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Landers J, Salamon S, Webers S, Wende H. Microscopic understanding of particle-matrix interaction in magnetic hybrid materials by element-specific spectroscopy. PHYSICAL SCIENCES REVIEWS 2021. [DOI: 10.1515/psr-2019-0116] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Abstract
Mössbauer spectroscopy is a well-known technique to study complex magnetic structures, due to its sensitivity to electronic and magnetic interactions of the probed nucleus with its electronic surrounding. It has also been applied to the emerging fields of magnetic hybrid materials as well as to ferrofluids, as information on the magnetic alignment and the velocity of the probed nucleus, i.e. of the particle it is embedded in, can be inferred from the spectra in addition to the above-mentioned quantities. Considering the wide range of preparation methods and sample properties, including fluids, particle powders, sintered pellets, polymer matrices and viscoelastic hydrogels, a considerable advantage of Mössbauer spectroscopy is the usage of γ-photons. This allows measurements on opaque samples, for which optical experiments are usually not feasible, also making the technique relatively independent of specific sample geometries or preparation. Using iron oxide nanoparticles in glycerol solution as an exemplary material here, the variety of system parameters simultaneously accessible via Mössbauer spectroscopy can be demonstrated: Spectra recorded for particles of different sizes provided information on the particles’ Brownian dynamics, including the effect of the shell thickness on their hydrodynamic diameter, the presence (or absence) and ballpark frequency of Néel superspin relaxation as well as the particles’ average magnetic orientation in external magnetic fields. For single-core particles, this resulted in the observation of standard Langevin-type alignment behavior. Mössbauer spectra additionally provide information on the absolute degree of spin alignment, also allowing the determination of the degree of surface spin canting, which limits the maximum magnetization of ferrofluid samples. Analyzing the alignment behavior of agglomerated particles for comparison, we found a completely different trend, in which spin alignment was further hindered by the competition of easy magnetic directions. More complex particle dynamics are observed when going from ferrofluids to hybrid materials, where the particle mobility and alignability depends not only on the particles’ shape and material, but also on the matrices’ inner structure and the acting force-transfer mechanism between particles and the surrounding medium. In ferrohydrogels for example, particle mobility in terms of Mössbauer spectroscopy was probed for different crosslinker concentrations, resulting in widely different mesh-sizes of the polymer network and different degrees of freedom. While a decrease in particle dynamics is clearly visible in Mössbauer spectroscopy upon rising crosslinker density, complementary AC-susceptometry experiments indicated no Brownian motion on the expected timescales. This apparent contradiction could, however, be explained by the different timescales of the experiments, probing either the relatively free Brownian motion on ultrashort timescales or the more bound state preventing extensive particle motion by interaction with the trapping mesh walls in the millisecond regime. However, it should also be considered that the effect of the surroundings on particle rotation in AC-susceptometry may also differ from the variation in translational motion, probed by Mössbauer spectroscopy. Being sensitive mainly to translational motion also results in a wide range of particles to be accessible for studies via Mössbauer spectroscopy, including larger agglomerates embedded in polymers, intended for remote-controlled heating. Despite the agglomerates’ wide distribution in effective diameters, information on particle motion was found to be in good agreement with AC-susceptometry experiments at ultralow frequencies in and above the polymer melting region, while additionally giving insight into Néel relaxation of the individual nanoparticles and their magnetic structure.
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Affiliation(s)
- Joachim Landers
- Faculty of Physics and Center for Nanointegration Duisburg-Essen (CENIDE) , University of Duisburg-Essen , Duisburg , Germany
| | - Soma Salamon
- Faculty of Physics and Center for Nanointegration Duisburg-Essen (CENIDE) , University of Duisburg-Essen , Duisburg , Germany
| | - Samira Webers
- Faculty of Physics and Center for Nanointegration Duisburg-Essen (CENIDE) , University of Duisburg-Essen , Duisburg , Germany
| | - Heiko Wende
- Faculty of Physics and Center for Nanointegration Duisburg-Essen (CENIDE) , University of Duisburg-Essen , Duisburg , Germany
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Landers J, Salamon S, Remmer H, Ludwig F, Wende H. In-Field Orientation and Dynamics of Ferrofluids Studied by Mössbauer Spectroscopy. ACS APPLIED MATERIALS & INTERFACES 2019; 11:3160-3168. [PMID: 30582794 DOI: 10.1021/acsami.8b16356] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
By studying the response behavior of ferrofluids of 6-22 nm maghemite nanoparticles in glycerol solution exposed to external magnetic fields, we demonstrate the ability of Mössbauer spectroscopy to access a variety of particle dynamics and static magnetic particle characteristics at the same time, offering an extensive characterization of ferrofluids for in-field applications; field-dependent particle alignment and particle mobility in terms of Brownian motion have been extracted simultaneously from a series of Mössbauer spectra for single-core particles as well as for particle agglomerates. Additionally, information on Néel superspin relaxation and surface spin frustration could be directly inferred from this analysis. Parameters regarding Brownian particle dynamics, as well as Néel-type relaxation behavior, obtained via Mössbauer spectroscopy, have been verified by complementary AC-susceptometry experiments, modulating the AC-field amplitude, and using an extended frequency range of 10-1 to 106 Hz, while field-dependent particle alignment has been cross-checked via magnetometry.
