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Functionalization of Single-walled Carbon Nanotubes with Thermo-reversible Block Copolymers and Characterization by Small-angle Neutron Scattering

Functionalization of Single-walled Carbon Nanotubes with Thermo-reversible Block Copolymers and Characterization by Small-angle Neutron Scattering

Published on: June 1, 2016

Acoplamiento de nanotubos de carbono y péptidos

Javier Montenegro¹, Carlos Vázquez-Vázquez, Arseny Kalinin

¹Singular Research Centre in Chemical Biology and Molecular Materials (CIQUS), Organic Chemistry Department, University of Santiago de Compostela (USC) , Santiago de Compostela 15782, Spain.

Journal of the American Chemical Society

|January 30, 2014

Resumen

Este estudio introduce nuevos compuestos duales nanotubulares, que combinan nanotubos de carbono de pared única (SWCNT) y nanotubos de péptido cíclico de autoensamblaje (SCPN). Estos híbridos exhiben matrices ordenadas, mayor estabilidad y auto-clasificación selectiva, allanando el camino para nuevos materiales funcionales.

Área de la Ciencia:

Ciencia de los materiales Ciencia de los materiales.
Nanotecnología La nanotecnología es la nanotecnología.
Química supramolecular de las moléculas.

Sus antecedentes:

Los nanotubos de carbono de pared única (SWCNT) y los nanotubos de péptido cíclico de autoensamblaje (SCPN) son arquitecturas nanotubulares clave.
El desarrollo de materiales híbridos con estructuras ordenadas y propiedades complementarias es un desafío significativo.

Objetivo del estudio:

Preparar y caracterizar materiales compuestos duales que integran SWCNTs y SCPNs.
Para investigar el efecto de plantilla de SWCNTs en el ensamblaje SCPN.
Explorar las propiedades y el comportamiento de autoclasificación de los híbridos resultantes SWCNT/SCPN.

Principales métodos:

Funcionalización no covalente de las SWCNT con las SCPN modificadas por pireno.
Caracterización de estructuras híbridas utilizando técnicas para matrices ordenadas.
Análisis de la conductividad eléctrica y de los fenómenos de autoclasificación en dispersiones acuosas.

Principales resultados:

Se prepararon con éxito compuestos duales con SWCNTs que plantean el ensamblaje de SCPN a través de interacciones de pireno.
Se lograron matrices orientadas y altamente ordenadas de los híbridos SWCNT/SCPN.
Se observó la estabilización mutua en solución acuosa y la autoclasificación selectiva de péptidos hacia SWCNT semiconductores.

Conclusiones:

La combinación ordenada de SWCNT y SCPN produce materiales híbridos estables y funcionales.
Los híbridos SWCNT / SCPN muestran un comportamiento único de autoclasificación y conductividad eléctrica.
Este enfoque ofrece una plataforma versátil para el diseño de nanomateriales avanzados mediante la sintonización de componentes péptidos.

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