Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

New process for combating germs: tailored antimicrobial coatings

04.04.2017

The Fraunhofer Institute for Organic Electronics, Electron Beam and Plasma Technology FEP is one of the leading institutions for collaborative research and development in thin-film technologies and electron-beam applications. The developed technologies are being effectively successfully employed in the fight against germs.

Just recently the World Health Organization (WHO) published a list with twelve families of bacteria that are resistant to conventional antibiotics. But dangerous germs are not only found in hospitals – they are lurking everywhere. The German publication Testbild tested ten hotel rooms in Berlin and found an “exceptionally high concentration of multi-resistant Staphylococci” in eight of them. That sounds alarming.


Antibacterial coatings from Fraunhofer FEP

For that reason, there is not just urgent work being done on new antibiotics, but on antimicrobial coatings as well as on processes for germ reduction and neutralization on surfaces found in daily life, especially for surfaces of medical products.

Scientists at Fraunhofer FEP have already been working for several years on antibacterial coatings for textile and polymeric surfaces that are highly effective yet tolerated by cells. PVD processes (physical vapor deposition) are employed for tailored and efficient coating of large areas. The scientists make use of the antibacterial effect of silver and copper, for example.

In addition, the surface morphology and energetic characteristics work against bacterial adhesion. That means germs are completely unable to even begin to gather on the surface. This strategy is also used for modifying the surfaces of coatings by means of non-thermal electron-beam technology in which the adhesion characteristics of surfaces can be specifically adapted.

“The precise composition and release of antimicrobial metal ions is especially important for metallic antibacterial coatings in order to ensure high effectiveness in the fight against germs while at the same time preserving compatibility with cells,” explains Dr. Jessy Schönfelder, head of the Medical Applications Group at Fraunhofer FEP. “Our know-how enables us to create a suitable ratio of components for any purpose and apply it to the surfaces to achieve modified and adapted surfaces with respect to their specific application.”

The effectiveness and the mechanisms of dissolution of the antibacterial metallic ions diffusing from the coatings were investigated using of Escherichia coli K12 bacteria. Cell biology experiments also demonstrated the compatibility of these coatings with human cells.

The scientists are now prepared to develop tailored coatings for any kind of application instance in the fight against germs.

During the SVC TechCon from April 29 to May 4th, 2017 in Providence, Rhode Island, USA, scientists of Fraunhofer FEP will present latest research and development results in coating technologies at our booth no. 319 and during the conference.
Fraunhofer FEP at SVC TechCon,
April 29 – May 4, 2017, Providence, Rhode Island, USA:
Exhibition: booth no. 319

Monday, May 1, 2017:
10:40 AM
Session: WebTech Roll-to-Roll Coatings for High-End Applications I, 553AB
Roll to roll deposition of transparent electrodes on permeation barrier coatings
Matthias Fahland, Fraunhofer FEP, Dresden, Germany

02:00 PM
Session: Coatings and Processes for Biomedical & Environmental Applications I, 553AB
Silver/copper-mixed layers as antimicrobial surface coating
Jessy Schönfelder, Fraunhofer FEP, Dresden, Germany

03:00 PM
Session: Coatings and Processes for Biomedical & Environmental Applications I, 553AB
Low Energy Electron Beam Irradiation of Liquids for Medical Applications
Javier Portillo, Fraunhofer FEP, Dresden, Germany

04:00 PM
Session: Coatings and Processes for Biomedical & Environmental Applications II, 553AB
DLC for medical-technical applications modified by electron beam
Jessy Schönfelder, Fraunhofer FEP, Dresden, Germany

04:20 PM
Session: Coatings and Processes for Biomedical & Environmental Applications II, 553AB
Low Energy Electron Beam Sterilization for Medical Technical Applications
Javier Portillo Casado, Fraunhofer FEP, Dresden, Germany

Tuesday, May 2, 2017:
10:20 AM
Session: WebTech Roll-to-Roll Coatings for High-End Applications II, 553AB
Sponsored Student: Roll-to-roll deposition of permeation barrier layers using a rotatable dual magnetron system
Anika Himmler, Fraunhofer FEP, Dresden, Germany

Wednesday, May 3, 2017:
10:20 AM
Session: Large Area Coatings I, Ballroom BC
Recent Developments of Optimized ITO Coatings on Ultra-Thin Flexible Glass in S2S and R2R processes
Manuela Junghähnel, Fraunhofer FEP, Dresden, Germany

POSTER Session

Tuesday, May 2, 2017: 02:00 – 03:30 PM
Influence of Thin-Film Properties on the Reliability of ultra-thin Glass
Jasper Westphalen, Fraunhofer FEP, Dresden, Germany

