ScienceDaily: Engineering and Construction News |
- Nanotubes could serve as 'universal scaffolding' for cell membrane channels
- Step toward quantum computers: Two photons strongly coupled by glass fiber
- Iron-based superconductor simulations spin out new possibilities on titan
- Looking closer: Nuclear waste viewed in new light
- Tough electronics based on bullet-proof kevlar
| Nanotubes could serve as 'universal scaffolding' for cell membrane channels Posted: 03 Nov 2014 07:23 AM PST A study suggests that single-wall carbon nanotubes could be used as universal scaffolding to help to replicate the properties of cell membrane channels, scientists report. Biological membranes define the functional architecture of living systems: they are selectively permeable, maintain the chemical identity of the cells and intracellular organelles, and regulate the exchange of material between them. |
| Step toward quantum computers: Two photons strongly coupled by glass fiber Posted: 02 Nov 2014 01:01 PM PST Usually, light waves do not interact with each other. Coupling of photons with other photons is only possible with the help of special materials and very intense light. Scientists have now created the strongest possible coupling of only two photons -- an important achievement for quantum optics. |
| Iron-based superconductor simulations spin out new possibilities on titan Posted: 31 Oct 2014 11:59 AM PDT Researchers studying iron-based superconductors are combining novel electronic structure algorithms with the high-performance computing power of the Titan supercomputer to predict spin dynamics, or the ways electrons orient and correlate their spins in a material. |
| Looking closer: Nuclear waste viewed in new light Posted: 31 Oct 2014 09:05 AM PDT Britain's nuclear reactors, stainless steel drums, contain metal-clad spent uranium embedded in concrete, and they are highly radioactive. The only way to handle them safely is from behind 2-to-3-meter-thick concrete walls and leaded glass windows using automated equipment. Yet a very small number of these drums have begun to bulge after many years in storage, raising questions about what is happening within. The only way to know for sure is to sneak a peek inside. |
| Tough electronics based on bullet-proof kevlar Posted: 31 Oct 2014 09:04 AM PDT A group of researchers is exploring novel ways to apply semiconductor industry processes to unique substrates to "weave together" multifunctional materials with distinct capabilities. They describe how they were able to "weave" high-strength, highly conductive yarns made of tungsten on Kevlar -- aka body armor material -- by using atomic layer deposition, a process commonly used for producing memory and logic devices. |
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