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Bio-Chip & Nanotechnology
Photostable Nanotechnology Benefits Bioimaging and Biosensing PDF Print E-mail
Wednesday, 17 June 2009 08:25

http://images.iop.org/objects/nano/news/thumb/8/6/13/image1.jpgFor most biomedical imaging and biosensing applications, we need some kind of fluorescent tag that allows us to detect and follow cells and molecules. Currently, most fluorescent tags are delicate fluorescent dyes or proteins, which bleach (lose their fluorescence) easily when excited. In such cases, researchers have to depend on frustratingly brief snapshots to infer a biological process.

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NYU Researchers Create Method to Precisely Glue Particles Together on the Micro- and Nano-scale PDF Print E-mail
Monday, 15 June 2009 10:29

http://physics.as.nyu.edu/props/IO/2774/42/grier.david.jpgResearchers at New York University have created a method to precisely bind nano- and micrometer-sized particles together into larger-scale structures with useful materials properties. Their work, which appears in the latest issue of the journal Nature Materials, overcomes the problem of uncontrollable sticking, which had been a barrier to the successful creation of stable microscopic and macroscopic structures with a sophisticated architecture.

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Nanoslits Measure Refractive Indices PDF Print E-mail
Friday, 12 June 2009 10:00

http://images.iop.org/objects/nano/news/thumb/8/6/10/090610.jpgResearchers at Northwestern University in Illinois have discovered that 2D arrays of nanoslits can behave as quasi-1D arrays under certain conditions. The result could be important for determining the refractive index of certain materials and allow improved sensitivity for monitoring protein-ligand binding.

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Evidence Of Macroscopic Quantum Tunneling Detected In Nanowires PDF Print E-mail
Wednesday, 10 June 2009 10:39

http://news.illinois.edu/WebsandThumbs/Bezryadin,%20Alexey0605/sahu_mitrabhanu_x.jpgA team of researchers at the University of Illinois has demonstrated that, counter to classical Newtonian mechanics, an entire collection of superconducting electrons in an ultrathin superconducting wire is able to “tunnel” as a pack from a state with a higher electrical current to one with a notably lower current, providing more evidence of the phenomenon of macroscopic quantum tunneling.

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Create Freestanding Nanoparticle Films without Filters PDF Print E-mail
Wednesday, 10 June 2009 10:15

http://sitemason.vanderbilt.edu/files/gyp5tK/20090604DD018.JPG/main.jpgNanoparticle films are no longer a delicate matter: Vanderbilt physicists have found a way to make them strong enough so they don’t disintegrate at the slightest touch.

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A breakthrough Toward Industrial Production of Fluorescent Nanodiamonds PDF Print E-mail
Monday, 08 June 2009 10:24

The laboratory « Structure - Activité of Normal & Pathologic Biomolecules– SANPB », Inserm / UEVE U829 (Genopole Evry, France) in collaboration with the Material Centre of Mines-ParisTech (Evry, France), the NRG - UMR 5060 CNRS / UTBM (Technology University of Belfort-Montbéliard) and the Physic Institute of Stuttgart University (Germany) discovered a novel route to fabricate fluorescent nanoparticles from diamond microcrystals. Results are published in Nanotechnology June10 2009 issue.

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Researchers Test Nanoparticle to Treat Cardiovascular Disease in Mice PDF Print E-mail
Friday, 05 June 2009 09:38

http://www.eurekalert.org/multimedia/pub/rel/14436_rel.jpgScientists and engineers at UC Santa Barbara and other researchers have developed a nanoparticle that can attack plaque –– a major cause of cardiovascular disease. The new development is described in a recent issue of the Proceedings of the National Academy of Sciences.

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Rigiflex Mould Turns Out Metallic Nanopatterns PDF Print E-mail
Friday, 05 June 2009 08:54

http://images.iop.org/objects/nano/news/thumb/8/6/2/image1.jpgMetallic nanopatterns for thin-film transistors (TFTs), photonic crystals and optical devices such as wire grid polarizers can be easily fabricated by reversal rigiflex printing.

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TEM Watches Nanocrystals Grow PDF Print E-mail
Friday, 05 June 2009 08:36

http://images.iop.org/objects/nano/news/8/6/6/090606-1.jpgResearchers in the US have used transmission electron microscopy to track the growth of platinum nanocrystals with sub-nanometre resolution and have found that the crystals can grow by randomly coalescing with each other. This mechanism, which is not considered in most classic models of crystal growth, helps to speed up the rate at which nanocrystals grow and might be important for creating crystals with special physical properties for use as catalysts.

