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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
2009-9-22
pubmed:abstractText
Salicylic acid-beeswax microspheres were prepared by melt dispersion technique. The effects of formulation parameters on the microscopic characteristic, drug loading and cumulative amount of released drug were investigated by experimental design. Results showed that all of the microparticles were spherical with porous surfaces. The average size of microspheres was 24-48 microm, the drug content was in the range of 22-45% and the encapsulation efficiency was 46-93%. Drug loading was influenced by emulsification speed as a main factor. All the microspheres had a burst release initially. The emulsifier concentration did not have a significant effect on drug release. The release behaviour of microspheres conformed best to Korsmeyer-Peppas semi-empirical model and the release of SA from beeswax microspheres was Fickian (n < 0.45).
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
1464-5246
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
26
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
485-92
pubmed:meshHeading
pubmed:year
2009
pubmed:articleTitle
Preparation and investigation the release behaviour of wax microspheres loaded with salicylic acid.
pubmed:affiliation
Islamic Azad University, Science and Research Branch, Tehran, Iran. aida_gifani@yahoo.com
pubmed:publicationType
Journal Article