Journal
BRAZILIAN JOURNAL OF PHARMACEUTICAL SCIENCES
Volume 50, Issue 4, Pages 869-876Publisher
UNIV SAO PAULO, CONJUNTO QUIMICAS
DOI: 10.1590/S1984-82502014000400022
Keywords
Chitosan/nanoparticles/evaluation; Chitosan/nanoparticles/formulation; Selegiline hydrochloride/nanoparticles/drug release; Parkinson's therapy; Polymeric nanoparticles/formulation; Polymeric nanoparticles/evaluation; Taguchi Design
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The objective of the research was to formulate and evaluate selegiline hydrochloride loaded chitosan nanoparticles for the Parkinson's therapy in order to improve its therapeutic effect and reducing dosing frequency. Taguchi method of design of experiments (L9 orthogonal array) was used to get optimized formulation. The selegiline hydrochloride loaded chitosan nanoparticles (SHPs) were prepared by ionic gelation of chitosan with tripolyphosphate anions (TPP) and tween 80 as surfactant. The SHPs had a mean size of (303.39 +/- 2.01) nm, a zeta potential of + 32.50mV, and entrapment efficiency of SHPs was 86.200 +/- 1.38%. The in vitro drug release of SHPs was evaluated in phosphate buffer saline (pH 5.5) using goat nasal mucosa and found to be 82.529% +/- 1.308 up to 28 h. Release kinetics studies showed that the release of drug from nanoparticles was anomalous (non-fickian) diffusion indicating the drug release is controlled by more than one process i.e. superposition of both phenomenon, the diffusion controlled as well as swelling controlled release. SHPs showed good stability results as found during stability studies at different temperatures as mentioned in ICH guidelines. The results revealed that selegiline hydrochloride loaded chitosan nanoparticles are most suitable mode of delivery of drug for promising therapeutic action.
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