抄録
An encapsulation of biomolecules such as DNA and ionic liquids into single-walled carbon nanotubes (SWNTs) is demonstrated using an ion irradiation method in electrolyte plasmas. The DNA negative ion irradiation can be controlled by varying electric fields and irradiation time. Based on the Raman spectroscopy analysis, DNA is confirmed to be inserted into SWNTs. Furthermore, the positive and negative ions of the ionic liquids are also encapsulated into SWNTs and modify the electronic state ofSWNTs depending on the polarity of the ions.