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Nanotechnology News - July 2009 Archives
 | New measurements conducted on C60 molecules (carbon Buckyballs) adhered to silver substrates push the limits of surface science. ...> Full Article |
 | Scientists at the University of California, Riverside, report the first direct observation and controlled creation via simple thermal manipulation of one- and two-dimensional ripples in graphene sheets. The result has important implications for controlling thermally induced stress in graphene electronics and represents the first step towards strain-based graphene engineering. The thermal contraction of graphene had been predicted theoretically, but the UC Riverside lab is the first to demonstrate and quantify the phenomenon experimentally. ...> Full Article |
Maternal exposure to nanoparticles of titanium dioxide (TiO2) affects the expression of genes related to the central nervous system in developing mice. Researchers writing in BioMed Central's open access journal Particle and Fibre Toxicology found that mice whose mothers were injected with the nanoparticles while pregnant showed alteration in gene expression related to neurological dysfunction.
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 | New video showing the atom-by-atom growth of carbon nanotubes reveals they spin stepwise as they grow, much like a ticking clock. Published online this month by researchers at France's Université Lyon1/CNRS and Houston's Rice University, the research provides the first experimental evidence of how individual atoms are added to growing nanotubes. ...> Full Article |
By studying gold nanoparticles with highly uniform sizes and shapes, scientists now understand how they lose energy, a key step towards producing nanoscale detectors for weighing any single atom.
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Using tiny nanodiamonds, researchers at Northwestern University have demonstrated an innovative method for delivering and releasing insulin at a specific location over a period of time. The nanodiamond-insulin clusters hold promise for wound-healing applications and could be integrated into gels, ointments, bandages or suture materials.
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 | Researchers have created magnetically responsive gold nanostars that may offer a new approach to biomedical imaging. The nanostars gyrate when exposed to a rotating magnetic field, and can scatter light to produce a pulsating or "twinkling" effect. This twinkling allows them to stand out more clearly from noisy backgrounds like those found in biological tissue. ...> Full Article |
 | Scientists in India are reporting successful laboratory tests of a new and potentially safer alternative to silver-based gels applied to the skin of burn patients to treat infections. The researchers describe gel composed of silver nanoparticles -- each 1/50,000th the width of a human hair -- that appears more effective than these traditional gels. Their study is scheduled for the Aug. 3 issue of ACS' Molecular Pharmaceutics, a bimonthly journal. ...> Full Article |
Microscope shows how nanoferries invade cells
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Metals that dissolve in water successfully extracted, transferred into layer of organic solvent that floats on water
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 | Researchers at Lawrence Berkeley National Laboratory and the University of California at Berkeley grow dense arrays of single-crystal semiconductors arranged as nanoscale pillars on low-cost, aluminum foil substrates. When the nanopillars are combined with a transparent, positively charged semiconductor that serves as a window, the resulting 3-D photovoltaic promises efficient, cheap, flexible solar cells. ...> Full Article |
 | Since its discovery a few years ago, graphene has climbed to the top of the heap of new materials poised to transform the electronics and nanotechnology landscape. Now, ASU Biodesign Institute scientist N.J. Tao has made the first measurement of a fundamental property of graphene, known as quantum capacitance. This crucial variable should prove invaluable to researchers pushing the existing limits of innovation in microchips, chemical sensing instruments, biosensors, ultracapacitance devices and flexible displays. ...> Full Article |
A new review article appearing in Environmental Health Perspectives focuses on the use of nanomaterials for environmental cleanup. The authors conclude that the technology could be an effective and economically viable alternative for some current site cleanup practices, but potential risks remain poorly understood.To coincide with the article's release, the Project on Emerging Nanotechnologies has made publicly available an interactive, online map of global nanoremediation sites available.
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 | A new look at how proteins assemble and organize themselves into complex patterns ...> Full Article |
Tailored sequences of DNA lead to breakthrough in the campaign to sort and separate CNTs
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 | The new material will increase control of radiation therapy ...> Full Article |
A team of Canadian scientists and engineers, led by the University of Alberta and the National Research Council of Canada, will collaborate on a $3.39 million, three-year study to assess the potential effects of nanoparticles in specific water environments.
...> Full Article
 | Scientists at the Physikalisch-Technische Bundesanstalt have developed a metrological scanning probe microscope into a micro and nano coordinate measuring instrument. This now allows dimensional quantities with nanometer resolution also to be measured on three-dimensional objects in an extraordinarily large measurement range of 25 mm x 25 mm x 5 mm. ...> Full Article |
 | Scientist creates model to design radiation-resistant materials ...> Full Article |
A project under way at the US Department of Energy's Savannah River National Laboratory will study how special coatings that mimic structures found in nature can increase the usefulness of solar energy as a vital part of the nation's future energy strategy.
...> Full Article
 | A new statistical analysis technique that identifies and removes systematic bias, noise and equipment-based artifacts from experimental data could lead to more precise and reliable measurement of nanomaterials and nanostructures likely to have future industrial applications. ...> Full Article |
 | Research may ultimately track the uptake of drugs by the body's cells ...> Full Article |
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Ancient DNA from rare fossil reveals that polar bears evolved recently and adapted quickly
'Anaconda' meets 'Jurassic Park': Study shows ancient snakes ate dinosaur babies
Scientists locate apparent hydrothermal vents off Antarctica
Mars Express heading for closest flyby of Phobos
Artificial bee silk a big step closer to reality
Predicting the fate of stem cells
Artificial foot recycles energy for easier walking
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Juggling enhances connections in the brain
Tracking down the human 'odorprint'
Fill 'er up - with algae
Scientists discover quantum fingerprints of chaos
Researchers help identify cows that gain more while eating less
Researchers discover new way of producing electricity
Trapping sunlight with silicon nanowires
Researchers gain detailed insight into failing heart cells using new nano technique
Scientists glimpse nanobubbles on super non-stick surfaces
A new way forward for nanocomposite nanostructures
Nanotechnologists collaborate to form near-frictionless diamond material