Results 171 to 180 of about 1,759 (195)
Understanding the structural degradation of South American historical silk: A Focal Plane Array (FPA) FTIR and multivariate analysis. [PDF]
Sci Rep, 2019 Badillo-Sanchez D +4 more
europepmc +1 more source
Brazilin is a natural product inhibitor of the NLRP3 inflammasome. [PDF]
iScienceMcMahon E +13 more
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Historical Perspectives on Western Ethnobotanical Collections [PDF]
, 2014 Cornish, Caroline, Nesbitt, Mark
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Brazilwood Reds: The (Photo)Chemistry of Brazilin and Brazilein
The Journal of Physical Chemistry A, 2013The ground and excited state (in the singlet state, S1) acid–base equilibria, together with the photophysical properties of the two main constituents of brazilwood, brazilin and brazilein, have been investigated in aqueous solutions in the pH range: −1 < pH < 10.
Raquel, Rondão +5 more
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A Spectroscopic Study of Brazilwood Paints in Medieval Books of Hours
Applied Spectroscopy, 2014 In this work, microspectrofluorimetry was for the first time applied to the identification of the red organic lakes that are characteristic of the lavish illuminations found in 15th century books of hours. Microspectrofluorimetry identified those red paints, ranging from opaque pink to dark red glazes, as brazilwood lakes.
Maria João Melo +6 more
openalex +5 more sources
Fourier-transform Raman characterization of brazilwood trees and substitutes
The Analyst, 2002In this work we have applied Fourier-transform Raman spectroscopy to the analysis of several archival samples of brazilwoods from different geographical origins and of different ages. Samples of Caesalpinia echinata Lam. (from Brazil, South America), Caesalpinia sappan L.
Howell G M, Edwards +2 more
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Protoplasma, 2022 Paubrasilia echinata (brazilwood) is an endangered native tree from the Brazilian Atlantic Forest whose seeds tolerate maturation drying, but, unlike classic orthodox seeds, they quickly lose viability after shedding. This work analyzed the biochemical and ultrastructural changes during the maturation of brazilwood seeds, with particular attention to ...
Tatiana Botelho Mescia +5 more
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Ageing of brazilwood dye in wool – a chromatographic and spectrometric study
Journal of Cultural Heritage, 2012 Abstract Brazilwood was used in this work to dye wool mordanted with different amounts of copper(II) sulfate, alum and iron(II) sulfate. Two different dyeing methods were used: premordanting (MD) and simultaneous mordanting (M+D) procedures. In order to evaluate the influence of the mordant ion in the brazilein chromophore photodegradation, samples ...
Ana Manhita +5 more
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International Biodeterioration & Biodegradation, 2007
The heartwood of Caesalpinia echinata Lam. (Leguminosae) (commonly called brazilwood) is used for violin bow manufacture due to the unique vibrational and physical properties found in the wood. In the present work, the effects of Pycnoporus sanguineus (white-rot fungus), Gloeophyllum trabeum (brown-rot fungus), Chaetomium globosum (soft-rot fungus ...
Richter, Andreas +5 more
openaire +2 more sources
The heartwood of Caesalpinia echinata Lam. (Leguminosae) (commonly called brazilwood) is used for violin bow manufacture due to the unique vibrational and physical properties found in the wood. In the present work, the effects of Pycnoporus sanguineus (white-rot fungus), Gloeophyllum trabeum (brown-rot fungus), Chaetomium globosum (soft-rot fungus ...
Richter, Andreas +5 more
openaire +2 more sources