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Journal of Nanomaterials
Volume 2013, Article ID 702157, 9 pages
Research Article

Grafting of Multiwalled Carbon Nanotubes with Chicken Feather Keratin

1Facultad de Ingeniería Eléctrica, Universidad Autónoma de Zacatecas, Avenida Ramón López Velarde No. 801, 98000 Zacatecas, ZAC, Mexico
2Departamento de Ingenieria Molecular de Materiales, Centro de Fisica Aplicada y Tecnologia Avanzada, Universidad Nacional Autónoma de México, Boulevard Juriquilla 3001, 76230, QRO, Mexico
3Centro Conjunto de Investigaciõn en Química Sustentable, UAEM-UNAM, Carretera Toluca-Atlacomulco Km.14.5, 52000 Toluca, MEX, Mexico
4División de Estudios de Posgrado e Investigación, Instituto Tecnológico de Querétaro, Avenida Tecnológico Esquina Mariano Escobedo, Centro Histórico, 76000, QRO, Mexico
5Instituto de Neurobiología, Universidad Nacional Autónoma de México, Campus UNAM-Juriquilla, 76230, QRO, Mexico

Received 10 January 2013; Revised 4 March 2013; Accepted 31 March 2013

Academic Editor: Tianxi Liu

Copyright © 2013 Yoxkin Estévez-Martínez et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Keratin, obtained from chicken feathers, was grafted on the surface of commercially available carbon nanotubes. The original procedure developed allows a covalent interaction between some specific chemical groups characteristic of the keratin, with some functional groups introduced on purpose on the surface of the nanotubes, as revealed by infrared and Raman spectroscopies, which also allowed to determine structural changes introduced during the process, such as crystallinity, which lead to changes in other properties, as well.