Phage therapy, which exploits the ability of certain viruses to infect and replicate within bacteria, shows promise for treating antibiotic-resistant bacterial infections. But designing such therapies depends on understanding how phages work. Phages can kill the cell immediately, or become dormant and kill it later, with a high level of precision in kill time.
Researchers have pinpointed the North American birthplaces of migratory monarch butterflies that overwinter in Mexico, vital information that will help conserve the dwindling species. The researchers analyzed 'chemical fingerprints' in the wings of butterflies collected as far back as the mid-1970s to learn where monarchs migrate within North America each autumn.
Dual-purpose biofuel crops could extend production by two months, decreasing the cost of each gallon of fuel and increasing profits by as much as 30 percent.
Bioengineers are trialing how to use shrimp shells to make biodegradable shopping bags, as a ‘green’ alternative to oil-based plastic, and as a new food packaging material to extend product shelf life.