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Yasmeen S, Burratti L, Duranti L, Sgreccia E, Prosposito P. Photocatalytic Degradation of Organic Pollutants-Nile Blue, Methylene Blue, and Bentazon Herbicide-Using NiO-ZnO Nanocomposite. Nanomaterials (Basel) 2024; 14:470. [PMID: 38470799 DOI: 10.3390/nano14050470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 02/26/2024] [Accepted: 03/01/2024] [Indexed: 03/14/2024]
Abstract
Water pollution poses a significant threat to both human health and ecosystem integrity. Chemical pollutants such as dyes and pesticides affect the water quality and endanger aquatic life. Among the methods for water purification from organic pollutants, photodegradation is certainly a valid technique to decrease such contaminants. In this work, pristine NiO, ZnO, and NiO-ZnO photocatalysts were synthesized by the homogeneous co-precipitation method. X-ray diffraction confirms the formation of a photocatalyst consisting of ZnO (Hexagonal) and NiO (Cubic) structures. The crystalline size was calculated by the Scherrer formula, which is 19 nm for the NiO-ZnO photocatalyst. The band gap measurements of the prepared samples were obtained using the Tauc Plot, equation which is 2.93 eV, 3.35 eV and 2.63 eV for NiO, ZnO, and NiO-ZnO photocatalysts, respectively. The photocatalytic performance of NiO-ZnO nanocomposite was evaluated through the degradation of Methylene Blue and Nile Blue dyes under sunlight, and Bentazon herbicide under a UV light. Photocatalyst degradation efficiency was 95% and 97% for Methylene Blue and Nile Blue in 220 min under sunlight while a degradation of 70% for Bentazon after 100 min under UV light source was found.
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Affiliation(s)
- Sadaf Yasmeen
- Industrial Engineering Department, University of Rome Tor Vergata, Via del Politecnico 1, 00133 Rome, Italy
| | - Luca Burratti
- Department of Sciences, University of Roma Tre, Via della Vasca Navale 79, 00146 Rome, Italy
| | - Leonardo Duranti
- Department of Chemical Science and Technologies, University of Rome Tor Vergata, Via della Ricerca Scientifica 1, 00133 Rome, Italy
| | - Emanuela Sgreccia
- Industrial Engineering Department, University of Rome Tor Vergata, Via del Politecnico 1, 00133 Rome, Italy
| | - Paolo Prosposito
- Industrial Engineering Department, University of Rome Tor Vergata, Via del Politecnico 1, 00133 Rome, Italy
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Vassalini I, Maddaloni M, Depedro M, De Villi A, Ferroni M, Alessandri I. From Water for Water: PEDOT:PSS-Chitosan Beads for Sustainable Dyes Adsorption. Gels 2023; 10:37. [PMID: 38247760 PMCID: PMC10815287 DOI: 10.3390/gels10010037] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 12/25/2023] [Accepted: 12/28/2023] [Indexed: 01/23/2024] Open
Abstract
This study investigates the viability of developing chitosan-based hydrogels derived from waste shrimp shells for the removal of methylene blue and methyl orange, thereby transforming food waste into advanced materials for environmental remediation. Despite chitosan-based adsorbents being conventionally considered ideal for the removal of negative pollutants, through targeted functionalization with poly(3,4-ethylenedioxythiophene): polystyrene sulfonate (PEDOT:PSS) at varying concentrations, we successfully enhance the hydrogels' efficacy in also adsorbing positively charged adsorbates. Specifically, the incorporation of PEDOT:PSS at a concentration of 10% v/v emerges as a critical factor in facilitating the robust adsorption of dyes. In the case of the anionic dye methyl orange (MO, 10-5 M), the percentage of removed dye passed from 47% (for beads made of only chitosan) to 66% (for beads made of chitosan-PEDOT:PSS 10%), while, in the case of the cationic dye methylene blue (MB, 10-5 M), the percentage of removed dye passed from 52 to 100%. At the basis of this enhancement, there is an adsorption mechanism resulting from the interplay between electrostatic forces and π-π interactions. Furthermore, the synthesized functionalized hydrogels exhibit remarkable stability and reusability (at least five consecutive cycles) in the case of MB, paving the way for the development of cost-effective and sustainable adsorbents. This study highlights the potential of repurposing waste materials for environmental benefits, introducing an innovative approach to address the challenges regarding water pollution.
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Affiliation(s)
- Irene Vassalini
- Sustainable Chemistry and Materials Laboratory, Department of Information Engineering, University of Brescia, Via Branze 38, 25123 Brescia, Italy
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), Research Unit of Brescia, Via Branze 38, 25123 Brescia, Italy
- CNR-INO, Research Unit of Brescia, Via Branze 38, 25123 Brescia, Italy
| | - Marina Maddaloni
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), Research Unit of Brescia, Via Branze 38, 25123 Brescia, Italy
- Chemistry for Technology Laboratory, Department of Mechanical and Industrial Engineering, University of Brescia, Via Branze 38, 25123 Brescia, Italy
| | - Mattia Depedro
- Sustainable Chemistry and Materials Laboratory, Department of Information Engineering, University of Brescia, Via Branze 38, 25123 Brescia, Italy
| | - Alice De Villi
- Sustainable Chemistry and Materials Laboratory, Department of Information Engineering, University of Brescia, Via Branze 38, 25123 Brescia, Italy
| | - Matteo Ferroni
- Department of Civil, Environmental, Architectural Engineering and Mathematics, University of Brescia, Via Branze 43, 25123 Brescia, Italy
- CNR-IMM Bologna, Via Gobetti 101, 40129 Bologna, Italy
| | - Ivano Alessandri
- Sustainable Chemistry and Materials Laboratory, Department of Information Engineering, University of Brescia, Via Branze 38, 25123 Brescia, Italy
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), Research Unit of Brescia, Via Branze 38, 25123 Brescia, Italy
- CNR-INO, Research Unit of Brescia, Via Branze 38, 25123 Brescia, Italy
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Flores D, Almeida CMR, Gomes CR, Balula SS, Granadeiro CM. Tailoring of Mesoporous Silica-Based Materials for Enhanced Water Pollutants Removal. Molecules 2023; 28:molecules28104038. [PMID: 37241778 DOI: 10.3390/molecules28104038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 04/24/2023] [Accepted: 05/05/2023] [Indexed: 05/28/2023] Open
Abstract
The adsorptive performance of mesoporous silica-based materials towards inorganic (metal ions) and organic (dyes) water pollutants was investigated. Mesoporous silica materials with different particle size, surface area and pore volume were prepared and tailored with different functional groups. These materials were then characterised by solid-state techniques, namely vibrational spectroscopy, elemental analysis, scanning electron microscopy and nitrogen adsorption-desorption isotherms, allowing the successful preparation and structural modifications of the materials to be confirmed. The influence of the physicochemical properties of the adsorbents towards the removal of metal ions (Ni2+, Cu2+ and Fe3+) and organic dyes (methylene blue and methyl green) from aqueous solutions was also investigated. The results reveal that the exceptionally high surface area and suitable ζ-potential of the nanosized mesoporous silica nanoparticles (MSNPs) seem to favour the adsorptive capacity of the material for both types of water pollutants. Kinetic studies were performed for the adsorption of organic dyes by MSNPs and large-pore mesoporous silica (LPMS), suggesting that the process follows a pseudo-second-order model. The recyclability along consecutive adsorption cycles and the stability of the adsorbents after use were also investigated, showing that the material can be reused. Current results show the potentialities of novel silica-based material as a suitable adsorbent to remove pollutants from aquatic matrices with an applicability to reduce water pollution.
