Photoinduced charge transfer mediated by DNA-wrapped carbon nanotubes.
We report our observation of solution photochemical reactions catalyzed by carbon nanotubes. Addition of sub-millimolar Ag+ ions into a solution of DNA-wrapped carbon nanotubes (DNA-CNT) leads to a strong charge-transfer band in the UV region of the optical absorption spectrum. Light irradiation of the Ag+/DNA-CNT mixture results in reduction of Ag+ to Ag nanoparticles and concomitant oxidation of water.
Zheng
Ming
M
DuPont Central Research and Development, Wilmington, Delaware 19880, USA. ming.zheng@usa.dupont.com
Rostovtsev
Vsevolod V
VV
D004247:DNA / Q000737:chemistry*; D004563:Electrochemistry; D004735:Energy Transfer; D036103:Nanotechnology / Q000379:methods*; D037742:Nanotubes, Carbon / Q000737:chemistry*; D010777:Photochemistry; D012996:Solutions / Q000737:chemistry; D013057:Spectrum Analysis; D014867:Water / Q000737:chemistry
D037742:Nanotubes, Carbon; D012996:Solutions; D014867:Water; D004247:DNA