Customizable ligand exchange on the surface of gold nanotriangles enables their application in LSPR-based sensing.

ABSTRACT: Nanomaterials made of noble metals have been actively utilized in sensorics and bioanalytics. Nanoparticles of anisotropic shapes are promising for increasing sensitivity due to the generated hotspots of electron density. Such structures can be effectively manufactured by a relatively accessible colloidal synthesis. However, the shape control requires the attachment of a surfactant on specific crystal facets during their growth. Commonly used cetrimonium halides form a closely packed bilayer, lowering the surface accessibility for subsequent (bio)functionalization steps. While there are numerous studies on functionalizing gold nanospheres, novel materials, such as nanotriangles (AuNTs), often require thorough studies to adapt the existing procedures. This is mainly caused by the incomplete

SUBMITTER: Podlesnaia E 

PROVIDER: S-EPMC11375502 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature