Table 2.

Hydrodynamic radius (R_H), polydispersity index (P.I.) and zeta potential (ζ) of the analysed CS/TPP NPs (sample 1), CS/TPP-HY NPs (samples 2) and CS/HY NPs (sample 3) after re-suspension of the lyophilized products. S.D.: standard deviation. See text for details.

Samples		mg	RH (nm) ± S.D.	P.I. (%)	ζ (mV) ± S.D.
1	CS	4	180.54 ± 2.89	22 ± 2	+26.54 ± 2.41
	TPP	1
2	CS	4	162.71 ± 5.41	79 ± 5	−21.85 ± 2.31
	TPP	1
	HY	0.5
3	CS	2.82	110.23 ± 3.15	12 ± 3	−13.51 ± 1.85
	HY	0.56