RF heating of ultra-short single-walled carbon nanotubes and gadonanotubes for non-invasive cancer hyperthermia

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dc.contributor.advisorWilson, Lon J.
dc.contributor.committeeMemberMarti, Angel A.
dc.contributor.committeeMemberGrande-Allen, K. Jane
dc.contributor.committeeMemberCurley, Steven A.
dc.creatorPhounsavath, Sophia
dc.date.accessioned2014-10-06T21:55:01Z
dc.date.available2014-10-06T21:55:01Z
dc.date.created2014-05
dc.date.issued2014-01-30
dc.date.submittedMay 2014
dc.date.updated2014-10-06T21:55:01Z
dc.description.abstractAn emerging field of nanoparticle-mediated cancer therapy is based on the interaction of nanoparticles with radiofrequency (RF) energy to induce hyperthermia or thermal cytotoxicity within cancer cells. In this work, the heating properties of ultra-short single-walled carbon nanotubes (US-tubes) and gadonanotubes (GNTs) were assessed in an external radiofrequency field (900 W, 13.56 MHz). Surfactant (Pluronic F-108) suspensions of US-tubes (carbon-based nanocapsules that are 20-80 nm in length and 1.4 nm in diameter) and GNTs (US-tubes loaded internally with Gd3+ ions) heated in a concentration dependent manner when the RF field was applied. The observed bulk heating of the sample suspensions have been attributed to the nanomaterial itself and not the background surfactant solution. The efficacy of these remotely triggered heating agents to produce thermal cytotoxicity was then investigated in vitro in three different hepatocellular cancer cell lines (Hep3B, HepG2, and Snu449). In all cases, cancer cells that were treated with either US-tubes or GNTs in conjunction with RF had lower viabilities than those treated with RF alone. The ability of GNTs to induce thermal cytotoxicity in vivo was then investigated using subcutaneous tumor models in nude mice. Histopathological analysis of treated tumors demonstrated more pronounced and widespread cell damage in tumors treated with GNTs and RF than in the control tumors. It is anticipated that these results will aid in the future development of nanoparticle-mediated cancer therapy by hyperthermia.
dc.format.mimetypeapplication/pdf
dc.identifier.citationPhounsavath, Sophia. "RF heating of ultra-short single-walled carbon nanotubes and gadonanotubes for non-invasive cancer hyperthermia." (2014) Diss., Rice University. <a href="https://hdl.handle.net/1911/77425">https://hdl.handle.net/1911/77425</a>.
dc.identifier.urihttps://hdl.handle.net/1911/77425
dc.language.isoeng
dc.rightsCopyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.
dc.subjectCancer hyperthermia
dc.subjectRF heating
dc.subjectGadonanotubes
dc.subjectRadiofrequency ablation
dc.titleRF heating of ultra-short single-walled carbon nanotubes and gadonanotubes for non-invasive cancer hyperthermia
dc.typeThesis
dc.type.materialText
thesis.degree.departmentChemistry
thesis.degree.disciplineNatural Sciences
thesis.degree.grantorRice University
thesis.degree.levelDoctoral
thesis.degree.nameDoctor of Philosophy
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