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Table 1 Particle size, zeta potential, polydispersity index (PDI), and drug (DOX) loading of the nanoparticles

From: Targeting and sensitizing MDR cancer by an MMP2 and pH dual-responsive ZnO-based nanomedicine

Name

Particle size (nm)

PDI

Zeta potential (mV)

Drug loading (%)

ZnO

56.43 ± 12.05

0.17 ± 0.06

24.22 ± 1.32

–

ZnO/DOX

57.30 ± 9.23

0.16 ± 0.02

21.40 ± 1.89

16.28

DPPG

343.77 ± 8.04

0.27 ± 0.01

− 59.94 ± 3.20

–

ZnO/DPPG

47.05 ± 3.29

0.22 ± 0.01

− 45.30 ± 1.90

–

ZnO/DPPG/PEG-PE

60.46 ± 6.12

0.13 ± 0.02

− 16.98 ± 1.51

–

ZnO/DPPG/PEG-pp-PE

73.11 ± 10.76

0.20 ± 0.01

− 19.16 ± 3.03

–

ZnO/DPPG/PEG-PE/DOX

60.11 ± 4.43

0.19 ± 0.03

− 25.33 ± 0.54

10.33

ZnO/DPPG/PEG-pp-PE/DOX

83.25 ± 20.87

0.20 ± 0.02

− 20.43 ± 1.06

11.49