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Meridian Institute

NTU Scientists Invent Superbug Killers

Summary posted by Meridian on 5/11/2012

Source: Nanyang Technological University (9 May 2012)

Author(s): n/a

A new coating, developed at Nanyang Technological University (NTU), Singapore, can destroy 99 percent of the bacteria and fungi it encounters. The coating, made from Dimethyldecylammonium Chitosan methacrylate, is a sponge-like polymer that holds a positive charge, and acts like a magnet-type force to draw in bacteria, which have a negative charge on their cell walls. Bacterium that come into contact with the coating are “sucked” into the nanopores, causing the cell to rupture, killing the bacterium. The coating is able to attract and kill bacteria without the need for antibiotics. According to Mary Chan, the acting chair of NTU’s School of Chemical and Biomedical Engineering, "The coating can also be applied on biomedical objects, such as catheters and implants to prevent bacterial infections, which is a serious cause of concern as many bacteria are now developing resistance to antibiotics - currently our main source of treatment for infections. By developing novel materials which uses physical interaction to kill bacteria cells, we envisage this can be an alternative form of treatment for bacterial infections in the near future." The product is already in use by two companies: a contact lens manufacturer; and, a company specializing in animal care products. The team hopes to extend its use to a wide range of biomedical and consumer products. The team has also developed a broad-spectrum antimicrobial solution that is able to kill off only bacteria and fungi, without harming human cells, in vitro.

The original article may still be available at http://news.ntu.edu.sg/pages/newsdetail.aspx?URL=http://news.ntu.edu.sg/news/Pages/NR2012_May09.aspx&Guid=85dc99fe-07fd-4e9c-a918-c01d39def1f5&Category=News+Releases

As tagged by Meridian Institute:

Stakeholders: AcademiaGovernment

Implications: Economic CompetitivenessGovernanceHuman Enhancement

Regions: Asia

Nanomaterial Category: Metal Nanoparticle

Health and Medical: DiseasesDevices

Minerals and Metals: Metals

Nanotechnology and Development News

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