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@ARTICLE{Reimers:1040571,
      author       = {Reimers, Jan and Mikulics, Martin and Lipinska-Chwalek,
                      Marta and Zeller-Plumhoff, Berit and Kibkalo, Lidia and
                      Kruth, Maximilian and Willumeit-Römer, Regine and Mayer,
                      Joachim and Hardtdegen, Hilde},
      title        = {{T}owards {C}orrelative {R}aman {S}pectroscopy–{STEM}
                      {I}nvestigations {P}erformed on a {M}agnesium–{S}ilver
                      {A}lloy {FIB} {L}amella},
      journal      = {Nanomaterials},
      volume       = {15},
      number       = {6},
      issn         = {2079-4991},
      address      = {Basel},
      publisher    = {MDPI},
      reportid     = {FZJ-2025-01938},
      pages        = {430 -},
      year         = {2025},
      abstract     = {In this study, a lamella prepared using focused ion beam
                      (FIB) milling from a magnesium–silver alloy wire was
                      investigated. The wire, intended for biomedical
                      applications, was initially degraded in simulated body fluid
                      (SBF) under physiological conditions. Raman spectroscopy was
                      performed across the entire FIB specimen and the results
                      were correlated with findings from scanning transmission
                      electron microscopy (STEM). Our micro-Raman analysis
                      identified chemical compounds at distinct regions within the
                      specimen. Dominant Raman modes at ~1350 cm−1 and ~1590
                      cm−1, likely derived from elemental carbon from the FIB
                      protection layer, were observed. Additionally, modes
                      indicative of the alloy’s interaction with SBF,
                      attributable to the constituents of SBF, were detected.
                      Notably, Raman modes at ~3650 cm−1 corresponding to the OH
                      stretching mode were identified in the targeted areas of the
                      lamella, highlighting the chemical interaction between
                      magnesium (Mg) and the SBF. The micro-Raman mapping images
                      showed localized Mg(OH)2 distributions, which correlated
                      strongly with the STEM analyses. This study underscores the
                      effectiveness of correlating Raman spectroscopy, revealing
                      chemical changes and STEM, capturing the corresponding
                      microstructural changes. The combined approach is crucial
                      for a deeper understanding of material degradation and
                      reactivity in biocompatible alloys under physiological
                      conditions and advances the characterization of
                      biocompatible materials in physiological environments.},
      cin          = {ER-C-2 / ER-C-1},
      ddc          = {540},
      cid          = {I:(DE-Juel1)ER-C-2-20170209 / I:(DE-Juel1)ER-C-1-20170209},
      pnm          = {5353 - Understanding the Structural and Functional Behavior
                      of Solid State Systems (POF4-535)},
      pid          = {G:(DE-HGF)POF4-5353},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {40137603},
      UT           = {WOS:001452889200001},
      doi          = {10.3390/nano15060430},
      url          = {https://juser.fz-juelich.de/record/1040571},
}