January 10th, 2012 | Category: Information processing, Papers, Synthetic Biology | Leave a comment

Bacterial cells collaborate to sense arsenic

Just a quick post to draw attention to this recent paper in Nature: A sensing array of radically coupled genetic ‘biopixels’ from Jeff Hasty’s lab (link features colonies of engineered E. coli oscillating in synchrony). Christopher Voigt has written a précis Synthetic biology: bacterial cells collaborate to sense arsenic.

January 4th, 2012 | Category: Blogs, Microbiology | Leave a comment

The online, arsenic lab. book

There was plenty of controversy generated at the end of 2010 by the suggestion that a particular Halophilic bacteria (GFA-J1) could incorporate arsenic into DNA in place of phosphorous. But perhaps the most interesting outcome was not the research itself, but the online response.