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Fang Y, Yang Y, Yao Z, Lei X, Dong Z, Zhang M, Yao R, Tian B. On-Particle Hyperbranched Rolling Circle Amplification-Scaffolded Magnetic Nanoactuator Assembly for Ferromagnetic Resonance Detection of MicroRNA. ACS Sens 2023; 8:4792-4800. [PMID: 38073137 DOI: 10.1021/acssensors.3c01967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
Inspired by natural molecular machines, scientists are devoted to designing nanomachines that can navigate in aqueous solutions, sense their microenvironment, actuate, and respond. Among different strategies, magnetically driven nanoactuators can easily be operated remotely in liquids and thus are valuable in biosensing. Here we report a magnetic nanoactuator swarm with rotating-magnetic-field-controlled conformational changes for reaction acceleration and target quantification. By grafting nucleic acid amplification primers, magnetic nanoparticle (MNP) actuators can assemble and be fixed with a flexible DNA scaffold generated by surface-localized hyperbranched rolling circle amplification in response to the presence of a target microRNA, osa-miR156. Net magnetic anisotropy changes of the system induced by the MNP assembly can be measured by ferromagnetic resonance spectroscopy as shifts in the resonance field. With a total assay time of ca. 120 min, the proposed biosensor offers a limit of detection of 6 fM with a dynamic detection range spanning 5 orders of magnitude. The specificity of the system is validated by testing different microRNAs and salmon sperm DNA. Endogenous microRNAs extracted from Oryza sativa leaves are tested with both quantitative reverse transcription-PCR and our approach, showing comparable performances with a Pearson correlation coefficient >0.9 (n = 20).
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Affiliation(s)
- Yuan Fang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan Provincial Key Laboratory of Plant Functional Genomics and Developmental Regulation, College of Biology, Hunan University, Changsha 410082, China
- Department of Biomedical Engineering, School of Basic Medical Sciences, Central South University, Changsha 410013, China
| | - Yulin Yang
- Department of Biomedical Engineering, School of Basic Medical Sciences, Central South University, Changsha 410013, China
| | - Ziyang Yao
- Department of Biomedical Engineering, School of Basic Medical Sciences, Central South University, Changsha 410013, China
| | - Xi Lei
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan Provincial Key Laboratory of Plant Functional Genomics and Developmental Regulation, College of Biology, Hunan University, Changsha 410082, China
| | - Zhuxin Dong
- Department of Biomedical Engineering, School of Basic Medical Sciences, Central South University, Changsha 410013, China
- Furong Laboratory, Changsha 410008, China
| | - Meng Zhang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan Provincial Key Laboratory of Plant Functional Genomics and Developmental Regulation, College of Biology, Hunan University, Changsha 410082, China
- Shenzhen Research Institute, Hunan University, Shenzhen 518000, China
| | - Ruifeng Yao
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan Provincial Key Laboratory of Plant Functional Genomics and Developmental Regulation, College of Biology, Hunan University, Changsha 410082, China
- Shenzhen Research Institute, Hunan University, Shenzhen 518000, China
| | - Bo Tian
- Department of Biomedical Engineering, School of Basic Medical Sciences, Central South University, Changsha 410013, China
- Furong Laboratory, Changsha 410008, China
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2
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Pei Z, Chang L, Bai F, Harrison RJ. Micromagnetic calculation of the magnetite magnetosomal morphology control of magnetism in magnetotactic bacteria. J R Soc Interface 2023; 20:20230297. [PMID: 37751873 PMCID: PMC10522410 DOI: 10.1098/rsif.2023.0297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 08/31/2023] [Indexed: 09/28/2023] Open
Abstract
Magnetotactic bacteria (MTB), which precisely bio-synthesize magnetosomes of magnetite or greigite nanoparticles, have attracted broad interdisciplinary interests in microbiology, magnetic materials, biotechnology and geobiology. Previous experimental and numerical investigations demonstrate a close link among MTB species, magnetosome crystal habits, and magnetic characteristics, but quantitative constraints are currently lacking. In this study, we build three-dimensional finite-element micromagnetic models of intact magnetosome chains in common MTB species and corresponding collapsed chains. Realistic numerical microstructures were constructed for the three typical biogenic magnetite crystal forms-cuboctahedron, prism and bullet. Our calculations reveal characteristic magnetic properties associated with specific magnetite crystal forms and MTB species. Cuboctahedron and bullet crystals show distinct low coercivity (less than 30 mT) and high coercivity (greater than 50 mT) clusters, respectively. Prismatic crystals have a broad range of hysteresis parameters that are strongly controlled by chain structure. This magnetic property clustering, combined with magnetic unmixing methods and electron microscopy observations, can fingerprint biogenic magnetite components in geological and environmental samples. The passive magnetic orientation efficiency of various magnetosome chains was calculated. Some bullet-shaped magnetosome chains have higher magnetic moments than those with cuboctahedron and prism magnetosomes, which may enable larger MTB cells to overcome viscous resistance for efficient magnetic navigation.
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Affiliation(s)
- Zhaowen Pei
- Laboratory of Orogenic Belts and Crustal Evolution, School of Earth and Space Sciences, Peking University, Beijing 100871, People's Republic of China
| | - Liao Chang
- Laboratory of Orogenic Belts and Crustal Evolution, School of Earth and Space Sciences, Peking University, Beijing 100871, People's Republic of China
- Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, People's Republic of China
| | - Fan Bai
- Laboratory of Orogenic Belts and Crustal Evolution, School of Earth and Space Sciences, Peking University, Beijing 100871, People's Republic of China
| | - Richard J. Harrison
- Department of Earth Sciences, University of Cambridge, Cambridge, CB2 3EQ, UK
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3
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Amor M, Mosselmans JFW, Scoppola E, Li C, Faivre D, Chevrier DM. Crystal-Chemical and Biological Controls of Elemental Incorporation into Magnetite Nanocrystals. ACS NANO 2023; 17:927-939. [PMID: 36595434 DOI: 10.1021/acsnano.2c05469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Magnetite nanoparticles possess numerous fundamental, biomedical, and industrial applications, many of which depend on tuning the magnetic properties. This is often achieved by the incorporation of trace and minor elements into the magnetite lattice. Such incorporation was shown to depend strongly on the magnetite formation pathway (i.e., abiotic vs biological), but the mechanisms controlling element partitioning between magnetite and its surrounding precipitation solution remain to be elucidated. Here, we used a combination of theoretical modeling (lattice and crystal field theories) and experimental evidence (high-resolution inductively coupled plasma-mass spectrometry and X-ray absorption spectroscopy) to demonstrate that element incorporation into abiotic magnetite nanoparticles is controlled principally by cation size and valence. Elements from the first series of transition metals (Cr to Zn) constituted exceptions to this finding, as their incorporation appeared to be also controlled by the energy levels of their unfilled 3d orbitals, in line with crystal field mechanisms. We finally show that element incorporation into biological magnetite nanoparticles produced by magnetotactic bacteria (MTB) cannot be explained by crystal-chemical parameters alone, which points to the biological control exerted by the bacteria over the element transfer between the MTB growth medium and the intracellular environment. This screening effect generates biological magnetite with a purer chemical composition in comparison to the abiotic materials formed in a solution of similar composition. Our work establishes a theoretical framework for understanding the crystal-chemical and biological controls of trace and minor cation incorporation into magnetite, thereby providing predictive methods to tailor the composition of magnetite nanoparticles for improved control over magnetic properties.
