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Improved non-covalent biofunctionalization of multi-walled carbon nanotubes using carbohydrate amphiphiles with a butterfly-like polyaromatic tail

Opened Access Improved non-covalent biofunctionalization of multi-walled carbon nanotubes using carbohydrate amphiphiles with a butterfly-like polyaromatic tail

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Autor: Assali, Mohyeddin
Pernía Leal, Manuel
Fernández Fernández, Inmaculada
Romero Gómez, Pablo
Baati, Rachid
Khiar el Wahabi, Noureddine
Departamento: Universidad de Sevilla. Departamento de Química Orgánica y Farmacéutica
Fecha: 2010
Publicado en: Nano Research, 3 (11), 764-778.
Tipo de documento: Artículo
Resumen: We have developed an efficient strategy for the non-covalent functionalization of multi-walled carbon nanotubes (MWCNTs) which allows a biomimetic presentation of carbohydrates on their surface by π-π stacking interactions. The strategy is based on the use of sugar-based amphiphiles functionalized with tetrabenzo[a,c,g,i]fluorene (Tbf), a polyaromatic compound with a topology that resembles a butterfly with open wings. The new carbohydrate-tethered Tbf amphiphiles have been synthesized in a straightforward manner using click chemistry. The reported method has been developed in order to improve the rather low ability of pyrene-based systems to exfoliate MWCNTs in water. By means of thermogravimetric analysis (TGA), ultraviolet (UV), infrared (IR), and fluorescence spectroscopies the interaction between MWCNTs and the Tbf group has been found to be stronger than those involving pyrene-based amphiphilic carbohydrates. The resulting aggregates with a multivalent sugar exposition on their ...
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Cita: Assali, M., Pernía Leal, M., Fernández Fernández, I., Romero Gómez, P., Baati, R. y Khiar el Wahabi, N. (2010). Improved non-covalent biofunctionalization of multi-walled carbon nanotubes using carbohydrate amphiphiles with a butterfly-like polyaromatic tail. Nano Research, 3 (11), 764-778.
Tamaño: 1.224Mb
Formato: PDF

URI: https://hdl.handle.net/11441/71465

DOI: 10.1007/s12274-010-0044-2

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