Table 1. Thermal analysis data from DSC thermo grams, DS values and the related Zeta potentials for nanocarriers .

St- derivative	T onset	T offset	T Max	DS	Zeta potential(mV)
Starch SS	40.6	160.3	125.1	-	-35
St-alanine	53.2	160.9	112.1	0.34	-15
St-leucine	99.2	186.4	147.2	0.30	-19
St-phenyl alanine	45.3	136.8	93.4	0.46	-10

DS: degree of substitution.