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Volume 6 Issue 4, April 2007

The magnetization direction of a vortex core in a magnetic disk can be switched by an electrical current.

Cover design by David Shand.

Letter by Yamada et al.

Volume 6 Issue 4

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Editorial

  • Given that stringent safety checks already exist for new medicines, does the FDA really need a nanotech task force?

    Editorial

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Commentary

  • Academic participation in nanomedicine research is welcomed by European industries. The recipe for success may or may not include creativity, but it will certainly require awareness of drug development and approval processes.

    • Mike Eaton
    Commentary
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Research Highlights

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News & Views

  • The magnetization direction in the centre of a submicrometre magnetic disk can now be switched by an electrical current. This discovery demonstrates the potential of realizing all-electrically controlled magnetic memory devices.

    • Russell P. Cowburn
    News & Views

  • Multiferroics might hold the future for the ultimate memory device. The demonstration of a four-state resistive memory element in a tunnel junction with multiferroic barriers represents a major step in this direction.

    • J. F. Scott
    News & Views

  • To achieve the often-promised capabilities of polymer nanocomposites, the properties of the interfacial region between polymer and filler must be controlled. Model nanocomposites offer a path towards understanding the physics of this region.

    • Linda Schadler
    News & Views

  • The integration of semiconducting nanowires and metallic nanoparticles in a single device leads to a biosensor with enhanced sensitivity that detects molecules over a broad range of concentrations.

    • Catherine J. Murphy
    News & Views

  • The assembly of nanoparticles in polymer films is driven by a complex combination of both enthalpic and entropic effects. Careful control of these factors during preparation can lead to finely structured composites.

    • Manfred Stamm
    • Jens-Uwe Sommer
    News & Views

    • Philip Ball
    News & Views
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Progress Article

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Letter

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Article

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Corrigendum

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In This Issue

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