Triazine-Carbon Nanotubes: New Platforms for the Design of Flavin Receptors

[EN] The synthesis of functionalised carbon nanotubes as receptors for riboflavin (RBF) is reported. Carbon nanotubes, both single-walled and multi-walled, have been functionalised with 1,3,5-triazines and p-tolyl chains by aryl radical addition under microwave irradiation and the derivatives have b...

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Detalles Bibliográficos
Autores: Lucío, María Isabel|||0000-0001-7404-352X, Pichler, Federica, Ramírez, José Ramón, De la Hoz, Antonio, Sánchez-Migallón, Ana, Hadad, Caroline, Quintana, Mildred, Giuliani, Angela, Bracamonte, María Victoria, Fierro, Jose L. G., Tavagnaco, Claudio, Herrero, Maria Antonia, Prato, Maurizio, Vázquez, Ester
Tipo de recurso: artículo
Fecha de publicación:2016
País:España
Institución:Universitat Politècnica de València (UPV)
Repositorio:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
Idioma:inglés
OAI Identifier:oai:riunet.upv.es:10251/201983
Acceso en línea:https://riunet.upv.es/handle/10251/201983
Access Level:acceso abierto
Palabra clave:Donor-acceptor systems
Molecular recognition
Nanotubes
Noncovalent interactions
Receptors
QUIMICA ANALITICA
Descripción
Sumario:[EN] The synthesis of functionalised carbon nanotubes as receptors for riboflavin (RBF) is reported. Carbon nanotubes, both single-walled and multi-walled, have been functionalised with 1,3,5-triazines and p-tolyl chains by aryl radical addition under microwave irradiation and the derivatives have been fully characterised by using a range of techniques. The interactions between riboflavin and the hybrids were analysed by using fluorescence and UV/Vis spectroscopic techniques. The results show that the attached functional groups minimise the p-p stacking interactions be-tween riboflavin and the nanotube walls. Comparison of p-tolyl groups with the triazine groups shows that the latter have stronger interactions with riboflavin because of the presence of hydrogen bonds. Moreover, the triazine derivatives follow the Stern-Volmer relationship and show a high association constant with riboflavin. In this way, artificial receptors in catalytic processes could be designed through specific control of the interaction between functionalised carbon nanotubes and riboflavin.

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