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. Author manuscript; available in PMC: 2019 Oct 28.
Published in final edited form as: J Control Release. 2018 Sep 14;288:212–226. doi: 10.1016/j.jconrel.2018.09.011

Table 2.

Physicochemical Characterizations of DOX-loaded and PTX-loaded POEG-b-PPPMP Micelles.

Micelles Mass ratio
(mg: mg) a
Size (nm) b PDI c DLC
(%) d
DLE
(%) e
Stability f
(RT)
Stability f
(4°C)

POEG15-b-PPPMP7 105.0 0.179
POEG15-b-PPPMP7 :
   DOX
10:1 87.58 0.221 6.5 68.9 48 h 6 d
POEG15-b-PPPMP7 :
   DOX
20:1 82.46 0.214 3.8 79.7 4 d 25 d
POEG15-b-PPPMP7 :
   DOX
30:1 79.77 0.196 2.8 86.7 7 d 37 d
POEG15-b-PPPMP7 :
   DOX
50:1 89.34 0.193 1.9 96.0 12 d 42 d
POEG15-b-PPPMP7 :
   PTX
10: 1 107.1 0.205 8.2 90.4 24 h 51 h
POEG15-b-PPPMP7 :
   PTX
20: 1 97.7 0.212 4.4 92.5 45 h 6 d
POEG15-b-PPPMP7 :
   PTX
30: 1 95.8 0.217 3.1 95.2 53 h 17 d
POEG15-b-PPPMP7 :
   PTX
50:1 93.2 0.205 1.9 95.6 7 d 21 d
a)

DOX or PTX concentration in micelles was kept at 0.5 or 1 mg/mL respectively.

b)

Measured by dynamic light scattering particle sizer.

c)

PDI = polydispersity index.

d)

DLC = drug loading capacity.

e)

DLE = drug loading efficiency.

f)

Data mean there was no noticeable size change and visible precipitates during the follow-up period.