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SSRN 2022年

作者： Guimarães, Abraão Tiago Batista Freitas, Ítalo Nascimento Mubarak, Nabisab Mujawar Rahman, M.D. Mostafizur de Lima Rodrigues, Aline Sueli Barceló, Damià Malafaia, Guilherme Laboratory of Toxicology Applied to the Environment Goiano Federal Institute Urutaí GO Brazil Petroleum and Chemical Engineering Faculty of Engineering Universiti Teknologi Brunei Bandar Seri BegawanBE1410 Brunei Laboratory of Environmental Health and Ecotoxicology Department of Environmental Sciences Jahangirnagar University Dhaka1342 Bangladesh Post-Graduation Program in Conservation of Cerrado Natural Resources Goiano Federal Institute GO Urutaí Brazil H2O Building Scientific and Technological Park of the University of Girona Emili Grahit 101 Girona17003 Spain JordiGirona 1826 Barcelona08034 Spain Post-Graduation Program in Ecology Conservation and Biodiversity Federal University of Uberlândia MG Uberlândia Brazil Post-Graduation Program in Biotechnology and Biodiversity Federal University of Goiás GO Goiânia Brazil

Thus, we aimed to evaluate whether exposure to polystyrene (PS) NPs at 6.5 ng/kg and 6500 ng/kg) alters the behavior of male Swiss mice. After 20-days of exposure, our data showed no effects of pollutants on the locomotor activity of the animals. However, we noticed an anxiolytic-like behavior and alterations in the antipredatory defensive response of mice exposed to PS NPs, when confronted with their predator potential (snake, Pantherophis guttatus ). Furthermore, such changes were associated with suppressing brain antioxidant activity, inferred by lower DPPH radical scavenging activity and reduced glutathione content. Also, we noticed that the treatments induced DNA damage, evaluated via a single-cell gel electrophoresis assay applied to circulating erythrocytes of the animals. However, we did not observe a dose-response effect for all biomarkers evaluated and the estimated accumulation of PS NPs in the brain. The values of the integrated biomarker response index and the results of the principal component analysis and the hierarchical clustering analysis confirmed the similarity between the responses of animals exposed to different doses of PS NPs. Therefore, our study sheds light on how PS NPs can impact mammals and reinforce the ecotoxicological risk associated with the dispersion of these pollutants in natural environments. © 2022, The Authors. All rights reserved.

关键词： Mammals

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Evaluation of differences in polyethersulfone membrane modification techniques using bio-additive dragon blood resin

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AIP Conference Proceedings 2024年第1期3082卷

作者： Aulia Chintia Ambarita Sri Mulyati Nasrul Arahman Muhammad Roil Bilad Doctoral Program School of Engineering Post Graduate Program Universitas Syiah Kuala Banda Aceh 23111 Indonesia Department of Chemical Engineering Faculty of Engineering Universitas Syiah Kuala Banda Aceh 23111 Indonesia Department of Chemical and Process Engineering Faculty of Integrated Technologies Universiti Brunei Darussalam Jalan Tungku Link Gadong BE1401 Brunei

Membrane surface modification is one of the simplest ways to enhance the anti-fouling attribute of a polyethersulfone (PES)-based membrane. This paper compared two modification methods of PES membranes using dragon blood resin (DBR) additive via blending in the dope solution and coating a pristine PES membrane. The effect of modification methods was evaluated based on the properties and performances of the resulting membranes. Results show that the DBR-blended membrane exhibits higher water permease but lesser humic acid rejection than the DBR-coated membrane. Characteristics of contact angle, porosity, and pore size showed linear results on permease performance. The FTIR spectrum did not reveal any new groups but differed only on peak intensity. The DBR-coated membrane showed excellent anti-fouling properties as demonstrated by a flux recovery percentage of > 350%.

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Analysis of post-tanning chemicals and Reduction of Pollution Load in Wastewater 36

Analysis of Post-tanning Chemicals and Reduction of Pollutio...

