ISE and Chemfet sensors in greenhouse cultivation

Gieling, Th.H.; Straten, G. van; Janßen, Hans; Wouters, Hendrik

doi:10.1016/j.snb.2004.02.045

Cited by 24 publications

(21 citation statements)

References 10 publications

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“…Presently, many growers flush their nutrient solution when they do not have full confidence in its quality, usually based on a predetermined EC discharge criterion [13]. Improved access to nutrient status data will reduce the need for the flushing of effluent and thus reduce nutrient and wastewater outputs [43,44]. Studies directly comparing open versus closed systems for various crop types have shown savings in both water and nutrients for equivalent plant yields in closed systems [45].…”

Section: Justification For the Development Of On-line Ion-selective Smentioning

confidence: 99%

“…There has been great interest in their specific relevance in soil and nutrient solution monitoring for plant growth [5,6,36,135–138]. And there have been several explicit tests of ISEs for hydroponic nutrient solution monitoring [5,14,41,42,44,139,140]. Concluding remarks included; “The ion selective electrodes used here proved to be temperamental devices with a number of inherent problems.” [139], “In light of the potential limitations of ISE technology in individual ion based control systems, other advanced sensor types are being explored.” [14], “Yet, a number of practical difficulties still need to be resolved, in particular the stability and robustness of the measuring system, and the life expectation of the sensors.” [42], “No sensors of acceptable quality have been offered on the market yet.” [44].…”

Section: Ion-selective Sensor Technologies For Terrestrial and Space-mentioning

confidence: 99%

“…And there have been several explicit tests of ISEs for hydroponic nutrient solution monitoring [5,14,41,42,44,139,140]. Concluding remarks included; “The ion selective electrodes used here proved to be temperamental devices with a number of inherent problems.” [139], “In light of the potential limitations of ISE technology in individual ion based control systems, other advanced sensor types are being explored.” [14], “Yet, a number of practical difficulties still need to be resolved, in particular the stability and robustness of the measuring system, and the life expectation of the sensors.” [42], “No sensors of acceptable quality have been offered on the market yet.” [44]. The literature raises the following specific limitations with ISEs, drift/stability [5,14,44,140–143], electrical interference [144–148], temperature sensitivity [14,140,142], lifetime [42,44] and the requirement of a reference electrode [144].…”

Section: Ion-selective Sensor Technologies For Terrestrial and Space-mentioning

confidence: 99%

“…Several other references include discussion of both ISE and ISFET sensor types with relevance to plant growth systems [42,44,141,156,157]. Compared to ISEs, ISFETs allow for further miniaturization, reduced response times and reduced susceptibility to external electromagnetic fields [154].…”

Section: Ion-selective Sensor Technologies For Terrestrial and Space-mentioning

confidence: 99%

See 3 more Smart Citations

Ion-Specific Nutrient Management in Closed Systems: The Necessity for Ion-Selective Sensors in Terrestrial and Space-Based Agriculture and Water Management Systems

Bamsey

Graham

Thompson

et al. 2012

Sensors

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The ability to monitor and control plant nutrient ions in fertigation solutions, on an ion-specific basis, is critical to the future of controlled environment agriculture crop production, be it in traditional terrestrial settings (e.g., greenhouse crop production) or as a component of bioregenerative life support systems for long duration space exploration. Several technologies are currently available that can provide the required measurement of ion-specific activities in solution. The greenhouse sector has invested in research examining the potential of a number of these technologies to meet the industry's demanding requirements, and although no ideal solution yet exists for on-line measurement, growers do utilize technologies such as high-performance liquid chromatography to provide off-line measurements. An analogous situation exists on the International Space Station where, technological solutions are sought, but currently on-orbit water quality monitoring is considerably restricted. This paper examines the specific advantages that on-line ion-selective sensors could provide to plant production systems both terrestrially and when utilized in space-based biological life support systems and how similar technologies could be applied to nominal on-orbit water quality monitoring. A historical development and technical review of the various ion-selective monitoring technologies is provided.

