Colour Engineering: from nature of applications.
Dra. Silvia Vignolini (University of Cambridge).
Jueves 4 de julio de 2019. 11:00 h.
Salón de Grados cicCartuja2
The most brilliant colours in nature are obtained by structuring transparent materials on the scale of the wavelength of visible light. By controlling/designing the dimensions of such nanostructures, it is possible to achieve extremely intense colourations over the entire visible spectrum without using pigments or colorants. Colour obtained through structure, namely structural colour, is widespread in the animal and plant kingdom [1]. Such natural photonic nanostructures are generally synthesised in ambient conditions using a limited range of biopolymers. Given these limitations, an amazing range of optical structures exists: from very ordered photonic structures [2], to partially disordered [3], to completely random ones [4].
In this seminar, I will introduce some striking example of natural photonic structures [2-4] and review our recent advances to fabricate bio-mimetic photonic structures using the same material as nature. Biomimetic with cellulose-based architectures enables us to fabricate novel photonic structures using low cost materials in ambient conditions [6-7]. Importantly, it also allows us to understand the biological processes at work during the growth of these structures in plants.
[1] Kinoshita, S. et al. (2008). Physics of structural colors. Rep. Prog. Phys. 71(7), 076401. [2] Vignolini, S. et al. (2012). Pointillist structural color in Pollia fruit. PNAS 109, 15712-15716.
[3] Moyroud, E. et al. (2017). Disorder in convergent floral nanostructures enhances signalling to bees. Nature 550, 469.
[4] Burresi M. et al. (2014) Bright-White Beetle Scales Optimise Multiple Scattering of Light. Sci. Rep. 4, 727
[5] Parker R. et al. (2018) The Self-Assembly of Cellulose Nanocrystals: Hierarchical Design of Visual Appearance. Adv Mat 30, 1704477
[6] Parker R. et al. (2016). Hierarchical Self- Assembly of Cellulose Nanocrystals in a Confined Geometry. ACS Nano, 10 (9), 8443–8449
[7] Liang H-L. et al. (2018). Roll-to-roll fabrication of touch-responsive cellulose photonic laminates, Nat Com 9, 4632
El objetivo es demostrar el esencial papel de los bioestimulantes agrícolas, y en concreto de aquellos elaborados a partir de biomasa de microalgas.
A cargo del Instituto de Ciencia de los Materiales de Sevilla, en colaboración con Centres Científics i Tecnològics Universitat de Barcelona.
Este año se han llevado el reconocimiento Manabe, Hasselmann y Parisi en la categoría de Física, mientras que List y MacMillan obtienen el premio en Química.
El grupo de Química de Superficies y Catálisis del ICMS, ha conseguido un proyecto de gran relevancia para la producción de biofuels en la última convocatoria del Ministerio.
En la investigación liderada por Vicente Mariscal y su grupo Simbiosis entre Planta y Cianobacteria, se ensaya un biofertilizante respetuoso con el medio ambiente.
Este año se celebrará el 24 de septiembre y contará con actividades presenciales además de online en la que participarán compañeros de nuestros institutos.
Irene, responsable del grupo de Interactómica del IIQ, ha sido elegida miembro del Comité de Educación de la International Union of Biochemistry and Molecular Biology, IUBMB).