2026-10-09T19:04:07Z
https://api.figshare.com/v2/oai
oai:figshare.com:article/34046065
2026-10-01T13:36:26Z
category_146
category_915
category_7
category_21
category_734
category_69
portal_63
item_type_6
month_year_10_2026
Comparing Small-Angle
X‑ray Scattering Approaches
for Quantifying Magnetic-Field-Induced Orientation of Superparamagnetic
Iron Oxide Nanoparticles
Andreas F. Thünemann (1277145)
Space Science
Physical Sciences not elsewhere classified
Medicine
Biotechnology
Biological Sciences not elsewhere classified
Inorganic Chemistry
nematic liquid crystals
different procedures demonstrates
standardized analysis protocols
assisted data evaluation
induced orientational order
automated saxs workflows
magnetic field strength
free evaluation
analysis yielded
saxs provides
saxs ).
induced orientation
values obtained
scattering patterns
resovist ),
reproducible characterization
reliable basis
ray scattering
quantifying magnetic
potentially supported
particle concentration
originally introduced
orientation analyses
nanomaterials research
magnetic nanoparticles
longer term
colloidal systems
close agreement
biomedical applications
anisotropic nanostructures
angle x
analyzed using
The magnetic-field-induced orientation of superparamagnetic
multicore
iron oxide nanoparticles, exemplified by ferucarbotran (Resovist),
was quantified by small-angle X-ray scattering (SAXS). Scattering
patterns were recorded as a function of magnetic field strength and
particle concentration and analyzed using the Maier–Saupe orientational
distribution function, originally introduced for nematic liquid crystals.
This analysis yielded the second-order orientational order parameter,
which was compared with values obtained from a circular-function approach
and a model-free evaluation. The close agreement between the different
procedures demonstrates that SAXS provides a reliable basis for quantifying
field-induced orientational order in dispersions of multicore iron
oxide nanoparticles. Beyond its relevance for colloid and nanomaterials
research, this method comparison may also be useful for biomedical
applications of magnetic nanoparticles, for which reproducible characterization
and standardized analysis protocols are essential. In the longer term,
automated SAXS workflows, potentially supported by artificial-intelligence-assisted
data evaluation, could further improve the speed, robustness, and
comparability of orientation analyses in anisotropic nanostructures
and colloidal systems.
2026-10-01T00:00:00Z
Text
Journal contribution
10.1021/acs.langmuir.6c04285.s001
https://figshare.com/articles/journal_contribution/Comparing_Small-Angle_X_ray_Scattering_Approaches_for_Quantifying_Magnetic-Field-Induced_Orientation_of_Superparamagnetic_Iron_Oxide_Nanoparticles/34046065
CC BY-NC 4.0