Clinoptilolite‐based Conductometric Sensors for Detection of Ammonium in Aqueous Solutions

Saiapina, Olga; Vronska, Yelyzaveta; Dzyadevych, S. V.; Jaffrézic‐Renault, Nicole

doi:10.1002/elan.202060026

Cited by 4 publications

(6 citation statements)

References 39 publications

(56 reference statements)

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“…The double layer capacitance and electrode polarization of conductometric sensors can easily distort the signals, making it difficult for the data analysis system to distinguish the analyte signals from the noise. 72 Despite some reports of breakthroughs for sensor repeatability, 73 high repeatability with a deviation of 0.5% can only be sustained for around 10 h, which cannot satisfy the requirements of days or months of continuous monitoring needed for at-field devices. Thus, the long-term repeatability of conductometric sensors will need to be enhanced in the future for real-time soil nitrogen monitoring.…”

Section: Fertilizer Productionmentioning

confidence: 99%

“…Currently, the major barrier for conductometric sensors as at-field devices is their poor repeatability. The double layer capacitance and electrode polarization of conductometric sensors can easily distort the signals, making it difficult for the data analysis system to distinguish the analyte signals from the noise . Despite some reports of breakthroughs for sensor repeatability, high repeatability with a deviation of 0.5% can only be sustained for around 10 h, which cannot satisfy the requirements of days or months of continuous monitoring needed for at-field devices.…”

Section: Soil Sensors For Enabling Responsive Fertilizer Productionmentioning

confidence: 99%

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At-Field and On-Demand Nitrogenous Fertilizer Synthesis

Butler

Fan

Grewal

et al. 2023

ACS Sustainable Chem. Eng.

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Small-scale fertilizer synthesis enabled by atmospheric-pressure processes such as plasma and electrochemical technologies may be promising to mitigate the environmental and social costs associated with the energy-and carbon-intensive Haber−Bosch (HB) process. Modular nitrogen fixation systems that utilize sustainable inputs have been developed, but gaps remain regarding how these devices may integrate into agricultural practices. In this perspective, we propose a combination of nonthermal plasma−electrolytic nitrogen fixation with electrochemical soil sensors to produce fertilizer-enriched irrigation water on demand. First, we discuss the plasma technologies that could be used in an at-field responsive plasma-activated (ARPA) process. Based on current bench-scale systems, we found that ARPA synthesis could provide sufficient amounts of fixed nitrogen to meet crop demand. Next, we describe electrochemical sensor technologies for monitoring soil nitrogen and consider the barriers to implementing these technologies in fields. Further, we conducted an abbreviated life cycle analysis of the proposed ARPA concept and found potential environmental impact reductions by avoiding HB fertilizer synthesis, storage, and transportation and by reducing reactive nitrogen losses typically associated with largescale overfertilization. Finally, we consider the environmental, social, and economic implications of ARPA technologies for water treatment, fertilizer market impacts, fertilizer accessibility, safety, stakeholder buy-in, and agricultural management.

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Section: Fertilizer Productionmentioning

confidence: 99%

Section: Soil Sensors For Enabling Responsive Fertilizer Productionmentioning

confidence: 99%

At-Field and On-Demand Nitrogenous Fertilizer Synthesis

Butler

Fan

Grewal

et al. 2023

ACS Sustainable Chem. Eng.

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“…Perera et al [102] designed a conductive sensor for the detection of biomarkers. Saiapina et al [103] used conductometric sensors for the selective detection of ammonium solutions. As per experimental results, conductometric methods are fast, inexpensive, and repeatable; however, the main drawback is non-specific measurements.…”

Section: Mems Sensors and Biosensors Based On Conductometry And Capacitymentioning

confidence: 99%

Determination of Drugs in Clinical Trials: Current Status and Outlook

Tavana

Chen

2022

Sensors

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All pharmaceutical drugs, vaccines, cosmetic products, and many medical breakthroughs must first be approved through clinical research and trials before advancing to standard practice or entering the marketplace. Clinical trials are sets of tests that are required to determine the safety and efficacy of pharmaceutical compounds, drugs, and treatments. There is one pre-phase and four main clinical phase requirements that every drug must pass to obtain final approval. Analytical techniques play a unique role in clinical trials for measuring the concentrations of pharmaceutical compounds in biological matrices and monitoring the conditions of patients (or volunteers) during various clinical phases. This review focuses on recent analytical methods that are employed to determine the concentrations of drugs and medications in biological matrices, including whole blood, plasma, urine, and breast milk. Four primary analytical techniques (extraction, spectroscopy, chromatography, and electrochemical) are discussed, and their advantages and limitations are assessed. Subsequent to a survey of evidence and results, it is clear that microelectromechanical system (MEMS) based electrochemical sensor and biosensor technologies exhibit several notable advantages over other analytical methods, and their future prospects are discussed.

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“…Because of the differences in measurement conditions and research tasks, such characteristics of different conductometric systems can be compared only statistically or when solving the same specific tasks. The developed here devices were applied in the biosensor measurements for detection of a wide range of analytes as demonstrated in [34][35][36][37][38].…”

Section: %-5%mentioning

confidence: 99%

“…Channel sensitivity calibration can be performed with an accuracy of ±5%. An experimental series of biosensor systems based on this channel has received practical application [34][35][36][37][38].…”

Section: Summary: Problems Ways and Means Of Their Solution And The R...mentioning

confidence: 99%

Solutions for enhancement of sensitivity and metrological reliability of conductometric biosensor systems

et al. 2021

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The article presents the results of research aimed at the creation of highly sensitive, compact and inexpensive biosensor analyzers based on differential conductometry. The main factors, which reduce the sensitivity of the measuring channel and cause the measurement errors, are considered; the measurement methods to eliminate or minimize their effect are discussed. The results of theoretical and experimental studies of conductometric converters of biosensors and measuring circuits are presented. The technical realization of these methods is proposed; the important characteristics of the sensors and the developed devices are described, as well as the outcomes obtained at their approbation.

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Clinoptilolite‐based Conductometric Sensors for Detection of Ammonium in Aqueous Solutions

Cited by 4 publications

References 39 publications

At-Field and On-Demand Nitrogenous Fertilizer Synthesis

At-Field and On-Demand Nitrogenous Fertilizer Synthesis

Determination of Drugs in Clinical Trials: Current Status and Outlook

Solutions for enhancement of sensitivity and metrological reliability of conductometric biosensor systems

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