by electrode reactions and enhanced by ethylenediamine tetraacetic acid (EDTA). The
enhancement effect is higher at pH 7.4 than at more basic or acidic pHs. Magnesium ions
are found to modulate the ECL signals through complexation with EDTA and the interaction
with the Au nanoclusters. The chemical system and the signal modulation mechanism are
believed to be generalizable and advantageous for future sensing and analysis applications …