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Affiliation(s)
- Daniela Flores
- LAQV-REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, s/n, 4169-007 Porto, Portugal
| | - C Marisa R Almeida
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208 Matosinhos, Portugal
| | - Carlos R Gomes
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208 Matosinhos, Portugal
| | - Salete S Balula
- LAQV-REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, s/n, 4169-007 Porto, Portugal
| | - Carlos M Granadeiro
- LAQV-REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, s/n, 4169-007 Porto, Portugal
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Cho HH, Jung DH, Heo JH, Lee CY, Jeong SY, Lee JH. Gold Nanoparticles as Exquisite Colorimetric Transducers for Water Pollutant Detection. ACS Appl Mater Interfaces 2023; 15:19785-19806. [PMID: 37067786 DOI: 10.1021/acsami.3c00627] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Gold nanoparticles (AuNPs) are useful nanomaterials as transducers for colorimetric sensors because of their high extinction coefficient and ability to change color depending on aggregation status. Therefore, over the past few decades, AuNP-based colorimetric sensors have been widely applied in several environmental and biological applications, including the detection of water pollutants. According to various studies, water pollutants are classified into heavy metals or cationic metal ions, toxins, and pesticides. Notably, many researchers have been interested in AuNP that detect water pollutants with high sensitivity and selectivity, while offering no adverse environmental issues in terms of AuNP use. This review provides a representative overview of AuNP-based colorimetric sensors for detecting several water pollutants. In particular, we emphasize the advantages of AuNP as colorimetric transducers for water pollutant detection in terms of their low toxicity, high stability, facile processability, and unique optical properties. Next, we discuss the status quo and future prospects of AuNP-based colorimetric sensors for the detection of water pollutants. We believe that this review will promote research and development of AuNP as next-generation colorimetric transducers for water pollutant detection.
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Affiliation(s)
- Hui Hun Cho
- School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
- Research Center for Advanced Materials Technology (RCAMT), Core Research Institute (CRI), Suwon 16419, Republic of Korea
| | - Do Hyeon Jung
- School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
| | - Jun Hyuk Heo
- School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
- Research Center for Advanced Materials Technology (RCAMT), Core Research Institute (CRI), Suwon 16419, Republic of Korea
| | - Chae Yeon Lee
- School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
| | - Sang Yun Jeong
- School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
| | - Jung Heon Lee
- School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
- Research Center for Advanced Materials Technology (RCAMT), Core Research Institute (CRI), Suwon 16419, Republic of Korea
- Department of Metabiohealth, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
- Biomedical Institute for Convergence at SKKU (BICS), Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
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Herrera-Domínguez M, Morales-Luna G, Mahlknecht J, Cheng Q, Aguilar-Hernández I, Ornelas-Soto N. Optical Biosensors and Their Applications for the Detection of Water Pollutants. Biosensors (Basel) 2023; 13:bios13030370. [PMID: 36979582 PMCID: PMC10046542 DOI: 10.3390/bios13030370] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 03/01/2023] [Accepted: 03/02/2023] [Indexed: 05/14/2023]
Abstract
The correct detection and quantification of pollutants in water is key to regulating their presence in the environment. Biosensors offer several advantages, such as minimal sample preparation, short measurement times, high specificity and sensibility and low detection limits. The purpose of this review is to explore the different types of optical biosensors, focusing on their biological elements and their principle of operation, as well as recent applications in the detection of pollutants in water. According to our literature review, 33% of the publications used fluorescence-based biosensors, followed by surface plasmon resonance (SPR) with 28%. So far, SPR biosensors have achieved the best results in terms of detection limits. Although less common (22%), interferometers and resonators (4%) are also highly promising due to the low detection limits that can be reached using these techniques. In terms of biological recognition elements, 43% of the published works focused on antibodies due to their high affinity and stability, although they could be replaced with molecularly imprinted polymers. This review offers a unique compilation of the most recent work in the specific area of optical biosensing for water monitoring, focusing on both the biological element and the transducer used, as well as the type of target contaminant. Recent technological advances are discussed.
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Affiliation(s)
- Marcela Herrera-Domínguez
- Tecnológico de Monterrey, Escuela de Ingeniería y Ciencias, Ave. Eugenio Garza Sada 2501, Monterrey 64849, Mexico
| | - Gesuri Morales-Luna
- Departamento de Física y Matemáticas, Universidad Iberoamericana, Prolongación Paseo de la Reforma 880, Mexico City 01219, Mexico
| | - Jürgen Mahlknecht
- Tecnológico de Monterrey, Escuela de Ingeniería y Ciencias, Ave. Eugenio Garza Sada 2501, Monterrey 64849, Mexico
| | - Quan Cheng
- Department of Chemistry, University of California, Riverside, CA 92521, USA
| | - Iris Aguilar-Hernández
- Tecnológico de Monterrey, Escuela de Ingeniería y Ciencias, Ave. Eugenio Garza Sada 2501, Monterrey 64849, Mexico
- Correspondence: (I.A.-H.); (N.O.-S.)
| | - Nancy Ornelas-Soto
- Tecnológico de Monterrey, Escuela de Ingeniería y Ciencias, Ave. Eugenio Garza Sada 2501, Monterrey 64849, Mexico
- Correspondence: (I.A.-H.); (N.O.-S.)
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6
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Zhou Y, Stepanenko A, Kishchenko O, Xu J, Borisjuk N. Duckweeds for Phytoremediation of Polluted Water. Plants (Basel) 2023; 12:589. [PMID: 36771672 PMCID: PMC9919746 DOI: 10.3390/plants12030589] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 12/28/2022] [Accepted: 01/19/2023] [Indexed: 06/18/2023]
Abstract
Tiny aquatic plants from the Lemnaceae family, commonly known as duckweeds, are often regarded as detrimental to the environment because of their ability to quickly populate and cover the surfaces of bodies of water. Due to their rapid vegetative propagation, duckweeds have one of the fastest growth rates among flowering plants and can accumulate large amounts of biomass in relatively short time periods. Due to the high yield of valuable biomass and ease of harvest, duckweeds can be used as feedstock for biofuels, animal feed, and other applications. Thanks to their efficient absorption of nitrogen- and phosphate-containing pollutants, duckweeds play an important role in the restorative ecology of water reservoirs. Moreover, compared to other species, duckweed species and ecotypes demonstrate exceptionally high adaptivity to a variety of environmental factors; indeed, duckweeds remove and convert many contaminants, such as nitrogen, into plant biomass. The global distribution of duckweeds and their tolerance of ammonia, heavy metals, other pollutants, and stresses are the major factors highlighting their potential for use in purifying agricultural, municipal, and some industrial wastewater. In summary, duckweeds are a powerful tool for bioremediation that can reduce anthropogenic pollution in aquatic ecosystems and prevent water eutrophication in a simple, inexpensive ecologically friendly way. Here we review the potential for using duckweeds in phytoremediation of several major water pollutants: mineral nitrogen and phosphorus, various organic chemicals, and heavy metals.
