One of the most frequent complications of a wound is an infection. The reason is that the wound is the open door that makes the communication between the world and the inside of the body.

E-Coli

Bandages create an important barrier between the wound and the world. They can prevent the bacteria entering through the wound, invading and causing infection. But the problem is with bacteria that have already found the way into the scratch.

Nowadays is introduced a bandage that “sucks out” bacteria from a wound, in this way we remove them along with the bandage.

This technological project is not tested in human skin yet only on tissue engineered skin models.

The bacterial species tested are Escherichia coli and Staphylococcus aureus. Both of these bacteria are well known causes of chronic wound infections.

 

The bandage is created from a mesh of polymer filaments and each strand is 100 times thinner than a human hair.

This bandage was first tested on staphylococcus aureus and was observed that the bacteria quickly attached to the bandage fibers.

In a second test the strands of polymer were coated in different compounds. Based on this experiment researchers found out that E. coli adhered rapidly to fibers coated with allylamine.Killing of backteria

This bandage technology may seem a bit unnecessary for your everyday playground scrapes, but it may help a lot patients with compromised immune systems. This bandage has the potential to reduce the chance of infections in patients with diabetes, AIDS and cancer.

The bandage technology could have other related applications, for example in creating filters that don't let bacteria pass, protective clothing or scaffolds for growing tissue contamination-free. The next stage will be to test the bandages on human wounds, not just skin models.

References:

  • http://www.iflscience.com/health-and-medicine/bandage-sucks-bacteria-and-rips-them
  • http://www.cdc.gov/ecoli/
  • Image is adapted from: http://i.ytimg.com/vi/L77rERL64zc/maxresdefault.jpg
  • Image is adapted from: http://imgur.com/p7HeS2p

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