Sample Mean size ± SD(nm) PDI ± SD Zeta potential ± SD(mV) EE
PLGA-PEG 87 ± 5 0.08 ± 0.02 - 24 ± 0.3  
Doc-PLGA-PEG 105 ± 4 0.1 ± 0.07 - 25 ± 0.5 43%
ScFv-Doc-PLGA- 145 ± 9 0.1 ± 0.07 - 32 ± 1  
PEG        
Table 1: Physicochemical characteristics of PLGA-PEG, Doc-PLGA-PEG and scFv-Doc-PLGA-PEG nanoparticles (n=3).