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Affiliation(s)
- Yuzhen Zhou
- School of Life Science, Huaiyin Normal University, Huai’an 223300, China
| | - Anton Stepanenko
- Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), 06466 Gatersleben, Germany
- Institute of Cell Biology and Genetic Engineering, National Academy of Sciences of Ukraine, 03143 Kyiv, Ukraine
| | - Olena Kishchenko
- Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), 06466 Gatersleben, Germany
- Institute of Cell Biology and Genetic Engineering, National Academy of Sciences of Ukraine, 03143 Kyiv, Ukraine
| | - Jianming Xu
- School of Life Science, Huaiyin Normal University, Huai’an 223300, China
| | - Nikolai Borisjuk
- School of Life Science, Huaiyin Normal University, Huai’an 223300, China
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Yu Q, Sun Z, Shen J, Xu X, Chen X. Interactive Allocation of Water Pollutant Initial Emission Rights in a Basin under Total Amount Control: A Leader-Follower Hierarchical Decision Model. Int J Environ Res Public Health 2023; 20:1511. [PMID: 36674265 PMCID: PMC9861537 DOI: 10.3390/ijerph20021511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 01/05/2023] [Accepted: 01/08/2023] [Indexed: 06/17/2023]
Abstract
The initial emission rights allocation is the key measure to achieve the goal of total amount control and deepen the emission trading system. Although many studies have focused on the modeling of initial emission rights allocation, such as using game theory and multi-objective optimization methods, few studies have observed the hierarchical relationship of mutual interference and restriction between watershed management agency and local governments in each subarea during allocation. This relationship directly affects the rationality of the results of regional emission rights allocation. In this study, a leader-follower hierarchical decision model (LFHDM) for allocating initial emission rights in a basin is developed. Based on the bilevel programming approach, the model simulates the interactive decision-making process between the watershed management agency of the upper-level model (LFHDM-U) and the local government of the lower-level model (LFHDM-L) in the allocation under total amount control. A case study of China's Yellow River Basin is conducted to demonstrate the feasibility and practicality of the model. Findings reveal that, compared with the single-level model, the developed LFHDM has higher satisfaction with the allocation scheme. Under different scenarios, the overall satisfaction of the configuration schemes of COD and NH3-N in each province and autonomous region remains above 0.9. In addition, the allocation volumes of COD and NH3-N in each province of the Yellow River Basin in planning year increase with the enhancement of allowable assimilative capacity of water bodies, but the interval gap of satisfaction with allocation schemes gradually narrows. It shows that when the allowable assimilation capacity of a water body is low, the decision-making of the allocation scheme needs to be more cautious. Moreover, for the Yellow River Basin, apart from Qinghai and Sichuan, the task of reducing water pollutants in other provinces in the next few years is very arduous. The average reduction of total COD and NH3-N in the basin is about 48% and 46%, respectively.
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Affiliation(s)
- Qianwen Yu
- Business School, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Zehao Sun
- Business School, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Junyuan Shen
- Suzhou Institute of Development and Planning Studies, Suzhou 215004, China
| | - Xia Xu
- Architectural Engineering School, Tongling University, Tongling 244000, China
| | - Xiangnan Chen
- Business School, Jiangsu Open University, Nanjing 214257, China
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Lu CH, Cheng MR, Chen S, Syu WL, Chien MY, Wang KS, Chen JS, Lee PH, Liu TY. Flexible PDMS-Based SERS Substrates Replicated from Beetle Wings for Water Pollutant Detection. Polymers (Basel) 2022; 15. [PMID: 36616540 DOI: 10.3390/polym15010191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Revised: 12/14/2022] [Accepted: 12/27/2022] [Indexed: 01/04/2023] Open
Abstract
The flexible surface-enhanced Raman scattering (SERS) sensor, which has the bionic 3D nanoarray structure of a beetle-wing substrate (BWS), was successfully prepared by replicated technology and thermal evaporation. The bionic structure was replicated with polydimethylsiloxane (PDMS) and then silver (Ag) nanoisland thin films were deposited by thermal evaporation. The deposition times and thicknesses (25-40 nm) of the Ag thin films were manipulated to find the optimal SERS detection capability. The Ag nanoisland arrays on the surface of the bionic replicated PDMS were observed by scanning electron microscope (SEM), X-ray diffraction (XRD), and contact angle, which can generate strong and reproducible three-dimensional hotspots (3D hotspots) to enhance Raman signals. The water pollutant, rhodamine 6G (R6G), was used as a model molecule for SERS detection. The results show that 35 nm Ag deposited on a PDMS-BWS SERS substrate displays the strongest SERS intensity, which is 10 times higher than that of the pristine BWS with 35 nm Ag coating, due to the excellent 3D bionic structure. Our results demonstrate that bionic 3D SERS sensors have the potential to be applied in wearable devices and sensors to detect biomolecules and environmental pollutants, such as industrial wastewater, in the future.
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Jiang X, Zhang H, Wang X, Zhang X, Ding K. Comprehensive Analysis of the Association between Human Diseases and Water Pollutants. Int J Environ Res Public Health 2022; 19:ijerph192416475. [PMID: 36554354 PMCID: PMC9779172 DOI: 10.3390/ijerph192416475] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 11/28/2022] [Accepted: 12/02/2022] [Indexed: 05/31/2023]
Abstract
Drinking water is an important natural resource. For many people worldwide, especially in developing countries, access to safe drinking water is still a dream. An increasing number of human activities and industrialization have caused various physical, chemical, and biological pollutants to enter water bodies, affecting human health. Water pollutants contain a vast number of additives, such as perfluorinated chemicals, polybrominated diphenyl ethers, phthalate, nanomaterials, insecticides, microcystins, heavy metals, and pharmacologies. In this work, we aim to explore the potential relationship between water pollutants and human diseases. Here, we explored an integrative approach to identify genes, biological processes, molecular functions, and diseases linked to exposure to these water pollutants. These processes and functions affected by water pollutants are related to many diseases, including colonic neoplasms, breast neoplasms, hepatitis B, bladder cancer, and human cytomegalovirus infection. In addition, further analysis revealed the genes that play a key role in the human diseases induced by water pollutants. Therefore, conducting an integrative toxicogenomic analysis of water pollutants is more appropriate for evaluating the potential effects of water pollutants on human health.
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Affiliation(s)
- Xinlu Jiang
- Department of Hematology, Anhui Provincial Hospital Affiliated to Anhui Medical University, Hefei 230032, China
| | - Huanhuan Zhang
- Department of Respiratory, Wannan Medical College, Wuhu 241002, China
| | - Xiaoyan Wang
- Department of Hematology, Anhui Provincial Hospital Affiliated to Anhui Medical University, Hefei 230032, China
| | - Xu Zhang
- Department of Urology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Kaiyang Ding
- Department of Hematology, Anhui Provincial Hospital Affiliated to Anhui Medical University, Hefei 230032, China
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Su Y, Shi Y, Jiang M, Chen S. One-Step Synthesis of Nitrogen-Doped Porous Biochar Based on N-Doping Co-Activation Method and Its Application in Water Pollutants Control. Int J Mol Sci 2022; 23. [PMID: 36498946 DOI: 10.3390/ijms232314618] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 11/11/2022] [Accepted: 11/17/2022] [Indexed: 11/24/2022] Open
Abstract
In this work, birch bark (BB) was used for the first time to prepare porous biochars via different one-step methods including direct activation (BBB) and N-doping co-activation (N-BBB). The specific surface area and total pore volume of BBB and N-BBB were 2502.3 and 2292.7 m2/g, and 1.1389 and 1.0356 cm3/g, respectively. When removing synthetic methyl orange (MO) dye and heavy metal Cr6+, both BBB and N-BBB showed excellent treatment ability. The maximum adsorption capacities of BBB and N-BBB were 836.9 and 858.3 mg/g for MO, and 141.1 and 169.1 mg/g for Cr6+, respectively, which were higher than most previously reported biochar adsorbents. The probable adsorption mechanisms, including pore filling, π-π interaction, H-bond interaction, and electrostatic attraction, supported the biochars' demonstrated high performance. In addition, after five recycles, the removal rates remained above 80%, which showed the high stability of the biochars. This work verified the feasibility of the one-step N-doping co-activation method to prepare high-performance biochars, and two kinds of biochars with excellent performance (BBB and N-BBB) were prepared. More importantly, this method provides new directions and ideas for the development and utilization of other biomasses.
