Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/86998
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Type: Journal article
Title: Radiofrequency-triggered release for on-demand delivery of therapeutics from titania nanotube drug-eluting implants
Author: Bariana, M.
Aw, M.
Moore, E.
Voelcker, N.
Losic, D.
Citation: Nanomedicine, 2014; 9(8):1263-1275
Publisher: Future Medicine
Issue Date: 2014
ISSN: 1743-5889
1748-6963
Statement of
Responsibility: 
Manpreet Bariana, Moom Sinn Aw, Eli Moore, Nicolas H Voelcker, Dusan Losic
Abstract: AIM: This study aimed to demonstrate radiofrequency (RF)-triggered release of drugs and drug carriers from drug-eluting implants using gold nanoparticles as energy transducers. MATERIALS & METHODS: Titanium wire with a titania nanotube layer was used as an implant loaded with indomethacin and micelles (tocopheryl PEG succinate) as a drug and drug carrier model. RF signals were generated from a customized RF generator to trigger in vitro release. RESULTS & DISCUSSION: Within 2.5 h, 18 mg (92%) of loaded drug and 14 mg (68%) of loaded drug carriers were released using short RF exposure (5 min), compared with 5 mg (31%) of drug and 2 mg (11%) of drug carriers without a RF trigger. Gold nanoparticles can effectively function as RF energy transducers inside titania nanotubes for rapid release of therapeutics at arbitrary times. CONCLUSION: The results of this study show that RF is a promising strategy for triggered release from implantable drug delivery systems where on-demand delivery of therapeutics is required.
Keywords: drug-eluting implant; gold nanoparticle; micelle; noninvasive drug delivery; polymer; radiofrequency; titania nanotube; triggered drug release; water-insoluble drug
Rights: Copyright status unknown
RMID: 0030007629
DOI: 10.2217/nnm.13.93
Grant ID: http://purl.org/au-research/grants/arc/FT110100711
http://purl.org/au-research/grants/arc/DP120101680
Appears in Collections:Chemical Engineering publications

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