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Table 2 Correlation coefficients according to different kinetic equations

From: Preparation and evaluation of pirfenidone loaded chitosan nanoparticles pulmonary delivery for idiopathic pulmonary fibrosis

Formulation

% Drug release

Zero order

First order

Higuchi plot

Peppas plot

‘n’ Value

F1

99.99

–

–

–

–

–

F2

98.94

0.749

0.992

0.959

0.989

0.387

F3

95.25

0.930

0.979

0.918

0.974

0.478

F4

92.34

0.785

0.978

0.917

0.968

0.393

F5

90.21

0.862

0.956

0.975

0.997

0.369

F6

87.66

0.748

0.988

0.971

0.978

0.377

F7

85.37

0.789

0.987

0.889

0.983

0.402