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36th International Union of Leather Technologists and Chemists Societies Congress 2021, IULTCS 2021

作者： Hansen, Éverton de Aquim, Patrice Monteiro Gutterres, Mariliz Federal University of Rio Grande do Sul - UFRGS Post-Graduation Program of Chemical Engineering Laboratory for Leather and Environmental Studies -LACOURO Eng. Luiz Englert street RS Porto Alegre Brazil Feevale University Institute of Pure Sciences and Technology 2755 RS 239 Novo Hamburgo RS Brazil Centro Universitário Ritter dos Reis - UniRitter 555 Orfanotrófio RS Porto Alegre Brazil Universidade do Vale do Rio dos Sinos Chemical Engineering Department 950 Av. Unisinos RS São Leopoldo Brazil

The chemicals in post-tanning are partially retained by the leather, and the fractions remaining in the process are discharged with the wastewater. Current literature has an extensive number of studies characterizing tannery effluents. However, few studies have evaluated how groups of chemicals applied to the leather impact the quality of wastewater generated in the process. Thus, this study aims to evaluate and reduce the impact of chemicals used in the post-tanning process on the main quality parameters of the wastewater. The assessment and reduction of the pollution load of leather chemicals were carried out using a formulation from a Brazilian tannery as a case study. Results showed that retanning agents (natural and synthetic tannins) were responsible for high inorganic pollution load in the wastewater, and the synthetic tannins were more toxic than the natural ones. The fatliquoring agents were responsible for the highest chemical oxygen demand load in the wastewater and were the chemical group that presented the highest cytotoxicity. The fixing agent and the dye contributed to the inorganic pollution load of the wastewater, and the nitrogen load of the wastewater was mainly related to the neutralizing retanner and the dye. The adjustment of the chemicals supply showed depletion in the pollution load of wastewater. The obtained leather showed quality within the required specifications of the tannery, and the formulation cost was reduced by 24%. © 2021 XXXVI International Union of Leather Technologists and Chemists Societies Congress 2021, IULTCS 2021. All rights reserved.

关键词： Leather

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Cellulose Microcrystalline: A Promising Ecofriendly Approach to Control Culex Quinquefasciatus Larvae

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SSRN 2023年

作者： de Souza, Sindoval Silva Gomes, Alex Rodrigues Batista Guimarães, Abraão Tiago Rodrigues, Aline Sueli de Lima de Matos, Letícia Paiva Mendonça, Juliana dos Santos Luz, Thiarlen Marinho da da Silva Matos, Stênio Gonçalves Safiur, M. Rahman Ragavendran, Chinnasamy Senthil-Nathan, Sengottayan Guru, Ajay Rakib, Md. Refat Jahan Mubarak, Nabisab Mujawar Mostafizur, Md. Rahman Rocha, Thiago Lopes Towfiqul Islam, Abu Reza Md. Malafaia, Guilherme Post-Graduation Program in Biotechnology and Biodiversity Federal University of Goiás GO Goiânia Brazil Laboratory of Toxicology Applied to the Environment Goiano Federal Institute Urutaí Campus. Rodovia Geraldo Silva Nascimento 25 km Zona Rural Urutaí GO Brazil Post-Graduation Program in Ecology Conservation and Biodiversity Federal University of Uberlândia MG Uberlândia Brazil Post-Graduation Program in Conservation of Cerrado Natural Resources Goiano Federal Institute Urutaí GO Brazil Department of Environmental Science and Disaster Management Noakhali Science and Technology University Noakhali3814 Bangladesh Saveetha University Tamil Nadu Chennai India Division of Biopesticides and Environmental Toxicology Sri Paramakalyani Centre for Excellence in Environmental Sciences Manonmaniam Sundaranar University Tirunelveli Tamil Nadu Alwarkurichi627 412 India Department of Cariology Saveetha Dental College and Hospitals SIMATS Tamil Nadu Chennai600 077 India Noakhali Science and Technology University Noakhali Bangladesh Petroleum and Chemical Engineering Faculty of Engineering Universiti Teknologi Brunei Bandar Seri BegawanBE1410 Brunei Jahangirnagar University Dhaka1342 Bangladesh Laboratory of Environmental Biotechnology and Ecotoxicology Institute of Tropical Pathology and Public Health Federal University of Goiás Goiás Goiânia Brazil Department of Disaster Management Begum Rokeya University Rangpur5400 Bangladesh

