NanomedicineBookSite Nanotechnology pushes battery life to eternity (PhysOrg.com) -- A simple tap from your finger may be enough to charge your portable device thanks to a discovery made at RMIT University and Australian National University. In a crucial step towards the development of self-powering portable electronics, researchers at RMIT University in Melbourne have for the first time characterised the ability of piezoelectric thin films to turn mechanical pressure into electricity. The pioneering result is published in the 21 June Issue of the leading materials science journal, Advanced Functional Materials. Lead co-author Dr Madhu Bhaskaran said the research combined the potential of piezoelectrics - materials capable of converting pressure into electrical energy - and the cornerstone of microchip manufacturing, thin film technology. "The concept of energy harvesting using piezoelectric nanomaterials has been demonstrated but the realisation of these structures can be complex and they are poorly suited to mass fabrication.
The Nanotube Site Translation to Romanian Maybe the most significant spin-off product of fullerene research, leading to the discovery of the C60 "buckyball" by the 1996 Nobel Prize laureates Robert F. Curl, Harold W. Kroto, and Richard E. Smalley, are nanotubes based on carbon or other elements. These systems consist of graphitic layers seamlessly wrapped to cylinders. The primary purpose of The Nanotube Site is to facilitate the exchange of ideas among researchers by concentrating links to sites dedicated to nanotubes. The Nanotube Site is maintained regularly by David Tomanek, work and travel schedule permitting. TubeASP: Web-Accessible carbon nanotube generation applet by Roberto Veiga TubeGen: Web-Accessible Nanotube Structure Generator by the Doren Research Group, University of Delaware CoNTub: Java-based code to generate nanotube junction geometries by the GMDM group at the University of Granada, Spain Fullerene Isomers
Penn Physicists Observe “Campfire Effect” in Blinking Nanorod Sem... PHILADELPHIA — When semiconductor nanorods are exposed to light, they blink in a seemingly random pattern. By clustering nanorods together, physicists at the University of Pennsylvania have shown that their combined “on” time is increased dramatically providing new insight into this mysterious blinking behavior. The research was conducted by associate professor Marija Drndic’s group, including graduate student Siying Wang and postdoctorial fellows Claudia Querner and Tali Dadosh, all of the Department of Physics and Astronomy in Penn’s School of Arts and Sciences. They collaborated with Catherine Crouch of Swarthmore College and Dmitry Novikov of New York University’s School of Medicine. Their research was published in the journal Nature Communications. When provided with energy, whether in the form of light, electricity or certain chemicals, many semiconductors emit light. A set of gold gridlines allowed the researchers to label and locate individual nanorod clusters.
Purdue physicists hone rules for nanotech game Posted on: Tuesday August 12, 2003. Nanotechnologists could have a firmer handle on the forces at play in their microscopic world thanks to recent physics research at Purdue University. The latest in a series of experiments aimed at revealing fundamental knowledge of the universe has yielded precise measurement of the so-called Casimir force – a force that could make tiny machines behave erratically, causing a thorn in the side of nanotechnology manufacturers. A team, including Purdue physicist Ephraim Fischbach, has answered science's questions about the Casimir force's effects, which could help manufacturers work around the problem. "The Casimir force is not a new discovery, but its effects on machines are essentially negligible until you start building at the nanoscale," said Fischbach, a professor in Purdue's School of Science. The Casimir force has to do with the minute pressure that real and virtual photons of light exert when they bump against an object.
Nanotech Institute News &Events Nanotechnology News Foresight is a premiere source of news relating to nanotechnology policy, applications and research. Here, you can read daily headlines from Nanodot, our blog, and our marketing partners, Nanovip.com and Nanotechnology News. the Foresight Institute AZoNano.com - Nanotechnology News Feed Foresight News News about Foresight Institute, about nanotechnology, and about how nanotechnology is covered in the media Events, Conferences, Lectures The Events page lists Foresight Conferences and other special Foresight Institute events, lectures given by Foresight Institute speakers, events sponsored by Foresight's media partners, and other conferences and events focusing on nanotechnology. Press Center The Press Center: frequently requested items and a library of Foresight Institute press releases
Nanotechnology Now - News Story: "Top 10 Reasons for Using Nanotech in... Home > News > Top 10 Reasons for Using Nanotech in Food February 20th, 2009 Top 10 Reasons for Using Nanotech in Food Abstract: Nanotechnology is in your food. Not all food. But many people watching these innovations are shaking their heads with distrust. "Companies are engaged in nanoscale research; however, they do not publicly declare so partly because of uncertainty in the safety assessment and regulatory climate," said Betty Bugusu, research scientist at the Institute of Food Technologists in Washington, D.C. Think of the arguments surrounding genetically modified crops this past decade and you'll have some idea of the controversy over nanotechnology being used in food. Nonetheless, nanotechnology could offer benefits in food safety, storage, packaging and nutrition. Hongda Chen of the USDA's Cooperative State Research, Education, and Extension Service in Washington, D.C., sees additional benefits in nutrition. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. Source:dsc.discovery.com Bookmark:
Limited Transparency In Federal Nanotech Research May Hamper Development... Dr. Andrew Maynard holds up a jar of nano titanium dioxide while testifying a House Science Committee hearing Washington, DC — Without clear leadership and more transparency in federal risk research investment, the emergence of safe nanotechnologies will be a happy accident, rather than a foregone conclusion, says Dr. Andrew Maynard. This sentiment was voiced today by Dr. Maynard in testimony at the House Science & Technology Committee’s hearing on the National Nanotechnology Initiative Amendments Act of 2008. “Activities to date within the federal nanotechnology initiative have been less than transparent, to the detriment of an effective strategy for nanotechnology development and use,” Dr. “Research projects with the primary aim of understanding and managing the risks of nanotechnology accounted for only $13 million in funding for 2006,” according to Dr. In his testimony Dr. On top of discussing issues pertaining to the federal investment in nanotechnology research, Dr.