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Affiliation(s)
- Matthieu Amor
- Aix-Marseille Université, CEA, CNRS, BIAM, 13108Saint-Paul-lez-Durance, France
| | | | - Ernesto Scoppola
- Biomaterials, Hierarchical Structure of Biological and Bio-inspired Materials, Max Planck Institute of Colloids and Interfaces, Potsdam14476, Germany
| | - Chenghao Li
- Biomaterials, Hierarchical Structure of Biological and Bio-inspired Materials, Max Planck Institute of Colloids and Interfaces, Potsdam14476, Germany
| | - Damien Faivre
- Aix-Marseille Université, CEA, CNRS, BIAM, 13108Saint-Paul-lez-Durance, France
| | - Daniel M Chevrier
- Aix-Marseille Université, CEA, CNRS, BIAM, 13108Saint-Paul-lez-Durance, France
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4
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Ma K, Xu S, Tao T, Qian J, Cui Q, Rehman SU, Zhu X, Chen R, Zhao H, Wang C, Qi Z, Dai H, Zhang X, Xie C, Lu Y, Wang H, Wang J. Magnetosome-inspired synthesis of soft ferrimagnetic nanoparticles for magnetic tumor targeting. Proc Natl Acad Sci U S A 2022; 119:e2211228119. [PMID: 36322742 PMCID: PMC9659412 DOI: 10.1073/pnas.2211228119] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Accepted: 10/05/2022] [Indexed: 07/25/2023] Open
Abstract
Magnetic targeting is one of the most promising approaches for improving the targeting efficiency by which magnetic drug carriers are directed using external magnetic fields to reach their targets. As a natural magnetic nanoparticle (MNP) of biological origin, the magnetosome is a special "organelle" formed by biomineralization in magnetotactic bacteria (MTB) and is essential for MTB magnetic navigation to respond to geomagnetic fields. The magnetic targeting of magnetosomes, however, can be hindered by the aggregation and precipitation of magnetosomes in water and biological fluid environments due to the strong magnetic attraction between particles. In this study, we constructed a magnetosome-like nanoreactor by introducing MTB Mms6 protein into a reverse micelle system. MNPs synthesized by thermal decomposition exhibit the same crystal morphology and magnetism (high saturation magnetization and low coercivity) as natural magnetosomes but have a smaller particle size. The DSPE-mPEG-coated magnetosome-like MNPs exhibit good monodispersion, penetrating the lesion area of a tumor mouse model to achieve magnetic enrichment by an order of magnitude more than in the control groups, demonstrating great prospects for biomedical magnetic targeting applications.
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Affiliation(s)
- Kun Ma
- High Magnetic Field Laboratory, Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, P. R. China
| | - Shuai Xu
- High Magnetic Field Laboratory, Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, P. R. China
- University of Science and Technology of China, Hefei 230036, P. R. China
- Hefei Cancer Hospital, Anhui Province Key Laboratory of Medical Physics and Technology, Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, P. R. China
| | - Tongxiang Tao
- High Magnetic Field Laboratory, Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, P. R. China
- University of Science and Technology of China, Hefei 230036, P. R. China
| | - Junchao Qian
- Hefei Cancer Hospital, Anhui Province Key Laboratory of Medical Physics and Technology, Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, P. R. China
- Department of Radiation Oncology, School of Medicine, Shandong University, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan 250117, Shandong, P. R. China
| | - Qiqi Cui
- High Magnetic Field Laboratory, Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, P. R. China
| | - Sajid ur Rehman
- High Magnetic Field Laboratory, Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, P. R. China
| | - Xiaoguang Zhu
- Key Laboratory of Materials Physics, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, P. R. China
| | - Ruiguo Chen
- High Magnetic Field Laboratory, Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, P. R. China
| | - Hongxin Zhao
- High Magnetic Field Laboratory, Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, P. R. China
| | - Changhao Wang
- High Magnetic Field Laboratory, Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, P. R. China
- University of Science and Technology of China, Hefei 230036, P. R. China
| | - Ziping Qi
- Hefei Cancer Hospital, Anhui Province Key Laboratory of Medical Physics and Technology, Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, P. R. China
| | - Han Dai
- High Magnetic Field Laboratory, Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, P. R. China
| | - Xin Zhang
- High Magnetic Field Laboratory, Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, P. R. China
- University of Science and Technology of China, Hefei 230036, P. R. China
- Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, P. R. China
| | - Can Xie
- High Magnetic Field Laboratory, Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, P. R. China
- University of Science and Technology of China, Hefei 230036, P. R. China
- Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, P. R. China
| | - Yang Lu
- School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, P. R. China
| | - Hongzhi Wang
- Hefei Cancer Hospital, Anhui Province Key Laboratory of Medical Physics and Technology, Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, P. R. China
| | - Junfeng Wang
- High Magnetic Field Laboratory, Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, P. R. China
- University of Science and Technology of China, Hefei 230036, P. R. China
- Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, P. R. China
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5
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Feggeler T, Meckenstock R, Spoddig D, Schöppner C, Zingsem B, Schaffers T, Ohldag H, Wende H, Farle M, Ney A, Ollefs K. Element-specific visualization of dynamic magnetic coupling in a Co/Py bilayer microstructure. Sci Rep 2022; 12:18724. [PMID: 36333578 PMCID: PMC9636384 DOI: 10.1038/s41598-022-23273-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Accepted: 10/27/2022] [Indexed: 11/06/2022] Open
Abstract
We present the element-specific and time resolved visualization of uniform ferromagnetic resonance excitations of a Permalloy (Py) disk–Cobalt (Co) stripe bilayer microstructure. The transverse high frequency component of the resonantly excited magnetization is sampled in the ps regime by a combination of ferromagnetic resonance (FMR) and scanning transmission X-ray microscopy (STXM-FMR) recording snapshots of the local magnetization precession of Py and Co with nanometer spatial resolution. The approach allows us to individually image the resonant dynamic response of each element, and we find that angular momentum is transferred from the Py disk to the Co stripe and vice versa at their respective resonances. The integral (cavity) FMR spectrum of our sample shows an unexpected additional third resonance. This resonance is observed in the STXM-FMR experiments as well. Our microscopic findings suggest that it is governed by magnetic exchange between Py and Co, showing for the Co stripe a difference in relative phase of the magnetization due to stray field influence.
