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MIT has been honored with the UNESCO Medal for contributions to the development of nanoscience and nanotechnologies by the United Nations Educational, Scientific and Cultural Organization (UNESCO). Established in 2010, the UNESCO Medal has awarded over 30 prominent scientists and public figures for their individual contributions to advancing the fields of nanoscience and nanotechnologies. This year MIT shares the distinction, along with St. Petersburg State University of Information Technologies in Russia, of being the first organization to be recognized. In addition to the two universities, four eminent scientists from Korea, the United Arab Emirates, Ukraine, and the United Kingdom, were recipients of the medal. An awards ceremony was held on Oct. 11 at the UNESCO headquarters in Paris, France. Institute Professor Mildred (Millie) Dresselhaus, a nanoscience pioneer who herself has won many recognitions including the U.S. Presidential Medal of Freedom and the L'Oreal-UNESCO Award for Women in Science, made the trip at the invitation of President Rafael Reif to accept the medal on behalf of MIT. “Using science and technology as a way to bring people together is something MIT has learned to do really well,” says Dresselhaus. “Our faculty, staff, and students come together from countries all over the world with diverse technical backgrounds to work across the many academic departments and laboratories on campus. This culture of interdisciplinary collaboration enables us to work for common goals, so it made sense to me that MIT was recognized as an institution. This should serve as encouragement to move forward as rapidly as possible to complete MIT.nano and to achieve some exceptionally great outcomes through this initiative as it comes to fruition.” The award will eventually be displayed within the public spaces of MIT.nano — the 214,000-square-foot center for nanoscience and nanotechnology that is currently under construction in the heart of the MIT campus — after the building opening in June 2018, says Vladimir Bulović, faculty lead of the project. The UNESCO Medal is an initiative of the International Commission responsible for developing the Encyclopedia of Life Support Systems theme on nanoscience and nanotechnologies. Each year, the medal recognizes those making significant contributions in the field in an effort to showcase the tremendous benefits of progress being made. MIT joins a distinguished group of scientists who have received the medal thus far, including Nobel Prize-winners in physics Zhores Alferov and Isamu Akasaki.
Selenium (Se) is a metalloid element found in trace amounts in the earth’s crust and which has found extensive application due to its semiconducting properties. The use in photocopiers, microelectronic circuits and other applications has created a demand which makes selenium a valuable element. Selenium also shows biological activity with a strong dependence on concentration: it is essential in low doses for mammalian organisms but becomes strongly toxic to humans over a certain intake threshold. Efficient removal of selenium from wastewater being discharged in the environment is imperative and the development of cost-effective procedures to achieve this needs to be addressed. Under typical environmental conditions Se can be found in a variety of oxidation states (-II, 0, IV, and VI). The former two are insoluble and give rise to little toxicity on account of their low mobility in aqueous phases. The latter two however are found as highly mobile oxyanions which are the principal targets for Se removal. Finding the right reagent Ling et al have used an established strategy involving the reduction of Se(IV) to the insoluble Se(0) form, but their choice of nanoscale zero-valent iron (nZVI) as the reagent has led to a superior method of wastewater decontamination being developed. As little as 0.2 g L-1 nZVI can achieve over 99% removal of high levels of Se(IV) within 5 hours. Additionally, on account of the magnetic properties of the nZVI its recovery could be achieved simply with the use of a magnet, leaving pure elemental selenium as the product. The potential for elemental selenium recovery and recycling provides grounding for the method becoming cost-neutral or even profitable. Furthermore, in depth studies were conducted to elucidate the pathway taken by the decontamination process, with attention focused on the nano- and microstructure of the resulting Se particles and of the nZVI before and after reaction. The nZVI particles consist of a metallic iron core surrounded by an oxide layer which under aqueous conditions is capable of performing adsorption of Se oxyanions, thus paving the way for their reduction by the metallic core. Two types of Se structures result following the reductive process: almost perfectly spherical nanoparticles and nano-needles, both being attributed to known forms of elemental Se: amorphous and trigonal, respectively. A complete account of the Se(IV) reduction and Se(0) structure formation mechanisms operating in this process is available in the full article, free to view for a limited time:* Genesis of pure Se(0) nano- and micro-structures in wastewater with nanoscale zero-valent iron (nZVI) Environ. Sci.: Nano, 2016, Advance Article DOI: 10.1039/C6EN00231E About the webwriter Dan Mercea is a PhD student in the Fuchter group at Imperial College London. He is working on developing enantioselective FLP catalysis. —————- *Access is free until 9th December 2016 through a registered RSC account – register here
Carbon nanotubes (CNTs) being highly electrically conductive along the tube axis, have gained great research interests in recent years for connecting two conducting electrodes at the nanoscale - where the CNTs can be integrated into a micro- or nanoelectronic system. Therefore, the orientational control of CNTs has drawn a great deal of research interest in nanotechnology. Researchers now have developed a technique to bridge two electrical conductors by assembling CNTs guided by liquid crystals.
