By a News Reporter-Staff News Editor at Cancer Weekly -- Investigators publish new report on Nanorods. According to news reporting originating from Sendai, Japan, by NewsRx correspondents, research stated, "Recently, photothermal ablation therapy (PTA) employing near-infrared radiation (NIR) has been extensively investigated as an emerging modality for cancer management. However, the clinical translation of this promising approach is limited by the lack of PTA agents with broad NIR absorption, low cost and high photothermal conversion efficiency."
Our news editors obtained a quote from the research from Tohoku University, "Herein, we have developed PEGylated homogeneous CsxWO3 nanorods (a mean size ?69.3 nm x 12.8 nm) with broad photo-absorption (780-2500 nm) as a novel NIR absorbent for PTA treatment of human cancer. The prepared CsxWO3 nanocrystals displayed strong near-infrared optical absorption with a high molar extinction coefficient (e.g. 4.8 x 10(10) M(-1) cm(-1) at 980 nm), thus generated significant amounts of heat upon excitation with near-infrared light. The PTA study in two human carcinoma cell lines (i.e. A549 lung cancer cells and HeLa ovarian cancer cells) demonstrated that CsxWO3 nanorods can efficiently cause cell death via hyperthermia induced lysosome destruction, cytoskeleton protein degradation, DNA damage and thereafter cellular necrosis or apoptosis. Our study also confirmed the migration of healthy cells migrated from unirradiated areas to dead cell cycle, which is essential for tissue reconstruction and wound healing after photodestruction of tumor tissue."
According to the news editors, the research concluded: "The prompted results reported in the current study imply the promising potential of CsxWO3 nanorods for application in PTA cancer therapy."
For more information on this research see: Photothermal ablation cancer therapy using homogeneous CsxWO3 nanorods with broad near-infra-red absorption. Nanoscale, 2013;5(14):6469-78. (Royal Society of Chemistry - www.rsc.org/; Nanoscale - pubs.rsc.org/en/journals/journalissues/nr)
The news editors report that additional information may be obtained by contacting C. Guo, Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, 980-8577, Japan. Additional authors for this research include S. Yin, H. Yu, S. Liu, Q. Dong, T. Goto, Z. Zhang, Y. Li and T. Sato (see also Nanorods).
Keywords for this news article include: Asia, Japan, Sendai, Cancer, Therapy, Oncology, Nanotechnology, Emerging Technologies.
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