Gold Nanospheres Show Promise in 'Boiling' Out Cancer

...ses fewer negative reactions than other metals that come in contact with the human body, Zhang said. "Previously developed nanostructures such as nanorods were like chopsticks on the nanoscale," Zhang said. "They can go through the cell membrane but only at certain angles. Our spheres allow a smoother, m...

Nanoscopic probes can track down and attack cancer cells

... as reveal cancer cells." Scientists have developed probes that use gold nanorods or magnetic particles, but Irudayaraj's nanoprobes use both, making them ea...c particles can be traced through the use of an MRI machine, while the gold nanorods are luminescent and can be traced through microscopy, a more sensitive and ...

Nanotechnology Used For Detecting Viruses

...lify the signal. Using a method they’ve patented, they place rows of silver nanorods 10,000 times finer than the width of a human hair on the glass slides that ... several angles until they found that the signal is best amplified when the nanorods are arranged at an 86-degree angle. “The enhancement factors are extrao...

nanorods in Medical Technology

OmegaGenesis Unveils Novel Nanotechnology Platform With Broad Biomedical Applications

...established non-toxicity of the europium hydroxide nanorods in lab testing for human applications and pre-clinical studies for use of the nanorods in the treatment of wound healing, diabetic foot u...he angiogenic properties of the europium hydroxide nanorods open up a diverse set of biomedical applications a...

nanorods in Biological News

Gold nanorods shed light on new approach to fighting cancer

WEST LAFAYETTE, Ind. - Researchers have shown how tiny "nanorods" of gold can be triggered by a laser beam to blast holes in the membranes of tumor cells, setting in motion a complex biochemical mechanism that leads to a tumor cell's self-destruction. Tumor cell membranes often have an abnormal...

Purdue's gold nanorods brighten future for medical imaging

Researchers at Purdue University have taken a step toward developing a new type of ultra-sensitive medical imaging technique that works by shining a laser through the skin to detect tiny gold nanorods injected into the bloodstream. In tests with mice, the nanorods yielded images nearly 60 times b...

To fight drug addiction, UB researchers target the brain with nanoparticles

... In addition to their biocompatibility, the gold nanorods developed by the UB researchers are advantageous b... "We have demonstrated that we can use these gold nanorods to stabilize the siRNA molecules, take them across...y director for biophotonics at the institute. "The nanorods nicely address all three of these requirements." ...

Gold nanostars outshine the competition

... enhancing the signature of crystal violet, delivering a signal about 10 times stronger than the previous winner, nanorods. Both the nanostars and the nanorods outperformed the nanospheres commonly used for Raman enhancement. NIST physicist Angela Hight Walker and her team perfected the process for making ...

Biosensing nanodevice to revolutionize health screenings

...lution and placing a drop on a slide bearing reference F1-ATPases and their nanorods. Once in the instrument, red blinking signals emitted by rotating nanorods would let a computer know theres trouble, literally, in a flash. SFAz funding has also enabled Frasch to extend the method to do protein detectio...

American Chemical Society's Weekly PressPac -- Dec. 5, 2007

...splant recipients who have weakened immune systems. In the new study, Michael Cortie and colleagues attached antibodies to the parasite onto gold nanorods that are activated by laser-light. A group of Toxoplasma-infected animal cells were isolated in cell culture dishes and subsequently exposed to these ...

Tiny tubes and rods show promise as catalysts, sunscreen

...boratory have developed new ways to make or modify nanorods and nanotubes of titanium oxide, a material used i... The resulting nanocavity-filled titanium oxide nanorods were 25 percent more efficient at absorbing certai... "Our research demonstrates that titanium oxide nanorods with nanocavities can dramatically improve the abs...

Silver bullet: UGA researchers use laser, nanotechnology to rapidly detect viruses

...lify the signal. Using a method they've patented, they place rows of silver nanorods 10,000 times finer than the width of a human hair on the glass slides that ... several angles until they found that the signal is best amplified when the nanorods are arranged at an 86-degree angle. "The enhancement factors are extra...

nanorods in Biological Technology

Slimmer, stickier nanorods give boost to 3-D computer chips

Troy, N.Y. Researchers at Rensselaer Polytechnic Institute have developed a new technique for growing slimmer copper nanorods, a key step for advancing integrated 3-D chip technology. These thinner copper nanorods fuse together, or anneal, at about 300 degrees Celsius. This relatively low anne...

DFG establishes 14 new research training groups

...s and biology. The selected research topics range from the transport of interacting electrons in nonequilibrium through semiconductor quantum dots, to nanorods that swim in aqueous solutions and that are driven by shear flow, to neurons in the brain. With the description of the collective dynamics of interact...

No small measure: Origins of nanorod diameter discovered

...stion at the very heart of nanotechnology: Why are nanorods so small? Researchers at Rensselaer Polytechnic...to identify the fundamental reasons why nearly all nanorods have a diameter on the order of 100 nanometers. "Scientists have been fabricating nanorods for decades, but no one has ever answered the ques...

Solar power game-changer: 'Near perfect' absorption of sunlight, from all angles

...ters to 100 nanometers, are made up of silicon dioxide and titanium dioxide nanorods positioned at an oblique angle each layer looks and functions similar to a dense forest where sunlight is "captured" between the trees. The nanorods were attached to a silicon substrate via chemical vapor disposition, and Li...

Purifying nanorods: Big success with tiny cleanup

...scovered a novel method to produce ultra-pure gold nanorods -- tiny, wand-like nanoparticles that are being st...screens. "The content of high-aspect-ratio gold nanorods produced by today's best synthetic methods is only...f length equal to one-billionth of a meter. The nanorods studied by Zubarev and Khanal are about 25 nanomet...

'Nanosculpture' could enable new types of heat pumps and energy converters

..., N.Y. A new technique for growing single-crystal nanorods and controlling their shape using biomolecules cou...titute have discovered how to direct the growth of nanorods made up of two single crystals using a biomolecula...he first to demonstrate the synthesis of composite nanorods with branching, wherein each nanorod consists of t...

On the boil: New nano technique significantly boosts boiling efficiency

...is team found that by depositing a layer of copper nanorods on the surface of a copper vessel, the nanoscale pockets of air trapped within the forest of nanorods "feed" nanobubbles into the microscale cavities of...to cool chips, Koratkar said, so depositing copper nanorods onto the copper interconnects of chips could lead ...

'Sticky nanotubes' hold key to future technologies

...issues, which requires knowing precisely how the nanotubes adhere to cells. Yet another potential application is a "nanotweezer" that might use two nanorods to manipulate components for tiny devices and machines. Raman and Strus plotted how much force it took to peel nanotubes from surfaces, discovering...

U-M research: New plastic is strong as steel, transparent

...ists solved a problem that has confounded engineers and scientists for decades: Individual nano-size building blocks such as nanotubes, nanosheets and nanorods are ultrastrong. But larger materials made out of bonded nano-size building blocks were comparatively weak. Until now. "When you tried to build so...