Scientists at UC San Diego, UC Santa Barbara and MIT have developed nanometer-sized "nanoworms" that can cruise through the bloodstream without significant interference from the body's immune defense system and"”like tiny anti-cancer missiles"”home in on tumors.
Since scientists first learned to make nanowires, the tiny wires just a few millionths of a centimeter thick have taken many forms, including nanobelts, nanocoils and nanoflowers.
Researchers have developed novel atomic force microscopy probes that can quickly and simultaneously measure biomolecule or material properties including adhesion, stiffness, elasticity and viscosity, in addition to the standard AFM topography scan.
NIST, in collaboration with NASA, has published detailed guidelines for making essential measurements on samples of single-walled carbon nanotubes. The new guide constitutes the current 'best practices' for characterizing one of the most promising and heavily studied of the new generation of nanoscale materials.
As useful as nanotubes may be, the process of making them may have unintentional and potentially harmful impacts on the environment.
Anyone facing chemotherapy would welcome an advance promising to dramatically reduce their dose of these often harsh drugs. Using nanotechnology, researchers at Washington University School of Medicine in St. Louis have taken a step closer to that goal.
Two Mayo Clinic researchers who study the role nanoparticles may play in hardening of the arteries and in the formation of kidney stones, will lead a symposium on how these super-small particles may affect the body's physiology. The symposium will take place April 8 at the Experimental Biology conference in San Diego.
Valued for its antibacterial and odor-fighting properties, nanoparticle silver is becoming the star attraction in a range of products from socks to bandages to washing machines. But as silver's benefits propel it to the forefront of consumer nanomaterials, scientists are recommending a closer examination of the unforeseen environmental and health consequences of nanosilver.
One day soon a biosensing nanodevice developed by Arizona State University researcher Wayne Frasch may eliminate long lines at airport security checkpoints and revolutionize health screenings. Even more incredible than the device itself, is that it is based on the world's tiniest rotary motor: a biological engine measured on the order of molecules.
Wake Forest University's Center for Nanotechnology and Molecular Materials will host a gathering of scientists, engineers and medical researchers at a workshop that will explore both the science and the emerging business of nanomaterials used in medicine.
Researchers at Rensselaer Polytechnic Institute have created a road map that brings academia and the semiconductor industry one step closer to realizing carbon nanotube interconnects, and alleviating the current bottleneck of information flow that is limiting the potential of computer chips in everything from personal computers to portable music players.
In yet another twist on the strangeness of the nanoworld, researchers at the National Institute of Standards and Technology (NIST) and the University of Maryland-College Park have discovered that materials such as silica that are quite brittle in bulk form behave as ductile as gold at the nanoscale. Their results may affect the design of future nanomachines.
A new microscope design allows nanotechnology researchers at the National Institute of Standards and Technology (NIST) to track the motions of nanoparticles in solution as they dart around in three dimensions. The researchers hope the technology, which NIST plans to patent, will lead to a better understanding of the dynamics of nanoparticles in fluids and, ultimately, process control techniques to optimize the assembly of nanotech devices.
Physicists at the Georgia Institute of Technology have made important findings regarding gold on the nanoscale. They found that gold in this size regime can be made magnetic through oxygenation of gold nanowires. They also found that up to a certain length, oxygenated gold nanowires behave as a conducting metal, but beyond that, they become insulators.
Chemists at NIST have been the first to measure significant amounts of copper incorporated into zinc oxide nanowires during fabrication - a measurement important to optimizing optical and electrical properties of the nanowires.
Researchers at Rensselaer Polytechnic Institute have demonstrated that liquids embedded with nanoparticles show enhanced performance and stability when exposed to electric fields. The finding could lead to new types of miniature camera lenses, cell phone displays, and other microscale fluidic devices.
Georgia Tech and Emory University researchers have created a technology based on astronomy software that provides more precise images of single molecules tagged with nanoprobes. The clearer images allow researchers to collect more detailed information about a single molecule, such as how the molecule is binding in a gene sequence.
New measurements by NIST materials scientists have uncovered an intriguing wrinkle in the use of carbon nanotubes to make electrically conducting plastics. The electrical properties of the composite can be tuned from being a conductor to a non-conductor by a simple change in processing - speeding up the molten polymer flow.
Sculpting a surface composed of tightly packed nanostructures that resemble tiny nails, University of Wisconsin-Madison engineers and their colleagues from Bell Laboratories have created a material that can repel almost any liquid.
Chemists from UALR,and developed a procedure for creating highly pure carbon nanotubes needed for the development of the next generation of electronic devices. The discovery could break the scientific bottleneck keeping electronic devices from shrinking to the nanoscale .
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