Feed aggregator

Kellogg researchers develop new nanoparticle with potential to treat ocular cancer: Using nanoparticles to kill tumor cells inside the eye

Nanotech-Now - February 21, 2016 - 7:45am
Researchers at the University of Michigan Kellogg Eye Center have developed a new nanoparticle that uses a tumor cell's protective mechanism against itself -- short-circuiting tumor cell metabolism an...

Material deformation at atomic scale resembles avalanches

Nanotech-Now - February 21, 2016 - 7:45am
The rearrangement of particles in materials during deformation, such as when a spoon is bent, doesn’t occur independently, but rather resembles highly collective avalanches that span the entire materi...

Nanocomposite Sensors Detect Toxic Gases

Nanotech-Now - February 21, 2016 - 7:45am
Iranian researchers from Shiraz University in association with their colleagues from South Korea synthesized nanocomposites to be used in the production of sensors to detect toxic gases and gas pollut...

Iranian Scientists Build Fuel Cells with Appropriate Performance at High Temperature

Nanotech-Now - February 21, 2016 - 7:45am
Iranian researchers from Amirkabir University of Technology produced nanocomposite membranes that are able to improve performance of fuel cells at high temperature.

Oxford Instruments and SPECS Surface Nano Analysis GmbH sign agreement for Nanonis Tramea quantum transport measurement system

Nanotech-Now - February 21, 2016 - 7:45am
Oxford Instruments and SPECS Surface Nano Analysis GmbH have entered an agreement whereby Oxford Instruments NanoScience will be the sole distributor of SPECS Nanonis TrameaTM quantum transport measur...

CU-Boulder ultrafast microscope used to make slow-motion electron movie

Nanotech-Now - February 21, 2016 - 7:45am
University of Colorado Boulder researchers have demonstrated the use of the world's first ultrafast optical microscope, allowing them to probe and visualize matter at the atomic level with mind-bendin...

European Graphene Forum - EGF 2016

InterNano - Upcoming Events - February 19, 2016 - 2:01pm
ConferenceWednesday, June 1, 2016 (All day) to Friday, June 3, 2016 (All day)Paris, France http://www.setcor.org/conferences/EGF-2016 New Materials for the 21st Century Graphene, the single layer carbon based material, is transparent, flexible, and has excellent electronic properties. As it is called “the dream material,” graphene holds innumerable application potential. It is a material that still requires consistent research and at the same time it is a material that may hold the key to future electronics revolution with unlimited industrial value. The 2nd Edition European Graphene Forum will be organized in Paris (France) from the 1st until the 3rd of June 2016. This event will cover the latest technology developments, applications, commercialization progress, end user requirements and challenges for Graphene and 2D Materials. Don't miss on this great opportunity to explore the graphene potential. This event will be co-located with 2nd Nanotech France 2016 annual conference and Exhibition and NanoMetrology France International conference. European Graphene Forum - EGF 2016 will feature: Plenary sessions with internationally renowned speakers, Industrial Sessions with focus on Graphene Commecialization, Extensive parallel thematic workshops, An International exhibition co-located with Nanotech France 2016 and NanoMetrpology France conference. Brokerage event Forum Topics The European Graphene Forum - EGF 2016 topics include: Fundamental Science of Graphene and 2D Materials Beyond Graphene, Growth, synthesis techniques and integration methods, Graphene modification and functionalization, Large scale graphene production and Characterization, Chemistry and biology studies of graphene, Graphene-based nanocomposites: recent scientific studies and applications, Applications of graphene and related 2D materials in electronics/ Flexible Electronics, photonics, spintronics, Optoelectronics and sensors, Applications of graphene in energy, including photovoltaics, energy storage, fuel cells and hydrogen storage, Application of Graphene in biomedical area, Graphene-related health and environment research, Graphene: Innovation and commercialization.

Match-Heads Boost Photovoltaic Efficiency

National Nanomanufacturing Network - February 19, 2016 - 10:21am
Jinkyoung Yoo, The Center for Integrated Nanotechnologies, LANLTiny “match-head” wires act as built-in light concentrators, enhancing solar cell efficiency.

