IDENTIFICATION OF COEXISTING INDIGO SPECIES IN AN ANCIENT GREEN THREAD USING DIRECT PLASMON-ENHANCED RAMAN SPECTROSCOPY

IDENTIFICATION OF COEXISTING INDIGO SPECIES IN AN ANCIENT GREEN THREAD USING DIRECT PLASMON-ENHANCED RAMAN SPECTROSCOPY

ABSTRACT A green ancient thread sample from a Chilean mummy turban was analyzed by plasmon-enhanced Raman scattering spectroscopy using a direct drop-colloidal method. The enhanced-Raman signals in the sample are associated with biomolecules from the thread and two coexisting dyes, indigo and leuco-...

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Autores principales: Celis,Freddy, Tirapegui,Cristian, García,Macarena, Aracena,Andrés, Aliaga,Álvaro. E., Campos-Vallette,Marcelo
Lenguaje:English
Publicado: Sociedad Chilena de Química 2020
Materias:
Ancient thread
Indigo
Leuco-Indigo
Raman
SERS
Acceso en línea:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072020000204798
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