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6
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Muscas G, Congiu F, Concas G, Cannas C, Mameli V, Yaacoub N, Hassan RS, Fiorani D, Slimani S, Peddis D. The Boundary Between Volume and Surface-Driven Magnetic Properties in Spinel Iron Oxide Nanoparticles. NANOSCALE RESEARCH LETTERS 2022; 17:98. [PMID: 36219264 PMCID: PMC9554062 DOI: 10.1186/s11671-022-03737-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Accepted: 10/02/2022] [Indexed: 06/16/2023]
Abstract
Despite modern preparation techniques offer the opportunity to tailor the composition, size, and shape of magnetic nanoparticles, understanding and hence controlling the magnetic properties of such entities remains a challenging task, due to the complex interplay between the volume-related properties and the phenomena occurring at the particle's surface. The present work investigates spinel iron oxide nanoparticles as a model system to quantitatively analyze the crossover between the bulk and the surface-dominated magnetic regimes. The magnetic properties of ensembles of nanoparticles with an average size in the range of 5-13 nm are compared. The role of surface anisotropy and the effect of oleic acid, one of the most common and versatile organic coatings, are discussed. The structural and morphological properties are investigated by X-ray diffraction and transmission electron microscopy. The size dependence of the surface contribution to the effective particle anisotropy and the magnetic structure are analyzed by magnetization measurements and in-field Mössbauer spectrometry. The structural data combined with magnetometry and Mössbauer spectrometry analysis are used to shed light on this complex scenario revealing a crossover between volume and surface-driven properties in the range of 5-7 nm.
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Affiliation(s)
- Giuseppe Muscas
- Department of Physics, University of Cagliari, Cittadella Universitaria Di Monserrato, S.P. 8 Km 0.700, 09042, Monserrato, CA, Italy.
| | - Francesco Congiu
- Department of Physics, University of Cagliari, Cittadella Universitaria Di Monserrato, S.P. 8 Km 0.700, 09042, Monserrato, CA, Italy
| | - Giorgio Concas
- Department of Physics, University of Cagliari, Cittadella Universitaria Di Monserrato, S.P. 8 Km 0.700, 09042, Monserrato, CA, Italy
| | - Carla Cannas
- Università Degli Studi Di Cagliari, Dipartimento Di Scienze Chimiche E Geologiche, and INSTM, Cittadella Universitaria Di Monserrato, S.P. 8 Km 0.700, 09042, Monserrato, CA, Italy
| | - Valentina Mameli
- Università Degli Studi Di Cagliari, Dipartimento Di Scienze Chimiche E Geologiche, and INSTM, Cittadella Universitaria Di Monserrato, S.P. 8 Km 0.700, 09042, Monserrato, CA, Italy
| | - Nader Yaacoub
- IMMM, Le Mans Université, CNRS UMR-6283, Avenue Olivier Messiaen, 72085, Le Mans, France
| | - Rodaina Sayed Hassan
- IMMM, Le Mans Université, CNRS UMR-6283, Avenue Olivier Messiaen, 72085, Le Mans, France
- Department of Physics, Faculty of Science, Lebanese University, Beirut, Lebanon
| | - Dino Fiorani
- Istituto Di Struttura Della Materia-CNR, 00015, Monterotondo Scalo, RM, Italy
| | - Sawssen Slimani
- Dipartimento Di Chimica E Chimica Industriale, Università Degli Studi Di Genova, Via Dodecaneso 31, 1-16146, Genoa, Italy
- Istituto Di Struttura Della Materia-CNR, 00015, Monterotondo Scalo, RM, Italy
| | - Davide Peddis
- Dipartimento Di Chimica E Chimica Industriale, Università Degli Studi Di Genova, Via Dodecaneso 31, 1-16146, Genoa, Italy.
- Istituto Di Struttura Della Materia-CNR, 00015, Monterotondo Scalo, RM, Italy.
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7
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Welleweerd MK, Hageman T, Pichel M, van As D, Keizer H, Hendrix J, Micheal MM, Khalil ISM, Mir A, Korkmaz N, Kräwinkel R, Chevrier DM, Faivre D, Fernandez-Castane A, Pfeiffer D, Abelmann L. An open-source automated magnetic optical density meter for analysis of suspensions of magnetic cells and particles. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2022; 93:094101. [PMID: 36182516 DOI: 10.1063/5.0098008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Accepted: 08/17/2022] [Indexed: 06/16/2023]
Abstract
We present a spectrophotometer (optical density meter) combined with electromagnets dedicated to the analysis of suspensions of magnetotactic bacteria. The instrument can also be applied to suspensions of other magnetic cells and magnetic particles. We have ensured that our system, called MagOD, can be easily reproduced by providing the source of the 3D prints for the housing, electronic designs, circuit board layouts, and microcontroller software. We compare the performance of our system to existing adapted commercial spectrophotometers. In addition, we demonstrate its use by analyzing the absorbance of magnetotactic bacteria as a function of their orientation with respect to the light path and their speed of reorientation after the field has been rotated by 90°. We continuously monitored the development of a culture of magnetotactic bacteria over a period of 5 days and measured the development of their velocity distribution over a period of one hour. Even though this dedicated spectrophotometer is relatively simple to construct and cost-effective, a range of magnetic field-dependent parameters can be extracted from suspensions of magnetotactic bacteria. Therefore, this instrument will help the magnetotactic research community to understand and apply this intriguing micro-organism.
