ScienceDaily: Biotechnology News |
- Shaping up: Controlling a stem cell's form can determine its fate
- In immune cells, super-resolution imaging reveals natural killers' M.O.
- Outsmarting algae: Scientist finds the turn-off switch
| Shaping up: Controlling a stem cell's form can determine its fate Posted: 13 Sep 2011 02:27 PM PDT New research reinforces the idea that stem cells can be induced to develop into specific types of cells solely by controlling their shape. The results may be important to the design of materials to induce the regeneration of lost or damaged tissues in the body.  |
| In immune cells, super-resolution imaging reveals natural killers' M.O. Posted: 13 Sep 2011 02:26 PM PDT Making use of a new "super resolution" microscope that provides sharp images at extremely small scales, scientists have achieved unprecedented views of the immune system in action. The new tool, a stimulated emission depletion (STED) microscope, shows how granules from natural killer cells pass through openings in dynamic cell structures to destroy their targets: tumor cells and cells infected by viruses.  |
| Outsmarting algae: Scientist finds the turn-off switch Posted: 13 Sep 2011 07:31 AM PDT Algaecide is no crime. Consider that some strains of algae produce toxins lethal to wildlife, fish and plants. Even the less harmful varieties suck oxygen out of water, suffocating living creatures in lakes, ponds, pools and aquariums. Recent algal blooms in the Great Lakes, for instance, threaten critical ecosystems. Scientists have now deciphered the structure of an essential enzyme in algae, critical to algaecide development.  |
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