News & Events - Nanotec... November 12, 2009 Novel nanomaterials developed at Rensselaer Polytechnic Institute are scheduled to blast off into orbit on November 16 aboard Space Shuttle Atlantis. The project, funded by the U.S. Air Force Multi University Research Initiative (MURI), seeks to test the performance of the new nanocomposites in orbit. Rensselaer professors Linda Schadler, of the Department of Materials Science and Engineering, and Thierry Blanchet, of the Department of Mechanical, Aerospace, and Nuclear Engineering, worked with a team of researchers from the University of Florida to develop two different types of experimental nanomaterials. The first new material is a wear-resistant, low-friction nanocomposite, created by mixing nanoscale alumina particles with polytetrafluoroethylene (PTFE), which is known commercially as Teflon. “We’re very excited to have this experiment installed in the ISS, and to see how the new material performs in space,” Schadler said.
Nanotech Electrical Motor Is Made From A Single Molecule Researchers at Tufts University have put together a “molecular motor” that is only about a nanometer across. It’s not the first single-molecule motor ever made, but this one, unlike others, can be activated singly by the minute tip of a scanning electron microscope. They’re working with Guinness to get certified as the smallest motor in the world. This incredibly small machine — and although it really is just a molecule (and not a big one at that), it is a machine — was created by simply stacking a butyl methyl sulphide molecule onto a substrate of copper. Add a little bit of charge and it starts to spin. What can they do with this? To anyone who has studied microbiology, this might seem rather underwhelming.
Accelerating Future » 10 Interesting Futuristic Materials 1. Aerogel Aerogel holds 15 entries in the Guinness Book of Records, including "best insulator", and "lowest-density solid". Sometimes called "frozen smoke", aerogel is made by the supercritical drying of liquid gels of alumina, chromia, tin oxide, or carbon. It's 99.8% empty space, which makes it look semi-transparent. 2. Carbon nanotubes are chains of carbon held together by the strongest bond in all chemistry, the sacred sp2 bond, even stronger than the sp3 bonds that hold together diamond. 3. "Metamaterial" refers to any material that gains its properties from its microscopic structure rather than bulk composition. 4. We're starting to lay down thick layers of diamond in CVD machines, hinting towards a future of bulk diamond machinery. 5. Diamonds may be strong, but aggregated diamond nanorods (ADNRs) are stronger. 6. Amorphous metals, also called metallic glasses, consist of metal with a disordered atomic structure. 7. 8. 9. 10.
SQUIGGLE motors - miniature piezoelectric micro motors Patented piezoelectric motor with small size, high force and speed The heart of New Scale's M3 smart module platform is the SQUIGGLE motor, a revolutionary piezo micro motor with incredibly small size and big performance. This patented ultrasonic motor creates high force (or torque) and high speed with only a few parts – compare to complex electromagnetic gearhead motors with hundreds of parts. SQUIGGLE micro motors allow product designers to add motion features into products where they could not have been imagined before. This simple, robust piezo motor is scalable to much smaller sizes than electromagnetic motors, without significant loss of power efficiency, and operates on 3.3 V. Features Precise: nanometer resolutionFast: variable speed to 10 mm/sec (linear) or 12,000 rpm (rotary)Strong: models with up to 5 Newton force (linear) or more than 3 mN-m (rotary)Tiny: as small as 1.8 x 1.8 x 6 mmQuiet and smoothNon-magnetic, vacuum and cryogenic options possible Operating principle