Results 11 to 20 of about 1,867 (199)

Relation between colour- and phase changes of a leuco dye-based thermochromic composite. [PDF]

open access: yesSci Rep, 2018
AbstractReversible colour change of leuco dye-based composites is in general closely related to their phase change, thus the two phenomena should occur at around the same temperature and should be influenced similarly. However, spatial confinement of the analysed sample affects the change in colour differently compared to its phase transition and the ...
Bašnec K   +7 more
europepmc   +4 more sources

The Effect of Temperature on Thermochromic Leuco Dyes: A Meta-Analysis

open access: yesJournal of Applied Agricultural Science and Technology
The effect of temperature treatment, either increasing or decreasing the temperature of leuco dyes, can produce thermochromic by looking at the changing color of samples resulting from experiments. The colors that are seen namely brightness (L), a* value,
Endang Warsiki   +5 more
doaj   +2 more sources

AROMATIC ALDEHYDE-LEUCO DYE PHOTOXIDATION

open access: yesPure and Applied Chemistry, 1977
Tris (dimethylaminophenyl) methane leuco dyes undergo rapid photoxidation together with aromatic aldehydes. Quantum yields for dye formation in film media are ~750. A practical photoimaging system based on this chemistry was developed. The chemical aspects of sensitization, achievement of dark stability, and the rendering of the films photo-insensitive
H.D. Hartzler
openaire   +2 more sources

Use of Leuco-Dyes in the Quantitative Colorimetric Microdetermination of Hemoglobin and Other Heme Compounds

open access: yesClinical Chemistry, 1975
Abstract Sensitivity, stability, and specificity of the color-producing reaction of hydrogen peroxide with benzidine, leucomalachite green, or o-dianisidine were tested in numerous systems containing hemoglobin and other hemoproteins.
D A, Ahlquist, S, Schwartz
openaire   +3 more sources

Leuco-Based Composite Resin Dosimeter Film

open access: yes, 2019
A polystyrene (PS)-based composite resin dosimeter (CRD) film comprising 2-(phenylamino)-6-(dipentylamino)-3-methylspiro­[9H-xanthene-9,3′-phthalide] (Black305) fluoran leuco dye, cerium-doped yttrium aluminum perovskite YAlO3:Ce (YAP:Ce) scintillator ...
Naoto Tsutsumi   +11 more
core   +2 more sources

Microbial Degradation, Spectral analysis and Toxicological Assessment of Malachite Green Dye by Streptomyces exfoliatus

open access: yesMolecules, 2022
Malachite green (MG) dye is a common environmental pollutant that threatens human health and the integrity of the Earth’s ecosystem. The aim of this study was to investigate the potential biodegradation of MG dye by actinomycetes species isolated from ...
Samah H. Abu-Hussien   +10 more
doaj   +1 more source

Thermochromic effects of leuco dyes studied in polypropylene

open access: yes, 2022
S.363-368A series of thermochromic polypropylene foils were prepared by embedding various leuco dye-developer-solvent systems in the polymer matrix. Bisphenol A, laurylgallate, ethylgallate and p-hydroxybenzoic acid methyl ester were used as developers ...
Seeboth, A.   +3 more
core   +1 more source

Feasibility of a Reusable Radiochromic Dosimeter

open access: yesApplied Sciences, 2021
The current practice for patient-specific quality assurance (QA) uses ion chambers or diode arrays primarily because of their ease of use and reliability.
Joseph R. Newton   +6 more
doaj   +1 more source

Detection of therapeutic radiation in three-dimensions

open access: yesBeilstein Journal of Organic Chemistry, 2017
For over the last twenty years there has been a multitude of sophisticated three-dimensional radiation delivery procedures developed which requires a corresponding verification of the impact on patients.
John A. Adamovics
doaj   +1 more source

The Effect of UV Exposure on the Service-life of Thermochromic Microcapsules Integrated into the Epoxy Matrix

open access: yesMedžiagotyra, 2022
The effect of ultraviolet (UV) exposure on the service-life of thermochromic microcapsules integrated into the epoxy matrix was investigated. The microcapsules of the formaldehyde shell contain the core of thermochromic leuco dye.
Olga BULDERBERGA, Andrey ANISKEVICH
doaj   +1 more source

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