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1 article(s) from Stopa, Barbara

Dispersion of single-wall carbon nanotubes with supramolecular Congo red – properties of the complexes and mechanism of the interaction

Anna Jagusiak,
Barbara Piekarska,
Tomasz Pańczyk,
Małgorzata Jemioła-Rzemińska,
Elżbieta Bielańska,
Barbara Stopa,
Grzegorz Zemanek,
Janina Rybarska,
Irena Roterman and
Leszek Konieczny

Beilstein J. Nanotechnol. 2017, 8, 636–648, doi:10.3762/bjnano.8.68

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Figure 1: Absorption spectra of free Congo red (A) and SWNT-bound Congo red (D) (0.05 M Tris/HCl buffer, pH 7...

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Figure 2: Congo red structure: (A) at physiological pH; (B) ionization of the amino groups at acidic pH and c...

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Figure 3: Binding of CR to SWNTs in solutions of different ionic strength. All samples were in a 0.05 M Tris-...

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Figure 4: Binding of an increasing amount of CR by a constant amount of SWNTs (0.1 or 1 mg).

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Figure 5: SWNT–CR complexes formed at different CR/SWNT ratios. Macroscopic images of complexes filtered on P...

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Figure 6: Calorimetric profiles obtained for free CR and CR bound to SWNTs: (A) 2 mg/mL CR; (B) 5 mg/mL CR. T...

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Figure 7: Precipitation of the SWNT–CR complex upon incubation at increasing temperature; (A) absorption spec...

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Figure 8: Dynamic light scattering (DLS) measurements: comparison of SWNT–CR complexes and sodium cholate dis...

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Figure 9: Transmission electron microscope images. (A) SWNTs dispersed by sodium cholate; the diameter of the...

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Figure 10: Scanning electron microscope images. (A) undispersed, raw SWNTs; (B) SWNT–CR complexes formed at hi...

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Figure 11: AFM analyses of sodium cholate dispersed SWNTs (1) and SWNT–CR complexes (2); maps of mechanical pa...

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Figure 12: Diameter of nanotubes as measurements of height (AFM cross section analysis): (A) the diameter of a...

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Published 16 Mar 2017

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