Results 31 to 40 of about 61,204 (302)

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

Absorbance based light emitting diode optical sensors and sensing devices [PDF]

, 2008
The ever increasing demand for in situ monitoring of health, environment and security has created a need for reliable, miniaturised sensing devices. To achieve this, appropriate analytical devices are required that possess operating characteristics of ...
Acharya, Andrew, Anfalt, Barron, Beach, Benson, Berry, Betteridge, Betteridge, Betteridge, Betteridge, Blundell, Boring, Bowden, Cantrell, Cardoso, Carroll, Chapin, Chediak, Chen, Clinch, Collins, Collins, Collins, Dasgupta, Dasgupta, Dasgupta, Dasgupta, David, Daykin, Deng, Dermot Diamond, Diamond, Diamond, Dong, Dybko, Eiichi, Ellis, Eom, Feres, Ferrer, Firstenberg-Eden, Flaschka, Fonseca, Fonseca, Freeman, Galanis, Gardolinski, Gotz, Greenway, Gros, Gros, Gros, Hauser, Hauser, Hauser, Hauser, Higgins, Ho, Holonyak, Hooley, Huang, Ichikawa, Jambunathan, Johns, Johnson, Kawamura, King, Koch, Kovac, Kuban, Kuo, Lau, Lau, Lau, Lau, Lau, Lee, Li, Liu, Liu, Liu, Liu, Lu, Lu, Lyddy-Meaney, Marle, Martina O’Toole, Matias, Mims, Mims, Mitrani, O'Toole, O'Toole, O'Toole, Pacquit, Pacquit, Park, Petsul, Rainelli, Ramırez-Garcıa, Ramirez-Garcia, Riley, Rocha, Samanta, Santos, Schawarz, Schmidt, Schmidt, Schnable, Schrodle, Sequeira, Sequeira, Singh, Smardzewski, Smiddy, Sombatsompop, Sonne, Suzuki, Suzuki, Taib, Tan, Taniyasu, Teshima, Toda, Trojanowicz, Trojanowicz, Trojanowicz, Tubino, Tubino, Vachirapatama, White, Worsfold, Yamada, Yang, Zagatto, Zhang, Zude, Zukauskas   +138 more
core   +3 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

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.
Beirne, Stephen, Corcoran, Brian, Diamond, Dermot, Lau, King-Tong   +3 more
core   +2 more sources

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

Machine-Readable Pattern for Colorimetric Sensor Interrogation [PDF]

EUROSENSORS 2018, 2018
We present a systematic methodology to generate machine-readable patterns embodying all the elements needed to carry out colorimetric measurements with conventional color cameras in an automated, robust and accurate manner. Our approach relies on the well-stablished machine-readable features of the QR Codes, to detect the pattern, identify the color ...
Ismael Benito-Altamirano, Peter Pfeiffer, Oriol Cusola, J. Daniel Prades   +3 more
openaire   +3 more sources

A colorimetric CMOS-based platform for rapid total serum cholesterol quantification [PDF]

, 2017
Elevated cholesterol levels are associated with a greater risk of developing cardiovascular disease and other illnesses, making it a prime candidate for detection on a disposable biosensor for rapid point of care diagnostics.
Al-Rawhani, Mohammed A., Barrett, Michael P., Beeley, James, Campbell, Gordon, Cheah, Boon Chong, Cumming, David R.S., Gouveia, Luiz Carlos, Grant, James P., Hu, Chunxiao, MacDonald, Alasdair Iain, Martin, Christopher   +10 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

Wide-Range Optical CMOS-Based Diagnostics [PDF]

, 2017
Colorimetric, chemiluminescence and refractive index based diagnostics are some of the most important sensing techniques in biomedical science and clinical medicine.
Al-Rawhani, Mohammed A., Beeley, James, Cheah, Boon Chong, Cumming, David R.S., Giagkoulovits, Christos, Nagy, Bence, Shakoor, Abdul   +6 more
core   +1 more source