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 One step closer to reality
20.04.2018 | Max-Planck-Institut für Entwicklungsbiologie

nachricht The dark side of cichlid fish: from cannibal to caregiver
20.04.2018 | Veterinärmedizinische Universität Wien

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

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

Im Focus: Spider silk key to new bone-fixing composite

University of Connecticut researchers have created a biodegradable composite made of silk fibers that can be used to repair broken load-bearing bones without the complications sometimes presented by other materials.

Repairing major load-bearing bones such as those in the leg can be a long and uncomfortable process.

Im Focus: Writing and deleting magnets with lasers

Study published in the journal ACS Applied Materials & Interfaces is the outcome of an international effort that included teams from Dresden and Berlin in Germany, and the US.

Scientists at the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) together with colleagues from the Helmholtz-Zentrum Berlin (HZB) and the University of Virginia...

Im Focus: Gamma-ray flashes from plasma filaments

Novel highly efficient and brilliant gamma-ray source: Based on model calculations, physicists of the Max PIanck Institute for Nuclear Physics in Heidelberg propose a novel method for an efficient high-brilliance gamma-ray source. A giant collimated gamma-ray pulse is generated from the interaction of a dense ultra-relativistic electron beam with a thin solid conductor. Energetic gamma-rays are copiously produced as the electron beam splits into filaments while propagating across the conductor. The resulting gamma-ray energy and flux enable novel experiments in nuclear and fundamental physics.

The typical wavelength of light interacting with an object of the microcosm scales with the size of this object. For atoms, this ranges from visible light to...

Im Focus: Basel researchers succeed in cultivating cartilage from stem cells

Stable joint cartilage can be produced from adult stem cells originating from bone marrow. This is made possible by inducing specific molecular processes occurring during embryonic cartilage formation, as researchers from the University and University Hospital of Basel report in the scientific journal PNAS.

Certain mesenchymal stem/stromal cells from the bone marrow of adults are considered extremely promising for skeletal tissue regeneration. These adult stem...

Im Focus: Like a wedge in a hinge

Researchers lay groundwork to tailor drugs for new targets in cancer therapy

In the fight against cancer, scientists are developing new drugs to hit tumor cells at so far unused weak points. Such a “sore spot” is the protein complex...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Invitation to the upcoming "Current Topics in Bioinformatics: Big Data in Genomics and Medicine"

13.04.2018 | Event News

Unique scope of UV LED technologies and applications presented in Berlin: ICULTA-2018

12.04.2018 | Event News

IWOLIA: A conference bringing together German Industrie 4.0 and French Industrie du Futur

09.04.2018 | Event News

 
Latest News

Magnetic nano-imaging on a table top

20.04.2018 | Physics and Astronomy

Start of work for the world's largest electric truck

20.04.2018 | Interdisciplinary Research

Atoms may hum a tune from grand cosmic symphony

20.04.2018 | Physics and Astronomy

VideoLinks
Science & Research
Overview of more VideoLinks >>>