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Mauduit M, Derrien M, Grenier M, Greff S, Molinari S, Chevaldonné P, Simmler C, Pérez T. In Situ Capture and Real-Time Enrichment of Marine Chemical Diversity. ACS CENTRAL SCIENCE 2023; 9:2084-2095. [PMID: 38033807 PMCID: PMC10683479 DOI: 10.1021/acscentsci.3c00661] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Indexed: 12/02/2023]
Abstract
Analyzing the chemical composition of seawater to understand its influence on ecosystem functions is a long-lasting challenge due to the inherent complexity and dynamic nature of marine environments. Describing the intricate chemistry of seawater requires optimal in situ sampling. Here is presented a novel underwater hand-held solid-phase extraction device, I-SMEL (In Situ Marine moleculELogger), which aims to concentrate diluted molecules from large volumes of seawater in a delimited zone targeting keystone benthic species. Marine benthic holobionts, such as sponges, can impact the chemical composition of their surroundings possibly through the production and release of their specialized metabolites, hence termed exometabolites (EMs). I-SMEL was deployed in a sponge-dominated Mediterranean ecosystem at a 15 m depth. Untargeted MS-based metabolomics was performed on enriched EM extracts and showed (1) the chemical diversity of enriched seawater metabolites and (2) reproducible recovery and enrichment of specialized sponge EMs such as aerothionin, demethylfurospongin-4, and longamide B methyl ester. These EMs constitute the chemical identity of each targeted species: Aplysina cavernicola, Spongia officinalis, and Agelas oroides, respectively. I-SMEL concentrated sponge EMs from 10 L of water in a 10 min sampling time. The present proof of concept with I-SMEL opens new research perspectives in marine chemical ecology and sets the stage for further sustainable efforts in natural product chemistry.
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Affiliation(s)
| | | | | | - Stéphane Greff
- IMBE, UMR CNRS
7263, IRD
237, Aix Marseille Université, Avignon
Université, Station Marine d’Endoume, Chemin de la batterie
des lions, 13007 Marseille, France
| | - Sacha Molinari
- IMBE, UMR CNRS
7263, IRD
237, Aix Marseille Université, Avignon
Université, Station Marine d’Endoume, Chemin de la batterie
des lions, 13007 Marseille, France
| | - Pierre Chevaldonné
- IMBE, UMR CNRS
7263, IRD
237, Aix Marseille Université, Avignon
Université, Station Marine d’Endoume, Chemin de la batterie
des lions, 13007 Marseille, France
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Böhnke S, Perner M. Approaches to Unmask Functioning of the Uncultured Microbial Majority From Extreme Habitats on the Seafloor. Front Microbiol 2022; 13:845562. [PMID: 35422772 PMCID: PMC9002263 DOI: 10.3389/fmicb.2022.845562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Accepted: 03/07/2022] [Indexed: 11/30/2022] Open
Abstract
Researchers have recognized the potential of enzymes and metabolic pathways hidden among the unseen majority of Earth’s microorganisms for decades now. Most of the microbes expected to colonize the seafloor and its subsurface are currently uncultured. Thus, their ability and contribution to element cycling remain enigmatic. Given that the seafloor covers ∼70% of our planet, this amounts to an uncalled potential of unrecognized metabolic properties and interconnections catalyzed by this microbial dark matter. Consequently, a tremendous black box awaits discovery of novel enzymes, catalytic abilities, and metabolic properties in one of the largest habitats on Earth. This mini review summarizes the current knowledge of cultivation-dependent and -independent techniques applied to seafloor habitats to unravel the role of the microbial dark matter. It highlights the great potential that combining microbiological and biogeochemical data from in situ experiments with molecular tools has for providing a holistic understanding of bio-geo-coupling in seafloor habitats and uses hydrothermal vent systems as a case example.
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Affiliation(s)
- Stefanie Böhnke
- Geomicrobiology, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
| | - Mirjam Perner
- Geomicrobiology, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
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3
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Toward Integrated Large-Scale Environmental Monitoring Using WSN/UAV/Crowdsensing: A Review of Applications, Signal Processing, and Future Perspectives. SENSORS 2022; 22:s22051824. [PMID: 35270970 PMCID: PMC8914857 DOI: 10.3390/s22051824] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 02/11/2022] [Accepted: 02/22/2022] [Indexed: 01/04/2023]
Abstract
Fighting Earth's degradation and safeguarding the environment are subjects of topical interest and sources of hot debate in today's society. According to the United Nations, there is a compelling need to take immediate actions worldwide and to implement large-scale monitoring policies aimed at counteracting the unprecedented levels of air, land, and water pollution. This requires going beyond the legacy technologies currently employed by government authorities and adopting more advanced systems that guarantee a continuous and pervasive monitoring of the environment in all its different aspects. In this paper, we take the research on integrated and large-scale environmental monitoring a step further by providing a comprehensive review that covers transversally all the main applications of wireless sensor networks (WSNs), unmanned aerial vehicles (UAVs), and crowdsensing monitoring technologies. By outlining the available solutions and current limitations, we identify in the cooperation among terrestrial (WSN/crowdsensing) and aerial (UAVs) sensing, coupled with the adoption of advanced signal processing techniques, the major pillars at the basis of future integrated (air, land, and water) and large-scale environmental monitoring systems. This review not only consolidates the progresses achieved in the field of environmental monitoring, but also sheds new lights on potential future research directions and synergies among different research areas.
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4
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Li M, Liu Q, Yang D, Guo J, Si G, Wu L, Zheng R. Underwater In Situ Dissolved Gas Detection Based on Multi-Reflection Raman Spectroscopy. SENSORS (BASEL, SWITZERLAND) 2021; 21:4831. [PMID: 34300571 PMCID: PMC8309903 DOI: 10.3390/s21144831] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 07/11/2021] [Accepted: 07/13/2021] [Indexed: 11/17/2022]
Abstract
The detection of dissolved gases in seawater plays an important role in oceanic observations and exploration. As a potential technique for oceanic applications, Raman spectroscopy has been successfully applied in hydrothermal vents and cold seep fluids, but it has not yet been used in common seawater due to the technique's lower sensitivity. In this work, we present a highly sensitive underwater in situ Raman spectroscopy system for dissolved gas detection in common seawater. Considering the difficulty of underwater degassing and in situ detection, we designed a near-concentric cavity to improve the sensitivity, with a miniature gas sample chamber featuring an inner volume of 1 mL placed inside the cavity to reach equilibrium in a short period of time. According to the 3σ criteria, the detection limits of this system for CO2, O2, and H2 were calculated to be 72.8, 44.0, and 27.7 ppm, respectively. Using a hollow fiber membrane degasser with a large surface area, the CO2 signal was found to be clearly visible in 30 s at a flow rate of 550 mL/min. Moreover, we deployed the system in Qingdao's offshore seawater, and the field test showed that this system is capable of successfully detecting in situ the multiple gases dissolved in the seawater simultaneously.
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Affiliation(s)
- Meng Li
- College of Information Science and Engineering, Ocean University of China, Qingdao 266100, China; (M.L.); (Q.L.); (G.S.); (L.W.); (R.Z.)
| | - Qingsheng Liu
- College of Information Science and Engineering, Ocean University of China, Qingdao 266100, China; (M.L.); (Q.L.); (G.S.); (L.W.); (R.Z.)
| | - Dewang Yang
- College of Ocean Science and Engineering, Shandong University of Science and Technology, Qingdao 266100, China;
| | - Jinjia Guo
- College of Information Science and Engineering, Ocean University of China, Qingdao 266100, China; (M.L.); (Q.L.); (G.S.); (L.W.); (R.Z.)
| | - Ganshang Si
- College of Information Science and Engineering, Ocean University of China, Qingdao 266100, China; (M.L.); (Q.L.); (G.S.); (L.W.); (R.Z.)
| | - Lulu Wu
- College of Information Science and Engineering, Ocean University of China, Qingdao 266100, China; (M.L.); (Q.L.); (G.S.); (L.W.); (R.Z.)
| | - Ronger Zheng
- College of Information Science and Engineering, Ocean University of China, Qingdao 266100, China; (M.L.); (Q.L.); (G.S.); (L.W.); (R.Z.)
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5
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Fukuba T, Fujii T. Lab-on-a-chip technology for in situ combined observations in oceanography. LAB ON A CHIP 2021; 21:55-74. [PMID: 33300537 DOI: 10.1039/d0lc00871k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The oceans sustain the global environment and diverse ecosystems through a variety of biogeochemical processes and their complex interactions. In order to understand the dynamism of the local or global marine environments, multimodal combined observations must be carried out in situ. On the other hand, instrumentation of in situ measurement techniques enabling biological and/or biochemical combined observations is challenging in aquatic environments, including the ocean, because biochemical flow analyses require a more complex configuration than physicochemical electrode sensors. Despite this technical hurdle, in situ analyzers have been developed to measure the concentrations of seawater contents such as nutrients, trace metals, and biological components. These technologies have been used for cutting-edge ocean observations to elucidate the biogeochemical properties of water mass with a high spatiotemporal resolution. In this context, the contribution of lab-on-a-chip (LoC) technology toward the miniaturization and functional integration of in situ analyzers has been gaining momentum. Due to their mountability, in situ LoC technologies provide ideal instrumentation for underwater analyzers, especially for miniaturized underwater observation platforms. Consequently, the appropriate combination of reliable LoC and underwater technologies is essential to realize practical in situ LoC analyzers suitable for underwater environments, including the deep sea. Moreover, the development of fundamental LoC technologies for underwater analyzers, which operate stably in extreme environments, should also contribute to in situ measurements for public or industrial purposes in harsh environments as well as the exploration of the extraterrestrial frontier.
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Affiliation(s)
- Tatsuhiro Fukuba
- Institute for Marine-Earth Exploration and Engineering, Japan Agency for Marine-Earth Science and Technology, Natsushima-cho 2-15, Yokosuka, Kanagawa 237-0061, Japan.
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Ye W, Guo J, Li N, Qi F, Cheng K, Zheng R. Depth Profiling Investigation of Seawater Using Combined Multi-Optical Spectrometry. APPLIED SPECTROSCOPY 2020; 74:563-570. [PMID: 32031011 DOI: 10.1177/0003702820906890] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Depth profiling investigation plays an important role in studying the dynamic processes of the ocean. In this paper, a newly developed hyphenated underwater system based on multi-optical spectrometry is introduced and used to measure seawater spectra at different depths with the aid of a remotely operated vehicle (ROV). The hyphenated system consists of two independent compact deep-sea spectral instruments, a deep ocean compact autonomous Raman spectrometer and a compact underwater laser-induced breakdown spectroscopy system for sea applications (LIBSea). The former was used to take both Raman scattering and fluorescence of seawater, and the LIBS signal could be recorded with the LIBSea. The first sea trial of the developed system was taken place in the Bismarck Sea, Papua New Guinea, in June 2015. Over 4000 multi-optical spectra had been captured up to the diving depth about 1800 m at maximum. The depth profiles of some ocean parameters were extracted from the captured joint Raman-fluorescence and LIBS spectra with a depth resolution of 1 m. The concentrations of SO42- and the water temperatures were measured using Raman spectra. The fluorescence intensities from both colored dissolved organic matter (CDOM) and chlorophyll were found to be varied in the euphotic zone. With LIBS spectra, the depth profiles of metallic elements were also obtained. The normalized intensity of atomic line Ca(I) extracted from LIBS spectra raised around the depth of 1600 m, similar to the depth profile of CDOM. This phenomenon might be caused by the nonbuoyant hydrothermal plumes. It is worth mentioning that this is the first time Raman and LIBS spectroscopy have been applied simultaneously to the deep-sea in situ investigations.
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Affiliation(s)
- Wangquan Ye
- College of Information Science and Engineering, Ocean University of China, Qingdao, China
| | - Jinjia Guo
- College of Information Science and Engineering, Ocean University of China, Qingdao, China
| | - Nan Li
- College of Information Science and Engineering, Ocean University of China, Qingdao, China
| | - Fujun Qi
- College of Information Science and Engineering, Ocean University of China, Qingdao, China
| | - Kai Cheng
- College of Information Science and Engineering, Ocean University of China, Qingdao, China
| | - Ronger Zheng
- College of Information Science and Engineering, Ocean University of China, Qingdao, China
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7
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Lace A, Ryan D, Bowkett M, Cleary J. Arsenic Monitoring in Water by Colorimetry Using an Optimized Leucomalachite Green Method. Molecules 2019; 24:E339. [PMID: 30669352 PMCID: PMC6359460 DOI: 10.3390/molecules24020339] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 01/11/2019] [Accepted: 01/16/2019] [Indexed: 11/30/2022] Open
Abstract
Arsenic contamination of drinking water is a global concern. Standard laboratory methods that are commonly used for arsenic detection in water, such as atomic absorption spectroscopy and mass spectroscopy, are not suitable for mass monitoring purposes. Autonomous microfluidic detection systems combined with a suitable colorimetric reagent could provide an alternative to standard methods. Moreover, microfluidic detection systems would enable rapid and cost efficient in situ monitoring of water sources without the requirement of laborious sampling. The aim of this study is to optimize a colorimetric method based on leucomalachite green dye for integration into a microfluidic detection system. The colorimetric method is based on the reaction of arsenic (III) with potassium iodate in acid medium to liberate iodine, which oxidizes leucomalachite green to malachite green. A rapid colour development was observed after the addition of the dye. Beer's law was obeyed in the range between 0.07⁻3 µg mL-1. The detection limit and quantitation limit were found to be 0.19 and 0.64 µg mL-1, respectively.
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Affiliation(s)
- Annija Lace
- EnviroCORE, Department of Science and Health, Institute of Technology Carlow, Kilkenny Road, R93 V960 Co. Carlow, Ireland.
| | - David Ryan
- EnviroCORE, Department of Science and Health, Institute of Technology Carlow, Kilkenny Road, R93 V960 Co. Carlow, Ireland.
| | - Mark Bowkett
- TE Laboratories Ltd. (TelLab), Loughmartin Business Park, Tullow, R93 N529 Co. Carlow, Ireland.
| | - John Cleary
- EnviroCORE, Department of Science and Health, Institute of Technology Carlow, Kilkenny Road, R93 V960 Co. Carlow, Ireland.
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8
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Briggs EM, Sandoval S, Erten A, Takeshita Y, Kummel AC, Martz TR. Solid State Sensor for Simultaneous Measurement of Total Alkalinity and pH of Seawater. ACS Sens 2017; 2:1302-1309. [PMID: 28805369 DOI: 10.1021/acssensors.7b00305] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A novel design is demonstrated for a solid state, reagent-less sensor capable of rapid and simultaneous measurement of pH and Total Alkalinity (AT) using ion sensitive field effect transistor (ISFET) technology to provide a simplified means of characterization of the aqueous carbon dioxide system through measurement of two "master variables": pH and AT. ISFET-based pH sensors that achieve 0.001 precision are widely used in various oceanographic applications. A modified ISFET is demonstrated to perform a nanoliter-scale acid-base titration of AT in under 40 s. This method of measuring AT, a Coulometric Diffusion Titration, involves electrolytic generation of titrant, H+, through the electrolysis of water on the surface of the chip via a microfabricated electrode eliminating the requirement of external reagents. Characterization has been performed in seawater as well as titrating individual components (i.e., OH-, HCO3-, CO32-, B(OH)4-, PO43-) of seawater AT. The seawater measurements are consistent with the design in reaching the benchmark goal of 0.5% precision in AT over the range of seawater AT of ∼2200-2500 μmol kg-1 which demonstrates great potential for autonomous sensing.
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Affiliation(s)
- Ellen M. Briggs
- Scripps Institution of Oceanography, ‡California Institute for Telecommunications
and Information Technology (Cal IT2), §Electrical and Computer Engineering Department, and ∥Materials Science
and Engineering, University of California San Diego, La Jolla, California 92093-0244, United States
| | - Sergio Sandoval
- Scripps Institution of Oceanography, ‡California Institute for Telecommunications
and Information Technology (Cal IT2), §Electrical and Computer Engineering Department, and ∥Materials Science
and Engineering, University of California San Diego, La Jolla, California 92093-0244, United States
| | - Ahmet Erten
- Scripps Institution of Oceanography, ‡California Institute for Telecommunications
and Information Technology (Cal IT2), §Electrical and Computer Engineering Department, and ∥Materials Science
and Engineering, University of California San Diego, La Jolla, California 92093-0244, United States
| | - Yuichiro Takeshita
- Scripps Institution of Oceanography, ‡California Institute for Telecommunications
and Information Technology (Cal IT2), §Electrical and Computer Engineering Department, and ∥Materials Science
and Engineering, University of California San Diego, La Jolla, California 92093-0244, United States
| | - Andrew C. Kummel
- Scripps Institution of Oceanography, ‡California Institute for Telecommunications
and Information Technology (Cal IT2), §Electrical and Computer Engineering Department, and ∥Materials Science
and Engineering, University of California San Diego, La Jolla, California 92093-0244, United States
| | - Todd R. Martz
- Scripps Institution of Oceanography, ‡California Institute for Telecommunications
and Information Technology (Cal IT2), §Electrical and Computer Engineering Department, and ∥Materials Science
and Engineering, University of California San Diego, La Jolla, California 92093-0244, United States
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9
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A portable bioelectronic sensing system (BESSY) for environmental deployment incorporating differential microbial sensing in miniaturized reactors. PLoS One 2017; 12:e0184994. [PMID: 28915277 PMCID: PMC5600388 DOI: 10.1371/journal.pone.0184994] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Accepted: 09/04/2017] [Indexed: 02/08/2023] Open
Abstract
Current technologies are lacking in the area of deployable, in situ monitoring of complex chemicals in environmental applications. Microorganisms metabolize various chemical compounds and can be engineered to be analyte-specific making them naturally suited for robust chemical sensing. However, current electrochemical microbial biosensors use large and expensive electrochemistry equipment not suitable for on-site, real-time environmental analysis. Here we demonstrate a miniaturized, autonomous bioelectronic sensing system (BESSY) suitable for deployment for instantaneous and continuous sensing applications. We developed a 2x2 cm footprint, low power, two-channel, three-electrode electrochemical potentiostat which wirelessly transmits data for on-site microbial sensing. Furthermore, we designed a new way of fabricating self-contained, submersible, miniaturized reactors (m-reactors) to encapsulate the bacteria, working, and counter electrodes. We have validated the BESSY’s ability to specifically detect a chemical amongst environmental perturbations using differential current measurements. This work paves the way for in situ microbial sensing outside of a controlled laboratory environment.
