Antibacterial

While implanted artificial teeth do offer a longer-term alternative to dentures, they may need to be surgically replaced if gum infections occur. Scientists are thus working on a better implant, that would generate electricity via mouth movements.

Bandaged wounds need to be checked for infection, yet removing the bandage to check the wound can delay its healing. Australian scientists may have a fix for this paradox, in the form of a dressing that glows if the wound is infected.

Despite the fact that it's made of fermented raw pork, the Vietnamese meat snack Nem Chua does not cause food poisoning in people who eat it. In fact, new research suggests that a compound found in it could be used as a natural food preservative.

It's no secret that the more we use antibiotics, the greater the chances that bacteria will develop a resistance to them. A new antibacterial wound dressing is designed to get around that problem, by using proteins instead of regular antibiotics.

Microneedle patches already show a great deal of promise as a painless alternative to hypodermic needles. A new one, however, could find use as a more effective means of treating serious bacterial infections of the skin.

In most grocery stores, all of the fresh produce is either pre-wrapped in plastic film or it gets placed in plastic bags – both of which are often discarded by consumers. A new bioactive paper bag, however, could serve the same purpose while being easily recyclable.

New weapons against so-called “superbugs” are desperately needed. A new black phosphorus coating quickly kills bacteria and fungi, then dissolves within 24 hours – and best of all, bacteria can’t evolve resistance against this mode of attack.

Bacteria have developed crafty weapons in their ongoing wars, such as tailocins, which act somewhat like “homing missiles” against their enemies. Now, researchers have investigated just how tailocins work, and how we might use them to our advantage.

It may be a bit gross, but mucus plays a key role in our bodies. Now, an MIT team has managed to create an artificial version of the stuff, and shown that it’s an effective antimicrobial – even more so than real mucus.

Although not a huge seller everywhere, durian fruit is consumed in great quantities in countries like Singapore. Scientists there have now developed a method of using its husks to create cheap, eco-friendly, antibacterial hydrogel bandages.

While you might think that dried almonds are one of the "safer" foods, they're actually prone to contamination by harmful bacteria. A simple new process could help keep that from happening, while also boosting their shelf life.

When a patient receives a titanium artificial hip, there's always the risk of an infection developing at the interface between the metal and the bone. A new implant-coating process, however, is intended to greatly reduce that risk.