Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2000-5-25
pubmed:abstractText
Three Dimensional Printing is a novel technique used in the fabrication of complex oral dosage delivery pharmaceuticals. It is possible to engineer devices with complicated internal geometries, varying densities and diffusivities, and multiple actives and excipients. Samples were fabricated using this technique using standard pharmaceutical materials. Erosion mechanism delayed-release tablets were constructed with varying polymer content from 8.9 to 17. 9%. Lag times varied between 25 and 50 min with a corresponding decrease in release rate as polymer content increased. Diffusion mechanism tablets were constructed with varying polymer content from 9.0 to 16.7%. The peak release rate decreased and the time to exhaustion increased with polymer content, whereas lag time was not affected. Active delivery studies with fluorescein indicated that Three Dimensional Printing is capable of accurately constructing dosage forms with active content as low as 10(-12) moles per tablet. Hardness and friability testing indicated that samples fabricated with this technique are comparable to other standard pharmaceutical products.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0168-3659
pubmed:author
pubmed:issnType
Print
pubmed:day
3
pubmed:volume
66
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1-9
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2000
pubmed:articleTitle
Oral dosage forms fabricated by three dimensional printing.
pubmed:affiliation
Department of Materials Science, Massachusetts Institute of Technology, Cambridge, MA, USA.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't