Structural Insight into Chitosan Supports Functionalized with Nanoparticles

Table 1

Zeta potential (ZP, mV), nanoparticle diameters (nm), TEM micrographs, polydispersity index (PDI), and percentage encapsulation efficiency (PEE) of N_A and N_B suspensions. Variables were chitosan concentration (w/w), chitosan:tripolyphosphate ratio (CH:TPP), and gallic acid concentration expressed as mg_GA/g_CH.

Suspension	CH (%)	CH:TPP	GA (mg/gCH)	ZP (mV)	Diameter (nm)	TEM	PDI	PEE
NA	0.75	5	50	46.6 (3.2)^b	453.1 (30.0)^b		0.61 (0.02)^b	80.9 (2.1)^a
NB	0.75	3	50	27.7 (1.2)^a	140.3 (7.1)^a		0.18 (0.01)^a	80.4 (1.8)^a

Different letters in the same column indicate significant differences between samples.