1. The scanning probe microscope (SPM) can manipulate single atoms, move them in a controlled manner and help create novel nano-sized structures with very high precision. It can also map the terrain of living cells and allows biologists to obtain high-resolution images of a cell’s surface. The uniqueness and versatility of the tool is underscored in a new book by local researchers from A*STAR’s Institute of Materials Research and Engineering (IMRE). The book covers the practical uses of SPM and Singapore’s significant contribution in this area.
2. The SPM creates extremely accurate high-resolution images of a specimen’s surface by moving an extremely fine metal probe - which is a thousand times less than a hair’s breadth - across the surface, one parallel line at a time. SPM can be used to image materials with atomic-scale resolution and can be used to study living cells in their original liquid-filled environments. SPM has also allowed A*STAR IMRE scientists to create the world’s first controllable molecular gear and secure a place in a €10million European Union (EU) project to build a molecule-sized processor chip.
3. IMRE has more than 10 SPM systems which are used across multiple disciplines, such as physics, chemistry, and biology. Data gained from SPM can be used to benefit the semiconductor industry, advance molecular electronics, control friction between two surfaces at the molecular level and help in further scaling down the size of electronics.
4. “I believe it is a good showcase of Singapore’s concerted effort in translating science into technology”, said Dr Johnson Goh, a Senior Research Engineer with IMRE and one of the editors of the book. “This book covers the latest SPM research in Singapore, with many of the works looking beyond fundamental science to applications in nanoelectronics, biology and scalable nanolithography.” IMRE also conducts annual symposiums on SPM, which involve both academic and industry partners to further promote the industry-relevant advantages of the tool.
5. The book entitled, “Scanning Probe Microscopy”, will be published by World Scientific Publishing and will be internationally available after its launch on 15 December 2010 in conjunction with the 3rd Singapore Scanning Probe Microscopy Symposium (SingSPM 2010).Encl.
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Tiny pores at a cell's entryway act as miniature bouncers, letting in some electrically charged atoms--ions--but blocking others. Operating as exquisitely sensitive filters, these "ion channels" play a critical role in biological functions such as muscle contraction and the firing of brain cells.
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The miniaturization of the current technology of storage media is hindered by fundamental limits of quantum mechanics. A new approach consists in using so-called spin-crossover molecules as the smallest possible storage unit. Similar to normal hard drives, these special molecules can save information via their magnetic state. A research team from Kiel University has now managed to successfully place a new class of spin-crossover molecules onto a surface and to improve the molecule’s storage capacity. The storage density of conventional hard drives could therefore theoretically be increased by more than one hundred fold. The study has been published in the scientific journal Nano Letters.
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With innovative experiments, researchers at the Helmholtz-Zentrums Geesthacht and the Technical University Hamburg unravel why tiny metallic structures are extremely strong
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Scientists at the Institute of Science and Technology Austria (IST Austria) have managed to control the behavior of individual bacteria by connecting them to a...
Physicists in the Laboratory for Attosecond Physics (run jointly by LMU Munich and the Max Planck Institute for Quantum Optics) have developed an attosecond electron microscope that allows them to visualize the dispersion of light in time and space, and observe the motions of electrons in atoms.
The most basic of all physical interactions in nature is that between light and matter. This interaction takes place in attosecond times (i.e. billionths of a...
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