Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Study shows copper could help control MRSA contamination

06.07.2004


A new study by scientists at the University of Southampton suggests that MRSA contamination can be reduced by using copper alloys for surfaces in healthcare facilities.



Methicillin resistant Staphylococcus aureus (MRSA) is a virulent organism, essentially resistant to all beta-lactam antibiotics (for example: penicillins, ampicillins, cephalosporins). It can cause skin, bone and life-threatening blood infections, as well as pneumonia.

In a study co-funded by the International Copper Association and Copper Development Association Inc., New York, Professor Bill Keevil, Head of the Environmental Healthcare Unit in the University of Southampton’s School of Biological Sciences, and Dr Jonathan Noyce examined the survival rates of the organism on stainless steel, the most commonly used metal in healthcare facilities, and on selected copper alloys.


Their findings, which were reported recently at a meeting of the American Society for Microbiology in New Orleans, showed that at room temperature, MRSA was able to persist and remain viable in dried deposits on stainless steel for periods up to 72 hours.

For copper alloys containing 55 per cent, 80 per cent, and 99 per cent copper, significant reductions in viability were achieved after four and a half hours, three hours, and one and a half hours, respectively. Yellow brass rendered the bacteria completely inviable after 270 minutes, while the high-copper alloy took only 90 minutes.

‘Our results strongly indicate that use of the copper metals in such applications as door knobs, push plates, fittings, fixtures and work surfaces would considerably mitigate MRSA in hospitals and reduce the risk of cross-contamination between staff and patients in critical care areas,’ said Professor Keevil.

‘However, despite the significant performance of copper alloys in our study, we also noted that the survivability of MRSA on all metals at lower temperatures is much greater, indicating that hygiene is particularly imperative in those environments.’

Professor Keevil added that the antimicrobial effects of copper have been well documented. ‘Recent studies on E. coli O157 and Listeria monocytogenes on copper alloy surfaces show similar dramatic results, reducing viability of those pathogens from several weeks on stainless steel to only a matter of hours on copper alloys,’ he said.

Sarah Watts | alfa
Further information:
http://www.soton.ac.uk

More articles from Life Sciences:

nachricht Cryo-electron microscopy achieves unprecedented resolution using new computational methods
24.03.2017 | DOE/Lawrence Berkeley National Laboratory

nachricht How cheetahs stay fit and healthy
24.03.2017 | Forschungsverbund Berlin e.V.

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Giant Magnetic Fields in the Universe

Astronomers from Bonn and Tautenburg in Thuringia (Germany) used the 100-m radio telescope at Effelsberg to observe several galaxy clusters. At the edges of these large accumulations of dark matter, stellar systems (galaxies), hot gas, and charged particles, they found magnetic fields that are exceptionally ordered over distances of many million light years. This makes them the most extended magnetic fields in the universe known so far.

The results will be published on March 22 in the journal „Astronomy & Astrophysics“.

Galaxy clusters are the largest gravitationally bound structures in the universe. With a typical extent of about 10 million light years, i.e. 100 times the...

Im Focus: Tracing down linear ubiquitination

Researchers at the Goethe University Frankfurt, together with partners from the University of Tübingen in Germany and Queen Mary University as well as Francis Crick Institute from London (UK) have developed a novel technology to decipher the secret ubiquitin code.

Ubiquitin is a small protein that can be linked to other cellular proteins, thereby controlling and modulating their functions. The attachment occurs in many...

Im Focus: Perovskite edges can be tuned for optoelectronic performance

Layered 2D material improves efficiency for solar cells and LEDs

In the eternal search for next generation high-efficiency solar cells and LEDs, scientists at Los Alamos National Laboratory and their partners are creating...

Im Focus: Polymer-coated silicon nanosheets as alternative to graphene: A perfect team for nanoelectronics

Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are less stable. Now researchers at the Technical University of Munich (TUM) have, for the first time ever, produced a composite material combining silicon nanosheets and a polymer that is both UV-resistant and easy to process. This brings the scientists a significant step closer to industrial applications like flexible displays and photosensors.

Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are...

Im Focus: Researchers Imitate Molecular Crowding in Cells

Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to simulate these confined natural conditions in artificial vesicles for the first time. As reported in the academic journal Small, the results are offering better insight into the development of nanoreactors and artificial organelles.

Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

International Land Use Symposium ILUS 2017: Call for Abstracts and Registration open

20.03.2017 | Event News

CONNECT 2017: International congress on connective tissue

14.03.2017 | Event News

ICTM Conference: Turbine Construction between Big Data and Additive Manufacturing

07.03.2017 | Event News

 
Latest News

Argon is not the 'dope' for metallic hydrogen

24.03.2017 | Materials Sciences

Astronomers find unexpected, dust-obscured star formation in distant galaxy

24.03.2017 | Physics and Astronomy

Gravitational wave kicks monster black hole out of galactic core

24.03.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>