Multifunctional molecular materials are organo-metallic compounds that can combine various physical or chemical properties. They are of great interest due to their versatility and application in various fields, for example in computing, catalysis, sensors, gas separation, biomedicine etc.
In particular, Single-Ion Magnets (SIMs) and Single Molecule Magnets (SMMs) are being intensively investigated due to their rich physical phenomenology and potential application in high-density information storage, quantum computing, spintronics, molecular switches etc.
Molecular chemistry offers a very attractive strategy to produce identical nano-magnetic systems, at the limit of miniaturization, that can be reproducibly synthesized and self-organize on surfaces, which is a prerequisite for device fabrication.
We are currently investigating on the preparation and characterization of different systems:
Molecular magnets (SIMs and SMMs) based on lanthanides:
- Magnetic relaxation mechanisms down to very low temperatures
- Bifunctional compounds with SMM behavior and luminescence
Metal-Organic Frameworks (MOFs):
- 2D-MOFs bifunctional based on lanthanides
- 2D MOFs of lanthanides deposited on functionalized surfaces
- Magnetic MOFs based on transition compounds
Magnetism of evaporated molecules on the surface:
- Phetalocyanines (FePc), cyclic molecules (Cr10) etc
The study of these materials is carried out by combining structural characterization techniques (XRD, LEED, XPS, SEM-EDX microscopy, TEM, STM, AFM), magnetometry (dc, ac down to mK), specific heat, synchrotron techniques (XAS, XMCD ), neutrons (INS), luminescence and calculations (ab initio, MonteCarlo, DFT).
“Relevant Properties for Immobilizing Short Peptides on Biosurfaces,” P. Sevilla, J. Gil, and C. Aparicio, IRBM, vol. 38, no. 5 (2017)
“Surface immobilization and bioactivity of TGF-β1 inhibitor peptides for bone implant applications,” P. Sevilla, K. V. Vining, J. Dotor, D. Rodriguez, F. J. Gil, and C. Aparicio, J. Biomed. Mater. Res. - Part B Appl. Biomater., vol. 104, no. 2, (2016)
“Anhydride-functional silane immobilized onto titanium surfaces induces osteoblast cell differentiation and reduces bacterial adhesion and biofilm formation,” M. Godoy-Gallardo, J. Guillem-Marti, P. Sevilla, J. M. Manero, F. J. Gil, and D. Rodriguez, Mater. Sci. Eng. C, vol. 59, (2016).
Dra. Ana Arauzo, Dr. Javier Rubín, Dr. Fernando Bartolomé, Prof. Juan Bartolome
Dra. Carolina Sañudo, Dr. Jesús Jover, Sr.Jonay González, Dr. Jorge Echeverría, Dr. Guillem Gabarró