Currently, when scientists want to know if bacteria are present in
water, they have two main choices. They can take a sample to the lab,
where they'll try growing the suspected bacteria in it, and then count
the number of resulting colonies to determine the concentration. Or,
they can analyze it using expensive lab-based gas chromatography or mass
spectrometry equipment. Now, however, researchers from Seoul National
University have developed a "bioelectronic nose" that could be used on
location, and that is reportedly more sensitive than existing
Do you remember Pig-Pen, the Peanuts comic character who's always surrounded by a cloud of his own filth? Well, it turns out that we're actually all a little like him. Scientists have discovered that not only does everyone emit an invisible "microbial cloud," but that individuals can be recognized by the bacteria that make up their particular cloud.
We've previously heard about wound dressings that kill bacteria,
but now researchers at Australia's Swinburne University of Technology are
taking a different approach. They're creating a dressing material that
attracts bacteria out from within the wound, so that the material and
the microbes can then just be pulled off and discarded.
Consumers may soon be able to go for longer between milk-buying trips.
That's because Brazilian company Agrindus hopes to start marketing
plastic milk bottles that use embedded silver nanoparticles to kill
bacteria. Grade A pasteurized fresh whole milk packaged in those bottles can reportedly last for up to 15 days, as opposed to the usual seven.
A foldable, inexpensive paper battery that can generate a small amount of electricity brings a new sense of power to origami, the Japanese art of paper folding. An engineer at Binghamton University in New York has developed a battery that creates power through the process of microbial respiration in a drop of dirty water on paper.
A team of researchers from the University at Buffalo School of Engineering has turned to colonies of E. coli bacteria to produce new forms of antibiotics. The study made use of a harmless form of E. coli, and several of the resulting drugs may be equipped to tackle harmful, drug-resistant bacteria.
Back in 2013, we heard that nanoengineers at the University of California, San Diago (UC San Diego) had successfully used nanosponges to soak up toxins
in the bloodstream. Fast-forward two years and the team is back with
more nanospongey goodness, now using hydrogel to keep the tiny fellas in
place, allowing them to tackle infections such as MRSA, without the need for antibiotics.