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Rashad RT, Nasef HA, Gomaa EA, AbouElleef EM. Conductometric investigation of nano MnSO 4 association parameters and complex formation with glycylglycine in aqueous and methanol-water mixtures: Thermodynamic parameters and potential applications. Int J Biol Macromol 2024; 267:131648. [PMID: 38631565 DOI: 10.1016/j.ijbiomac.2024.131648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 04/13/2024] [Accepted: 04/14/2024] [Indexed: 04/19/2024]
Abstract
This study aimed to investigate the ion pair association values and association parameters of nano MnSO4 in water and methanol-water mixtures (20 % and 40 % methanol by mass percentage) at varying temperatures (298.15, 303.15, 308.15, and 313.15 K) using the conductometric technique. Additionally, the parameters for complex formation between nano MnSO4 and glycylglycine as a ligand were determined. The focus was on elucidating the thermodynamic formation parameters for the nano Mn2+-glycylglycine interaction, with particular emphasis on comparing the 1: 1 and 1: 2 (M: L) complexes to understand the complexation behavior more comprehensively. The results indicated that the complexation process was spontaneous, as evidenced by negative ΔGf (formation free energy change) values, which increased with temperature, highlighting the enhanced spontaneity of the process. The findings provide valuable insights into designing new materials and procedures by enhancing our understanding of the complexation behavior of nano MnSO4 with ligands like glycylglycine, thus contributing to advancements in various applications such as chemical synthesis, medicines, and environmental remediation. By elucidating the thermodynamic aspects of these interactions, the study aimed to provide valuable information that could be utilized in practical applications and further research endeavors.
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Affiliation(s)
- Radwa T Rashad
- Department of Basic Science, Misr Higher Institute for Engineering and Technology, Mansoura, Egypt.
| | - Hany A Nasef
- Basic Sciences Department, Delta Higher Institute for Engineering and Technology, 35681 Dakhlia, Mansoura, Egypt.
| | - Esam A Gomaa
- Chemistry Department, Faculty of Science, Mansoura University, 35516 Mansoura, Egypt.
| | - Elsayed M AbouElleef
- Basic Sciences Department, Delta Higher Institute for Engineering and Technology, 35681 Dakhlia, Mansoura, Egypt.
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2
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He M, Huang Y, Zhang X, Zhu W, Shao W, Wang J, Xu D, Yao W. Flexible cellulose nanofibers/MXene composite films for UV-shielding packaging. Int J Biol Macromol 2024; 264:130821. [PMID: 38484816 DOI: 10.1016/j.ijbiomac.2024.130821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 02/13/2024] [Accepted: 03/11/2024] [Indexed: 03/18/2024]
Abstract
Cellulose nanofibers (CNF) based films are promising packaging materials, but the lack of special functions (especially UV-shielding property) usually restrict their further applications. In this work, MXene was incorporated into the CNF film by a direct solvent volatilization induced film forming method to study its UV-shielding property for the first time, which avoided the using of a vacuum filtration equipment. The composite films containing glycerin could be folded repeatedly without breaking, showing good flexibility. The structure and properties of MXene/CNF composite films (CMF) were characterized systematically. The results showed that MXene distributed uniformly in the CNF film matrix and there was strong hydrogen bonding interaction between CNF and MXene. The tensile strength and Young's modulus of the composite films could reach 117.5 MPa and 2.23 GPa, which was 54.1 % and 59.2 % higher than those of pure CNF film, respectively. With the increase of MXene content, both the UVA and UVB shielding percentages increased significantly from 17.2 % and 25.5 % to 100.0 %, showing excellent UV-shielding property. Moreover, CMF exhibited a low oxygen permeability (OP) value of 0.39 cc μm d-1 m-2 kPa-1, a low water vapor permeability (WVP) value of 5.13 × 10-11 g-1s-1Pa-1 and a high antibacterial rate against E. coli (94.1 % at 24 h), showing potential application in the packaging field.
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Affiliation(s)
- Meng He
- Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province, School of Materials Science and Engineering, Yancheng Institute of Technology, Yancheng 224051, China.
| | - Yujia Huang
- Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province, School of Materials Science and Engineering, Yancheng Institute of Technology, Yancheng 224051, China
| | - Xinjiang Zhang
- Guangxi Colleges and Universities Key Laboratory of Environmental-friendly Materials and New Technology for Carbon Neutralization, Guangxi Key Laboratory of Advanced Structural Materials and Carbon Neutralization, School of Materials and Environment, Guangxi Minzu University, Nanning 530105, China
| | - Wenyu Zhu
- Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province, School of Materials Science and Engineering, Yancheng Institute of Technology, Yancheng 224051, China
| | - Wenjing Shao
- Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province, School of Materials Science and Engineering, Yancheng Institute of Technology, Yancheng 224051, China
| | - Jinhua Wang
- Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province, School of Materials Science and Engineering, Yancheng Institute of Technology, Yancheng 224051, China
| | - Dingfeng Xu
- School of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou 341000, China.
| | - Wei Yao
- Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province, School of Materials Science and Engineering, Yancheng Institute of Technology, Yancheng 224051, China
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Hui CY, Ma BC, Hu SY, Wu C. Tailored bacteria tackling with environmental mercury: Inspired by natural mercuric detoxification operons. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 341:123016. [PMID: 38008253 DOI: 10.1016/j.envpol.2023.123016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 10/30/2023] [Accepted: 11/19/2023] [Indexed: 11/28/2023]
Abstract
Mercury (Hg) and its inorganic and organic compounds significantly threaten the ecosystem and human health. However, the natural and anthropogenic Hg environmental inputs exceed 5000 metric tons annually. Hg is usually discharged in elemental or ionic forms, accumulating in surface water and sediments where Hg-methylating microbes-mediated biotransformation occurs. Microbial genetic factors such as the mer operon play a significant role in the complex Hg biogeochemical cycle. Previous reviews summarize the fate of environmental Hg, its biogeochemistry, and the mechanism of bacterial Hg resistance. This review mainly focuses on the mer operon and its components in detecting, absorbing, bioaccumulating, and detoxifying environmental Hg. Four components of the mer operon, including the MerR regulator, divergent mer promoter, and detoxification factors MerA and MerB, are rare bio-parts for assembling synthetic bacteria, which tackle pollutant Hg. Bacteria are designed to integrate synthetic biology, protein engineering, and metabolic engineering. In summary, this review highlights that designed bacteria based on the mer operon can potentially sense and bioremediate pollutant Hg in a green and low-cost manner.
