Science Advances · 23 October 2026 · From issue 56

Multiplexed and implantable fiber sensor for real-time blood monitoring

A flexible fiber sensor measured blood sodium and potassium in real time inside rabbits.

Zhizhi Wu, Fan Chen et al.

Integrity screen: passed (3 checks) Checked 28 October 2026. Read the source

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Also in issue 56 15 papers

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In lab tests, dense ice absorbed meaningful amounts of two simple amino acids.
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Crows make visual choices in 235 milliseconds, twice as fast as primates, with equal accuracy.
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A fast computer program can read gas clouds in quasar light almost as well as slow older methods, in simulations.
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In fruit flies, infection outcomes depend on gene pairings, not on either host or virus genes alone.
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In mice, one brain region learns both sound and sight cues equally, but skill transfer only goes one way.
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In Arctic seafloor mud, ocean-made carbon held far more pollution than land-made carbon.
Nature Communications
Crocodile relatives kept the same warm climate preference for 245 million years instead of adapting.
Science Advances
Picking the higher paying team option is easy by age 10, but picking the safer option improves with age.
PNAS Nexus
In the lab, zirconium molecules held quantum information for up to 87 milliseconds.
Nature Chemistry
No ancient cosmic ripple signal was found, but the search still ruled out many early universe theories.
Physical Review X
A math model shows one repeated growth rule can produce nearly all mollusk shell shapes.
Proceedings of the National Academy of Sciences
Watching nature videos, human brains track actions more than who is in them or where.
Proceedings of the National Academy of Sciences