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nanoparticles News
Breakthrough for Hybrid Solar Cells
FREIBURG, Germany, Feb. 19, 2010 – A method for treating the surface of nanoparticles has enabled researchers to attain an efficiency rate of 2 percent by using so-called quantum dots composed of cadmium selenide. The method was developed by Albert-Ludwigs-Universität Freiburg scientists at the Department of Microsystems Engineering (IMTEK) and the Freiburg Materials Research Center (FMF). These measurements, well above the previous efficiency ratings of 1 to 1.8 percent, were confirmed by the ‘Dye and Organic Solar Cells’ re...
Tracking Particles With Gold Rods
HOUSTON, Feb. 8, 2010 – A group of Rice University researchers, led by Stephan Link, has found a way to use nanometer-scale gold rods as orientation sensors by combining their plasmonic properties with polarization-imaging techniques. The work may make it possible to see...
Nanobubbles ‘Jackhammer’ Cancer
HOUSTON, Texas, Feb. 5, 2010 – Using lasers and nanoparticles, scientists at Rice University discovered a new technique for singling out individual diseased cells and destroying them with tiny explosions. The scientists used lasers to make ‘nanobubbles’ by zapping gold...
NanoGram Hires Corbin as CEO
MILPITAS, Calif., Jan. 27, 2010 – NanoGram Corp., a manufacturer of advanced materials and solutions for energy, optical and electronic materials, has hired Dave Corbin as chief executive officer. Since commenci...
Light Kills Germs
Urbana-Champaign, Ill. Jan. 21, 2010 - In the battle against bacteria, researchers at the University of Illinois are using visible light to destroy harmful bacteria and viruses, even in the dark. Based upon a new ca...
Isolating hot spots enhances Raman results
CAMBRIDGE, Mass. – A new technique demonstrated by a Harvard group may provide environmental researchers, chemists and forensic investigators with a new tool to detect and identify trace molecules. The research combined the two separate concepts of...
Pushing the envelope: Trends in green research and technology
Jan 4, 2010 — Raising efficiency while lowering costs is the trend in solar as well as solid-state lighting. Researchers have been working toward this end in both areas for decades, and there ar...
Whispering-gallery sensor can measure a single nanoparticle
ST. LOUIS – Nanoparticles can be found nowadays in approximately 800 products, from sunscreen to anti-graffiti paint, plastic beer bottles and home pregnancy tests, and researchers are working on ways to assess how these particles affect human health and the...
QDs Improve Medical Imaging
GAITHERSBURG, Md., Nov. 19, 2009 – Changes in a living cell that take place over a long period of time are difficult to scrutinize and require high-spatial-resolution imaging. But new research now makes it possible to analyze activities that occur over hours or even days inside...
1st Atomic-scale QD Map Made
ANN ARBOR, Mich., Sept. 29, 2009 – The first atomic-scale maps of quantum dots was created by a team of physicists at the University of Michigan, who say it is a major step toward producing “designer dots” that can be tailored for specific applications.
Donors and Acceptors: New Developments in FRET
Sep 1, 2009 — Förster resonance energy transfer, or FRET, has contributed to advances in a host of applications and the development of the technique is ongoing. In recent years, FRET has benefited from a variety of new components and methodologies. In this Web...
OLED Efficiency Improved
DAEJEON, South Korea, July 17, 2009 -- A research team at KAIST (Korea Advanced Institute of Science and Technology) has discovered surface plasmon-enhanced spontaneous emission based on an organic LED (OLED), a finding expected to improve the device's energy consumption, KAIST officials...
Nanosensors Spy Drug Uptake
LEICESTER, England, July 1, 2009 – The recent discovery of fluorescent silicon nanoparticles may ultimately help track the uptake of drugs by the body’s cells, according to researchers at the University of Leicester.
Making Nanoparticles in Cells
MUNICH, Germany, June 29, 2009 – Tailor-made nanoparticles that can be used as position lights on cell proteins were realized by scientists at the Max Planck Institute of Colloids and Interfaces. The discovery could one day lead to applications in light sources for display screens...
Brookhaven laboratory patents metal coating
Jun 1, 2009 — In Upton, N.Y., scientists at the US Department of Energy’s Brookhaven National Laboratory have been awarded US Patent No. 7,507,480 for their method of coating metal surfaces with an ultrathin film containing nanoparticles, which makes the metal...
Unlocking the secrets of bone, tooth and shell formation
EINDHOVEN, Netherlands – Researchers at Eindhoven University of Technology (TU/e) have made high-resolution images of the earliest stages of bone formation using an advanced electron microscope to make three-dimensional images of the nanoparticles that are at the heart of...
Optical Device Records in 5-D
MELBOURNE, Australia, May 22, 2009 – Optical recording technologies such as DVDs could have a storage capacity of 1.6 terabytes, or the equivalent of 2000 discs, announced researchers at Swinburne University of Technology in Melbourne, Australia. The new optical device records in 5-D...
3-D Nanofluidic Devices
GAITHERSBURG, Md., April 1, 2009 – By manufacturing integrated circuits at the nanometer level, a method was devised for creating nanofluidic devices with complex 3-D surfaces.
Early Bone Growth Imaged
EINDHOVEN, Netherlands, March 16, 2009 -- The earliest stages of bone formation have been imaged for the first time in high resolution. The work provides an improved understanding of bone, tooth and shell formation, which has applications in bone-replacement materials and nanotechnology....
Gold Nanostars Shine Bright
DURHAM, NC, Nov. 7, 2008 – Tiny gold stars, smaller than a billionth of a meter, may hold the promise for new approaches to medical diagnoses or testing for environmental contaminants. Bioengineers at Duke University have indicated that of all the shapes studied to date,...
Tumor-targeting Nanodevices
SAN DIEGO, Calif., Sept. 12, 2008 – Dubbed nano-sized cargo ships, scientists from UC San Diego, UC Santa Barbara and MIT are boasting a nanodevice that sails through the bloodstream and attacks cancerous tumors, while avoiding rapid removal by the body’s natural immune system. “The...
'Pyrex'-like Nanoparticles
LAUSANNE, Switzerland, Sept. 8, 2008 – Researchers at Ecole Polytechnique Federale de Lausanne (EPFL) have reported a new procedure that has produced "Pyrex"-like nanoparticles. Currently most nanoparticles are made of polymers or silica glass. Because of the large surface-to-volume...
Lasers Make Nanostructures
GOTHENBURG, Sweden, June 3, 2008 -- A single laser pulse can reportedly create complex, ordered nanostructure systems, a previously unobserved phenomenon. Chalmers University of Technology (Gothenburg, Sweden) researchers said they have discovered a method for controlling the...
Socks with Nanosilver Could Present Problems
Jun 1, 2008 — The saying “It all comes out in the wash” could take on a whole new meaning as nanoparticles become more common in consumer goods. Using scanning and transmission electron microscopy, Troy M. Benn and Paul K. Westerhoff of Arizona State University...
Particles Detect Cancer
PROVIDENCE, R.I., May 27, 2008 -- The smallest magnetic nanoparticles created to date can be sent on such seek-and-find missions for tumor cells and emit signals MRI scans can detect. Brown University chemist Shouheng Sun and a team of researchers have created peptide-coated iron...
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April 2024
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