ScienceDaily: Biotechnology News |
- Research team achieves first 2-color STED microscopy of living cells
- Cellular laser microsurgery illuminates research in vertebrate biology
- Kinder, gentler cell capture method could aid medical research
- Virus uses 'Swiss Army knife' protein to cause infection
| Research team achieves first 2-color STED microscopy of living cells Posted: 17 Aug 2011 07:19 AM PDT Current applications of STED microscopy have been limited to single color imaging of living cells and multicolor imaging in "fixed" or preserved cells. However, to study active processes, such as protein interactions, a two-color STED imaging technique is needed in living cells. This has now been achieved for the first time.  |
| Cellular laser microsurgery illuminates research in vertebrate biology Posted: 17 Aug 2011 07:19 AM PDT Using an ultrafast femtosecond laser, researchers were able to label, draw patterns on, and remove individual melanocytes cells from a species of frog tadpole (Xenopus) without damaging surrounding cells and tissues. Melanocytes are the cells responsible for skin pigment; they also are descendants of a specific type of stem cell that has regenerative potential and other characteristics similar to some cancer cells.  |
| Kinder, gentler cell capture method could aid medical research Posted: 17 Aug 2011 07:19 AM PDT A research team has come up with a potential solution to a two-pronged problem in medical research: How to capture cells on a particular spot on a surface using electric fields and keep them alive long enough to run experiments on them.  |
| Virus uses 'Swiss Army knife' protein to cause infection Posted: 17 Aug 2011 06:49 AM PDT In an advance in understanding Mother Nature's copy machines, motors, assembly lines and other biological nano-machines, scientists are describing how a multipurpose protein on the tail of a virus bores into bacteria like a drill bit, clears the shavings out of the hole and enlarges the hole. They report on the "Swiss Army knife" protein, which enables the virus to pump its genetic material into and thus infect bacteria.  |
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