Time-resolved photoemission electron microscopy sheds light on the generation and evolution of plasmonic vortices.
Researchers develop groundbreaking process for creating ultra-selective separation membranes: Discovery could greatly improve energy-efficiency of separation and purification processes in the chemical and petrochemical industries
A team of researchers, led by the University of Minnesota, has developed a groundbreaking one-step, crystal growth process for making ultra-thin layers of material with molecular-sized pores. Research...
Harris & Harris Group Issues Its Financial Statements as of December 31, 2016, Posts Its Annual Shareholder Letter, And Will Host a Conference Call for Shareholders on Friday, March 17, 2017
Harris & Harris Group, Inc. (NASDAQ:TINY), reported today that, as of December 31, 2016, its net asset value and net asset value per share were $72,255,610 and $2.34, respectively. The Company's Annu...
The tendency for some nanoparticles to agglomerate or cluster into denser masses can lead to homogeneity and performance issues in their subsequent use. Existing methodologies to de-agglomerate them d...
Nanogate Expands Sustainability Management: Nanogate publishes a statement of compliance with the German Sustainability Code for the first time
Nanogate AG, a leading global specialist for design-oriented high-tech surfaces and components, has submitted its first statement of compliance with the German Sustainability Code (Deutscher Nachhalti...
Results from ptychography experiments on InGaN/GaN structures could help in the development of cheaper, more efficient LEDs in the future.
Optical fingerprint can reveal pollutants in the air: Researchers at Chalmers University of Technology have proposed a new, sophisticated method of detecting molecules with sensors based on ultra-thin nanomaterials
More efficient sensors are needed to be able to detect environmental pollution. Researchers at Chalmers University of Technology have proposed a new, sophisticated method of detecting molecules with s...
Encapsulation technique uniformly disperses magnetite particles in a poly(ethylene) matrix, allowing for better control of material properties.
In a significant advance, University of Massachusetts Amherst engineers have established electrical surface treatment of conducting thin films as a physical processing method to reduce surface roug Julia Majors - AIP News Staff Sequence of snapshots from a computer simulation of electric-field-driven morphological evolution of a copper thin film, demonstrating current-induced smooth surface. CREDIT: Du and Maroudas
Categories: National Nanomanufacturing Network
Technique might help make photonic metasurfaces with tuneable optical properties.
James Tour, the T.T. and W.F. Chao Professor of Chemistry, professor of computer science and of materials science and nanoengineering at Rice University, will testify before the U.S. House Committee o...
Leti to Release Versatile SensiNact IoT Platform for Open-Source Development: Middleware Collects, Aggregates and Secures Scripting of Data From Multiple Devices via Virtually Any IoT Communication Protocol
Leti, a research institute of CEA Tech, today announced the release of its middleware for the SensiNact Internet of Things (IoT) platform for open-source development.
One of the keys to building electric cars that can travel longer distances and to powering more homes with renewable energy is developing efficient and highly capable energy storage systems.
The U.S. Department of Energy's Ames Laboratory has successfully created the first pure, single-crystal sample of a new iron arsenide superconductor, CaKFe4As4, and studies of this material have calle...
TriboTEX has launched a Kickstarter campaign to bring to the market their anisotropic flat nanoparticle-with functionally different sides ( sticlky/Slippery) which creates self-forming films and reve...
Three UT Austin Professors Named Fellows of the National Academy of Inventors - UT News | The University of Texas at Austin
UT News | The University of Texas at AustinThree UT Austin Professors Named Fellows of the National Academy of InventorsUT News | The University of Texas at AustinSreenivasan has published more than 100 technical articles and holds more than 100 U.S. patents in the area of nanomanufacturing. He has received several awards for his work including the Technology Pioneer Award by the World Economic Forum (2005), ...and more »
A successful production trial by Australian battery technology innovator Nano-Nouvelle has proved its pioneering nanotechnology supports industrial-scale manufacture, with output rates...