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Olias LG, Di Lorenzo M. Microbial fuel cells for in-field water quality monitoring. RSC Adv 2021; 11:16307-16317. [PMID: 35479166 PMCID: PMC9031575 DOI: 10.1039/d1ra01138c] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Accepted: 04/23/2021] [Indexed: 12/13/2022] Open
Abstract
The need for water security pushes for the development of sensing technologies that allow online and real-time assessments and are capable of autonomous and stable long-term operation in the field. In this context, Microbial Fuel Cell (MFC) based biosensors have shown great potential due to cost-effectiveness, simplicity of operation, robustness and the possibility of self-powered applications. This review focuses on the progress of the technology in real scenarios and in-field applications and discusses the technological bottlenecks that must be overcome for its success. An overview of the most relevant findings and challenges of MFC sensors for practical implementation is provided. First, performance indicators for in-field applications, which may diverge from lab-based only studies, are defined. Progress on MFC designs for off-grid monitoring of water quality is then presented with a focus on solutions that enhance robustness and long-term stability. Finally, calibration methods and detection algorithms for applications in real scenarios are discussed.
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Affiliation(s)
- Lola Gonzalez Olias
- Centre for Biosensors, Bioelectronics and Biodevices (C3Bio) and Department of Chemical Engineering, University of Bath Bath BA2 7AY UK
- Water Innovation Research Centre (WIRC), University of Bath Bath BA2 7AY UK
| | - Mirella Di Lorenzo
- Centre for Biosensors, Bioelectronics and Biodevices (C3Bio) and Department of Chemical Engineering, University of Bath Bath BA2 7AY UK
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52
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Monitoring microbial growth on a microfluidic lab-on-chip with electrochemical impedance spectroscopic technique. Biomed Microdevices 2021; 23:26. [PMID: 33885989 DOI: 10.1007/s10544-021-00564-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/12/2021] [Indexed: 12/17/2022]
Abstract
A continuous rise in the wastes from industrial effluents, bio-waste, and pharmaceuticals has deteriorated surface water and drinking water sources. Standard laboratory tests of total coliform are time-consuming and logistically inefficient for field data generation. Better and portable sensing technologies are needed. This paper reports an electrical impedance spectroscopic technique incorporated in a micro-fluidic chip with interdigitated microelectrodes to monitor the growth of microbial cells. Lag, log, and stationary phases of Escherichia coli cell growth with an integrated electrode are successfully detected, for samples of reverse osmosis water, standard treated tap water, and recycled water respectively. The results indicate that reverse osmosis water has a higher probability of contamination with bacterial pathogens compared to the other two types of water samples when subjected to the same amount of added nutrients. The statistical analysis shows a possible single detection range with higher-order regression, and repeat use of a single chip with the electrode was found to be within an acceptable limit. The interdigitated electrodes exposed to in-situ cell growth conditions and repeated electrical measurements have shown a promise for possible periodic or continuous monitoring. The paper further identifies several complimentary analysis methodologies that are robust towards phase noise in the measured impedance and are suited particularly for early-stage detection of bacterial contamination. The cell adhesion tendencies over the microelectrode due to the electric field need to be further analyzed.
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53
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Yang J, Holbach A, Stewardson MJ, Wilhelms A, Qin Y, Zheng B, Zou H, Qin B, Zhu G, Moldaenke C, Norra S. Simulating chlorophyll-a fluorescence changing rate and phycocyanin fluorescence by using a multi-sensor system in Lake Taihu, China. CHEMOSPHERE 2021; 264:128482. [PMID: 33038735 DOI: 10.1016/j.chemosphere.2020.128482] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 09/23/2020] [Accepted: 09/25/2020] [Indexed: 05/08/2023]
Abstract
Algal pollution in water sources has posed a serious problem. Estimating algal concentration in advance saves time for drinking water plants to take measures and helps us to understand causal chains of algal dynamics. This paper explores the possibility of building a short-term algal early warning model with online monitoring systems. In this study, we collected high-frequency data for water quality and weather conditions in shallow and eutrophic Lake Taihu by an in situ multi-sensor system (BIOLIFT) combined with a weather station. Extracted chlorophyll-a from water samples and chlorophyll-a fluorescence differentiated according to different algal classeses verified that chlorophyll-a fluorescence continuously measured by BIOLIFT only represent chlorophyll-a of green algae and diatoms. Stepwise linear regression was used to simulate the chlorophyll-a fluorescence changing rate of green algae and diatoms together (ΔChla-f%) and phycocyanin fluorescence concentration (blue-green algae) on the water surface layer (CyanoS). The results show that nutrients (total N, NO3-N, NH4-N, total P) were not necessary parameters for short-term algal models. ΔChla-f % is greatly influenced by the seasons, so seasonal partition of data before modeling is highly recommended. CyanoSmax and ΔChla-f% were simulated by only using multi-sensor and meteorological data (R2 = 0.73; 0.75). All the independent variables (wave, water temperature, relative humidity, depth, cloud cover) used in the model were measured online and predictable. Wave height is the most important independent variable in the shallow lake. This paper offers a new approach to simulate and predict the algal dynamics, which also can be applied in other surface water.
