Nanotechnology Now





Heifer International

Wikipedia Affiliate Button


DHgate

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

Clues to inner atomic life from subtle light-emission shifts: Hyperfine structure of light absorption by short-lived cadmium atom isotopes reveals characteristics of the nucleus that matter for high precision detection methods July 3rd, 2015

Pioneering Southampton scientist awarded prestigious physics medal July 3rd, 2015

Groundbreaking research to help control liquids at micro and nano scales July 3rd, 2015

Discovery of nanotubes offers new clues about cell-to-cell communication July 2nd, 2015

Products

Philips Introduces Quantum Dot TV with Color IQ™ Technology from QD Vision: Manufacturer is first to offer quantum dot displays for both TVs and monitors June 30th, 2015

Dais Analytic Unveils New Version of Aqualyte Membrane Technology: Updates to the Basis of the Company's Industry-Changing Nanotechnology Designed to Strengthen Position in Global Air, Energy, and Water Markets June 26th, 2015

Industrial Nanotech, Inc. Announces Launch of Heat Shield(TM) EPX4 Thermal Insulation and Chemical Resistant Coating June 12th, 2015

Industrial Nanotech, Inc. Announces Official Launch of the Eagle Platinum Tile™ May 19th, 2015

Possible Futures

Groundbreaking research to help control liquids at micro and nano scales July 3rd, 2015

Harris & Harris Group Portfolio Company D-Wave Systems Announces 1,000 Qubit Processor and is Discussed in the Economist June 23rd, 2015

Global Nanoclays Market Analysis, Size, Growth, Trends And Segment Forecasts, 2015 To 2022: Grand View Research, Inc June 15th, 2015

Healthcare Nanotechnology (Nanomedicine) Market Size To 2020 June 5th, 2015

Nanomedicine

Groundbreaking research to help control liquids at micro and nano scales July 3rd, 2015

Iranian Scientists Find Simple, Economic Method to Synthesize Antibacterial Nanoparticles July 2nd, 2015

Leti Announces Launch of First European Nanomedicine Characterisation Laboratory: Project Combines Expertise of 9 Partners in 8 Countries to Foster Nanomedicine Innovation and Facilitate Regulatory Approval July 1st, 2015

Chitosan coated, chemotherapy packed nanoparticles may target cancer stem cells June 30th, 2015

Announcements

Clues to inner atomic life from subtle light-emission shifts: Hyperfine structure of light absorption by short-lived cadmium atom isotopes reveals characteristics of the nucleus that matter for high precision detection methods July 3rd, 2015

Pioneering Southampton scientist awarded prestigious physics medal July 3rd, 2015

Groundbreaking research to help control liquids at micro and nano scales July 3rd, 2015

NIST Group Maps Distribution of Carbon Nanotubes in Composite Materials July 2nd, 2015

Nanobiotechnology

Groundbreaking research to help control liquids at micro and nano scales July 3rd, 2015

Engineering the world’s smallest nanocrystal July 2nd, 2015

Nanometric sensor designed to detect herbicides can help diagnose multiple sclerosis June 23rd, 2015

Newly-Developed Biosensor in Iran Detects Cocaine Addiction June 23rd, 2015

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