Table 1.

The size and zeta potential of alginate/BSA/chitosan system

Sample	Mean particles size (nm)	PDI	Zeta potential (mV)
Blank chitosan microparticles a	301.8	0.309	+45.2
BSA-loaded chitosan particles b	404	0.472	+27.1
Alginate coated BSA loaded chitosan microparticles c	1324	0.450	-27.8

^a chitosan 5 mg/ml, TPP 1 mg/ml.

^b chitosan 5 mg/ml, TPP 1 mg/ml, BSA 2 mg/ml.

^c chitosan 5 mg/ml, TPP 1 mg/ml, BSA 2 mg/ml, alginate 10 mg/ml.