Table 1.

Characterization of different formulations

Formulations	Particle size (d, nm)	Zeta potential (mV)	PDI	EE% of DOX
Blank DQAsomes	71.10±3.1	35.3±1.4	0.221±0.02	–
DQAsomes	87.27±4.2	30.8±3.4	0.191±0.05	57.8±3.7
PS-DQAsomes	104.1±3.4	14.2±3.6	0.171±0.03	50.22±4.5
HPS-DQAsomes	112.7±3.3	12.7±2.8	0.168±0.02	53.44±3.8

Abbreviations: DOX, doxorubicin; DQA, dequalinium; EE, encapsulation efficiency; HPS, HER-2 peptide-PEG₂₀₀₀-Schiff base; PDI, polydispersity index.