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Ajinkya N, Yu X, Kaithal P, Luo H, Somani P, Ramakrishna S. Magnetic Iron Oxide Nanoparticle (IONP) Synthesis to Applications: Present and Future. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E4644. [PMID: 33080937 PMCID: PMC7603130 DOI: 10.3390/ma13204644] [Citation(s) in RCA: 88] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 09/17/2020] [Accepted: 09/20/2020] [Indexed: 12/18/2022]
Abstract
Iron oxides are chemical compounds which have different polymorphic forms, including γ-Fe2O3 (maghemite), Fe3O4 (magnetite), and FeO (wustite). Among them, the most studied are γ-Fe2O3 and Fe3O4, as they possess extraordinary properties at the nanoscale (such as super paramagnetism, high specific surface area, biocompatible etc.), because at this size scale, the quantum effects affect matter behavior and optical, electrical and magnetic properties. Therefore, in the nanoscale, these materials become ideal for surface functionalization and modification in various applications such as separation techniques, magnetic sorting (cells and other biomolecules etc.), drug delivery, cancer hyperthermia, sensing etc., and also for increased surface area-to-volume ratio, which allows for excellent dispersibility in the solution form. The current methods used are partially and passively mixed reactants, and, thus, every reaction has a different proportion of all factors which causes further difficulties in reproducibility. Direct active and complete mixing and automated approaches could be solutions to this size- and shape-controlled synthesis, playing a key role in its exploitation for scientific or technological purposes. An ideal synthesis method should be able to allow reliable adjustment of parameters and control over the following: fluctuation in temperature; pH, stirring rate; particle distribution; size control; concentration; and control over nanoparticle shape and composition i.e., crystallinity, purity, and rapid screening. Iron oxide nanoparticle (IONP)-based available clinical applications are RNA/DNA extraction and detection of infectious bacteria and viruses. Such technologies are important at POC (point of care) diagnosis. IONPs can play a key role in these perspectives. Although there are various methods for synthesis of IONPs, one of the most crucial goals is to control size and properties with high reproducibility to accomplish successful applications. Using multiple characterization techniques to identify and confirm the oxide phase of iron can provide better characterization capability. It is very important to understand the in-depth IONP formation mechanism, enabling better control over parameters and overall reaction and, by extension, properties of IONPs. This work provides an in-depth overview of different properties, synthesis methods, and mechanisms of iron oxide nanoparticles (IONPs) formation, and the diverse range of their applications. Different characterization factors and strategies to confirm phase purity in the IONP synthesis field are reviewed. First, properties of IONPs and various synthesis routes with their merits and demerits are described. We also describe different synthesis strategies and formation mechanisms for IONPs such as for: wustite (FeO), hematite (α-Fe2O3), maghemite (ɤ-Fe2O3) and magnetite (Fe3O4). We also describe characterization of these nanoparticles and various applications in detail. In conclusion, we present a detailed overview on the properties, size-controlled synthesis, formation mechanisms and applications of IONPs.
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Affiliation(s)
- Nene Ajinkya
- Materials and Interfaces Center, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China; (X.Y.); (H.L.)
| | - Xuefeng Yu
- Materials and Interfaces Center, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China; (X.Y.); (H.L.)
| | - Poonam Kaithal
- Department of Molecular and Cellular Engineering, Jacob Institute of Biotechnology and Bioengineering, SHUATS, Allahabad 211007, India;
| | - Hongrong Luo
- Materials and Interfaces Center, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China; (X.Y.); (H.L.)
| | - Prakash Somani
- Center for Grand Challenges and Green Technologies, Applied Science Innovations Pvt. Ltd., Pune 411041, India;
| | - Seeram Ramakrishna
- Center for Nanofibers and Nanotechnology, National University of Singapore, Singapore 117576, Singapore;
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2
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Campanini M, Erni R, Rossell MD. Probing local order in multiferroics by transmission electron microscopy. PHYSICAL SCIENCES REVIEWS 2020. [DOI: 10.1515/psr-2019-0068] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The ongoing trend toward miniaturization has led to an increased interest in the magnetoelectric effect, which could yield entirely new device concepts, such as electric field-controlled magnetic data storage. As a result, much work is being devoted to developing new robust room temperature (RT) multiferroic materials that combine ferromagnetism and ferroelectricity. However, the development of new multiferroic devices has proved unexpectedly challenging. Thus, a better understanding of the properties of multiferroic thin films and the relation with their microstructure is required to help drive multiferroic devices toward technological application. This review covers in a concise manner advanced analytical imaging methods based on (scanning) transmission electron microscopy which can potentially be used to characterize complex multiferroic materials. It consists of a first broad introduction to the topic followed by a section describing the so-called phase-contrast methods, which can be used to map the polar and magnetic order in magnetoelectric multiferroics at different spatial length scales down to atomic resolution. Section 3 is devoted to electron nanodiffraction methods. These methods allow measuring local strains, identifying crystal defects and determining crystal structures, and thus offer important possibilities for the detailed structural characterization of multiferroics in the ultrathin regime or inserted in multilayers or superlattice architectures. Thereafter, in Section 4, methods are discussed which allow for analyzing local strain, whereas in Section 5 methods are addressed which allow for measuring local polarization effects on a length scale of individual unit cells. Here, it is shown that the ferroelectric polarization can be indirectly determined from the atomic displacements measured in atomic resolution images. Finally, a brief outlook is given on newly established methods to probe the behavior of ferroelectric and magnetic domains and nanostructures during in situ heating/electrical biasing experiments. These in situ methods are just about at the launch of becoming increasingly popular, particularly in the field of magnetoelectric multiferroics, and shall contribute significantly to understanding the relationship between the domain dynamics of multiferroics and the specific microstructure of the films providing important guidance to design new devices and to predict and mitigate failures.