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Affiliation(s)
- Marcel K Welleweerd
- University of Twente, EWI/Robotics and Mechatronics, P.O. Box 217, 7500 AE Enschede, The Netherlands
| | - Tijmen Hageman
- University of Twente, EWI/Robotics and Mechatronics, P.O. Box 217, 7500 AE Enschede, The Netherlands
| | - Marc Pichel
- University of Twente, EWI/Robotics and Mechatronics, P.O. Box 217, 7500 AE Enschede, The Netherlands
| | - Dave van As
- University of Twente, EWI/Robotics and Mechatronics, P.O. Box 217, 7500 AE Enschede, The Netherlands
| | - Hans Keizer
- University of Twente, EWI/Robotics and Mechatronics, P.O. Box 217, 7500 AE Enschede, The Netherlands
| | - Jordi Hendrix
- University of Twente, EWI/Robotics and Mechatronics, P.O. Box 217, 7500 AE Enschede, The Netherlands
| | - Mina M Micheal
- University of Twente, EWI/Robotics and Mechatronics, P.O. Box 217, 7500 AE Enschede, The Netherlands
| | - Islam S M Khalil
- University of Twente, EWI/Robotics and Mechatronics, P.O. Box 217, 7500 AE Enschede, The Netherlands
| | - Alveena Mir
- KIST Europe, Biosensors Group, Campus E7, 66123 Saarbrücken, Germany
| | - Nuriye Korkmaz
- KIST Europe, Biosensors Group, Campus E7, 66123 Saarbrücken, Germany
| | - Robbert Kräwinkel
- University of Twente, EWI/Robotics and Mechatronics, P.O. Box 217, 7500 AE Enschede, The Netherlands
| | - Daniel M Chevrier
- Aix-Marseille Université, CEA, CNRS, BIAM, UMR7265, 13108 Saint-Paul lez Durance, France
| | - Damien Faivre
- Aix-Marseille Université, CEA, CNRS, BIAM, UMR7265, 13108 Saint-Paul lez Durance, France
| | | | - Daniel Pfeiffer
- Lehrstuhl für Mikrobiologie, Universität Bayreuth, Universitätsstrasse 30, 95447 Bayreuth, Germany
| | - Leon Abelmann
- University of Twente, EWI/Robotics and Mechatronics, P.O. Box 217, 7500 AE Enschede, The Netherlands
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8
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Weßels T, Däster S, Murooka Y, Zingsem B, Migunov V, Kruth M, Finizio S, Lu PH, Kovács A, Oelsner A, Müller-Caspary K, Acremann Y, Dunin-Borkowski RE. Continuous illumination picosecond imaging using a delay line detector in a transmission electron microscope. Ultramicroscopy 2022; 233:113392. [PMID: 35016129 DOI: 10.1016/j.ultramic.2021.113392] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 09/04/2021] [Accepted: 09/09/2021] [Indexed: 11/28/2022]
Abstract
Progress towards analysing transitions between steady states demands improvements in time-resolved imaging, both for fundamental research and for applications in information technology. Transmission electron microscopy is a powerful technique for investigating the atomic structure, chemical composition and electromagnetic properties of materials with high spatial resolution and precision. However, the extraction of information about dynamic processes in the ps time regime is often not possible without extensive modification to the instrument while requiring careful control of the operation conditions to not compromise the beam quality. Here, we avoid these drawbacks by combining a delay line detector with continuous illumination in a transmission electron microscope. We visualize the gyration of a magnetic vortex core in real space and show that magnetization dynamics up to frequencies of 2.3 GHz can be resolved with down to ∼122ps temporal resolution by studying the interaction of an electron beam with a microwave magnetic field. In the future, this approach promises to provide access to resonant dynamics by combining high spatial resolution with sub-ns temporal resolution.
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Affiliation(s)
- Teresa Weßels
- Ernst Ruska-Centre for Microscopy and Spectroscopy with Electrons and Peter Grünberg Institute, Forschungszentrum Jülich, 52425 Jülich, Germany; Lehrstuhl für Experimentalphysik IV E, RWTH Aachen University, 52056 Aachen, Germany.
| | - Simon Däster
- Laboratory for Solid State Physics, ETH Zurich, 8093 Zurich, Switzerland
| | - Yoshie Murooka
- Ernst Ruska-Centre for Microscopy and Spectroscopy with Electrons and Peter Grünberg Institute, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - Benjamin Zingsem
- Faculty of Physics and Center for Nanointegration (CENIDE), University of Duisburg-Essen, 47057 Duisburg, Germany
| | - Vadim Migunov
- Ernst Ruska-Centre for Microscopy and Spectroscopy with Electrons and Peter Grünberg Institute, Forschungszentrum Jülich, 52425 Jülich, Germany; Central Facility for Electron Microscopy (GFE), RWTH Aachen University, 52074 Aachen, Germany
| | - Maximilian Kruth
- Ernst Ruska-Centre for Microscopy and Spectroscopy with Electrons and Peter Grünberg Institute, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - Simone Finizio
- Swiss Light Source, Paul Scherrer Institut, 5232 Villigen PSI, Switzerland
| | - Peng-Han Lu
- Ernst Ruska-Centre for Microscopy and Spectroscopy with Electrons and Peter Grünberg Institute, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - András Kovács
- Ernst Ruska-Centre for Microscopy and Spectroscopy with Electrons and Peter Grünberg Institute, Forschungszentrum Jülich, 52425 Jülich, Germany
| | | | - Knut Müller-Caspary
- Ernst Ruska-Centre for Microscopy and Spectroscopy with Electrons and Peter Grünberg Institute, Forschungszentrum Jülich, 52425 Jülich, Germany; Department of Chemistry, Ludwig-Maximilians-Universität München, Butenandtstrasse 5-13, 81377 Munich, Germany
| | - Yves Acremann
- Laboratory for Solid State Physics, ETH Zurich, 8093 Zurich, Switzerland
| | - Rafal E Dunin-Borkowski
- Ernst Ruska-Centre for Microscopy and Spectroscopy with Electrons and Peter Grünberg Institute, Forschungszentrum Jülich, 52425 Jülich, Germany
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9
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Honecker D, Bersweiler M, Erokhin S, Berkov D, Chesnel K, Venero DA, Qdemat A, Disch S, Jochum JK, Michels A, Bender P. Using small-angle scattering to guide functional magnetic nanoparticle design. NANOSCALE ADVANCES 2022; 4:1026-1059. [PMID: 36131777 PMCID: PMC9417585 DOI: 10.1039/d1na00482d] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Accepted: 01/15/2022] [Indexed: 05/14/2023]
Abstract
Magnetic nanoparticles offer unique potential for various technological, biomedical, or environmental applications thanks to the size-, shape- and material-dependent tunability of their magnetic properties. To optimize particles for a specific application, it is crucial to interrelate their performance with their structural and magnetic properties. This review presents the advantages of small-angle X-ray and neutron scattering techniques for achieving a detailed multiscale characterization of magnetic nanoparticles and their ensembles in a mesoscopic size range from 1 to a few hundred nanometers with nanometer resolution. Both X-rays and neutrons allow the ensemble-averaged determination of structural properties, such as particle morphology or particle arrangement in multilayers and 3D assemblies. Additionally, the magnetic scattering contributions enable retrieving the internal magnetization profile of the nanoparticles as well as the inter-particle moment correlations caused by interactions within dense assemblies. Most measurements are used to determine the time-averaged ensemble properties, in addition advanced small-angle scattering techniques exist that allow accessing particle and spin dynamics on various timescales. In this review, we focus on conventional small-angle X-ray and neutron scattering (SAXS and SANS), X-ray and neutron reflectometry, gracing-incidence SAXS and SANS, X-ray resonant magnetic scattering, and neutron spin-echo spectroscopy techniques. For each technique, we provide a general overview, present the latest scientific results, and discuss its strengths as well as sample requirements. Finally, we give our perspectives on how future small-angle scattering experiments, especially in combination with micromagnetic simulations, could help to optimize the performance of magnetic nanoparticles for specific applications.
