Light out of thin air.
Most commercial chemicals require catalysts to produce, which normally take the form of metal nanoparticles. A team at Vienna University of Technology have shown how the atomic scale surface structures of such catalysts can critically influence their reactive properties. They visualise the oxidation of hydrogen on a single rhodium nanoparticle in real time.
Their insights are published in Science: https://science.sciencemag.org/content/early/2021/05/19/science.abf8107
#sciencenews #nano #physics
Most commercial chemicals require catalysts to produce, which normally take the form of metal nanoparticles. A team at Vienna University of Technology have shown how the atomic scale surface structures of such catalysts can critically influence their reactive properties. They visualise the oxidation of hydrogen on a single rhodium nanoparticle in real time.
Their insights are published in Science: https://science.sciencemag.org/content/early/2021/05/19/science.abf8107
#sciencenews #nano #physics
Science
Resolving multifrequential oscillations and nanoscale interfacet communication in single-particle catalysis
In heterogeneous catalysis research, the reactivity of the individual nanofacets of single particle is typically not resolved. We applied in situ field electron microscopy (FEM) to the apex of a curved rhodium crystal (radius of 650 nanometers), providing…
Down the nano-hole.
A sensing technique developed at the University of Cambridge has been used to reveal the fundamental physics governing the transport of DNA threads through nanopores. They assembled DNA molecules with ‘bumps’ at specific locations that could be used to track the passage of the molecule.
The study is published in Nature Physics: http://dx.doi.org/10.1038/s41567-021-01268-2
#sciencenews #genetics #nano
A sensing technique developed at the University of Cambridge has been used to reveal the fundamental physics governing the transport of DNA threads through nanopores. They assembled DNA molecules with ‘bumps’ at specific locations that could be used to track the passage of the molecule.
The study is published in Nature Physics: http://dx.doi.org/10.1038/s41567-021-01268-2
#sciencenews #genetics #nano
Nature Physics
Dynamics of driven polymer transport through a nanopore
Nature Physics - A study of the dynamics of polymer translocation through synthetic nanopores provides a direct observation of tension propagation—a non-equilibrium description of the...
On the brink of chaos.
Scientists at the University of Sydney and Japan's National Institute for Material Science have discovered that an artificial network of nanowires can be tuned to respond in a brain-like way to electrical stimuli. By keeping the network of nanowires in a chaotic, brain-like state optimized its performance.
Their insights are published in Nature Communications: http://dx.doi.org/10.1038/s41467-021-24260-z
#sciencenews #nano #AI
Scientists at the University of Sydney and Japan's National Institute for Material Science have discovered that an artificial network of nanowires can be tuned to respond in a brain-like way to electrical stimuli. By keeping the network of nanowires in a chaotic, brain-like state optimized its performance.
Their insights are published in Nature Communications: http://dx.doi.org/10.1038/s41467-021-24260-z
#sciencenews #nano #AI
Nature Communications
Avalanches and edge-of-chaos learning in neuromorphic nanowire networks
Neuromorphic nanowire networks are found to exhibit neural-like dynamics, including phase transitions and avalanche criticality. Hochstetter and Kuncic et al. show that the dynamical state at the...