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Table 3 The calculated kinetic parameters of Sunitinib malate release according to Higuchi and Korsmeyer-Peppas models [28]

From: Oral delivery of Sunitinib malate using carboxymethyl cellulose/poly(acrylic acid-itaconic acid)/Cloisite 30B nanocomposite hydrogel as a pH-responsive carrier

 

Higuchi model

 

Korsmeyer-Peppas model

KH

R2

N

KKP

R2

Hyd (0 wt%)

pH = 5.5

9.78

0.96

0.89

1.44

0.99

pH = 7.4

20.26

0.95

0.75

16.97

0.98

Hyd/Cloisite 30B (2 wt%)

pH = 5.5

8.76

0.97

0.68

2.06

0.99

pH = 7.4

15.65

0.96

0.53

14.24

0.98

Hyd/Cloisite 30B (4 wt%)

pH = 5.5

7.23

0.97

0.51

2.39

0.99

pH = 7.4

15.01

0.94

0.48

13.94

0.99

Hyd/Cloisite 30B (6 wt%)

pH = 5.5

2.69

0.97

0.38

6.97

0.99

pH = 7.4

12.011

0.95

0.28

8.80

0.99

Hyd/Cloisite 30B (8 wt%)

pH = 5.5

4.73

0.96

0.41

2.96

0.99

pH = 7.4

14.53

0.95

0.36

12.55

0.98

Hyd/Cloisite 30B (10 wt%)

pH = 5.5

2.73

0.93

0.39

5.81

0.99

pH = 7.4

13.93

0.97

0.31

11.84

0.98