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Volume 18 Issue 3, March 2019

Volume 18 Issue 3

Graphene records infraslow brain waves

Arrays of graphene microtransistors are used to record infraslow cortical brain activity. The reduced signal drift and the array compatibility with optical imaging techniques make these devices useful for monitoring of brain physiology.

See Masvidal-Codina et al. and Hartings News & Views

Image: Dámaso Torres, Institut Català de Nanociència i Nanotecnologia (ICN2, a center of BIST and CSIC). Cover Design: David Shand.

Editorial

  • Editorial |

    Much academic and industrial effort has been devoted to the study of multiferroics, but if related technologies are to have real-world impact, market awareness and reproducibility are also key.

Comment

  • Comment |

    Topological structures have considerable potential in nanoelectronics and new device concepts. They are key to the design and understanding of novel functionalities in ferroic materials — that is, materials that have one or more types of built-in order such as magnetic, ferroelectric, ferroelastic and multiferroic materials.

    • Jan Seidel

Q&A

  • Q&A |

    Nian Sun, a professor at Northeastern University (Electrical and Computer Engineering Department), talks to Nature Materials about the potential applications of multiferroic materials, and issues associated with commercializing these technologies.

    • Stephen Shevlin

News & Views

  • News & Views |

    Microparticle debris from prosthetic implants has been shown to induce a type 2 inflammatory response through a Bruton’s tyrosine kinase-dependent signalling pathway.

    • Dimitri A. de Kouchkovsky
    • , Sourav Ghosh
    •  & Carla V. Rothlin
  • News & Views |

    Use of graphene in a transistor configuration offers an alternative to metal electrodes for the recording of ultraslow neural potentials that occur in neurologic diseases.

    • Jed A. Hartings
  • News & Views |

    A DNA nanodevice performs pathfinding search and computes the solution of two-dimensional DNA origami puzzles.

    • Georg Seelig
  • News & Views |

    A hybrid state of photons and electronic excitations in semiconductor quantum wells shows nonlinear behaviour at the level of single or few quanta, thus opening the door to the realization of photonic nonlinear quantum devices employing semiconductor technologies.

    • Dario Gerace
    • , Fabrice Laussy
    •  & Daniele Sanvitto

Review Articles

  • Review Article |

    Magnetoelectric multiferroics, where magnetic properties are manipulated by electric field and vice versa, could lead to improved electronic devices. Here, advances in materials, characterisation and modelling, and usage in applications are reviewed.

    • N. A. Spaldin
    •  & R. Ramesh

Letters

  • Letter |

    Confined exciton–polaritons in semiconductor-based quantum wells can give rise to correlations slightly below the level of classical coincidence counts under resonant excitation, such that single or few polariton excitations are sufficient to modify the statistics of the radiation going through the system.

    • Aymeric Delteil
    • , Thomas Fink
    •  & Ataç İmamoğlu

Articles

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