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. 2019 Summer;18(3):1137–1146. doi: 10.22037/ijpr.2019.1100715

Table 4.

GTP release profiles with various models at different loading concentrations of GTP and at different conditions

Condition Zero order
First order
Higuchi model
Hixson- Crowell model
Korsmeyer- Peppas model
Drug transport mechanism
k₀ k 1 k H k HC n
1 mg/mL GTP 0.9901 0.501 0.7792 0.019 0.8106 5.49 0.898 0.002 0.859 0.641 Anomalous
2.5 mg/mL GTP 0.9807 0.892 0.9879 0.023 0.7529 9.78 0.9922 0.002 0.8395 0.438 Fickian
5 mg/mL GTP 0.9964 1.321 0.9829 0.015 0.7699 17.7 0.9936 0.053 0.8548 0.548 Anomalous
10 mg/mL GTP 0.9970 1.717 0.9577 0.011 0.7868 26.1 0.9842 0.001 0.8613 0.573 Anomalous
pH 3 0.9794 0.730 0.9537 0.018 0.8432 9.80 0.9649 0.059 0.8483 0.674 Anomalous
pH 7.4 0.9964 1.321 0.9829 0.015 0.7699 17.7 0.9936 0.053 0.8548 0.548 Anomalous
pH 9 0.9956 1.52 0.9534 0.014 0.7912 20.3 0.9779 0.051 0.8616 0.636 Anomalous
RT 0.9912 1.21 0.9407 0.010 0.8385 18.8 0.9634 0.038 0.8844 0.647 Anomalous
37 °C 0.9964 1.321 0.9829 0.015 0.7699 17.7 0.9936 0.053 0.8548 0.548 Anomalous
45 °C 0.9947 1.286 0.8589 0.010 0.8208 19.9 0.9320 0.037 0.8695 0.711 Anomalous