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Towards Determination of Distances Between Nanoparticles and Grafted Paramagnetic Ions by NMR Relaxation

We developed an approach for determining distances between carbon nanoparticles and grafted paramagnetic ions and molecules by means of nuclear spin–lattice relaxation data. The approach was applied to copper-, cobalt- and gadolinium-grafted nanodiamonds, iron-grafted graphenes, manganese-grafted gr...

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Detalles Bibliográficos
Autores principales: Panich, A. M., Sergeev, N. A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Vienna 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5775391/
https://www.ncbi.nlm.nih.gov/pubmed/29391666
http://dx.doi.org/10.1007/s00723-017-0952-3
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author Panich, A. M.
Sergeev, N. A.
author_facet Panich, A. M.
Sergeev, N. A.
author_sort Panich, A. M.
collection PubMed
description We developed an approach for determining distances between carbon nanoparticles and grafted paramagnetic ions and molecules by means of nuclear spin–lattice relaxation data. The approach was applied to copper-, cobalt- and gadolinium-grafted nanodiamonds, iron-grafted graphenes, manganese-grafted graphene oxide and activated carbon fibers that adsorb paramagnetic oxygen molecules. Our findings show that the aforementioned distances vary in the range of 2.7–5.4 Å and that the fixation of paramagnetic ions to nanoparticles is most likely implemented by means of the surface functional groups. The nuclear magnetic resonance data data are compared with the results of electron paramagnetic resonance measurements and density functional theory calculations.
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spelling pubmed-57753912018-01-30 Towards Determination of Distances Between Nanoparticles and Grafted Paramagnetic Ions by NMR Relaxation Panich, A. M. Sergeev, N. A. Appl Magn Reson Original Paper We developed an approach for determining distances between carbon nanoparticles and grafted paramagnetic ions and molecules by means of nuclear spin–lattice relaxation data. The approach was applied to copper-, cobalt- and gadolinium-grafted nanodiamonds, iron-grafted graphenes, manganese-grafted graphene oxide and activated carbon fibers that adsorb paramagnetic oxygen molecules. Our findings show that the aforementioned distances vary in the range of 2.7–5.4 Å and that the fixation of paramagnetic ions to nanoparticles is most likely implemented by means of the surface functional groups. The nuclear magnetic resonance data data are compared with the results of electron paramagnetic resonance measurements and density functional theory calculations. Springer Vienna 2017-10-05 2018 /pmc/articles/PMC5775391/ /pubmed/29391666 http://dx.doi.org/10.1007/s00723-017-0952-3 Text en © The Author(s) 2017 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
spellingShingle Original Paper
Panich, A. M.
Sergeev, N. A.
Towards Determination of Distances Between Nanoparticles and Grafted Paramagnetic Ions by NMR Relaxation
title Towards Determination of Distances Between Nanoparticles and Grafted Paramagnetic Ions by NMR Relaxation
title_full Towards Determination of Distances Between Nanoparticles and Grafted Paramagnetic Ions by NMR Relaxation
title_fullStr Towards Determination of Distances Between Nanoparticles and Grafted Paramagnetic Ions by NMR Relaxation
title_full_unstemmed Towards Determination of Distances Between Nanoparticles and Grafted Paramagnetic Ions by NMR Relaxation
title_short Towards Determination of Distances Between Nanoparticles and Grafted Paramagnetic Ions by NMR Relaxation
title_sort towards determination of distances between nanoparticles and grafted paramagnetic ions by nmr relaxation
topic Original Paper
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5775391/
https://www.ncbi.nlm.nih.gov/pubmed/29391666
http://dx.doi.org/10.1007/s00723-017-0952-3
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