Results 21 to 30 of about 1,825,121 (182)

Smartphone-Assisted Aerogel Colorimetric Sensor Array Coupled with Lightweight Deep Learning for Multi-Meat Freshness Monitoring [PDF]

open access: yesGels
Rapid assessment of chilled-meat freshness is constrained by conventional laboratory-based measurements. Although food-detection studies emphasize predictive performance, computational cost is reported less consistently.
Hanzhi Chen   +5 more
doaj   +2 more sources

Smartphone-integrated colorimetric sensor array-based reader system and fluorometric detection of dopamine in male and female geriatric plasma by bluish-green fluorescent carbon quantum dots [PDF]

open access: yesMaterials Today Bio, 2021
A simple, cost-effective system was developed for dopamine (DA) detection using green synthesized 1–6 ​nm honey-based carbon quantum dots (H-CQDs) exhibiting bluish green fluorescence. The H-CQDs exhibited emission at 445 ​nm, with a quantum yield of ∼44%
Gayathri Chellasamy   +4 more
doaj   +2 more sources

Oxygen-vacancy-regulated molybdenum oxide nanosheets for a multi-phosphate discriminative colorimetric sensor array [PDF]

open access: yesJournal of Advanced Research
The detection and identification of various phosphates are crucial in disease diagnostics. However, traditional detection techniques often require the development of multi-ion systems, and the complexity of sensor unit fabrication has limited the broad ...
Cheng Cheng   +6 more
doaj   +2 more sources

Toward Food Freshness Monitoring: Coordination Binding–Based Colorimetric Sensor Array for Sulfur-Containing Amino Acids [PDF]

open access: yesFrontiers in Chemistry, 2021
Herein, a self-assembled colorimetric chemosensor array composed of off-the-shelf catechol dyes and a metal ion (i.e., Zn2+) has been used for the sulfur-containing amino acids (SCAAs; i.e., glutathione, glutathione disulfide, L–cysteine, DL–homocysteine,
Xiaojun Lyu   +6 more
doaj   +2 more sources

The use of colorimetric sensor arrays to discriminate between pathogenic bacteria. [PDF]

open access: yesPLoS ONE, 2013
A colorimetric sensor array is a high-dimensional chemical sensor that is cheap, compact, disposable, robust, and easy to operate, making it a good candidate technology to detect pathogenic bacteria, especially potential bioterrorism agents like Yersinia
Claire L Lonsdale   +6 more
doaj   +4 more sources

Progress in Optical Colorimetric/Fluorometric Sensor Array

open access: yesCHINESE JOURNAL OF ANALYTICAL CHEMISTRY (CHINESE VERSION), 2013
Optical colorimetric/fluorometric sensor array has been widely applied in many fields due to its advantages such as low. cost, easy. operation, and rapid. response. This review described the recent progress in optical colorimetric/fluorometric sensor array and summarizes its applications in the detection of toxic gases, biological samples, ions and ...
Ming-Yan JIA, Liang FENG
openaire   +2 more sources

Colorimetric sensor array combined with machine learning for discriminating the geographical origins and grape varieties of Chinese red wines [PDF]

open access: yesFood Chemistry: X
The volatile compounds present in wines are the main determinants of aroma performance, which can be used as chemical markers to differentiate between wine samples.
Zhan Meng   +8 more
doaj   +2 more sources

Smartphone-Assisted Digital Image-Based Optical Biosensor Array for Quantification of Interleukin-8 Using Antibody-Conjugated Gold Nanoparticles [PDF]

open access: yesMicromachines
We developed a smartphone-assisted digital image-based optical biosensor array using a planar glass slide with sensor spots in a 2 × 5 array format for point-of-care multiplex detection of biomarkers.
Akhil Chandrakanth Komaram   +5 more
doaj   +2 more sources

Haussdorff and hellinger for colorimetric sensor array classification

open access: yes2012 IEEE International Workshop on Machine Learning for Signal Processing, 2012
Development of sensors and systems for detection of chemical compounds is an important challenge with applications in areas such as anti-terrorism, demining, and environmental monitoring. A newly developed colorimetric sensor array is able to detect explosives and volatile organic compounds; however, each sensor reading consists of hundreds of pixel ...
Tommy S. Alstrøm   +4 more
openaire   +2 more sources

Development of a colorimetric sensor array for squid spoilage assessment

open access: yesFood Chemistry, 2015
The aim of this work was to develop and evaluate a rapid, easy-to-use optoelectronic system for the shelf-life assessment of squid in cold storage. For this purpose, an optoelectronic nose was designed, which consisted of an array containing six sensing materials prepared by combining different dyes and two inorganic supports (aluminium oxide and ...
Zaragozá Torres, Patricia   +7 more
openaire   +4 more sources

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