Dispersion of single-walled carbon nanotubes modified with poly-l-tyrosine in water

In this study, complexes composed of poly-l-tyrosine (pLT) and single-walled carbon nanotubes (SWCNTs) were produced and the dispersibility of the pLT/SWCNT complexes in water by measuring the ζ potential of the complexes and the turbidity of the solution were investigated. It is found that the abso...

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Detalles Bibliográficos
Autores principales: Kojima, Mio, Chiba, Tomoka, Niishima, Junichiro, Higashi, Toshiaki, Fukuda, Takahiro, Nakajima, Yoshikata, Kurosu, Shunji, Hanajiri, Tatsuro, Ishii, Koji, Maekawa, Toru, Inoue, Akira
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer 2011
Materias:
Nano Express
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3211174/
https://www.ncbi.nlm.nih.gov/pubmed/21711636
http://dx.doi.org/10.1186/1556-276X-6-128
Descripción
Sumario:In this study, complexes composed of poly-l-tyrosine (pLT) and single-walled carbon nanotubes (SWCNTs) were produced and the dispersibility of the pLT/SWCNT complexes in water by measuring the ζ potential of the complexes and the turbidity of the solution were investigated. It is found that the absolute value of the ζ potential of the pLT/SWCNT complexes is as high as that of SWCNTs modified with double-stranded DNA (dsDNA) and that the complexes remain stably dispersed in the water at least for two weeks. Thermogravimetry analysis (TGA) and visualization of the surface structures of pLT/SWCNT complexes using an atomic force microscope (AFM) were also carried out.

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