Results 71 to 80 of about 2,719,329 (156)

Yellow ZnxNi1-xWO4 pigments obtained using a polymeric precursor method

open access: yes, 2008
New tungstate-based ceramic pigments, displaying ZnxNi1-xWO4 stoichiometry, were obtained at low temperature using a polymeric precursor method. The powder precursors were milled in an attritor mill in an alcoholic rnedium and heat treated for 12 h ...
Maurera Maria Aldeiza, M. A.   +11 more
core   +1 more source

IDENTIFICATION OF NEW POLISH LINES OF CHENOPODIUM QUINOA (WILLD.) BY SPECTRAL ANALYSIS OF PIGMENTS AND A CONFIRMATION OF GENETIC STABILITY WITH SCOT AND RAPD MARKERS

open access: yesActa Scientiarum Polonorum: Hortorum Cultus, 2018
Identification of cultivars is essential both in breeding and to settle cultivar disputes. The purpose of the study has been to examine cultivar identities based on absorption spectra of plant pigments and to confirm a genetic stability with SCoT and ...
Justyna Lema-Rumińska   +2 more
doaj   +1 more source

Integrated X-ray fluorescence and diffuse visible-to-near-infrared reflectance scanner for standoff elemental and molecular spectroscopic imaging of paints and works on paper

open access: yesHeritage Science, 2018
Prior studies have shown the improved ability to identify artists’ pigments by combining results from X-ray fluorescence (XRF), which provides elemental information, with reflectance spectroscopy in the visible to near infrared (400–1000 nm) that ...
John K. Delaney   +5 more
doaj   +1 more source

Identification of a Red Pigment-Producing Strain of Arthrobacter spp. and the Stability of Its Pigments

open access: yesMicroorganisms
With the rise of environmental protection and health topics in recent years, microbial production of red pigments has gradually become a research hotspot. Red pigment possesses biological properties such as anticancer and antioxidant activities and has a wide range of potential applications in the fields of food and medicine.
Jinjun Wang, Mingliang Yang, Xinru Gao
openaire   +3 more sources

Analysis of Micro-Fine Mineral Pigments Based on Laser Raman Spectroscopy

open access: yesYankuang ceshi
Micro-fine pigment minerals have been widely used in artworks, and their particle size, types, etc. determine the quality. Accurate and non-destructive analysis of the composition and distribution of micro-mineral pigments is of great significance.
Wei ZHU, Wenjing XU, Aiguo SHEN
doaj   +1 more source

Enzymatic Identification of the Anthocyanin Pigment of Blackberry [PDF]

open access: yesNature, 1956
Karrer and Pieper reported in 1930 that the principal pigment of blackberry, Rubus fructicosus L., was either identical or isomeric with chrysanthemin or cyanidin-3-β-monoglucoside1. They obtained compact polyhedral rhombs of a pigment chloride which was indistinguishable in colour properties from an authentic sample of chrysanthemin chloride, and ...
openaire   +1 more source

Chemically Responsive Nanoporous Pigments: Colorimetric Sensor Arrays and the Identification of Aliphatic Amines

open access: yes, 2016
A general method has been developed for the preparation of microspheres of nanoporous pigments, their formulation into chemically responsive pigment inks, and the printing of these inks as colorimetric sensor arrays. Using an ultrasonic-spray aerosol−gel
Jin Ho Bang (1364364)   +3 more
core   +1 more source

Scientific investigation by technical photography, OM, ESEM, XRF, XRD and FTIR of an ancient Egyptian polychrome wooden coffin

open access: yesConservar Património, 2017
The focus of this study is to use a multi-analytical approach to map and identify the pigments used on a polychrome wooden coffin (Late Period), as well as to provide a deeper understanding of the painting techniques and the condition of the object ...
Ahmed Abdrabou   +2 more
doaj   +1 more source

Interpretation of Absorption Bands in Airborne Hyperspectral Radiance Data

open access: yesSensors, 2009
It is demonstrated that hyperspectral imagery can be used, without atmospheric correction, to determine the presence of accessory phytoplankton pigments in coastal waters using derivative techniques.
W. David Miller   +3 more
doaj   +1 more source

Identification of Pigment Cell Antigens Defined by Vitiligo Antibodies

open access: yesJournal of Investigative Dermatology, 1992
Patients with vitiligo have circulating antibodies to pigment cells. To characterize this response further and to identify the antigens defined by vitiligo antibodies, sera of 23 patients with vitiligo and 22 patients with unrelated conditions were analyzed by immunoprecipitation and SDS-PAGE analysis of 125I-labeled cell antigens on pigment and ...
Cui, Jian   +3 more
openaire   +2 more sources

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