This Perspective outlines a framework for clinicians navigating physiologic data from wearable devices, referred to as “results of unknown significance,” including the need for universal evidentiary standards and shared language.
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Magnetic dopants help quantum dots use light for chemical reactions
Scientists at Los Alamos National Laboratory have demonstrated a new quantum-dot mechanism that could significantly expand the reach of light-driven chemistry. By introducing magnetic manganese dopants into semiconductor quantum dots, the team created an ultrafast spin-exchange pathway that captures hot-electron energy before it is lost as heat and uses it to drive chemical reduction.
The work, published in Nature Communications, provides a direct demonstration that magnetic dopants can enable efficient hot-electron reduction in quantum dots. Using methyl viologen as a model molecular acceptor, the researchers showed that manganese-doped quantum dots can transfer electrons significantly faster than undoped particles and can drive reduction even when conventional band-edge energetics are unfavorable.
“Our study shows that magnetic dopants can do much more than modify the optical properties of quantum dots,” says Victor Klimov, laboratory fellow at Los Alamos and principal investigator on the project. “They can capture hot-exciton energy on ultrafast time scales and redirect it into useful chemistry, which opens a fundamentally new route to high-energy photoreduction.”
Kreios Space to fly VLEO demonstration in NanoAvionics bus
SAN FRANCISCO – Spanish startup Kreios Space announced plans Aug. 4 to conduct the first very low Earth orbit (VLEO) demonstration of its air-breathing electric propulsion (ABEP) in a Kongsberg NanoAvionics microsatellite bus.
“Partnering with NanoAvionics in our first in-orbit flight provides us with a satellite bus and market-leading experience necessary to allow us to test our new technology in confidence,” Kreios CEO Adrián Senar said in a statement.
Senar declined to comment on the timing of the flight. Kreios’ website says the “the first-ever ABEP-based VLEO mission,” will occur in 2027 with a second flight in 2028.
AI, Quantum Computing, Nanotech Convergence Reshapes Innovation
Artificial intelligence, quantum computing and nanotechnology are converging to reshape innovation — and organizations that understand how to harness them could gain a competitive edge.
That’s according to Chuck Brooks, president of Brooks Consulting International and one of Executive Mosaic’s GovCon Experts, in a recent piece exploring how the technologies are transforming research and development while accelerating advances in healthcare, cybersecurity, defense and other industries.
Brooks highlights AI’s role in accelerating R&D, nanotechnology’s potential in wearables and sensors, and quantum computing’s ability to solve complex problems beyond the reach of classical computers.
AI redesign helps enzymes evolve beyond natural limits
Researchers showed that AI-redesigned botulinum neurotoxin proteases provided more stable starting points for directed evolution, allowing enzymes to access beneficial mutations that were poorly tolerated in wild-type backgrounds. In BoNT/E models, the approach improved activity, evolvability, and specificity, including an ataxin-2-targeting variant with markedly reduced cleavage of the native SNAP25 substrate.
