ScienceDaily: Top Technology News |
- First-ever imaging of cells growing on spherical surfaces
- New 'stamping' process to pattern biomolecules at high resolution developed
- Ultra fast optical amplifier: Silicon and erbium on one chip for the first time
- Squeeze light 'till it hurts' on a quantum scale: Researchers push the boundaries on ultra-precise measurement
- Twenty-three nuclear power plants found to be in tsunami risk areas
- Civil engineers destroy test levee in the Netherlands
- Optical waveguide connects semiconductor chips: Photonic wire bond transmits data in the terabit range
- Nano-engineering electrodes to give tiny generators a boost
| First-ever imaging of cells growing on spherical surfaces Posted: 21 Sep 2012 01:23 PM PDT The potential biomedical applications of the researchers' technique include new strategies and devices for the early detection and isolation of cancer cells, facilitating new methods of treating cancer tissues.  |
| New 'stamping' process to pattern biomolecules at high resolution developed Posted: 21 Sep 2012 06:26 AM PDT Researchers have used rubber stamps to pattern biomolecules in a new way. Instead of using molecular "inks" transferred from the stamps to substrates, the new method removes molecules already in place on the surface, by having them react with the stamp surface. In the new "subtractive" printing process, the rubber stamps selectively remove patterns from molecular monolayers with much higher pattern fidelity than with conventional soft lithography and can be used over and over again.  |
| Ultra fast optical amplifier: Silicon and erbium on one chip for the first time Posted: 21 Sep 2012 06:25 AM PDT Within optical microchips, light finds its way through channels, waveguides, made of silicon. Light from a glass fiber, for example, is led through a structure of optical channels with splitters and couplers. Silicon is the workhorse for this, but it is still passive conduction of light, with some losses as well. To be able to amplify the signal, or even to include a light source on the chip, extra steps are necessary. Other types of semiconductors, like Gallium Arsenide, are an option. But materials doped with the rare earth material erbium have good amplification properties as well.  |
| Posted: 21 Sep 2012 05:35 AM PDT Physicists has pushed the boundaries on ultra-precise measurement by harnessing quantum light waves in a new way. It is one thing to be able to measure spectacularly small distances using "squeezed" light, but it is now possible to do this even while the target is moving around.  |
| Twenty-three nuclear power plants found to be in tsunami risk areas Posted: 21 Sep 2012 05:32 AM PDT Tsunamis are synonymous with the destruction of cities, and homes and since the Japanese coast was devastated in March 2011 we now know that they cause nuclear disaster, endanger the safety of the population and pollute the environment. As such phenomena are still difficult to predict, a team of scientists has assessed "potentially dangerous" areas that are home to completed nuclear plants or those under construction.  |
| Civil engineers destroy test levee in the Netherlands Posted: 20 Sep 2012 10:52 AM PDT Civil engineers collapsed a full-scale dike this week in the Netherlands. The test dike was embedded with advanced sensors and traditional measurement instruments, and results of the study are expected to help validate powerful new technologies for monitoring the health of aging flood-control infrastructure.  |
| Posted: 20 Sep 2012 05:25 AM PDT A team of researchers has succeeded in developing a novel optical connection between semiconductor chips. "Photonic wire bonding" reaches data transmission rates in the range of several terabits per second and is suited perfectly for production on the industrial scale. In the future, this technology may be used in high-performance emitter-receiver systems for optical data transmission and, thus, contribute to reducing energy consumption of the internet.  |
| Nano-engineering electrodes to give tiny generators a boost Posted: 20 Sep 2012 05:22 AM PDT Could our waste be part of the answer to humanity's energy problems? Some researchers think so, thanks to bacteria that chow down on everything from sewage to heavy metals and give off electricity as one of their own waste products.  |
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