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Affiliation(s)
- Dirk Honecker
- ISIS Neutron and Muon Facility, Rutherford Appleton Laboratory Didcot OX11 0QX UK
| | - Mathias Bersweiler
- Department of Physics and Materials Science, University of Luxembourg 162A Avenue de La Faïencerie L-1511 Luxembourg Grand Duchy of Luxembourg
| | - Sergey Erokhin
- General Numerics Research Lab Moritz-von-Rohr-Straße 1A D-07745 Jena Germany
| | - Dmitry Berkov
- General Numerics Research Lab Moritz-von-Rohr-Straße 1A D-07745 Jena Germany
| | - Karine Chesnel
- Brigham Young University, Department of Physics and Astronomy Provo Utah 84602 USA
| | - Diego Alba Venero
- ISIS Neutron and Muon Facility, Rutherford Appleton Laboratory Didcot OX11 0QX UK
| | - Asma Qdemat
- Universität zu Köln, Department für Chemie Luxemburger Straße 116 D-50939 Köln Germany
| | - Sabrina Disch
- Universität zu Köln, Department für Chemie Luxemburger Straße 116 D-50939 Köln Germany
| | - Johanna K Jochum
- Heinz Maier-Leibnitz Zentrum (MLZ), Technische Universität München Lichtenbergstraße 1 85748 Garching Germany
| | - Andreas Michels
- Department of Physics and Materials Science, University of Luxembourg 162A Avenue de La Faïencerie L-1511 Luxembourg Grand Duchy of Luxembourg
| | - Philipp Bender
- Heinz Maier-Leibnitz Zentrum (MLZ), Technische Universität München Lichtenbergstraße 1 85748 Garching Germany
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10
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Gorobets S, Gorobets O, Gorobets Y, Bulaievska M. Chain-Like Structures of Biogenic and Nonbiogenic Magnetic Nanoparticles in Vascular Tissues. Bioelectromagnetics 2022; 43:119-143. [PMID: 35077582 DOI: 10.1002/bem.22390] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 12/11/2021] [Accepted: 01/08/2022] [Indexed: 12/29/2022]
Abstract
In this paper, slices of organs from various organisms (animals, plants, fungi) were investigated by using atomic force microscopy and magnetic force microscopy to identify common features of localization of both biogenic and nonbiogenic magnetic nanoparticles. It was revealed that both biogenic and nonbiogenic magnetic nanoparticles are localized in the form of chains of separate nanoparticles or chains of conglomerates of nanoparticles in the walls of the capillaries of animals and the walls of the conducting tissue of plants and fungi. Both biogenic and nonbiogenic magnetic nanoparticles are embedded as a part of the transport system in multicellular organisms. In connection with this, a new idea of the function of biogenic magnetic nanoparticles is discussed, that the chains of biogenic magnetic nanoparticles and chains of conglomerates of biogenic magnetic nanoparticles represent ferrimagnetic organelles of a specific purpose. Besides, magnetic dipole-dipole interaction of biogenic magnetic nanoparticles with magnetically labeled drugs or contrast agents for magnetic resonance imaging should be considered when designing the drug delivery and other medical systems because biogenic magnetic nanoparticles in capillary walls will serve as the trapping centers for the artificial magnetic nanoparticles. The aggregates of both artificial and biogenic magnetic nanoparticles can be formed, contributing to the risk of vascular occlusion. Bioelectromagnetics. 43:119-143, 2022. © 2021 Bioelectromagnetics Society.
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Affiliation(s)
- Svitlana Gorobets
- National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute", Kyiv, Ukraine
| | - Oksana Gorobets
- National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute", Kyiv, Ukraine.,Institute of Magnetism NAS of Ukraine and MES of Ukraine, Kyiv, Ukraine
| | - Yuri Gorobets
- National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute", Kyiv, Ukraine.,Institute of Magnetism NAS of Ukraine and MES of Ukraine, Kyiv, Ukraine
| | - Maryna Bulaievska
- National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute", Kyiv, Ukraine
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11
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Rana B, Mondal AK, Bandyopadhyay S, Barman A. Applications of nanomagnets as dynamical systems: I. NANOTECHNOLOGY 2021; 33:062007. [PMID: 34633310 DOI: 10.1088/1361-6528/ac2e75] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Accepted: 10/11/2021] [Indexed: 06/13/2023]
Abstract
When magnets are fashioned into nanoscale elements, they exhibit a wide variety of phenomena replete with rich physics and the lure of tantalizing applications. In this topical review, we discuss some of these phenomena, especially those that have come to light recently, and highlight their potential applications. We emphasize what drives a phenomenon, what undergirds the dynamics of the system that exhibits the phenomenon, how the dynamics can be manipulated, and what specific features can be harnessed for technological advances. For the sake of balance, we point out both advantages and shortcomings of nanomagnet based devices and systems predicated on the phenomena we discuss. Where possible, we chart out paths for future investigations that can shed new light on an intriguing phenomenon and/or facilitate both traditional and non-traditional applications.