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Affiliation(s)
- Chang-Ye Hui
- Shenzhen Prevention and Treatment Center for Occupational Diseases, 2019 Buxin Road, Shenzhen, 518020, China.
| | - Bing-Chan Ma
- Shenzhen Prevention and Treatment Center for Occupational Diseases, 2019 Buxin Road, Shenzhen, 518020, China; School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan, 430030, China
| | - Shun-Yu Hu
- Shenzhen Prevention and Treatment Center for Occupational Diseases, 2019 Buxin Road, Shenzhen, 518020, China; Department of Toxicology, School of Public Health, Southern Medical University, Guangzhou, 510515, China
| | - Can Wu
- Shenzhen Prevention and Treatment Center for Occupational Diseases, 2019 Buxin Road, Shenzhen, 518020, China; Department of Toxicology, School of Public Health, Southern Medical University, Guangzhou, 510515, China
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Nguyen HVM, Lee DH, Lee HS, Shin HS. Investigating the different transformations of tetracycline using birnessite under different reaction conditions and various humic acids. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 339:122763. [PMID: 37852315 DOI: 10.1016/j.envpol.2023.122763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 09/27/2023] [Accepted: 10/14/2023] [Indexed: 10/20/2023]
Abstract
Prior studies have successfully used manganese oxides to facilitate the transformation of tetracycline in aqueous solution. To further understand the kinetic and the transformation pathway of tetracycline via birnessite (δ-MnO2) under different conditions, experiments were conducted at pH levels of 3, 6, and 9 in the presence or absence of Aldrich humic acid (ADHA). Tetracycline removal followed the pseudo-second-order reaction model in all investigated cases, and the removal efficiency (g mg-1 h -1) followed the following trend: pH 3 (0.45/0.27) > pH 6 (0.036/0.087) > pH 9 (0.036/0.103) in the absence/presence of ADHA. Liquid chromatography-mass spectrometry/mass spectrometry results identified five main transformation products at m/z 495, 477, 493, 459, and 415, produced by the transformation reactions, including hydration, oxidation, desaturation, and oxy reduction. Notably, in the presence of ADHA at pH 3, products with higher toxicity secondary (m/z 477 and 495) were reduced, while less toxicity products (m/z 459 and 415) were enhanced. The experiments utilizing tetracycline and δ-MnO2 with varied humic acids (HA) revealed that HA with high polar organic carbon groups, such as O-alkyl, exhibited higher removal efficiency at pH 6. This research offers the first comprehensive insights into the pathway transformations of tetracycline via δ-MnO2 under different pH conditions and HA types. For further understanding, future work should investigate the binding of HA, TTC, and/or Mn2+ and the oxidation capacity of MnO2 after the reaction to clarify Mn2+ elution mechanisms.
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Affiliation(s)
- Hang Vo-Minh Nguyen
- Department of Environment Energy Engineering, Seoul National University of Science & Technology, 232 Gongneung-ro, Seoul, 01811, South Korea.
| | - Doo-Hee Lee
- Mass Spectrometer Laboratory, National Instrumentation Center for Environmental Management, 1 Gwanak-ro, Seoul, 08826, South Korea.
| | - Han-Saem Lee
- Department of Mechanical and Manufacturing Engineering, University of Calgary, Calgary, T2N 1N4, Canada.
| | - Hyun-Sang Shin
- Department of Environment Energy Engineering, Seoul National University of Science & Technology, 232 Gongneung-ro, Seoul, 01811, South Korea.
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Cao Y, Huang R, Li T, Pan D, Shao S, Wu X. Effect of antibiotics on the performance of moving bed biofilm reactor for simultaneous removal of nitrogen, phosphorus and copper(II) from aquaculture wastewater. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 266:115590. [PMID: 37839187 DOI: 10.1016/j.ecoenv.2023.115590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 09/24/2023] [Accepted: 10/11/2023] [Indexed: 10/17/2023]
Abstract
Co-existence of NO3--N, antibiotics, phosphorus (P), and Cu2+ in aquaculture wastewater has been frequently detected, but simultaneous removal and relationship between enzyme and pollutants removal are far from satisfactory. In this study, simultaneous removal of NO3--N, P, antibiotics, and Cu2+ by moving bed biofilm reactor (MBBR) was established. About 95.51 ± 3.40% of NO3--N, 61.24 ± 3.51% of COD, 18.74 ± 1.05% of TP, 88% of Cu2+ were removed synchronously in stage I, and antibiotics removal in stages I-IV was 73.00 ± 1.32%, 79.53 ± 0.88%, 51.07 ± 3.99%, and 33.59 ± 2.73% for tetracycline (TEC), oxytetracycline (OTC), chlortetracycline hydrochloride (CTC), sulfamethoxazole (SMX), respectively. The removal kinetics and toxicity of MBBR effluent were examined, indicating that the first order kinetic model could better reflect the removal of NO3--N, TN, and antibiotics. Co-existence of multiple antibiotics and Cu2+ was the most toxicity to E. coli growth. Key enzyme activity, reactive oxygen species (ROS) level, and its relationship with TN removal were investigated. The results showed that enzymes activities were significantly different under the co-existence of antibiotics and Cu2+. Meanwhile, different components of biofilm were extracted and separated, and enzymatic and non-enzymatic effects of biofilm were evaluated. The results showed that 70.00%- 94.73% of Cu2+ was removed by extracellular enzyme in stages I-V, and Cu2+ removal was mainly due to the action of extracellular enzyme. Additionally, microbial community of biofilm was assessed, showing that Proteobacteria, Bacteroidetes, and Gemmatimonadetes played an important role in the removal of NO3--N, Cu2+, and antibiotics at the phylum level. Finally, chemical bonds of attached and detached biofilm were characterized by X-ray photoelectron spectroscopy (XPS), and effect of nitrogen (N) and P was proposed under the co-existence of antibiotics and Cu2+. This study provides a theoretical basis for further exploring the bioremediation of NO3--N, Cu2+, and antibiotics in aquaculture wastewater.
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Affiliation(s)
- Ying Cao
- College of Resources and Environment, Anhui Agricultural University, Key Laboratory of Agri-food Safety of Anhui Province, Hefei 230036, PR China
| | - Ruiheng Huang
- College of Resources and Environment, Anhui Agricultural University, Key Laboratory of Agri-food Safety of Anhui Province, Hefei 230036, PR China
| | - Tenghao Li
- College of Resources and Environment, Anhui Agricultural University, Key Laboratory of Agri-food Safety of Anhui Province, Hefei 230036, PR China
| | - Dandan Pan
- College of Resources and Environment, Anhui Agricultural University, Key Laboratory of Agri-food Safety of Anhui Province, Hefei 230036, PR China
| | - Sicheng Shao
- College of Resources and Environment, Anhui Agricultural University, Key Laboratory of Agri-food Safety of Anhui Province, Hefei 230036, PR China
| | - Xiangwei Wu
- College of Resources and Environment, Anhui Agricultural University, Key Laboratory of Agri-food Safety of Anhui Province, Hefei 230036, PR China.
