Wires, tubes and brushes make it possible to build and maintain the machines and devices we use on a daily basis. Now, with help from a surprising source, these same building blocks can easily be created on a scale 10,000 times smaller than the period at the end of this sentence.
LEAD NANOPARTICLES — Scanning electron microscopy images of lead nanoparticles created with the electrodeposition technique. Shaped nanoparticles such as icosahedrons (a) and decahedrons (b) can be produced with voltages lower than 1.2 volts while elongated structures such as tripods (c) and nanobrushes (d) appear at higher voltages. The bar at the top of each image represents 500 nanometers (billionths of an inch).
Researchers at Argonne have figured out the basics of using electrochemistry to control the architecture of nanocrystals – small structures with dimensions in billionths of meters. Their findings, published in the March 3 edition of the Journal of the American Chemical Society, provide a practical method of generating large quantities of architecture-controlled nanocrystals, such as superconductors, ferromagnets and noble metals.
"The architectures of the nanocrystals are mainly controlled by applied voltages," said lead scientist Zhili Xiao of Argonnes Materials Science Division and Northern Illinois Universitys Physics Department. "This gives us much greater control over the growth conditions of the nanocrystals. We were able to create a great variety of structures with greater convenience and predictability compared with more traditional methods."
Margret Chang | Argonne
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29.03.2017 | DOE/Oak Ridge National Laboratory
Nanomaterial makes laser light more applicable
28.03.2017 | Christian-Albrechts-Universität zu Kiel
The Institute of Semiconductor Technology and the Institute of Physical and Theoretical Chemistry, both members of the Laboratory for Emerging Nanometrology (LENA), at Technische Universität Braunschweig are partners in a new European research project entitled ChipScope, which aims to develop a completely new and extremely small optical microscope capable of observing the interior of living cells in real time. A consortium of 7 partners from 5 countries will tackle this issue with very ambitious objectives during a four-year research program.
To demonstrate the usefulness of this new scientific tool, at the end of the project the developed chip-sized microscope will be used to observe in real-time...
Astronomers from Bonn and Tautenburg in Thuringia (Germany) used the 100-m radio telescope at Effelsberg to observe several galaxy clusters. At the edges of these large accumulations of dark matter, stellar systems (galaxies), hot gas, and charged particles, they found magnetic fields that are exceptionally ordered over distances of many million light years. This makes them the most extended magnetic fields in the universe known so far.
The results will be published on March 22 in the journal „Astronomy & Astrophysics“.
Galaxy clusters are the largest gravitationally bound structures in the universe. With a typical extent of about 10 million light years, i.e. 100 times the...
Researchers at the Goethe University Frankfurt, together with partners from the University of Tübingen in Germany and Queen Mary University as well as Francis Crick Institute from London (UK) have developed a novel technology to decipher the secret ubiquitin code.
Ubiquitin is a small protein that can be linked to other cellular proteins, thereby controlling and modulating their functions. The attachment occurs in many...
In the eternal search for next generation high-efficiency solar cells and LEDs, scientists at Los Alamos National Laboratory and their partners are creating...
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are less stable. Now researchers at the Technical University of Munich (TUM) have, for the first time ever, produced a composite material combining silicon nanosheets and a polymer that is both UV-resistant and easy to process. This brings the scientists a significant step closer to industrial applications like flexible displays and photosensors.
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are...
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