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Crișan HG, Șerdean F, Bîrleanu C, Pustan M, Crișan OA. An Efficient Method for Testing the Quality of Drinking-Water Filters Used for Home Necessities. Int J Environ Res Public Health 2022; 19:4085. [PMID: 35409770 DOI: 10.3390/ijerph19074085] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 03/26/2022] [Accepted: 03/28/2022] [Indexed: 02/01/2023]
Abstract
This paper presents research conducted in the direction of analyzing the efficiency of filters used for drinking water intended for domestic consumption, with effects on the water quality gained from the public distribution network. A basic method that uses accessible techniques, such as optical microscopy and tests that involve the use of existing products on the consumer market, was developed regarding the filtration capacities of the main filters existing on the market—a method that has advantages, such as speed and ease of application, a unitary character in obtaining samples, low costs, and high efficiency. The technique approached is that of microscopy, and the samples used were taken from the laboratory tests made on the mentioned filters, using a specific experimental stand designed to support laboratory tests by using chosen filter cartridges. The research results obtained were analyzed to make a classification from the perspective of filtration efficiency, in terms of using statistical analysis tools (mathematical models and methods processed in MATLAB software). Moreover, by using a certain type of application based on specific mathematical algorithms, which takes into account some influential factors with a decisive role on household consumers, it was aimed to identify the optimal filter element for acquisition and use in its own regime. The aim of the study was to identify the optimal filter cartridge from the perspective of quality–price ratio.
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Fagieh TM, Bakhsh EM, Khan SB, Akhtar K, Asiri AM. Alginate/Banana Waste Beads Supported Metal Nanoparticles for Efficient Water Remediation. Polymers (Basel) 2021; 13:polym13234054. [PMID: 34883558 PMCID: PMC8659063 DOI: 10.3390/polym13234054] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 10/30/2021] [Accepted: 11/08/2021] [Indexed: 11/23/2022] Open
Abstract
Water pollution is considered a perilous issue that requires an immediate solution. This is largely because of the strong correlation between the global population increase and the amount of waste produced (most notably food waste). This project prompts the conversion of food waste into useful materials that can be used with sodium alginate as a catalytic support for metal nanoparticles. Sodium alginate/banana peel (Alg/BP) beads were prepared simply using an eco-friendly method. The prepared materials were modified using nanostructured materials to enhance their characteristics. Alg/BP beads were employed as adsorbents for metals that were then treated with sodium borohydride to produce MNPs@Alg/BP. Different MNPs@Alg/BP (MNPs = Ag, Ni, Co, Fe, and Cu) were used as catalysts for reducing 4-nitrophenol (4-NP) by NaBH4 to evaluate each catalyst performance in a model reaction. The results exhibited that Cu@Alg/BP was most efficient toward complete transformation of 4-NP. Therefore, Cu@Alg/BP was also used as a catalyst for the reduction of potassium ferricyanide, congo red, methyl orange (MO), and methylene blue. It was found that Cu@Alg/BP beads catalytically reduced up to 95–99% of above pollutants within a few minutes. Cu@Alg/BP beads were more selective in reducing MO among the pollutants. The catalytic activity of Cu@Alg/BP was examined by evaluating the impact of numerous parameters on MO reduction. The results are expected to provide a new strategy for the removal of inorganic and organic water contaminants based on efficient and low-cost catalysts.
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Affiliation(s)
- Taghreed M Fagieh
- Department of Chemistry, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Esraa M Bakhsh
- Department of Chemistry, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Sher Bahadar Khan
- Department of Chemistry, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Center of Excellence for Advanced Materials, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Kalsoom Akhtar
- Department of Chemistry, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Abdullah M Asiri
- Department of Chemistry, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Center of Excellence for Advanced Materials, King Abdulaziz University, Jeddah 21589, Saudi Arabia
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13
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McGuire CC, Lawrence BP, Robert J. Thyroid Disrupting Chemicals in Mixture Perturb Thymocyte Differentiation in Xenopus laevis Tadpoles. Toxicol Sci 2021; 181:262-272. [PMID: 33681995 DOI: 10.1093/toxsci/kfab029] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Endocrine disrupting chemicals (EDCs) can perturb the hypothalamic-pituitary-thyroid axis affecting human and wildlife health. Thyroid hormones (TH) are crucial regulators of metabolism, growth, and differentiation. The perinatal stage is most reliant on TH, thus vulnerable to TH disrupting chemicals. Dysregulation of TH signaling during perinatal development can weaken T cell function in maturity, raising the question of whether TH disrupting chemicals can perturb thymocyte development. Using Xenopus laevis tadpoles as model, we determined TH disrupting effects and thymocyte alterations following exposure to a mixture of common waterborne TH disrupting chemicals at concentrations similar to those found in contaminated water. This mixture included naphthalene, ethylene glycol, ethoxylated nonylphenol, and octylphenol, which have documented TH disrupting activity. Besides hypertrophy-like pathology in the thyroid gland and delayed metamorphosis, exposure to the mixture antagonized TH receptor-induced transcription of the Krüppel-like factor 9 transcription factor and significantly raised thyroid-stimulating hormone gene expression in the brain, two genes that modulate thymocyte differentiation. Importantly, exposure to this mixture reduced the number of Xenopus immature cortical thymocyte-specific-antigen (CTX+) and mature CD8+ thymocytes, whereas co-exposure with exogenous TH (T3) abolished the effect. When each chemical of the mixture was individually tested, only ethylene glycol induced significant antagonist effects on brain, thymic gene expression, and CD8+ thymocytes. These results suggest that EDCs in mixture are more potent than each chemical alone to perturb thymocyte development through TH-dependent pathway, and provide a starting point to research TH influence on thymocyte development.
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Affiliation(s)
- Connor C McGuire
- Department of Microbiology & Immunology, University of Rochester Medical Center, Rochester, New York 1462.,Department of Environmental Medicine, University of Rochester Medical Center, Rochester, New York 1462
| | - B Paige Lawrence
- Department of Microbiology & Immunology, University of Rochester Medical Center, Rochester, New York 1462.,Department of Environmental Medicine, University of Rochester Medical Center, Rochester, New York 1462
| | - Jacques Robert
- Department of Microbiology & Immunology, University of Rochester Medical Center, Rochester, New York 1462.,Department of Environmental Medicine, University of Rochester Medical Center, Rochester, New York 1462
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14
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Burratti L, Ciotta E, De Matteis F, Prosposito P. Metal Nanostructures for Environmental Pollutant Detection Based on Fluorescence. Nanomaterials (Basel) 2021; 11:276. [PMID: 33494342 PMCID: PMC7911013 DOI: 10.3390/nano11020276] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 01/15/2021] [Accepted: 01/18/2021] [Indexed: 12/14/2022]
Abstract
Heavy metal ions and pesticides are extremely dangerous for human health and environment and an accurate detection is an essential step to monitor their levels in water. The standard and most used methods for detecting these pollutants are sophisticated and expensive analytical techniques. However, recent technological advancements have allowed the development of alternative techniques based on optical properties of noble metal nanomaterials, which provide many advantages such as ultrasensitive detection, fast turnover, simple protocols, in situ sampling, on-site capability and reduced cost. This paper provides a review of the most common photo-physical effects impact on the fluorescence of metal nanomaterials and how these processes can be exploited for the detection of pollutant species. The final aim is to provide readers with an updated guide on fluorescent metallic nano-systems used as optical sensors of heavy metal ions and pesticides in water.