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Affiliation(s)
- Jingwei Yang
- Institute of Applied Geosciences, Working Group Environmental Mineralogy and Environmental System Analysis (ENMINSA), Karlsruhe Institute of Technology, Kaiserstraße 12, 76131, Karlsruhe, Germany.
| | - Andreas Holbach
- Institute of Applied Geosciences, Working Group Environmental Mineralogy and Environmental System Analysis (ENMINSA), Karlsruhe Institute of Technology, Kaiserstraße 12, 76131, Karlsruhe, Germany; Department of Bioscience, Aarhus University, Frederiksborgvej 399, 4000, Roskilde, Denmark
| | - Michael J Stewardson
- Department of Infrastructure Engineering, Melbourne School of Engineering, The University of Melbourne, 3010, Victoria, Australia
| | - Andre Wilhelms
- Institute of Applied Geosciences, Working Group Environmental Mineralogy and Environmental System Analysis (ENMINSA), Karlsruhe Institute of Technology, Kaiserstraße 12, 76131, Karlsruhe, Germany
| | - Yanwen Qin
- Chinese Research Academy of Environmental Sciences, Dayangfang 8 Anwai Beiyuan, Beijing, 100012, China
| | - Binghui Zheng
- Chinese Research Academy of Environmental Sciences, Dayangfang 8 Anwai Beiyuan, Beijing, 100012, China
| | - Hua Zou
- School of Environmental and Civil Engineering, Jiangnan University, Wuxi, 214122, China
| | - Boqiang Qin
- Nanjing Institute of Geography & Limnology, Chinese Academy of Sciences, 73 East Beijing Road, 210008, Nanjing, China
| | - Guangwei Zhu
- Nanjing Institute of Geography & Limnology, Chinese Academy of Sciences, 73 East Beijing Road, 210008, Nanjing, China
| | | | - Stefan Norra
- Institute of Applied Geosciences, Working Group Environmental Mineralogy and Environmental System Analysis (ENMINSA), Karlsruhe Institute of Technology, Kaiserstraße 12, 76131, Karlsruhe, Germany
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54
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Nanomaterial-sensors for herbicides detection using electrochemical techniques and prospect applications. Trends Analyt Chem 2021. [DOI: 10.1016/j.trac.2020.116178] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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55
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Molecularly imprinted polymer-based electrochemical sensors for environmental analysis. Biosens Bioelectron 2020; 172:112719. [PMID: 33166805 DOI: 10.1016/j.bios.2020.112719] [Citation(s) in RCA: 96] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 10/07/2020] [Accepted: 10/10/2020] [Indexed: 12/11/2022]
Abstract
The ever-increasing presence of contaminants in environmental waters is an alarming issue, not only because of their harmful effects in the environment but also because of their risk to human health. Pharmaceuticals and pesticides, among other compounds of daily use, such as personal care products or plasticisers, are being released into water bodies. This release mainly occurs through wastewater since the treatments applied in many wastewater treatment plants are not able to completely remove these substances. Therefore, the analysis of these contaminants is essential but this is difficult due to the great variety of contaminating substances. Facing this analytical challenge, electrochemical sensing based on molecularly imprinted polymers (MIPs) has become an interesting field for environmental monitoring. Benefiting from their superior chemical and physical stability, low-cost production, high selectivity and rapid response, MIPs combined with miniaturized electrochemical transducers offer the possibility to detect target analytes in-situ. In most reports, the construction of these sensors include nanomaterials to improve their analytical characteristics, especially their sensitivity. Moreover, these sensors have been successfully applied in real water samples without the need of laborious pre-treatment steps. This review provides a general overview of electrochemical MIP-based sensors that have been reported for the detection of pharmaceuticals, pesticides, heavy metals and other contaminants in water samples in the past decade. Special attention is given to the construction of the sensors, including different functional monomers, sensing platforms and materials employed to achieve the best sensitivity. Additionally, several parameters, such as the limit of detection, the linear concentration range and the type of water samples that were analysed are compiled.
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56
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Méndez-Barroso LA, Rivas-Márquez JA, Sosa-Tinoco I, Robles-Morúa A. Design and implementation of a low-cost multiparameter probe to evaluate the temporal variations of water quality conditions on an estuarine lagoon system. ENVIRONMENTAL MONITORING AND ASSESSMENT 2020; 192:710. [PMID: 33070261 DOI: 10.1007/s10661-020-08677-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 10/11/2020] [Indexed: 06/11/2023]
Abstract
The measurement of physicochemical variables to infer water quality is important since they help determine the distribution and abundance of aquatic organisms or pollution-related problems. Recently, the development of low-cost probes is a suitable alternative for continuous monitoring of these variables rather than the use of expensive instruments. In this work, a low-cost multiparameter probe (LCMP) has been developed to monitor water quality in an estuary located in Northwestern Mexico during a 3-month period. The LCMP integrates different sensors to an Arduino Nano microcontroller allowing to measure electrical conductivity, dissolved oxygen, pH, salinity, water temperature, and tide level. Data files were stored in a data logger system consisting of a secure digital (SD) card module and a real-time clock module coupled to the Arduino microcontroller. To ensure continuous operation, the system was powered by four 3.7 V, 10,000 mAh rechargeable LiPo batteries. All LCMP components were encapsulated in a polyvinyl chloride pipe. The results show that the LCMP had a good agreement with a commercial-grade multiparameter probe and was able to monitor continuously in hourly time steps. Finally, the LCMP proved to be an alternative for the establishment of coastal observatories, which has been deficient due to limited funding.
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Affiliation(s)
- L A Méndez-Barroso
- Departamento de Ciencias del Agua y Medio Ambiente, Instituto Tecnológico de Sonora, 5 de Febrero 818 sur, Ciudad Obregón, 85000, Sonora, Mexico.
