Interaction of tyrosine-, tryptophan-, and lysine-containing polypeptides with single-wall carbon nanotubes and its relevance for the rational design of dispersing agents
The polypeptides poly-L-(Trp,Lys·HBr) (Trp/Lys·HBr = n/m) and poly-L-(Tyr,Lys·HBr) (Tyr/Lys·HBr = n/m) were tested as dispersing agents for single-wall carbon nanotubes (SWCNTs) for n/(n+m) values of 0, 0.2, and 1. Best results were obtained for the two copolymers, illustrating the importance of usi...
| Hoofdauteurs: | , , , , |
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| Formaat: | Journal article |
| Taal: | English |
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2007
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| _version_ | 1826290740598145024 |
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| author | Salzmann, C Ward, M Jacobs, R Tobias, G Green, M |
| author_facet | Salzmann, C Ward, M Jacobs, R Tobias, G Green, M |
| author_sort | Salzmann, C |
| collection | OXFORD |
| description | The polypeptides poly-L-(Trp,Lys·HBr) (Trp/Lys·HBr = n/m) and poly-L-(Tyr,Lys·HBr) (Tyr/Lys·HBr = n/m) were tested as dispersing agents for single-wall carbon nanotubes (SWCNTs) for n/(n+m) values of 0, 0.2, and 1. Best results were obtained for the two copolymers, illustrating the importance of using amphiphilic dispersing agents. The dispersion effect is 3.5 times higher for the copolymer containing tryptophan, indicating a stronger interaction of the tryptophan residue with the SWCNTs compared to tyrosine. The degrees of debundling of the SWCNTs and the apparent binding of the polypeptides with the SWCNTs are analyzed by atomic force microscopy for the different dispersions. The interactions of the aromatic amino acid residues with the SWCNTs are further probed by using optical absorbance and fluorescence spectroscopy. © 2007 American Chemical Society. |
| first_indexed | 2024-03-07T02:48:49Z |
| format | Journal article |
| id | oxford-uuid:acf94dae-98b6-444e-82f0-fc4d4b8af3d8 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T02:48:49Z |
| publishDate | 2007 |
| record_format | dspace |
| spelling | oxford-uuid:acf94dae-98b6-444e-82f0-fc4d4b8af3d82022-03-27T03:32:22ZInteraction of tyrosine-, tryptophan-, and lysine-containing polypeptides with single-wall carbon nanotubes and its relevance for the rational design of dispersing agentsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:acf94dae-98b6-444e-82f0-fc4d4b8af3d8EnglishSymplectic Elements at Oxford2007Salzmann, CWard, MJacobs, RTobias, GGreen, MThe polypeptides poly-L-(Trp,Lys·HBr) (Trp/Lys·HBr = n/m) and poly-L-(Tyr,Lys·HBr) (Tyr/Lys·HBr = n/m) were tested as dispersing agents for single-wall carbon nanotubes (SWCNTs) for n/(n+m) values of 0, 0.2, and 1. Best results were obtained for the two copolymers, illustrating the importance of using amphiphilic dispersing agents. The dispersion effect is 3.5 times higher for the copolymer containing tryptophan, indicating a stronger interaction of the tryptophan residue with the SWCNTs compared to tyrosine. The degrees of debundling of the SWCNTs and the apparent binding of the polypeptides with the SWCNTs are analyzed by atomic force microscopy for the different dispersions. The interactions of the aromatic amino acid residues with the SWCNTs are further probed by using optical absorbance and fluorescence spectroscopy. © 2007 American Chemical Society. |
| spellingShingle | Salzmann, C Ward, M Jacobs, R Tobias, G Green, M Interaction of tyrosine-, tryptophan-, and lysine-containing polypeptides with single-wall carbon nanotubes and its relevance for the rational design of dispersing agents |
| title | Interaction of tyrosine-, tryptophan-, and lysine-containing polypeptides with single-wall carbon nanotubes and its relevance for the rational design of dispersing agents |
| title_full | Interaction of tyrosine-, tryptophan-, and lysine-containing polypeptides with single-wall carbon nanotubes and its relevance for the rational design of dispersing agents |
| title_fullStr | Interaction of tyrosine-, tryptophan-, and lysine-containing polypeptides with single-wall carbon nanotubes and its relevance for the rational design of dispersing agents |
| title_full_unstemmed | Interaction of tyrosine-, tryptophan-, and lysine-containing polypeptides with single-wall carbon nanotubes and its relevance for the rational design of dispersing agents |
| title_short | Interaction of tyrosine-, tryptophan-, and lysine-containing polypeptides with single-wall carbon nanotubes and its relevance for the rational design of dispersing agents |
| title_sort | interaction of tyrosine tryptophan and lysine containing polypeptides with single wall carbon nanotubes and its relevance for the rational design of dispersing agents |
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