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- W3175830690 abstract "Real time analysis of pharmaceuticals in controlled release nano and microsystems remains a challenge. It is hypothesized that fluorine 19 nuclear magnetic resonance (19F qNMR) can be used for real time quantification and in vitro release of maraviroc (MVC). The release of maraviroc was analyzed in simulated body fluids from spray dried sodium alginate microspheres (MS) using the 19F qNMR method. Calibration produced a linearity curve in concentration range (0.42 mg/ml - 15 mg/ml), and the limits of detection and quantification values were 0.97 mg/ml and 2.93 mg/ml, respectively. The method was confirmed to be specific, accurate, precise, and robust (%RSE > 2%). MVC was successfully microencapsulated (18% w/w) as evidenced by the FT-IR spectra and SEM images. The MS had an average diameter of 2.522 ± 0.15 μm, with a zeta potential of - 61.31 ± 2.1 mV. Overall, the 19F qNMR method enabled a direct and real time quantification of MVC for an efficient drug release kinetics. This approach could be potentially used to quantify fluorinated drug potency, purity, and stability, and evaluate in vitro release kinetic from different formulations." @default.
- W3175830690 created "2021-07-05" @default.
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- W3175830690 date "2021-06-01" @default.
- W3175830690 modified "2023-09-26" @default.
- W3175830690 title "Fluorine (19F) Nuclear Magnetic Resonance Spectroscopy For Real Time Maraviroc Analysis From Microparticulate Systems" @default.
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- W3175830690 doi "https://doi.org/10.1016/j.xphs.2021.06.032" @default.
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