Laboratory of spin design
TalTech priority area
Research classification (Frascati)
Head of the research group
Research group member
Doctoral students
Keyword
Overview
NMR is a remarkably universal analyticalmethod since essential spin interactions can bereliably calculated. The spectra allow in principlea 3D reproduction of the entire spin system and associated atoms/molecules, even a dynamicsof it, given sufficient resolution and sensitivity.The group develops NMR sensors-probeheads,notably to use the most sensitive nuclei-hydrogens, in locally viscous and solid environment.The most critical feature is rapid sample spinning. We were the first to reach rates beyond120 kHz, getting presently over 150 kHz, whichfacilitates a practical inverse detection in solidstate NMR. The immediate sensitivity increaseis two orders of magnitude. The technology is applied in contemporary priority areas: biomedicalresearch and development of F-ion batteries asa safer and more potent alternative for Li-basedenergy storage. The related key competencescomprise CAD/CAM design, RF circuit modelling, technical ceramics processing and micromachining.
Important results
Due to our development of MAS NMR technology we succeeded for the first time to recordcorrelated dispersions of the chemical shifts of1H and 13C in solids. This enabled resolutionof crystalline and amorphous fractions of thewood cellulose.
Related department
Teadusgrupiga seotud publikatsioonid
- Paluch, P., Augustyniak, R., Org, M.-L., Vanatalu, K., Kaldma, A., Samoson, A., Stanek, J. NMR assignment of methyl groups in immobilized proteins using multiple-bond 13C homonuclear transfers, proton detection, and very fast MAS // Frontiers in Molecular Biosciences (2022) Vol. 9, Art. 828785.
https://doi.org/10.3389/fmolb.2022.828785 - Yuan, E. C.-Y., Huang, S.-J., Huang, H.-C., Sinkkonen, J., Oss, A., Org, M.-L., Samoson, A., Tai, H.-C., Chan, J. C. C. Faster magic angle spinning reveals cellulose conformations in woods // Chemical communications (2021) vol. 57, 34, p. 4110−4113.
https://doi.org/10.1039/D1CC01149A - Yan, E.C-Y., Chen, P.-W., Huang, S.-J., Org, M.-L., Samoson, A., Chan, J.C.C. Solid-state heteronuclear multiple-quantum spectroscopy under a magic-angle spinning frequency of 150 kHz // Journal of the Chinese Chemical Society (2022) Vol. 69, Issue 8, p. 1449-1461.
https://doi.org/10.1002/jccs.202200063 - Schledorn, M., Malar, A.A., Torosyan, A., Oss, A., Org, M.-L., Samoson, A. et al. Protein NMR spectroscopy at 150 kHz magic-angle spinning continues to improve resolution and mass sensitivity // Chembiochem : a European journal of chemical biology (2020) vol. 21, 17, p. 2540-2548.
https://doi.org/10.1002/cbic.202000341 - Zhang, Z., Oss, A., Org, M.-L., Samoson, A. et al. Selectively enhanced 1H-1H correlations in proton-detected solid-state NMR under ultrafast MAS conditions // The journal of physical chemistry letters (2020) vol. 11, 19, p. 8077−8083 : ill.
https://doi.org/10.1021/acs.jpclett.0c02412 - Paula, C., Wisser, D., Rangus, M., Vanatalu, K., Oss, A., Org, M.-L., Samoson, A. et al. Phase transformations in porous materials studied by in situ solid-state NMR spectroscopy and in situ X-ray diffraction // The journal of physical chemistry C (2020) vol. 124, 35, p. 19136−19145 : ill.
https://doi.org/10.1021/acs.jpcc.0c05921 - Molaiyan, P., Witter, R. CaF2 solid‐state electrolytes prepared by vapor pressure exposure and solid synthesis for defect and ionic conductivity tuning // Material design & processing communications (2020) vol. 2, 1, art. e76, 6 p. : ill.
https://onlinelibrary.wiley.com/doi/epdf/10.1002/mdp2.76 https://doi.org/10.1002/mdp2.76 - Witter, S., Samoson, A., Vilu, R., Witter, R. Screening of Nutraceuticals and Plant Extracts for Inhibition of Amyloid-β Fibrillation // Journal of Alzheimer's disease (2020) vol. 73, 3, p. 1003-1012 : ill.
https://doi.org/10.3233/JAD-190758 https://www.etis.ee/File/DownloadPublic/bf09dd82-f7d2-45eb-8e71-aac7816291c9?name=JAD_73_2020_1003.pdf&type=application%2Fpdf - Shin, M.-J., Veskioja, T., Titma, T., Samoson, A. Kemeny-Snell distance in nuclear magnetic resonance metabolomics // Applied magnetic resonance (2020) vol. 51, 12, p. 1637−1645.
