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Nano-colloidal carrier via polymeric coating for oral delivery of isradipine.
Interventional Medicine & Applied Science 2017 December
Our research objective was to develop, characterize, and optimize stable form of nano-colloidal carrier with Eudragit-coated solid lipid nanobioparticles (SLNbp) for oral delivery of isradipine (ISR). To achieve, a three factors, i.e., lipid-to-surfactant ratio (A, % w/w), Eudragit L100 (B, % w/w), and sonication time (C, minutes) at three levels (-1 and +1 levels of quality central level) was applied to develop SLNbp using response surface methodology at constant ratio of ISR and rutin. The second-order polynomial quadratic equations of responses [R1, R2, and R3; entrapment efficiency (EE), particle size, and drug release] were constructed and also plotted response surface (two- and three-dimensional) plots. The derived polynomial equation and 2D and 3D model were showed the relationship between the responses of the selected independent variables (A, B, and C). The model validation and optimization was performed by numerical checkpoint analysis to predict the optimized solid lipid nanobioparticle formulas (ONbp 1-10). The optimized formulations prepared and during evaluation ONbp 3 has better smaller particle size (106 nm), sustainable release (95.61% up to 40 h), higher EE (97.85%), and drug content (99.92% ± 0.08%) during 3-month storage showed good stability. Therefore, its performance can be considered for further development of stable oral drug delivery system of ISR.
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