Parvus' nanotechnology treatment reprograms immune cells to reverse autoimmune disease: Research findings published in Nature

Nanotech-Now - February 19, 2016 - 7:45am
• Nanotechnology Approach Restores Glucose Regulation and Motor Function in In Vivo Preclinical Models of Diabetes and Multiple Sclerosis, Respectively; Joint Swelling and Destruction Resolved in In V...

UTA researchers devise more efficient materials for solar fuel cells

Nanotech-Now - February 19, 2016 - 7:45am
University of Texas at Arlington chemists have developed new high-performing materials for cells that harness sunlight to split carbon dioxide and water into useable fuels like methanol and hydrogen g...

Graphene becomes superconductive -- Electrons with 'no mass' flow with 'no resistance'

Nanotech-Now - February 19, 2016 - 7:45am
Graphene is a single-atomic carbon sheet with a hexagonal honeycomb network (Fig. 1). Electrons in graphene take a special electronic state called Dirac-cone where they behave as if they have no mass...

Haydale Win Major Research Grant Awards

Nanotech-Now - February 19, 2016 - 7:45am
Haydale, a leader in the development of enhanced graphene and nanoparticulate materials, has announced that it has been awarded a number of research grants, totalling £350k, which will help accelerate...

UC Riverside Engineering Department Launches Online Degrees

Nanotech-Now - February 19, 2016 - 7:45am
The University of California, Riverside’s Bourns College of Engineering recently announced its partnership with Pearson to create a new online degree program in engineering, with specializations in bi...

MIT Researchers Develop Nanophotonic Technology that Makes Incandescent Bulbs More Efficient

InterNano Industry News - February 19, 2016 - 4:45am
A team of scientists from MIT and Purdue University have developed an innovative technology that combines the warm look of conventional incandescent light bulbs with improved energy efficiency. This...
Categories: Nanotechnology News

A Method of Producing DNA-Encoded Nanoparticles has been Developed

InterNano Industry News - February 19, 2016 - 4:45am
By Jake Wilkinson A novel technique that uses DNA to encode information onto the surface of gold nanoparticles has been developed. This new method can be used to control the 3D structure of...
Categories: Nanotechnology News

Nanowalls for smartphones

InterNano Industry News - February 19, 2016 - 4:45am
Researchers at ETH Zurich have manufactured transparent electrodes for use in touchscreens using a novel nanoprinting process. The new electrodes are some of the most transparent and conductive that have ever been developed. Read More...
Categories: Nanotechnology News

