Results 21 to 30 of about 64,372 (396)

FALLACIES IN COLORIMETRY. [PDF]

open access: yesJournal of the American Chemical Society, 1917
n ...
openaire   +3 more sources

Daylight Spectrum Index: A New Metric to Assess the Affinity of Light Sources with Daylighting [PDF]

open access: yes, 2018
The current scenario of colorimetry shows a wide variety of different metrics which do not converge in the assessment of the color rendering of light sources.
Acosta García, Ignacio Javier   +2 more
core   +1 more source

Highly Selective, Aptamer-Based, Ultrasensitive Nanogold Colorimetric Smartphone Readout for Detection of Cd(II)

open access: yesMolecules, 2019
A highly selective and sensitive method for Cd(II) detection was developed based on aptamer and gold nanoparticles (AuNPs) combined with a colorimetric smartphone readout.
Lu Xu   +6 more
doaj   +1 more source

Combination of carbon nanotubes and two-photon absorbers for broadband optical limiting [PDF]

open access: yes, 2004
New systems are required for optical limiting against broadband laser pulses. We demonstrate that the association of non-linear scattering from single-wall carbon nanotubes (SWNT) and multiphoton absorption (MPA) from organic chromophores is a promising ...
C. Mioskowski   +18 more
core   +4 more sources

Synthesis of Vanillin-Azine as Colorimetric Chemosensor of Sulfide Anion

open access: yesIndonesian Journal of Chemistry, 2022
Vanillin-azine (VA), (4,4'-((1E,1'E)-hydrazine-1,2-diylidenebis(methane-lylidene))bis(2-methoxyphenol) has been synthesized from vanillin and tested as anion colorimetric chemosensors for sulfide anion.
Nevi Faizatu Rokhmah   +2 more
doaj   +1 more source

Genome-Wide Association Study and Pathway-Level Analysis of Kernel Color in Maize. [PDF]

open access: yes, 2019
Rapid development and adoption of biofortified, provitamin A-dense orange maize (Zea mays L.) varieties could be facilitated by a greater understanding of the natural variation underlying kernel color, including as it relates to carotenoid biosynthesis ...
Diepenbrock, Christine H   +7 more
core   +2 more sources

Highly Sensitive Colorimetric Biosensor for Staphylococcal Enterotoxin B by a Label-Free Aptamer and Gold Nanoparticles

open access: yesFrontiers in Microbiology, 2018
A simple, sensitive and selective colorimetric biosensor for the detection of Staphylococcal enterotoxin B (SEB) was developed using SEB-binding aptamer (SEB2) as recognition element and unmodified gold nanoparticles (AuNPs) as colorimetric probes.
Bhairab Mondal   +4 more
doaj   +1 more source

Anthracycline-Functionalized Dextran as a New Signal Multiplication Tagging Approach for Immunoassay

open access: yesBiosensors, 2023
The most used kind of immunoassay is enzyme-linked immunosorbent assay (ELISA); however, enzymes suffer from steric effects, low stability, and high cost.
Fatema Kaladari   +4 more
doaj   +1 more source

Evaluation of streamwater composition changes in the Vosges Mountains (NE France): 1955–2005 [PDF]

open access: yes, 2009
n 1995, in the southwestern Vosges Mountains (NE France), 158 of 395 streams (40%) had a pH lower than 5.5 at baseflow. As elsewhere in Europe, acid deposition has decreased since the seventies, as has base cation deposition.
Angéli, Nicolas   +9 more
core   +4 more sources

A Non-Invasive and Sustainable Characterization of Pigments in Wall Paintings: A Library of Apulian Colors

open access: yesHeritage, 2023
This paper proposed a multianalytical, non-invasive, accessible and expensive (compared to traditional ones) approach for the characterization of pictorial surfaces. A set of 18 pigments and 37 mixtures widely used in the Middle Ages in the Apulia (Italy)
Giovanna Fioretti   +6 more
doaj   +1 more source

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