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Affiliation(s)
- Bivas Rana
- Institute of Spintronics and Quantum Information, Faculty of Physics, Adam Mickiewicz University in Poznań, Uniwersytetu Poznanskiego 2, Poznań 61-614, Poland
- Center for Emergent Matter Science, RIKEN, 2-1 Hirosawa, Wako 351-0198, Japan
| | - Amrit Kumar Mondal
- Department of Condensed Matter Physics and Material Sciences, S. N. Bose National Centre for Basic Sciences, Block JD, Sector III, Salt Lake, Kolkata 700 106, India
| | - Supriyo Bandyopadhyay
- Department of Electrical and Computer Engineering, Virginia Commonwealth University, Richmond, VA, 23284, United States of America
| | - Anjan Barman
- Department of Condensed Matter Physics and Material Sciences, S. N. Bose National Centre for Basic Sciences, Block JD, Sector III, Salt Lake, Kolkata 700 106, India
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12
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Barman A, Gubbiotti G, Ladak S, Adeyeye AO, Krawczyk M, Gräfe J, Adelmann C, Cotofana S, Naeemi A, Vasyuchka VI, Hillebrands B, Nikitov SA, Yu H, Grundler D, Sadovnikov AV, Grachev AA, Sheshukova SE, Duquesne JY, Marangolo M, Csaba G, Porod W, Demidov VE, Urazhdin S, Demokritov SO, Albisetti E, Petti D, Bertacco R, Schultheiss H, Kruglyak VV, Poimanov VD, Sahoo S, Sinha J, Yang H, Münzenberg M, Moriyama T, Mizukami S, Landeros P, Gallardo RA, Carlotti G, Kim JV, Stamps RL, Camley RE, Rana B, Otani Y, Yu W, Yu T, Bauer GEW, Back C, Uhrig GS, Dobrovolskiy OV, Budinska B, Qin H, van Dijken S, Chumak AV, Khitun A, Nikonov DE, Young IA, Zingsem BW, Winklhofer M. The 2021 Magnonics Roadmap. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2021; 33:413001. [PMID: 33662946 DOI: 10.1088/1361-648x/abec1a] [Citation(s) in RCA: 68] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Accepted: 03/04/2021] [Indexed: 05/26/2023]
Abstract
Magnonics is a budding research field in nanomagnetism and nanoscience that addresses the use of spin waves (magnons) to transmit, store, and process information. The rapid advancements of this field during last one decade in terms of upsurge in research papers, review articles, citations, proposals of devices as well as introduction of new sub-topics prompted us to present the first roadmap on magnonics. This is a collection of 22 sections written by leading experts in this field who review and discuss the current status besides presenting their vision of future perspectives. Today, the principal challenges in applied magnonics are the excitation of sub-100 nm wavelength magnons, their manipulation on the nanoscale and the creation of sub-micrometre devices using low-Gilbert damping magnetic materials and its interconnections to standard electronics. To this end, magnonics offers lower energy consumption, easier integrability and compatibility with CMOS structure, reprogrammability, shorter wavelength, smaller device features, anisotropic properties, negative group velocity, non-reciprocity and efficient tunability by various external stimuli to name a few. Hence, despite being a young research field, magnonics has come a long way since its early inception. This roadmap asserts a milestone for future emerging research directions in magnonics, and hopefully, it will inspire a series of exciting new articles on the same topic in the coming years.
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Affiliation(s)
- Anjan Barman
- Department of Condensed Matter Physics and Material Sciences, S N Bose National Centre for Basic Sciences, Salt Lake, Kolkata 700106, India
| | - Gianluca Gubbiotti
- Istituto Officina dei Materiali del Consiglio nazionale delle Ricerche (IOM-CNR), Perugia, Italy
| | - S Ladak
- School of Physics and Astronomy, Cardiff University, United Kingdom
| | - A O Adeyeye
- Department of Physics, University of Durham, United Kingdom
| | - M Krawczyk
- Adam Mickiewicz University, Poznan, Poland
| | - J Gräfe
- Max Planck Institute for Intelligent Systems, Stuttgart, Germany
| | | | - S Cotofana
- Delft University of Technology, The Netherlands
| | - A Naeemi
- Georgia Institute of Technology, United States of America
| | - V I Vasyuchka
- Department of Physics and State Research Center OPTIMAS, Technische Universität Kaiserslautern (TUK), Kaiserslautern, Germany
| | - B Hillebrands
- Department of Physics and State Research Center OPTIMAS, Technische Universität Kaiserslautern (TUK), Kaiserslautern, Germany
| | - S A Nikitov
- Kotelnikov Institute of Radioengineering and Electronics, Moscow, Russia
| | - H Yu
- Fert Beijing Institute, BDBC, School of Microelectronics, Beijing Advanced Innovation Center for Big Data and Brian Computing, Beihang University, People's Republic of China
| | - D Grundler
- Laboratory of Nanoscale Magnetic Materials and Magnonics, Institute of Materials (IMX), Institute of Electrical and Micro Engineering, School of Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Switzerland
| | - A V Sadovnikov
- Kotelnikov Institute of Radioengineering and Electronics, Moscow, Russia
- Laboratory 'Magnetic Metamaterials', Saratov State University, Saratov, Russia
| | - A A Grachev
- Kotelnikov Institute of Radioengineering and Electronics, Moscow, Russia
- Laboratory 'Magnetic Metamaterials', Saratov State University, Saratov, Russia
| | - S E Sheshukova
- Kotelnikov Institute of Radioengineering and Electronics, Moscow, Russia
- Laboratory 'Magnetic Metamaterials', Saratov State University, Saratov, Russia
| | - J-Y Duquesne
- Institut des NanoSciences de Paris, Sorbonne University, CNRS, Paris, France
| | - M Marangolo
- Institut des NanoSciences de Paris, Sorbonne University, CNRS, Paris, France
| | - G Csaba
- Pázmány University, Budapest, Hungary
| | - W Porod
- University of Notre Dame, IN, United States of America
| | - V E Demidov
- Institute for Applied Physics, University of Muenster, Muenster, Germany
| | - S Urazhdin
- Department of Physics, Emory University, Atlanta, United States of America
| | - S O Demokritov
- Institute for Applied Physics, University of Muenster, Muenster, Germany
| | | | - D Petti
- Polytechnic University of Milan, Italy
| | | | - H Schultheiss
- Helmholtz-Center Dresden-Rossendorf, Institute of Ion Beam Physics and Materials Research, Germany
- Technische Universität Dresden, Germany
| | | | | | - S Sahoo
- Department of Condensed Matter Physics and Material Sciences, S N Bose National Centre for Basic Sciences, Salt Lake, Kolkata 700106, India
| | - J Sinha
- Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, India
| | - H Yang
- Department of Electrical and Computer Engineering, National University of Singapore, Singapore
