Evaluation of polymeric nanoparticles composed of cholic acid and methoxy poly(ethylene glycol)
In: International journal of pharmaceutics, Jg. 226 (2001), Heft 1-2, S. 23-29
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Zugriff:
Amphiphilic polymeric conjugate based on cholic acid (CA) as the hydrophobic component and methoxy poly(ethylene glycol) (MPEG) as the hydrophilic component was synthesized using a 1,1'-carbonyldiimidazole (CDI) mediated conjugation. Fluorescence spectroscopy measurements suggested that CA and MPEG (abbreviated as CE) conjugate was associated in water to form polymeric core-shell type nanoparticles with a critical association concentration (CAC) value of 0.063 g l-1. From the transmission electron microscope (TEM) observation, CE nanoparticles were almost spherical with a size range of approximately 10-30 nm in the dried state, which was in agreement with the result from particle size measurement using photon correlation spectroscopy (PCS). Clonazepam (CNZ) was physically loaded into the CE nanoparticles with a 16.2 wt.% loading. CNZ release was pseudo zero-order in kinetic terms for up to 3 days.
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Evaluation of polymeric nanoparticles composed of cholic acid and methoxy poly(ethylene glycol)
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Autor/in / Beteiligte Person: | KIM, In-Sook ; KIM, Sung-Ho |
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Zeitschrift: | International journal of pharmaceutics, Jg. 226 (2001), Heft 1-2, S. 23-29 |
Veröffentlichung: | Amsterdam: Elsevier, 2001 |
Medientyp: | academicJournal |
Umfang: | print, 20 ref |
ISSN: | 0378-5173 (print) |
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