Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button

android tablet pc

Home > Press > Fighting Against Bacteria

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

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.

Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

NREL Announces New Center Directors to lead R&D, Analysis Efforts September 30th, 2014

Yale University and Leica Microsystems Partner to Establish Microscopy Center of Excellence: Yale Welcomes Scientists to Participate in Core Facility Opening and Super- Resolution Workshops October 20 Through 31, 2014 September 30th, 2014

Speed at its limits September 30th, 2014

Research mimics brain cells to boost memory power September 30th, 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

QuantuMDx announce prototype handheld lab for 15 minute malaria diagnosis and drug resistance testing April 23rd, 2014

Nanovations Sets new Benchmark in Automotive Windscreen Coating Durability: Nanovations new automotive glass coating Vision Protect, sets new benchmark in glass coating durability March 23rd, 2014

Possible Futures

Air Force’s 30-year plan seeks 'strategic agility' August 1st, 2014

IBM Announces $3 Billion Research Initiative to Tackle Chip Grand Challenges for Cloud and Big Data Systems: Scientists and engineers to push limits of silicon technology to 7 nanometers and below and create post-silicon future July 10th, 2014

Virus structure inspires novel understanding of onion-like carbon nanoparticles April 10th, 2014

Local girl does good March 22nd, 2014


Speed at its limits September 30th, 2014

Ad-REIC vaccine: A magic bullet for cancer treatment September 30th, 2014

New Topical Hemostatic Agent: Neutral Self-Assembling Peptide Hydrogel September 30th, 2014

A Heartbeat Away? Hybrid "Patch" Could Replace Transplants: TAU researcher harnesses gold nanoparticles to engineer novel biocompatible cardiac patch September 30th, 2014


Park Systems Announces Outsourced Analytical Services Including AFM Surface Imaging, Data Analysis and Interpretation September 30th, 2014

Ad-REIC vaccine: A magic bullet for cancer treatment September 30th, 2014

New Topical Hemostatic Agent: Neutral Self-Assembling Peptide Hydrogel September 30th, 2014

Chemical interactions between silver nanoparticles and thiols: A comparison of mercaptohexanol again September 30th, 2014


Ad-REIC vaccine: A magic bullet for cancer treatment September 30th, 2014

How things coil: Researchers discover that simulation technology designed for Hollywood can be used as a predictive tool for understanding fundamental engineering problems September 29th, 2014

Penn Team Studies Nanocrystals by Passing Them Through Tiny Pores September 26th, 2014

New NIH/DOE Grant for Life Science Studies at NSLS-II: Funding will support operation of three powerful experimental stations designed to reveal detailed structures of proteins, viruses, and more September 23rd, 2014

The latest news from around the world, FREE

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

Nanotechnology Now Featured Books


The Hunger Project

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