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New Findings in Chalcogens Described from Johns Hopkins University [Toward Tailored Functional Design of Multi-Walled Carbon Nanotubes (MWNTs):...

July 1, 2014



New Findings in Chalcogens Described from Johns Hopkins University [Toward Tailored Functional Design of Multi-Walled Carbon Nanotubes (MWNTs): Electrochemical and Antimicrobial Activity Enhancement via Oxidation and Selective Reduction]

By a News Reporter-Staff News Editor at Life Science Weekly -- New research on Chalcogens is the subject of a report. According to news reporting originating from Baltimore, Maryland, by NewsRx correspondents, research stated, "Multiwalled carbon nanotubes (MWNTs) are utilized in a number of sectors as a result of their favorable electronic properties. In addition, MWNT antimicrobial properties can be exploited or considered a potential liability depending on their intended application and handling."

Our news editors obtained a quote from the research from Johns Hopkins University, "The ability to tailor electrochemical and antimicrobial properties using economical and conventional treatment processes introduces the potential to significantly enhance product performance. Oxygen functional groups are known to influence several MWNT properties, including redox activity. Here, MWNTs were functionalized with oxygen groups using standard acid treatments followed by selective reduction via annealing. Chemical derivatization coupled to X-ray photoelectron spectroscopy was utilized to quantify specific surface oxygen group concentration after variable treatment conditions, which were then correlated to observed trends in electrochemical and antimicrobial activities. These activities were evaluated as the potential for MWNTs to participate in the oxygen reduction reaction and to have the ability to promote the oxidation of glutathione."

According to the news editors, the research concluded: "The compiled results strongly suggest that the reduction of surface carboxyl groups and the redox activity of carbonyl groups promote enhanced MWNT reactivity and elucidate the opportunity to design functional MWNTs for enhanced performance in their intended electrochemical or antimicrobial application."

For more information on this research see: Toward Tailored Functional Design of Multi-Walled Carbon Nanotubes (MWNTs): Electrochemical and Antimicrobial Activity Enhancement via Oxidation and Selective Reduction. Environmental Science & Technology, 2014;48(10):5938-5945. Environmental Science & Technology can be contacted at: Amer Chemical Soc, 1155 16TH St, NW, Washington, DC 20036, USA. (American Chemical Society - www.acs.org; Environmental Science & Technology - www.pubs.acs.org/journal/esthag)

The news editors report that additional information may be obtained by contacting L.M. Gilbertson, Johns Hopkins University, Dept. of Chem, Baltimore, MD 21218, United States. Additional authors for this research include D.G. Goodwin, A.D. Taylor, L. Pfefferle and J.B. Zimmerman (see also Chalcogens).

Keywords for this news article include: Maryland, Baltimore, Chemistry, Chalcogens, Fullerenes, United States, Nanotechnology, Electrochemical, Carbon Nanotubes, Emerging Technologies, North and Central America

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Life Science Weekly


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