<p>Jun Zhu and Mark Goulian of the University of Pennsylvania in the U.S. propose to use phage display technology to engineer a commensal "sentinel" bacteria that be introduced into the gut flora. Bacterial toxins would be detected by the sentinel commensal, which would bind to the toxin and express enzymes to destroy it.</p>


Jun Zhu and Mark Goulian of the University of Pennsylvania in the U.S. propose to use phage display technology to engineer a commensal "sentinel" bacteria that be introduced into the gut flora. Bacterial toxins would be detected by the sentinel commensal, which would bind to the toxin and express enzymes to destroy it.