Dra. Ana M. Beltrán Custodio
Martes, 10 de diciembre de 2019. 10:00 h
Seminario de cicCartuja2
In this work, bacterial behavior on dense and porous titanium substrates is discussed. Porous titanium was fabricated by a space holder technique (using 50 vol%, NH4HCO3 with particle sizes between 250 and 355 μm). These substrates were coated by sulfonated PEEK (termed SPEEK). Characterization of the porous substrate was carried out using the Archimedes Method, Image Analysis, and three-dimensional X-ray Micro-Computed Tomography (including total and interconnected porosity, equivalent diameter, and pore shape factor), as well as mechanical characterization (specifically stiffness and yield strength).
A detailed study was performed here to investigate the influence of substrate porosity on the adhesion and proliferation of E. coli, MRSA, and P. aeruginosa (common causes of orthopedic device-associated infections). Bacterial colonization was examined in terms of the initial bacterial concentration, as well as bacterial adherence to and growth on the surface and inside the pores. Results suggest that fully dense titanium supported the least bacterial colonization, while the porous titanium promoted bacterial growth in the medium and inside the cavities.
Furthermore, the SPEEK coating deposited onto the samples inhibited bacteria growth inside the porous materials. In this manner, this study showed for the first time that SPEEK could have potential antibacterial properties to offset the increase in bacteria growth commonly observed in porous materials.
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).
Miguel hizo su tesis en el MOM, el grupo de investigación del ICMS
Jesús es nombrado vicepresidente del Grupo Especializado de Resonancia Magnética Nuclear de la Real Sociedad Española de Química.
Los premiados en el concurso de 10alamenos9 en Andalucía, ya han recibido su reconocimiento y diploma acreditativo.