduation Program in Conservation of Cerrado Natural Resources Goiano Federal Institute Urutaí GO Brazil Post-Graduation Program in Ecology Conservation and Biodiversity Federal University of Uberlândia Uberlândia MG Brazil Post-Graduation Program in Biotechnology and Biodiversity Federal University of Goiás Goiânia GO Brazil.

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Toxicity assessment of SARS-CoV-2-derived peptides in combination with a mix of pollutants on zebrafish adults: A perspective study of behavioral, biometric, mutagenic, and biochemical toxicity

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The Science of the total environment 2023年第PT 2期858卷 159838页

作者： Ítalo Nascimento Freitas Amanda Vieira Dourado Amanda Pereira da Costa Araújo Sindoval Silva de Souza Thiarlen Marinho da Luz Abraão Tiago Batista Guimarães Alex Rodrigues Gomes Abu Reza Md Towfiqul Islam Md Mostafizur Rahman Andrés Hugo Arias Davoodbasha Mubarak Ali Chinnasamy Ragavendran Chinnaperumal Kamaraj Guilherme Malafaia Laboratory of Toxicology Applied to the Environment Goiano Federal Institute Urutaí GO Brazil Post-Graduation Program in Ecology Conservation and Biodiversity Federal University of Uberlândia Uberlândia MG Brazil. Laboratory of Toxicology Applied to the Environment Goiano Federal Institute Urutaí GO Brazil. Post-Graduation Program in Environmental Sciences Federal University of Goiás Goiânia GO Brazil. Post-Graduation Program in Biotechnology and Biodiversity Federal University of Goiás Goiânia GO Brazil. Post-Graduation Program in Conservation of Cerrado Natural Resources Goiano Federal Institute Urutaí GO Brazil. Begum Rokeya University Department of Disaster Management Rangpur 5404 Bangladesh. Laboratory of Environmental Health and Ecotoxicology Department of Environmental Sciences Jahangirnagar University Dhaka 1342 Bangladesh. Instituto Argentino de Oceanografía (IADO) Universidad Nacional del Sur (UNS)-CONICET Florida 8000 Complejo CCT CONICET Bahía Blanca Edificio E1 B8000BFW Bahía Blanca Argentina. Petroleum and Chemical Engineering Faculty of Engineering Universiti Teknologi Brunei Bandar Seri Begawan BE1410 Brunei Darussalam. Department of Conservative Dentistry and Endodontics Saveetha Dental College and Hospitals Saveetha Institute of Medical and Technical Sciences (SIMATS) Chennai India. Interdisciplinary Institute of Indian System of Medicine (IIISM) Directorate of Research and Virtual Education SRM Institute of Science and Technology (SRMIST) Kattankulathur 603203 Tamil Nadu India. Post-Graduation Program in Ecology Conservation and Biodiversity Federal University of Uberlândia Uberlândia MG Brazil Post-Graduation Program in Biotechnology and Biodiversity Federal University of Goiás Goiânia GO Brazil Post-Graduation Program in Conservation of Cerrado Natural Resources Goiano Federal Institute Urutaí GO Brazil. Electronic address: guilhermeifgoiano@***.

The dispersion of SARS-CoV-2 in aquatic environments via the discharge of domestic and hospital sewage has been confirmed in different locations. Thus, we aimed to evaluate the possible impacts of zebrafish (Danio rerio) exposure to SARS-CoV-2 peptide fragments (PSPD-2001, 2002, and 2003) alone and combined with a mix of emerging pollutants. Our data did not reveal the induction of behavioral, biometric, or mutagenic changes. But we noticed an organ-dependent biochemical response. While nitric oxide and malondialdehyde production in the brain, gills, and muscle did not differ between groups, superoxide dismutase activity was reduced in the "PSPD", "Mix", and "Mix+PSPD" groups. An increase in catalase activity and a reduction in DPPH radical scavenging activity were observed in the brains of animals exposed to the treatments. However, the "Mix+PSPD" group had a higher IBRv2 value, with NO levels (brain), the reduction of acetylcholinesterase activity (muscles), and the DPPH radical scavenging activity (brain and muscles), the most discriminant factors for this group. The principal component analysis (PCA) and hierarchical clustering analysis indicated a clear separation of the "Mix+PSPD" group from the others. Thus, we conclude that exposure to viral fragments, associated with the mix of pollutants, induced more significant toxicity in zebrafish adults than in others.

