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Brown University
http://www.brown.edu/
ASSOCIATED NEWS:
5/19/2011 1:26:15 PM | Bio/Medicine | 0 comments
Researchers create nanopatch for the heart
Engineers at Brown University and in India have a promising new approach to treating heart-attack victims. The researchers created a nanopatch with carbon nanofibers and a polymer.
4/6/2011 11:47:08 PM | Industry | 0 comments
Brown-URI nanotech consortium reaches out to industry
A consortium formed by Brown University and the University of Rhode Island has invited industry leaders to explore partnerships and the job-creating potential of nanotechnology, a cutting-edge branch of science that has produced materials found in products from cosmetics to computer chips.
3/22/2011 1:05:50 PM | Bio/Medicine | 0 comments
Nanomodified surfaces seal leg implants against infection
Research group reports two ways in which it modified the surface of titanium leg implants to promote skin cell growth, thereby creating a natural skin layer and sealing the gap where the device has been implanted into the body. The researchers also created a molecular chain to sprinkle skin-growing proteins on the implant to hasten skin growth.
12/19/2010 12:31:15 AM | Nanotubes | 0 comments
How do you cut a nanotube? Lots of compression
Researchers at Brown University and in Korea have described the dynamics behind cutting single-walled carbon nanotubes, cylindrical structures just 1/50,000th the width of a human hair.
12/8/2010 2:43:56 PM | Bio/Medicine | 0 comments
In the lab, engineer’s novel liquid provides a solid fix for broken bones
A bone-healing fluid that can be injected into breaks with a syringe shows such strong promise in lab testing, that it has been licensed from Brown by a Massachusetts biotech startup for further development.
11/12/2010 10:15:04 PM | Materials | 0 comments
Graphene's strength lies in its defects
The website of the Nobel Prize shows a cat resting in a graphene hammock. Although fictitious, the image captures the excitement around graphene, which, at one atom thick, is the among the thinnest and strongest materials ever produced.
6/10/2010 11:07:17 AM | Materials | 0 comments
A New Approach to Finding and Removing Defects in Graphene
In a paper in Nature Chemistry, researchers pinpointed noncarbon atoms that create defects when graphene is produced through a technique called graphene-oxide reduction. The researchers also propose how to make that technique more efficient by precisely applying hydrogen – rather than heat – to remove the impurities.
5/26/2010 4:57:29 PM | Energy | 0 comments
Brown Chemists Report Promising Advance in Fuel-Cell Technology
Chemists at Brown University have come up with a promising advance in fuel-cell technology. The team has demonstrated that a nanoparticle with a palladium core and an iron-platinum shell outperforms commercially available pure-platinum catalysts and lasts longer.
4/7/2010 4:13:25 PM | Materials | 0 comments
Brown University scientists discover new principle in material science
Materials scientists have known that a metal's strength (or weakness) is governed by dislocation interactions, a messy exchange of intersecting fault lines that move or ripple within metallic crystals. But what happens when metals are engineered at the nanoscale? Is there a way to make metals stronger and more ductile by manipulating their nanostructures?
8/27/2009 6:20:11 PM | Nanotubes | 0 comments
Researchers Pinpoint Neural Nanoblockers in Carbon Nanotubes
A team of Brown University scientists has pinpointed why carbon nanotubes tend to block a critical signaling pathway in neurons. It’s not the tubes, the team finds, but the metal catalysts used to form the tubes. The discovery means carbon nanotubes without metal catalysts may be useful in treating human neurological disorders. Results appear in Biomaterials.
8/8/2009 12:25:59 PM | Nanoparticles | 0 comments
Carbon Nanoparticles Toxic to Adult Fruit Flies But Benign to Young
Researchers at Brown University have discovered that certain types of carbon nanoparticles can be environmentally toxic to adult fruit flies, although they were found to be benign when added to food for larvae. The findings, published online in Environmental Science & Technology, may further reveal the environmental and health dangers of carbon nanoparticles.
6/26/2009 6:43:12 PM | Bio/Medicine | 0 comments
Implant Bacteria, Beware: Researchers Create Nano-sized Assassins
Infected implants now have a foe. Brown University researchers have created a nanoparticle that can penetrate a bacterial-produced film on prosthetics and kill the bacteria.
4/15/2009 5:49:44 PM | Research | 0 comments
Brown Researchers Create Novel Technique to Sequence Human Genome
Physicists at Brown University have developed a novel procedure to map a person’s genome. They report in the journal Nanotechnology the first experiment to move a DNA chain through a nanopore using magnets. The approach is promising because it allows multiple segments of a DNA strand to be read simultaneously and accurately.
3/19/2009 6:23:00 PM | Research | 0 comments
Brown Chemists Create More Efficient Palladium Fuel Cell Catalysts
Two Brown University chemists have overcome a challenge to fuel cell reactions using palladium catalysts. The scientists produced palladium nanoparticles with about 40 percent greater active surface area than commercially available palladium particles, and the nanoparticles remain intact four times longer.
