The Wh/2 evolution was determined over time in order to track
possible changes to the AgNPs surface, including adsorption–desorption
of different species and oxidation layer formation (Fig. S6a–b and
Videos S1–S2). The Wh/2 values obtained at [NaCl] = 31 mM showed
a decrease relative to those observed in the absence of NaCl. The SPRB
Fig.