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The Degradation of Daguerreotypes and the Relationship with Their Multi-Material Structure: A Multimodal Investigation

Preserving and analytically examining daguerreotypes is particularly challenging because of their multi-material and multi-component structure. Various sensors have been exploited to examine mainly the image plates of the daguerreotypes even though the degradation goes beyond this component. Micro-a...

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Autores principales: Quintero Balbas, Diego, Cattaneo, Barbara, Cagnini, Andrea, Belluzzo, Paolo, Rossi, Sandra, Fontana, Raffaella, Striova, Jana
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10181581/
https://www.ncbi.nlm.nih.gov/pubmed/37177544
http://dx.doi.org/10.3390/s23094341
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author Quintero Balbas, Diego
Cattaneo, Barbara
Cagnini, Andrea
Belluzzo, Paolo
Rossi, Sandra
Fontana, Raffaella
Striova, Jana
author_facet Quintero Balbas, Diego
Cattaneo, Barbara
Cagnini, Andrea
Belluzzo, Paolo
Rossi, Sandra
Fontana, Raffaella
Striova, Jana
author_sort Quintero Balbas, Diego
collection PubMed
description Preserving and analytically examining daguerreotypes is particularly challenging because of their multi-material and multi-component structure. Various sensors have been exploited to examine mainly the image plates of the daguerreotypes even though the degradation goes beyond this component. Micro-analyses have been the preferred method due to the nanoscale structure of the image particles. In this work, we propose comprehensive multi-modal non-invasive sensing to investigate the corrosion products present in nine daguerreotypes from the Fondazione Alinari per la Fotografia (FAF, Florence, Italy). The methodology proposed includes chemical and morphological analyses: portable X-ray fluorescence spectrometry (pXRF), Raman microspectroscopy (μ-Raman), and micro-Fourier transform infrared spectroscopy in reflection mode (μ-rFTIR) for the chemical identification. For the first time, optical coherence tomography (OCT) was deployed to record the cross-sectional and morphological data of the relevant corrosion formations on daguerreotypes in a contactless way. The results allowed the characterization, in a non-invasive mode at a microscopic level, of a wide range of degradation products produced by the interaction of the different elements present in the structure of the daguerreotypes. The aim was to verify the performance of the proposed methodology and to link the chemical and physical complexity of the entire structure, disclosed by the state-of-art sensors, to the daguerreotype degradation. The results draw attention to the need to monitor not only the image condition but the whole object as a partially closed system in constant interaction internally and with the environment.
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spelling pubmed-101815812023-05-13 The Degradation of Daguerreotypes and the Relationship with Their Multi-Material Structure: A Multimodal Investigation Quintero Balbas, Diego Cattaneo, Barbara Cagnini, Andrea Belluzzo, Paolo Rossi, Sandra Fontana, Raffaella Striova, Jana Sensors (Basel) Article Preserving and analytically examining daguerreotypes is particularly challenging because of their multi-material and multi-component structure. Various sensors have been exploited to examine mainly the image plates of the daguerreotypes even though the degradation goes beyond this component. Micro-analyses have been the preferred method due to the nanoscale structure of the image particles. In this work, we propose comprehensive multi-modal non-invasive sensing to investigate the corrosion products present in nine daguerreotypes from the Fondazione Alinari per la Fotografia (FAF, Florence, Italy). The methodology proposed includes chemical and morphological analyses: portable X-ray fluorescence spectrometry (pXRF), Raman microspectroscopy (μ-Raman), and micro-Fourier transform infrared spectroscopy in reflection mode (μ-rFTIR) for the chemical identification. For the first time, optical coherence tomography (OCT) was deployed to record the cross-sectional and morphological data of the relevant corrosion formations on daguerreotypes in a contactless way. The results allowed the characterization, in a non-invasive mode at a microscopic level, of a wide range of degradation products produced by the interaction of the different elements present in the structure of the daguerreotypes. The aim was to verify the performance of the proposed methodology and to link the chemical and physical complexity of the entire structure, disclosed by the state-of-art sensors, to the daguerreotype degradation. The results draw attention to the need to monitor not only the image condition but the whole object as a partially closed system in constant interaction internally and with the environment. MDPI 2023-04-27 /pmc/articles/PMC10181581/ /pubmed/37177544 http://dx.doi.org/10.3390/s23094341 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Quintero Balbas, Diego
Cattaneo, Barbara
Cagnini, Andrea
Belluzzo, Paolo
Rossi, Sandra
Fontana, Raffaella
Striova, Jana
The Degradation of Daguerreotypes and the Relationship with Their Multi-Material Structure: A Multimodal Investigation
title The Degradation of Daguerreotypes and the Relationship with Their Multi-Material Structure: A Multimodal Investigation
title_full The Degradation of Daguerreotypes and the Relationship with Their Multi-Material Structure: A Multimodal Investigation
title_fullStr The Degradation of Daguerreotypes and the Relationship with Their Multi-Material Structure: A Multimodal Investigation
title_full_unstemmed The Degradation of Daguerreotypes and the Relationship with Their Multi-Material Structure: A Multimodal Investigation
title_short The Degradation of Daguerreotypes and the Relationship with Their Multi-Material Structure: A Multimodal Investigation
title_sort degradation of daguerreotypes and the relationship with their multi-material structure: a multimodal investigation
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10181581/
https://www.ncbi.nlm.nih.gov/pubmed/37177544
http://dx.doi.org/10.3390/s23094341
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