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Showing 1 to 10 of 10 for “"Optode"”.
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Light Emitting Diodes and a Monochrome Camera to Measure Chemical Optode Response
<p>Bulk chemical optodes employing chromoionophores respond to the analyte of interest by altering their color. Accordingly it is necessary to have a means of measuring that color in a quantitative manner. In this work a pH-sensitive optode sensor is used as a basis for comparing two different …
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An assessment of Eddy Correlation technique in marine habitats
… Microelectrode system (ECE) and Eddy Correlation Optode system (ECO) for O₂ flux measurement in seagrass meadows and benthic organisms in the laboratory and field. Although EC has been used in aquatic system for over a decade, this system is still under development to gain robust results. …
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Dynamic state-space estimation of the hemodynamic response with Near-Infrared Spectroscopy
… from small source-detector separation (1 cm) optodes as regressors. Since those additional measurements are mainly sensitive to superficial layers in adult humans, they help in removing the systemic interference present in longer separation measurements (3 cm). Encouraged by those findings, we …
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Development of a Biosensor to Predict Activated Sludge Deflocculation, and the Link Between Chlorination and Potassium Efflux
… with a fluorescence-based sensor called an optode. The components of the system satisfy the project requirements, which include minimal expense (both operation and manufacture), on-line capability and minimal maintenance. The research conducted to date demonstrates the ability of the …
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Stimuli responsive polymer gels for sensing applications
… IL. The IL simplified polymer gel is termed an optode within this chapter as (a) it is prepared the same manner as optodes, (b) the IL performs many of the same functions as previous materials used in optode design and (c) the analyte or ion movement between the aqueous and organic phases …
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Design and Frabication of Optical Li+ Sensors for Application in Li-ion Batteries
… operation principles of planar and nanoparticle optodes as well as their application as part of optical fibre sensors. Following this is a discussion of potential strategies for the immobilisation of a chemosensor onto a solid support for applications as an optode sensor. Subsequently, the …
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High throughput optical sensor arrays for drug screening
… cellular ion flux in multi-well plate format. Optodes are employed as the primary sensors, which are an optically based ion selective polymer. These assays utilize both potassium and sodium selective optodes to provide real time measurements of extracellular ion concentration, which can yield …
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High-Resolution In Situ Oxygen-Argon Studies of Surface Biological and Physical Processes in the Polar Oceans
… functioning that we measure underway using an optode and Equilibrator Inlet Mass Spectrometry (EIMS). Total O2 measurements are common throughout the historical and autonomous record but are influenced by biological (net metabolic balance) and physical (temperature, salinity, pressure changes, …
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Next generation near infrared (NIR) and shortwave infrared (SWIR) wearables for breast cancer imaging
… and validated in this project, including a high-optode density NIR probe for monitoring hemodynamics and a first-generation SWIR probe for quantifying water and lipid. Measurements on tissue-mimicking channel flow phantoms confirmed the ability of the NIR probe to quantify absorption contrast in …
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Factors Influencing the Spatial and Temporal Distrubtion of Primary Productivity and Community Respiration in the Mississippi Coastal Estuarine Region
… detection of dissolved oxygen (DO) using novel optode technology. In addition, various biogeochemical, optical, and hydrographic parameters were examined over 14 stations throughout the estuary over a year, using ground and satellite (MODIS Aqua) measurements. In this study, consistently low …