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Tapeinos C, Marino A, Battaglini M, Migliorin S, Brescia R, Scarpellini A, De Julián Fernández C, Prato M, Drago F, Ciofani G. Stimuli-responsive lipid-based magnetic nanovectors increase apoptosis in glioblastoma cells through synergic intracellular hyperthermia and chemotherapy. NANOSCALE 2018; 11:72-88. [PMID: 30357214 PMCID: PMC6336008 DOI: 10.1039/c8nr05520c] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Accepted: 10/01/2018] [Indexed: 05/20/2023]
Abstract
In this study, taking into consideration the limitations of current treatments of glioblastoma multiforme, we fabricated a biomimetic lipid-based magnetic nanovector with a good loading capacity and a sustained release profile of the encapsulated chemotherapeutic drug, temozolomide. These nanostructures demonstrated an enhanced release after exposure to an alternating magnetic field, and a complete release of the encapsulated drug after the synergic effect of low pH (4.5), increased concentration of hydrogen peroxide (50 μM), and increased temperature due to the applied magnetic field. In addition, these nanovectors presented excellent specific absorption rate values (up to 1345 W g-1) considering the size of the magnetic component, rendering them suitable as potential hyperthermia agents. The presented nanovectors were progressively internalized in U-87 MG cells and in their acidic compartments (i.e., lysosomes and late endosomes) without affecting the viability of the cells, and their ability to cross the blood-brain barrier was preliminarily investigated using an in vitro brain endothelial cell-model. When stimulated with alternating magnetic fields (20 mT, 750 kHz), the nanovectors demonstrated their ability to induce mild hyperthermia (43 °C) and strong anticancer effects against U-87 MG cells (scarce survival of cells characterized by low proliferation rates and high apoptosis levels). The optimal anticancer effects resulted from the synergic combination of hyperthermia chronic stimulation and the controlled temozolomide release, highlighting the potential of the proposed drug-loaded lipid magnetic nanovectors for treatment of glioblastoma multiforme.
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Affiliation(s)
- Christos Tapeinos
- Smart Bio-Interfaces
, Istituto Italiano di Tecnologia
,
Pontedera (Pisa)
, 56025 Italy
.
;
;
| | - Attilio Marino
- Smart Bio-Interfaces
, Istituto Italiano di Tecnologia
,
Pontedera (Pisa)
, 56025 Italy
.
;
;
| | - Matteo Battaglini
- Smart Bio-Interfaces
, Istituto Italiano di Tecnologia
,
Pontedera (Pisa)
, 56025 Italy
.
;
;
- The Biorobotics Institute
, Scuola Superiore Sant'Anna
,
Pontedera (Pisa)
, 56025 Italy
| | - Simone Migliorin
- Department of Mechanical and Aerospace Engineering
, Politecnico di Torino
,
Torino
, 10129 Italy
| | - Rosaria Brescia
- Electron Microscopy Facility
, Istituto Italiano di Tecnologia
,
Genova
, 16163 Italy
| | - Alice Scarpellini
- Electron Microscopy Facility
, Istituto Italiano di Tecnologia
,
Genova
, 16163 Italy
| | - César De Julián Fernández
- Istituto dei Materiali per l'Elettronica e il Magnetismo
, Consiglio Nazionale delle Ricerche – CNR
,
Parma
, 43124 Italy
| | - Mirko Prato
- Materials Characterization Facility
, Istituto Italiano di Tecnologia
,
Genova
, 16163 Italy
| | - Filippo Drago
- Nanochemistry Department
, Istituto Italiano di Tecnologia
,
Genova
, 16163 Italy
| | - Gianni Ciofani
- Smart Bio-Interfaces
, Istituto Italiano di Tecnologia
,
Pontedera (Pisa)
, 56025 Italy
.
