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Volume 5 Issue 10, October 2022

Sweat sensors go it alone

A wearable sweat sensor that integrates electrochemical sensors, a stretchable battery and an electrochromic display can directly display the concentration of various electrolytes or metabolites in sweat without any wired or wireless connection to external devices. The photograph on the cover shows the stretchable epidermal sweat-sensing patch, which can be worn during exercise and can provide real-time electrochemical data.

See Yin et al. and News & Views by Bandodkar

Image: Lu Yin and Muyang Lin, University of California San Diego. Cover Design: Lauren Heslop.


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Research Highlights

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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
  • With the help of two different kinds of memristor, a low-power, fully analogue reservoir computing system can be created for use in high-accuracy arrhythmia detection and dynamic gesture recognition.

    • Xiaobing Yan
    News & Views
  • Wearable sweat-sensing devices that use self-powered sensors, electrochromic displays and thin-film batteries can operate free from any connections to bulky external electronics.

    • Amay J. Bandodkar
    News & Views
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Research Briefings

  • A monocrystalline native oxide dielectric, β-Bi2SeO5, with a high dielectric constant has been synthesized by oxidizing a two-dimensional (2D) semiconductor, Bi2O2Se. In 2D transistors, the ultrathin β-Bi2SeO5 dielectric demonstrates sub-0.5-nm equivalent oxide thickness and leakage current below the low-power limit, meeting the requirements of the International Roadmap for Devices and Systems.

    Research Briefing
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Amendments & Corrections

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