Probing bacterial resistance to a class of natural antibiotics
Antimicrobial peptides are a distinctive class of potent, broad-spectrum antibiotics produced by the body's innate immune system—the first line of defense against disease-causing microbes.
Scientists reveal how penicillin deals bacteria a devastating blow – work that may lead to new antibiotics
Penicillin, the wonder drug discovered in 1928, works in ways that are still mysterious almost a century later. One of the oldest and most widely used antibiotics, it attacks enzymes that build the bacterial ...
Viruses hijack deep-sea bacteria at hydrothermal vents
More than a mile beneath the ocean's surface, as dark clouds of mineral-rich water billow from seafloor hot springs called hydrothermal vents, unseen armies of viruses and bacteria wage war.
Engineering team designs 'living materials'
Inspired by natural materials such as bone—a matrix of minerals and other substances, including living cells—MIT engineers have coaxed bacterial cells to produce biofilms that can incorporate nonliving ...
The nutritionists within: Firebugs depend on gut bacteria for vitamin supply
Microbial partners are important for the nutrition of many insects. They help detoxify and digest food, but also provide essential nutrients that insects need in order to survive. The European firebug Pyrrhocoris ...
Structure of bacterial nanowire protein hints at secrets of conduction (w/ Video)
(Phys.org) —Tiny electrical wires protrude from some bacteria and contribute to rock and dirt formation. Researchers studying the protein that makes up one such wire have determined the protein's structure. ...
Using analog computation circuits, engineers design cells that can compute logarithms, divide and take square roots
MIT engineers have transformed bacterial cells into living calculators that can compute logarithms, divide, and take square roots, using three or fewer genetic parts. Inspired by how analog electronic circuits ...
A possible alternative to antibiotics
Scientists from the University of Bern have developed a novel substance for the treatment of severe bacterial infections without antibiotics, which would prevent the development of antibiotic resistance.
Cell circuits remember their history: Engineers design new synthetic biology circuits that combine memory and logic
MIT engineers have created genetic circuits in bacterial cells that not only perform logic functions, but also remember the results, which are encoded in the cell's DNA and passed on for dozens of generations.
Learning anti-microbial physics from cicada
(Phys.org) —Inspired by the wing structure of a small fly, an NPL-led research team developed nano-patterned surfaces that resist bacterial adhesion while supporting the growth of human cells.
Viruses can have immune systems, new research shows
A study published today in the journal Nature reports that a viral predator of the cholera bacteria has stolen the functional immune system of bacteria and is using it against its bacterial host. The study provides the fi ...
Portable nanodevice provides rapid, accurate diagnosis of tuberculosis, other bacterial infections
A handheld diagnostic device that Massachusetts General Hospital (MGH) investigators first developed to diagnose cancer has been adapted to rapidly diagnose tuberculosis (TB) and other important infectious ...
Editing the genome: New method allows scientists to insert multiple genes in specific locations, delete defective genes
Researchers at MIT, the Broad Institute and Rockefeller University have developed a new technique for precisely altering the genomes of living cells by adding or deleting genes. The researchers say the technology ...
Some Earth bacteria survive and grow at extremely low pressure, may aid Mars research
(Phys.org)—University of Florida researchers have discovered for the first time that some Earth bacteria can live under the same low pressure conditions found on Mars.