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Bacteria

Antibacterial fabric developed at RMIT kills E. coli (pictured) and other infectious bacte...

With a well established ability to kill off bacteria, silver has come to play a significant role in the development of antimicrobial materials. Indeed, we've seen it used in keyboards, built into water filtration systems and deployed in washing machines as a means of fending off germs. The latest effort to harness the bacteria-fighting qualities of silver comes from researchers at Australia's RMIT University working with scientists from the CSIRO, who have developed an antibacterial fabric capable of killing off E. coli and other infectious bacteria within 10 minutes of contact.  Read More

'Test sausages' used in the development of the antimicrobial film

In recent years, we've heard about bacteria-killing food packaging materials that incorporate sorbic acid, silver, and montmorillonite clay. One of the latest such developments along those lines is a film that protects meat from spoilage using essential oils or nanoparticles. Additionally, because the film is edible, it could even be incorporated right into meat products.  Read More

Georgia Tech researchers Pamela Peralta-Yahya and Stephen Sarria examine the production of...

Researchers at the Georgia Institute of Technology and the US Department of Energy’s Joint BioEnergy Institute have engineered a bacterium that could yield a new source of high-energy hydrocarbon fuel for rocketry and other aerospace uses. High-energy, specific-use hydrocarbon fuels such as JP-10 can be extracted from oil, along with more commonly used petroleum fuels, but supplies are limited and prices are high – approaching US$7 per liter. That’s where the new bacterium, engineered by Georgia Tech scientists Stephen Sarria and Pamela Peralta-Yahya, could come in.  Read More

An MIT rendering of a bacterial cell, trailing fibers containing gold nanoparticles and qu...

Scientists at MIT are developing hybrid materials that are a cross between living bacterial cells and non-living components such as gold nanoparticles or quantum dots. The resulting "living materials" are able to respond to their environment like regular living cells, while also doing things like conducting electricity or emitting light.  Read More

Samples of the coating, which contains dyes that make bacteria die

Hospital-acquired infections are a major health threat, and have prompted the development of preventative measures incorporating things like blue light and selenium nanoparticles. One of the latest such developments is a light-activated antimicrobial surface coating made from silicone, dye and gold. For some reason, it also works in the absence of light.  Read More

Researchers have finally discovered the key to dark chocolate's health benefits (Photo: Sh...

It has long been known that eating chocolate, particularly dark chocolate, has numerous health benefits. Although various studies have backed this up, the exact reason as to why this is so has remained a mystery. Now researchers from Louisiana State University have provided the answer – gut microbes.  Read More

The gel-tags use nanotechnology to show when a product has gone off

We're all familiar with the sell-by dates stamped on groceries. They're supposed to protect us, but in practice, they can be a bit of a coin toss. Now a research team led by Chao Zhang of Peking University in Beijing, China has come up with a color-coded smart tag that uses nanotechnology to tell when the food or drugs in a package are in danger of spoiling.  Read More

Smartphones with simple lens attachments might soon be able to analyze fluid samples (Phot...

We've recently seen a number of projects aimed at creating Star Trek-like medical tricorders, that take the form of stand-alone electronic devices built specifically for the purpose. Now, however, scientists at the University of Houston are taking an approach that's currently popular in many other areas of product design – they've asked, "Why build a whole new device, if a smartphone can provide the electronics?". The result is a proposed phone lens attachment, that could be used to diagnose diseases in real time.  Read More

In this false-color image, E. coli bacteria (green dots) can be seen trapped around pit me...

In many parts of the world, the presence of harmful bacteria makes it vitally important that water from lakes or rivers be thoroughly filtered before being consumed. While materials such as silver nanoparticles and titanium dioxide will do the job, people in developing nations or rural settings typically need something a lot cheaper and easier to manufacture. As it turns out, wood from pine trees works great.  Read More

Patterns created by bacteria swimming through the living liquid crystal

With any medical condition, the earlier it's detected, the better the chances are of successfully treating it. When assessing biological samples from a patient, however, it's often quite difficult to see the indicators of a disease when it's still in its early stages. That could be about to change, thanks to the development of a solution known as "living liquid crystal."  Read More

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