关键词： Biomarkers COVID-19 Danio rerio Freshwater ecosystems Non-target organisms Novel coronavirus

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Fabrication and electroluminescent property of OLED with boron-complex 3

Fabrication and electroluminescent property of OLED with bor...

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3rd International Conference on Electron Device and Mechanical engineering, ICEDME 2020

作者： Lin, Yu-Feng Yeh, Anchi Chen, Sheng-Lee Fanny Lin, M.-F. ChungYuan Christiant University Department of Chemical and Materials Engineering Taoyuan Taiwan Chengshiu University Department of Cosmetic and Fashion Styling Kaohsiung Taiwan Hsing Wu University of Science and Technology Center of General Education Taoyuan Taiwan Long Island University at CW Post Master Program of Education New York United States

ISBN: (纸本)9781728181455

A novel luminescence boron compound, [2-(4, 5- diphenyl-1-imidazole-2-yl) pyridine] (DPIP-BPh2), has been synthesized by the reaction of pyridine-imidazole- based ligand. The decomposed temperature of DPIP-BPh2 is high than 200°C by thermogravimetric analyzer (TGA). For the three-layer organic light-emitting diodes (OLED) with the structure ITO/NPB/DPIP-BPh2/Alq3/Mg-Ag, an emission band centering at 490 nm with the maximum brightness of 1300 cd/m2 was observed, indicating a perfect blue OLED (CIE= 0.22, 0.36). DPIP-BPh2 forms a new family of organometallic emitting materials which which may bring benefits to people in practical applications. © 2020 IEEE.

关键词： Pyridine

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Retraction notice to "Eco-friendly bioremediation of pollutants from contaminated sewage wastewater using special reference bacterial strain of Bacillus cereus SDN1 and their genotoxicological assessment in Allium cepa" [Sci. Total Environ. 863 (2023) 160935]

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The Science of the total environment 2024年 957卷 177727页

作者： Ponniah Anusha Chinnasamy Ragavendran Chinnaperumal Kamaraj Kanagaraj Sangeetha Annadurai Sakthi Thesai Devarajan Natarajan Guilherme Malafaia Department of Science and Humanities Kongunadu College of Engineering and Technology Tholurpatti Trichy 621 215 Tamil Nadu India. Department of Conservative Dentistry and Endodontics Saveetha Dental College and Hospitals Saveetha Institute of Medical and Technical Sciences (SIMATS) Chennai 600 077 India. Interdisciplinary Institute of Indian System of Medicine (IIISM) SRM Institute of Science and Technology (SRMIST) Kattankulathur Chennai 603 203 Tamil Nadu India. Natural Drug Research Laboratory Department of Biotechnology School of Biosciences Periyar University Salem Tamil Nadu India. Department of Microbiology Sona College of Arts and Science Salem 636 005 India. Laboratory of Toxicology Applied to the Environment Goiano Federal Institute Urutaí GO Brazil Post-Graduation Program in Conservation of Cerrado Natural Resources Goiano Federal Institute Urutaí GO Brazil Post-Graduation Program in Ecology Conservation and Biodiversity Federal University of Uberlândia Uberlândia MG Brazil Post-Graduation Program in Biotechnology and Biodiversity Federal University of Goiás Goiânia GO Brazil.

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Experimental analysis of jet slurry erosion on martensitic stainless steel 9

Experimental analysis of jet slurry erosion on martensitic s...

