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Title: Analytical and Microbiological Study of two 19th Century Ambrotypes
Authors: Nunes, M.
Miguel, C.
Caldeira, A.T.
Ferreira, T.
Editors: Albuquerque, Sara
Ferreira, Teresa
Nunes, Maria de Fátima
Cardoso Matos, Ana
Candeias, António
Keywords: ambrotypes
19th century
degradation patterns
chemical characterization
morphological characterization
Issue Date: 2018
Publisher: Sílabas & Desafios
Citation: M. Nunes, C. Miguel, A. T. Caldeira & T. Ferreira, Analytical and Microbiological Study of two 19th Century Ambrotypes in Web of Knowledge | A Look into the Past, Embracing the Future, Editors: Sara Albuquerque, Teresa Ferreira, Maria de Fátima Nunes, Ana Cardoso de Matos & António Candeias, Sílabas & Desafios, 2018, pp. 129-133. eBook ISBN: 978-989-8842-41-1
Abstract: The study here presented aimed to characterize two ambrotypes from the 19th century and some of their degradation patterns using an in-situ analytical approach, minimally invasive, composed by technical photography and optical microscopy under different illumination, scanning electron microscopy with energy dispersive spectroscopy coupled (SEM-EDS) and micro-Fourier transform infrared spectroscopy (μ-FT-IR). Microbiological colonization was evaluated, and the enzymatic activity of isolated fungal strains was tested. One ambrotype was produced on a ruby glass containing manganese while bitumen was used for the background on the other. Retouching of jewellery with a gold-based ink was investigated. Both ambrotypes presented several patterns of physical and chemical degradation probably due to inappropriate handling and storage.
ISBN: 978-989-8842-41-1
Type: article
Appears in Collections:QUI - Artigos em Livros de Actas/Proceedings
HERCULES - Artigos em Livros de Actas/Proceedings

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