New methods to visualize bacterial cell-to-cell communication

Most bacteria are able to communicate with each other by secreting signaling molecules. Once the concentration of signals has reached a critical density ("the Quorum), the bacteria are able to coordinate their behavior. Only ...

CMOS technology provides new insights into how biofilms form

In a study published today in Nature Communications, a research team led by Ken Shepard, professor of electrical engineering and biomedical engineering at Columbia Engineering, and Lars Dietrich, assistant professor of biological ...

Exploring growth within a confined space

Grow a tomato inside a square box, and you'll end up with a square tomato. It's an experiment that shows clearly how confinement can influence a body's evolving shape.

Pathogen turns protein into a virulence factor in one easy step

To infect its host, the respiratory pathogen Pseudomonas aeruginosa takes an ordinary protein usually involved in making other proteins and adds three small molecules to turn it into a key for gaining access to human cells. ...

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