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9th International Scientific Conference on Research and Development of Mechanical Elements and Systems, IRMES 2019

作者： Santacruz, G. Takimi, A.S. Vannucchide Camargo, F. Bergmann, C.P. Post-Graduation Program in Mining Metallurgical and Materials Engineering Federal University of Rio Grande Do Sul-UFRGS Osvaldo Aranha 99 Porto AlegreRS 90035-190 Brazil Department of Industrial Engineering University of Bologna Viale del Risorgimento 2 Bologna40136 Italy

Due to their enhanced tribological properties that contribute to an increased useful life of components, martensitic stainless steels are an excellent option for industrial applications such as hydroelectric, petrochemical, civil construction and mineral processing plants. In the present investigation, the erosive wear of AISI 410 martensitic stainless steel is evaluated after thermal treatment by quenching and tempering by mass loss, under erosive attack at 30° and 90° incidence angles, using a self-made jet slurry erosion equipment controlling parameters such as speed, volume of fluid, temperature and concentration of erosive particles of erodent. The characterization of the eroded samples was carried out in terms of the microstructure (SEM) and microhardness as well as the particle size distribution (LG) and morphology of the erodent. It was possible to establish the relationship between the slurry erosive wear and the physical properties inherent of stainless steel for this particular experimental configuration, concluding that the steel presents better resistance to jet slurry erosion wear when compared to austenitic steel commonly used in the industry. © Published under licence by IOP Publishing Ltd.

关键词： Erosion

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Retraction notice to "Organic composts as A vehicle for the entry of microplastics into the environment: A comprehensive review" [Sci. Total Environ. 892 (2023) 164758]

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The Science of the total environment 2024年 957卷 177731页

作者： Van-Re Le Minh-Ky Nguyen Hoang-Lam Nguyen Chitsan Lin Md Refat Jahan Rakib Van-Anh Thai Van-Giang Le Guilherme Malafaia Abubakr M Idris Ho Chi Minh City University of Food Industry (HUFI) 140 Le Trong Tan Street Tan Phu District Ho Chi Minh City 700000 Viet Nam. Faculty of Environment and Natural Resources Nong Lam University of Ho Chi Minh City Hamlet 6 Linh Trung Ward Thu Duc City Ho Chi Minh City 700000 Viet Nam Ph.D. Program in Maritime Science and Technology National Kaohsiung University of Science and Technology Kaohsiung 81157 Taiwan. Department of Civil Engineering McGill University Montreal Canada. Ph.D. Program in Maritime Science and Technology National Kaohsiung University of Science and Technology Kaohsiung 81157 Taiwan Department of Marine Environmental Engineering National Kaohsiung University of Science and Technology Kaohsiung 81157 Taiwan. Department of Fisheries and Marine Science Faculty of Science Noakhali Science and Technology University Noakhali 3814 Bangladesh. Institute of Aquatic Science and Technology National Kaohsiung University of Science and Technology Kaohsiung City 81157 Taiwan. Central Institute for Natural Resources and Environmental Studies Vietnam National University Hanoi 111000 Viet Nam. Post-Graduation Program in Ecology Conservation and Biodiversity Federal University of Uberlândia Uberlândia MG Brazil Post-Graduation Program in Biotechnology and Biodiversity Federal University of Goiás Goiânia GO Brazil Post-Graduation Program in Conservation of Cerrado Natural Resources Goiano Federal Institute Urutaí GO Brazil. Department of Chemistry College of Science King Khalid University 61431 Abha Saudi Arabia Research Center for Advanced Materials Science (RCAMS) King Khalid University Abha 61421 Saudi Arabia.

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Retraction notice to "Personal protective equipment-derived pollution during Covid-19 era: A critical review of ecotoxicology impacts, intervention strategies, and future challenges" [Sci. Total Environ. 887(2023) 164164]

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The Science of the total environment 2025年 967卷 178758页

