Results 21 to 30 of about 575,982 (298)

Increasing pattern recognition accuracy for chemical sensing by evolutionary based drift compensation [PDF]

open access: yes, 2011
Artificial olfaction systems, which mimic human olfaction by using arrays of gas chemical sensors combined with pattern recognition methods, represent a potentially low-cost tool in many areas of industry such as perfumery, food and drink production ...
A. Scionti   +37 more
core   +3 more sources

L-Tryptophan Adsorbed on Au and Ag Nanostructured Substrates: A SERS Study

open access: yesApplied Sciences
The objective of this study was to determine the most stable conformation of L-tryptophan (L-Tryp) on gold and silver nanoparticles. Additionally, this work investigated how these parameters were influenced by analyte concentration, nanoparticle size ...
Tamara Félix-Massa   +11 more
doaj   +1 more source

Development of Photonic Crystal Fiber Based Gas/ Chemical Sensors

open access: yes, 2018
The development of highly-sensitive and miniaturized sensors that capable of real-time analytes detection is highly desirable. Nowadays, toxic or colorless gas detection, air pollution monitoring, harmful chemical, pressure, strain, humidity, and ...
AA Rifat   +64 more
core   +1 more source

Materials science and the sensor revolution [PDF]

open access: yes, 2010
For the past decade, we have been investigating strategies to develop ways to provide chemical sensing platforms capable of long-term deployment in remote locations1-3.
Benito-Lopez, Fernando   +2 more
core   +1 more source

Chemical Vapour Deposition of MWCNT on Silica Coated Fe3O4 and Use of Response Surface Methodology for Optimizing the Extraction of Organophosphorus Pesticides from Water

open access: yesInternational Journal of Analytical Chemistry, 2019
Multiwalled carbon nanotube (MWCNT) was fixed onto the surface of a magnetic silica (Fe3O4@SiO2) substrate via chemical vapour deposition (CVD). Acetylene gas was used as the carbon source and cobalt oxide as the catalyst.
Veronica W. O. Wanjeri   +5 more
doaj   +1 more source

Explosives Analysis Using Thin-Layer Chromatography–Quantum Cascade Laser Spectroscopy

open access: yesMolecules
A new hyphenated technique using thin-layer chromatography (TLC) to separate analytes in mixtures, coupled with mid-infrared (MIR) laser spectroscopy for identification and quantification, is presented.
John R. Castro-Suarez   +7 more
doaj   +1 more source

Electrochemical Detection of Dinitrobenzene on Silicon Electrodes: Toward Explosives Sensors

open access: yesSurfaces, 2022
Detection of explosives is vital for protection and criminal investigations, and developing novel explosives’ sensors stands at the forefront of the analytical and forensic chemistry endeavors.
Essam M. Dief   +2 more
doaj   +1 more source

3-Thienylboronic Acid as a Receptor for Diol-Containing Compounds: A Study by Isothermal Titration Calorimetry

open access: yesChemosensors, 2022
The electrochemical activity of 3-thienylboronic acid and its feature to form polymer films makes it a perspective receptor material for sensor applications.
Yulia Efremenko, Vladimir M. Mirsky
doaj   +1 more source

DNA-decorated graphene chemical sensors

open access: yes, 2010
Graphene is a true two dimensional material with exceptional electronic properties and enormous potential for practical applications. Graphene's promise as a chemical sensor material has been noted but there has been relatively little work on practical ...
Goldsmith, Brett R.   +3 more
core   +2 more sources

Chemical Sensors - Analytical Instruments

open access: yesCHIMIA, 1999
Recent developments in our laboratory belonging to two main areas of current interest, namely amperometric gas sensors and capillary electrophoresis instrumentation, are highlighted.
Peter C. Hauser   +5 more
doaj   +1 more source

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