Ildefonso Marin Montesinos

Junior Researcher

Scientic Interests


  • Methodology in solid-state NMR and Magic-Angle Spinning Dynamic Nuclear Polarization (MAS-DNP) techniques
  • Developing of protocols  and novel radicals for MAS-DNP
  • Dipolar recoupling techniques by symmetry-based pulse sequences
  • Other characterization techniques : Neutron scattering and refletometry, QCMd, AFM, ellipsometry.
  • Sample preparation of lipidic samples: Langmuir-Blodgett film formation and liposome formation techniques


  • Characterization of materials for gas retention (CO2, SF6) by MAS-DNP solid-state NMR
  • NMR and MAS-DNP characterization of porous materials for application in catalysis
  • Use of novel materials from different waste for gas adsorption
  • Conversion/adsorption of CO2 by amyloidal protein ensembles


  • Protein-Ligand interactions
  • Interaction site structure in protein-ligand binding
  • Characterization and study of membrane associated processes and biomolecules
  • Antimicrobial peptides
  • MAS-DNP and NMR characterization of biological systems
  • Structural study of the interaction interfaces of adaptor proteins involved in clathrin-mediated endocytosis (CME)
  • CME and its implications in degenerative diseases

Short CV

I obtained my BSc in Chemistry at the Universidad de Sevilla in 2001. By October 2003, I started a PhD programme funded by an EPSRC grant in the subject of Solid-State NMR (ssNMR) in the well-known group of Prof. Malcolm H. Levitt at the University of Southampton (UK). During my PhD, I acquired a solid theoretical and experimental knowledge of the NMR technique. As main outcome, I developed new methodology to improve homonuclear recoupling pulse sequences for the measurement of atomic distance, and its application to protein studies.
In November 2007, I joined the group of Prof. Ulrich Günther at University of Birmingham, where I entered in contact for the first time with the Dynamic Nuclear Polarization (DNP) technique, which is revolutionizing NMR, improving by far the sensitivity limits of the technique with an important impact in areas like surface chemistry. These works were performed in close collaboration with the industrial partner Oxford Instruments Biotools, using the HypeSense equipment. I worked in new fast NMR methodology for its application in dissolution-DNP, the study of the polarization transfer mechanisms in DNP and the development of hardware for dissolution-DNP.
By the end of 2010, I joined the Biomolecular NMR Laboratory of Prof. Miquel Pons at the IRB-Barcelona and the Universitat de Barcelona, after obtaining a “Beatriu de Pinos” and a “Juan de la Cierva” grants. The main research lines carried out were the characterization of paramagnetic supramolecular oligomers formed by trityl radicals, design and testing of new polarizing agents for DNP, the hyperpolarization of quadrupolar nuclei, like 14N, and the study of protein-ligand interactions by DNP-NMR.
In 2015, I earned a Labex ARCANE Postdoctoral Fellowship  to work in the laboratory of Dr. Gaël de Paëpe and Dr. Sabine Hediger at the CEA-Grenoble and Université Grenoble-Alpes in Grenoble (France). The main research line was the study of carbohydrate-protein interaction by MagicAngle-Spinning DNP (MAS-DNP) solid-state NMR in Lectins and application of MAS-DNP to the study of biomolecular problems. Additional projects involve the design and testing of new polarizing agents for MAS-DNP and its application to mesoporous materials, the mechanistic study of the polarization transfer process between electrons and nuclei, and the investigation of the influence of O2 in MAS-DNP experiments.
Since January 2019, I have joined the CICECO institute of the Universidade de Aveiro to work in study of materials for the trapping of CO2 by ssNMR and MAS-DNP in collaboration with Dr. Mariana Sardo and Dr. Luis Mafra. Additionally, I will develop my own research line in biomolecular MAS-DNP with a project to selectively enlightening of the interaction interfaces of clathrin adaptor proteins involved in clathrin-mediated endocytosis.

Research group

Team Specko:


Ongoing Supervisions


Exploring Molecular Dynamics of Adsorbed CO2 Species in Amine- Modified Porous Silica by Solid-State NMR Relaxation

Fonseca, R; Vieira, R; Sardo, M; Marin-Montesinos, I; Mafra, L
2022, JOURNAL OF PHYSICAL CHEMISTRY C, 126, 30, 12582-12591.

Targeted DNP for biomolecular solid-state NMR

Gauto, D; Dakhlaoui, O; Marin-Montesinos, I; Hediger, S; De Paepe, G
2021, CHEMICAL SCIENCE, 12, 18, 6223-6237.
ISBN: 2041-6539

Hidden CO2 in Amine-Modified Porous Silicas Enables Full Quantitative NMR Identification of Physi- and Chemisorbed CO2 Species

Vieira, R; Marin-Montesinos, I; Pereira, J; Fonseca, R; Ilkaeva, M; Sardo, M; Mafra, L
2021, JOURNAL OF PHYSICAL CHEMISTRY C, 125, 27, 14797-14806.
ISBN: 1932-7455

Selective High-resolution DNP-enhanced NMR of Biomolecular Binding Sites

Ildefonso Marin-Montesinos, David Goyard, Emilie Gillon, Olivier Renaudet, Anne Imberty,Sabine Hediger and Gaël De Paëpe
2019, Chemical Science, 10, 3366.

Detecting acetylated aminoacids in blood serum using hyperpolarized C-13-H-1-2D-NMR

Katsikis, S; Marin-Montesinos, I; Ludwig, C; Gunther, UL
ISBN: 1096-0856

Computationally Assisted Design of Polarizing Agents for Dynamic Nuclear Polarization Enhanced NMR: The AsymPol Family

F. Mentink-Vigier*, I. Marín-Montesinos*, A. P. Jagtap, J. van Tol, S. Hediger, D. Lee, S. Th. Sigurdsson, and G. De Paëpe
2018, Journal of the American Chemical Society, 140, 11013 -11019.

NMR signal enhancement of more than 50 000 times in fast dissolution dynamic nuclear polarization

Luiz F. Pinto, Ildefonso Marin-Montesinos, Vega Lloveras, José Luís. Muñoz-Gómez, Miquel Pons, Jaume Veciana, José Vidal-Gancedo
2017, Chemical Communications, 53, 3757.

Paramagnetic spherical nanoparticles by the self- assembly of persistent trityl radicals

I. Marin-Montesinos, J. C. Paniagua, Alejandro Peman, M. Vilaseca, F. Luis, S. Van Doorslaer and M. Pons
2016, Physical Chemistry Chemical Physics, 18, 3151-3158.

Improved stability and spectral quality in ex situ Dissolution-DNP using and improved transfer device

S. Katsikis, I. Marín-Montesinos, M. Pons, C. Ludwig and U. Günther
2015, Applied Magnetic Resonance, 46, 723.

Self-assembled trityl radical capsules. Implications for Dynamic Nuclear Polarization

I. Marín-Montesinos, J.C. Paniagua, M. Vilaseca, Ainhoa Urtizberea, Fernando Luís, M. Feliz, Feng Lin, S. Van Doorslaer and M. Pons
2015, Physical Chemistry Chemical Physics, 17, 5785.

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