國家衛生研究院 NHRI:Item 3990099045/3612

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Please use this identifier to cite or link to this item: http://ir.nhri.org.tw/handle/3990099045/3612

Title:	Thermosensitive liposomes entrapping iron oxide nanoparticles for controllable drug release
Authors:	Tai, LA;Tsai, PJ;Wang, YC;Wang, YJ;Lo, LW;Yang, CS
Contributors:	Center for Nanomedicine Research;Division of Medical Engineering Research
Abstract:	Iron oxide nanoparticles can serve as a heating source upon alternative magnetic field (AMF) exposure. Iron oxide nanoparticles can be mixed with thermosensitive nanovehicles for hyperthermia-induced drug release, yet such a design and mechanism may not be suitable for controllable drug release applications in which the tissues are susceptible to environmental temperature change such as brain tissue. In the present study, iron oxide nanoparticles were entrapped inside of thermosensitive liposomes for AMF-induced drug release while the environmental temperature was maintained at a constant level. Carboxyfluorescein was co-entrapped with the iron oxide nanoparticles in the liposomes as a model compound for monitoring drug release and environmental temperature was maintained with a water circulator jacket. These experiments have been successfully performed in solution, in phantom and in anesthetized animals. Furthermore, the thermosensitive liposomes were administered into rat forearm skeletal muscle, and the release of carboxylfluorescein triggered by the external alternative magnetic field was monitored by an implanted microdialysis perfusion probe with an on-line laser-induced fluorescence detector. In the future such a device could be applied to simultaneous magnetic resonance imaging and non-invasive drug release in temperature-sensitive applications.
Date:	2009-04-01
Relation:	Nanotechnology. 2009 Apr 1;20(13):Article number 135101.
Link to:	http://dx.doi.org/10.1088/0957-4484/20/13/135101
JIF/Ranking 2023:	http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=0957-4484&DestApp=IC2JCR
Cited Times(WOS):	https://www.webofscience.com/wos/woscc/full-record/WOS:000264093800001
Cited Times(Scopus):	http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=65149101001
Appears in Collections:	[Chung-Shi Yang] Periodical Articles [Leu-Wei Lo] Periodical Articles

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