3/12/2009 6:56:43 PM | Bio/Medicine | 0 comments
Twin Nanoparticle Shown Effective at Targeting, Killing Breast Cancer Cells
Brown University chemists have developed a novel way to treat a class of breast cancer cells. The team has created a twin nanoparticle that specifically targets the Her-2 tumor cell and unloads a cancer-fighting drug directly into it. The result: Greater success at eliminating the cancer while minimizing an anti-cancer drug’s side effects.
11/19/2008 11:48:48 PM | Bio/Medicine | 0 comments
How Do Bacteria Swim? Brown Physicists Explain
Brown University physicists have completed the most detailed study of the swimming patterns of a microbe, showing for the first time how its movement is affected by drag and a phenomenon called Brownian motion.
6/28/2008 2:03:14 PM | Materials | 0 comments
Brown Researchers Create Mercury-Absorbent Container Linings for Broken CFLs
Brown University researchers have discovered a nanomaterial that can absorb the mercury emitted from a broken compact fluorescent lamp (CFL).
6/4/2008 6:59:51 PM | Nanotubes | 0 comments
Brown researchers work toward ending cartilage loss
Brown University nanotechnology engineer Thomas Webster has published a first-ever study that shows how a surface of carbon nanotubes combined with electrical pulses could help regenerate cartilage naturally in the body.
6/2/2008 9:41:45 PM | Nanoparticles | 0 comments
Brown Chemists Create Cancer-Detecting Nanoparticles
A team led by a Brown University chemist has created the smallest iron oxide nanoparticles to date for cancer detection by magnetic resonance imaging (MRI). The magnetic nanoparticles operate like tiny guided missiles, seeking and attaching themselves to malignant tumor cells. Once they bind, the particles emit stronger signals that MRI scans can detect.
4/30/2008 3:37:25 PM | Events | 0 comments
Brown Opens Institute for Molecular and Nanoscale Innovation
Brown University hosts a three-day forum May 5 to 7, 2008 to highlight the opening of its Institute for Molecular and Nanoscale Innovation. The IMNI aims to design products, processes and therapies involving molecular science and nanotechnology, the scientific toolboxes of the 21st Century.
4/22/2008 1:03:36 AM | Energy | 0 comments
Brown Chemist Finds Platinum Nanocube Enhances Fuel Cell Operation
A team of chemists at Brown University for the first time has consistently created uniform platinum nanocubes, a breakthrough that could make hydrogen fuel cells more efficient and less costly.
11/23/2007 3:35:48 PM | Research | 0 comments
'Cooper pairs' can be found in insulators as well superconductors
Nearly a century ago, Dutch physicist Kamerlingh Onnes discovered that some metals transform into perfect electrical conductors when cooled to temperatures near absolute zero. Once started, their currents of electrons can flow perpetually.
9/17/2007 9:33:18 PM | Research | 0 comments
Bone-Growing Nanomaterial Could Improve Orthopaedic Implants
Bone-forming cells grow faster and produce more calcium on anodized titanium covered in carbon nanotubes compared with plain anodized titanium and the non-anodized version currently used in orthopaedic implants, new Brown University research shows.
7/15/2007 11:02:26 AM | Research | 0 comments
On a Wire or in a Fiber, a Wave is a Wave
In an experiment modeled on the classic “Young’s double slit experiment” and published in the journal Nature Nanotechnology, researchers have powerfully reinforced the understanding that surface plasmon polaritons (SPPs) propagate and diffract just like any other wave.
6/24/2007 1:12:46 AM | Electronics | 0 comments
New Nano-Method May Help Compress Computer Memory
A team of chemists at Brown University has devised a simple way to control both the size and the composition of iron-platinum nanorods and nanowires. Nanorods with uniform shape and magnetic alignment are one key to the next generation of high-density information storage.
4/10/2007 7:26:38 AM | Materials | 0 comments
Nanotextured Implant Materials: Blending in, Not Fighting Back
On both titanium and polymer materials, nanoscale surface textures yielded a more natural, accepting response, while microscale patterns typical of engineered materials spurred a rejection response.
7/14/2006 12:34:06 AM | Research | 0 comments
Brown Engineers Use DNA to Direct Nanowire Assembly and Growth
A small but growing number of engineers are using nature’s engineer – DNA – to create nanomaterials that can be used in everything from medical devices to computer circuits.
7/8/2006 1:55:51 AM | Research | 0 comments
Problem: Implant Infection. Solution: Nanotech Surfaces
For the first time, engineers have created surfaces for orthopaedic implants that reduce the presence of bacteria.
11/11/2005 3:12:11 PM | Materials | 0 comments
Brown University Scientists Testing Toxicity of Nanomaterials
Nanomaterials can be found in everything from cosmetics to concrete to car bumpers. But are these atomic-scale tubes, fibers, spheres, crystals and films safe? A multidisciplinary team of scientists at Brown University is testing nanomaterial toxicity with funding from the National Science Foundation.

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