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Section: Justification For the Development Of On-line Ion-selective Smentioning

confidence: 99%

Section: Ion-selective Sensor Technologies For Terrestrial and Space-mentioning

confidence: 99%

Section: Ion-selective Sensor Technologies For Terrestrial and Space-mentioning

confidence: 99%

Section: Ion-selective Sensor Technologies For Terrestrial and Space-mentioning

confidence: 99%

See 2 more Smart Citations

Ion-Specific Nutrient Management in Closed Systems: The Necessity for Ion-Selective Sensors in Terrestrial and Space-Based Agriculture and Water Management Systems

Bamsey

Graham

Thompson

et al. 2012

Sensors

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“…Several investigators have developed systems that inject liquid fertilizers based upon ion-specific concentration measurements. 49,50 These systems automatically ensure that the nutrient demand of the plants is satisfied.…”

Section: -21mentioning

confidence: 99%

Sensors for Agriculture and the Food Industry

Simonian

Chin

2010

Electrochem. Soc. Interface

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The Electrochemical Society Interface • Winter 2010 41 M odern agricultural management relies strongly on many different sensing methodologies to provide accurate information on crop, soil, climate, and environmental conditions. Almost every sensing technique may find an application in agriculture and the food industry. This paper briefly reviews some of the applications of sensors in agriculture and the food industry. Remote Spectral SensingRemote spectral sensing of crops has been intensively investigated and proven to be an important tool in modern agricultural management. Agricultural remote spectral sensing typically refers to imagery taken from above a field where the incident electromagnetic radiation is generally sunlight.1 When sunlight hits the surface of the crop or soil, the light will be reflected, absorbed, or transmitted, depending on the wavelength of the light and the characteristics of the contacted body. The differences in the physical and chemical properties of the contacted body, such as leaf color, texture, and shape, determine the amount of the reflected, absorbed, and transmitted energy of a specific wavelength. The most common remote sensing technique used in agriculture is spectral reflectance measurements, in which the spectral reflectance (the ratio of reflected energy to incident energy) is measured as a function of wavelength. 2,3 The images of the wavelength-dependent reflectance Sensors for Agriculture and the Food Industryby Suiqiong Li, Aleksandr Simonian, and Bryan A. Chin curves, which are known as a spectral signature, are unique to plant species and conditions. The wavelengths measured in most agricultural applications cover the visible (400-700 nm) to near infrared (700-2500 nm) regions of the electromagnetic spectrum. 1 Research has shown that spectral signatures in this region offer a wealth of information regarding physiological and biological properties of crops and soil.1,4,5 Special vegetation and crop indices have been derived from the measured spectral reflectance values for studying different agricultural properties. 1,6 Spectrometers, radiometers, or digital cameras can be mounted on a variety of platforms either ground (truck, tractor), aerial (aircraft), or space (satellite) to gather data. Sequential measurements of small areas are made as the sensor platform moves and subsequent processing assembles measurement results into an image. 3 The remote sensing is characterized by spatial resolution, spectral resolution, and temporal resolution.1,3 Spatial resolution refers to the smallest area that can be distinguished in the image. Spatial resolution is directly related to the image pixel size. Spectral resolution refers to the number and width of the portions of the electromagnetic spectrum measured by the sensor. Temporal resolution refers to how often a remote sensing platform can provide measurements of an area. Agriculture and farm management applications typically require a spatial resolution of 2-5 m with a 1 to 3-day temporal resolution, a 1 pixel geolocati...

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Microfabricated Ion‐Selective Transistors with Fast and Super‐Nernstian Response

et al. 2020

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Transistor‐based ion sensors have evolved significantly, but the best‐performing ones rely on a liquid electrolyte as an internal ion reservoir between the ion‐selective membrane and the channel. This liquid reservoir makes sensor miniaturization difficult and leads to devices that are bulky and have limited mechanical flexibility, which is holding back the development of high‐performance wearable/implantable ion sensors. This work demonstrates microfabricated ion‐selective organic electrochemical transistors (OECTs) with a transconductance of 4 mS, in which a thin polyelectrolyte film with mobile sodium ions replaces the liquid reservoir. These devices are capable of selective detection of various ions with a fast response time (≈1 s), a super‐Nernstian sensitivity (85 mV dec−1), and a high current sensitivity (224 µA dec−1), comparing favorably to other ion sensors based on traditional and emerging materials. Furthermore, the ion‐selective OECTs are stable with highly reproducible sensitivity even after 5 months. These characteristics pave the way for new applications in implantable and wearable electronics.

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ISE and Chemfet sensors in greenhouse cultivation

Cited by 24 publications

References 10 publications

Ion-Specific Nutrient Management in Closed Systems: The Necessity for Ion-Selective Sensors in Terrestrial and Space-Based Agriculture and Water Management Systems

Ion-Specific Nutrient Management in Closed Systems: The Necessity for Ion-Selective Sensors in Terrestrial and Space-Based Agriculture and Water Management Systems

Sensors for Agriculture and the Food Industry

Microfabricated Ion‐Selective Transistors with Fast and Super‐Nernstian Response

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