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  • Nanoscale systems that release small molecules have potential therapeutic and industrial uses, but can result in low numbers of molecules reaching their target. A release system triggered by mechanical force offers a fresh approach.

    • Iwona Nierengarten
    News & Views
  • Microscopic magnetic fields form in non-magnetic materials when light makes the atoms rotate. A similar macroscopic effect has long been known, but proof of its atomic equivalent could give rise to ultrafast data processing.

    • Carl P. Romao
    • Dominik M. Juraschek
    News & Views
  • Animals that receive an inhibitor of an antiviral cell-death response called necroptosis are less likely to die of influenza even at a late stage of infection. This has implications for the development of therapies for respiratory diseases.

    • Nishma Gupta
    • John Silke
    News & Views
  • The sensing of bitter taste results from the complex interplay of many chemical cues and a range of receptors. It emerges that this complexity might be built-in even at the level of individual receptors.

    • Antonella Di Pizio
    News & Views
  • Scientists have designed a liquid that behaves as both a solid and a fluid owing to the presence of tiny gas-filled capsules. An unusual relationship between pressure and volume enables this material to grasp fragile objects.

    • P.-T. Brun
    News & Views
  • The idea that three different free radicals could be used together to carry out specific steps in a chemical reaction has long been implausible. A ‘radical sorting’ strategy now achieves this feat to make organic molecules.

    • Kenneth F. Clark
    • John A. Murphy
    News & Views
  • Clever manipulation of electrons has enabled scientists to change a key property of light emitted by a device using electrically controlled magnetization. The method could lead to stable and energy-efficient information transfer.

    • Satoshi Hiura
    News & Views
  • Reconstructions of the strength of a powerful current that circles the South Pole reveal that it has undergone no long-term change in the past five million years, even though Earth cooled substantially over that time.

    • Natalie J. Burls
    News & Views
  • Depleting an expanding pool of aberrant stem cells in aged mice using antibody therapy has been shown to rebalance blood cell production, diminish age-associated inflammation and strengthen acquired immune responses.

    • Yasar Arfat T. Kasu
    • Robert A. J. Signer
    News & Views
  • A smart adhesive patch that wicks sweat away from electronics embedded in its centre offers comfortable and reliable sensing of the wearer’s biometrics or environment without the risk of perspiration damaging the devices.

    • Yifan Rao
    • Nanshu Lu
    News & Views
  • A population of neurons that engages mechanisms of the innate immune system during memory formation has been uncovered in mice. Surprisingly, inflammatory signalling might pave the way for long-term memory.

    • Benjamin A. Kelvington
    • Ted Abel
    News & Views
  • What effects will climate change have on insect communities? Analyses of data collected over decades robustly document consequences specific to bee populations, and this evidence might aid future conservation efforts.

    • Nicole E. Miller-Struttmann
    News & Views
  • Organelles called lysosomes fuse with cargo-carrying vesicles and degrade the cargo molecules. How lysosomes maintain their size despite constant vesicle fusion was unclear, but now factors that aid organelle fission have been found.

    • Shilpa Gopan
    • Thomas J. Pucadyil
    News & Views
  • Complex magnetic structures called skyrmions have been generated on a nanometre scale and controlled electrically — a promising step for fast, energy-efficient computer hardware systems that can store large amounts of data.

    • Qiming Shao
    News & Views
  • The central nervous system’s astrocyte cells respond to injury and disease. The finding that they form molecular memories of certain responses, and that these modify inflammatory signalling, sheds light on autommunity.

    • Michael V. Sofroniew
    News & Views
  • Understanding the factors that drive formation of particular types of cancer can aid efforts to develop better diagnostics or treatments. The identification of a bacterial subspecies with a connection to colon cancer has clinical relevance.

    • Cynthia L. Sears
    • Jessica Queen
    News & Views