Table 2.

Storage stability of CORM-2-UDLs at 4 and 25 °C for 28 days.

Day	Particle size (nm)		PDI		Zeta potential (mV)		Entrapment efficiency (%)
	4 °C	25 °C	4 °C	25 °C	4 °C	25 °C	4 °C	25 °C
0	100.9 ± 1.5	100.9 ± 1.5	0.087 ± 0.025	0.087 ± 0.025	42.7 ± 4.5	42.7 ± 4.5	31.5 ± 2.0	31.5 ± 2.0
1	99.8 ± 2.6	99.2 ± 2.9	0.059 ± 0.016	0.085 ± 0.016	45.2 ± 6.8	41.7 ± 2.6	31.4 ± 2.0	30.9 ± 2.6
3	98.1 ± 2.3	96.8 ± 3.6	0.087 ± 0.003	0.083 ± 0.028	42.2 ± 1.0	41.8 ± 1.6	30.5 ± 1.8	29.9 ± 1.9
7	100.3 ± 0.8	97.6 ± 3.5	0.085 ± 0.019	0.071 ± 0.007	46.3 ± 3.7	37.4 ± 4.6	30.1 ± 2.8	27.4 ± 2.0
14	99.0 ± 5.9	95.9 ± 2.4	0.077 ± 0.013	0.067 ± 0.010	45.2 ± 4.4	22.6 ± 1.7	29.0 ± 2.0	24.6 ± 3.3
21	97.9 ± 3.2	89.5 ± 3.2	0.077 ± 0.029	0.067 ± 0.002	45.1 ± 3.2	7.7 ± 1.3	28.0 ± 1.1	23.2 ± 3.9
28	99.2 ± 1.7	89.5 ± 4.3	0.067 ± 0.020	0.079 ± 0.021	40.2 ± 6.0	3.5 ± 1.0	27.2 ± 2.5	15.5 ± 4.1

Data are expressed as the mean ± SD (n = 3).