| | - M Münzenberg
- Institute of Physics, University of Greifswald, Greifswald, Germany
| | - T Moriyama
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto, Japan
- Centre for Spintronics Research Network, Japan
| | - S Mizukami
- Centre for Spintronics Research Network, Japan
- Advanced Institute for Materials Research (WPI-AIMR), Tohoku University, Sendai, Japan
| | - P Landeros
- Departamento de Física, Universidad Técnica Federico Santa María, Valparaíso, Chile
- Center for the Development of Nanoscience and Nanotechnology (CEDENNA), Santiago, Chile
| | - R A Gallardo
- Departamento de Física, Universidad Técnica Federico Santa María, Valparaíso, Chile
- Center for the Development of Nanoscience and Nanotechnology (CEDENNA), Santiago, Chile
| | - G Carlotti
- Dipartimento di Fisica e Geologia, University of Perugia, Perugia, Italy
- CNR Instituto Nanoscienze, Modena, Italy
| | - J-V Kim
- Centre for Nanosciences and Nanotechnology, CNRS, Université Paris-Saclay, Palaiseau, France
| | - R L Stamps
- Department of Physics and Astronomy, University of Manitoba, Canada
| | - R E Camley
- Center for Magnetism and Magnetic Nanostructures, University of Colorado, Colorado Springs, United States of America
| | | | - Y Otani
- RIKEN, Japan
- Institute for Solid State Physics (ISSP), University of Tokyo, Japan
| | - W Yu
- Institute for Materials Research, Tohoku University, Sendai, 980-8577, Japan
| | - T Yu
- Max Planck Institute for the Structure and Dynamics of Matter, Hamburg, Germany
| | - G E W Bauer
- Advanced Institute for Materials Research (WPI-AIMR), Tohoku University, Sendai, Japan
- Zernike Institute for Advanced Materials, Groningen University, The Netherlands
| | - C Back
- Technical University Munich, Germany
| | - G S Uhrig
- Technical University Dortmund, Germany
| | | | - B Budinska
- Faculty of Physics, University of Vienna, Vienna, Austria
| | - H Qin
- Department of Applied Physics, School of Science, Aalto University, Finland
| | - S van Dijken
- Department of Applied Physics, School of Science, Aalto University, Finland
| | - A V Chumak
- Faculty of Physics, University of Vienna, Vienna, Austria
| | - A Khitun
- University of California Riverside, United States of America
| | - D E Nikonov
- Components Research, Intel, Hillsboro, Oregon, United States of America
| | - I A Young
- Components Research, Intel, Hillsboro, Oregon, United States of America
| | - B W Zingsem
- The University of Duisburg-Essen, CENIDE, Germany
| | - M Winklhofer
- The Carl von Ossietzky University of Oldenburg, Germany
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13
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Challab N, Faurie D, Haboussi M, Adeyeye AO, Zighem F. Differentiated Strain-Control of Localized Magnetic Modes in Antidot Arrays. ACS APPLIED MATERIALS & INTERFACES 2021; 13:29906-29915. [PMID: 34152735 DOI: 10.1021/acsami.1c05582] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The control of localized magnetic modes has been obtained in Ni60Fe40 square lattice (600 nm) antidot arrays. This has been performed by tailoring the magnetoelastic field at the scale of the antidot primitive cell. The corresponding heterogeneous strain field distributions have been generated by a PZT substrate and enhanced by the incorporation of a supporting compliant layer. It has been highlighted by a differentiated variation of magnetic energy directly due to the local magnetoelastic field felt by each magnetic mode, probed by ferromagnetic resonance spectroscopy. A modeling, involving micromagnetic simulations (to locate the magnetic modes), full-field simulations (to evaluate the strain field distributions), and an analytical model generally dedicated to continuous film that we have extended to those magnetic modes, shows a good agreement with the experimental data. This approach is very promising to develop multichannel systems with simultaneous and differentiated controlled frequencies in magnetic devices.
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Affiliation(s)
- Nabil Challab
- Universite Sorbonne Paris Nord, LSPM-CNRS UPR3407, Villetaneuse 93430, France
| | - Damien Faurie
- Universite Sorbonne Paris Nord, LSPM-CNRS UPR3407, Villetaneuse 93430, France
| | - Mohamed Haboussi
- Universite Sorbonne Paris Nord, LSPM-CNRS UPR3407, Villetaneuse 93430, France
| | - Adekunle O Adeyeye
- Information Storage Materials Laboratory Department of Electrical and Computer Engineering, National University of Singapore, Singapore 117576, Singapore
- Department of Physics, Durham University, South Road, Durham DH1 3LE, United Kingdom
| | - Fatih Zighem
- Universite Sorbonne Paris Nord, LSPM-CNRS UPR3407, Villetaneuse 93430, France
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14
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Myrovali E, Papadopoulos K, Iglesias I, Spasova M, Farle M, Wiedwald U, Angelakeris M. Long-Range Ordering Effects in Magnetic Nanoparticles. ACS APPLIED MATERIALS & INTERFACES 2021; 13:21602-21612. [PMID: 33929817 DOI: 10.1021/acsami.1c01820] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The challenge for synthesizing magnetic nanoparticle chains may be achieved under the application of fixation fields, which are the externally applied fields, enhancing collective magnetic features due to adequate control of dipolar interactions among magnetic nanoparticles. However, relatively little attention has been devoted to how size, concentration of magnetic nanoparticles, and intensity of an external magnetic field affect the evolution of chain structures and collective magnetic features. Here, iron oxide nanoparticles are developed by the coprecipitation method at diameters below (10 and 20 nm) and above (50 and 80 nm) their superparamagnetic limit (at about 25 nm) and then are subjected to a tunable fixation field (40-400 mT). Eventually, the fixation field dictates smaller particles to form chain structures in two steps, first forming clusters and then guiding chain formation via "cluster-cluster" interactions, whereas larger particles readily form chains via "particle-particle" interactions. In both cases, dipolar interactions between the neighboring nanoparticles augment, leading to a substantial increase in their collective magnetic features which in turn results in magnetic particle hyperthermia efficiency enhancement of up to one order of magnitude. This study provides new perspectives for magnetic nanoparticles by arranging them in chain formulations as enhanced performance magnetic actors in magnetically driven magnetic applications.
