1950s Video of Immune System in Action

Great video of a Neutrophil cell, a type of immune cell, relentlessly chasing down a bacterium while pushing aside red blood cells. I found it fascinating to see our immune system in action.

The video was apparently taken from a 16-mm movie made in the 1950s by the late David Rogers at Vanderbilt University.

Bacterial computers can crack mathematical problems | Science | guardian.co.uk

Bacterial computers can crack mathematical problems | Science | guardian.co.uk

Very cool research in the journal of bioengineering (http://www.jbioleng.org/content/3/1/11/abstract), using bacteria to solve the Hamiltonian Path problem (finding the shortest route to travel between several different cities). Computers have to compare each possible path to find out the shortest. Bacteria solved a simplified version involving just 3 cities, in a way simultaneously trying out every possible path.

The researchers used combinations of genes to represent the 3 cities. They engineered the bacteria to glow red or green for the different gene combinations, and then allowing the DNA to […Read More]