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10
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Crespo GA. Recent Advances in Ion-selective membrane electrodes for in situ environmental water analysis. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.05.159] [Citation(s) in RCA: 78] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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11
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Taran O. Electron Transfer between Electrically Conductive Minerals and Quinones. Front Chem 2017; 5:49. [PMID: 28752088 PMCID: PMC5508016 DOI: 10.3389/fchem.2017.00049] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Accepted: 06/21/2017] [Indexed: 01/04/2023] Open
Abstract
Long-distance electron transfer in marine environments couples physically separated redox half-reactions, impacting biogeochemical cycles of iron, sulfur and carbon. Bacterial bio-electrochemical systems that facilitate electron transfer via conductive filaments or across man-made electrodes are well-known, but the impact of abiotic currents across naturally occurring conductive and semiconductive minerals is poorly understood. In this paper I use cyclic voltammetry to explore electron transfer between electrodes made of common iron minerals (magnetite, hematite, pyrite, pyrrhotite, mackinawite, and greigite), and hydroquinones—a class of organic molecules found in carbon-rich sediments. Of all tested minerals, only pyrite and magnetite showed an increase in electric current in the presence of organic molecules, with pyrite showing excellent electrocatalytic performance. Pyrite electrodes performed better than commercially available glassy carbon electrodes and showed higher peak currents, lower overpotential values and a smaller separation between oxidation and reduction peaks for each tested quinone. Hydroquinone oxidation on pyrite surfaces was reversible, diffusion controlled, and stable over a large number of potential cycles. Given the ubiquity of both pyrite and quinones, abiotic electron transfer between minerals and organic molecules is likely widespread in Nature and may contribute to several different phenomena, including anaerobic respiration of a wide variety of microorganisms in temporally anoxic zones or in the proximity of hydrothermal vent chimneys, as well as quinone cycling and the propagation of anoxic zones in organic rich waters. Finally, interactions between pyrite and quinones make use of electrochemical gradients that have been suggested as an important source of energy for the origins of life on Earth. Ubiquinones and iron sulfide clusters are common redox cofactors found in electron transport chains across all domains of life and interactions between quinones and pyrite might have been an early analog of these ubiquitous systems.
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Affiliation(s)
- Olga Taran
- Department of Chemistry, Emory UniversityAtlanta, GA, United States
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12
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Schierenbeck TM, Smith MC. Path to Impact for Autonomous Field Deployable Chemical Sensors: A Case Study of in Situ Nitrite Sensors. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2017; 51:4755-4771. [PMID: 28332819 DOI: 10.1021/acs.est.6b06171] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Natural freshwater systems have been severely affected by excess loading of macronutrients (e.g., nitrogen and phosphorus) from fertilizers, fossil fuels, and human and livestock waste. In the USA, impacts to drinking water quality, biogeochemical cycles, and aquatic ecosystems are estimated to cost US$210 billion annually. Field-deployable nutrient sensors (FDS) offer potential to support research and resource management efforts by acquiring higher resolution data than are currently supported by expensive conventional sampling methods. Following nearly 40 years of research and development, FDS instruments are now starting to penetrate commercial markets. However, instrument uncertainty factors (high cost, reliability, accuracy, and precision) are key drivers impeding the uptake of FDS by the majority of users. Using nitrite sensors as a case study, we review the trends, opportunities, and challenges in producing and implementing FDS from a perspective of innovation and impact. We characterize the user community and consumer needs, identify trends in research approaches, tabulate state-of-the-art examples and specifications, and discuss data life cycle considerations. With further development of FDS through prototyping and testing in real-world applications, these tools can deliver information for protecting and restoring natural waters, enhancing process control for industrial operations and water treatment, and providing novel research insights.
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Affiliation(s)
- Tim M Schierenbeck
- School of Freshwater Sciences, University of Wisconsin-Milwaukee , 600 E. Greenfield Avenue, Milwaukee, Wisconsin 53204, United States
| | - Matthew C Smith
- School of Freshwater Sciences, University of Wisconsin-Milwaukee , 600 E. Greenfield Avenue, Milwaukee, Wisconsin 53204, United States
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13
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Weber AW, O’Neil GD, Kounaves SP. Solid Contact Ion-Selective Electrodes for in Situ Measurements at High Pressure. Anal Chem 2017; 89:4803-4807. [DOI: 10.1021/acs.analchem.7b00366] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Andrew W. Weber
- Department
of Chemistry, Tufts University, Medford, Massachusetts 02115, United States
| | - Glen D. O’Neil
- Department
of Chemistry and Biochemistry, Montclair State University, Montclair, New Jersey 07043, United States
| | - Samuel P. Kounaves
- Department
of Chemistry, Tufts University, Medford, Massachusetts 02115, United States
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14
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Environmental monitoring using autonomous vehicles: a survey of recent searching techniques. Curr Opin Biotechnol 2017; 45:76-84. [PMID: 28254670 DOI: 10.1016/j.copbio.2017.01.009] [Citation(s) in RCA: 93] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2016] [Revised: 12/22/2016] [Accepted: 01/20/2017] [Indexed: 11/23/2022]
Abstract
Autonomous vehicles are becoming an essential tool in a wide range of environmental applications that include ambient data acquisition, remote sensing, and mapping of the spatial extent of pollutant spills. Among these applications, pollution source localization has drawn increasing interest due to its scientific and commercial interest and the emergence of a new breed of robotic vehicles capable of operating in harsh environments without human supervision. The aim is to find the location of a region that is the source of a given substance of interest (e.g. a chemical pollutant at sea or a gas leakage in air) using a group of cooperative autonomous vehicles. Motivated by fast paced advances in this challenging area, this paper surveys recent advances in searching techniques that are at the core of environmental monitoring strategies using autonomous vehicles.