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Affiliation(s)
- Luca Burratti
- Department of Industrial Engineering and INSTM, University of Rome Tor Vergata, Via del Politecnico 1, 00133 Rome, Italy; (L.B.); (F.D.M.)
| | - Erica Ciotta
- Institute for Microelectronics and Microsystems (IMM) CNR Tor Vergata, Via del Fosso del Cavaliere 100, 00133 Rome, Italy;
| | - Fabio De Matteis
- Department of Industrial Engineering and INSTM, University of Rome Tor Vergata, Via del Politecnico 1, 00133 Rome, Italy; (L.B.); (F.D.M.)
| | - Paolo Prosposito
- Department of Industrial Engineering and INSTM, University of Rome Tor Vergata, Via del Politecnico 1, 00133 Rome, Italy; (L.B.); (F.D.M.)
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15
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Sandoval-Herazo LC, Alvarado-Lassman A, López-Méndez MC, Martínez-Sibaja A, Aguilar-Lasserre AA, Zamora-Castro S, Marín-Muñiz JL. Effects of Ornamental Plant Density and Mineral/Plastic Media on the Removal of Domestic Waste water Pollutants by Home Wetlands Technology. Molecules 2020; 25:molecules25225273. [PMID: 33198195 PMCID: PMC7696903 DOI: 10.3390/molecules25225273] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 10/09/2020] [Accepted: 11/06/2020] [Indexed: 11/16/2022] Open
Abstract
Wastewater treatment (WWT) is a priority around the world; conventional treatments are not widely used in rural areas owing to the high operating and maintenance costs. In Mexico, for instance, only 40% of wastewater is treated. One sustainable option for WWT is through the use of constructed wetlands (CWs) technology, which may remove pollutants using cells filled with porous material and vegetation that works as a natural filter. Knowing the optimal material and density of plants used per square meter in CWs would allow improving their WWT effect. In this study, the effect of material media (plastic/mineral) and plant density on the removal of organic/inorganic pollutants was evaluated. Low (three plants), medium (six plants) and high (nine plants) densities were compared in a surface area of 0.3 m2 of ornamental plants (Alpinia purpurata, Canna hybrids and Hedychium coronarium) used in polycultures at the mesocosm level of household wetlands, planted on the two different substrates. Regarding the removal of contaminants, no significant differences were found between substrates (p ≥ 0.05), indicating the use of plastic residues (reusable) is an economical option compared to typical mineral materials. However, differences (p = 0.001) in removal of pollutants were found between different plant densities. For both substrates, the high density planted CWs were able to remove COD in a range of 86–90%, PO4-P 22–33%, NH4-N in 84–90%, NO3-N 25–28% and NO2-N 38–42%. At medium density, removals of 79–81%, 26–32, 80–82%, 24–26%, and 39–41%, were observed, whereas in CWs with low density, the detected removals were 65–68%, 20–26%, 79–80%, 24–26% and 31–40%, respectively. These results revealed that higher COD and ammonia were removed at high plant density than at medium or low densities. Other pollutants were removed similarly in all plant densities (22–42%), indicating the necessity of hybrid CWs to increase the elimination of PO4-P, NO3-N and NO2-N. Moreover, high density favored 10 to 20% more the removal of pollutants than other plant densities. In addition, in cells with high density of plants and smaller planting distance, the development of new plant shoots was limited. Thus, it is suggested that the appropriate distance for this type of polyculture plants should be from 40 to 50 cm in expansion to real-scale systems in order to take advantage of the harvesting of species in these and allow species of greater foliage, favoring its growth and new shoots with the appropriate distance to compensate, in the short time, the removal of nutrients.
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Affiliation(s)
- Luis Carlos Sandoval-Herazo
- División de Estudios de Posgrados e Investigación, Tecnológico Nacional de México/Instituto Tecnológico de Orizaba, Oriente 9, Emiliano Zapata Sur, C.P. Orizaba 94320, Veracruz, Mexico; (L.C.S.-H.); (A.A.-L.); (A.M.-S.); (A.A.A.-L.)
- División de Estudios Posgrado e Investigación, Tecnológico Nacional de México/Instituto Tecnológico Superior de Misantla, Misantla, Veracruz, C.P. Misantla 93821, Veracruz, Mexico;
| | - Alejandro Alvarado-Lassman
- División de Estudios de Posgrados e Investigación, Tecnológico Nacional de México/Instituto Tecnológico de Orizaba, Oriente 9, Emiliano Zapata Sur, C.P. Orizaba 94320, Veracruz, Mexico; (L.C.S.-H.); (A.A.-L.); (A.M.-S.); (A.A.A.-L.)
| | - María Cristina López-Méndez
- División de Estudios Posgrado e Investigación, Tecnológico Nacional de México/Instituto Tecnológico Superior de Misantla, Misantla, Veracruz, C.P. Misantla 93821, Veracruz, Mexico;
| | - Albino Martínez-Sibaja
- División de Estudios de Posgrados e Investigación, Tecnológico Nacional de México/Instituto Tecnológico de Orizaba, Oriente 9, Emiliano Zapata Sur, C.P. Orizaba 94320, Veracruz, Mexico; (L.C.S.-H.); (A.A.-L.); (A.M.-S.); (A.A.A.-L.)
| | - Alberto A. Aguilar-Lasserre
- División de Estudios de Posgrados e Investigación, Tecnológico Nacional de México/Instituto Tecnológico de Orizaba, Oriente 9, Emiliano Zapata Sur, C.P. Orizaba 94320, Veracruz, Mexico; (L.C.S.-H.); (A.A.-L.); (A.M.-S.); (A.A.A.-L.)
| | - Sergio Zamora-Castro
- Faculty of Engineering, Construction and Habitat, Universidad Veracruzana Bv. Adolfo Ruíz Cortines 455, Costa Verde, C.P. Boca del Rio 94294, Veracruz, Mexico;
| | - José Luis Marín-Muñiz
- Sustainable Regional Development Academy, El Colegio de Veracruz, Xalapa 91000, Veracruz, Mexico
- Correspondence:
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Ibrahim I, Belessiotis GV, Arfanis MK, Athanasekou C, Philippopoulos AI, Mitsopoulou CA, Romanos GE, Falaras P. Surfactant Effects on the Synthesis of Redox Bifunctional V 2O 5 Photocatalysts. Materials (Basel) 2020; 13:E4665. [PMID: 33092031 PMCID: PMC7590200 DOI: 10.3390/ma13204665] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 10/06/2020] [Accepted: 10/14/2020] [Indexed: 11/16/2022]
Abstract
Novel V2O5 bifunctional photocatalysts were prepared following a wet chemical process with the addition of anionic or non-ionic surfactants into the precursor solution and further heating under reflux. Detailed characterization and investigation of the relevant light-matter interactions proved that surfactants addition had a strong impact on the morphology, while also affecting the crystallinity, the optoelectronic properties, and the surface chemistry of the novel photocatalysts. The most efficient photocatalyst (T80) was based on tween 80, a surface-active agent employed for the first time in the synthesis of vanadium oxide materials. T80 presented crystalline nature without structural defects, which are usually centers of e- - h+ recombination. This material also exhibited small crystal size, high porosity, and short migration paths for the charge carriers, enabling their effective separation during photocatalysis. Under UV light illumination, T80 was capable to reduce hexavalent chromium to trivalent up to 70% and showed high yields in degrading methylene blue azo-dye and tetracycline antibiotic water pollutants. This remarkably high bifunctional performance defines T80 as a promising and capable photocatalytic material for both advanced oxidation and reduction processes (AOPs-ARPs).
