“Upon mixing with water, Q-SNEDDS formed a nanoemulsion having a droplet size of 208.… ± 4.5 nm and zeta potential of -26.3 ± 1.2 mV. The presence of Tween® 80 and PEG 400 increased quercetin solubility and maintained supersaturated quercetin concentrations (5 mg/mL) for >1 month.”