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15
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Bagshaw EA, Beaton A, Wadham JL, Mowlem M, Hawkings JR, Tranter M. Chemical sensors for in situ data collection in the cryosphere. Trends Analyt Chem 2016. [DOI: 10.1016/j.trac.2016.06.016] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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16
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Chen J, Ye W, Guo J, Luo Z, Li Y. Diurnal Variability in Chlorophyll-a, Carotenoids, CDOM and SO₄(2-) Intensity of Offshore Seawater Detected by an Underwater Fluorescence-Raman Spectral System. SENSORS 2016; 16:s16071082. [PMID: 27420071 PMCID: PMC4970128 DOI: 10.3390/s16071082] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Revised: 06/15/2016] [Accepted: 06/30/2016] [Indexed: 01/11/2023]
Abstract
A newly developed integrated fluorescence-Raman spectral system (λex = 532 nm) for detecting Chlorophyll-a (chl-a), Chromophoric Dissolved Organic Matter (CDOM), carotenoids and SO42− in situ was used to successfully investigate the diurnal variability of all above. Simultaneously using the integration of fluorescence spectroscopy and Raman spectroscopy techniques provided comprehensive marine information due to the complementarity between the different excitation mechanisms and different selection rules. The investigation took place in offshore seawater of the Yellow Sea (36°05′40′′ N, 120°31′32′′ E) in October 2014. To detect chl-a, CDOM, carotenoids and SO42−, the fluorescence-Raman spectral system was deployed. It was found that troughs of chl-a and CDOM fluorescence signal intensity were observed during high tides, while the signal intensity showed high values with larger fluctuations during ebb-tide. Chl-a and carotenoids were influenced by solar radiation within a day cycle by different detection techniques, as well as displaying similar and synchronous tendency. CDOM fluorescence cause interference to the measurement of SO42−. To avoid such interference, the backup Raman spectroscopy system with λex = 785 nm was employed to detect SO42− concentration on the following day. The results demonstrated that the fluorescence-Raman spectral system has great potential in detection of chl-a, carotenoids, CDOM and SO42− in the ocean.
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Affiliation(s)
- Jing Chen
- Optics and Optoelectronics Laboratory, Ocean University of China, Qingdao 266100, China.
| | - Wangquan Ye
- Optics and Optoelectronics Laboratory, Ocean University of China, Qingdao 266100, China.
| | - Jinjia Guo
- Optics and Optoelectronics Laboratory, Ocean University of China, Qingdao 266100, China.
| | - Zhao Luo
- Optics and Optoelectronics Laboratory, Ocean University of China, Qingdao 266100, China.
| | - Ying Li
- Optics and Optoelectronics Laboratory, Ocean University of China, Qingdao 266100, China.
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Abstract
Cross-shelf exchange dominates the pathways and rates by which nutrients, biota, and materials on the continental shelf are delivered and removed. This follows because cross-shelf gradients of most properties are usually far greater than those in the alongshore direction. The resulting transports are limited by Earth's rotation, which inhibits flow from crossing isobaths. Thus, cross-shelf flows are generally weak compared with alongshore flows, and this leads to interesting observational issues. Cross-shelf flows are enabled by turbulent mixing processes, nonlinear processes (such as momentum advection), and time dependence. Thus, there is a wide range of possible effects that can allow these critical transports, and different natural settings are often governed by different combinations of processes. This review discusses examples of representative transport mechanisms and explores possible observational and theoretical paths to future progress.
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Affiliation(s)
- K H Brink
- Department of Physical Oceanography, Woods Hole Oceanographic Institution, Woods Hole, Massachusetts 02543;
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18
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Yücel M, Beaton AD, Dengler M, Mowlem MC, Sohl F, Sommer S. Nitrate and Nitrite Variability at the Seafloor of an Oxygen Minimum Zone Revealed by a Novel Microfluidic In-Situ Chemical Sensor. PLoS One 2015; 10:e0132785. [PMID: 26161958 PMCID: PMC4498834 DOI: 10.1371/journal.pone.0132785] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2015] [Accepted: 06/19/2015] [Indexed: 11/19/2022] Open
Abstract
Microfluidics, or lab-on-a-chip (LOC) is a promising technology that allows the development of miniaturized chemical sensors. In contrast to the surging interest in biomedical sciences, the utilization of LOC sensors in aquatic sciences is still in infancy but a wider use of such sensors could mitigate the undersampling problem of ocean biogeochemical processes. Here we describe the first underwater test of a novel LOC sensor to obtain in situ calibrated time-series (up to 40 h) of nitrate+nitrite (ΣNOx) and nitrite on the seafloor of the Mauritanian oxygen minimum zone, offshore Western Africa. Initial tests showed that the sensor successfully reproduced water column (160 m) nutrient profiles. Lander deployments at 50, 100 and 170 m depth indicated that the biogeochemical variability was high over the Mauritanian shelf: The 50 m site had the lowest ΣNOx concentration, with 15.2 to 23.4 μM (median=18.3 μM); while at the 100 site ΣNOx varied between 21.0 and 30.1 μM over 40 hours (median = 25.1μM). The 170 m site had the highest median ΣNOx level (25.8 μM) with less variability (22.8 to 27.7 μM). At the 50 m site, nitrite concentration decreased fivefold from 1 to 0.2 μM in just 30 hours accompanied by decreasing oxygen and increasing nitrate concentrations. Taken together with the time series of oxygen, temperature, pressure and current velocities, we propose that the episodic intrusion of deeper waters via cross-shelf transport leads to intrusion of nitrate-rich, but oxygen-poor waters to shallower locations, with consequences for benthic nitrogen cycling. This first validation of an LOC sensor at elevated water depths revealed that when deployed for longer periods and as a part of a sensor network, LOC technology has the potential to contribute to the understanding of the benthic biogeochemical dynamics.