- Laboratorio Nacional de Resiliencia Costera (LANRESC), Northwest headquarters, Ciudad Obregón, Mexico.
| | - J A Rivas-Márquez
- Departamento de Ciencias del Agua y Medio Ambiente, Instituto Tecnológico de Sonora, 5 de Febrero 818 sur, Ciudad Obregón, 85000, Sonora, Mexico
| | - I Sosa-Tinoco
- Laboratorio Nacional de Resiliencia Costera (LANRESC), Northwest headquarters, Ciudad Obregón, Mexico
- Departamento de Ingeniería Electrica y Electrónica, Instituto Tecnológico de Sonora, Ciudad Obregón, Mexico
| | - A Robles-Morúa
- Departamento de Ciencias del Agua y Medio Ambiente, Instituto Tecnológico de Sonora, 5 de Febrero 818 sur, Ciudad Obregón, 85000, Sonora, Mexico
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57
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Seo D, Shin S, Oh S, Lee M, Seo S. Rapid eco-toxicity analysis of hazardous and noxious substances (HNS) using morphological change detection in Dunaliella tertiolecta. ALGAL RES 2020. [DOI: 10.1016/j.algal.2020.102063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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58
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Monitoring Approaches for Faecal Indicator Bacteria in Water: Visioning a Remote Real-Time Sensor for E. coli and Enterococci. WATER 2020. [DOI: 10.3390/w12092591] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A comprehensive review was conducted to assess the current state of monitoring approaches for primary faecal indicator bacteria (FIB) E. coli and enterococci. Approaches were identified and examined in relation to their accuracy, ability to provide continuous data and instantaneous detection results, cost, environmental awareness regarding necessary reagent release or other pollution sources, in situ monitoring capability, and portability. Findings showed that several methods are precise and sophisticated but cannot be performed in real-time or remotely. This is mainly due to their laboratory testing requirements, such as lengthy sample preparations, the requirement for expensive reagents, and fluorescent tags. This study determined that portable fluorescence sensing, combined with advanced modelling methods to compensate readings for environmental interferences and false positives, can lay the foundations for a hybrid FIB sensing approach, allowing remote field deployment of a fleet of networked FIB sensors that can collect high-frequency data in near real-time. Such sensors will support proactive responses to sudden harmful faecal contamination events. A method is proposed to enable the development of the visioned FIB monitoring tool.
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59
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Li X, Chang H. Chip-based ion chromatography (chip-IC) with a sensitive five-electrode conductivity detector for the simultaneous detection of multiple ions in drinking water. MICROSYSTEMS & NANOENGINEERING 2020; 6:66. [PMID: 34567677 PMCID: PMC8433475 DOI: 10.1038/s41378-020-0175-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Revised: 03/25/2020] [Accepted: 04/26/2020] [Indexed: 06/13/2023]
Abstract
The emerging need for accurate, efficient, inexpensive, and multiparameter monitoring of water quality has led to interest in the miniaturization of benchtop chromatography systems. This paper reports a chip-based ion chromatography (chip-IC) system in which the microvalves, sample channel, packed column, and conductivity detector are all integrated on a polymethylmethacrylate (PMMA) chip. A laser-based bonding technique was developed to guarantee simultaneous robust sealing between the homogeneous and heterogeneous interfaces. A five-electrode-based conductivity detector was presented to improve the sensitivity for nonsuppressed anion detection. Common anions (F-, Cl-, NO3 -, and SO4 2-) were separated in less than 8 min, and a detection limit (LOD) of 0.6 mg L-1 was achieved for SO4 2-. Tap water was also analyzed using the proposed chip-IC system, and the relative deviations of the quantified concentration were less than 10% when compared with that a commercial IC system.
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Affiliation(s)
- Xiaoping Li
- Ministry of Education Key Laboratory of Micro/Nano Systems for Aerospace, School of Mechanical Engineering, Northwestern Polytechnical University, 710072 Xi’an, P. R. China
| | - Honglong Chang
- Ministry of Education Key Laboratory of Micro/Nano Systems for Aerospace, School of Mechanical Engineering, Northwestern Polytechnical University, 710072 Xi’an, P. R. China
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60
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Bria A, Cerro G, Ferdinandi M, Marrocco C, Molinara M. An IoT-ready solution for automated recognition of water contaminants. Pattern Recognit Lett 2020. [DOI: 10.1016/j.patrec.2020.04.019] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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61
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Miyah Y, Lahrichi A, Kachkoul R, El Mouhri G, Idrissi M, Iaich S, Zerrouq F. Multi-parametric filtration effect of the dyes mixture removal with the low cost materials. ARAB JOURNAL OF BASIC AND APPLIED SCIENCES 2020. [DOI: 10.1080/25765299.2020.1776008] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
Affiliation(s)
- Youssef Miyah
- Laboratory of Catalysis, Materials and Environment, School of Technology, University Sidi Mohammed Ben Abdellah, Fez, Morocco
| | - Anissa Lahrichi
- Laboratory of Biochemistry, Faculty of Medicine and Pharmacy, University Sidi Mohammed Ben Abdellah, Fez, Morocco
| | - Rabie Kachkoul
- Laboratory of Biochemistry, Faculty of Medicine and Pharmacy, University Sidi Mohammed Ben Abdellah, Fez, Morocco
| | - Ghita El Mouhri
- Laboratory of Biochemistry, Faculty of Medicine and Pharmacy, University Sidi Mohammed Ben Abdellah, Fez, Morocco
| | - Meryem Idrissi
- Laboratory of Catalysis, Materials and Environment, School of Technology, University Sidi Mohammed Ben Abdellah, Fez, Morocco
| | - Soulaiman Iaich
- Department of Chemistry, Materials Membranes and Processes of Separation Team, Faculty of Sciences, Moulay Ismail University, Meknes, Morocco
| | - Farid Zerrouq
- Laboratory of Catalysis, Materials and Environment, School of Technology, University Sidi Mohammed Ben Abdellah, Fez, Morocco
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62
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Multi-Faceted Environmental Analysis to Improve the Quality of Anthropogenic Water Reservoirs (Paprocany Reservoir Case Study). SENSORS 2020; 20:s20092626. [PMID: 32375421 PMCID: PMC7248983 DOI: 10.3390/s20092626] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 04/30/2020] [Accepted: 04/30/2020] [Indexed: 01/13/2023]
Abstract
Maintaining good condition of dam reservoirs in urban areas seems increasingly important due to their valuable role in mitigating the effects of global warming. The aim of this study is to analyze possibilities to improve water quality and ecosystem condition of the Paprocany dam reservoir (highly urbanized area of southern Poland) using current data of the water parameters, historical sources, and DPSIR (Driver–Pressure–State–Impact–Response) and 3D modeling concerning human activity and the global warming effects. In its history Paprocany reservoir overcame numerous hydrotechnical changes influencing its present functioning. Also, its current state is significantly influenced by saline water from the coal mine (5 g L−1 of chlorides and sulphates) and biogenic elements in recreational area (about 70 mg L−1 of chlorate and to 1.9 mg L−1 Kjeldahl nitrogen) and in sediments (222.66 Mg of Kjeldahl nitrogen, 45.65 Mg of P, and 1.03 Mg of assimilable phosphorus). Concluding, the best solutions to improve the Paprocany reservoir water quality comprise: increasing alimentation with water and shortening the water exchange time, restoration of the 19th century water treatment plant, and wetlands and reed bed area revitalization. The study also proved the applicability of mathematical models in planning of the actions and anticipating their efficiency.
