Light and colour effects on gold nanoparticles

Abstract

A literature review has been made for this final degree project about gold nanoparticles (AuNPs). They are first introduced by describing the metallic nanoparticles, and then the different properties and characteristics that make AuNPs unique thanks to their nanometer-size, studying deeply the “Surface Plasmon Resonance”. On the other hand, it has also been considered important to study their synthesis and their different applications, especially in the biomedical field. Special emphasis has been placed on the use of these nanoparticles as colorimetric reagents and the effects of light on AuNPs in radiotherapy, explained in the “results and discussion” section. To conclude are cited new advances that have been studied nowadays, among which the use of AuNPs in tests for Covid-19 stands out.