Photothermal cancer therapy using graphitic carbon–coated magnetic particles prepared by one-pot synthesis

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ID: 71944
2014
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Abstract
Hyo-Jeong Lee,1 Jakkid Sanetuntikul,2 Eun-Sook Choi,1 Bo Ram Lee,1 Jung-Hee Kim,1 Eunjoo Kim,1 Sangaraju Shanmugam2 1Nano and Bio Research Division, 2Department of Energy Systems Engineering, Daegu Gyeongbuk Institute of Science and Technology, Daegu, Republic of Korea Abstract: We describe here a simple synthetic strategy for the fabrication of carbon-coated Fe3O4 (Fe3O4@C) particles using a single-component precursor, iron (III) diethylenetriaminepentaacetic acid complex. Physicochemical analyses revealed that the core of the synthesized particles consists of ferromagnetic Fe3O4 material ranging several hundred nanometers, embedded in nitrogen-doped graphitic carbon with a thickness of ~120 nm. Because of their photothermal activity (absorption of near-infrared [NIR] light), the Fe3O4@C particles have been investigated for photothermal therapeutic applications. An example of one such application would be the use of Fe3O4@C particles in human adenocarcinoma A549 cells by means of NIR-triggered cell death. In this system, the Fe3O4@C can rapidly generate heat, causing >98% cell death within 10 minutes under 808 nm NIR laser irradiation (2.3 W cm-2). These Fe3O4@C particles provided a superior photothermal therapeutic effect by intratumoral delivery and NIR irradiation of tumor xenografts. These results demonstrate that one-pot synthesis of carbon-coated magnetic particles could provide promising materials for future clinical applications and encourage further investigation of this simple method. Keywords: graphitic carbon–encapsulated magnetic nanoparticles, iron oxide, one-pot synthesis, photothermal cancer therapy
Reference Key
hj2014photothermalinternational Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Lee HJ, Sanetuntikul J, Choi ES, Lee BR, Kim JH, Kim E, Shanmugam S
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Journal international journal of nanomedicine
Year 2014
DOI
DOI not found
URL
http://www.dovepress.com/photothermal-cancer-therapy-using-graphitic-carbonndashcoated-magnetic-peer-reviewed-article-IJN
Keywords
Medicine (General)

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