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%2F61388980%3A_____%2F23%3A00567425" target="_blank" >RIV/61388980:_____/23:00567425 - 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

—

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

2023

Kód důvěrnosti údajů

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

Název periodika

Dyes and Pigments

ISSN

0143-7208

e-ISSN

1873-3743

Svazek periodika

210

Číslo periodika v rámci svazku

FEB

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

10

Strana od-do

111015

Kód UT WoS článku

000906604200001

EID výsledku v databázi Scopus

2-s2.0-85144072224