作者： Mehedi Hasan Abu Reza Md Towfiqul Islam Most Mastura Munia Farjana Jion Md Naimur Rahman Susmita Datta Peu Arnob Das A B M Mainul Bari Md Saiful Islam Subodh Chandra Pal Aznarul Islam Tasrina Rabia Choudhury Md Refat Jahan Rakib Abubakr M Idris Guilherme Malafaia Department of Disaster Management Begum Rokeya University Rangpur 5400 Bangladesh. Department of Disaster Management Begum Rokeya University Rangpur 5400 Bangladesh Department of Development Studies Daffodil International University Dhaka 1216 Bangladesh. Department of Geography and Environmental Science Begum Rokeya University Rangpur 5400 Bangladesh. Department of Agriculture Hajee Mohammad Danesh Science and Technology University Dinajpur 5200 Bangladesh. Department of Mechanical Engineering Rajshahi University of Engineering & Technology 6 Rajshahi 6204 Bangladesh. Department of Industrial and Production Engineering Bangladesh University of Engineering and Technology Dhaka 1000 Bangladesh. Department of Soil Science Patuakhali Science and Technology University Dumki Patuakhali 8602 Bangladesh. Department of Geography The University of Burdwan Bardhaman 713104 West Bengal India. Department of Geography Aliah University 17 Gorachand Road Kolkata 700 014 West Bengal India. Analytical Chemistry Laboratory Chemistry Division Atomic Energy Centre Dhaka (AECD) Bangladesh Atomic Energy Commission Dhaka 1000 Bangladesh. Department of Fisheries and Marine Science Faculty of Science Noakhali Science and Technology University Noakhali Bangladesh. Department of Chemistry College of Science King Khalid University Abha 62529 Saudi Arabia Research Center for Advanced Materials Science (RCAMS) King Khalid University Abha Saudi Arabia. Post-Graduation Program in Conservation of Cerrado Natural Resources Goiano Federal Institute Urutaí GO Brazil Post-Graduation Program in Ecology Conservation and Biodiversity Federal University of Uberlândia Uberlândia MG Brazil Post-Graduation Program in Biotechnology and Biodiversity Federal University of Goiás Goiânia GO Brazil.

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Investigation of thermal parameters in numerical modeling of the laser powder bed fusion process for maraging 300 steel

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materials Science and engineering: B 2025年 321卷

作者： Bruno Caetano dos Santos Silva Lucas de Figueiredo Soares Luã Fonseca Seixas J.P. Oliveira Jiajia Shen Rodrigo Santiago Coelho Gilmar Ferreira Batalha SENAI CIMATEC SENAI Innovation Institute for Forming and Joining of Materials Av. Orlando Gomes 1845 Piata 41650-010 Salvador-BA Brazil Department of Mechatronics and Mechanical Systems Engineering Polytechnic School of Engineering University of Sao Paulo Av. Prof. Mello Moraes 2231 Butantã Sao Paulo 05508-030 SP Brazil SENAI CIMATEC University Post-Graduation Program MPDS/GETEC/MCTI Av. Orlando Gomes 1845 Piata 41650-010 Salvador-BA Brazil CENIMAT | i3N Department of Materials Science School of Science and Technology NOVA University Lisbon Caparica Portugal

The development of numerical simulations for metal additive manufacturing (AM) processes to predict distortion and residual stress is considered a strategic tool for supporting the industrialization of AM. However, the complexity of these analyses, due to the intricacies of thermal cycles, demands substantial computational resources and a deep understanding of the key process variables to achieve accurate models. This study aims to evaluate the influence of thermal parameters on the results of thermomechanical simulations using the Inherent Strain Method (ISM). Specifically, the analysis investigates the effects of estimated peak temperatures on thermal analyses, distortion, equivalent stress, and microstructure volume fraction in maraging 300 steel (MS300) parts simulated via finite elements. The results indicate that varying the peak temperature of the models causes a linear change in the thermal simulation output, referred to as the exposed energy fraction (EEF) in the Simufact Additive software, which determines the thermal history of the process in fabricated geometry. However, the distortion behavior—by the mechanical analyses that used the EEF as input—deviated from this linearity across specific regions, emphasizing the need for localized accuracy assessment within complex geometries. Equivalent stress decreased with lower peak temperatures, highlighting a correlation between these factors, while the microstructure volume fraction remained unchanged across different peak temperatures. The simulation results were validated by comparing the simulated measurements with experimental data of the same geometry manufactured via laser powder bed fusion (LPBF). Displacement in the simulation was assessed by comparing the diameters of the front and back faces, as well as through surface deviation analysis, which highlighted variations between the scanned experimental geometry and the simulated part. Additionally, the microstructure of the experimental part was examine

关键词： Thermal cycling

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