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Proteins Pass Nano-templating Test PDF Print E-mail
Wednesday, 03 June 2009 09:58

http://images.iop.org/objects/nano/news/8/6/1/image1.jpgSelf-assembly is an attractive bottom-up method for inexpensive and parallel synthesis of nanostructures. It does not require expensive equipment and extreme conditions. However, due to the nature of building blocks, self-assembled structures are usually periodic. The development of methods for the programmable and precise assembly of materials into complex patterns at the nanometre scale is one of the major goals of nanotechnology.

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A*STAR Scientists Invent The World’s Only Controllable Molecule-Gear Of Minuscule Size Of 1.2nm PDF Print E-mail
Tuesday, 16 June 2009 10:22

Scientists from A*STAR’s Institute of Materials Research and Engineering (IMRE), led by Professor Christian Joachim,  have scored a breakthrough in nanotechnolohttp://www.cemes.fr/r1_labo/images/joachim.jpggy by becoming the first in the world to invent a molecular gear of the size of 1.2nm whose rotation can be deliberately controlled. This achievement marks a radical shift in the scientific progress of molecular machines and is published on 15 June 2009 in Nature Materials, one of the most prestigious journals in materials science.  

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Probe-based Nanofabrication under Control PDF Print E-mail
Friday, 12 June 2009 10:11

http://images.iop.org/objects/nano/news/8/6/9/image1.jpgEngineers in the US are working to substantially increase the fabrication speed of probe-based nanopatterning schemes by using advanced control techniques to compensate for adverse vibrational dynamics, nonlinear hysteresis and cross-axis coupling effects.

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Protein Gel Layer for Biochips Now Produced Industrially PDF Print E-mail
Wednesday, 10 June 2009 10:56

http://www.nanowerk.com/news/id10956.jpgBiochips carrying thousands of DNA fragments are widely used for examining genetic material. Experts would also like to have biochips on which proteins are anchored. This requires a gel layer which can now be produced industrially.

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Thinnest Superconducting Metal Ever Created PDF Print E-mail
Wednesday, 10 June 2009 10:28

http://www.utexas.edu/news/wp-content/uploads/lead_film_inset.jpgA superconducting sheet of lead only two atoms thick, the thinnest superconducting metal layer ever created, has been developed by physicists at The University of Texas at Austin.

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Foxconn Patents Nanoparticle LED Doping PDF Print E-mail
Wednesday, 10 June 2009 10:03

The behemoth Taiwanese company seeks to protect its method for smoothing both InGaN and AlGaAs active layers.

Electronics manufacturer Foxconn is challenging established LED chip companies and their methods with two US patent applications that exploit nanoparticle dopants to improve performance.

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Manipulating Light on a Chip for Quantum Technologies PDF Print E-mail
Monday, 08 June 2009 10:08
http://www.bristol.ac.uk/news/2009/6394.html/2009-06-05.1681948413/imageA team of physicists and engineers at Bristol University has demonstrated exquisite control of single particles of light — photons — on a silicon chip to make a major advance towards long-sought-after quantum technologies, including super-powerful quantum computers and ultra-precise measurements.
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New, Light-Driven Nanomotor is Simpler, More Promising, Scientists Say PDF Print E-mail
Friday, 05 June 2009 09:10

GAINESVILLE, Fla. — Sunflowers track the sun as it moves from east to west. But people usually have to convert sunlight into electricity or heat to put its power to use.http://web.chem.ufl.edu/people/faculty/photos/tan.jpg

Now, a team of University of Florida chemists is the latest to report a new mechanism to transform light straight into motion – albeit at a very, very, very tiny scale.

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Nanotube-Metal Contacts: a Sensitive Approach PDF Print E-mail
Friday, 05 June 2009 08:44

http://images.iop.org/objects/nano/news/8/6/5/image1.jpgSemiconducting carbon nanotubes have been suggested as a possible replacement for silicon as a channel material in logic transistors due to their high mobility, good thermal conductivity, compatibility with high-k dielectrics and small dimensions. Carbon nanotube transistors behave as Schottky barrier devices and the contact properties between the nanotube and metal surfaces are of great importance.

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Relaxing Nanoparticles Could Image Artery Plaques PDF Print E-mail
Wednesday, 03 June 2009 10:17

http://images.iop.org/objects/nano/news/8/5/15/090515.jpgA new magnetic imaging technique that could be used to safely detect and characterize artery plaques has been invented by researchers at the Texas Center for Superconductivity at the University of Houston. The method relies on measuring how quickly magnetic nanoparticles relax in a finite magnetic field after being aligned by short magnetic pulses

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Biomimetic-engineering Design Can Replace Spaghetti Tangle Of Nanotubes In Novel Material PDF Print E-mail
Tuesday, 02 June 2009 13:00
Nanoelectromechanical systems (NEMS) devices have the potential to revolutionize the world of sensors: motion, chemical, temperature, etc. But taking electromechanical devices from the micro scale down to the nano requires finding a means to dissipate the heat output of this tiny gadgetry.
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