Abstract
Thanks to their capillary-like structure CNTs provide a well-characterized container material for hosting miscellaneous fillings. Here we present basic studies on the use of CNTs for drug delivery. By introducing carboplatin, an anticancer drug, into the CNTs via a wet chemical approach, drug-filled nanotubes have been produced. The maintenance of the structure of carboplatin was proven using electron energy loss spectroscopy and X-ray photoelectron spectroscopy. It was shown that the drug is released into cell culture medium leading to cell death. Cell viability assays performed with bladder cancer cells EJ28 demonstrated the cytotoxicity of CNTs filled with carboplatin. For comparison a reference of unfilled, open ended CNTs did not affect the cell viability. These results point out the general capabilities of CNTs as nanocarriers for drug delivery.
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Acknowledgments
The authors would like to thank G. Kreutzer and S. Pichl for the SEM/TEM-investigations. This work was supported by the Leibniz Association within the “Pakt für Forschung und Innovation”. Further financial support was given by the European Community through the Marie Curie Research Training Network CARBIO under contract No. MRTN-CT-2006-035616.
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Haase, D. et al. (2011). Carbon Nanotubes Filled with Carboplatin: Towards Carbon Nanotube-Supported Delivery of Chemotherapeutic Agents. In: Klingeler, R., Sim, R. (eds) Carbon Nanotubes for Biomedical Applications. Carbon Nanostructures. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-14802-6_13
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DOI: https://doi.org/10.1007/978-3-642-14802-6_13
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