Nanoparticles Prevent Disease

Medical devices coated with selenium nanoparticles reduce the growth of a deadly hospital-borne infection.

By | June 22, 2012

jurvetson" > Baloon catheter with stretchable electrodesFlickr, jurvetson

Baloon catheter with stretchable electrodesFLICKR, JURVETSON

By covering implanted devices like catheters with selenium nanoparticles, researchers at Brown University have reduced the growth of Staphylococcus aureus. The study, reported last week in the Journal of Biomedical Materials Research A, provides a novel method for preventing the formation of the bacterial biofilm on the devices, which, once formed, resist clearing with antibiotics.

“The longer we can delay or inhibit completely the formation of these colonies, the more likely your immune system will clear them,” senior author Thomas Webster from Brown University said in a press release. “Putting selenium on there could buy more time to keep an endotracheal tube in a patient.”

The coating appeared to reduce the growth, in some cases by as much as 90 percent, though the experiments were performed in vitro. The next step, the investigators said, is to start testing in animals.

Add a Comment

Avatar of: You

You

Processing...
Processing...

Sign In with your LabX Media Group Passport to leave a comment

Not a member? Register Now!

LabX Media Group Passport Logo

Comments

Avatar of: rhansing

rhansing

Posts: 20

June 25, 2012

Yeah... until the bugs develop resistance.

ron hansing

Popular Now

  1. Running on Empty
    Features Running on Empty

    Regularly taking breaks from eating—for hours or days—can trigger changes both expected, such as in metabolic dynamics and inflammation, and surprising, as in immune system function and cancer progression.

  2. Athletes’ Microbiomes Differ from Nonathletes
  3. Mutation Linked to Longer Life Span in Men
  4. Gut Feeling
    Daily News Gut Feeling

    Sensory cells of the mouse intestine let the brain know if certain compounds are present by speaking directly to gut neurons via serotonin.

AAAS