The growing use of synthetic chemical compounds/substances in vector control of mosquitoes, associated with their adverse effects on the environment and non-target organisms, has demanded the development of eco-friendly alternatives. In this context, this study aimed to evaluate the larvicidal action of different cellulose microcrystalline (CMs) concentrations and investigate their toxicity mechanisms in Culex quinquefasciatus fourth instar larvae as a model species. Probit analysis revealed that the median lethal concentrations (LC50) for 24 h and 36 h exposure were 100 and 58.29 mg/L, respectively. We also showed that such concentrations induced a redox imbalance in the larvae, marked by an increase in the production of reactive oxygen species (ROS) and thiobarbituric acid reactive substances (TBARS), as well as a reduction in the activity of superoxide dismutase (SOD) and catalase (CAT). Furthermore, different alterations in the external morphology of the larvae were associated with the ingestion of CMs. On the other hand, exposure of adult zebrafish (Danio rerio) to LC5024h and LC5036h for seven days did not induce any behavioral changes or alterations mutagenic, genotoxic, biochemical, or in the pro- and anti-inflammatory response. Thus, taken together, our study demonstrates for the first time that the use of CMs can constitute a promising strategy in the control of C. quinquefasciatus larvae, combining insecticidal efficiency with an "eco-friendly" approach in the fight against an important mosquito vector of several human diseases. © 2023, The Authors. All rights reserved.

关键词： Cellulose

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Carbon Nanofibers in Predicted Environmentally Relevant Concentrations Intensify Monocystis Sp. Infection and Affect the Lumbricus Terrestris Earthworms' Health

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SSRN 2023年

作者： Montalvão, Mateus Flores Gomes, Alex Rodrigues Guimarães, Abraão Tiago Batista Rodrigues, Aline Sueli de Lima de Matos, Letícia Paiva Mendonça, Juliana dos Santos da Luz, Thiarlen Marinho da Silva Matos, Stênio Gonçalves Rahman, M. Safiur Ragavendran, Chinnasamy Senthil-Nathan, Sengottayan Guru, Ajay Rakib, Md. Refat Jahan Mubarak, Nabisab Mujawar Rahman, Md. Mostafizur Rocha, Thiago Lopes Islam, Abu Reza Md. Towfiqul Malafaia, Guilherme Post-Graduation Program in Ecology Conservation and Biodiversity Federal University of Uberlândia MG Uberlândia Brazil Laboratory of Toxicology Applied to the Environment Goiano Federal Institute Urutaí Campus. Rodovia Geraldo Silva Nascimento 25 km Zona Rural GO Urutaí Brazil Post-Graduation Program in Conservation of Cerrado Natural Resources Goiano Federal Institute GO Urutaí Brazil Post-Graduation Program in Biotechnology and Biodiversity Federal University of Goiás GO Goiânia Brazil Bangladesh Atomic Energy CommissionBangladesh Bangladesh Periyar University India Division of Biopesticides and Environmental Toxicology Sri Paramakalyani Centre for Excellence in Environmental Sciences Manonmaniam Sundaranar University Tirunelveli Tamil Nadu Alwarkurichi627 412 India Department of Cariology Saveetha Dental College and Hospitals SIMATS Tamil Nadu Chennai600 077 India Noakhali Science and Technology University Noakhali Bangladesh Petroleum and Chemical Engineering Faculty of Engineering Universiti Teknologi Brunei Bandar Seri BegawanBE1410 Brunei Jahangirnagar University Dhaka1342 Bangladesh Laboratory of Environmental Biotechnology and Ecotoxicology Institute of Tropical Pathology and Public Health Federal University of Goiás Goiás Goiania Brazil Department of Disaster Management Begum Rokeya University Rangpur5400 Bangladesh

We aimed at the ecotoxicity of CNFs (at 10 and 100 mg/kg) in Lumbricus terrestris earthworms naturally infected with Monocystis sp. After 28-d of exposure, treatments did not affect the survival rate. However, we observed a significant loss of body biomass, and Monocystis sp. infection in seminal vesicles was potentiated by exposure to CNFs. Earthworms exposed to CNFs showed a redox imbalance in the seminal vesicle, muscle, and intestine and an alteration in nitric oxide production in these organs. In muscles, we also noticed a significant reduction in AChE activity in earthworms exposed to CNFs. The histopathological analyses revealed the treatments' significant effect on the structures of the different evaluated tissues. When taken together and after applying IBRv2 and PCA, we noticed that the response of earthworms to CNFs at 100 mg/kg showed a more significant deviation from the unexposed group. Thus, we demonstrate that CNFs increase the parasite load of Monocystis sp. of adult L. terrestris earthworms and induce biochemical changes and histopathological changes, especially at 100 mg/kg. Our results point to the additional impact these nanomaterials can have on the health of earthworms, signaling the need for greater attention to their disposal and ecotoxicological effects on soil organisms. © 2023, The Authors. All rights reserved.

