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Volume 18 Issue 4, April 2023

Mathematics at the speed of light

The cover image depicts the continuous reflection of a light signal between a semi-transparent mirror and a nanostructured dielectric substrate. The optimized shape of the dielectric unit cell implements a matrix multiplication to the signal corresponding to the mathematical problem of interest.

See Cordaro et al.

Image: Ella Maru Studio. Cover Design: Amie Fernandez


  • Waste containing nanomaterials — or nanowaste — is an emerging safety concern worldwide, warranting specific environmentally sound waste management and regulation.

    • Fabienne Schwab
    • Barbara Rothen-Rutishauser
    • Alke Petri-Fink


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News & Views

  • High-Tc superconducting nanowire detectors can detect single photons of telecom wavelengths at a temperature of 25 K and may enable applications in quantum sensing and quantum information processing.

    • Jin Chang
    • Iman Esmaeil Zadeh
    News & Views
  • Combination of physical tissue expansion and super-resolution radial fluctuations achieves nanoscale resolution in pathology specimens with LED-based widefield microscopy.

    • Brendan R. Gallagher
    • Yongxin Zhao
    News & Views
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Matters Arising

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Research Briefings

  • Biodegradable polylactic acid (PLA) microplastics are shown to undergo enzymatic hydrolysis by lipases found in the human gut to generate PLA oligomers, which self-aggregate to form nanoplastic particles. The oligomers and their nanoparticles bioaccumulated in multiple organs of a mouse model and caused acute intestinal inflammation.

    Research Briefing
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Amendments & Corrections

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