Inexpensive transparent conductors from correlated metal nanostructures

InterNano Industry News - February 19, 2016 - 4:45am
A figure showing the crystal structure of strontium vanadate (orange) and calcium vanadate (blue). The red dots are oxygen atoms arranged in 8 octohedra surrounding a single strontium or calcium atom. Vanadium atoms can be seen inside each octahedron. Credit image: Lei Zhang/Penn State It is usually both interesting and useful when technology identifies multiple paths to the same goal, particularly when a new path has a major advantage, such as a much lower cost and substituting an abundant resource for a limited one. A hat tip to Kurzweil Accelerating Intelligence for reprinting this Penn State news release written by Walt Mills “Transparent metal films for smartphone, tablet and TV displays“: A new material that is both highly transparent and electrically conductive could make large screen displays, smart windows and even touch screens and solar cells more affordable and efficient, according to the Penn State materials scientists and engineers who discovered it. Indium tin oxide, the transparent conductor that is currently used for more than 90 percent of the display market, has been the dominant material for the past 60 years. However, in the last decade, the price of indium has increased dramatically. Displays and touchscreen modules have become a main cost driver in smartphones and tablets, making up close to 40 percent of the cost. While memory chips and processors get cheaper, displays get more expensive from generation to generation. Manufacturers have searched for a possible ITO replacement, but until now, nothing has matched ITO’s combination of optical transparency, electrical conductivity and ease of fabrication. A team led by Roman Engel-Herbert, assistant professor of materials science and engineering, reports … in Nature Materials [abstract] a new design strategy that approaches the problem from a different angle. The researchers use thin — 10 nanometer — films of an unusual class of materials called correlated metals in which the electrons flow like a liquid. While in most conventional metals, such as copper, gold, aluminum or silver, electrons flow like a gas, in correlated metals, such as strontium vanadate and calcium vanadate, they move like a liquid. According to the researchers, this electron flow produces high optical transparency along with high metal-like conductivity. “We are trying to make metals transparent by changing the effective mass of their electrons,” Engel-Herbert said. “We are doing this by choosing materials in which the electrostatic interaction between negatively charged electrons is very large compared to their kinetic energy. As a result of this strong electron correlation effect, electrons ‘feel’ each other and behave like a liquid rather than a gas of non-interacting particles. This electron liquid is still highly conductive, but when you shine light on it, it becomes less reflective, thus much more transparent.” To better understand how they achieved this fine balance between transparency and conductivity, Engel-Herbert and his team turned to a materials theory expert, Professor Karin Rabe of Rutgers University. “We realized that we needed her help to put a number on how ‘liquid’ this electron liquid in strontium vanadate is,” Engel-Herbert said. Rabe helped the Penn State team put together all the theoretical and mathematical puzzle pieces they needed to build transparent conductors in the form of a correlated metal. Now that they understand the essential mechanism behind their discovery, the Penn State researchers are confident they will find many other correlated metals that behave like strontium vanadate and calcium vanadate. Lei Zhang, lead author on the Nature Materials paper and a graduate student in Engel-Herbert’s group, was the first to recognize what they had discovered. “I came from Silicon Valley where I worked for two years as an engineer before I joined the group,” said Zhang. “I was aware that there were many companies trying hard to optimize those ITO materials and looking for other possible replacements, but they had been studied for many decades and there just wasn’t much room for improvement. When we made the electrical measurements on our correlated metals, I knew we had something that looked really good compared to standard ITO.” Currently indium costs around $750 per kilogram, whereas strontium vanadate and calcium vanadate are made from elements with orders of magnitude higher abundance in the earth’s crust. Vanadium sells for around $25 a kilogram, less than 5 percent of the cost of indium, while strontium is even cheaper than vanadium. “Our correlated metals work really well compared to ITO,” said Engel-Herbert. “Now, the question is how to implement these new materials into a large-scale manufacturing process From what we understand right now, there is no reason that strontium vanadate could not replace ITO in the same equipment currently used in industry.” Along with display technologies, Engel-Herbert and his group are excited about combining their new materials with a very promising type of solar cell that uses a class of materials called organic perovskites. Developed only within the last half dozen years, these materials outperform commercial silicon solar cells but require an inexpensive transparent conductor. Strontium vanadate, also a perovskite, has a compatible structure that makes this an interesting possibility for future inexpensive, high-efficiency solar cells. Engel-Herbert and Zhang have applied for a patent on their technology. The potential application to organic perovskite solar cells illustrates an interesting point: a technical development that “merely” makes an existing technology (displays) more affordable may make the difference between feasible and infeasible for a potentially even larger market (solar cells efficient, inexpensive, and robust enough to pave roads and roofs). —James Lewis, PhD
Categories: Nanotechnology News

Personalizing nanoparticles to better target tumours

Nanotechweb - February 19, 2016 - 3:39am
The size, shape and composition of therapeutic particles need to be tailored to the biological and physical properties of different tumours.

Trapped charge carriers delay light emission

Nanotechweb - February 18, 2016 - 5:06am
New work sheds more light on our understanding of nanoemitters in general and nanoplatelets in particular.

Save the Date: D-Wave Systems, HZO and Metabolon to Present at Harris & Harris Group's Annual Meeting, Tuesday June 7, 2016, the New York Genome Center

Nanotech-Now - February 17, 2016 - 7:45am
Harris & Harris Group, Inc. (NASDAQ:TINY), an investor in transformative companies enabled by disruptive science, announced today that it will be hosting a morning of presentations from three of its p...