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  • Ion trapping in crystalline domains of electrochemical transistors can be used to create a device capable of both volatile and non-volatile operation.

    • Donald A. Robinson
    • A. Alec Talin
    News & Views
  • An elastic conductive ink — which is made of conductive fillers suspended in an emulsified elastomer matrix — can be used to print three-dimensional elastic conductors.

    • Tao Zhou
    • Hyunwoo Yuk
    News & Views
  • By selectively engineering the surface roughness of micro-light-emitting-diode chips, and thus the strength of the van der Waals forces that bond them to a substrate, large-area displays can be created via a fluidic-assisted transfer method.

    • Young Rag Do
    • Gang Yeol Yoo
    News & Views
  • Multilayer hexagonal boron nitride can be synthesized over large areas and used to enhance mobility in graphene heterostructures, illustrating the potential of the material as an insulator in commercial two-dimensional electronics.

    • Don N. Futaba
    News & Views
  • An acoustoelectric amplifier based on a three-layer heterostructure design could be used to create all-acoustic radiofrequency microsystems.

    • Siddhartha Ghosh
    News & Views
  • An embedded 3D printing technique — which uses an alginate–polyacrylamide hydrogel supporting matrix and a conductive silver–hydrogel ink — can be used to fabricate hydrogel electronic devices containing various different embedded circuits.

    • Shaoxing Qu
    News & Views
  • By controlling ion-dynamic capacitance, electrolyte-gated transistors can be switched between different operating modes, providing flexible neural network implementations.

    • Radu A. Sporea
    News & Views
  • A compact and energy-efficient magnetoresistive random-access memory (MRAM) technology could help lower the power consumption of data storage and management.

    • Atsufumi Hirohata
    News & Views
  • High-electron-mobility transistors with a diamond coating on their top and side surfaces can effectively dissipate heat in high-power electronics applications.

    • Jae-Hyun Ryou
    • Sukwon Choi
    News & Views
  • A stretchable and conductive micrometre-thick elastic conductor, which has a controlled morphology of microcracks, can be used in on-skin and implantable sensor applications.

    • Jihong Min
    • Yu Song
    • Wei Gao
    News & Views
  • A reconfigurable device based on two-dimensional materials can function as both a transistor and a memory.

    • Dayane Reis
    News & Views
  • A flexible sensor interface integrated into different commercial face masks can be used to measure breathing patterns, skin temperature, physical activity and the fit of the mask itself.

    • Muhammad Adeel
    • Yasin Cotur
    • Firat Güder
    News & Views
  • Artificial synapses made of indium selenide can exhibit tunable temporal dynamics, which can be used to achieve multisensory fusion and multiple-timescale feature extraction in reservoir computing.

    • Zhongming Wei
    News & Views
  • A hybrid superconducting optoelectronic circuit could be used to develop spiking neuromorphic networks that operate at the single-quantum level.

    • Alessandro Casaburi
    • Robert H. Hadfield
    News & Views