. 2015 Apr 3;13:29. doi: 10.1186/s12951-015-0088-2

Table 1.

Properties of DTX-loaded NPs before and after freeze-drying

	DTX-PLGA/PEI NPs	DTX-PLGA/PEI/HA NPs	DTX-PLGA/PEI NPs freeze-dried	DTX-PLGA/PEI/HA NPs freeze-dried
Trehalose/NP weight ratio	-		60
Yield (% ± SD)	21.2 ± 0.8^a		-
Mean D_H (nm ± SD)	155 ± 9^b	173 ± 10^b	176 ± 4^c	203 ± 10^c
Polydispersity index	0.10^b	0.13^b	0.20^c	0.17^c
Zeta Potential (mV)	+39.0^b	−23.2^b	+33.5^c	−22.3^c
DTX actual loading(mg per 100 mg)	0.95 ± 0.5		0.013 ± 0.001
PEI actual loading(mg per 100 mg)	7.94 ± 2.1		0.132 ± 0.010
HA actual loading(mg per 100 mg)	-	12.2 ± 0.8	-	0.20 ± 0.03

^aCalculated as ratio between total component weight and NP weight.

^bAs prepared NPs before freeze-drying.

^cAfter dispersion of freeze-dried powder in water.