Muhammad Yousaf Shahzad, Muhammad Abbas, Muhammad Tayyab Ansari, Mudassar Abbas
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Binary and ternary complex formation and characterization of artemisinin with sulfobutyl ether β-cyclodextrin and oleic acid.
Drug-resistant malaria is a global risk to the modern world. Artremisinin (ART) is one of the drugs of choice against drug-resistant (malaria) which is practically insoluble in water. The objective of our study was to improve the solubility of artemisinin (ART) via development of binary complexes of ART with sulfobutylether β-cyclodextrins (SBE7 β-CD), sulfobutylether β-cyclodextrins (SBE7 β-CD) and oleic acid (ternary complexes). These are prepared in various drugs to excipients ratios by physical mixing (PM) and solvent evaporation (SE) methods. Characterizations were achieved by powder X-ray diffraction (PXRD), scanning electron microscopy (SEM) and attenuated total reflectance Fourier Transform Infrared (ATR-FTIR) spectroscopy. The aqueous-solubility in binary complexes was 12-folds enhanced than ternary complexes. Dissolution of binary and ternary complexes of artemisinin in simulated gastric fluid (pH 1.6) was found highest and 35 times higher for ternary SECx. The crystallinity of artemisinin was decreased in physical mixtures (PMs) while SECx exhibited displaced angles. The attenuated-intensity of SECx showed least peak numbers with more displaced-angles. SEM images of PMs and SECx showed reduced particle size in binary and ternary systems as compared to pure drug-particles. ATR-FTIR spectra of binary and ternary complexes revealed bonding interactions among artemisinin, SBE7 β-CD and oleic acid.
期刊介绍:
Pakistan Journal of Pharmaceutical Sciences (PJPS) is a peer reviewed multi-disciplinary pharmaceutical sciences journal. The PJPS had its origin in 1988 from the Faculty of Pharmacy, University of Karachi as a biannual journal, frequency converted as quarterly in 2005, and now PJPS is being published as bi-monthly from January 2013.
PJPS covers Biological, Pharmaceutical and Medicinal Research (Drug Delivery, Pharmacy Management, Molecular Biology, Biochemical, Pharmacology, Pharmacokinetics, Phytochemical, Bio-analytical, Therapeutics, Biotechnology and research on nano particles.