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63
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Advanced core-shell EDTA-functionalized magnetite nanoparticles for rapid and efficient magnetic solid phase extraction of heavy metals from water samples prior to the multi-element determination by ICP-OES. Mikrochim Acta 2020; 187:289. [DOI: 10.1007/s00604-020-04231-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Accepted: 03/23/2020] [Indexed: 12/16/2022]
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64
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Lin B, Xu J, Yu C, Chen L, Lu M, Xie X. A multi-parameter in-situ water quality analyzer based on a portable document scanner and 3D printed self-sampling cells. Anal Chim Acta 2020; 1101:176-183. [PMID: 32029109 DOI: 10.1016/j.aca.2019.12.034] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2019] [Revised: 11/17/2019] [Accepted: 12/14/2019] [Indexed: 11/16/2022]
Abstract
This research introduced a new low-cost and multi-parameter analyzer for in-situ measurements of typical nutrients in water bodies. The analyzer consisted of color detection and chromogenic reaction modules. The self-sampling action of the 3D printed sampling/reaction cells was achieved with the cooperative application of rubber bands and dissolvable thread. The target analytes in the collected water sample reacted with the chromogenic reagents that were diffused from the pre-placed glass wool in the cell, producing color compounds. A portable document scanner was employed as a multi-parameter in-situ detector to record the image of the colored solutions in all five cells simultaneously. Based on the image, the corrected grayscale values were derived for target analyte quantitation. The relationships between grayscale values and concentrations of target analytes were established, and the temperature effects were studied. In addition, the practicability of the analyzer was demonstrated by in-situ experiments carried out in four different sites, including a creek, a river dock, a reservoir and a secondary settling tank in a wastewater treatment facility. The results indicated that the analyzer could be used for in-situ measuring of nutrients at μmol/L levels in the water. The nutrient concentrations obtained with the analyzer were comparable with those obtained with the standard methods. The presented analyzer provided new complementary ideas and methods for in-situ rapid measurement of nutrients and other target analytes in various water systems.
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Affiliation(s)
- Beichen Lin
- School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, 30332, Georgia, USA; Pen-Tung Sah Institute of Micro-Nano Science & Technology, Xiamen University, Xiamen, 361005, China
| | - Jin Xu
- State Key Laboratory of Marine Environmental Science, College of the Environment and Ecology, Xiamen University, Xiamen, 361005, China
| | - Cecilia Yu
- School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, 30332, Georgia, USA
| | - Luodan Chen
- State Key Laboratory of Marine Environmental Science, College of the Environment and Ecology, Xiamen University, Xiamen, 361005, China
| | - Miao Lu
- Pen-Tung Sah Institute of Micro-Nano Science & Technology, Xiamen University, Xiamen, 361005, China.
| | - Xing Xie
- School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, 30332, Georgia, USA.
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65
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Carminati M, Turolla A, Mezzera L, Di Mauro M, Tizzoni M, Pani G, Zanetto F, Foschi J, Antonelli M. A Self-Powered Wireless Water Quality Sensing Network Enabling Smart Monitoring of Biological and Chemical Stability in Supply Systems. SENSORS (BASEL, SWITZERLAND) 2020; 20:E1125. [PMID: 32092984 PMCID: PMC7070842 DOI: 10.3390/s20041125] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/19/2020] [Revised: 02/14/2020] [Accepted: 02/14/2020] [Indexed: 11/18/2022]
Abstract
A smart, safe, and efficient management of water is fundamental for both developed and developing countries. Several wireless sensor networks have been proposed for real-time monitoring of drinking water quantity and quality, both in the environment and in pipelines. However, surface fouling significantly affects the long-term reliability of pipes and sensors installed in-line. To address this relevant issue, we presented a multi-parameter sensing node embedding a miniaturized slime monitor able to estimate the micrometric thickness and type of slime. The measurement of thin deposits in pipes is descriptive of water biological and chemical stability and enables early warning functions, predictive maintenance, and more efficient management processes. After the description of the sensing node, the related electronics, and the data processing strategies, we presented the results of a two-month validation in the field of a three-node pilot network. Furthermore, self-powering by means of direct energy harvesting from the water flowing through the sensing node was also demonstrated. The robustness and low cost of this solution enable its upscaling to larger monitoring networks, paving the way to water monitoring with unprecedented spatio-temporal resolution.