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Keshmiri-Naqab R, Taghavijeloudar M. Could organoclay be used as a promising natural adsorbent for efficient and cost-effective dye wastewater treatment? JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 342:118322. [PMID: 37311346 DOI: 10.1016/j.jenvman.2023.118322] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 05/04/2023] [Accepted: 06/03/2023] [Indexed: 06/15/2023]
Abstract
There is an urgent need for developing eco-friendly adsorbents for dye wastewater treatment with high efficiency and low cost. Meanwhile, organoclay has received an increasing attention as a natural adsorbent for dye removal. However, no comprehensive investigation has been conducted to evaluate the feasibility of this approach in terms of operation cost and removal efficiency. In this research, we intend to answer this question: could organoclay be used as an efficient and cost-effective approach for dye wastewater treatment? In line with that, after characterization of the Na-bentonite and modified clay by using SEM, EDX, FTIR and XRD, the performance of the organoclay was optimized in terms of AO7 dye removal efficiency and adsorption cost using response surface methods (RSM). Then, the organoclay performance was compared with other typical adsorbents activated carbon and chitosan. The characterization results proved that Na-bentonite was successfully modified by CTAB. According to RSM results, the maximum dye removal of 95% and the minimum adsorption cost of 0.009 $/g were achieved under optimum conditions of: pH: 5, AO7 concentration: 56 mg/L, contact time: 53 min and organoclay dosage: 0.8 g/L. While, in the case of other adsorbents of Na-bentonite, chitosan and activated carbon the maximum removal of 11%, 84% and 92% were achieved with 0.0136, 0.0324 and 0.1011 $/g, respectively. The adsorption kinetics and isotherms analyses revealed that the experimental data fitted well with the pseudo-second-order (R2 = 0.993) and Langmuir (R2 = 0.988). This study proved that organoclay can be used as a promising adsorbent for dye removal with low cost and high removal efficiency.
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Affiliation(s)
- Rasoul Keshmiri-Naqab
- Department of Environmental Engineering, Faculty of Civil Engineering, Babol Noshirvani University of Technology, 47148-7313, Babol, Iran.
| | - Mohsen Taghavijeloudar
- Department of Civil and Environmental Engineering, Seoul National University, 151-744, Seoul, South Korea.
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7
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Liang E, Huang T, Li J, Wang T. Degradation pathways of atrazine by electrochemical oxidation at different current densities: Identifications from compound-specific isotope analysis and DFT calculation. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023:121987. [PMID: 37301451 DOI: 10.1016/j.envpol.2023.121987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 05/16/2023] [Accepted: 06/07/2023] [Indexed: 06/12/2023]
Abstract
Current density was the key factor that impacted pollutant degradation by electrochemical oxidation, and reaction contributions at various current densities were non-negligible for the cost-effective treatments of organic pollutants. This research introduced compound specific isotope analysis (CSIA) into atrazine (ATZ) degradation by boron doped diamond (BDD) with current density of 2.5-20 mA/cm2, in order to provide "in-situ" and "fingerprint" analysis of reaction contributions with changed current densities. As results, the increased current density displayed a positive impact on ATZ removal. The ɅC/H values (correlations of Δδ13C and Δδ2H) were 24.58, 9.18 and 8.74 when current densities were 20, 4, and 2.5 mA/cm2, with ·OH contribution of 93.5%, 77.2% and 80.35%, respectively. While DET process favored lower current density with contribution rates up to ∼20%. What's more interesting, though the carbon and hydrogen isotope enrichment factors (εC and εH) were fluctuate, the ɅC/H linearly increased accompanied with applied current densities. Therefore, increasing current density was effective due to the larger ·OH contribution even though side reactions may occur. DFT calculations proved the increase of C-Cl bond length and the delocalization of Cl atom, confirming dechlorination reaction mainly occurred in the direct electron transfer process. While ·OH radical mainly attack the C-N bond on the side chain, which was more benefit to the fast decomposition of ATZ molecule and intermediates. It was forceful to discuss pollutant degradation mechanism by combining CSIA and DFT calculations. Target bond cleavage (i.e., dehalogenation reaction) can be conducted by changing reaction conditions like current density due to the significantly different isotope fractionation and bond cleavage.
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Affiliation(s)
- Enhang Liang
- College of Environmental Sciences and Engineering, Peking University, The Key Laboratory of Water and Sediment Sciences, Ministry of Education, Beijing, 100871, China
| | - Taobo Huang
- College of Environmental Sciences and Engineering, Peking University, The Key Laboratory of Water and Sediment Sciences, Ministry of Education, Beijing, 100871, China
| | - Jie Li
- College of Environmental Sciences and Engineering, Peking University, The Key Laboratory of Water and Sediment Sciences, Ministry of Education, Beijing, 100871, China
| | - Ting Wang
- College of Environmental Sciences and Engineering, Peking University, The Key Laboratory of Water and Sediment Sciences, Ministry of Education, Beijing, 100871, China.
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Kreutz GK, Borba FH, Baroni S, Mayer I, Seibert D, Inticher JJ, Zorzo CF, Guimarães RE. Reduction of the environmental impact of wastewater from the pretreatment of biodiesel production: A hybrid proposal for decontamination via photo-electro-Fenton/Fered/O 3. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 342:118080. [PMID: 37196625 DOI: 10.1016/j.jenvman.2023.118080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 04/27/2023] [Accepted: 04/30/2023] [Indexed: 05/19/2023]
Abstract
Complex wastewater is generated during biodiesel production. We propose a new solution for the treatment of wastewater from enzymatic pretreatment of biodiesel production (WEPBP) by using a hybrid system based on the photo-Fered-Fenton process with O3 assistance (PEF-Fered-O3). We applied response surface methodology (RSM) to determine the suitable conditions for the PEF-Fered-O3 process: a current intensity of 3 A, an initial solution pH controlled at 6.4, an initial H2O2 concentration of 12,000 mg L-1, and an O3 concentration of 50 mg L-1. We performed three new experiments under similar conditions with slight changes to the conditions, namely a longer reaction time (120 min) and single or periodic H2O2 addition (i.e., small H2O2 additions at different reaction times). Periodic H2O2 addition provided the best removal results probably by reducing the occurrence of undesired side reactions that cause hydroxyl radical (•OH) scavenging. With the application of the hybrid system, the chemical oxygen demand (COD) and total organic carbon (TOC) decreased by 91% and 75%, respectively. We also evaluated the presence of metals such as iron, copper, and calcium; electric conductivity; and voltage at 5, 10, 15, 30, 45, 60, 90, and 120 min. We submitted raw and treated WEPBP sludge samples to X-ray diffraction to study the degree of crystallinity. There was a rearrangement of the compounds present in treated WEPBP, possibly caused by oxidation of a large fraction of organic matter. Finally, we evaluated the genotoxicity and cytotoxicity of WEPBP by using Allium cepa meristematic root cells. Treated WEPBP was less toxic to these cells, denoted by improvements in gene regulation and cell morphology. Given the current scenario for the biodiesel industry, applying the proposed hybrid PEF-Fered-O3 system at suitable conditions provides an efficient alternative to treat a complex matrix, namely WEPBP, to reduce its potential to cause abnormalities in the cells of living organisms. Thus, the negative impacts of the discharge of WEPBP in the environment might be reduced.
