Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/94022
Citations
Scopus Web of Science® Altmetric
?
?
Type: Journal article
Title: Silica microcapsules from diatoms as new carrier for delivery of therapeutics
Author: Aw, M.
Simovic, S.
Addai-Mensah, J.
Losic, D.
Citation: Nanomedicine, 2011; 6(7):1159-1173
Publisher: Future Medicine
Issue Date: 2011
ISSN: 1743-5889
1748-6963
Statement of
Responsibility: 
Moom Sinn Aw, Spomenka Simovic, Jonas Addai-Mensah & Dusan Losic
Abstract: Aim: This study explores the use of natural silica-based porous material from diatoms, known as diatomaceous earth, as a drug carrier of therapeutics for implant- and oral-delivery applications. Materials & Methods: To prove this concept, two drugs models were used and investigated: a hydrophobic (indomethacin) and hydrophilic (gentamicin). Results & Discussion: Results show the effectiveness of diatom microcapsules for drug-delivery application, showing 14–22 wt% drug loading capacity and sustained drug release over 2 weeks. Two steps in the drug release from diatom structures were observed: the first, rapid release (over 6 h is attributed to the surface deposited drug) and the second, slow and sustained release over 2 weeks with zero order kinetics. Conclusion: These results confirm that natural material based on diatom silica can be successfully applied as a drug carrier for both oral and implant drug-delivery applications, offering considerable potential to replace existing synthetic nanomaterials.
Keywords: Diatoms; Silicon Dioxide; Indomethacin; Gentamicins; Anti-Inflammatory Agents, Non-Steroidal; Capsules; Drug Carriers; Anti-Bacterial Agents; Porosity
Rights: Copyright status unknown
RMID: 0020127826
DOI: 10.2217/nnm.11.29
Grant ID: http://purl.org/au-research/grants/arc/LP0989229
Appears in Collections:Chemical Engineering publications

Files in This Item:
There are no files associated with this item.


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.