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Affiliation(s)
- Joachim Landers
- Faculty of Physics and Center for Nanointegration Duisburg-Essen (CENIDE) , University of Duisburg-Essen , Lotharstr. 1 , 47057 Duisburg , Germany
| | - Soma Salamon
- Faculty of Physics and Center for Nanointegration Duisburg-Essen (CENIDE) , University of Duisburg-Essen , Lotharstr. 1 , 47057 Duisburg , Germany
| | - Hilke Remmer
- Institute for Electrical Measurement Science and Fundamental Electrical Engineering , TU Braunschweig , Hans-Sommer-Straße 66 , 38106 Braunschweig , Germany
| | - Frank Ludwig
- Institute for Electrical Measurement Science and Fundamental Electrical Engineering , TU Braunschweig , Hans-Sommer-Straße 66 , 38106 Braunschweig , Germany
| | - Heiko Wende
- Faculty of Physics and Center for Nanointegration Duisburg-Essen (CENIDE) , University of Duisburg-Essen , Lotharstr. 1 , 47057 Duisburg , Germany
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Applications of Mössbauer Spectroscopy in Biomedical Research. Cell Biochem Biophys 2018; 77:15-32. [PMID: 29704106 DOI: 10.1007/s12013-018-0843-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Accepted: 04/07/2018] [Indexed: 10/17/2022]
Abstract
A brief review on the applications of Mössbauer spectroscopy in biomedical research discusses the results of more than fifty years of experience in this field. Basing on the numerous results the main directions of biomedical applications of Mössbauer spectroscopy are considered as follows: 1) studies of the quantitative changes of iron-containing biomolecules related to pathological processes; 2) studies of the qualitative changes in iron-containing biomolecules related to pathological processes; 3) studies of the effect of various environmental factors (physical, chemical, and biological) on iron-containing biomolecules; 4) studies of metabolic processes by means of analysis of the Mössbauer nuclides pathways in organisms; 5) studies of dynamic processes; 6) studies of pharmaceutical compounds and blood substitutes containing Mössbauer nuclides; 7) miscellaneous studies. Some examples of biomedical research using 57Fe, 57Co, 119Sn, 153Sm, and 197Au Mössbauer nuclides are presented.
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Deveci H, Ahmetli G, Ersoz M, Kurbanli R. Synthesis and metal ions sorption properties of styrene-based polymers. J Appl Polym Sci 2009. [DOI: 10.1002/app.29511] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Pomogailo AD. Polymer-immobilised nanoscale and cluster metal particles. RUSSIAN CHEMICAL REVIEWS 2007. [DOI: 10.1070/rc1997v066n08abeh000283] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Suzdalev IP, Suzdalev PI. Nanoclusters and nanocluster systems. Assembling, interactions and properties. RUSSIAN CHEMICAL REVIEWS 2007. [DOI: 10.1070/rc2001v070n03abeh000627] [Citation(s) in RCA: 99] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Ahmetli G, Tarlan E. Fe(II/III) adsorption onto styrene/divinyl benzene based polymers. J Appl Polym Sci 2007. [DOI: 10.1002/app.25982] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Principles and Mechanisms of Nanoparticle Stabilization by Polymers. METALLOPOLYMER NANOCOMPOSITES 2005. [DOI: 10.1007/3-540-26523-6_3] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Plachinda AS, Suzdalev IP, Kuznetsov IA, Baldokhin YV, Khromov VI. Effect of hydration on the dynamics of polymeric cation exchangers and polymeric sorbent inferred from the Rayleigh scattering of Mössbauer radiation. Russ Chem Bull 1998. [DOI: 10.1007/bf02494496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Grodzicki M, Flint H, Winkler H, Walker FA, Trautwein AX. Electronic Structure, Porphyrin Core Distortion, and Fluxional Behavior of Bis-Ligated Low-Spin Iron(II) Porphyrinates. J Phys Chem A 1997. [DOI: 10.1021/jp963039s] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Michael Grodzicki
- Institut für Physik, Medizinische Universität zu Lübeck, 160 Ratzeburger Allee, 23538 Lübeck, Germany, and Department of Chemistry, University of Arizona, Tucson, Arizona 85721
| | - Holger Flint
- Institut für Physik, Medizinische Universität zu Lübeck, 160 Ratzeburger Allee, 23538 Lübeck, Germany, and Department of Chemistry, University of Arizona, Tucson, Arizona 85721
| | - Heiner Winkler
- Institut für Physik, Medizinische Universität zu Lübeck, 160 Ratzeburger Allee, 23538 Lübeck, Germany, and Department of Chemistry, University of Arizona, Tucson, Arizona 85721
| | - F. Ann Walker
- Institut für Physik, Medizinische Universität zu Lübeck, 160 Ratzeburger Allee, 23538 Lübeck, Germany, and Department of Chemistry, University of Arizona, Tucson, Arizona 85721
| | - Alfred X. Trautwein
- Institut für Physik, Medizinische Universität zu Lübeck, 160 Ratzeburger Allee, 23538 Lübeck, Germany, and Department of Chemistry, University of Arizona, Tucson, Arizona 85721
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Study of intracluster atomic mobility in ultrafine clusters of ?-ferric oxide by Mossbauer spectroscopy and thermodynamical analysis. ACTA ACUST UNITED AC 1996. [DOI: 10.1007/bf01426632] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Investigation of bound diffusion of ultrafine particles of FeIII, hydroxide in a polymeric sorbent by Mössbauer spectroscopy. Russ Chem Bull 1996. [DOI: 10.1007/bf01431310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Smirnov GV, Kohn VG. Theory of nuclear resonant scattering of synchrotron radiation in the presence of diffusive motion of nuclei. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 52:3356-3365. [PMID: 9981454 DOI: 10.1103/physrevb.52.3356] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Suzdalev IP. Moessbauer spectroscopy, atomic mobility and thermodynamics of ultrafine clusters. J Radioanal Nucl Chem 1995. [DOI: 10.1007/bf02040003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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