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Affiliation(s)
- Mustafa Yücel
- GEOMAR Helmholtz Centre for Ocean Research, Kiel, Germany
- Middle East Technical University (METU), Institute of Marine Sciences, Erdemli, Mersin, Turkey
- * E-mail:
| | - Alexander D. Beaton
- National Oceanography Centre Southampton, Ocean Technology and Engineering Group, Southampton, United Kingdom
| | - Marcus Dengler
- GEOMAR Helmholtz Centre for Ocean Research, Kiel, Germany
| | - Matthew C. Mowlem
- National Oceanography Centre Southampton, Ocean Technology and Engineering Group, Southampton, United Kingdom
| | - Frank Sohl
- DLR German Aerospace Center, Institute for Planetary Science, Berlin, Germany
| | - Stefan Sommer
- GEOMAR Helmholtz Centre for Ocean Research, Kiel, Germany
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19
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Milani A, Statham PJ, Mowlem MC, Connelly DP. Development and application of a microfluidic in-situ analyzer for dissolved Fe and Mn in natural waters. Talanta 2015; 136:15-22. [DOI: 10.1016/j.talanta.2014.12.045] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Revised: 12/25/2014] [Accepted: 12/27/2014] [Indexed: 11/28/2022]
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20
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Wang ZA, Sonnichsen FN, Bradley AM, Hoering KA, Lanagan TM, Chu SN, Hammar TR, Camilli R. In situ sensor technology for simultaneous spectrophotometric measurements of seawater total dissolved inorganic carbon and pH. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2015; 49:4441-4449. [PMID: 25720851 DOI: 10.1021/es504893n] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A new, in situ sensing system, Channelized Optical System (CHANOS), was recently developed to make high-resolution, simultaneous measurements of total dissolved inorganic carbon (DIC) and pH in seawater. Measurements made by this single, compact sensor can fully characterize the marine carbonate system. The system has a modular design to accommodate two independent, but similar measurement channels for DIC and pH. Both are based on spectrophotometric detection of hydrogen ion concentrations. The pH channel uses a flow-through, sample-indicator mixing design to achieve near instantaneous measurements. The DIC channel adapts a recently developed spectrophotometric method to achieve flow-through CO2 equilibration between an acidified sample and an indicator solution with a response time of only ∼ 90 s. During laboratory and in situ testing, CHANOS achieved a precision of ±0.0010 and ± 2.5 μmol kg(-1) for pH and DIC, respectively. In situ comparison tests indicated that the accuracies of the pH and DIC channels over a three-week time-series deployment were ± 0.0024 and ± 4.1 μmol kg(-1), respectively. This study demonstrates that CHANOS can make in situ, climatology-quality measurements by measuring two desirable CO2 parameters, and is capable of resolving the CO2 system in dynamic marine environments.
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Affiliation(s)
- Zhaohui Aleck Wang
- †Department of Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution, McLean 203, MS #8, 266 Woods Hole Road, Woods Hole, Massachusetts 02543, United States
| | - Frederick N Sonnichsen
- ‡Department of Applied Ocean Physics and Engineering, Woods Hole Oceanographic Institution, 266 Woods Hole Road, Woods Hole, Massachusetts 02543, United States
| | - Albert M Bradley
- ‡Department of Applied Ocean Physics and Engineering, Woods Hole Oceanographic Institution, 266 Woods Hole Road, Woods Hole, Massachusetts 02543, United States
| | - Katherine A Hoering
- †Department of Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution, McLean 203, MS #8, 266 Woods Hole Road, Woods Hole, Massachusetts 02543, United States
| | - Thomas M Lanagan
- ‡Department of Applied Ocean Physics and Engineering, Woods Hole Oceanographic Institution, 266 Woods Hole Road, Woods Hole, Massachusetts 02543, United States
| | - Sophie N Chu
- †Department of Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution, McLean 203, MS #8, 266 Woods Hole Road, Woods Hole, Massachusetts 02543, United States
| | - Terence R Hammar
- ‡Department of Applied Ocean Physics and Engineering, Woods Hole Oceanographic Institution, 266 Woods Hole Road, Woods Hole, Massachusetts 02543, United States
| | - Richard Camilli
- ‡Department of Applied Ocean Physics and Engineering, Woods Hole Oceanographic Institution, 266 Woods Hole Road, Woods Hole, Massachusetts 02543, United States
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21
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Takeshita Y, Martz TR, Johnson KS, Dickson AG. Characterization of an Ion Sensitive Field Effect Transistor and Chloride Ion Selective Electrodes for pH Measurements in Seawater. Anal Chem 2014; 86:11189-95. [DOI: 10.1021/ac502631z] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yuichiro Takeshita
- Scripps
Institution of Oceanography, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Todd R. Martz
- Scripps
Institution of Oceanography, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Kenneth S. Johnson
- Monterey Bay Aquarium
Research Institute, 7700 Sandholdt
Road, Moss Landing, California 95039, United States
| | - Andrew G. Dickson
- Scripps
Institution of Oceanography, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
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22
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Murphy K, Heery B, Sullivan T, Zhang D, Paludetti L, Lau KT, Diamond D, Costa E, O'Connor N, Regan F. A low-cost autonomous optical sensor for water quality monitoring. Talanta 2014; 132:520-7. [PMID: 25476339 DOI: 10.1016/j.talanta.2014.09.045] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2014] [Revised: 09/16/2014] [Accepted: 09/18/2014] [Indexed: 10/24/2022]
Abstract
A low-cost optical sensor for monitoring the aquatic environment is presented, with the construction and design described in detail. The autonomous optical sensor is devised to be environmentally robust, easily deployable and simple to operate. It consists of a multi-wavelength light source with two photodiode detectors capable of measuring the transmission and side-scattering of the light in the detector head. This enables the sensor to give qualitative data on the changes in the optical opacity of the water. Laboratory tests to confirm colour and turbidity-related responses are described and the results given. The autonomous sensor underwent field deployments in an estuarine environment, and the results presented here show the sensors capacity to detect changes in opacity and colour relating to potential pollution events. The application of this low-cost optical sensor is in the area of environmental pollution alerts to support a water monitoring programme, where multiple such sensors could be deployed as part of a network.
