Gold nanoparticles in painted miniatures on ivory: Non-invasive evidence and characterisation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461446%3A_____%2F22%3AN0000017" target="_blank" >RIV/60461446:_____/22:N0000017 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.dyepig.2022.111015" target="_blank" >https://doi.org/10.1016/j.dyepig.2022.111015</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.dyepig.2022.111015" target="_blank" >10.1016/j.dyepig.2022.111015</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Gold nanoparticles in painted miniatures on ivory: Non-invasive evidence and characterisation

Popis výsledku v původním jazyce

To document the use of gold nanoparticles (also known as ˝Purple of Cassius˝ pigment) in miniature painting; seven 19th century portraits from Czech collections containing purple colour were studied. The research was performed non-invasively; as it was not possible to sample the small-sized and delicate paintings. Large area X-ray fluorescence scanning indicated the presence of Purple of Cassius in four paintings; while in the three of them; the desired shade was achieved by mixing red and blue pigments; for example vermillion and Prussian blue. The detected gold nanoparticles were characterised in detail by X-ray powder diffraction and via innovative use of environmental scanning electron microscopy. The obtained diffraction patterns enabled the calculation of average size of the particles; which equalled to 8-14 nm. Based on available historical recipes; the pigment preparation was replicated in laboratory; yielding analogous pigment with similar particle size. For the first time; Purple of Cassius was identified and characterised in portrait miniatures.

Název v anglickém jazyce

Gold nanoparticles in painted miniatures on ivory: Non-invasive evidence and characterisation

Popis výsledku anglicky

To document the use of gold nanoparticles (also known as ˝Purple of Cassius˝ pigment) in miniature painting; seven 19th century portraits from Czech collections containing purple colour were studied. The research was performed non-invasively; as it was not possible to sample the small-sized and delicate paintings. Large area X-ray fluorescence scanning indicated the presence of Purple of Cassius in four paintings; while in the three of them; the desired shade was achieved by mixing red and blue pigments; for example vermillion and Prussian blue. The detected gold nanoparticles were characterised in detail by X-ray powder diffraction and via innovative use of environmental scanning electron microscopy. The obtained diffraction patterns enabled the calculation of average size of the particles; which equalled to 8-14 nm. Based on available historical recipes; the pigment preparation was replicated in laboratory; yielding analogous pigment with similar particle size. For the first time; Purple of Cassius was identified and characterised in portrait miniatures.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

10406 - Analytical chemistry

Projekt

<a href="/cs/project/DG18P02OVV034" target="_blank" >DG18P02OVV034: Neinvazivní výzkum portrétních miniatur pro účely jejich datace, autentikace, prezentace a ochrany</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Dyes and Pigments

ISSN

18733743

e-ISSN

01437208

Svazek periodika

—

Číslo periodika v rámci svazku

210

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

10

Strana od-do

—

Kód UT WoS článku

000906604200001

EID výsledku v databázi Scopus

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