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Super Strong Antimicrobial Coatings For Medicine, Defense

Date:
July 8, 2008
Source:
American Chemical Society
Summary:
One of the world' strongest materials meets one of nature's most powerful germ killers in a new research project that produced incredibly tough anti-bacterial surfaces with multiple applications in home appliances, medicine, aerospace, and national defense.

Using the enzyme lysozyme (red) and single-walled carbon nanotubes, scientists report development of new antimicrobial coatings for use in household goods, defense and aerospace.
Credit: Courtesy of Samuel Ginn, Auburn University

One of the world' strongest materials meets one of nature's most powerful germ killers in a new research project that produced incredibly tough anti-bacterial surfaces with multiple applications in home appliances, medicine, aerospace, and national defense. Now there is a report on this long-awaited genre of stronger disinfectant surfaces.

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In the study, Virginia A. Davis and Aleksandr Simonian and colleagues point out that concern over the role of contaminated surfaces in the spread of infections has sparked a search for better antimicrobial coatings.

Scientists want to harness a powerful natural enzyme called lysozyme in that quest. However, they have not found a material strong enough to hold the enzyme in the desired fashion for long periods.

Their solution involved the first successful merging of lysozyme with single-walled carbon nanotubes (SWNTs). Only 1/50th the width of a human hair, SWNTs have exceptional strength and hold lysozyme in place, while other coatings lose their antimicrobial activity over time.

"The results of this research demonstrate the significant possibilities for the molecular design of hybrid structural materials from SWNTs and natural biopolymers," the report states. "Such robust, antimicrobial materials have significant promise in applications including medicine, aerospace engineering, public transportation, home appliances and sporting goods."


Story Source:

The above story is based on materials provided by American Chemical Society. Note: Materials may be edited for content and length.


Journal Reference:

  1. Nepal et al. Strong Antimicrobial Coatings: Single-Walled Carbon Nanotubes Armored with Biopolymers. Nano Letters, 2008; 0 (0): 0 DOI: 10.1021/nl080522t

Cite This Page:

American Chemical Society. "Super Strong Antimicrobial Coatings For Medicine, Defense." ScienceDaily. ScienceDaily, 8 July 2008. <www.sciencedaily.com/releases/2008/07/080707090528.htm>.
American Chemical Society. (2008, July 8). Super Strong Antimicrobial Coatings For Medicine, Defense. ScienceDaily. Retrieved November 26, 2014 from www.sciencedaily.com/releases/2008/07/080707090528.htm
American Chemical Society. "Super Strong Antimicrobial Coatings For Medicine, Defense." ScienceDaily. www.sciencedaily.com/releases/2008/07/080707090528.htm (accessed November 26, 2014).

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