关键词： Muscle

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Carbon Nanofibers in Predicted Environmentally Relevant Concentrations Intensify Monocystis Sp. Infection and Affect the Lumbricus Terrestris Earthworms' Health

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SSRN 2023年

作者： Montalvão, Mateus Flores Gomes, Alex Rodrigues Guimarães, Abraão Tiago Batista de Lima Rodrigues, Aline Sueli de Matos, Letícia Paiva dos Santos Mendonça, Juliana da Luz, Thiarlen Marinho da Silva Matos, Stênio Gonçalves Rahman, M. Safiur Ragavendran, Chinnasamy Senthil-Nathan, Sengottayan Guru, Ajay Rakib, Md. Refat Jahan Mubarak, Nabisab Mujawar Rahman, Md. Mostafizur Rocha, Thiago Lopes Towfiqul Islam, Abu Reza Md. Malafaia, Guilherme Post-Graduation Program in Ecology Conservation and Biodiversity Federal University of Uberlândia MG Uberlândia Brazil Laboratory of Toxicology Applied to the Environment Goiano Federal Institute Urutaí Campus. Rodovia Geraldo Silva Nascimento 25 Km Zona Rural GO Urutaí Brazil Post-Graduation Program in Conservation of Cerrado Natural Resources Goiano Federal Institute GO Urutaí Brazil Post-Graduation Program in Biotechnology and Biodiversity Federal University of Goiás GO Goiânia Brazil Bangladesh Atomic Energy Commission Bangladesh Periyar University India Division of Biopesticides and Environmental Toxicology Sri Paramakalyani Centre for Excellence in Environmental Sciences Manonmaniam Sundaranar University Alwarkurichi Tamil Nadu Tirunelveli627 412 India Department of Cariology Saveetha Dental College and Hospitals SIMATS Tamil Nadu Chennai600 077 India Noakhali Science and Technology University Noakhali Bangladesh Petroleum and Chemical Engineering Faculty of Engineering Universiti Teknologi Brunei Bandar Seri Begawan BE1410 Brunei Jahangirnagar University Dhaka1342 Bangladesh Laboratory of Environmental Biotechnology and Ecotoxicology Institute of Tropical Pathology and Public Health Federal University of Goiás Goiás Goiania Brazil Department of Disaster Management Begum Rokeya University Rangpur5400 Bangladesh

Although the ecotoxicity of carbon-based nanomaterials (CBNs) is known, the potential effect of carbon nanofibers (CNFs) on edaphic organisms has not been evaluated. Thus, we aimed at the ecotoxicity of CNFs (at 10 and 100 mg/kg) in Lumbricus terrestris earthworms naturally infected with Monocystis sp. After 28 days of exposure, treatments did not affect the survival rate. However, we observed a significant loss of body biomass, and Monocystis sp. infection in seminal vesicles was potentiated by exposure to CNFs. Earthworms exposed to CNFs showed a redox imbalance in the seminal vesicle, muscle, and intestine and an alteration in nitric oxide production in these organs. In muscles, we also noticed a significant reduction in AChE activity in earthworms exposed to CNFs. The histopathological analyses revealed the treatments' significant effect on the structures of the different evaluated tissues. Although we did not notice a concentration-response for several of the biomarkers, when taken together and after the application of IBRv2 and principal component analysis (PCA), we noticed that the response of earthworms to CNFs at 100 mg/kg showed a more significant deviation from the unexposed group. This was mainly determined by inhibiting antioxidant activity in the seminal vesicle, biochemical biomarkers assessed in muscle and intestine, and histomorphometric muscle biomarkers from earthworms exposed to CNFs at 100 mg/kg. Thus, we demonstrate that CNFs increase the parasite load of Monocystis sp. of adult L. terrestris earthworms and induce biochemical changes and histopathological changes, especially at 100 mg/kg. Our results point to the additional impact these nanomaterials can have on the health of earthworms, signaling the need for greater attention to their disposal and ecotoxicological effects on soil organisms. © 2023, The Authors. All rights reserved.