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Affiliation(s)
- Marco Carminati
- Dipartimento di Elettronica, Informazione e Bioingegneria (DEIB), Politecnico di Milano, Milano 20133, Italy
| | - Andrea Turolla
- Department of Civil and Environmental Engineering (DICA)—Environmental Section, Politecnico di Milano, Milano 20133, Italy
| | - Lorenzo Mezzera
- Dipartimento di Elettronica, Informazione e Bioingegneria (DEIB), Politecnico di Milano, Milano 20133, Italy
| | - Michele Di Mauro
- Department of Civil and Environmental Engineering (DICA)—Environmental Section, Politecnico di Milano, Milano 20133, Italy
| | - Marco Tizzoni
- Department of Civil and Environmental Engineering (DICA)—Environmental Section, Politecnico di Milano, Milano 20133, Italy
| | - Gaia Pani
- Department of Civil and Environmental Engineering (DICA)—Environmental Section, Politecnico di Milano, Milano 20133, Italy
| | - Francesco Zanetto
- Dipartimento di Elettronica, Informazione e Bioingegneria (DEIB), Politecnico di Milano, Milano 20133, Italy
| | - Jacopo Foschi
- Department of Civil and Environmental Engineering (DICA)—Environmental Section, Politecnico di Milano, Milano 20133, Italy
| | - Manuela Antonelli
- Department of Civil and Environmental Engineering (DICA)—Environmental Section, Politecnico di Milano, Milano 20133, Italy
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66
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Gowri A, Kathiravan A. Fluorescent Chemosensor for Detection of Water Pollutants. SENSORS IN WATER POLLUTANTS MONITORING: ROLE OF MATERIAL 2020. [DOI: 10.1007/978-981-15-0671-0_9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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67
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Smartphone-based three-channel ratiometric fluorescent device and application in filed analysis of Hg2+, Fe3+ and Cu2+ in water samples. Microchem J 2020. [DOI: 10.1016/j.microc.2019.104423] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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68
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Tian Y, Liang T, Zhu P, Chen Y, Chen W, Du L, Wu C, Wang P. Label-Free Detection of E. coli O157:H7 DNA Using Light-Addressable Potentiometric Sensors with Highly Oriented ZnO Nanorod Arrays. SENSORS (BASEL, SWITZERLAND) 2019; 19:E5473. [PMID: 31842267 PMCID: PMC6960909 DOI: 10.3390/s19245473] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 12/07/2019] [Accepted: 12/09/2019] [Indexed: 12/26/2022]
Abstract
The detection of bacterial deoxyribonucleic acid (DNA) is of great significance in the quality control of food and water. In this study, a light-addressable potentiometric sensor (LAPS) deposited with highly oriented ZnO nanorod arrays (NRAs) was used for the label-free detection of single-stranded bacterial DNA (ssDNA). A functional, sensitive surface for the detection of Escherichia coli (E. coli) O157:H7 DNA was prepared by the covalent immobilization of the specific probe single-stranded DNA (ssDNA) on the LAPS surface. The functional surface was exposed to solutions containing the target E. coli ssDNA molecules, which allowed for the hybridization of the target ssDNA with the probe ssDNA. The surface charge changes induced by the hybridization of the probe ssDNA with the target E. coli ssDNA were monitored using LAPS measurements in a label-free manner. The results indicate that distinct signal changes can be registered and recorded to detect the target E. coli ssDNA. The lower detection limit of the target ssDNA corresponded to 1.0 × 102 colony forming units (CFUs)/mL of E. coli O157:H7 cells. All the results demonstrate that this DNA biosensor, based on the electrostatic detection of ssDNA, provides a novel approach for the sensitive and effective detection of bacterial DNA, which has promising prospects and potential applications in the quality control of food and water.
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Affiliation(s)
- Yulan Tian
- Institute of Medical Engineering, Department of Biophysics, School of Basic Medical Sciences, Xi’an Jiaotong University, Xi’an 710061, China; (Y.T.); (P.Z.); (Y.C.); (W.C.); (L.D.)
| | - Tao Liang
- Biosensor National Special Laboratory, Key Laboratory for Biomedical Engineering of Ministry of Education, Department of Biomedical Engineering, Zhejiang University, Hangzhou 310027, China;
| | - Ping Zhu
- Institute of Medical Engineering, Department of Biophysics, School of Basic Medical Sciences, Xi’an Jiaotong University, Xi’an 710061, China; (Y.T.); (P.Z.); (Y.C.); (W.C.); (L.D.)
| | - Yating Chen
- Institute of Medical Engineering, Department of Biophysics, School of Basic Medical Sciences, Xi’an Jiaotong University, Xi’an 710061, China; (Y.T.); (P.Z.); (Y.C.); (W.C.); (L.D.)
| | - Wei Chen
- Institute of Medical Engineering, Department of Biophysics, School of Basic Medical Sciences, Xi’an Jiaotong University, Xi’an 710061, China; (Y.T.); (P.Z.); (Y.C.); (W.C.); (L.D.)
| | - Liping Du
- Institute of Medical Engineering, Department of Biophysics, School of Basic Medical Sciences, Xi’an Jiaotong University, Xi’an 710061, China; (Y.T.); (P.Z.); (Y.C.); (W.C.); (L.D.)
| | - Chunsheng Wu
- Institute of Medical Engineering, Department of Biophysics, School of Basic Medical Sciences, Xi’an Jiaotong University, Xi’an 710061, China; (Y.T.); (P.Z.); (Y.C.); (W.C.); (L.D.)
