New Scientist: Argento Diagnostics, a company spun off from the UK’s National Physical Laboratory, has used nanotechnology and microfluidics to tackle a problem in the training of elite athletes: How do you monitor the levels of key metabolic molecules without having to send samples to a lab? Argento’s solution is a handheld device that can take a sample of an athlete’s blood, saliva, or urine and send it through microfluidic channels, where it mixes with silver nanoparticles and larger magnetic nanoparticles, both of which are coated with antibodies. In the presence of a biomolecule of interest, the silver nanoparticles stick to the magnetic nanoparticles. Flushing off the silver nanoparticles creates a concentration of silver ions whose charge is proportional to the amount of biomolecule in the sample.
The finding that the Saturnian moon may host layers of icy slush instead of a global ocean could change how planetary scientists think about other icy moons as well.
Modeling the shapes of tree branches, neurons, and blood vessels is a thorny problem, but researchers have just discovered that much of the math has already been done.
January 29, 2026 12:52 PM
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