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Graphene Oxide As A Tunable Analitic Plataform For The Improved Detection Of (Bio)Molecules

L4G07/06/2017 - 12:00 am

JOSÉ SANIGER

Grupo de Materiales y Tecnología Centro de Ciencias Aplicadas y Desarrollo Tecnológico (CCADET) Ciudad Universitaria, Circuito Exterior

Graphene oxide (GO), obtained from the exfoliation of graphitic acid, is also known as chemical graphene because of its versatile chemical structure and properties. Due to its outstanding surface properties, GO is being tested as an active support for catalysis and photocatalysis, for chemical and biological sensing, as well as for adsorption of organic pollutants, hydrogen storage and, more recently, as enhancer of the spectroscopic signals of molecules adsorbed on it surface. Nevertheless, each application requires a specific set of physicochemical properties, which can only be tuned from a deep knowledge of the structure/properties relationship of this material. The judicious manipulation of the oxygen species attached to the GO sheets, together with its chemical functionalization, is of major importance in order to modulate the interaction of the modified GO surface with the molecule to be detected. In this talk, some strategies for the controlled modification of the GO structure/properties will be presented together with some preliminary results, which demonstrate the efficacy of the GO substrates for the improved detection of bio-marker molecules.

Seminar, June 7, 2017, 12:00. Seminar Room

Hosted by Prof. Pablo Loza-Álvarez

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