Indomethacin nanoparticles directly deposited on the fluidized particulate excipient by pulsed laser deposition View Full Text


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Article Info

DATE

2004-12

AUTHORS

Sanshiro Nagare, Mamoru Senna

ABSTRACT

Nanoparticles of indomethacin (IM), a sparingly soluble drug in water, were prepared by pulsed laser deposition with Nd: YAG laser at 1064 nm. Variation of the deposition rate (DR) with various experimental conditions, such as species and pressure of the background gas, and laser fluence, was discussed. We obtained highest DR, 2.7 μg/cm2min, under He at 100 Pa with the laser fluence of 25 J/cm2. In the deposited solid product, no trace of drug decomposition was observed by HPLC. Deposition of IM nanoparticles was achieved on the fluidized excipient, potato starch particles of 20 μm regime. By TEM observation and zeta potential distribution measurement, we confirmed that surface of excipient particles was fully covered by nanoparticles of IM. Thus, the present method enables us a new method of one-step preparation of drug-excipient nanocomposites to eliminate tedious problems associated with nanoparticles handling. More... »

PAGES

589-593

References to SciGraph publications

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/s11051-004-3091-3

DOI

http://dx.doi.org/10.1007/s11051-004-3091-3

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1014783594


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