ScienceDaily: Top Technology News |
- Bacteria use Batman-like grappling hooks to 'slingshot' on surfaces, study shows
- Hydrogen may be key to growth of high-quality graphene
- Cadmium selenide quantum dots degrade in soil, releasing their toxic guts, study finds
- NASA's Dawn spacecraft returns close-up image of giant asteroid Vesta
- Solar panels keep buildings cool
- 'Smart' sunglasses block blinding glare
- Click chemistry with copper: A biocompatible version
| Bacteria use Batman-like grappling hooks to 'slingshot' on surfaces, study shows Posted: 18 Jul 2011 02:14 PM PDT Researchers have diagnosed a complex sequence of movements that make-up the "twitching" motility in bacteria with type IV pili (TFP). TFP act like Batman's grappling hooks that extend and bind to a surface to retract and pull the cell along. Using a high-speed camera and a novel two-point tracking algorithm, researchers also noticed the bacteria had the additional capability to "slingshot" on surfaces.  |
| Hydrogen may be key to growth of high-quality graphene Posted: 18 Jul 2011 02:14 PM PDT A new approach to growing graphene greatly reduces problems that have plagued researchers in the past and clears a path to the crystalline form of graphite's use in sophisticated electronic devices of tomorrow.  |
| Cadmium selenide quantum dots degrade in soil, releasing their toxic guts, study finds Posted: 18 Jul 2011 01:13 PM PDT Quantum dots made from cadmium and selenium degrade in soil, unleashing toxic cadmium and selenium ions into their surroundings, a new study has found.  |
| NASA's Dawn spacecraft returns close-up image of giant asteroid Vesta Posted: 18 Jul 2011 12:17 PM PDT NASA's Dawn spacecraft has returned the first close-up image after beginning its orbit around the giant asteroid Vesta. On July 15, Dawn became the first probe to enter orbit around an object in the main asteroid belt between Mars and Jupiter.  |
| Solar panels keep buildings cool Posted: 18 Jul 2011 12:15 PM PDT Those solar panels on top of your roof aren't just providing clean power; they are cooling your house, or your workplace, too, according to a team of environmental engineering researchers.  |
| 'Smart' sunglasses block blinding glare Posted: 18 Jul 2011 11:28 AM PDT The days of being blinded by glare from the sun, despite the $300 sunglasses straddling your face, may soon be over.  |
| Click chemistry with copper: A biocompatible version Posted: 18 Jul 2011 10:21 AM PDT Researchers have found a way to make copper-catalyzed click chemistry biocompatible. By adding a ligand that minimizes the toxicity of copper but still allows it to catalyze the click chemistry reaction, the researchers can safely use their reaction in living cells.  |
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