João A Lopes
Biographic Data
| ID | 6668467 |
|---|---|
| NAME | João A Lopes |
| GIVEN NAMES | João A |
| FAMILY NAME | Lopes |
| SIGNATURE | LOPES J A |
| AFFILIATIONS | University of Lisbon |
| ORCID | 0000-0002-1657-344X |
| VERIFIED | Yes |
| TOTAL WORKS | 5 |
| TOTAL CITATIONS | 1 |
| WORKS AS AUTHOR | 5 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 2019 |
| LATEST PUBLICATION YEAR | 2024 |
| H-INDEX | 1 |
The Colors in Medieval Illuminations through the Magnificent Scriptorium of Alfonso X, the Learned
This pioneering work studied the medieval color palette of four manuscripts produced in the scriptorium of Alfonso X, king of the Crown of Castile (r. 1252-84), including the Songs of Holy Mary (Cantigas de Santa Maria, in Rich Codex and Musicians’ Codex), Lapidary (Lapidario), and Book of Games (Libro de los juegos). Scientific analysis based on fiber-optics reflectance spectroscopy in the visible and Raman spectroscopy showed a color palette ba…
On the use of in-situ spectroscopic techniques for the study of the provenance of historic ivories
Iron(III) based Metal-Organic Frameworks in cellulose acetate film preservation
Low-temperature storage to slow down degradation is accepted by the film conservation community. Still, this solution prohibits public access, is price-sensitive, has high energy costs, and there are concerns about their effects on the physical stability and material lifetime. In this research, a smart solution is developed based on the selective capture of acetic acid produced by the cellulose acetate polymer. This innovative approach is based o…
Characterization of Fungal Melanins from Black Stains on Paper Artefacts
Melanins play a fundamental role in the biology and ecology of several fungal species. Unfortunately, this group of amorphous macromolecules also severely (and most times irreversibly) stains cultural heritage objects. Despite efforts made throughout the years, knowledge of the chemical composition and structure of melanins is still insufficient, which hampers the task of safely cleaning these colourants from cultural heritage materials in a targ…
Stains versus colourants produced by fungi colonising paper cultural heritage
The Colors in Medieval Illuminations through the Magnificent Scriptorium of Alfonso X, the Learned
This pioneering work studied the medieval color palette of four manuscripts produced in the scriptorium of Alfonso X, king of the Crown of Castile (r. 1252-84), including the Songs of Holy Mary (Cantigas de Santa Maria, in Rich Codex and Musicians’ Codex), Lapidary (Lapidario), and Book of Games (Libro de los juegos). Scientific analysis based on fiber-optics reflectance spectroscopy in the visible and Raman spectroscopy showed a color palette ba…
Stains versus colourants produced by fungi colonising paper cultural heritage
Characterization of Fungal Melanins from Black Stains on Paper Artefacts
Melanins play a fundamental role in the biology and ecology of several fungal species. Unfortunately, this group of amorphous macromolecules also severely (and most times irreversibly) stains cultural heritage objects. Despite efforts made throughout the years, knowledge of the chemical composition and structure of melanins is still insufficient, which hampers the task of safely cleaning these colourants from cultural heritage materials in a targ…
The Colors in Medieval Illuminations through the Magnificent Scriptorium of Alfonso X, the Learned
This pioneering work studied the medieval color palette of four manuscripts produced in the scriptorium of Alfonso X, king of the Crown of Castile (r. 1252-84), including the Songs of Holy Mary (Cantigas de Santa Maria, in Rich Codex and Musicians’ Codex), Lapidary (Lapidario), and Book of Games (Libro de los juegos). Scientific analysis based on fiber-optics reflectance spectroscopy in the visible and Raman spectroscopy showed a color palette ba…
On the use of in-situ spectroscopic techniques for the study of the provenance of historic ivories
Iron(III) based Metal-Organic Frameworks in cellulose acetate film preservation
Low-temperature storage to slow down degradation is accepted by the film conservation community. Still, this solution prohibits public access, is price-sensitive, has high energy costs, and there are concerns about their effects on the physical stability and material lifetime. In this research, a smart solution is developed based on the selective capture of acetic acid produced by the cellulose acetate polymer. This innovative approach is based o…
Cultural Heritage Materials Analysis (4 works) · Building materials and conservation (3 works) · Chemistry (3 works) · Conservation Techniques and Studies (3 works) · Archaeology (2 works) · Art (2 works) · Biology (2 works) · Botany (2 works) · History (2 works) · Materials Science (2 works)