Scientists from the Canadian Centre for Microscopy on the McMaster campus, working with a colleague from Université Pierre et Marie Curie in Paris, France, developed the new method by using transmission electron microscopy. It’s a technique so powerful that it can be used to visualize and identify individual atoms at magnifications of several million times.
The centre’s mandate is to provide unique electron microscopy capabilities and expertise to researchers working on a broad range of national and international materials-research projects. It is home to one of the world's most advanced and powerful electron microscopes, the Titan 80-300 Cubed.
The new research appears in the prestigious journal Nature. The scientists describe how they developed the method for looking at metal oxides, in this case strontium titanate, a notoriously challenging surface to study, but one that holds promise for many applications, including efficient lighting, energy generation and future information technology systems.
Gianluigi Botton, scientific director of the centre, said that until now, it had been nearly impossible to completely elucidate the atomic structure of the surface oxide from that of the material itself, due to the physical limitations of existing techniques.
Now, having shown that transmission electron microscopy can do the job, scientists can apply the same method to other challenging surfaces, with the promise of making it easier to split water to extract hydrogen for fuel, or to invent completely new types of electronic devices, for example.
“Surfaces are all around us,” Botton explained. “Understanding their properties at this level can open up many possibilities.”
For more information, please contact:Wade Hemsworth
Wade Hemsworth | Newswise Science News
Spider silk key to new bone-fixing composite
20.04.2018 | University of Connecticut
Diamond-like carbon is formed differently to what was believed -- machine learning enables development of new model
19.04.2018 | Aalto University
University of Connecticut researchers have created a biodegradable composite made of silk fibers that can be used to repair broken load-bearing bones without the complications sometimes presented by other materials.
Repairing major load-bearing bones such as those in the leg can be a long and uncomfortable process.
Study published in the journal ACS Applied Materials & Interfaces is the outcome of an international effort that included teams from Dresden and Berlin in Germany, and the US.
Scientists at the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) together with colleagues from the Helmholtz-Zentrum Berlin (HZB) and the University of Virginia...
Novel highly efficient and brilliant gamma-ray source: Based on model calculations, physicists of the Max PIanck Institute for Nuclear Physics in Heidelberg propose a novel method for an efficient high-brilliance gamma-ray source. A giant collimated gamma-ray pulse is generated from the interaction of a dense ultra-relativistic electron beam with a thin solid conductor. Energetic gamma-rays are copiously produced as the electron beam splits into filaments while propagating across the conductor. The resulting gamma-ray energy and flux enable novel experiments in nuclear and fundamental physics.
The typical wavelength of light interacting with an object of the microcosm scales with the size of this object. For atoms, this ranges from visible light to...
Stable joint cartilage can be produced from adult stem cells originating from bone marrow. This is made possible by inducing specific molecular processes occurring during embryonic cartilage formation, as researchers from the University and University Hospital of Basel report in the scientific journal PNAS.
Certain mesenchymal stem/stromal cells from the bone marrow of adults are considered extremely promising for skeletal tissue regeneration. These adult stem...
In the fight against cancer, scientists are developing new drugs to hit tumor cells at so far unused weak points. Such a “sore spot” is the protein complex...
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