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Affiliation(s)
- Gustavo K Kreutz
- Postgraduate Program of Environment and Sustainable Technologies, Federal University of Fronteira Sul, Rua Jacob Reinaldo Haupenthal 1580, CEP: 97900-00, Cerro Largo, RS, Brazil
| | - Fernando H Borba
- Postgraduate Program of Environment and Sustainable Technologies, Federal University of Fronteira Sul, Rua Jacob Reinaldo Haupenthal 1580, CEP: 97900-00, Cerro Largo, RS, Brazil.
| | - Suzymeire Baroni
- Postgraduate Program of Environment and Sustainable Technologies, Federal University of Fronteira Sul, Rua Jacob Reinaldo Haupenthal 1580, CEP: 97900-00, Cerro Largo, RS, Brazil
| | - Ildemar Mayer
- Postgraduate Program of Environment and Sustainable Technologies, Federal University of Fronteira Sul, Rua Jacob Reinaldo Haupenthal 1580, CEP: 97900-00, Cerro Largo, RS, Brazil
| | - Daiana Seibert
- Postgraduate Program of Environment and Sustainable Technologies, Federal University of Fronteira Sul, Rua Jacob Reinaldo Haupenthal 1580, CEP: 97900-00, Cerro Largo, RS, Brazil
| | - Jonas J Inticher
- Postgraduate Program of Chemical Engineering, West Paraná State University, Rua da Faculdade 645, Jd. Santa Maria, 85903-000, Toledo, PR, Brazil
| | - Camila F Zorzo
- Federal University of Rio Grande do Sul, Hydraulic Research Institute, Postal code 15029, Av. Bento Gonçalves, 9500, CEP 91501-970, Porto Alegre, RS, Brazil
| | - Raíssa E Guimarães
- Federal University of Rio Grande do Sul, Hydraulic Research Institute, Postal code 15029, Av. Bento Gonçalves, 9500, CEP 91501-970, Porto Alegre, RS, Brazil
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Niu L, Li C, Wang W, Zhang J, Scali M, Li W, Liu H, Tai F, Hu X, Wu X. Cadmium tolerance and hyperaccumulation in plants - A proteomic perspective of phytoremediation. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 256:114882. [PMID: 37037105 DOI: 10.1016/j.ecoenv.2023.114882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 02/27/2023] [Accepted: 04/04/2023] [Indexed: 06/19/2023]
Abstract
Cadmium (Cd) is a major environmental pollutant and poses a risk of transfer into the food chain through contaminated plants. Mechanisms underlying Cd tolerance and hyperaccumulation in plants are not fully understood. Proteomics-based approaches facilitate an in-depth understanding of plant responses to Cd stress at the systemic level by identifying Cd-inducible differentially abundant proteins (DAPs). In this review, we summarize studies related to proteomic changes associated with Cd-tolerance mechanisms in Cd-tolerant crops and Cd-hyperaccumulating plants, especially the similarities and differences across plant species. The enhanced DAPs identified through proteomic studies can be potential targets for developing Cd-hyperaccumulators to remediate Cd-contaminated environments and Cd-tolerant crops with low Cd content in the edible organs. This is of great significance for ensuring the food security of an exponentially growing global population. Finally, we discuss the methodological drawbacks in current proteomic studies and propose that better protocols and advanced techniques should be utilized to further strengthen the reliability and applicability of future Cd-stress-related studies in plants. This review provides insights into the improvement of phytoremediation efficiency and an in-depth study of the molecular mechanisms of Cd enrichment in plants.
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Affiliation(s)
- Liangjie Niu
- National Key Laboratory of Wheat and Maize Crop Science, College of Life Sciences, Henan Agricultural University, Zhengzhou, China
| | - Chunyang Li
- National Key Laboratory of Wheat and Maize Crop Science, College of Life Sciences, Henan Agricultural University, Zhengzhou, China
| | - Wei Wang
- National Key Laboratory of Wheat and Maize Crop Science, College of Life Sciences, Henan Agricultural University, Zhengzhou, China.
| | - Jinghua Zhang
- National Key Laboratory of Wheat and Maize Crop Science, College of Life Sciences, Henan Agricultural University, Zhengzhou, China
| | - Monica Scali
- Department of Life Sciences, University of Siena, Siena, Italy
| | - Weiqiang Li
- Jilin Da'an Agro-ecosystem National Observation Research Station, Key Laboratory of Mollisols Agroecology, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China
| | - Hui Liu
- National Key Laboratory of Wheat and Maize Crop Science, College of Life Sciences, Henan Agricultural University, Zhengzhou, China
| | - Fuju Tai
- National Key Laboratory of Wheat and Maize Crop Science, College of Life Sciences, Henan Agricultural University, Zhengzhou, China
| | - Xiuli Hu
- National Key Laboratory of Wheat and Maize Crop Science, College of Life Sciences, Henan Agricultural University, Zhengzhou, China
| | - Xiaolin Wu
- National Key Laboratory of Wheat and Maize Crop Science, College of Life Sciences, Henan Agricultural University, Zhengzhou, China
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Sanad MMS, Gaber SE, El-Aswar EI, Farahat MM. Graphene-magnetite functionalized diatomite for efficient removal of organochlorine pesticides from aquatic environment. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 330:117145. [PMID: 36586365 DOI: 10.1016/j.jenvman.2022.117145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 12/21/2022] [Accepted: 12/22/2022] [Indexed: 06/17/2023]
Abstract
A unique composite based on graphene oxide, magnetite, and diatomite was synthetized by eco-friendly dry coating technique for the removal of four toxic organochlorine pesticides from agricultural drainage. The prepared composite was fully characterized using X-ray fluorescence (XRF), X-ray diffraction (XRD), particle size analyzer, Vibrating-sample magnetometer (VSM), magnetic susceptibility meter, zeta potential, scanning electron microscopy-energy dispersive X-ray spectrometer (SEM-EDS), and Brunauer-Emmett-Teller analysis (BET) techniques. The characterization results confirmed the fabrication of a discrete core/shell structured composite possess both adsorptive and magnetic nature. The surface area, pore volume and pore diameter were 23.4 m2/g, 0.0026 cm3/g, and 4.5 nm, respectively. The amenability to use the fabricated composite as an adsorbent for some organochlorine pesticides was investigated under different conditions of concentration, time, pH, and temperature. Batch adsorption experiment showed that 97% removal efficiency was observed for all the studied pesticides with adsorption capacities of 7.78 mg/g after 2 h contact time and at any pH region. The adsorption was exothermic (ΔH < 0), spontaneous (ΔG° < 0), followed pseudo 2nd order kinetics (R2 > 0.998), and fitted well to Langmuir's isotherm pattern for all pesticides (R2 > 0.98). It is assumed that organochlorine pesticides were initially physisorbed by the graphene nanoplatelets via hydrophobic and π-π interactions along with chemisorption for forming monolayer. Moreover, the pesticides molecules could diffuse in the DMG composite micropores and be trapped in the structural defects. The regeneration of the composite exhibited over 90% removal efficiency even after seven cycles. The fabricated composite was examined to remove organochlorine from a real water sample, the obtained results suggest the possibility to use this composite as an economical, effective and sustainable adsorbent for the treatment of pesticides contaminating water.