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Affiliation(s)
- Islam Ibrahim
- Institute of Nanoscience and Nanotechnology, National Centre for Scientific Research (NCSR) “Demokritos”, 15341 Athens, Greece; (I.I.); (G.V.B.); (M.K.A.); (C.A.); (G.E.R.)
- Department of Chemistry, Zografou, National and Kapodistrian University of Athens, 15784 Athens, Greece; (A.I.P.); (C.A.M.)
| | - George V. Belessiotis
- Institute of Nanoscience and Nanotechnology, National Centre for Scientific Research (NCSR) “Demokritos”, 15341 Athens, Greece; (I.I.); (G.V.B.); (M.K.A.); (C.A.); (G.E.R.)
| | - Michalis K. Arfanis
- Institute of Nanoscience and Nanotechnology, National Centre for Scientific Research (NCSR) “Demokritos”, 15341 Athens, Greece; (I.I.); (G.V.B.); (M.K.A.); (C.A.); (G.E.R.)
| | - Chrysoula Athanasekou
- Institute of Nanoscience and Nanotechnology, National Centre for Scientific Research (NCSR) “Demokritos”, 15341 Athens, Greece; (I.I.); (G.V.B.); (M.K.A.); (C.A.); (G.E.R.)
| | - Athanassios I. Philippopoulos
- Department of Chemistry, Zografou, National and Kapodistrian University of Athens, 15784 Athens, Greece; (A.I.P.); (C.A.M.)
| | - Christiana A. Mitsopoulou
- Department of Chemistry, Zografou, National and Kapodistrian University of Athens, 15784 Athens, Greece; (A.I.P.); (C.A.M.)
| | - George Em. Romanos
- Institute of Nanoscience and Nanotechnology, National Centre for Scientific Research (NCSR) “Demokritos”, 15341 Athens, Greece; (I.I.); (G.V.B.); (M.K.A.); (C.A.); (G.E.R.)
| | - Polycarpos Falaras
- Institute of Nanoscience and Nanotechnology, National Centre for Scientific Research (NCSR) “Demokritos”, 15341 Athens, Greece; (I.I.); (G.V.B.); (M.K.A.); (C.A.); (G.E.R.)
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17
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Carreres-Prieto D, García JT, Cerdán-Cartagena F, Suardiaz-Muro J. Performing Calibration of Transmittance by Single RGB-LED within the Visible Spectrum. Sensors (Basel) 2020; 20:E3492. [PMID: 32575743 DOI: 10.3390/s20123492] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 06/02/2020] [Accepted: 06/17/2020] [Indexed: 12/04/2022]
Abstract
Spectrophotometry has proven to be an effective non-invasive technique for the characterization of the pollution load of sewer systems, enabling compliance with new environmental protection regulations. This type of equipment has costs and an energy consumption which make it difficult to place it inside a sewer network for real-time and massive monitoring. These shortcomings are mainly due to the use of incandescent lamps to generate the working spectrum as they often require the use of optical elements, such as diffraction gratings, to work. The search for viable alternatives to incandescent lamps is key to the development of portable equipment that is cheaper and with a lower consumption that can be used in different points of the sewer network. This research work achieved the following results in terms of the measured samples: First, the development a calibration procedure that enables the use of RGB-LED technology as a viable alternative to incandescent lamps, within the range of 510 to 645 nm, with high accuracy. Secondly, demonstration of a simple method to model the transmittance value of a specific wavelength without the need for optical elements, achieving a cost-effective equipment. Thirdly, it provides a simple method to obtain the transmittance based on the combination of RGB colors. Finally its viability is demonstrated for the spectral analysis of wastewater.
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18
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Arques-Orobon FJ, Prieto-Castrillo F, Nuñez N, Gonzalez-Posadas V. Processing Fluorescence Spectra for Pollutants Detection Systems in Inland Waters. Sensors (Basel) 2020; 20:s20113102. [PMID: 32486331 PMCID: PMC7308969 DOI: 10.3390/s20113102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 05/25/2020] [Accepted: 05/28/2020] [Indexed: 06/11/2023]
Abstract
Development of contaminant detection systems in various natural and industrial environments has been favored in recent years thanks to the evolution of processors and sensors. Our group works specifically on contaminant detection systems in inland waters: immediate and continuous detection is a fundamental requirement in this type of sensing. Regarding the sensors, the proposed system is based on fluorescence, since it offers a method in which there is no contact with water, which means less wear on the components and a great saving in cleaning and maintenance. On the other hand, the spectrum processing is of great importance, since it is used both in the generation of a library of fluorescence spectra taken in the laboratory and in the continuous analysis of the samples and in the comparison algorithm for identification. The validity of the system is based on the last process that is carried out in a very short time. This article describes a system to process spectra in a more accelerated way.
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Affiliation(s)
- F. Jose Arques-Orobon
- Escuela Técnica superior de Ingeniería y Sistemas de Telecomunicación, Universidad Politécnica de Madrid, 28031 Madrid, Spain; (N.N.); (V.G.-P.)
| | - Francisco Prieto-Castrillo
- Complex Systems Group, Universidad Politécnica de Madrid, 28040 Madrid, Spain;
- Media Laboratory, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Neftali Nuñez
- Escuela Técnica superior de Ingeniería y Sistemas de Telecomunicación, Universidad Politécnica de Madrid, 28031 Madrid, Spain; (N.N.); (V.G.-P.)
- Instituto de Energía Solar, Universidad Politécnica de Madrid, 28040 Madrid, Spain
| | - Vicente Gonzalez-Posadas
- Escuela Técnica superior de Ingeniería y Sistemas de Telecomunicación, Universidad Politécnica de Madrid, 28031 Madrid, Spain; (N.N.); (V.G.-P.)
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19
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Carreres-Prieto D, García JT, Cerdán-Cartagena F, Suardiaz-Muro J. Spectroscopy Transmittance by LED Calibration. Sensors (Basel) 2019; 19:E2951. [PMID: 31277445 DOI: 10.3390/s19132951] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Revised: 06/25/2019] [Accepted: 07/02/2019] [Indexed: 11/17/2022]
Abstract
Local administrations demand real-time and continuous pollution monitoring in sewer networks. Spectroscopy is a non-destructive technique that can be used to continuously monitor quality in sewers. Covering a wide range of wavelengths can be useful for improving pollution characterization in wastewater. Cost-effective and in-sewer spectrophotometers would contribute to accomplishing discharge requirements. Nevertheless, most available spectrometers are based on incandescent lamps, which makes it unfeasible to place them in a sewerage network for real-time monitoring. This research work shows an innovative calibration procedure that allows (Light-Emitting Diode) LED technology to be used as a replacement for traditional incandescent lamps in the development of spectrophotometry equipment. This involves firstly obtaining transmittance values similar to those provided by incandescent lamps, without using any optical components. Secondly, this calibration process enables an increase in the range of wavelengths available (working range) through a better use of the LED’s spectral width, resulting in a significant reduction in the number of LEDs required. Thirdly, this method allows important reductions in costs, dimensions and consumptions to be achieved, making its implementation in a wide variety of environments possible.