Nanostructuring on polymer surfaces by magnetron plasma treatment
John Fahlteich, Fraunhofer FEP, Dresden, Germany

Sources
www.who.int/mediacentre/news/releases/2017/bacteria-antibiotics-needed/en
www.ptext.de/nachrichten/testbild-hotelketten-test-multiresistente-keime-hotelzimmern-foto-1190449

Press contact:

Mrs. Annett Arnold

Fraunhofer Institute for Organic Electronics, Electron Beam and Plasma Technology FEP
Phone +49 351 2586 452 | annett.arnold@fep.fraunhofer.de
Winterbergstraße 28 | 01277 Dresden | Germany | www.fep.fraunhofer.de

Weitere Informationen:

http://s.fhg.de/8D4

Annett Arnold | Fraunhofer-Institut für Organische Elektronik, Elektronenstrahl- und Plasmatechnik FEP

Further reports about: Coatings Electron Beam Elektronik antimicrobial germs surfaces

More articles from Life Sciences:

nachricht New catalyst controls activation of a carbon-hydrogen bond
21.11.2017 | Emory Health Sciences

nachricht The main switch
21.11.2017 | Albert-Ludwigs-Universität Freiburg im Breisgau

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

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

Im Focus: Nanoparticles help with malaria diagnosis – new rapid test in development

The WHO reports an estimated 429,000 malaria deaths each year. The disease mostly affects tropical and subtropical regions and in particular the African continent. The Fraunhofer Institute for Silicate Research ISC teamed up with the Fraunhofer Institute for Molecular Biology and Applied Ecology IME and the Institute of Tropical Medicine at the University of Tübingen for a new test method to detect malaria parasites in blood. The idea of the research project “NanoFRET” is to develop a highly sensitive and reliable rapid diagnostic test so that patient treatment can begin as early as possible.

Malaria is caused by parasites transmitted by mosquito bite. The most dangerous form of malaria is malaria tropica. Left untreated, it is fatal in most cases....

Im Focus: A “cosmic snake” reveals the structure of remote galaxies

The formation of stars in distant galaxies is still largely unexplored. For the first time, astron-omers at the University of Geneva have now been able to closely observe a star system six billion light-years away. In doing so, they are confirming earlier simulations made by the University of Zurich. One special effect is made possible by the multiple reflections of images that run through the cosmos like a snake.

Today, astronomers have a pretty accurate idea of how stars were formed in the recent cosmic past. But do these laws also apply to older galaxies? For around a...

Im Focus: Visual intelligence is not the same as IQ

Just because someone is smart and well-motivated doesn't mean he or she can learn the visual skills needed to excel at tasks like matching fingerprints, interpreting medical X-rays, keeping track of aircraft on radar displays or forensic face matching.

That is the implication of a new study which shows for the first time that there is a broad range of differences in people's visual ability and that these...

Im Focus: Novel Nano-CT device creates high-resolution 3D-X-rays of tiny velvet worm legs

Computer Tomography (CT) is a standard procedure in hospitals, but so far, the technology has not been suitable for imaging extremely small objects. In PNAS, a team from the Technical University of Munich (TUM) describes a Nano-CT device that creates three-dimensional x-ray images at resolutions up to 100 nanometers. The first test application: Together with colleagues from the University of Kassel and Helmholtz-Zentrum Geesthacht the researchers analyzed the locomotory system of a velvet worm.

During a CT analysis, the object under investigation is x-rayed and a detector measures the respective amount of radiation absorbed from various angles....

Im Focus: Researchers Develop Data Bus for Quantum Computer

The quantum world is fragile; error correction codes are needed to protect the information stored in a quantum object from the deteriorating effects of noise. Quantum physicists in Innsbruck have developed a protocol to pass quantum information between differently encoded building blocks of a future quantum computer, such as processors and memories. Scientists may use this protocol in the future to build a data bus for quantum computers. The researchers have published their work in the journal Nature Communications.

Future quantum computers will be able to solve problems where conventional computers fail today. We are still far away from any large-scale implementation,...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Ecology Across Borders: International conference brings together 1,500 ecologists

15.11.2017 | Event News

Road into laboratory: Users discuss biaxial fatigue-testing for car and truck wheel

15.11.2017 | Event News

#Berlin5GWeek: The right network for Industry 4.0

30.10.2017 | Event News

 
Latest News

Previous evidence of water on mars now identified as grainflows

21.11.2017 | Physics and Astronomy

NASA's James Webb Space Telescope completes final cryogenic testing

21.11.2017 | Physics and Astronomy

New catalyst controls activation of a carbon-hydrogen bond

21.11.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>