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Affiliation(s)
- Moustafa M S Sanad
- Central Metallurgical Research and Development Institute, (CMRDI) P.O. Box 87, Helwan, Cairo, Egypt
| | - Seleem E Gaber
- Central Laboratories for Environmental Quality Monitoring (CLEQM), National Water Research Center (NWRC), El-Kanater, 13621, Qalyubiyah, Egypt.
| | - Eslam Ibrahim El-Aswar
- Central Laboratories for Environmental Quality Monitoring (CLEQM), National Water Research Center (NWRC), El-Kanater, 13621, Qalyubiyah, Egypt
| | - Mohsen M Farahat
- Central Metallurgical Research and Development Institute, (CMRDI) P.O. Box 87, Helwan, Cairo, Egypt
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Development of a Pass-through SPE Cartridge for the Rapid Determination of Fipronil and Its Metabolites in Chicken Eggs by LC-MS/MS. FOOD ANAL METHOD 2021. [DOI: 10.1007/s12161-020-01902-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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12
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Basturk I, Murat-Hocaoglu S, Varank G, Yazici-Guvenc S. Comparison of Ozonation and Electro-Fenton Processes for Sodium Azide Removal in Medical Laboratory Wastewater by Using Central Composite Design. SEP SCI TECHNOL 2020. [DOI: 10.1080/01496395.2020.1861017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Irfan Basturk
- The Scientific and Technological Research Council of Turkey, Marmara Research Center, Environment and Cleaner Production Institute, Kocaeli, Turkey
| | - Selda Murat-Hocaoglu
- The Scientific and Technological Research Council of Turkey, Marmara Research Center, Environment and Cleaner Production Institute, Kocaeli, Turkey
| | - Gamze Varank
- Department of Environmental Engineering, Yıldız Technical University, Davutpaşa Campus, Esenler, Istanbul, Turkey
| | - Senem Yazici-Guvenc
- Department of Environmental Engineering, Yıldız Technical University, Davutpaşa Campus, Esenler, Istanbul, Turkey
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Wang T, Xu Z, Huang Y, Dai Z, Wang X, Lee M, Bagtzoglou C, Brückner C, Lei Y, Li B. Real-time in situ auto-correction of K + interference for continuous and long-term NH 4+ monitoring in wastewater using solid-state ion selective membrane (S-ISM) sensor assembly. ENVIRONMENTAL RESEARCH 2020; 189:109891. [PMID: 32979997 DOI: 10.1016/j.envres.2020.109891] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 06/25/2020] [Accepted: 06/29/2020] [Indexed: 06/11/2023]
Abstract
Potassium ions (K+) present in wastewater has caused severe interference for NH4+ monitoring, over-estimation of NH4+ concentration and ultimately leads to extra energy consumption. Past effort for enhancing the selectivity of NH4+ over K+ were oftentimes complex, costly, or compromised the selectivity and accuracy of the NH4+ ion selective membrane (ISM) sensors. This study targeted this imminent challenge by developing an integrated NH4+/K+ auto-correction solid-state ISM (S-ISM) sensor assembly combined with a data-driven model to monitor [NH4+] under different [NH4+] and [K+] concentrations. The results showed that the interference of K+ was substantially alleviated for NH4+ measurement. The accuracy was enhanced by over 70% when examined using real wastewater and energy consumption was expected to reduce by 26% for a wastewater treatment plant, especially for wastewater with high [K+]. Furthermore, the uniquely structured S-ISMs were made by embedding the ionophores in a robust polyvinyl chloride (PVC) matrix containing plasticizers and a layer of carbon nanotubes (CNT) as ion-to-electron transducer, which maintained the selectivity and accuracy of the S-ISM sensor for 4 weeks in wastewater. NH4+/K+ sensor assembly integrated with data-driven correction models poses great potential in high-efficiency and energy-saving wastewater treatment and water reuse processes.
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Affiliation(s)
- Tianbao Wang
- Department of Civil & Environmental Engineering, University of Connecticut, Storrs, Connecticut, 06269, United States
| | - Zhiheng Xu
- Department of Civil & Environmental Engineering, University of Connecticut, Storrs, Connecticut, 06269, United States
| | - Yuankai Huang
- Department of Civil & Environmental Engineering, University of Connecticut, Storrs, Connecticut, 06269, United States
| | - Zheqin Dai
- Department of Civil & Environmental Engineering, University of Connecticut, Storrs, Connecticut, 06269, United States; School of Energy and Environment, Southeast University, Nanjing, Jiangsu, 210096, China
| | - Xingyu Wang
- Department of Civil & Environmental Engineering, University of Connecticut, Storrs, Connecticut, 06269, United States
| | - Meredith Lee
- Department of Civil & Environmental Engineering, University of Connecticut, Storrs, Connecticut, 06269, United States
| | - Christos Bagtzoglou
- Department of Civil & Environmental Engineering, University of Connecticut, Storrs, Connecticut, 06269, United States
| | - Christian Brückner
- Department of Chemistry, University of Connecticut, Storrs, Connecticut, 06269, United States
| | - Yu Lei
- Department of Biomedical Engineering, University of Connecticut, Storrs, Connecticut, 06269, United States
| | - Baikun Li
- Department of Civil & Environmental Engineering, University of Connecticut, Storrs, Connecticut, 06269, United States.
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14
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Salimiyan Rizi K, Aryan E, Meshkat Z, Ranjbar G, Sankian M, Ghazvini K, Farsiani H, Pourianfar HR, Rezayi M. The overview and perspectives of biosensors and Mycobacterium tuberculosis: A systematic review. J Cell Physiol 2020; 236:1730-1750. [PMID: 32930412 DOI: 10.1002/jcp.30007] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Accepted: 08/01/2020] [Indexed: 12/14/2022]
Abstract
Tuberculosis (TB) is referred to as a "consumption" or phthisis, which has been a fatal human disease for thousands of years. Mycobacterium tuberculosis (M. tb) might have been responsible for the death of more humans than any other bacterial pathogens. Therefore, the rapid diagnosis of this bacterial infection plays a pivotal role in the timely and appropriate treatment of the patients, as well as the prevention of disease spread. More than 98% of TB cases are reported in developing countries, and due to the lack of well-equipped and specialized diagnostic laboratories, development of effective diagnostic methods based on biosensors is essential for this bacterium. In this review, original articles published in English were retrieved from multiple databases, such as PubMed, Scopus, Google Scholar, Science Direct, and Cochrane Library during January 2010-October 2019. In addition, the reference lists of the articles were also searched. Among 109 electronically searched citations, 42 articles met the inclusion criteria. The highest potential and wide usage of biosensors for the diagnosis of M. tb and its drug resistance belonged to DNA electrochemical biosensors (isoniazid and rifampin strains). Use of biosensors is expanding for the detection of resistant strains of anti-TB antibiotics with high sensitivity and accuracy, while the speed of these sensory methods is considered essential as well. Furthermore, the lowest limit of detection (0.9 fg/ml) from an electrochemical DNA biosensor was based on graphene-modified iron-oxide chitosan hybrid deposited on fluorine tin oxide for the MPT64 antigen target. According to the results, the most common methods used for M. tb detection include acid-fast staining, cultivation, and polymerase chain reaction (PCR). Although molecular techniques (e.g., PCR and real-time PCR) are rapid and sensitive, they require sophisticated laboratory and apparatuses, as well as skilled personnel and expertise in the commentary of the results. Biosensors are fast, valid, and cost-efficient diagnostic method, and the improvement of their quality is of paramount importance in resource-constrained settings.