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Affiliation(s)
- Eirini Myrovali
- School of Physics, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
- Magnetic Nanostructure Characterization: Technology and Applications, CIRI-AUTH, Thessaloniki 57001, Greece
| | - Kyrillos Papadopoulos
- School of Physics, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
- Magnetic Nanostructure Characterization: Technology and Applications, CIRI-AUTH, Thessaloniki 57001, Greece
| | - Irene Iglesias
- Faculty of Physics and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, Duisburg 47048, Germany
| | - Marina Spasova
- Faculty of Physics and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, Duisburg 47048, Germany
| | - Michael Farle
- Faculty of Physics and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, Duisburg 47048, Germany
| | - Ulf Wiedwald
- Faculty of Physics and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, Duisburg 47048, Germany
| | - Makis Angelakeris
- School of Physics, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
- Magnetic Nanostructure Characterization: Technology and Applications, CIRI-AUTH, Thessaloniki 57001, Greece
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15
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Microresonators and Microantennas—Tools to Explore Magnetization Dynamics in Single Nanostructures. MAGNETOCHEMISTRY 2021. [DOI: 10.3390/magnetochemistry7020028] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The phenomenon of magnetic resonance and its detection via microwave spectroscopy provide insight into the magnetization dynamics of bulk or thin film materials. This allows for direct access to fundamental properties, such as the effective magnetization, g-factor, magnetic anisotropy, and the various damping (relaxation) channels that govern the decay of magnetic excitations. Cavity-based and broadband ferromagnetic resonance techniques that detect the microwave absorption of spin systems require a minimum magnetic volume to obtain a sufficient signal-to-noise ratio (S/N). Therefore, conventional techniques typically do not offer the sensitivity to detect individual micro- or nanostructures. A solution to this sensitivity problem is the so-called planar microresonator, which is able to detect even the small absorption signals of magnetic nanostructures, including spin-wave or edge resonance modes. As an example, we describe the microresonator-based detection of spin-wave modes within microscopic strips of ferromagnetic A2 Fe60Al40 that are imprinted into a paramagnetic B2 Fe60Al40-matrix via focused ion-beam irradiation. While microresonators operate at a fixed microwave frequency, a reliable quantification of the key magnetic parameters like the g-factor or spin relaxation times requires investigations within a broad range of frequencies. Furthermore, we introduce and describe the step from microresonators towards a broadband microantenna approach. Broadband magnetic resonance experiments on single nanostructured magnetic objects in a frequency range of 2–18 GHz are demonstrated. The broadband approach has been employed to explore the influence of lateral structuring on the magnetization dynamics of a Permalloy (Ni80Fe20) microstrip.
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16
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Nadarajah R, Tahir S, Landers J, Koch D, Semisalova AS, Wiemeler J, El-Zoka A, Kim SH, Utzat D, Möller R, Gault B, Wende H, Farle M, Gökce B. Controlling the Oxidation of Magnetic and Electrically Conductive Solid-Solution Iron-Rhodium Nanoparticles Synthesized by Laser Ablation in Liquids. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E2362. [PMID: 33261038 PMCID: PMC7760681 DOI: 10.3390/nano10122362] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 11/18/2020] [Accepted: 11/23/2020] [Indexed: 01/26/2023]
Abstract
This study focuses on the synthesis of FeRh nanoparticles via pulsed laser ablation in liquid and on controlling the oxidation of the synthesized nanoparticles. Formation of monomodal γ-FeRh nanoparticles was confirmed by transmission electron microscopy (TEM) and their composition confirmed by atom probe tomography (APT). For these particles, three major contributors to oxidation were analysed: (1) dissolved oxygen in the organic solvents, (2) the bound oxygen in the solvent and (3) oxygen in the atmosphere above the solvent. The decrease of oxidation for optimized ablation conditions was confirmed through energy-dispersive X-ray (EDX) and Mössbauer spectroscopy. Furthermore, the time dependence of oxidation was monitored for dried FeRh nanoparticles powders using ferromagnetic resonance spectroscopy (FMR). By magnetophoretic separation, B2-FeRh nanoparticles could be extracted from the solution and characteristic differences of nanostrand formation between γ-FeRh and B2-FeRh nanoparticles were observed.
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Affiliation(s)
- Ruksan Nadarajah
- Technical Chemistry I and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, Universitaetsstr. 7, 45141 Essen, Germany; (R.N.); (S.T.)
| | - Shabbir Tahir
- Technical Chemistry I and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, Universitaetsstr. 7, 45141 Essen, Germany; (R.N.); (S.T.)
| | - Joachim Landers
- Faculty of Physics and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, Lotharstr. 1, 47057 Duisburg, Germany; (J.L.); (A.S.S.); (J.W.); (D.U.); (R.M.); (H.W.); (M.F.)
| | - David Koch
- Institute of Materials Science, University of Technology, Alarich-Weiss-Strasse 2, 64287 Darmstadt, Germany;
| | - Anna S. Semisalova
- Faculty of Physics and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, Lotharstr. 1, 47057 Duisburg, Germany; (J.L.); (A.S.S.); (J.W.); (D.U.); (R.M.); (H.W.); (M.F.)
| | - Jonas Wiemeler
- Faculty of Physics and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, Lotharstr. 1, 47057 Duisburg, Germany; (J.L.); (A.S.S.); (J.W.); (D.U.); (R.M.); (H.W.); (M.F.)
| | - Ayman El-Zoka
- Max-Planck-Institut für Eisenforschung GmbH, Max-Planck-Strasse 1, 40237 Düsseldorf, Germany; (A.E.-Z.); (S.-H.K.); (B.G.)
| | - Se-Ho Kim
- Max-Planck-Institut für Eisenforschung GmbH, Max-Planck-Strasse 1, 40237 Düsseldorf, Germany; (A.E.-Z.); (S.-H.K.); (B.G.)
| | - Detlef Utzat
- Faculty of Physics and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, Lotharstr. 1, 47057 Duisburg, Germany; (J.L.); (A.S.S.); (J.W.); (D.U.); (R.M.); (H.W.); (M.F.)
| | - Rolf Möller
- Faculty of Physics and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, Lotharstr. 1, 47057 Duisburg, Germany; (J.L.); (A.S.S.); (J.W.); (D.U.); (R.M.); (H.W.); (M.F.)
| | - Baptiste Gault
- Max-Planck-Institut für Eisenforschung GmbH, Max-Planck-Strasse 1, 40237 Düsseldorf, Germany; (A.E.-Z.); (S.-H.K.); (B.G.)
- Department of Materials, Royal School of Mines, Imperial College London, London SW7 2AZ, UK
| | - Heiko Wende
- Faculty of Physics and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, Lotharstr. 1, 47057 Duisburg, Germany; (J.L.); (A.S.S.); (J.W.); (D.U.); (R.M.); (H.W.); (M.F.)
| | - Michael Farle
- Faculty of Physics and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, Lotharstr. 1, 47057 Duisburg, Germany; (J.L.); (A.S.S.); (J.W.); (D.U.); (R.M.); (H.W.); (M.F.)
| | - Bilal Gökce
- Technical Chemistry I and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, Universitaetsstr. 7, 45141 Essen, Germany; (R.N.); (S.T.)
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