Cancer-cell-specific cytotoxicity of non-oxidized iron elements in iron core-gold shell NPs

Ya Na Wu, Dong Hwang Chen, Xian Yu Shi, Chiao Ching Lian, Ting Yu Wang, Chen Sheng Yeh, Kyle R. Ratinac, Pall Thordarson, Filip Braet, Dar Bin Shieh

研究成果: Article同行評審

72 引文 斯高帕斯(Scopus)


Gold-coated iron nanoparticles (NPs) selectively and significantly (P <0.0001) inhibit proliferation of oral- and colorectal-cancer cells in vitro at doses as low as 5 μg/mL, but have little adverse effect on normal healthy control cells. The particle treatment caused delay in cell-cycle progression, especially in the S-phase. There was no significant difference in the NP uptake between cancer and control cells, and cytotoxicity resulted primarily from the iron core, before oxidation, rather than from the Fe ions released from the core. In contrast with magnetic NPs that usually serve as drug carriers, diagnostic probes or hyperthermia media, the iron, before oxidation, in the NPs selectively suppressed cancer cell growth and left healthy control cells unaffected in vitro and in vivo. This novel nanomaterial holds great promise as a therapeutic tool in nanomedicine.

頁(從 - 到)420-427
期刊Nanomedicine: Nanotechnology, Biology, and Medicine
出版狀態Published - 2011 8月

All Science Journal Classification (ASJC) codes

  • 生物工程
  • 醫藥(雜項)
  • 分子醫學
  • 生物醫學工程
  • 一般材料科學
  • 藥學科學


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