Fabrication of Electrochemical Nanosensor for Detection of Nitrate Content in Soil Extract

Kundu, Monika; Krishnan, P.; Chobhe, Kapil Atmaram; Manjaiah, K.M.; Pant, R. P.; Chawla, Gautam

doi:10.1007/s42729-022-00845-5

Cited by 8 publications

(4 citation statements)

References 29 publications

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“…These advantages are key for detecting ions in soil [46]. Various voltammetry techniques have been used for detecting ions in soil, such as cyclic voltammetry (CV) [23,24,[47][48][49][50][51][52][53][54][55][56], square wave voltammetry (SWV) [50,[57][58][59], and differential pulse voltammetry (DPV) [60]. While all of these techniques involve sweeping a voltage across the working electrode as a function of time, the waveform differs for each voltametric technique.…”

Section: Voltametric Sensorsmentioning

confidence: 99%

“…The limit of detection (LOD) of the sensor was 2.3 µM with a linear range of 0.05-5 mM in real soil samples, and the detection results were within 96% of measurements carried out using standard methods. Nitrate detection using cyclic voltammetry has also been carried out by Kundu et al by using commercial screen-printed sensors onto which multiwalled carbon nanotubes (CNT) and hematite nanoflowers (α-Fe 2 O 3 ) were drop-casted [47]. Surface modification of the electrodes was performed using the nitrate reductase (NiR/CNT-α-Fe 2 O 3 /SPE) enzyme and bovine serum albumin (BSA/NiR/CNTα-Fe 2 O 3 /SPE).…”

Section: Cyclic Voltammetrymentioning

confidence: 99%

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Underground Ink: Printed Electronics Enabling Electrochemical Sensing in Soil

Chen,

Kachhadiya,

Muhtasim

et al. 2024

Micromachines

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Improving agricultural production relies on the decisions and actions of farmers and land managers, highlighting the importance of efficient soil monitoring techniques for better resource management and reduced environmental impacts. Despite considerable advancements in soil sensors, their traditional bulky counterparts cause difficulty in widespread adoption and large-scale deployment. Printed electronics emerge as a promising technology, offering flexibility in device design, cost-effectiveness for mass production, and a compact footprint suitable for versatile deployment platforms. This review overviews how printed sensors are used in monitoring soil parameters through electrochemical sensing mechanisms, enabling direct measurement of nutrients, moisture content, pH value, and others. Notably, printed sensors address scalability and cost concerns in fabrication, making them suitable for deployment across large crop fields. Additionally, seamlessly integrating printed sensors with printed antenna units or traditional integrated circuits can facilitate comprehensive functionality for real-time data collection and communication. This real-time information empowers informed decision-making, optimizes resource management, and enhances crop yield. This review aims to provide a comprehensive overview of recent work related to printed electrochemical soil sensors, ultimately providing insight into future research directions that can enable widespread adoption of precision agriculture technologies.

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Section: Voltametric Sensorsmentioning

confidence: 99%

Section: Cyclic Voltammetrymentioning

confidence: 99%

Underground Ink: Printed Electronics Enabling Electrochemical Sensing in Soil

Chen,

Kachhadiya,

Muhtasim

et al. 2024

Micromachines

View full text Add to dashboard Cite

show abstract

“…For instance, a bovine serum albumin/nitrate reductase/carbon nanotube−α-Fe 2 O 3 (BSA/NiR/CNT-α-Fe 2 O 3 ) voltammetric nanosensor exhibited a high sensitivity of 63.87 μA log(mg L −1 ) −1 cm −2 , LOD of 0.09 ppm, and high accuracy of 0.998 for the measurement of nitrate in the soil extract solution. 69 Nevertheless, this high accuracy deteriorated to less than 0.3 in an at-field monitoring device, exemplifying the challenges of using such voltammetric sensors for continuous and accurate measurement of soil nitrate concentration.…”

Section: Fertilizer Productionmentioning

confidence: 99%

“…When voltammetric sensors are applied in soil fields, they often exhibit poor repeatability due to impacts of soil chemical properties such as soil salinity and soil organic carbon. , Thus, current voltammetric soil sensors mostly are used in soil slurry and soil extract solution, in which the soil sample contains enough water and target analyte (e.g., nitrate, ammonium) to avoid the measurement deviation from interferences (e.g., SOC) that occurs in pristine soil samples. For instance, a bovine serum albumin/nitrate reductase/carbon nanotube−α-Fe 2 O 3 (BSA/NiR/CNT-α-Fe 2 O 3 ) voltammetric nanosensor exhibited a high sensitivity of 63.87 μA log(mg L −1 ) −1 cm –2 , LOD of 0.09 ppm, and high accuracy of 0.998 for the measurement of nitrate in the soil extract solution . Nevertheless, this high accuracy deteriorated to less than 0.3 in an at-field monitoring device, exemplifying the challenges of using such voltammetric sensors for continuous and accurate measurement of soil nitrate concentration.…”

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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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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Nanosensors in Agriculture: Applications, Prospects, and Challenges

El-Chaghaby,

Rashad

2023

Handbook of Nanosensors

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Fabrication of Electrochemical Nanosensor for Detection of Nitrate Content in Soil Extract

Cited by 8 publications

References 29 publications

Underground Ink: Printed Electronics Enabling Electrochemical Sensing in Soil

Underground Ink: Printed Electronics Enabling Electrochemical Sensing in Soil

At-Field and On-Demand Nitrogenous Fertilizer Synthesis

Nanosensors in Agriculture: Applications, Prospects, and Challenges

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