Date of Completion

Spring 5-1-2024

Thesis Advisor(s)

Na Li

Honors Major

Doctor of Pharmacy

Disciplines

Other Pharmacy and Pharmaceutical Sciences | Pharmaceutics and Drug Design

Abstract

The research of amorphous drug formulations is an emerging field of study, which offers a promising strategy to improve the oral bioavailability of poorly water-soluble drugs. A critical aspect of amorphous solubility is the measurement of particle size and light diffraction, which is measured using dynamic light scattering (DLS). DLS is a technique used to characterize the size of colloidal dispersions, where a laser beam illuminates a suspension of particles or molecules undergoing Brownian motion. In this experiment, a procedure was developed utilizing DLS to investigate the similarities and differences in light diffraction properties of particles among three different poorly water-soluble drugs. It was determined that there is a significant difference in light diffraction particles of different drugs despite the drug particles being the same size. As a quality control measure, particle size was manipulated and configured using different techniques to be similar among all three drugs. The drugs utilized in this experiment are atazanavir, lopinavir, and anacetrapib.

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