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Affiliation(s)
- Kevin Murphy
- Marine and Environmental Sensing Technology Hub (MESTECH), NCSR, Dublin City University (DCU), Glasnevin, Dublin 9, Ireland
| | - Brendan Heery
- Marine and Environmental Sensing Technology Hub (MESTECH), NCSR, Dublin City University (DCU), Glasnevin, Dublin 9, Ireland
| | - Timothy Sullivan
- Marine and Environmental Sensing Technology Hub (MESTECH), NCSR, Dublin City University (DCU), Glasnevin, Dublin 9, Ireland
| | - Dian Zhang
- Marine and Environmental Sensing Technology Hub (MESTECH), NCSR, Dublin City University (DCU), Glasnevin, Dublin 9, Ireland; CLARITY, Centre for Sensor Web Technologies, NCSR, Dublin City University (DCU), Glasnevin, Dublin 9, Ireland
| | - Lizandra Paludetti
- Marine and Environmental Sensing Technology Hub (MESTECH), NCSR, Dublin City University (DCU), Glasnevin, Dublin 9, Ireland; LAFAC Applied and Computational Physics Laboratory, University of São Paulo, Pirassununga, São Paulo 13635-900, Brazil
| | - King Tong Lau
- CLARITY, Centre for Sensor Web Technologies, NCSR, Dublin City University (DCU), Glasnevin, Dublin 9, Ireland
| | - Dermot Diamond
- CLARITY, Centre for Sensor Web Technologies, NCSR, Dublin City University (DCU), Glasnevin, Dublin 9, Ireland
| | - Ernane Costa
- LAFAC Applied and Computational Physics Laboratory, University of São Paulo, Pirassununga, São Paulo 13635-900, Brazil
| | - Noel O'Connor
- CLARITY, Centre for Sensor Web Technologies, NCSR, Dublin City University (DCU), Glasnevin, Dublin 9, Ireland
| | - Fiona Regan
- Marine and Environmental Sensing Technology Hub (MESTECH), NCSR, Dublin City University (DCU), Glasnevin, Dublin 9, Ireland.
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23
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Sinfield JV, Monwuba CK. Assessment and correction of turbidity effects on Raman observations of chemicals in aqueous solutions. APPLIED SPECTROSCOPY 2014; 68:1381-1392. [PMID: 25357083 DOI: 10.1366/13-07292] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Improvements in diode laser, fiber optic, and data acquisition technologies are enabling increased use of Raman spectroscopic techniques for both in lab and in situ water analysis. Aqueous media encountered in the natural environment often contain suspended solids that can interfere with spectroscopic measurements, yet removal of these solids, for example, via filtration, can have even greater adverse effects on the extent to which subsequent measurements are representative of actual field conditions. In this context, this study focuses on evaluation of turbidity effects on Raman spectroscopic measurements of two common environmental pollutants in aqueous solution: ammonium nitrate and trichloroethylene. The former is typically encountered in the runoff from agricultural operations and is a strong scatterer that has no significant influence on the Raman spectrum of water. The latter is a commonly encountered pollutant at contaminated sites associated with degreasing and cleaning operations and is a weak scatterer that has a significant influence on the Raman spectrum of water. Raman observations of each compound in aqueous solutions of varying turbidity created by doping samples with silica flour with grain sizes ranging from 1.6 to 5.0 μm were employed to develop relationships between observed Raman signal strength and turbidity level. Shared characteristics of these relationships were then employed to define generalized correction methods for the effect of turbidity on Raman observations of compounds in aqueous solution.
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24
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Herzog G, Moujahid W, Twomey K, Lyons C, Ogurtsov VI. On-chip electrochemical microsystems for measurements of copper and conductivity in artificial seawater. Talanta 2013; 116:26-32. [DOI: 10.1016/j.talanta.2013.04.057] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2012] [Revised: 04/17/2013] [Accepted: 04/24/2013] [Indexed: 10/26/2022]
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25
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Boulart C, Prien R, Chavagnac V, Dutasta JP. Sensing dissolved methane in aquatic environments: an experiment in the central baltic sea using surface plasmon resonance. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2013; 47:8582-8590. [PMID: 23815404 DOI: 10.1021/es4011916] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
A new sensor for in situ, real time methane (CH4) measurements in aqueous environments is based on the refractive index (RI) modulation of a sensitive film composed of a polydimethylsiloxane (PDMS) layer incorporating molecules of cryptophane-A. The RI varies according to the amount of CH4 bound to the cryptophane-A in the film and is determined using surface plasmon resonance (SPR). Tests of the sensor in the summer of 2012 reveal the expansive range of conditions of the Central Baltic Sea with CH4 concentrations varying from 5 nM up to a few hundred nanomolar. The sensor showed detection limits down to 3 nM, sensitivity of 6 to 7 × 10(-6) RIU/nM, and response times of 1 to 2 min. Best responses were obtained for concentrations up to 200 nM. Side effects (temperature, cross-sensitivity) are reviewed for future improvements to the sensor design. CH4 values are highest in the Landsort Deep up to 1.2 μM at 400 m depth and lowest in the Gotland Deep with 900 nM at 220 m depth. However, variable values in the upper layers indicate higher mixing rates due to currents and wind driven forces in the Gotland Basin compared with almost constant CH4 values in the Landsort Deep.
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Affiliation(s)
- Cédric Boulart
- Leibniz Institute for Baltic Sea Research , Warnemünde, Seestrasse 15, 18119 Rostock, Germany.
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26
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Wang ZA, Chu SN, Hoering KA. High-frequency spectrophotometric measurements of total dissolved inorganic carbon in seawater. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2013; 47:7840-7847. [PMID: 23710835 DOI: 10.1021/es400567k] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
A new spectrophotometric method was developed to achieve continuous measurements of total dissolved inorganic carbon (DIC) in seawater. It uses a countercurrent flow design and a highly CO2-permeable membrane (Teflon AF 2400) to achieve flow-through CO2 equilibration between an acidified sample and an indicator solution with a fast response time of ~22 s. This method improves the spatiotemporal resolution by more than 1 order of magnitude compared to the existing spectrophotometric method. The flow-through equilibration allows for continuous (~1 Hz) detection and real-time data smoothing. The method had a short-term precision of ± 2.0 μmol kg(-1) for a given flow-through sample. It achieved a field precision of ± 3.6 μmol kg(-1) and successfully captured high DIC variability down to minute scales. Measurements by the new method over the typical range of oceanic DIC showed good agreement with measurements made by an established method (mean differences -1.6 to 0.3 μmol kg(-1) with 1σ ± 6.0-6.7 μmol kg(-1)). This level of precision and accuracy is comparable to that of the existing spectrophotometric method. The characteristics of the new method make it particularly suitable for high-frequency, submerged measurements required for mobile observing platforms in the ocean. It can also be adapted for high-frequency, spectrophotometric measurements of seawater CO2 fugacity.
