Spatially resolved electrochemiluminescence through a chemical lens.

ABSTRACT: Electrochemiluminescence (ECL) microscopy is an emerging technique with a wide range of imaging applications and unique properties in terms of high spatial resolution, surface confinement and favourable signal-to-noise ratio. Despite its successful analytical applications, tuning the depth of field (i.e., thickness of the ECL-emitting layer) is a crucial issue. Indeed, the control of the thickness of this ECL region, which can be considered as an "evanescent" reaction layer, limits the development of cell microscopy as well as bioassays. Here we report an original strategy based on chemical lens effects to tune the ECL-emitting layer in the model [Ru(bpy)₃]²⁺/tri-n-propylamine (TPrA) system. It consists of microbeads decorated with [Ru(bpy)₃]<

SUBMITTER: Fiorani A 

PROVIDER: S-EPMC8162283 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature