Tag Archives: cells

Biosensors: A sensor/probe inside a single cell

News: Nanotechnology    August 16, 2010
Can scientists put sensors inside single cells? The answer used to be, yes, but not without damaging the cell (a little or a lot). Cells, human or otherwise, are very small. Human cells vary from nerve cells at about 10 microns (that’s millionths of a meter) to 50 microns for heart cells (still very small). [...]
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There’s more to gene expression than biochemistry

News: Cell Biology    February 3, 2010
At a guess, ninety-nine percent of biologists’ attention to DNA and gene expression is based on biochemistry. That’s good, since the biochemistry is obviously important and difficult enough to analyze. However, there is something else – it’s called physics. Cells, cell components, and DNA all exist in the physical world and therefore are also affected [...]
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