Nanotechnology Now

Our NanoNews Digest Sponsors





Heifer International

Wikipedia Affiliate Button


android tablet pc

Home > Press > Fighting Against Bacteria

Abstract:
New nano-material kills antibiotic-resistant bacteria

Fighting Against Bacteria

Münster | Posted on September 23rd, 2009

Doctors are not well armed in the fight against antibiotic-resitant bacteria. It is very difficult - or, in the worst case, impossible - to fight such infections. A team of researchers in Münster has now developed a unique nano-material that kills antibiotic-resitant bacteria.

Researchers from Münster University and CeNTech (Center for NanoTechnology) were involved in the work, with Prof. Luisa De Cola leading the chemists and Prof. Berenike Maier heading the biologists. "Our results are a premiere. For the first time we have shown that it is possible to equip nano-particles with the following three functions: the particles adhere specifically to bacteria, mark them and then kill them off," says Dr. Cristian Strassert from the Physical Institute at WWU, who led the work on the study.

The starting material used by the researchers is so-called zeolite-L-nano-crystals. In a simple, inexpensive process these nano-particles are provided with a component which enables the particles to adhere to the surface of the bacteria. In addition, the particles are equipped with a colourant which glows green under a fluorescence microscope and makes the bacteria visible.

The effectiveness of the nano-particles is based on the "photodynamic therapy" method, whereby exposure to light sets off a reaction which kills the bacteria cells. The researchers also tack a third material on to the nano-crystals which is activated by red light and produces certain aggressive oxygen molecules. These oxygen molecules - "singlet oxygen" - start a chain reaction which destroys the bacteria cell.

The new nano-particles have hitherto adhered, through electrostatic interplay, to types of bacteria with certain surface properties ("gram-negativ"). The researchers are now working on making binding to other types of bacteria possible and increasing the binding specifity. In future the method could then be used to target certain bacteria in localised illnesses.

"Moreover," says Strassert, "we are looking at whether the method could be used not only to fight antibiotic-resitant bacteria, but also in the treatment of skin cancer." To this end the scientists want to get the nano-particles to bind specifically to cancer cells. "If that succeeds it would be conceivable for the nano-particles to be applied to the skin in future in a cream," says Strassert, describing his vision. "Through exposure to light the particles could then be activated and the cancer cells destroyed."

####

About Westfälische Wilhelms-Universität Münster
The research profile of the WWU Münster is marked by a considerable number of research focal points of proven excellence – in the humanities (including the Theological Faculties), law, business administration, natural sciences, mathematics and medicine. For example the Leibniz Prize, also known as the "German Nobel Prize", has been awarded to WWU Münster no fewer than four times since 2003. The award-winners are Prof. Hubert Wolf (theology), Prof. Barbara Stollberg-Rilinger (history), Prof. Klaus Mezger (geochemistry) and Prof. Wolfgang Lück (mathematics).

For more information, please click here

Contacts:
Schlossplatz 2
D-48149 Münster

Tel: +49(0)251/83-0
Fax: +49(0)251/83-3 20 90

Copyright © Westfälische Wilhelms-Universität Münster

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

HP Supercomputer at NREL Garners Top Honor October 19th, 2014

First Canada Excellence Research Chair gets $10 million from the federal government for oilsands research at the University of Calgary: Federal government announces prestigious research chair to study improving oil production efficiency October 19th, 2014

Ucore's McKenzie to Deliver Presentation to Rare Earths Conference in Singapore as Highlight of Fall 2014 Marketplace Schedule October 19th, 2014

Non-Toxic Nanocatalysts Open New Window for Significant Decrease in Reaction Process October 19th, 2014

Products

HZO Teams With Deutsche Telekom to Unveil the Waterproof Tolino Vision 2 eReader: The New HZO Protected eReader Ushers in a New Era of Waterproof Electronics, Providing a Seamless User Experience Without the Risk of Using Port Doors and Mechanical Seals October 10th, 2014

7th Nanotechnology Festival, Exhibition Kicks Off Work in Iran October 7th, 2014

Next-Gen Luxury RV From Global Caravan Technologies Will Offer MagicView Roof and Windshield Using SPD-SmartGlass Technology From Research Frontiers: Recreational Vehicle Manufacturer Global Caravan Technologies (GCT) Features 28 Square Feet of MagicView™ SPD-SmartGlass September 17th, 2014

Fonon at Cutting-Edge of 3D Military Printing: Live-Combat Scenarios Could See a Decisive Advantage with 3D Printing September 15th, 2014

Possible Futures

Superconducting circuits, simplified: New circuit design could unlock the power of experimental superconducting computer chips October 18th, 2014

Nanocoatings Market By Product Is Expected To Reach USD 8.17 Billion By 2020: Grand View Research, Inc. October 15th, 2014

Perpetuus Carbon Group Receives Independent Verification of its Production Capacity for Graphenes at 140 Tonnes per Annum: Perpetuus Becomes the First Manufacturer in the Sector to Allow Third Party Audit October 7th, 2014

PEN Inc. Chairman Scott Rickert Announces Company Vision, Product Priorities and Management Team: Webcast Highlights the Launch of PEN October 3rd, 2014

Nanomedicine

Non-Toxic Nanocatalysts Open New Window for Significant Decrease in Reaction Process October 19th, 2014

European Commission opens the gate towards the implementation of Nanomedicine Translation Hub October 16th, 2014

Nanodevices for clinical diagnostic with potential for the international market: The development is based on optical principles and provides precision and allows saving vital time for the patient October 15th, 2014

Tuning light to kill deep cancer tumors: Nanoparticles developed at UMass Medical School advance potential clinical application for photodynamic therapy October 15th, 2014

Announcements

HP Supercomputer at NREL Garners Top Honor October 19th, 2014

First Canada Excellence Research Chair gets $10 million from the federal government for oilsands research at the University of Calgary: Federal government announces prestigious research chair to study improving oil production efficiency October 19th, 2014

Ucore's McKenzie to Deliver Presentation to Rare Earths Conference in Singapore as Highlight of Fall 2014 Marketplace Schedule October 19th, 2014

Non-Toxic Nanocatalysts Open New Window for Significant Decrease in Reaction Process October 19th, 2014

Nanobiotechnology

Scientists Map Key Moment in Assembly of DNA-Splitting Molecular Machine: Crucial steps and surprising structures revealed in the genesis of the enzyme that divides the DNA double helix during cell replication October 15th, 2014

DNA nano-foundries cast custom-shaped metal nanoparticles: DNA's programmable assembly is leveraged to form precise 3D nanomaterials for disease detection, environmental testing, electronics and beyond October 10th, 2014

Charged graphene gives DNA a stage to perform molecular gymnastics October 9th, 2014

Nanoparticles get a magnetic handle: New method produces particles that can glow with color-coded light and be manipulated with magnets October 9th, 2014

NanoNews-Digest
The latest news from around the world, FREE





  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More














ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project







© Copyright 1999-2014 7th Wave, Inc. All Rights Reserved PRIVACY POLICY :: CONTACT US :: STATS :: SITE MAP :: ADVERTISE