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Affiliation(s)
- Zhaohui Aleck Wang
- Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution , McLean 203, MS no. 8, 266 Woods Hole Road, Woods Hole, Massachusetts 02543, USA.
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27
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Kim YC, Cramer J, Battaglia T, Jordan JA, Banerji SN, Peng W, Kegel LL, Booksh KS. Investigation of in Situ Surface Plasmon Resonance Spectroscopy for Environmental Monitoring in and around Deep-Sea Hydrothermal Vents. ANAL LETT 2013. [DOI: 10.1080/00032719.2012.757701] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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28
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29
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Cleary J, Maher D, Diamond D. Development and Deployment of a Microfluidic Platform for Water Quality Monitoring. SMART SENSORS, MEASUREMENT AND INSTRUMENTATION 2013. [DOI: 10.1007/978-3-642-37006-9_6] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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30
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Stalker L, Noble R, Pejcic B, Leybourne M, Hortle A, Michael K, Dixon T, Basava-Reddi L. Feasibility of Monitoring Techniques for Substances Mobilised by CO2 Storage in Geological Formations. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/j.egypro.2012.06.039] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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31
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Lee JH, Wang Z, Lu Y. DNAzyme-Based Sensing for Metal Ions in Ocean Platform. SPRINGER PROTOCOLS HANDBOOKS 2012. [DOI: 10.1007/978-1-61779-915-0_5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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32
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Küpper FC, Feiters MC, Olofsson B, Kaiho T, Yanagida S, Zimmermann MB, Carpenter LJ, Luther GW, Lu Z, Jonsson M, Kloo L. Commemorating Two Centuries of Iodine Research: An Interdisciplinary Overview of Current Research. Angew Chem Int Ed Engl 2011; 50:11598-620. [DOI: 10.1002/anie.201100028] [Citation(s) in RCA: 241] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2011] [Indexed: 11/10/2022]
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33
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Küpper FC, Feiters MC, Olofsson B, Kaiho T, Yanagida S, Zimmermann MB, Carpenter LJ, Luther GW, Lu Z, Jonsson M, Kloo L. Zweihundert Jahre Iodforschung: ein interdisziplinärer Überblick über die derzeitige Forschung. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201100028] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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34
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Edwards KJ, Wheat CG, Sylvan JB. Under the sea: microbial life in volcanic oceanic crust. Nat Rev Microbiol 2011; 9:703-12. [DOI: 10.1038/nrmicro2647] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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35
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36
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Ogilvie IRG, Sieben VJ, Mowlem MC, Morgan H. Temporal Optimization of Microfluidic Colorimetric Sensors by Use of Multiplexed Stop-Flow Architecture. Anal Chem 2011; 83:4814-21. [DOI: 10.1021/ac200463y] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- I. R. G. Ogilvie
- Nanogroup, University of Southampton, Southampton SO17 1BJ, United Kingdom
| | - V. J. Sieben
- Nanogroup, University of Southampton, Southampton SO17 1BJ, United Kingdom
- National Oceanography Centre, University of Southampton, Southampton SO14 3ZH, United Kingdom
| | - M. C. Mowlem
- National Oceanography Centre, University of Southampton, Southampton SO14 3ZH, United Kingdom
| | - H. Morgan
- Nanogroup, University of Southampton, Southampton SO17 1BJ, United Kingdom
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37
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Bahi MM, Tsaloglou MN, Mowlem M, Morgan H. Electroporation and lysis of marine microalga Karenia brevis for RNA extraction and amplification. J R Soc Interface 2010; 8:601-8. [PMID: 21084344 DOI: 10.1098/rsif.2010.0445] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
We describe here a simple device for dielectrophoretic concentration of marine microalga Karenia brevis non-motile cells, followed by electric field-mediated lysis for RNA extraction. The lysate was purified using magnetic beads and pure RNA extracted. RNA quality was assessed off-chip by nucleic acid sequence-based amplification and the optimum conditions for lysis were determined. This procedure will form part of an integrated microfluidic system that is being developed with sub-systems for performing cell concentration and lysis, RNA extraction/purification and real-time quantitative RNA detection. The integrated system and its components could be used for a large range of applications including in situ harmful algal bloom detection, transcriptomics and point-of-care diagnostics.
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Affiliation(s)
- M M Bahi
- Sensors Development Group, National Oceanography Centre, Southampton, UK.
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38
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Wang XD, Meier R, Link M, Wolfbeis O. Corrigendum: Photographing Oxygen Distribution. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/anie.201090120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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39
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Wang XD, Meier R, Link M, Wolfbeis O. Berichtigung: Photographing Oxygen Distribution. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.201090120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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40
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41
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Wang XD, Meier R, Link M, Wolfbeis O. Photographing Oxygen Distribution. Angew Chem Int Ed Engl 2010; 49:4907-9. [DOI: 10.1002/anie.201001305] [Citation(s) in RCA: 74] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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42
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Boulart C, Connelly D, Mowlem M. Sensors and technologies for in situ dissolved methane measurements and their evaluation using Technology Readiness Levels. Trends Analyt Chem 2010. [DOI: 10.1016/j.trac.2009.12.001] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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43
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Le Bris N, Duperron S. Chemosynthetic communities and biogeochemical energy pathways along the Mid-Atlantic Ridge: The case of Bathymodiolus azoricus. GEOPHYSICAL MONOGRAPH SERIES 2010. [DOI: 10.1029/2008gm000712] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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