关键词： Biomarkers

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Retraction notice to "Short-term exposure of the mayfly larvae (Cloeon dipterum, Ephemeroptera: Baetidae) to SARS-COV-2-derived peptides and other emerging pollutants: A new threat for the aquatic environments" [Sci. Total Environ. 849 (2022) 157813]

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The Science of the total environment 2024年 957卷 177658页

作者： Ítalo Nascimento Freitas Amanda Vieira Dourado Stênio Gonçalves da Silva Matos Sindoval Silva de Souza Thiarlen Marinho da Luz Aline Sueli de Lima Rodrigues Abraão Tiago Batista Guimarães Nabisab Mujawar Mubarak Md Mostafizur Rahman Andrés Hugo Arias Guilherme Malafaia 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. Laboratory of Toxicology Applied to the Environment Goiano Federal Institute Urutaí GO Brazil. Post-Graduation Program in Biotechnology and Biodiversity Federal University of Goiás Goiânia GO Brazil. Petroleum and Chemical Engineering Faculty of Engineering Universiti Teknologi Brunei Bandar Seri Begawan BE1410 Brunei Darussalam. 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 Bahía Blanca Argentina. Post-Graduation Program in Conservation of Cerrado Natural Resources Goiano Federal Institute Urutaí GO Brazil Petroleum and Chemical Engineering Faculty of Engineering Universiti Teknologi Brunei Bandar Seri Begawan BE1410 Brunei Darussalam Post-Graduation Program in Ecology Conservation and Biodiversity Federal University of Uberlândia Uberlândia MG Brazil.

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Characterization and performances of hydrophobic polymer membrane modified with dragon’s blood resin

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AIP Conference Proceedings 2023年第1期2613卷

作者： Aulia Chintia Ambarita Sri Mulyati Nasrul Arahman Muhammad Roil Bilad 1Doctoral School of Engineering Science School of Engineering Post Graduate Program Universitas Syiah Kuala Banda Aceh 23111 Indonesia 2Department of Chemical Engineering Faculty of Engineering Universitas Syiah Kuala Banda Aceh 23111 Indonesia 3Department of Chemical and Process Engineering Faculty of Integrated Technologies Universiti Brunei Darussalam Jalan Tungku Link-Gadong BE1401 Brunei

Hydrophobic membranes have limitations, which are the low permeation rate and susceptible to fouling, therefore membrane modifications are generally required. In this paper, hydrophobic polymer membrane modification has been studied by mixing dragon's blood resin (DBR) as bio additive. Two types of polymers were used, they were polyethersulfon (M-3 PES) and polyvinylidene Two types of polymers were used, they were polyethersulfon (M-3 PES) and polyvinylidene fluoride (M-3 PVDF) with a concentration of 14.5% polymer and 3% DBR. The results showed that M-3 PES had greater porosity, water uptake, pore size, and clean water flux than M3-PVDF. However, the antifouling performance of M-3 PVDF membrane tends to be better than M-3 PES, as well as its rejection. Both membranes tend to be stable even after repeated use.

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Prediction of Fluctuations in a Chaotic Cancer Model Using Machine Learning

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SSRN 2022年

作者： Sayari, Elaheh da Silva, Sidney Tiago Iarosz, Kelly C. Viana, Ricardo L. Szezech, José Danilo Batista, Antonio Marcos Post-Graduation in Science State University of Ponta Grossa PR Ponta Grossa Brazil Federal University of Paraná PR Curitiba Brazil Faculdade de Telêmaco Borba FATEB Telêmaco Borba Paraná Brazil Graduate Program in Chemical Engineering Federal Technological University of Paraná PR Ponta Grossa Brazil Department of Physics Federal University of Paraná PR Curitiba Brazil Institute of Physics University of São Paulo SP São Paulo Brazil Mathematics and Statistics Department State University of Ponta Grossa PR Ponta Grossa Brazil

Cancer is a group of diseases and the second leading cause of death according to World Health Organization. Mathematical and computational methods have been used to explore the cancer cells spread and the mechanism of their growth. We study a cancer model that exhibits both periodic and chaotic attractors. It describes the interactions among host, effector immune, and cancer cells. It is observed fluctuations in the population of cells. The fluctuation range can be associated with the appearance of tumour cells. In this work, we use machine learning algorithms for the prediction of fluctuations. We show that our machine learning classification is able to identify fluctuations that are associated with the growth rate of cancer cells. © 2022, The Authors. All rights reserved.

关键词： Cancer cells

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Retraction notice to "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" [Sci. Total Environ. 858 Part 2 (2023) 159838]

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The Science of the total environment 2024年 957卷 177710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

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