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Abstract
The adaptability of the taste system in fish has led to a large variety in taste bud morphology, abundance and distribution, as well as in taste physiology characteristics in closely related species with different modes of life and feeding ecology. However, the modifications evoked in the sense of taste, or gustation, particularly during ontogeny when fishes are subject to different environmental variables, remain poorly studied. This review paper focusses on current knowledge to show how plastic and resistant the taste system in fishes is to various external factors, linked to other sensory inputs and shifts in physiological state of individuals. Ambient water temperature is fundamental to many aspects of fish biology and taste preferences are stable to many substances, however, the taste-cell turnover rate strongly depends on water temperature. Taste preferences are stable within water salinity, which gives rise to the possibility that the taste system in anadromous and catadromous fishes will only change minimally after their migration to a new environment. Food-taste selectivity is linked to fish diet and to individual feeding experience as well as the motivation to feed evoked by attractive (water extracts of food) and repellent (alarm pheromone) odours. In contrast, starvation leads to loss of aversion to many deterrent substances, which explains the consumption by starving fishes of new objects, previously refused or just occasionally consumed. Food hardness can significantly modify the final feeding decision to swallow or to reject a grasped and highly palatable food item. Heavy metals, detergents, aromatic hydrocarbons and other water contaminants have the strongest and quickest negative effects on structure and function of taste system in fish and depress taste perception and ability of fishes to respond adequately to taste stimuli after short exposures. Owing to phenotypic plasticity, the taste system can proliferate and partially restore the ability of fishes to respond to food odour after a complete loss of olfaction. In general, the taste system, especially its functionality, is regarded as stable over the life of a fish despite any alteration in their environment and such resistance is vital for maintaining physiological homeostasis.
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Affiliation(s)
- Alexander O Kasumyan
- Department of Ichthyology, Faculty of Biology, Lomonosov Moscow State University, Moscow, Russia
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21
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Pinheiro PC, Fateixa S, Nogueira HIS, Trindade T. Magnetite-Supported Gold Nanostars for the Uptake and SERS Detection of Tetracycline. Nanomaterials (Basel) 2018; 9:E31. [PMID: 30591645 DOI: 10.3390/nano9010031] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Revised: 12/20/2018] [Accepted: 12/21/2018] [Indexed: 01/17/2023]
Abstract
Magnetite nanoparticles (MNPs) decorated with gold nanostars (AuNSs) have been prepared by using a seed growth method without the addition of surfactants or colloidal stabilizers. The hybrid nanomaterials were investigated as adsorbents for the uptake of tetracycline (TC) from aqueous solutions and subsequent detection using surface-enhanced Raman scattering (SERS). Several parameters were investigated in order to optimize the performance of these hybrid platforms on the uptake and SERS detection of TC, including variable pH values and the effect of contact time on the removal of TC. The spatial distribution of TC and AuNS on the hybrid composites was accomplished by coupling SERS analysis with Raman imaging studies, allowing also for the determination of the detection limit for TC when dissolved in ultrapure water (10 nM) and in more complex aqueous matrices (1 μM). Attempts were also made to investigate the adsorption modes of the TC molecules at the surface of the metal NPs by taking into account the enhancement of the Raman bands in these different matrices.
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22
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Lvova L, Caroleo F, Garau A, Lippolis V, Giorgi L, Fusi V, Zaccheroni N, Lombardo M, Prodi L, Di Natale C, Paolesse R. A Fluorescent Sensor Array Based on Heteroatomic Macrocyclic Fluorophores for the Detection of Polluting Species in Natural Water Samples. Front Chem 2018; 6:258. [PMID: 30003078 PMCID: PMC6032370 DOI: 10.3389/fchem.2018.00258] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2018] [Accepted: 06/08/2018] [Indexed: 12/18/2022] Open
Abstract
The development of a novel all-solid-state optical sensor array based on heteroatomic macrocyclic fluorophores (diaza-crown ether, metallocorrole and pyridinophans) for the photographic analysis of liquid media, is presented. The sensitivity of the new optical system toward a number of different species (cations: Li+, K+, Na+, NH4+, Mg2+, Ca2+, Co2+, Cu2+, Zn2+, Cd2+, Pb2+ and anions: NO2-, NO3-, Cl−, Br−, HCO3-) was evaluated both in single selective sensor mode and in multisensory arrangement. The satisfactory PLS1 regression models between sensor array optical response and analyte concentration were obtained for Cd2+, Cu2+, Zn2+, and NO2- ions in all the range of tested concentrations. Among these species the highest attention was focused onto detection of cadmium and nitrite ions, for which the detection limits, DL, estimated by 3σ method were found 0.0013 mg/L and 0.21 mg/L respectively, and these values are lower than the corresponding WHO guideline values of 0.003 mg/L (Cd2+) and 2 mg/L (NO2-). The suitability of the developed sensors implemented with familiar devices for signal acquisition (Light Emitting Diode, LED, as light source and a digital camera as a signal detector), and chemometric methods for data treatment to perform fast and low-cost monitoring of species under interest, in real samples of environmental importance, is demonstrated.
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Affiliation(s)
- Larisa Lvova
- Department of Chemical Science and Technologies, University "Tor Vergata", Rome, Italy
| | - Fabrizio Caroleo
- Department of Chemical Science and Technologies, University "Tor Vergata", Rome, Italy
| | - Alessandra Garau
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, Monserrato, Italy
| | - Vito Lippolis
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, Monserrato, Italy
| | - Luca Giorgi
- Department of Pure and Applied Sciences, Università degli Studi di Urbino, Urbino, Italy
| | - Vieri Fusi
- Department of Pure and Applied Sciences, Università degli Studi di Urbino, Urbino, Italy
| | - Nelsi Zaccheroni
- Dipartimento di Chimica "G. Ciamician" Università degli Studi di Bologna, Bologna, Italy
| | - Marco Lombardo
- Dipartimento di Chimica "G. Ciamician" Università degli Studi di Bologna, Bologna, Italy
| | - Luca Prodi
- Dipartimento di Chimica "G. Ciamician" Università degli Studi di Bologna, Bologna, Italy
| | - Corrado Di Natale
- Department of Electronic Engineering, University "Tor Vergata", Rome, Italy
| | - Roberto Paolesse
- Department of Chemical Science and Technologies, University "Tor Vergata", Rome, Italy
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Boulé LA, Chapman TJ, Hillman SE, Kassotis CD, O’Dell C, Robert J, Georas SN, Nagel SC, Lawrence BP. Developmental Exposure to a Mixture of 23 Chemicals Associated With Unconventional Oil and Gas Operations Alters the Immune System of Mice. Toxicol Sci 2018; 163:639-654. [PMID: 29718478 PMCID: PMC5974794 DOI: 10.1093/toxsci/kfy066] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Chemicals used in unconventional oil and gas (UOG) operations have the potential to cause adverse biological effects, but this has not been thoroughly evaluated. A notable knowledge gap is their impact on development and function of the immune system. Herein, we report an investigation of whether developmental exposure to a mixture of chemicals associated with UOG operations affects the development and function of the immune system. We used a previously characterized mixture of 23 chemicals associated with UOG, and which was demonstrated to affect reproductive and developmental endpoints in mice. C57Bl/6 mice were maintained throughout pregnancy and during lactation on water containing two concentrations of this 23-chemical mixture, and the immune system of male and female adult offspring was assessed. We comprehensively examined the cellularity of primary and secondary immune organs, and used three different disease models to probe potential immune effects: house dust mite-induced allergic airway disease, influenza A virus infection, and experimental autoimmune encephalomyelitis (EAE). In all three disease models, developmental exposure altered frequencies of certain T cell sub-populations in female, but not male, offspring. Additionally, in the EAE model disease onset occurred earlier and was more severe in females. Our findings indicate that developmental exposure to this mixture had persistent immunological effects that differed by sex, and exacerbated responses in an experimental model of autoimmune encephalitis. These observations suggest that developmental exposure to complex mixtures of water contaminants, such as those derived from UOG operations, could contribute to immune dysregulation and disease later in life.