| | - Ping Wang
- Biosensor National Special Laboratory, Key Laboratory for Biomedical Engineering of Ministry of Education, Department of Biomedical Engineering, Zhejiang University, Hangzhou 310027, China;
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Kumar S, Nehra M, Mehta J, Dilbaghi N, Marrazza G, Kaushik A. Point-of-Care Strategies for Detection of Waterborne Pathogens. SENSORS (BASEL, SWITZERLAND) 2019; 19:E4476. [PMID: 31623064 PMCID: PMC6833035 DOI: 10.3390/s19204476] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Revised: 10/11/2019] [Accepted: 10/13/2019] [Indexed: 12/31/2022]
Abstract
Waterborne diseases that originated due to pathogen microorganisms are emerging as a serious global health concern. Therefore, rapid, accurate, and specific detection of these microorganisms (i.e., bacteria, viruses, protozoa, and parasitic pathogens) in water resources has become a requirement of water quality assessment. Significant research has been conducted to develop rapid, efficient, scalable, and affordable sensing techniques to detect biological contaminants. State-of-the-art technology-assisted smart sensors have improved features (high sensitivity and very low detection limit) and can perform in a real-time manner. However, there is still a need to promote this area of research, keeping global aspects and demand in mind. Keeping this view, this article was designed carefully and critically to explore sensing technologies developed for the detection of biological contaminants. Advancements using paper-based assays, microfluidic platforms, and lateral flow devices are discussed in this report. The emerging recent trends, mainly point-of-care (POC) technologies, of water safety analysis are also discussed here, along with challenges and future prospective applications of these smart sensing technologies for water health diagnostics.
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Affiliation(s)
- Sandeep Kumar
- Department of Bio and Nano Technology, Guru Jambheshwar University of Science and Technology, Hisar-Haryana 125001, India.
| | - Monika Nehra
- Department of Bio and Nano Technology, Guru Jambheshwar University of Science and Technology, Hisar-Haryana 125001, India.
| | - Jyotsana Mehta
- Department of Bio and Nano Technology, Guru Jambheshwar University of Science and Technology, Hisar-Haryana 125001, India.
| | - Neeraj Dilbaghi
- Department of Bio and Nano Technology, Guru Jambheshwar University of Science and Technology, Hisar-Haryana 125001, India.
| | - Giovanna Marrazza
- Department of Chemistry "Ugo Schiff", University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino, Florence, Italy.
| | - Ajeet Kaushik
- Department of Natural Sciences, Florida Polytechnic University, Lakeland, FL 33805-8531, USA.
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70
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Gorgannezhad L, Stratton H, Nguyen NT. Microfluidic-Based Nucleic Acid Amplification Systems in Microbiology. MICROMACHINES 2019; 10:E408. [PMID: 31248141 PMCID: PMC6630468 DOI: 10.3390/mi10060408] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Revised: 06/14/2019] [Accepted: 06/17/2019] [Indexed: 02/07/2023]
Abstract
Rapid, sensitive, and selective bacterial detection is a hot topic, because the progress in this research area has had a broad range of applications. Novel and innovative strategies for detection and identification of bacterial nucleic acids are important for practical applications. Microfluidics is an emerging technology that only requires small amounts of liquid samples. Microfluidic devices allow for rapid advances in microbiology, enabling access to methods of amplifying nucleic acid molecules and overcoming difficulties faced by conventional. In this review, we summarize the recent progress in microfluidics-based polymerase chain reaction devices for the detection of nucleic acid biomarkers. The paper also discusses the recent development of isothermal nucleic acid amplification and droplet-based microfluidics devices. We discuss recent microfluidic techniques for sample preparation prior to the amplification process.
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Affiliation(s)
- Lena Gorgannezhad
- Queensland Micro- and Nanotechnology Centre, Nathan Campus, Griffith University, 170 Kessels Road, Brisbane QLD 4111, Australia.
- School of Environment and Science, Nathan Campus, Griffith University, 170 Kessels Road, Brisbane QLD 4111, Australia.
| | - Helen Stratton
- School of Environment and Science, Nathan Campus, Griffith University, 170 Kessels Road, Brisbane QLD 4111, Australia.
| | - Nam-Trung Nguyen
- Queensland Micro- and Nanotechnology Centre, Nathan Campus, Griffith University, 170 Kessels Road, Brisbane QLD 4111, Australia.
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71
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Hernandez-Ramirez AG, Martinez-Tavera E, Rodriguez-Espinosa PF, Mendoza-Pérez JA, Tabla-Hernandez J, Escobedo-Urías DC, Jonathan MP, Sujitha SB. Detection, provenance and associated environmental risks of water quality pollutants during anomaly events in River Atoyac, Central Mexico: A real-time monitoring approach. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 669:1019-1032. [PMID: 30970451 DOI: 10.1016/j.scitotenv.2019.03.138] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 03/09/2019] [Accepted: 03/09/2019] [Indexed: 06/09/2023]
Abstract
River Atoyac is considered to be one of the most polluted rivers in Mexico due to the discharges of untreated or partially treated wastewater from industrial and municipal activities. In order to improve the river water quality, it is obligatory to identify the possible contaminant sources for upholding a well-balanced ecosystem. Henceforth, the present study incorporates the application of a continuous real-time monitoring system to identify the provenance of pollutants of the river mainly from anomaly events. Four monitoring stations were installed all along the River Atoyac in the State of Puebla, Central Mexico. The real-time monitoring systems have an ability to measure various water quality parameters for every 15 minutes such as Temperature (T), pH, Conductivity (EC), turbidity (TURB), Dissolved Oxygen (DO), Oxidation Reduction Potential (ORP) and Spectral Absorption Coefficient (SAC). In total, eight water samples of anomaly events (i.e.) 2 per monitoring station during rainy (August-September) and winter seasons (November-December), that were detected using the parameters previously mentioned were procured and also analyzed in the laboratory for evaluating almost 54 physicochemical, inorganic and organic characteristics. Statistical results of factorial analysis explained that 30% of the total variance corresponded to textile effluents, 23% related to discharges produced by automobile and petrochemical industries, and 18% of the total variance defined the agricultural activities. Additionally, indices like Overall Index Pollution, Heavy Metal Evaluation Index, Screening Quick Reference Table and Molecular ratios of hydrocarbons for PAH sources was also calculated to estimate the grade of pollution and associated ecotoxicological risks. The present study also enlightens the fact that the assessed results will definitely provide valuable information for the management of river water quality by developing stringent public policies by governmental agencies for the sustainable conservation of Atoyac River.