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Affiliation(s)
- Kobra Salimiyan Rizi
- Department of Medical Bacteriology and Virology, School of Medicine, Antimicrobial Resistance Research Center, Qaem University Hospital, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Ehsan Aryan
- Department of Medical Bacteriology and Virology, School of Medicine, Antimicrobial Resistance Research Center, Qaem University Hospital, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Zahra Meshkat
- Department of Medical Bacteriology and Virology, School of Medicine, Antimicrobial Resistance Research Center, Qaem University Hospital, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Golnaz Ranjbar
- Department of Nutrition, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mojtaba Sankian
- Division of Immunobiochemistry, Immunology Research Centre, Bu-Ali Research Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Kiarash Ghazvini
- Department of Medical Bacteriology and Virology, School of Medicine, Antimicrobial Resistance Research Center, Qaem University Hospital, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hadi Farsiani
- Department of Medical Bacteriology and Virology, School of Medicine, Antimicrobial Resistance Research Center, Qaem University Hospital, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hamid R Pourianfar
- Research Department of Industrial Fungi Biotechnology, Research Institute for Industrial Biotechnology, Academic Centre for Education, Culture and Research [ACECR]-Khorasan Razavi Province Branch, Mashhad, Iran
| | - Majid Rezayi
- Medical Toxicology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.,Department of Medical Biotechnology and Nanotechnology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
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15
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Direct Immersion Single-Drop Microextraction and Continuous-Flow Microextraction for the Determination of Manganese in Tonic Drinks and Seafood Samples. FOOD ANAL METHOD 2020. [DOI: 10.1007/s12161-020-01794-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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16
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Synthesis and Characterization of Arsenic(III) Oxide Nanoparticles as Potent Inhibitors of MCF 7 Cell Proliferation through Proapoptotic Mechanism. BIONANOSCIENCE 2020. [DOI: 10.1007/s12668-020-00726-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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17
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Liu Y, Liu H, Yao Z, Diao Y, Hu G, Zhang Q, Sun Y, Li Z. Fabrication, improved performance, and response mechanism of binary Ag–Sb alloy pH electrodes. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.135746] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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18
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19
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Badakhshan S, Ahmadzadeh S, Mohseni-Bandpei A, Aghasi M, Basiri A. Potentiometric sensor for iron (III) quantitative determination: experimental and computational approaches. BMC Chem 2019; 13:131. [PMID: 31832628 PMCID: PMC6859631 DOI: 10.1186/s13065-019-0648-x] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Accepted: 11/01/2019] [Indexed: 11/10/2022] Open
Abstract
The current work deals with fabrication and validation of a new highly Fe3+ selective sensor based on benzo-18-crown-6 (b-18C6) using the potentiometric method. The proposed sensor revealed satisfactory performance for quantitative evaluation of Fe3+ trace amount in environmental samples. The ratio of membrane ingredients optimized and the membrane with the composition of 4:30:65.5:0.5 mg of b-18C6:PVC:o-NPOE:KTpClPB exhibited the desirable Nernstian slope of 19.51 ± 0.10 (mV per decade of activity) over the pH range from 2.5 to 5.7 with an acceptable dynamic concentration range of 1.0 × 10-6 M to 1.0 × 10-1 M and lower detection limit of 8.0 × 10-7 M. The proposed sensor demonstrated an appropriate reproducibility with a rapid response time of 12 s and the suitable lifetime of 10 weeks. To validate the accurate response of the proposed sensor, AAS technique applied for the determination of Fe3+ in real aqueous mediums such as drinking tap water and hospital wastewater sample after treatment by electrocoagulation process. Theoretical studies carried out using DFT/B3LYP computational level with 6-311G basis set to optimize the adsorption sites of Fe+3 cationic species by b-18C6. The obtained adsorption energy with large negative value confirmed the formation of a stable complex.
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Affiliation(s)
- Somayeh Badakhshan
- 1Student research committee, Kerman University of Medical Sciences, Kerman, Iran.,Department of Environmental Health Engineering, School of Public Health, Bam University of Medical Sciences, Bam, Iran
| | - Saeid Ahmadzadeh
- 3Pharmaceutics Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, P.O. Box: 76175-493, 76169-11319 Kerman, Iran.,4Food, Drug and Cosmetics Safety Research Center, Kerman University of Medical Sciences, Kerman, Iran
| | - Anoushiravan Mohseni-Bandpei
- 5Department of Environmental Health Engineering, School of Public Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Majid Aghasi
- 6Department of Environmental Health Engineering, School of Public Health, Kerman University of Medical Sciences, Kerman, Iran
| | - Amir Basiri
- 7Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
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Laghrib F, Bakasse M, Lahrich S, El Mhammedi MA. Electrochemical sensors for improved detection of paraquat in food samples: A review. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 107:110349. [PMID: 31761239 DOI: 10.1016/j.msec.2019.110349] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2019] [Revised: 10/06/2019] [Accepted: 10/20/2019] [Indexed: 12/20/2022]
Abstract
Paraquat (1,10-dimethyl-4,40-dipyridinium chloride), also known as methyl viologen, is widely used as a quaternary ammonium herbicide (broadleaf weed killer) all over the world owing to its excellent effect in plant cells for crop protection and horticultural use. However, it is dangerous because of its high acute toxicity even at low concentrations. Its detection in the environment is therefore necessary. As a consequence of its widespread usage, it causes genotoxic, teratogenic as well as other environmental and ecological adverse impacts. Exposure to PQ leads to a high mortality rate because no specific drug is effective for treatment. Excessive consumption of PQ can cause cellular damage and necrosis in the brain, heart, lungs, liver, and kidneys. The diversity and sensitivity of the analyses currently required have forced the experimenter to use more advanced and efficient techniques, which can provide qualitative and quantitative results in complex environments. Electrochemical methods generally meet these criteria while offering other advantages to achieve excellent accuracy and fast handling. This paper provides an overview of the determination of PQ using electrochemical methods combined with several modified electrodes in food samples, including milk, apple juice, tomato juice, and potato juice. Emphasis was placed on the most relevant modifiers used to generate high selectivity and sensitivity such as noble metals, metallic nanoparticles, polymers, biomolecules, clay, and apatite minerals. Comprehensively, it is strongly convincing that the synergy between the sensor substrate and the modifier architecture gives the electrodes a high capacity to detect paraquat in complex matrices such as food. In line with the context, information's on the mechanism of electrooxidation or reduction of PQ has been reported with the discussion of some future prospects and some insights. To the best of our knowledge, there is no review article relating the electrochemical determination of paraquat.
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Affiliation(s)
- F Laghrib
- Univ. Sultan Moulay Slimane, Laboratoire de Chimie, Modélisation et Sciences de l'Environnement, Faculté Polydisciplinaire, 25 000, Khouribga, Morocco
| | - M Bakasse
- Univ. Chouaib Doukkali, Equipe d'Analyse des Micropolluants Organiques, Faculté de Sciences, El-Jadida, Morocco
| | - S Lahrich
- Univ. Sultan Moulay Slimane, Laboratoire de Chimie, Modélisation et Sciences de l'Environnement, Faculté Polydisciplinaire, 25 000, Khouribga, Morocco
| | - M A El Mhammedi
- Univ. Sultan Moulay Slimane, Laboratoire de Chimie, Modélisation et Sciences de l'Environnement, Faculté Polydisciplinaire, 25 000, Khouribga, Morocco.
