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nanoparticles News
Ivy’s Secret Is in Its Secretions
May 1, 2008 — As anyone knows who has ever been to Wrigley Field in Chicago, ivy climbs, it covers and it spreads over almost anything in its path. The plant’s famed surface-climbing ability has made it a fixture in country gardens, on urban buildings and in the ballpark of the Chicago Cubs. But how does ivy inch its way upward? Even Charles Darwin was intrigued by the root-climbing evergreen. Researchers used an AFM to image nanoparticles deposited on a mica surface. Courtesy of Mingjun...
Laser Study Shines at CLEO
SAN JOSE, Calif., April 23, 2008 -- Detecting dangerous chemicals with lasers, exploring the brain’s circuitry with light, and photoluminescence with nanoneedles will be among the latest breakthroughs in electro-optics, lasers and the application of light waves presented at the...
Laser Study Shines at Show
SAN JOSE, Calif., April 23, 2008 -- Detecting dangerous chemicals with lasers, exploring the brain’s circuitry with light, and photoluminescence with nanoneedles will be among the latest breakthroughs in electro-optics, lasers and the application of light waves presented at the...
Nanoparticles as Beacons
STANFORD, Calif., April 1, 2008 -- Raman spectroscopy has been used to take images deep within the human body, after injecting tiny nanoparticles to serve as beacons. The method is expanding the available tools for molecular imaging, enabling illumination of tumors in living subjects...
PPG Industries Acquires NanoProducts
Apr 1, 2008 — PPG Industries Inc. of Pittsburgh has acquired the assets and intellectual property of NanoProducts Corp. Based in Longmont, Colo., the nanoparticle technology company has numerous patents and operates pilot facilities for the development and...
Biomagnetics Eyed for Tests
LONDON, March 4, 2008 -- A device that combines magnetic nanoparticles with an extremely sensitive magnetic microscope could make early detection of breast cancer more cost effective and easier to administer. The device was developed by a team from University College...
Photocurrent Altered with Nanoparticles
Mar 1, 2008 — Sprinkling nanoparticles over the active face of photodetectors and solar cells could be a relatively easy and inexpensive way to enhance the performance of these devices. But exactly what effect do these tiny particles have, and what size,...
Lensless Camera Uses X-rays
ARGONNE, Ill., Feb. 21, 2008 -- A lensless camera uses x-rays to take high-resolution images of ultrasmall structures buried inside nanoparticles, nanomaterials, and biological specimens. Scientists at Argonne National Laboratory, in collaboration with those from the...
Particles Send Drugs Remotely
CAMBRIDGE, Mass., Nov. 20, 2007 -- Remotely controlled nanoparticles that, when pulsed with an electromagnetic field, release drugs to attack tumors have been devised at the Massachusetts Institute of Technology in research that could lead to the improved diagnosis and targeted...
QD Advancements on Agenda
FORT LAUDERDALE, Fla., Nov. 8, 2007 -- The Quantum Dots 2007 conference will bring together manufacturers, materials and equipment suppliers and end users to discuss recent market developments and technology advancements critical for the adoption of quantum dots (QDs) in LED, organic LED...
QD Advancements on Agenda
FORT LAUDERDALE, Fla., Nov. 8, 2007 -- Quantum Dots 2007 will bring together manufacturers, materials and equipment suppliers and end users to discuss recent market developments and technology advancements critical for the adoption of quantum dots (QDs) in LED, organic LED (OLED, flash...
HP Refutes Printer Study
PALO ALTO, Calif., Aug. 8, 2007 -- Hewlett Packard (HP) is refuting a recent claim that its printers emit harmful levels of particles and said it stands behind the safety of its products. Researchers at Queensland University of Technology in Australia said workers could face health...
Tracking Nanoparticles the Easy Way
Aug 1, 2007 — Visualizing single nanoparticles and following them in three dimensions is useful for scientific applications ranging from examining biological cells to studying mixing in microfluidics. However, tracking nanoparticles in 3-D requires imaging...
Printer Particles Pose Risk
BRISBANE, Australia, July 31, 2007 -- Workers could face a health threat -- in some cases, on par to that of cigarette smoking -- from office laser printers that emit large amounts of tiny particles into the air. Potential effects range from respiratory irritation to effects on the...
Speedy Spectroscopy of Single Nanoparticles
Jul 1, 2007 — Nanoparticles present distinct research problems. Because of variations among production batches, investigators tend to choose to study individual particles. Doing so, however, is technically challenging, and it is difficult to generate meaningful...
Photosensitizers Use IR Source
SOCORRO, N.M., May 16, 2007 -- A new agent to treat certain cancers uses the unique light-emitting properties of specific nanoparticles to deliver tiny, yet therapeutic, dosages of antibodies and reactive oxygen to individual tumor cells or clusters of cells, without affecting...
Radoslav Adzic Receives Electrochemical Society Award
May 7, 2007 — Radoslav Adzic, a senior chemist at the US Department of Energy’s (DoE) Brookhaven National Laboratory in Upton, N.Y., has been named the recipient of the 2007 Research Award of the Electrochemical Society (ECS), Energy Technology Div. The award...
NANOPARTICLES
Mar 1, 2007 — Alfa Aesar, a Johnson Matthey company, has released an updated brochure titled “Nanoparticles and Dispersions: Exploring the Possibilities.” Downloadable from the company’s Web site, the document includes expanded offerings of pure metal and alloy...
Nanotech Workplace Safety Information Found Lacking
SANTA BARBARA, Calif., Nov. 20, 2006 -- The first comprehensive, international survey of workplace safety practices in the burgeoning nanotechnology industry finds that many nanotech companies and laboratories believe nanoparticles –– specks of matter that are smaller than living cells ––...
All-Nanoparticle Coatings Increase Clarity
Nov 1, 2006 — Nanoparticle coatings with antireflective, antifogging and self-cleaning properties have been prepared by a team of researchers from MIT in Cambridge, Mass. Using an aqueous-based layer-by-layer deposition technique, the scientists created thin...
Substrates Tuned for Surface-Enhanced Raman Scattering
Nov 1, 2006 — Researchers at the University of Victoria in British Columbia, Canada, have demonstrated that a wet chemistry technique for depositing layers of gold nanoparticles and linker molecules can optimize the Raman scattering signal from an absorbed sample...
Yale Launches Nanoscience, Quantum Engineering Center
NEW HAVEN, Conn., Oct. 27, 2006 -- Yale University today announced it has established the Yale Institute for Nanoscience and Quantum Engineering, which it said will unite its six existing research efforts in molecular electronics, quantum information processing, chemistry of soft...
UK Academies Decry Lack of Nanotech Safety Research
LONDON, Oct. 24, 2006 -- In a new report published today, the Royal Society and the Royal Academy of Engineering expressed serious concerns about the UK government's lack of progress in improving the understanding of the potential health and environmental impacts of free...
Titanium Nanoparticles Produced by Laser Ablation in Liquid Are Studied
Oct 1, 2006 — As applications of nanoscale materials continue to be developed, a fundamental understanding of how changes in the processes that create those materials affect their resulting properties is required. To that end, A. Welford Castleman Jr. and Justin...
Gold Nanoparticles Prove to be Hot Stuff
GAITHERSBURG, Md., Sept. 6, 2006 -- Gold nanoparticles are highly efficient and sensitive handles for biological molecules being manipulated and tracked by lasers, but they also can heat up fast -- by tens of degrees in just a few nanoseconds -- which could either damage the molecules...
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