6533b830fe1ef96bd1296672

RESEARCH PRODUCT

From Maya Blue to “Maya Yellow”: A Connection between Ancient Nanostructured Materials from the Voltammetry of Microparticles

Antonio DoménechMaría Teresa Doménech-carbóMaría Luisa Vázquez De ÁGredos-pascual

subject

Palygorskitesmedia_common.quotation_subjectVoltammetry of microparticlesMineralogyCatalysisUV/ Vis spectroscopyPhyllosilicateSEM/EDXMayaIndigoid dyesDyesmedia_commonArchaeological siteNanostructured materialsGeneral ChemistryArtGeneral MedicineMaya yellowWall paintingsClay mineralsMaya bluePINTURAVoltammetryDyes/pigmentsHumanities

description

The yellow hue of a series of samples from wall paintings in several Mayan archaeological sites can be attributed to the presence of indigoid compounds, including isatin and dehydroindigo, attached to palygorskite, a local phyllosilicate clay. SEM/EDX, TEM, UV/Vis spectroscopy, and voltammetry of microparticles show that the ancient Mayas could prepare indigo, Maya Blue, and "Maya Yellow" during successive stages. Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

https://doi.org/10.1002/ange.201100921