TITLE:
Colloid Thin-Layer Chromatography: A Tool for Gold Sols Validation before Used in Application
AUTHORS:
Jingjie Luo, Caroline Bertagnolli, Pierre Petit, Corinne Petit
KEYWORDS:
Gold, Colloid, Nanoparticle, Aggregation, Turkevich
JOURNAL NAME:
Journal of Materials Science and Chemical Engineering,
Vol.9 No.9,
September
26,
2021
ABSTRACT: Gold nanoparticles have been increasingly used in catalysis, biomedical imaging, biological and chemical sensing, drug delivery, etc. In this study, a straightforward method that allows one to monitor the synthesis of gold sols and their aging, before their fine characterization by sophisticated techniques and before their use is described. Indeed, the “Colloid Thin-Layer Chromatography” method allows one to check the quality of gold colloidal sols during the synthesis. It is also well adapted for monitoring the aging of the sol before the visual observation of its degradation.