期刊
INTERNATIONAL JOURNAL OF PHARMACEUTICS
卷 602, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.ijpharm.2021.120611
关键词
Acoustic levitation; Synchrotron light; Niclosamide; Polymer screening; Amorphous solid dispersion
资金
- Sao Paulo Research Foundation (FAPESP), SP, Brazil [2017/270780, 2019/049982, 2018/002730, 2018/119905]
- Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior - Brazil (CAPES) [001]
The study utilized acoustic levitation and high-resolution synchrotron to quickly screen polymers, revealing that Plasdone (R) and Soluplus (R) have excellent properties for forming NCL amorphous dispersions. Results from this fast screening method showed good agreement with conventional solvent evaporation screening, indicating great potential for accelerating ASD formulation screening and analysis.
The levitation of samples in an acoustic field has been of interest in the preparation and study of amorphous solid dispersions (ASD). Here, niclosamide-polymer solutions were levitated in a multi-emitter single-axis acoustic levitator and analyzed for 10 min at a High-resolution synchrotron X-ray powder diffraction beamline. This assembly enabled high-quality and fast time-resolved measurements with microliter sample size and measurement of solvent evaporation and recrystallization of niclosamide (NCL). Polymers HPMCP-55S, HPMCP-50, HPMCP-55, Klucel (R), and poloxamers were not able to form amorphous dispersions with NCL. Plasdone (R) and Soluplus (R) demonstrated excellent properties to form NCL amorphous dispersions, with the last showing superior solubility enhancement. Furthermore, this fast levitation polymer screening showed good agreement with results obtained by conventional solvent evaporation screening evaluated for five days in a stability study, carried out at 40 degrees C/75% RH. The study showed that acoustic levitation and high-resolution synchrotron combination opens up a new horizon with great potential for accelerating ASD formulation screening and analysis.
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