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High Resolution Image Download MS PowerPoint Slide We have investigated the magnetotransport properties of 5 nm CoFe 2 O 4 nanoparticles aligned into one-dimensional chains using a DNA guide. The chemically synthesized particles were capped with a positively charged ligand molecule that drives the electrostatic assembly when incubated in solutions containing DNA. To test the transport, these nanoparticle-coated DNA strands were adsorbed onto microfabricated devices. Large room-temperature magnetoresistance is observed at high fields in these samples.
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Kinsella et al. (2008) studied this question.
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