Feedback

Click-Functionalization of Silanized Carbon Nanotubes: From Inorganic Heterostructures to Biosensing Nanohybrids

ORCID
0000-0002-5600-5199
Affiliation
Department of Physics, University of Osnabrück, 49076 Osnabrück, Germany
Manoharan, Gririraj;
Affiliation
Department of Physics, University of Osnabrück, 49076 Osnabrück, Germany
Bösel, Petra;
ORCID
0000-0001-9304-3015
Affiliation
Department of Physics, University of Osnabrück, 49076 Osnabrück, Germany
Thien, Jannis;
ORCID
0000-0003-2396-2627
Affiliation
Center for Cellular Nanoanalytics, University of Osnabrück, 49076 Osnabrück, Germany
Holtmannspötter, Michael;
Affiliation
Institute of Condensed Matter Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91058 Erlangen, Germany
Meingast, Laura;
Affiliation
Department of Chemistry, University of Osnabrück, 49076 Osnabrück, Germany
Schmidt, Mercedes;
Affiliation
Department of Physics, University of Osnabrück, 49076 Osnabrück, Germany
Eickmeier, Henning;
Affiliation
Department of Physics, University of Osnabrück, 49076 Osnabrück, Germany
Haase, Markus;
Affiliation
Institute of Condensed Matter Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91058 Erlangen, Germany
Maultzsch, Janina;
Affiliation
Department of Chemistry, University of Osnabrück, 49076 Osnabrück, Germany
Steinhart, Martin;
Affiliation
Department of Physics, University of Osnabrück, 49076 Osnabrück, Germany
Wollschläger, Joachim;
Affiliation
Department of Chemistry, Queen Mary University of London, London E1 4NS, UK
Palma, Matteo;
ORCID
0000-0003-0851-2767
Affiliation
Department of Physics, University of Osnabrück, 49076 Osnabrück, Germany
Meyer, Carola

Here we present an approach to functionalize silanized single-walled carbon nanotubes (SWNTs) through copper-free click chemistry for the assembly of inorganic and biological nanohybrids. The nanotube functionalization route involves silanization and strain-promoted azide–alkyne cycloaddition reactions (SPACC). This was characterized by X-ray photoelectron spectroscopy, scanning electron microscopy, transmission electron microscopy, Raman spectroscopy and Fourier transform infra-red spectroscopy. Silane–azide-functionalized SWNTs were immobilized from solution onto patterned substrates through dielectrophoresis (DEP). We demonstrate the general applicability of our strategy for the functionalization of SWNTs with metal nanoparticles (gold nanoparticles), fluorescent dyes (Alexa Fluor 647) and biomolecules (aptamers). In this regard, dopamine-binding aptamers were conjugated to the functionalized SWNTs to perform real-time detection of dopamine at different concentrations. Additionally, the chemical route is shown to selectively functionalize individual nanotubes grown on the surface of silicon substrates, contributing towards future nano electronic device applications.

Cite

Citation style:
Could not load citation form.

Access Statistic

Total:
Downloads:
Abtractviews:
Last 12 Month:
Downloads:
Abtractviews:

Rights

License Holder: © 2023 by the authors.

Use and reproduction: