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Formulation and Characterization of Doxorubicin Nanovesicles Publisher



Honary S1 ; Ebrahimi P2 ; Tabbakhian M3 ; Zahir F4
Authors
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Authors Affiliations
  1. 1. School of Pharmacy, Mazandaran University of Medical Sciences, Sari 48175/86l, 18th km of Khazar Rd., Iran
  2. 2. Higher Education Center, Gonbad, P.O. Box 163, Iran
  3. 3. School of Pharmacy, Esfahan University of Medical Sciences, Esfahan, Iran
  4. 4. School of Pharmacy, Mazandaran University of Medical Sciences, Sari, Iran

Source: Journal of Vacuum Science and Technology B:Nanotechnology and Microelectronics Published:2009


Abstract

Ascorbyl palmitate formed vesicles in combination with cholesterol and a negatively charged lipid (dicetyl phosphate). Niosomes were prepared by the film hydration method, followed by sonication, in which aqueous doxorubicin solution (in phosphate buffer saline pH=7.4) was encapsulated in aqueous regions of lipid layers. Vesicle's formation was confirmed by either scanning electron microscopy images or observation of unsonicated vesicles by light microscope. The percent efficiencies of doxorubicin encapsulation of the different formulations were determined by fluorescence spectrophotometry. Cholestrol content in niosomes did not exhibit any relation to vesicle size, zeta potential, percent entrapment, or release rate. Differential scanning calorimetric data of pure lipids, vesicle dispersion, and mixture of lipids confirmed the formation of niosomes. © 2009 American Vacuum Society.
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