The present study evaluates role of pullulan as hepatic targeting agent. Nanoparticles of silymarin (SIM) a hepatoprotective drug were prepared using polyethylene sebacate (PES) as biodegradable polymer and surface modified with pullulan. PES-SIM nanoparticles (PES-SIM NP) and PES-SIM nanoparticles surface modified with pullulan (PES-SIM-PUL) were prepared by nanoprecipitation.
View Article and Find Full Text PDFThe present study discusses evaluation of pullulan-functionalized doxorubicin nanoparticles for asialoglycoprotein receptor-mediated uptake in the Hep G2 cell line. Doxorubicin hydrochloride (DOX) nanoparticles using polymers of different hydrophobic character, polyethylene sebacate (hydrophobic) and poly (lactic-co-glycolic acid) (intermediate hydrophobicity) with high entrapment efficiency and particle size were prepared by modified nanoprecipitation, using Gantrez AN 119 as complexing agent. Nanoparticles of Gantrez AN 119 were also prepared to represent a hydrophilic polymer.
View Article and Find Full Text PDFThe present study discusses polyethylene sebacate (PES)-doxorubicin (DOX) nanoparticles (PES-DOX NP) using pullulan as asialoglycoprotein receptor (ASGPR) ligand for hepatic targeting. Pullulan, a hydrophilic polymer served as ligand and as stealth agent. PES-DOX NP were prepared by modified nanoprecipitation using PES and Gantrez AN 119 (Gantrez), as complexing agent in the organic phase, while DOX was dissolved in the aqueous phase.
View Article and Find Full Text PDFAAPS PharmSciTech
February 2010
The present study demonstrates feasibility of preparation of nanoparticles using a novel polymer, polyethylene sebacate (PES), and its application in the design of drug-loaded nanocarriers. Silymarin was selected as a model hydrophobic drug for the present study. Two methods of preparation, viz.
View Article and Find Full Text PDFDoxorubicin remains the first line of treatment for various cancers ever since its discovery in 1971. Cardiotoxicity and nephrotoxicity associated with unformulated doxorubicin triggered the development of doxorubicin nanocarriers. Although the therapeutic profile of doxorubicin is appreciably improved by entrapping in nanocarriers, they are largely taken up by organs of the reticuloendothelial system.
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