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21
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Dolatabadi M, Ahmadzadeh S. A rapid and efficient removal approach for degradation of metformin in pharmaceutical wastewater using electro-Fenton process; optimization by response surface methodology. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2019; 80:685-694. [PMID: 31661448 DOI: 10.2166/wst.2019.312] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Presence of emerging contaminants such as pharmaceutical products in aquatic environments has received high concern due to their undesirable effect on wildlife and human health. Current work deals with developing a treatment model based on the electro- Fenton (EF) process for efficient removal of metformin (MET) from an aqueous medium. The obtained experimental results revealed that over the reaction time of 10 min and solution pH of 3, the maximum removal efficiency of 98.57% is achieved where the value of MET initial concentration, current density, and H2O2 dosage is set at 10 mg.L-1, 6 mA.cm-2, and 250 μL.L-1, respectively, which is in satisfactory agreement with the predicted removal efficiency of 98.6% with the desirability of 0.99. The presence of radical scavengers throughout the mineralization of MET under the EF process revealed that the generation of •OH radicals, as the main oxidative species, controlled the degradation mechanism. The obtained kinetics data best fitted to the first order kinetic model with the rate constant of 0.4224 min-1 (R2 = 0.9940). The developed treatment process under response surface methodology (RSM) was employed for modeling the obtained experimental data and successfully applied for efficient removal of the MET contaminant from pharmaceutical wastewater as an adequate and cost-effective approach.
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Affiliation(s)
- Maryam Dolatabadi
- Environmental Science and Technology Research Center, Department of Environmental Health Engineering, Shahid Sadoughi University of Medical Sciences, Yazd, Iran and Student Research Committee, Kerman University of Medical Sciences, Kerman, Iran
| | - Saeid Ahmadzadeh
- Pharmaceutics Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran and Food, Drug and Cosmetics Safety Research Center, Kerman University of Medical Sciences, Kerman, Iran E-mail: ;
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Ranjbar M, Dehghan Noudeh G, Hashemipour MA, Mohamadzadeh I. A systematic study and effect of PLA/Al 2O 3 nanoscaffolds as dental resins: mechanochemical properties. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2019; 47:201-209. [PMID: 30663399 DOI: 10.1080/21691401.2018.1548472] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
One of the major and important challenges in dental composite resin and restoration is the mechanical performance and property of materials. Nanotechnology can produce nanoscale materials that are used in dentistry to help stabilize and strengthen the dentistry. In this work, we study the synthesis and characterization of PLA/Al2O3 nanoscaffold in different conditions such as concentration, temperature, pH, microwave power and irradiation time. PLA/Al2O3 nanoscaffolds were prepared by a micelle-assisted hydrothermal method. Durability, stability and biodegradable nature of nanopolymers have created the much-applied potential for using this structures in many fields such as dental resin composites. Products were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transition electron microscopy (TEM), Fourier transformed infrared spectrum (FT-IR), Dynamic light scattering (DLS) and atomic force microscopy (AFM). The synthesis factors were designed by Taguchi technique to control the process systematically. It was found that the intermolecular crosslinks between PLA and Al2O3 nanoparticles cause significant improves in the mechanical properties of PLA/Al2O3 nanoscaffold as dental nanocomposites. The flexural strength (88.0 MPa), modulus (7.5 GPa) and compressive strength (157.2 MPa) were calculated for PLA/Al2O3 nanoscaffolds loaded in Heliomolar Flow composite resins at 80 ppm (wt) concentration.
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Affiliation(s)
- Mehdi Ranjbar
- a Pharmaceutics Research Center , Institute of Neuropharmacology, Kerman University of Medical Sciences , Kerman , Iran
| | - Gholamreza Dehghan Noudeh
- a Pharmaceutics Research Center , Institute of Neuropharmacology, Kerman University of Medical Sciences , Kerman , Iran
| | - Maryam-Alsadat Hashemipour
- b Department of Oral Medicine , School of Dentistry, Kerman University of Medical Sciences , Kerman , Iran
| | - Iman Mohamadzadeh
- c Oral and Dental Disease Research Center , Kerman University of Medical Sciences , Kerman , Iran
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Bakr AR, Rahaman MS. Crossflow electrochemical filtration for elimination of ibuprofen and bisphenol a from pure and competing electrolytic solution conditions. JOURNAL OF HAZARDOUS MATERIALS 2019; 365:615-621. [PMID: 30471576 DOI: 10.1016/j.jhazmat.2018.11.015] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2018] [Revised: 11/03/2018] [Accepted: 11/05/2018] [Indexed: 06/09/2023]
Abstract
For the first time, a crossflow electrochemical filtration system containing multiwalled carbon nanotubes (MWNTs) blended with buckypaper as a flat sheet dual membrane electrode was investigated for the removal of two contaminants of emerging concern, Ibuprofen and Bisphenol A. Breakthrough experiments revealed that a crossflow configuration could be highly efficient in eliminating both contaminants at applied DC potentials of 2 and 3 V over an extended period, from pure salt electrolyte as well as from synthetic secondary wastewater effluent. The shear flow provided consistent surface coverage resulting in excellent sorption performance. The long residence time of the two contaminants within the membrane (18.3 s) was sufficient enough to allow for almost complete degradation of phenolic aromatic products and quinoid rings and the resulting formation of aliphatic carboxylic acids, which was more evident at a higher applied potential (3 V). The formation of the non-toxic aliphatic carboxylic acids is a clear indication of the superior electrochemical performance of the crossflow mode over the dead-end flow-through system. Moreover, this study provides an in-depth understanding of different factors such as filter surface area and residence time that can greatly affect the removal of the contaminants considered.
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Affiliation(s)
- Ahmed Refaat Bakr
- Department of Building, Civil and Environmental Engineering, Concordia University, Montreal, Quebec, H3G 1M8, Canada
| | - Md Saifur Rahaman
- Department of Building, Civil and Environmental Engineering, Concordia University, Montreal, Quebec, H3G 1M8, Canada.
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Wang Y, Ou Y, Xie S, Chen D, Wang X, Pan Y, Wang Y, Huang L, Cheng G, Qu W, Liu Z, Tao Y, Yuan Z. Magnetic Graphene Solid-Phase Extraction for the Determination of 47 Kinds of Non-steroidal Anti-inflammatory Drug Residues in Animal Food with Liquid Chromatography Tandem Mass Spectrometry. FOOD ANAL METHOD 2019. [DOI: 10.1007/s12161-019-01440-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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25
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Wang X, Zhang L. Kinetic study of hydroxyl radical formation in a continuous hydroxyl generation system. RSC Adv 2018; 8:40632-40638. [PMID: 35557884 PMCID: PMC9091360 DOI: 10.1039/c8ra08511k] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Accepted: 11/13/2018] [Indexed: 01/21/2023] Open
Abstract
A novel and simple apparatus for the continuous generation of hydroxyl radicals has been constructed for the first time. In this paper, we focused on the investigation into the kinetic study of hydroxyl radical formation in the preparation process. The effects of the process parameters (such as the electrolyte solution concentration, graphite dosage, the applied current strength, and air flow rate) on the concentration of hydroxyl radicals were investigated in detail. The concentration of hydroxyl radicals first increased with the concentration of sodium dodecyl benzene sulfonate electrolyte solution, graphite dosage, applied current strength, and air flow rate, and then decreased. The concentration of ·OH and time well fit a third-order model of {C(·OH) = B 1 × t + B 2 × t 2 + B 3 × t 3 + intercept}. The highest concentration of hydroxyl radicals was 7.98 × 10-3 mol L-1 under the following conditions: sodium dodecyl benzene sulfonate concentration 10.0% (w/v), graphite dosage 5.0 g, applied current strength 10 mA, and air flow rate 1.0 L h-1. Our hydroxyl radical generation method can achieve the preparation of higher-concentration hydroxyl radicals continuously without using strong acid reagents. Moreover, our method has low energy consumption by using milliampere-level current. It is a green and efficient method for the generation of hydroxyl radicals. The kinetic study of hydroxyl radical generation can quantitatively predict the concentration changes with process parameters and provide a good prediction of hydroxyl radical generation, which is crucially important in industrial applications.
