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|Title:||Porous silica microparticles from diatomaceous earth (DE) for drug delivery applications|
|Citation:||Chemeca 2010: Engineering at the Edge, 26-29 September 2010, Hilton Adelaide, South Australia: pp.-|
|Publisher Place:||Barton, ACT; Australia|
|Conference Name:||CHEMECA (38th : 2010 : Adelaide, Australia)|
|Moom Sinn Aw, Spomenka Simovic, Yang Yu, Jonas Addai-Mensah, Dusan Losic|
|Abstract:||Numerous mesoporous materials have been investigated in the last two decades to address therapeutic problems in drug delivery; for instance, poor bioavailability, low biodistribution, limited drug solubility, lack of selectivity and undesirable pharmacokinetics. In this work, a novel concept of using a silica-based natural mineral, referred to as diatomaceous earth (DE), as a drug carrier is explored. DE is formed from algae, a type of unicellular phytoplankton, through its silica shells (frustules) growth with ordered porous structures. To prove this concept we investigate loading and release of indomethacin, a poorly soluble drug from DE microparticles. The carrying capacity of DE was 22 wt % whereas indomethacin molecules in DE pores was released over a period of 12 days. This work demonstrates the application of DE microparticles as a drug carrier for sustainable release of drugs.|
|Rights:||© 2010 Engineers Australia|
|Appears in Collections:||Chemical Engineering publications|
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