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Toward tailored functional design of multi-walled carbon nanotubes (MWNTs): electrochemical and antimicrobial activity enhancement via oxidation and selective reduction.

Publication ,  Journal Article
Gilbertson, LM; Goodwin, DG; Taylor, AD; Pfefferle, L; Zimmerman, JB
Published in: Environmental science & technology
May 2014

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. 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. 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.

Duke Scholars

Published In

Environmental science & technology

DOI

EISSN

1520-5851

ISSN

0013-936X

Publication Date

May 2014

Volume

48

Issue

10

Start / End Page

5938 / 5945

Related Subject Headings

  • Photoelectron Spectroscopy
  • Oxygen
  • Oxidation-Reduction
  • Nanotubes, Carbon
  • Glutathione
  • Environmental Sciences
  • Electrons
  • Electrochemical Techniques
  • Anti-Infective Agents
 

Citation

APA
Chicago
ICMJE
MLA
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Gilbertson, L. M., Goodwin, D. G., Taylor, A. D., Pfefferle, L., & Zimmerman, J. B. (2014). Toward tailored functional design of multi-walled carbon nanotubes (MWNTs): electrochemical and antimicrobial activity enhancement via oxidation and selective reduction. Environmental Science & Technology, 48(10), 5938–5945. https://doi.org/10.1021/es500468y
Gilbertson, Leanne M., David G. Goodwin, André D. Taylor, Lisa Pfefferle, and Julie B. Zimmerman. “Toward tailored functional design of multi-walled carbon nanotubes (MWNTs): electrochemical and antimicrobial activity enhancement via oxidation and selective reduction.Environmental Science & Technology 48, no. 10 (May 2014): 5938–45. https://doi.org/10.1021/es500468y.
Gilbertson LM, Goodwin DG, Taylor AD, Pfefferle L, Zimmerman JB. Toward tailored functional design of multi-walled carbon nanotubes (MWNTs): electrochemical and antimicrobial activity enhancement via oxidation and selective reduction. Environmental science & technology. 2014 May;48(10):5938–45.
Gilbertson, Leanne M., et al. “Toward tailored functional design of multi-walled carbon nanotubes (MWNTs): electrochemical and antimicrobial activity enhancement via oxidation and selective reduction.Environmental Science & Technology, vol. 48, no. 10, May 2014, pp. 5938–45. Epmc, doi:10.1021/es500468y.
Gilbertson LM, Goodwin DG, Taylor AD, Pfefferle L, Zimmerman JB. Toward tailored functional design of multi-walled carbon nanotubes (MWNTs): electrochemical and antimicrobial activity enhancement via oxidation and selective reduction. Environmental science & technology. 2014 May;48(10):5938–5945.
Journal cover image

Published In

Environmental science & technology

DOI

EISSN

1520-5851

ISSN

0013-936X

Publication Date

May 2014

Volume

48

Issue

10

Start / End Page

5938 / 5945

Related Subject Headings

  • Photoelectron Spectroscopy
  • Oxygen
  • Oxidation-Reduction
  • Nanotubes, Carbon
  • Glutathione
  • Environmental Sciences
  • Electrons
  • Electrochemical Techniques
  • Anti-Infective Agents