Results 41 to 50 of about 1,138,593 (301)
Research, 2022 Expensive instruments and complicated data processing are often required to discriminate solvents with similar structures and properties. Colorimetric sensors with high selectivity, low cost, and good portability are highly desirable to simplify such ...
Qianqian Fu +5 more
doaj +1 more source
Deployable Lab-on-a-Chip Sensor for Colorimetric Measurements
Micromachines, 2023 The infield measurement of nutrients, heavy metals, and other contaminants in water is still a needed tool in environmental sciences. The Lab-on-a-chip approach can develop deployable instruments that use the standardized analytical assay in a ...
Stefan Gassmann +2 more
doaj +1 more source
Shipin gongye ke-ji, 2023 In this study, a simple, economical and rapid colorimetric assay was developed for the detection of Sudan, in which Sudan-binding aptamer was used as recognition element, unmodified gold nanoparticles (AuNPs) as sensing signal, and poly ...
Changyong LIU +4 more
doaj +1 more source
A colorimetric sensor array of porous pigments [PDF]
The Analyst, 2009 The development of a low-cost, simple colorimetric sensor array capable of the detection and identification of toxic gases is reported. This technology uses a disposable printed array of porous pigments in which metalloporphyrins and chemically-responsive dyes are immobilized in a porous matrix of organically modified siloxanes (ormosils) and printed ...
Sung H, Lim +3 more
openaire +2 more sources
Digital colorimetric sensing for real‐time gas monitoring for smart green energy system
EcoMat, 2023 In this study, we demonstrate that a digital colorimetric sensor platform can transform a conventional energy system, such as gas‐insulated switchgear (GIS) into a smart green energy system. Our sensor platform consists of a colorimetric sensor film (CSF)
Hui Hun Cho +8 more
doaj +1 more source
Video analysis of events within chemical sensor networks [PDF]
, 2005 This paper describes how we deploy video surveillance techniques to monitor the activities within a sensor network in order to detect environmental events.
Corcoran, Brian +6 more
core +2 more sources
Nanoporous Silica-Dye Microspheres for Enhanced Colorimetric Detection of Cyclohexanone
Chemosensors, 2018 Forensic detection of non-volatile nitro explosives poses a difficult analytical challenge. A colorimetric sensor comprising of ultrasonically prepared silica-dye microspheres was developed for the sensitive gas detection of cyclohexanone, a volatile ...
Zheng Li
doaj +1 more source
Improving Color Accuracy of Colorimetric Sensors [PDF]
Sensors, 2018 Accurate measurements of reflectance and color require spectrophotometers with prices often exceeding $3000. Recently, new “color instruments” became available with much lower prices, thanks to the availability of inexpensive colorimetric sensors. We investigated the Node+ChromaPro and the Color Muse, launched in 2015 and 2016 by Variable Inc.
Kirchner, Eric +2 more
openaire +3 more sources
Improvement Methods for Colorimetric Gas Sensor for Use in Indoor Livestock Farming
Proceedings, 2019 Different published colorimetric sensors were investigated with the ultimate goal to develop a colorimetric sensor for a closed livestock farm, applicable in a rough environment. The methods were investigated to improve the lack of sensitivity, roughness,
Jan-Kees Boerman +6 more
doaj +1 more source
Frontiers in Chemistry, 2022 The mimic enzyme has become a research hotspot in recent years because of its advantages of high stability, convenient preparation, and low price. In this article, Co3O4 nanosheets synthesized by a simple hydrothermal method possess the characteristics ...
Jingying Tan +5 more
doaj +1 more source