Journal
APPLIED SURFACE SCIENCE
Volume 197, Issue -, Pages 610-614Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S0169-4332(02)00408-7
Keywords
pulsed laser deposition; particles; drug delivery; biodegradable polymers
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There is an urgent need to develop controlled drug release systems for the delivery of drugs via the pulmonary route. A key issue in pulmonary dry delivery systems is to reduce the amount of biodegradable polymers that are added to control the drug release. We have synthesized nanofunctionalized drug particles using the pulsed laser deposition on particles (PLDP) (e.g. budesonide) in an effort to control the architecture and thickness of a nanoscale polymer coating on the drug particles. In vitro studies indicated that the dry half-life release for budesonide can be enhanced from 1.2 to over 60 min by a nanoscale coating on the drug particle. Extensive studies have been conducted to characterize the bonding and composition of the polymer film deposited on drug particles. (C) 2002 Published by Elsevier Science B.V.
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