ScienceDaily: Top Technology News |
- Cooling semiconductors by laser light
- Vaccines to boost immunity where it counts, not just near shot site
- Nanmaterial detects and removes arsenic from drinking water
- Solar alchemy: Photocatalysts to clean water and recover chemicals
| Cooling semiconductors by laser light Posted: 22 Jan 2012 12:25 PM PST Researchers have combined two fields -- quantum physics and nano physics -- and this has led to the discovery of a new method for laser cooling semiconductor membranes. Semiconductors are vital components in many electronics, and the efficient cooling of components is important for future quantum computers and ultrasensitive sensors. The new cooling method works quite paradoxically by heating the material. Using lasers, researchers cooled membrane fluctuations to minus 269 degrees C. |
| Vaccines to boost immunity where it counts, not just near shot site Posted: 22 Jan 2012 12:25 PM PST Researchers have created synthetic nanoparticles that target lymph nodes and greatly boost vaccine responses. |
| Nanmaterial detects and removes arsenic from drinking water Posted: 21 Jan 2012 01:04 PM PST Scientists have developed a nanomaterial which enables simple detection and removal of arsenic from drinking water. |
| Solar alchemy: Photocatalysts to clean water and recover chemicals Posted: 18 Jan 2012 07:14 AM PST Polluted water can be easily cleaned and treated to extract valuable chemicals, e.g., used in drug manufacturing. No factories or plants are needed, the sun and a "magic" powder are enough. The nearly alchemic transformation is accomplished due to photocatalysts. |
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