Results 141 to 150 of about 1,825,121 (182)
Some of the next articles are maybe not open access.
Detection of Chemical Warfare Agents by Colorimetric Sensor Arrays
ACS Sensors, 2020We report the successful use of colorimetric arrays to identify chemical warfare agents (CWAs). Methods were developed to interpret and analyze a 73-indicator array with an entirely automated workflow. Using a cross-validated first-nearest-neighbor algorithm for assessing detection and identification performances on 632 exposures, at 30 min ...
Charles E. Davidson +11 more
openaire +2 more sources
Hand-Held Reader for Colorimetric Sensor Arrays
Analytical Chemistry, 2015An inexpensive hand-held device for analysis of colorimetric sensor arrays (CSAs) has been developed. The device makes use of a contact image sensor (CIS), technology commonly used in business card scanners, to rapidly collect low-noise colorimetric data for chemical sensing. The lack of moving parts and insensitivity to vibration allow for lower noise
Jon R, Askim, Kenneth S, Suslick
openaire +2 more sources
Multidimensional colorimetric sensor array for discrimination of proteins
Biosensors and Bioelectronics, 2016An extensible multidimensional colorimetric sensor array for the detection of protein is developed based on DNA functionalized gold nanoparticles (DNA-AuNPs) as receptors. In the presence of different proteins, the aggregation behavior of DNA-AuNPs was regulated by the high concentrations of salt and caused different color change; while DNA-AuNPs grew ...
Jinpeng, Mao +5 more
openaire +2 more sources
The Optoelectronic Nose: Colorimetric and Fluorometric Sensor Arrays
Chemical Reviews, 2018A comprehensive review on the development and state of the art of colorimetric and fluorometric sensor arrays is presented. Chemical sensing aims to detect subtle changes in the chemical environment by transforming relevant chemical or physical properties of molecular or ionic species (i.e., analytes) into an analytically useful output.
Zheng Li +2 more
openaire +2 more sources
Identification of Nanoparticles with a Colorimetric Sensor Array
ACS Sensors, 2015A simple colorimetric sensor array technique was developed for the detection of various different nanoparticles (NPs) in aqueous solutions. The sensor array consists of five different cross-reactive chemoresponsive dyes, whose visible absorbances change in response to their interactions with NPs.
Morteza Mahmoudi +3 more
openaire +1 more source
Colorimetric sensor arrays for molecular recognition
Tetrahedron, 2004Abstract The development of colorimetric sensor arrays for the detection of volatile organic compounds is reported. Using an array of chemo-responsive dyes, enormous discriminatory power is created in a simple device that can imaged easily with an ordinary flat-bed scanner.
Kenneth S. Suslick +2 more
openaire +1 more source
A Colorimetric Sensor Array for Detection of Triacetone Triperoxide Vapor
Journal of the American Chemical Society, 2010Triacetone triperoxide (TATP), one of the most dangerous primary explosives, has emerged as an explosive of choice for terrorists in recent years. Owing to the lack of UV absorbance, fluorescence, or facile ionization, TATP is extremely difficult to detect directly.
Hengwei, Lin, Kenneth S, Suslick
openaire +2 more sources
Development and validation of a colorimetric sensor array for fish spoilage monitoring
Food Control, 2016 Given the need for non-destructive methods and sensors for food spoilage monitoring, we have evaluated sixteen chemo-sensitive compounds incorporated in an array for colorimetric detection of typical spoilage compounds (trimethylamine, dimethylamine ...
Kinga Zór +2 more
exaly +2 more sources
Colorimetric Sensor Arrays for the Analysis of Beers: A Feasibility Study
Journal of Agricultural and Food Chemistry, 2006Eighteen commercial beers have been analyzed in both liquid and gas phases using colorimetric sensor arrays made from selected chemically responsive dyes printed on a hydrophobic membrane. Digital imaging of the dye array before and after exposure to the complex analytes in either the liquid phase or the head-gas provides a color change profile as a ...
Chen, Zhang +2 more
openaire +2 more sources
Colorimetric Sensor Array for Qualitative Water Analysis
Australian Journal of Chemistry, 2009A chemosensor array comprising 45 off-the-shelf colorimetric dyes, dubbed the Singapore Tongue (SGT), that is capable of discriminating different brands of bottled water and waters of different geographical attribute is described. Twelve kinds of bottled waters were tested by the SGT, and changes of absorbance spectra were analyzed by unsupervised ...
Chan, Shu Ann +2 more
openaire +2 more sources