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Affiliation(s)
- A G Hernandez-Ramirez
- Centro Interdisciplinario de Investigaciones y Estudios sobre Medio Ambiente y Desarrollo (CIIEMAD), Instituto Politécnico Nacional (IPN), Calle 30 de Junio de 1520, Barrio La Laguna Ticomán, Del. Gustavo A. Madero, C.P. 07340 Ciudad de México (CDMX), Mexico
| | - E Martinez-Tavera
- Universidad Popular Autónoma del Estado de Puebla (UPAEP), 17 sur no. 901 Barrio de Santiago, Puebla C.P. 72410, Mexico.
| | - P F Rodriguez-Espinosa
- Centro Interdisciplinario de Investigaciones y Estudios sobre Medio Ambiente y Desarrollo (CIIEMAD), Instituto Politécnico Nacional (IPN), Calle 30 de Junio de 1520, Barrio La Laguna Ticomán, Del. Gustavo A. Madero, C.P. 07340 Ciudad de México (CDMX), Mexico
| | - J A Mendoza-Pérez
- Escuela Nacional de Ciencias Biológicas (ENCB), Instituto Politécnico Nacional (IPN), Prolongación de Carpio y Plan de Ayala S/N, Miguel Hidalgo, Santo Tomas, C.P. 07738 Ciudad de México (CDMX), Mexico
| | - J Tabla-Hernandez
- Centro Interdisciplinario de Investigaciones y Estudios sobre Medio Ambiente y Desarrollo (CIIEMAD), Instituto Politécnico Nacional (IPN), Calle 30 de Junio de 1520, Barrio La Laguna Ticomán, Del. Gustavo A. Madero, C.P. 07340 Ciudad de México (CDMX), Mexico
| | - D C Escobedo-Urías
- Centro Interdisciplinario de Investigación para el Desarrollo Integral Regional, (CIIDIR-Sinaloa), Instituto Politécnico Nacional (IPN), Bulevar Juan de Dios Batiz Paredes #250 Colonia San Joachin. Guasave, C.P. 51101, Sinaloa, Mexico
| | - M P Jonathan
- Centro Interdisciplinario de Investigaciones y Estudios sobre Medio Ambiente y Desarrollo (CIIEMAD), Instituto Politécnico Nacional (IPN), Calle 30 de Junio de 1520, Barrio La Laguna Ticomán, Del. Gustavo A. Madero, C.P. 07340 Ciudad de México (CDMX), Mexico
| | - S B Sujitha
- Centro Interdisciplinario de Investigaciones y Estudios sobre Medio Ambiente y Desarrollo (CIIEMAD), Instituto Politécnico Nacional (IPN), Calle 30 de Junio de 1520, Barrio La Laguna Ticomán, Del. Gustavo A. Madero, C.P. 07340 Ciudad de México (CDMX), Mexico
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72
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Gomes RN, Bezerra-Neto JR, Sousa CP, Medeiros SL, Becker H, Soares JES, de Lima-Neto P, Correia AN. Understanding the dipyrone oxidation allying electrochemical and computational approaches. Anal Chim Acta 2019; 1051:49-57. [DOI: 10.1016/j.aca.2018.11.035] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Revised: 11/09/2018] [Accepted: 11/15/2018] [Indexed: 12/27/2022]
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73
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State-of-the-art in terahertz sensing for food and water security – A comprehensive review. Trends Food Sci Technol 2019. [DOI: 10.1016/j.tifs.2019.01.019] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Fernandes SPS, Romero V, Espiña B, Salonen LM. Tailoring Covalent Organic Frameworks To Capture Water Contaminants. Chemistry 2019; 25:6461-6473. [DOI: 10.1002/chem.201806025] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Indexed: 01/23/2023]
Affiliation(s)
- Soraia P. S. Fernandes
- International Iberian Nanotechnology Laboratory (INL) Av. Mestre José Veiga Braga 4715-330 Portugal
- Department of Chemistry, QOPNAUniversity of Aveiro 3810-193 Aveiro Portugal
| | - Vanesa Romero
- International Iberian Nanotechnology Laboratory (INL) Av. Mestre José Veiga Braga 4715-330 Portugal
- Department of Analytical and Food Chemistry, Faculty of ChemistryUniversity of Vigo As Lagoas-Marcosende 36310 Vigo Spain
| | - Begoña Espiña
- International Iberian Nanotechnology Laboratory (INL) Av. Mestre José Veiga Braga 4715-330 Portugal
| | - Laura M. Salonen
- International Iberian Nanotechnology Laboratory (INL) Av. Mestre José Veiga Braga 4715-330 Portugal
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75
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De Benedetto GE, Di Masi S, Pennetta A, Malitesta C. Response Surface Methodology for the Optimisation of Electrochemical Biosensors for Heavy Metals Detection. BIOSENSORS 2019; 9:E26. [PMID: 30781820 PMCID: PMC6468913 DOI: 10.3390/bios9010026] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 02/09/2019] [Accepted: 02/09/2019] [Indexed: 01/12/2023]
Abstract
Herein, we report the application of a chemometric tool for the optimisation of electrochemical biosensor performances. The experimental design was performed based on the responses of an amperometric biosensor developed for metal ions detection using the flow injection analysis. The electrode preparation and the working conditions were selected as experimental parameters, and thus, were modelled by a response surface methodology (RSM). In particular, enzyme concentration, flow rates, and number of cycles were reported as continuous factors, while the sensitivities of the biosensor (S, µA·mM-1) towards metals, such as Bi3+ and Al3+ were collected as responses and optimised by a central composite design (CCD). Bi3+ and Al3+ inhibition on the Pt/PPD/GOx biosensor response is for the first time reported. The optimal enzyme concentration, scan cycles and flow rate were found to be 50 U·mL-1, 30 and, 0.3 mL·min-1, respectively. Descriptive/predictive performances are discussed: the sensitivities of the optimised biosensor agreed with the experimental design prediction. The responses under the optimised conditions were also tested towards Ni2+ and Ag⁺ ions. The multivariate approach used in this work allowed us to obtain a wide working range for the biosensor, coupled with a high reproducibility of the response (RSD = 0.72%).