;
;
- Department of Mechanical and Aerospace Engineering
, Politecnico di Torino
,
Torino
, 10129 Italy
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Campanini M, Nasi L, Fabbrici S, Casoli F, Celegato F, Barrera G, Chiesi V, Bedogni E, Magén C, Grillo V, Bertoni G, Righi L, Tiberto P, Albertini F. Magnetic Shape Memory Turns to Nano: Microstructure Controlled Actuation of Free-Standing Nanodisks. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2018; 14:e1803027. [PMID: 30294862 DOI: 10.1002/smll.201803027] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 09/12/2018] [Indexed: 06/08/2023]
Abstract
Magnetic shape memory materials hold a great promise for next-generation actuation devices and systems for energy conversion, thanks to the intimate coupling between structure and magnetism in their martensitic phase. Here novel magnetic shape memory free-standing nanodisks are proposed, proving that the lack of the substrate constrains enables the exploitation of new microstructure-controlled actuation mechanisms by the combined application of different stimuli-i.e., temperature and magnetic field. The results show that a reversible areal strain (up to 5.5%) can be achieved and tuned in intensity and sign (i.e., areal contraction or expansion) by the application of a magnetic field. The mechanisms at the basis of the actuation are investigated by experiments performed at different length scales and directly visualized by several electron microscopy techniques, including electron holography, showing that thermo/magnetomechanical properties can be optimized by engineering the martensitic microstructure through epitaxial growth and lateral confinement. These findings represent a step forward toward the development of a new class of temperature-field controlled nanoactuators and smart nanomaterials.
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Affiliation(s)
- Marco Campanini
- IMEM-CNR, Parco Area delle Scienze 37/A, 43124, Parma, Italy
- Empa, Ueberlandstrasse 129, 8600, Dübendorf, Switzerland
| | - Lucia Nasi
- IMEM-CNR, Parco Area delle Scienze 37/A, 43124, Parma, Italy
| | - Simone Fabbrici
- IMEM-CNR, Parco Area delle Scienze 37/A, 43124, Parma, Italy
- MIST E-R, via P. Gobetti 101, 40129, Bologna, Italy
| | | | | | | | | | - Elena Bedogni
- Dipartimento di Scienze Chimiche, Università di Parma, 43121, Parma, Italy
| | - César Magén
- ICMA, Universidad de Zaragoza-CSIC, 50009, Zaragoza, Spain
- LMA, Instituto de Nanociencia de Aragón, Universidad de Zaragoza, 50018, Zaragoza, Spain
| | - Vincenzo Grillo
- IMEM-CNR, Parco Area delle Scienze 37/A, 43124, Parma, Italy
- S3-CNR, Via Campi 213A, 41125, Modena, Italy
| | - Giovanni Bertoni
- IMEM-CNR, Parco Area delle Scienze 37/A, 43124, Parma, Italy
- Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genova, Italy
| | - Lara Righi
- Dipartimento di Scienze Chimiche, Università di Parma, 43121, Parma, Italy
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Unraveling Nanoscale Magnetic Ordering in Fe3O4 Nanoparticle Assemblies via X-rays. MAGNETOCHEMISTRY 2018. [DOI: 10.3390/magnetochemistry4040042] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Understanding the correlations between magnetic nanoparticles is important for nanotechnologies, such as high-density magnetic recording and biomedical applications, where functionalized magnetic particles are used as contrast agents and for drug delivery. The ability to control the magnetic state of individual particles depends on the good knowledge of the magnetic correlations between particles when assembled. Inaccessible via standard magnetometry techniques, nanoscale magnetic ordering in self-assemblies of Fe3O4 nanoparticles is here unveiled via X-ray resonant magnetic scattering (XRMS). Measured throughout the magnetization process, the XRMS signal reveals size-dependent inter-particle magnetic correlations. Smaller (5 nm) particles show little magnetic correlations, even when packed close together, yielding to magnetic disorder in the absence of an external field, i.e., superparamagnetism. In contrast, larger (11 nm) particles tend to be more strongly correlated, yielding a mix of magnetic orders including ferromagnetic and anti-ferromagnetic orders. These magnetic correlations are present even when the particles are sparsely distributed.
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Ravichandran M, Velumani S, Ramirez JT. Water-dispersible magnetite nanoparticles as
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MR imaging contrast agent. Biomed Phys Eng Express 2017. [DOI: 10.1088/2057-1976/aa59bf] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Ivanov AO, Kantorovich SS, Zverev VS, Elfimova EA, Lebedev AV, Pshenichnikov AF. Temperature-dependent dynamic correlations in suspensions of magnetic nanoparticles in a broad range of concentrations: a combined experimental and theoretical study. Phys Chem Chem Phys 2016; 18:18342-52. [DOI: 10.1039/c6cp02793h] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We study the effects of temperature and concentration on the dynamic spectra of polydisperse magnetic nanoparticle suspensions.
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Vita F, Gavilán H, Rossi F, de Julián Fernández C, Secchi A, Arduini A, Albertini F, Morales MP. Tuning morphology and magnetism of magnetite nanoparticles by calix[8]arene-induced oriented aggregation. CrystEngComm 2016. [DOI: 10.1039/c6ce01252c] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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