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To keep dangerous bacteria off medical devices, coat them with this liquid

Posted in Science on 14th Feb, 2015 08:25 PM by AlexMuller

With antibiotic resistant microbes on the rise, plenty of researchers are looking into solutions. Scientists are working on everything, from air cocoons and electrical implants, to many other complicated alternatives. Now the most recent solution? A non-stick coating for medical devices.


The Harvard-developed coating isn't your standard Teflon. Instead it is a silicone polymer that is 'infused' with a silicone oil, a liquid so slippery that bacteria just slide off it, preventing the formation of dangerous biofilms, or mats of microorganisms. Biofilms can form on many different surfaces (think plaque on teeth) but when it forms on medical devices, they can cause serious infections.
This new silicone material can be used to coat surfaces like catheters, with the silicone oil acting like a kind of second coating, consistently coming to the surface of the catheter even if other liquids (water, blood, urine, etc.) rinse off some of the oil. Because the polymer can hold so much oil, the coating can be used over long periods of time, and it can be sterilized like other medical materials.
The researchers hope that this material, and other liquid infused polymers like it could eventually be used for numerous applications, including preventing buildup in oil pipes, sewage systems, and more.

Tags: medicinesurgerybacteriamicrobeshealthhospital

Read original article » Back to category


Author: Guest
Posted: 2015-02-15
New materials are the key for new technologies - problem of antibiotic resistant bacteria needs many solutions and this liquid coating could be one of them - good news Reply


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