Results 21 to 30 of about 28,173 (303)
Revisiting Colorimetric Gas Sensors: Compact, Versatile and Cost-Effective
Proceedings, 2020 We report on an inexpensive and very selective gas sensor implemented by simply combining colorimetric indicators casted on top of acetate-based transparent tape, with a commercial microchip adapted here to measure optical reflectance. This sensor can be
Christian Driau +4 more
doaj +1 more source
Biosensors, 2022 In emergency medicine, the lactate level is commonly used as an indicator of the severity and response to the treatment of hypoperfusion-related diseases. Clinical lactate measurements generally require 3 h for clinical determination.
Hyun Jung Kim +4 more
doaj +1 more source
Inkjet printed LED based pH chemical sensor for gas sensing [PDF]
, 2009 Predictable behaviour is a critical factor when developing a sensor for potential deployment within a wireless sensor network (WSN). The work presented here details the fabrication and performance of an optical chemical sensor for gaseous acetic acid ...
O'Toole, Martina +8 more
core +1 more source
Fabrication of Porphyrin Based Colorimetric Sensor for the Detection of Liver Cirrhosis Biomarker
, 2023 The early detection of liver cirrhosis biomarkers is crucial for timely medical intervention and improved patient outcomes. In this study, we present the fabrication of a novel colorimetric sensor based on porphyrin derivatives for the specific and ...
Priyanka, Kumari +5 more
core +1 more source
Sensors, 2019 A developed colorimetric pH sensor film based on edible materials for real-time monitoring of food freshness is described. The mixed natural dyes from edible plants Clitoria sp and Brassica sp were extracted and incorporated into ι-carrageenan film ...
Noor Azizah Ahmad +4 more
doaj +1 more source
The optimisation of a paired emitter-detector diode optical pH sensing device [PDF]
, 2010 With recent improvements in wireless sensor network hardware there has been a concurrent push to develop sensors that are suitable in terms of price and performance.
Corcoran, Brian +11 more
core +1 more source
Fast-Response Colorimetric UVC Sensor Made of a Ga2O3 Photocatalyst with a Hole Scavenger
, 2021 A fast-response colorimetric ultraviolet-C (UVC) sensor was demonstrated using a gallium oxide (Ga2O3) photocatalyst with small amounts of triethanolamine (TEOA) in methylene blue (MB) solutions and a conventional RGB photodetector.
Sunjae Kim +4 more
core +1 more source
Chemical event tracking using a low-cost wireless chemical sensing network [PDF]
, 2008 A recently developed low-cost light emitting diode (LED) chemical sensing technique is integrated with a Mica2Dot wireless communications platform to form a deployable wireless chemical event indicator network.
Corcoran, Brian +7 more
core +1 more source
A new LED-LED portable CO2 gas sensor based on an interchangeable membrane system for industrial applications [PDF]
, 2011 CO2 monitoring is important for many areas of high economic relevance, like environmental monitoring, control of biotechnological processes in bio-pharmaceutical industries, and the food industry, particularly controlled atmosphere storage rooms and ...
Vargas-Sansalvador, Isabel María Pérez de +15 more
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Colorimetric plasmon resonance microfluidics on nanohole array sensors
Sensing and Bio-Sensing Research, 2015 We present the label-free colorimetric visualization in microfluidics using plasmon resonance on a large-area and over a wide field-of-view (>100 mm2) nanohole array device called nanoLycurgus Cup Array (nanoLCA).
Austin Hsiao +5 more
doaj +1 more source