Proceedings of the Polymer Society of Korea Conference (한국고분자학회:학술대회논문집)
- 2006.10a
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- Pages.3-4
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- 2006
Magnetic Properties of Modified DNAs
- Do, Eui-Doo (Department of Chemistry and Center for Electro-and Photo-Responsive Molecules, Korea University) ;
- Lee, Chang-Hoon (Department of Chemistry and Center for Electro-and Photo-Responsive Molecules, Korea University) ;
- Kwon, Young-Wan (Department of Chemistry and Center for Electro-and Photo-Responsive Molecules, Korea University) ;
- Choi, Dong-Hoon (Department of Chemistry and Center for Electro-and Photo-Responsive Molecules, Korea University) ;
-
Jin, Jung-Il
(Department of Chemistry and Center for Electro-and Photo-Responsive Molecules, Korea University)
;
- Oh, Dong-Keun (Systems Research Team, National Fusion Research Center) ;
- Nishide, Hiroyuki (Department of Applied Chemistry, Waseda University) ;
- Kurata, Takashi (Department of Applied Chemistry, Waseda University)
- Published : 2006.10.13
Abstract
Natural DNAs in dry state, i.e., A-DNAs, when intercalated with low levels of stable organic free radicals or complexed with low levels of Au(III), are attracted at room temperature to commercial magnets, whereas those containing high levels of intercalators or Au(III) are not. This surprising observation is explained by the EPR spectra and SQUID measurement of magnetization of the modified DNAs. It is conjectured that A-DNAs are morphologically heterogeneous containing ordered and disordered regions. The ordered regions appear to strongly mediate magnetic interactions between spins through their
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