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Affiliation(s)
| | - Sabrina Di Masi
- Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali, Via per Monteroni 1, 73100 Lecce, Italy.
| | - Antonio Pennetta
- Dipartimento di Beni Culturali, Università del Salento, Via D. Birago 64, 73100 Lecce, Italy.
| | - Cosimino Malitesta
- Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali, Via per Monteroni 1, 73100 Lecce, Italy.
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76
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Shibata H, Hiruta Y, Citterio D. Fully inkjet-printed distance-based paper microfluidic devices for colorimetric calcium determination using ion-selective optodes. Analyst 2018; 144:1178-1186. [PMID: 30560965 DOI: 10.1039/c8an02146e] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Although the determination of calcium ions (Ca2+) is of high importance to monitor water hardness, currently available devices for on-site analysis suffer from a lack of user-friendliness and sensitivity. This work demonstrates fully inkjet-printed and low-cost microfluidic paper-based analytical devices (μPADs) for the simple naked-eye colorimetric determination of calcium ions (Ca2+) in drinking and tap water samples. The quantification of Ca2+ relies on visual readout of the length of a colour-changed detection channel modified with ionophore-doped ion-selective optode nanospheres (nano-optodes), eliminating the requirement of a scanner or a camera. All fabrication steps for deposition of assay reagents have been performed by means of a simple desktop thermal inkjet printer, which is expected to contribute to highly batch-to-batch reproducible device preparation. The detectable Ca2+ concentrations between 0.05 mmol L-1 and 5 mmol L-1 cover the range recommended by the International Organization for Standardization (0.05-2.5 mmol L-1) and the World Health Organization (WHO) guideline for Ca2+ quantification in drinking water (less than 5 mmol L-1). The lowest concentration of Ca2+ detectable by the naked eye was found to be 0.05 mmol L-1, which is below the value achieved with previously reported paper-based devices. μPAD quantified Ca2+ concentrations in tap or drinking waters were within 15% error of the results obtained with a classical complexometric titration. Hence, distance-based μPADs relying on nano-optodes are sensitive and reproducible tools for equipment-free on-site assaying of Ca2+ in real samples.
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Affiliation(s)
- Hiroyuki Shibata
- Department of Applied Chemistry, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan.
| | - Yuki Hiruta
- Department of Applied Chemistry, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan.
| | - Daniel Citterio
- Department of Applied Chemistry, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan.
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77
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Mejri A, Mars A, Elfil H, Hamzaoui AH. Graphene nanosheets modified with curcumin-decorated manganese dioxide for ultrasensitive potentiometric sensing of mercury(II), fluoride and cyanide. Mikrochim Acta 2018; 185:529. [PMID: 30402665 DOI: 10.1007/s00604-018-3064-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Accepted: 10/19/2018] [Indexed: 11/29/2022]
Abstract
A glassy carbon electrode (GCE) was modified by electropolymerization of curcumin on MnO2-Gr nanosheets to obtain a detection method for Hg(II) and for the anions fluoride and cyanide. The complexation by curcumin can be monitored by potentiometry. The results revealed a cathodic shift for the simultaneous detection of fluoride and cyanide and an anodic shift for the mercury(II) sensing, with peak potentials of -0.24, 0.12 and 0.82 V, respectively (vs. Ag/AgCl). The modified GCE is fairly selective, reproducible and repeatable. The detection limits are 19.2 nM for Hg(II), 17.2 nM for fluoride, and 28.3 nM for cyanide (LOD, S/N = 3). The method was successfully applied to the analysis of spiked samples of tap water, river water and petrochemical refinery wastewater. Graphical abstract Schematic of an electrochemical curcumin-MnO2-graphene nanosheet platform for the simultaneous assay of fluoride, cyanide and mercury(II) in the ppb concentration range in various natural and wastewater samples.
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Affiliation(s)
- Alma Mejri
- Valorization Laboratory of Useful Materials (LVMU), National Center of Material Science Research (CNRSM), Techno-park Borj Cedria, BP 273, 8020, Soliman, Tunisia
| | - Abdelmoneim Mars
- Valorization Laboratory of Useful Materials (LVMU), National Center of Material Science Research (CNRSM), Techno-park Borj Cedria, BP 273, 8020, Soliman, Tunisia. .,Laboratory of Natural Water Treatment (LABTEN), Water Researches and Technologies Center, Techno-park Borj Cedria, BP 273, 8020, Soliman, Tunisia.
| | - Hamza Elfil
- Laboratory of Natural Water Treatment (LABTEN), Water Researches and Technologies Center, Techno-park Borj Cedria, BP 273, 8020, Soliman, Tunisia
| | - Ahmed Hichem Hamzaoui
- Valorization Laboratory of Useful Materials (LVMU), National Center of Material Science Research (CNRSM), Techno-park Borj Cedria, BP 273, 8020, Soliman, Tunisia
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78
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Li Z, Askim JR, Suslick KS. The Optoelectronic Nose: Colorimetric and Fluorometric Sensor Arrays. Chem Rev 2018; 119:231-292. [DOI: 10.1021/acs.chemrev.8b00226] [Citation(s) in RCA: 476] [Impact Index Per Article: 79.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Zheng Li
- Department of Chemistry, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
| | - Jon R. Askim
- National Institute of Standards and Technology, Gaithersburg, Maryland 20899, United States
| | - Kenneth S. Suslick
- Department of Chemistry, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
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