Results 31 to 40 of about 1,138,593 (301)

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, Dermot Diamond, Beirne, Stephen, Lau, King-Tong, Dylan Orpen, Stephen Beirne, King Tong Lau, Orpen, Dylan, Diamond, Dermot, Fay, Cormac, Cormac Fay, Brian Corcoran   +11 more
core   +2 more sources

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, Dermot Diamond, Beirne, Stephen, Lau, King-Tong, Stephen Beirne, King Tong Lau, Diamond, Dermot, Brian Corcoran   +7 more
core   +2 more sources

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, Manas Ranjan Gartia, Te-Wei Chang, Xinhao Wang, Pakapreud Khumwan, Gang Logan Liu   +5 more
doaj   +1 more source

Investigation into the predictive performance of colorimetric sensor strips using RGB, CMYK, HSV, and CIELAB coupled with various data preprocessing methods: a case study on an analysis of water quality parameters

Journal of Analytical Science and Technology, 2021
The potential use of colorimetric sensors has received significant attention due to its feasibility for use in various applications. After reacting with a sample, the image of the colorimetric sensor can be captured and converted into digital data using ...
Nutthatida Phuangsaijai, Jaroon Jakmunee, Sila Kittiwachana   +2 more
doaj   +1 more source

Rapid Trace Detection of Sulfite Residue in White Wine Using a Multichannel Colorimetric Nanozyme Sensor

Foods, 2023
As a commonly used food additive, sulfite (SO32−) is popular with food manufacturers due to the functions of bleaching, sterilizing, and oxidation resistance. However, excess sulfites can pose a threat to human health.
Xiaoyue Yue, Long Fu, Chaoyun Wu, Sheng Xu, Yanhong Bai   +4 more
doaj   +1 more source

Methyl-3-(2-hidroxy-5-nitrophenyl amino)-3-phenylpropanoate Based Colorimetric Sensor for Oxyanions

Indonesian Journal of Chemistry, 2020
A colorimetric anion sensor of methyl-3-(2-hydroxy-5-nitrophenyl amino)-3-phenylpropanoate bearing –OH and –NH groups as binding sites and nitrophenyl as a signaling unit, has been successfully accomplished.
Venty Suryanti, Fajar Rakhman Wibowo, Sekar Handayani   +2 more
doaj   +1 more source

Plug and Play Colorimetric Carbon Dioxide Sensor

, 2022
Carbon dioxide measurement is an important endeavor in many industries such as food packaging, grain storage and health industry. This work presents a reversible, plug and play and low-cost colorimetric CO2 sensor calibrated in a proper concentration ...
João Mendes, Nuno Mendes, Luís C. C. Coelho, Pedro Jorge   +3 more
core   +1 more source

Colorimetric Detection of the SARS-CoV-2 Virus (COVID-19) in Artificial Saliva Using Polydiacetylene Paper Strips

Biosensors, 2022
The spread and resurgence of the SARS-CoV-2 virus (COVID-19 disease) threatens human health and social relations. Prevention of COVID-19 disease partly relies on fabricating low-cost, point-of-care (POC) sensing technology that can rapidly and ...
Christopher D. Prainito, Gaddi Eshun, Francis J. Osonga, Daniel Isika, Cynthia Centeno, Omowunmi A. Sadik   +5 more
doaj   +1 more source

Dual Colorimetric Sensor for Hg2+/Pb2+ and an Efficient Catalyst Based on Silver Nanoparticles Mediating by the Root Extract of Bistorta amplexicaulis

Frontiers in Chemistry, 2020
Environmental pollution derivated from toxic metals and organic toxins is becoming a serious issue worldwide because of their harmful effects on the ecosystem and human health.
Farid Ahmed, Farid Ahmed, Humaira Kabir, Hai Xiong   +3 more
doaj   +1 more source

Classification of colorimetric sensor data using time series [PDF]

, 2021
Colorimetric sensors are widely used as pH indicators, medical diagnostic devices and detection devices. The colorimetric sensor captures the color changes of a chromic chemical (dye) or array of chromic chemicals when exposed to a target substance ...
Dossi, Eleftheria, Jakobsen, Mogens H., Laustsen, Milan, Babamoradi, Hamid, Alstrøm, Tommy S., Francis, Deena P., Mogensen, Jesper, Eleftheria Dossi, Hamid Babamoradi, Tommy Alstrøm, Deena Francis, Mogens Jakobsen, Milan Laustsen, Jesper Mogensen   +13 more
core   +1 more source