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Nano-microscopy reveals the collective transport of gold atoms in real-time
02-05-2007 · EurekAlert!Researchers at Delft University of Technology used a High Resolution Electron Microscope to observe in real-time the collective transportation of gold atoms in a thin layer. This research illustrates the rapid progress that is currently being made by real-time nano-microscopy. Within 5 years this research area should be able to take the step from the laboratory to realistic conditions, and this will open up a wealth of possibilities for industry and the medical world.
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Keywords: nano-microscopy, reveals, collective, transport, gold, atoms, real-time, nano, microscopy, reveal, atom, real, time
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- Nanomicroscopy reveals the collective transport of gold atoms in real-time
02-05-2007 · EurekAlert!
Researchers at Delft University of Technology used a High Resolution Electron Microscope to observe in real-time the collective transportation of gold atoms in a thin layer. This research illustrates the rapid progress that is currently being made by real-time nano-microscopy. Within five years this research area should be able to take the step from the laboratory to realistic conditions, and this will open up a wealth of possibilities for industry and the medical world.
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- Innovative movies show real-time immune-cell activity within tumors
11-20-2006 · EurekAlert!
Using advanced new microscopy techniques in concert with sophisticated transgenic technologies, scientists have for the first time created three-dimensional, time-lapse movies showing immune cells targeting cancer cells in live tumor tissues. Immune cells called T cells can be seen actively migrating though tissues, making direct contact with tumor cells, and killing them. Insights from this new view of the body's on-board defenses against cancer may open the way for improved immunotherapies to treat the disease.
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- Delft University of Technology shines light on atomic transistor
11-22-2006 · EurekAlert!
Researchers from TU Delft and FOM Foundation have successfully measured transport through a single atom in a transistor. This research offers new insights into the behaviour of so-called dopant atoms in silicon. The researchers are able to measure and manipulate a single dopant atom in a realistic semi-conducting environment. The individual behaviour of dopant atoms is a stumbling block to the further miniaturisation of electronics. The work is published in Physical Review Letters.
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- The closest look ever at native human tissue
12-05-2007 · EurekAlert!
Seeing proteins in their natural environment and interactions inside cells has been a long-standing goal. Using an advanced microscopy technique called cryo-electron tomography, researchers from the European Molecular Biology Laboratory have visualized proteins responsible for cell-cell contacts for the first time. In this week's issue of Nature they publish the first 3-D image of human skin at molecular resolution and reveal the molecular Velcro-like organization that interlinks cells.
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- Scientists reveal DNA-enzyme interaction with first ever real time footage
09-17-2007 · EurekAlert!
For the first time scientists have been able to film, in real time, the nanoscale interaction of an enzyme and a DNA strand from an attacking virus. Researchers from the University of Cambridge have used a revolutionary Scanning Atomic Force Microscope in Japan to produce amazing footage of a protective enzyme unravelling the DNA of a virus trying to infect a bacterial host.
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- First 2-D Pictures of a 'frequency comb' transform it into a brush
02-07-2007 · EurekAlert!
Physicists at NIST have taken the first ever two-dimensional pictures of a "frequency comb," providing extra information that enhances the comb's usefulness in optical atomic clocks, secure high-bandwidth communications, real-time chemical analysis, remote sensing and the ultimate in precision control of atoms and molecules.
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- How T lymphocytes attack
02-26-2007 · EurekAlert!
French CNRS researchers with a group of scientists from Institut Curie and INSERM have used two-photon microscopy to demonstrate, for the first time in vivo and real-time, how T lymphocytes infiltrate a solid tumour in order to fight it. How is a tumour destroyed by T lymphocytes? This scenario has recently been visualised and published in the journal of Experimental Medicine.
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- Engineering chimeric polypeptides to illuminate cellular redox states
01-23-2008 · EurekAlert!
An interdisciplinary research team from the University of Illinois' Institute for Genomic Biology reports the design of chimeric redox-sensitive polypeptides as the first step towards development of the FRET-based biosensors for visualizing redox potentials and oxidative stress in live cells via optical microscopy. The FRET-based biosensors are a significant advance for routinely measuring oxidative stress in real time. They promise to be broadly applicable by biomedical researchers working in diverse fields of cellular biology.
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- IBM and Imago find a crucial difficulty in semiconductor device scaling
09-06-2007 · EurekAlert!
As reported in the Sept. 7, 2007 issue of Science, IBM and Imago used atom probe tomography to observe, for the first time, distributions of individual dopant atoms at defects in semiconductor devices. The researchers found that clusters of dopant atoms form around defects after ion implantation and annealing. These clusters persist even after considerable thermal treatment, creating dopant fluctuations that may ultimately limit the scalability of semiconductor devices.
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- Physicists pin down spin of surface atoms
09-12-2007 · EurekAlert!
UC-Berkeley physicists have successfully measured the atomic spin of an isolated atom, one of the necessary steps on the road to quantum computers and spintronics devices. Using a scanning tunneling microscope with a spin-polarized tip, Michael Crommie and colleagues mapped the surface topography and the surface energy levels to determine the spin of adatoms, the first time this has been measured directly.
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