https://doi.org/10.1007/s00723-020-01282-2 - Shin, M., Titma, T., Ludwig, C., Günther, U.L., Pikta, M., Zemtsovskaja, G., Viigimaa, M., Tanner, R., Samoson, A. The metabolic profile of ishemic heart disease by serum 1H NMR // 2017 Annual Meeting : abstract supplement : late-breaking abstract submissions : 2017, Baltimore. [S.l.] : Society of Toxicology, 2017. p. 154.
https://www.toxicology.org/pubs/docs/Tox/2017ToxSup.pdf - Reddy, M.A., Euchner, H., Witter, R., Clemenscd, O. Structure and electrochemical properties of Na2±xV3P2O13 (x = 0 and 1): a promising cathode material for sodium-ion batteries // Journal of materials chemistry A (2018) vol. 6, 16, p. 6947-6958 : ill.
https://doi.org/10.1039/C8TA00588E - Molaiyan, P., Witter, R. Surface defect‐enhanced conductivity of calcium fluoride for electrochemical applications // Material design & processing communications (2019) vol. 1, 4, art. e44, 10 p. : ill.
https://doi.org/10.1002/mdp2.44 - Mohammad, I., Witter, R. Testing Mg as an anode against BiF 3 and SnF 2 cathodes for room temperature rechargeable fluoride ion batteries // Materials Letters (2019) Vol. 244, p. 159 - 162.
https://doi.org/10.1016/j.matlet.2019.02.052 - Lin, Y.-L., Cheng, Y.-S., Org, M.-L., Oss, A., Samoson, A. et al. Preparation of fibril nuclei of beta-amyloid peptides in reverse micelles // Chemical communications (2018) vol. 54, 74, p. 10459–10462 : ill.
https://doi.org/10.1039/C8CC05882B - Malär, A. A., Smith-Penzel, S., Camenisch, G.-M., Wiegand, T., Samoson, A. et al. Quantifying proton NMR coherent linewidth in proteins under fast MAS conditions : a second moment approach // Physical chemistry chemical physics (2019) vol. 21, 35, p. 18850-18865 : ill.
https://doi.org/10.1039/c9cp03414e - Mohammad, I., Chable, J., Witter, R., Fichtner, M., Reddy, M. A. Synthesis of fast fluoride-ion-conductive fluorite-type Ba1–xSbxF2+x (0.1 ≤ x ≤ 0.4) : a potential solid electrolyte for fluoride-ion batteries // ACS applied materials and interfaces, ACS applied materials & interfaces (2018) 10, 20, p. 17249–17256 : ill.
https://doi.org/10.1021/acsami.8b04108 - Mohammad, I., Witter, R., Fichtner, M., Reddy, M. A. Introducing interlayer electrolytes : toward room-temperature high-potential solid-state rechargeable fluoride ion batteries // ACS Applied Energy Materials (2019) vol. 2, 2, p. 1553–1562 : ill.
https://doi.org/10.1021/acsaem.8b02166 - Samoson, A. H-MAS // Journal of magnetic resonance (2019) vol. 306, p. 167-172 : ill.
https://doi.org/10.1016/j.jmr.2019.07.010 - Sternberg, U., Witter, R., Kuprov, I., Lamley, J.M., Oss, A., Lewandowski, J.R., Samoson, A. 1H line width dependence on MAS speed in solid state NMR - comparison of experiment and simulation // Journal of magnetic resonance (2018) vol. 291, p. 32-39 : ill.
https://doi.org/10.1016/j.jmr.2018.04.003 - Penzel, S., Oss, A., Org, M.-L., Samoson, A. et al. Spinning faster: protein NMR at MAS frequencies up to 126kHz // Journal of biomolecular NMR (2019) vol. 73, 1-2, p. 19−29.
https://doi.org/10.1007/s10858-018-0219-9 - Witter, S., Witter, R., Vilu, R., Samoson, A. Medical plants and nutraceuticals for amyloid-β fibrillation inhibition // Journal of Alzheimer's Disease Reports (2018) vol. 2, 1, p. 239-252 : ill.
http://doi.org/10.3233/ADR-180066 - Feng, G., Zhang, F., Banakar, S., Karlep, L., Li, Z. Analysis of functional gene transcripts suggests active CO2 assimilation and CO oxidation by diverse bacteria in marine sponges // FEMS Microbiology Ecology (2019) Vol. 95, 7, art. fiz087.
https://doi.org/10.1093/femsec/fiz087 - He, L., Karlep, L., Li, Z. The Nitrogen-Cycling Network of Bacterial Symbionts in the Sponge Spheciospongia vesparium // The Journal of Ocean University of China (2021) vol. 20, p. 999–1012.
https://doi.org/10.1007/s11802-021-4530-9 - Titma, T., Shin, M-J., Ludwig, C., Günther, U., Pikta, M., Zemtsovskaja, G., Viigimaa, M., Tanner, R., Samoson, A. The metabolic profile of stable ischemic heart disease by serum 1H NMR // Applied magnetic resonance (2019) vol. 50, 4, p. 527–539 : ill.
https://doi.org/10.1007/s00723-018-1084-0