Descripción del proyecto
Los secretos del oxígeno singlete en los cuadros
El oxígeno singlete es una de las especies reactivas del oxígeno conocidas por ser un fuerte oxidante. Algunos materiales, llamados «generadores de oxígeno singlete», lo producen al ser expuestos a la luz y en presencia de oxígeno. Pueden encontrarse incluso entre los pigmentos utilizados en cuadros históricos, ya que el oxígeno singlete tiene un gran efecto en la conservación de los pigmentos artísticos. El equipo del proyecto PHOTOELECTROART, financiado con fondos europeos, tiene como objetivo profundizar en el conocimiento de la fotorreactividad de pigmentos artísticos que generan oxígeno singlete, el efecto del medio ambiente y cómo puede aplicarse para mejorar la conservación de cuadros históricos. Para ello, los investigadores explotarán un proceso metodológico muy interdisciplinario basado en la fotoelectroquímica y la espectroscopia infrarroja.
Objetivo
Singlet oxygen (SO) is one of the reactive oxygen species known for being a strong oxidant. There are materials, called SO generators, that produce SO under light exposure and in presence of oxygen. SO generators can be found even among the pigments used in historical paintings. SO has a huge impact in the preservation of these historical paintings since it reacts with the binding media and other artistic pigments causing degradation processes that compromises their integrity.
The main goal of the PHOTOELECTROART project is to understand I) the photo-reactivity of artistic pigments that generate SO, II) the impact of the environment and microenvironment in the amount of SO emitted by these substances and III) how this can be applied to improve the preservation of historical paintings containing SO generator pigments. To achieve this, PHOTOELECTROART will exploit a highly interdisciplinary methodological process based on photo-electrochemistry and infrared spectroscopy, including IR nanospectroscopy.
Results will have a major impact in the understanding of the role of the SO emitted by the pigments in the alterations of the historical paintings where these are found, providing a detailed knowledge of the degradation reactions throughout the painting’s history and helping to find suitable mitigation actions to preserve the cultural heritage. Additionally, the results will provide new information on the conditions that boost the generation of SO from those pigments: this new knowledge will contribute to the development of innovative applications in fields where a high production of SO is needed, such as treatment of wastewaters and medical therapies.
Ámbito científico
Palabras clave
Programa(s)
- HORIZON.1.2 - Marie Skłodowska-Curie Actions (MSCA) Main Programme
Régimen de financiación
HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European FellowshipsCoordinador
30123 Venezia
Italia