---
_id: '63948'
abstract:
- lang: eng
  text: In this work, the behavior of four different commercially available polarizing
    agents is investigated employing the non-ionic model surfactant 1-octanol as analyte.
    A relative method for the comparison of the proportion of the direct and indirect
    polarization transfer pathways is established, allowing a direct comparison of
    the polarization efficacy for different radicals and different parts of the 1-octanol
    molecule despite differences in radical concentration or sample amount. With this
    approach, it could be demonstrated that the hydrophilicity is a key factor in
    the way polarization is transferred from the polarizing agent to the analyte.
    These findings are confirmed by the determination of buildup times Tb, illustrating
    that the choice of polarizing agent plays an essential role in ensuring an optimal
    polarization transfer and therefore the maximum amount of enhancement possible
    for DNP enhanced NMR measurements.
author:
- first_name: Sonja C.
  full_name: Döller, Sonja C.
  last_name: Döller
- first_name: Torsten
  full_name: Gutmann, Torsten
  id: '118165'
  last_name: Gutmann
- first_name: Markus
  full_name: Hoffmann, Markus
  last_name: Hoffmann
- first_name: Gerd
  full_name: Buntkowsky, Gerd
  last_name: Buntkowsky
citation:
  ama: Döller SC, Gutmann T, Hoffmann M, Buntkowsky G. A case study on the influence
    of hydrophilicity on the signal enhancement by dynamic nuclear polarization. <i>Solid
    State Nuclear Magnetic Resonance</i>. 2022;122:101829.
  apa: Döller, S. C., Gutmann, T., Hoffmann, M., &#38; Buntkowsky, G. (2022). A case
    study on the influence of hydrophilicity on the signal enhancement by dynamic
    nuclear polarization. <i>Solid State Nuclear Magnetic Resonance</i>, <i>122</i>,
    101829.
  bibtex: '@article{Döller_Gutmann_Hoffmann_Buntkowsky_2022, title={A case study on
    the influence of hydrophilicity on the signal enhancement by dynamic nuclear polarization},
    volume={122}, journal={Solid State Nuclear Magnetic Resonance}, author={Döller,
    Sonja C. and Gutmann, Torsten and Hoffmann, Markus and Buntkowsky, Gerd}, year={2022},
    pages={101829} }'
  chicago: 'Döller, Sonja C., Torsten Gutmann, Markus Hoffmann, and Gerd Buntkowsky.
    “A Case Study on the Influence of Hydrophilicity on the Signal Enhancement by
    Dynamic Nuclear Polarization.” <i>Solid State Nuclear Magnetic Resonance</i> 122
    (2022): 101829.'
  ieee: S. C. Döller, T. Gutmann, M. Hoffmann, and G. Buntkowsky, “A case study on
    the influence of hydrophilicity on the signal enhancement by dynamic nuclear polarization,”
    <i>Solid State Nuclear Magnetic Resonance</i>, vol. 122, p. 101829, 2022.
  mla: Döller, Sonja C., et al. “A Case Study on the Influence of Hydrophilicity on
    the Signal Enhancement by Dynamic Nuclear Polarization.” <i>Solid State Nuclear
    Magnetic Resonance</i>, vol. 122, 2022, p. 101829.
  short: S.C. Döller, T. Gutmann, M. Hoffmann, G. Buntkowsky, Solid State Nuclear
    Magnetic Resonance 122 (2022) 101829.
date_created: 2026-02-07T09:13:08Z
date_updated: 2026-02-17T16:18:26Z
extern: '1'
intvolume: '       122'
keyword:
- DNP NMR
- Dynamics
- Low temperature NMR
- Octanol
- Solid state NMR
- Surfactants
language:
- iso: eng
page: '101829'
publication: Solid State Nuclear Magnetic Resonance
status: public
title: A case study on the influence of hydrophilicity on the signal enhancement by
  dynamic nuclear polarization
type: journal_article
user_id: '100715'
volume: 122
year: '2022'
...