Singling Out the Electrochemiluminescence Profile in Microelectrode Arrays.

ABSTRACT: Among various electrochemical imaging techniques, electrochemiluminescence microscopy (ECLM) stands out as a powerful approach to visualize electrochemical reactions by converting localized reactivity into optical signals. This study investigates ECL light emission spatial distribution in a confined space by using microelectrode arrays (MEAs) fabricated on glassy carbon (GC) and gold (Au) substrates via thermal nanoimprint lithography (TNIL). With the Ru-(bpy)₃ ^{2 +}/TPrA system, ECL imaging revealed distinct emission profiles, with Au exhibiting a broader spatial distribution compared to GC under identical geometric conditions. The estimated thickness of the ECL emitting layer (TEL) was significantly larger on Au (∼7 μm) than on GC (∼4 μm), attributed to the

SUBMITTER: Mariani C 

PROVIDER: S-EPMC12308587 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature