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nanoparticles News
“Liquid pistons” advance camera lenses
TROY, N.Y. – A few unassuming drops of liquid locked in a very precise game of “follow the leader” could one day be found in mobile phone cameras, medical imaging equipment, implantable drug-delivery devices – possibly even implantable eye lenses. Researchers at Rensselaer Polytechnic Institute have developed liquid pistons with oscillating droplets of ferrofluid that precisely displace a surrounding liquid. Saturated with metal nanoparticles, the ferrofluid droplets can be used to...
‘C Dots’ Head to Clinical Trial
ITHACA, N.Y., Feb. 2, 2011 — “Cornell Dots” — brightly glowing nanoparticles — may soon be used to illuminate cancer cells to aid in diagnosis and treatment. The FDA has approved the new technology for the first clinical trial in humans. It is the first...
Diagnostic Nanoparticle Tools Target Cancer
ATLANTA, Nov. 3, 2010 — Using two grants from the National Cancer Institute’s Cancer Nanotechnology Platform Partnerships (CNPP) program totaling $4.7 million, researchers are targeting head, neck and pancreatic cancer with diagnostic and therapeutic nanoparticle...
Nanoparticles and the Environment
Nov 1, 2010 — Nanoparticles released into the environment can have a wide range of biological effects. These effects can depend not only on the specific chemical makeup of the nanoparticles in question, but also in the aggregate morphology that the materials may...
Birth and Growth of Nanocrystals Observed
ARGONNE, Ill., Oct. 22, 2010 — For the first time scientists have been able to watch nanoparticles grow from the earliest stages of their formation. Nanoparticles’ performance depends on their structure, composition and size, which is why researchers aim to develop ways to...
A notch above for single nanoparticle detection
NEW YORK – Working in the field of single nanoparticle detection, researchers have demonstrated strong optical coupling between an on-chip notched microring resonator and a nanoparticle in the notch. “Recently, it was found that the electromagnetic modes...
Nanoneedle Delivers QDs to Cells
CHAMPAIGN, Ill., Oct. 4, 2010 — Getting an inside look at the center of a cell can be as easy as a needle prick, thanks to University of Illinois researchers who have developed a tiny needle to deliver a shot right to a cell’s nucleus. University of Illinois researchers...
Dynasil Awarded 7 Phase II SBIR Grants
WATERTOWN, Mass., Sept. 13, 2010 — Dynasil Corporation of America announced recently that the US Department of Energy (DOE) has approved seven of its Phase II SBIR projects for awards ranging from $750,000 to $1 million each. Totaling $6.2 million, the awards are being made to...
Imaging Technique Erases Background Noise
SEATTLE, August 9, 2010 — Spotting a single cancerous cell that has broken free from a tumor and is traveling through the bloodstream to colonize a new organ might seem like finding a needle in a haystack, but a new imaging technique from the University of Washington (UW) is...
Hot Tubbing with IR Lasers
BOULDER, Colo., Aug. 3, 2010 — Using an infrared laser light, researchers at JILA have demonstrated that they can quickly and precisely heat water in a “nano bathtub.” These tiny sample containers are used for microscopy studies of the biochemistry of single molecules...
Optically trapped nanotools push nanoscience and applications
BRISTOL, UK – Researchers from the University of Bristol have assembled tools at nanometer scales that can be manipulated with laser tweezers to probe extremely small particles, surfaces and membranes. These so-called holographically trapped nanotools can now be...
Nanoparticles Intensify QDs’ Glow
UPTON, N.Y., July 27, 2010 — By linking individual semiconductor quantum dots with gold nanoparticles, scientists at Brookhaven National Laboratory have demonstrated the ability to enhance the intensity of light emitted by individual quantum dots by up to 20 times. According to...
Microring Resonator Traps Nanoparticles
CAMBRIDGE, Mass., July 26, 2010 — Harvard engineers are using a silicon-based circular resonator, or microring, to confine microparticles stably for up to several minutes. The advance could lead to the ability to direct, deliver and store nanoparticles and biomolecules on...
Holding onto a Pinch of Light
TEL AVIV, Israel, July 16, 2010 — A new tool developed by Tel Aviv University, Holographic Optical Tweezers (HOTs) use holographic technology to manipulate up to 300 nanoparticles at a time, such as beads of glass or polymer, that are too small and delicate to be handled with...
Powerful Microscope Installed at UTSA
SAN ANTONIO, June 24, 2010 — The world’s most powerful microscope is now up and running at the University of Texas at San Antonio (UTSA) with the support of a $1.2 million gift from the Robert J. Kleberg Jr. and Helen C. Kleberg Foundation. The JEOL transmission electron...
Igniting a few good ideas with fullerenes
GAINESVILLE, Fla. – A standard TV trope is the fuse made of a strand of gunpowder slowly burning while heading toward a pile of powder kegs and bundles of dynamite. This fire-starting scenario does, in fact, work, although nobody really does it that way. However,...
The season of sun, sand . . . and nanoparticles?
Jun 7, 2010 — There is no doubt that natural, unfiltered sunlight is a primal force. It charges ions in the atmosphere, providing iridescent fireworks known as the polar lights. It warms the seas and churns the air, providing weather. It feeds plants via...
QDs Could Revolutionize Computing
QUEBEC, Canada, May 14, 2010 — Physicists at McGill University have developed a system for measuring the energy involved in adding electrons to semiconductor nanocrystals, also known as quantum dots – a technology that may revolutionize computing and other areas of science....
NanoImaging Receives $200K SBIR Grant
SAN DIEGO, April 23, 2010 — NanoImaging Services Inc. has received a Small Business Innovation Research (SBIR) grant from the National Institutes of Health through the National Center for Research Resources to develop a new method for quantitative characterization of...
Method Recovers Pricey Nanoparticles
BRISTOL, England, April 16, 2010 — Ounce for ounce nanoparticles can be more precious than gold, making a new-found method that recovers, recycles and reuses nanoparticles invaluable. Solar panels, flexible displays, and other futuristic electronics made with nanoparticles may become...
LEDs lead to change for some silver
OTTAWA – Adding a touch of silver can improve several photonic endeavors, such as surface-enhanced Raman scattering, surface-enhanced fluorescence and surface plasmon resonance spectroscopy. The metal amplifies the otherwise minute emissions that must be...
Weak Laser Ignites Nanoparticles
GAINESVILLE, Fla., April 6, 2010 — Using a low-power laser engineering researchers have found they can ignite certain nanoparticles, a development they say opens the door to a wave of new technologies in health care, computing and automotive design. University of...
Century-Old Calculations Prove True
HOUSTON, March 24, 2010 — In 1908, the German physicist Gustav Mie came up with an elegant set of equations to describe the interaction of electromagnetic waves with a spherical metal particle. The theory h...
Golden Bullet Targets Cancer
ST. LOUIS, March 15, 2010 – The mythological silver bullet has just been turned gold. A highly targeted medical treatment, known as the silver bullet, the magic bullet or the Zuberkugel, has become a focu...
Beaming through to NOVEL USES for HOLOGRAPHY
Feb 28, 2010 — Typically, green, simple three-dimensional images of objects on flat paper are not unknown to today’s kids – or to anyone who has grown up during the past few decades. We encountered them first as wonderments – optical tricks that astounded and...
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May 2024
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