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Affiliation(s)
| | - Timothy J Chapman
- Department of Medicine, University of Rochester School of Medicine and Dentistry, Rochester, NY 14842
| | - Sara E Hillman
- Department of Medicine, University of Rochester School of Medicine and Dentistry, Rochester, NY 14842
| | - Christopher D Kassotis
- Department of Medicine, University of Rochester School of Medicine and Dentistry, Rochester, NY 14842
- Department of Obstetrics, Gynecology and Women’s Health, School of Medicine, University of Missouri, Columbia, MO 65212
| | | | - Jacques Robert
- Department of Environmental Medicine
- Department of Microbiology and Immunology, University of Rochester School of Medicine and Dentistry, Rochester, New York
| | - Steve N Georas
- Department of Environmental Medicine
- Department of Medicine, University of Rochester School of Medicine and Dentistry, Rochester, NY 14842
- Department of Microbiology and Immunology, University of Rochester School of Medicine and Dentistry, Rochester, New York
| | - Susan C Nagel
- Department of Obstetrics, Gynecology and Women’s Health, School of Medicine, University of Missouri, Columbia, MO 65212
| | - B Paige Lawrence
- Department of Environmental Medicine
- Department of Microbiology and Immunology, University of Rochester School of Medicine and Dentistry, Rochester, New York
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24
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Wang Z, Wu A, Colombi Ciacchi L, Wei G. Recent Advances in Nanoporous Membranes for Water Purification. Nanomaterials (Basel) 2018; 8:E65. [PMID: 29370128 PMCID: PMC5853697 DOI: 10.3390/nano8020065] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 01/18/2018] [Accepted: 01/23/2018] [Indexed: 01/14/2023]
Abstract
Nanoporous materials exhibit wide applications in the fields of electrocatalysis, nanodevice fabrication, energy, and environmental science, as well as analytical science. In this review, we present a summary of recent studies on nanoporous membranes for water purification application. The types and fabrication strategies of various nanoporous membranes are first introduced, and then the fabricated nanoporous membranes for removing various water pollutants, such as salt, metallic ions, anions, nanoparticles, organic chemicals, and biological substrates, are demonstrated and discussed. This work will be valuable for readers to understand the design and fabrication of various nanoporous membranes, and their potential purification mechanisms towards different water pollutants. In addition, it will be helpful for developing new nanoporous materials for quick, economic, and high-performance water purification.
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Affiliation(s)
- Zhuqing Wang
- AnHui Province Key Laboratory of Optoelectronic and Magnetism Functional Materials, Anqing Normal University, Anqing 246011, China.
- Hybrid Materials Interfaces Group, Faculty of Production Engineering and Center for Environmental Research and Sustainable technology (UFT), University of Bremen, D-28359 Bremen, Germany.
| | - Aiguo Wu
- CAS Key Laboratory of Magnetic Materials and Devices, Key Laboratory of Additive Manufacturing Materials of Zhejiang Province, Division of Functional Materials and Nanodevices, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China.
| | - Lucio Colombi Ciacchi
- Hybrid Materials Interfaces Group, Faculty of Production Engineering and Center for Environmental Research and Sustainable technology (UFT), University of Bremen, D-28359 Bremen, Germany.
- MAPEX Center for Materials and Processes, University of Bremen, Am Fallturm 1, D-28359 Bremen, Germany.
| | - Gang Wei
- Hybrid Materials Interfaces Group, Faculty of Production Engineering and Center for Environmental Research and Sustainable technology (UFT), University of Bremen, D-28359 Bremen, Germany.
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25
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Hamner S, Broadaway SC, Berg E, Stettner S, Pyle BH, Big Man N, Old Elk J, Eggers MJ, Doyle J, Kindness L, Good Luck B, Ford TE, Camper AC. Detection and source tracking of Escherichia coli, harboring intimin and Shiga toxin genes, isolated from the Little Bighorn River, Montana. Int J Environ Health Res 2014; 24:341-362. [PMID: 24044742 DOI: 10.1080/09603123.2013.835030] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The Little Bighorn River flows through the Crow Indian Reservation in Montana. In 2008, Escherichia coli concentrations as high as 7179 MPN/100 ml were detected in the river at the Crow Agency Water Treatment Plant intake site. During 2008, 2009, and 2012, 10 different serotypes of E. coli, including O157:H7, harboring both intimin and Shiga toxin genes were isolated from a popular swim site of the Little Bighorn River in Crow Agency. As part of a microbial source tracking study, E. coli strains were isolated from river samples as well as from manure collected from a large cattle feeding operation in the upper Little Bighorn River watershed; 23% of 167 isolates of E. coli obtained from the manure tested positive for the intimin gene. Among these manure isolates, 19 were identified as O156:H8, matching the serotype of an isolate collected from a river sampling site close to the cattle feeding area.
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Affiliation(s)
- Steve Hamner
- a Department of Microbiology , Montana State University , Bozeman , MT , USA
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26
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Lokuge KM, Smith W, Caldwell B, Dear K, Milton AH. The effect of arsenic mitigation interventions on disease burden in Bangladesh. Environ Health Perspect 2004; 112:1172-7. [PMID: 15289162 PMCID: PMC1247477 DOI: 10.1289/ehp.6866] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2003] [Accepted: 06/17/2004] [Indexed: 05/02/2023]
Abstract
Many interventions have been advocated to mitigate the impact of arsenic contamination of drinking water in Bangladesh. However, there are few data on the true magnitude of arsenic-related disease in Bangladesh nationally. There has also been little consideration given to possible adverse effects of such interventions, in particular, diarrheal disease. The purpose of this study was to estimate and compare the likely impacts of arsenic mitigation interventions on both arsenic-related disease and water-borne infectious disease. We found that arsenic-related disease currently results in 9,136 deaths per year and 174,174 disability-adjusted life years (DALYs; undiscounted) lost per year in those exposed to arsenic concentrations > 50 microg/L. This constitutes 0.3% of the total disease burden in Bangladesh in terms of undiscounted DALYs. We found intervention to be of overall benefit in reducing disease burden in most scenarios examined, but the concomitant increase in water-related infectious disease significantly reduced the potential benefits gained from intervention. A minimum reduction in arsenic-related DALYs of 77% was necessary before intervention achieved any reduction in net disease burden. This is assuming that interventions were provided to those exposed to > 50 microg/L and would concomitantly result in a 20% increase in water-related infectious disease in those without access to adequate sanitation. Intervention appears to be justified for those populations exposed to high levels of arsenic, but it must be based on exposure levels and on the effectiveness of interventions not only in reducing arsenic but in minimizing risk of water-related infections. Key words: arsenic/adverse effects, Bangladesh, burden of disease, diarrhea, risk assessment, water pollutants, water supply.
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Affiliation(s)
- Kamalini M Lokuge
- National Centre for Epidemiology and Population Health, Australian National University, Building 62, Mills Road, Acton, Canberra, Australian Capital Territory 0200, Australia.
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