The FACTORY promotes scientific excellence in Materials Sciences and Nanotechnology
The Material Sciences Factory is a scientific unit that includes several scientists and research teams of the ICMM with the goal of promoting the collaboration and a quantifiable scientific excellence in the areas of Material Sciences and Nanotechnology.
Our mission is to generate knowledge, materials and methods aimed to address and eventually solve societal problems in areas such as Energy, Health, Sustainability and information technologies. The unit will actively promote the scientific excellence in both research and the formation of young scientists.
The unit was formally constituted in June 2015 and officially approved by the ICMM direction in October 2015.
La FACTORÍA promueve la excelencia científica en Ciencia de Materiales y Nanotecnología
El objetivo de esta unidad es la generación de conocimientos, materiales y metodologías orientadas a resolver problemas de la sociedad en las áreas de Energía, Salud, Sostenibilidad y Tecnologías de la Información. Esta unidad tendrá como misión promover la excelencia cuantificable en la investigación científica y en la formación de jóvenes investigadores.
La constitución formal de la unidad se efectuó en junio de 2015 y fue oficialmente reconocida en Octubre de 2015. La unidad formaliza la trayectoria de colaboración entre los grupos que integran la unidad. Esta trayectoria está acreditada en numerosas publicaciones científicas y en la participación conjunta en proyectos científicos durante los últimos años.
Who we are?
What we Investigate?
Recent articles that made the cover of high impact journals.
van der Waals heterostructures (vdWH) are made of different two-dimensional (2D) layers stacked on top of each other, forming a single material with unique properties that differ from those of the individual 2D constituent layers, and that can be modulated through the interlayer interaction. These hetero-materials can be artificially made by mechanical stamping, solution processing or epitaxial growth. Alternatively, franckeite has been recently described as an example of a naturally-occurring vdWH that can be exfoliated down to nanometer thicknesses. Research on vdWHs has so far been limited to manually exfoliated and stamped individual devices. Here, a scalable and fast method to fabricate vdWH nanodevices from liquid phase exfoliated nanoflakes is reported. The transport and positioning of the flakes into localized submicrometer structures is achieved simultaneously in multiple devices via a dielectrophoretic process. The complex vdWH is preserved after dielectrophoresis and the properties of the resulting field-effect transistors are equivalent to those fabricated via mechanical exfoliation and stamping. The combination of liquid phase exfoliation and dielectrophoretic assembly is particularly suited for the study of vdWHs and applications where large-scale fabrication is required.
A three-dimensional covalent organic framework (COF-505) constructed from helical organic threads, designed to be mutually weaving at regular intervals, has been synthesized by imine condensation reactions of aldehyde functionalized copper(I)-bisphenanthroline tetrafluoroborate, Cu(PDB)2(BF4), and benzidine (BZ). The copper centers are topologically independent of the weaving within the COF structure and serve as templates for bringing the threads into a woven pattern rather than the more commonly observed parallel arrangement. The copper(I) ions can be reversibly removed and added without loss of the COF structure, for which a tenfold increase in elasticity accompanies its demetalation. The threads in COF-505 have many degrees of freedom for enormous deviations to take place between them, throughout the material, without undoing the weaving of the overall structure.
A random laser is a system formed by a random assembly of elastic scatterers dispersed into an optical gain medium1. The multiple light scattering replaces the standard optical cavity of traditional lasers and the interplay between gain and scattering determines the lasing properties. All random lasers studied to date have consisted of irregularly shaped or polydisperse scatterers, with a certain average scattering strength that was constant over the frequency window of the laser2, 3, 4. In this letter we consider the case where the scattering is resonant. We demonstrate that randomly assembled monodisperse spheres can sustain scattering resonances over the gain frequency window, and that the lasing wavelength can therefore be controlled by means of the diameter and refractive index of the spheres. The system is therefore a random laser with an a priori designed lasing peak within the gain curve.
Water in colloidal crystals, usually adsorbed from surrounding moisture, significantly affects their properties but also gives clues to general liquid-interface nanoscale phenomena. The unique features of colloidal crystals (as ordered, photonic structures) allow novel approaches for the study of nanoconfined water, which sometimes builds intriguing constructions, like that shown on the front cover. On page 2686, F. Gallego-Gómez, A. Blanco, and C. López critically review newly developed methods and recent results.
The aim of this research is to establish how metal–organic frameworks (MOFs) composed of more than one metal in equivalent crystallographic sites (solid solution MOFs) exhibit catalytic activity, which is tunable by virtue of the metal ions ratio. New MOFs with general formula [InxGa1–x(O2C2H4)0.5(hfipbb)] were prepared by the combination of Ga and In. They are isostructural with their monometal counterparts, synthesized with Al, Ga, and In. Differences in their behavior as heterogeneous catalysts in the three-component, one pot Strecker reaction illustrate the potential of solid solution MOFs to provide the ability to address the various stages involved in the reaction mechanism.
Understanding the mechanical functionalities of complex biological systems requires the measurement of the mechanical compliance of their smallest components. Here, we develop a force microscopy method to quantify the softness of a single antibody pentamer by measuring the stress–strain curve with force and deformation resolutions, respectively, of 5 pN and 50 pm. The curve shows three distinctive regions. For ultrasmall compressive forces (5–75 pN), the protein’s central region shows that the strain and stress are proportional (elastic regime). This region has an average Young’s modulus of 2.5 MPa. For forces between 80 and 220 pN, the stress is roughly proportional to the strain with a Young’s modulus of 9 MPa. Higher forces lead to irreversible deformations (plastic regime). Full elastic recovery could reach deformations amounting to 40% of the protein height. The existence of two different elastic regions is explained in terms of the structure of the antibody central region. The stress–strain curve explains the capability of the antibody to sustain multiple collisions without any loss of biological functionality.
On page 4357, C. López and co-workers perform a profuse and systematic study of factors affecting the hydrothermal synthesis of carbon spheres on polystyrene seeds. This green reaction allows the synthesis of hybrid polystyrene-carbon spheres monodisperse to below 5% with no-aggregation, in a size range between 500 and 900 nm (the range of interest for optical applications). These hybrid polystyrene-carbon spheres can be easily transformed into hollow carbon spheres with preserved monodispersity. Monodispersity and the ability to control porosity make them very attractive for various applications.
Este galardón reconoce sus contribuciones al desarrollo de nuevos métodos de microscopía de fuerzas que han permitido la caracterización con resolución atómica
La revista Nanoscale ha seleccionado para su portada el artículo «Simultaneous assembly of van der Waals heterostructures…» de Andres Castellanos del ICMM y E.
The Multifrequency AFM conference series aims to provide the environment where the experts and the newcomers in force microscopy and nanomechanics share
Andrés Castellanos del ICMM, premiado entre los diez mejores emprendedores e investigadores españoles según la publicación MIT Technology Review. Sus materiales para
La Subdirección General de Sistemas Espaciales del INTA, la empresa ASTI y Mar García Hernández del ICMM-CSIC, galardonados por el Foro de
1 st Workshop of the Materials Science Factory. 25th October 2017