Photodynamic and Photothermal
Effects of Semiconducting
and Metallic-Enriched Single-Walled Carbon Nanotubes
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Abstract
Semiconducting and metallic single-walled carbon nanotubes
(s-SWNTs
and m-SWNTs) were enriched by agarose gel chromatography and their
photothermal and photodynamic effects were compared in H<sub>2</sub>O. Under near-infrared laser irradiation, s-SWNTs generated reactive
oxygen species (ROS) more than m-SWNTs, whereas m-SWNTs produced heat
more efficiently than s-SWNTs. More importantly, cancer cell killing
by PDE of s-SWNTs has been disclosed for the first time