Alginate nanocapsules (ALG)

CaCl2 (×10−3%)

0

6.25

12.5

25

Mean size (nm)

387 ± 10

274 ± 5

311 ± 5

273 ± 11

PDI

0.46 ± 0.03

0.26 ± 0.03

0.27 ± 0.04

0.21 ± 0.02

z-potential (mV)

−43.3 ± 0.1

−30.6 ± 0.6

−23.5 ± 0.7

−19.1 ± 0.5

Chitosan nanocapsules (CTS)

TPP (×10−3%)

0

6.25

12.5

25

Mean size (nm)

303 ± 15

487 ± 29

523 ± 52

2249 ± 176

PDI

0.20 ± 0.01

0.48 ± 0.3

0.3 ± 0.05

0.6 ± 0.3

z-potential (mV)

+50 ± 1

+33 ± 1

+24 ± 0.4

+13 ± 0.4

Alginate-chitosan nanocapsules (ALG-CTS)

ALG-CTS ratio

1:3

1:1

3:1

4:0

Mean size (nm)

1209 ±160

488 ± 15

413 ± 4

394 ± 7

PDI

0.90 ± 0.20

0.45 ± 0.03

0.20 ± 0.03

0.4 ± 0.1

z-potential (mV)

−5.4 ± 0.1

−20.0 ± 0.8

−28.1 ± 0.7

−41.6 ± 0.1