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Title: Probing Biomolecular Interactions with Gold Nanoparticle-Decorated Single-Walled Carbon Nanotubes

Abstract

Hybrid nanomaterials comprising metal–graphitic interfaces are uniquely suitable to probe molecular interactions and the associated phenomena such as charge transfer and adsorbate spillover effects. In this paper, we study the modulation of the electronic and chemical properties of gold nanoparticle-decorated single-walled carbon nanotubes (SWCNT) using Raman spectroscopy and measurements of field-effect transistor (FET) characteristics. SWCNT are extremely sensitive to changes in the local electronic environment and therefore gold-analyte interactions may be probed both through changes in FET characteristics (as an electrical transducer) and in surface-enhanced Raman scattering (as a chromophore). We study these changes both experimentally and theoretically in order to elucidate the electronic structure of complex nanocomposites, and the information gathered from these experiments is applied to the study of biomolecular interactions with gold nanoparticle-decorated SWCNT. Lastly, this study, in addition to providing deeper understanding of metal–graphitic interfaces, will offer a combined approach to SWCNT biosensing methodology based on the dual monitoring of the FET–Raman characteristics, which we demonstrate through detection of glutathione.

Authors:
 [1];  [2];  [3];  [2];  [2]; ORCiD logo [2]
  1. Univ. of Pittsburgh, PA (United States). Department of Chemistry
  2. Univ. of Pittsburgh, PA (United States). Department of Chemistry
  3. National Energy Technology Lab. (NETL), Pittsburgh, PA, (United States); Univ. of Pittsburgh, PA (United States). Department of Chemical and Petroleum Engineering
Publication Date:
Research Org.:
National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV, and Albany, OR (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1477235
Grant/Contract Number:  
0954435
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Physical Chemistry. C
Additional Journal Information:
Journal Volume: 121; Journal Issue: 38; Journal ID: ISSN 1932-7447
Publisher:
American Chemical Society
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 36 MATERIALS SCIENCE

Citation Formats

Michael, Zachary P., Shao, Wenting, Sorescu, Dan C., Euler, Raymond W., Burkert, Seth C., and Star, Alexander. Probing Biomolecular Interactions with Gold Nanoparticle-Decorated Single-Walled Carbon Nanotubes. United States: N. p., 2017. Web. doi:10.1021/acs.jpcc.7b06056.
Michael, Zachary P., Shao, Wenting, Sorescu, Dan C., Euler, Raymond W., Burkert, Seth C., & Star, Alexander. Probing Biomolecular Interactions with Gold Nanoparticle-Decorated Single-Walled Carbon Nanotubes. United States. doi:10.1021/acs.jpcc.7b06056.
Michael, Zachary P., Shao, Wenting, Sorescu, Dan C., Euler, Raymond W., Burkert, Seth C., and Star, Alexander. Thu . "Probing Biomolecular Interactions with Gold Nanoparticle-Decorated Single-Walled Carbon Nanotubes". United States. doi:10.1021/acs.jpcc.7b06056. https://www.osti.gov/servlets/purl/1477235.
@article{osti_1477235,
title = {Probing Biomolecular Interactions with Gold Nanoparticle-Decorated Single-Walled Carbon Nanotubes},
author = {Michael, Zachary P. and Shao, Wenting and Sorescu, Dan C. and Euler, Raymond W. and Burkert, Seth C. and Star, Alexander},
abstractNote = {Hybrid nanomaterials comprising metal–graphitic interfaces are uniquely suitable to probe molecular interactions and the associated phenomena such as charge transfer and adsorbate spillover effects. In this paper, we study the modulation of the electronic and chemical properties of gold nanoparticle-decorated single-walled carbon nanotubes (SWCNT) using Raman spectroscopy and measurements of field-effect transistor (FET) characteristics. SWCNT are extremely sensitive to changes in the local electronic environment and therefore gold-analyte interactions may be probed both through changes in FET characteristics (as an electrical transducer) and in surface-enhanced Raman scattering (as a chromophore). We study these changes both experimentally and theoretically in order to elucidate the electronic structure of complex nanocomposites, and the information gathered from these experiments is applied to the study of biomolecular interactions with gold nanoparticle-decorated SWCNT. Lastly, this study, in addition to providing deeper understanding of metal–graphitic interfaces, will offer a combined approach to SWCNT biosensing methodology based on the dual monitoring of the FET–Raman characteristics, which we demonstrate through detection of glutathione.},
doi = {10.1021/acs.jpcc.7b06056},
journal = {Journal of Physical Chemistry. C},
number = 38,
volume = 121,
place = {United States},
year = {2017},
month = {8}
}

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