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Affiliation(s)
- Xin Wang
- Jilin Provincial Engineering Laboratory for the Complex Utilization of Petro-resources and Biomass, School of Chemical Engineering, Changchun University of Technology Changchun Jilin 130012 P. R. China +8618686672766
- School of Petrochemical Technology, Jilin Institute of Chemical Technology Jilin 132022 P. R. China
| | - Long Zhang
- Jilin Provincial Engineering Laboratory for the Complex Utilization of Petro-resources and Biomass, School of Chemical Engineering, Changchun University of Technology Changchun Jilin 130012 P. R. China +8618686672766
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Ahmadzadeh S, Dolatabadi M. Electrochemical treatment of pharmaceutical wastewater through electrosynthesis of iron hydroxides for practical removal of metronidazole. CHEMOSPHERE 2018; 212:533-539. [PMID: 30173107 DOI: 10.1016/j.chemosphere.2018.08.107] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Revised: 08/18/2018] [Accepted: 08/20/2018] [Indexed: 06/08/2023]
Abstract
Antibiotics as the severe contaminants of aqueous environments were received growing attention during the last decades. The current work is the first report on investigating the potency and efficiency of electrocoagulation process in the successful removal of metronidazole (MNZ) from pharmaceutical wastewater using response surface methodology based on central composite design. The applied method by optimizing the independent and combined effects of significant variables which affecting the EC process enhanced the removal efficiency of MNZ. Analysis of variance was applied to verify the significance of independent variables solely and their interactions. The best removal efficiency of 100% found under the optimal operating condition of initial MNZ concentration 21.6 mg L-1, pH 8.2, current density 6.0 mA cm-2, inter-electrode distance 3 cm, and reaction time of 14.6 min. Isotherm investigations revealed that the Langmuir model with the R2 of 0.994 best fitted to the obtained experimental equilibrium results. The fast adsorption of MNZ on the surface of Fe(OH)3 and [Fe(OH)2]+ with the equilibrium time of 15 min confirmed that the kinetics of the electrocoagulation process follow the pseudo-second-order model (R2 = 0.962). The electrocoagulation process under the optimal operating condition revealed that the electrical energy consumption per each m3 of treated pharmaceutical wastewater, per each g of MNZ, removed, and per each kg of Fe electrode consumed, were found to be 0.516 kWh m-3, 0.0234 kWh g-1, and 0.0436 kWh kg-1, respectively.
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Affiliation(s)
- Saeid Ahmadzadeh
- Pharmaceutics Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran.
| | - Maryam Dolatabadi
- Environmental Science and Technology Research Center, Department of Environmental Health Engineering, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
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Ahmadzadeh S, Dolatabadi M. In situ generation of hydroxyl radical for efficient degradation of 2,4-dichlorophenol from aqueous solutions. ENVIRONMENTAL MONITORING AND ASSESSMENT 2018; 190:340. [PMID: 29748751 DOI: 10.1007/s10661-018-6697-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Accepted: 04/24/2018] [Indexed: 05/04/2023]
Abstract
Since 2,4-dichlorophenol (2,4-DCP) as a priority pollutant is used in numerous industrial processes, its removal from the aqueous environment is of utmost importance and desire. Herein, the authors describe an electrochemical treatment process for efficient removal of 2,4-DCP from aqueous solutions using electro-Fenton (EF) process. Response surface methodology (RSM) was applied to optimize the operating parameters. Analysis of variance (ANOVA) confirmed the significance of the predicted model. The effect of independent variables on the removal of 2,4-DCP was investigated and the best removal efficiency of 98.28% achieved under the optimal experimental condition including initial pH of 3, H2O2 dosage of 80 μL, initial 2,4-DCP concentration of 3.25 mg L-1, current density of 3.32 mA cm-2, and inter-electrode distance of 5.04 cm. The predicted removal efficiency was in satisfactory agreement with the obtained experimental removal efficiency of 99.21%. According to the obtained polynomial model, H2O2 dosage revealed the most significant effect on degradation process. The kinetic investigation revealed that the first-order model with the correlation coefficient of 0.9907 and rate constant (Kapp) of 0.831 min-1 best fitted with the experimental results. Generation of the hydroxyl radicals throughout the EF process controlled the degradation process.
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Affiliation(s)
- Saeid Ahmadzadeh
- Pharmaceutics Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran.
| | - Maryam Dolatabadi
- Student Research Committee, Kerman University of Medical Sciences, Kerman, Iran.
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Ahmadzadeh S, Dolatabadi M. Modeling and kinetics study of electrochemical peroxidation process for mineralization of bisphenol A; a new paradigm for groundwater treatment. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.01.080] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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Ramanjaneyulu PS, Kundu K, Sharma MK, Nayak SK. Development of New Cs+
Ion-Selective Electrode with Alkyl-Bridged Calix[4]arene Crown-6 Compounds for the Determination of Cs+
in Nuclear Waste Streams. ChemistrySelect 2017. [DOI: 10.1002/slct.201701018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Pentapati S. Ramanjaneyulu
- Radioanalytical Chemistry Division; Bhabha Atomic Research Centre, Trombay; Mumbai- 400085 India, Tel.: +91 022 25595011, Fax: +91 22 25505150/1/2
| | - Kshama Kundu
- Bio-Organic Division; Bhabha Atomic Research Centre, Trombay; Mumbai- 400085 India
| | - Manoj K. Sharma
- Fuel Chemistry Division; Bhabha Atomic Research Centre, Trombay; Mumbai- 400085 India
| | - Sandeep K. Nayak
- Bio-Organic Division; Bhabha Atomic Research Centre, Trombay; Mumbai- 400085 India
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31
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Ramanjaneyulu PS, Kumar AN, Sharma MK. Development of a new all solid contact Cs+ ion selective electrode. J Radioanal Nucl Chem 2017. [DOI: 10.1007/s10967-017-5318-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Optimization of electrocoagulation process for efficient removal of ciprofloxacin antibiotic using iron electrode; kinetic and isotherm studies of adsorption. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2016.11.093] [Citation(s) in RCA: 89] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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A New N-Heterocyclic Carbene Ionophore in Plasticizer-free Polypyrrole Membrane for Determining Ag+ in Tap Water. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.02.173] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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