°C and 4 °C stability analyzes, short-term size stability
at 37 °C was monitored as a part of the cytotoxicity study, and
the results are presented elsewhere.17 (link) Also,
for selected representative vials, electrophoretic mobility and zeta
potential were measured on formulations 10-fold diluted in water by
mixed mode measurement phase analysis light scattering using a Zetasizer
Nano ZS.20 (link) Finally, the pH of the undiluted
formulations was monitored at room temperatures using an Accumet pH
meter and a micro probe (Fisher Scientific, Canada).