Results 91 to 100 of about 1,547 (180)
, 2019 International audienceNeurofibrillary tangles of the Tau protein and plaques of the amyloid β peptide are hallmarks of Alzheimer's disease (AD), which is characterized by the conversion of monomeric proteins/peptides into misfolded β-sheet rich fibrils ...
Segal, Daniel +12 more
core +1 more source
Electronic transitions of the purpurin dye:UV-Vis polarization spectroscopy and quantum chemical predictions. [PDF]
Purpurin (1,2,4-trihydroxy-9,10-anthraquinone) is investigated by Synchrotron Radiation Linear Dichroism (SRLD) spectroscopy using stretched polyethylene as an anisotropic solvent, covering the range 58,000–15,000 cm–1 (172–670 nm).
Vrønning Hoffmann, Søren +3 more
core +1 more source
Growth media-dependent suppression of Candida albicans hyphal development by purpurin
, 2014 OBJECTIVES: To investigate the effect of growth media on the inhibitory activity of purpurin on hyphal growth in Candida albicans. METHODS: Four growth media that promote hyphal growth in Candida albicans SC5314 were used in this study.
Tsang, PWK +5 more
core +2 more sources
Treatment of hydroxyquinone-containing wastewater using precipitation method with barium salt
Water Science and Engineering, 2019 Hydroxyquinone compounds, such as 1,4-dihydroxyanthraquinone and alizarin sulfonate, are widely used in dye manufacturing, pharmaceutical manufacturing, and other industries.
Qun-chao Wang, Shu-gen Liu, Hua-ping Gao
doaj +1 more source
Synthesis of molecular photoconverting systems based on tetraphenylporphyrin and purpurin 18
Тонкие химические технологии, 2010 Donor-acceptor systems based on 5-(p-aminophenyl)-10,15,20-triphenylporphyrin, purpurin 18 and 2-(2-hydroxyethyl)thio-3-methyl-1,4-naphthoquinone were synthesized to simulate the natural photoconverting systems. Their spectral properties were studied.
N. V. Konovalova +2 more
doaj
A kinetic determination of lysine in pharmaceutical sample [PDF]
Journal of the Serbian Chemical Society, 2002 Akinetic method for the determination of micro quantities of the amino acid lysine (Lys) is described in this paper. The catalytic activity of cobalt in the reaction of the oxidation of purpurin (1,2,4-trihydroxyanthraquinone, PP) by hydrogen peroxide in
S. B. TOSIC +3 more
doaj
Effect of purpurin on intracellular ROS levels.
, 2013 C. dubliniensis biofilms were treated with different concentrations of purpurin (from 1 µg/ml to 10 µg/ml), and intracellular ROS levels were determined using DCFDA. Fluorescence intensity was measured at 485 nm excitation and 535 nm emission.
Paul Wai-Kei Tsang (296474) +3 more
core +1 more source
, 1993 Reactions of purpurin-18 methyl ester 6 with various nucleophiles have been investigated as a means for synthesis of sensitizers for use in photodynamic therapy of tumours.
N. JAGEROVIC +5 more
core +1 more source
, 1999 The effect of extraction method on the recovery of alizarin and purpurin from roots of Rubia tinctorum L. was investigated. Alizarin and purpurin contents in Turkish Madder collected from various regions of Anatolia have been determined quantitatively by
Bozan, Berrin +4 more
core