151
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Luongo G, Campagnolo P, Perez JE, Kosel J, Georgiou TK, Regoutz A, Payne DJ, Stevens MM, Ryan MP, Porter AE, Dunlop IE. Scalable High-Affinity Stabilization of Magnetic Iron Oxide Nanostructures by a Biocompatible Antifouling Homopolymer. ACS APPLIED MATERIALS & INTERFACES 2017; 9:40059-40069. [PMID: 29022699 DOI: 10.1021/acsami.7b12290] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Iron oxide nanostructures have been widely developed for biomedical applications because of their magnetic properties and biocompatibility. In clinical applications, stabilization of these nanostructures against aggregation and nonspecific interactions is typically achieved using weakly anchored polysaccharides, with better-defined and more strongly anchored synthetic polymers not commercially adopted because of their complexity of synthesis and use. Here, we show for the first time stabilization and biocompatibilization of iron oxide nanoparticles by a synthetic homopolymer with strong surface anchoring and a history of clinical use in other applications, poly(2-methacryloyloxyethyl phosphorylcholine) [poly(MPC)]. For the commercially important case of spherical particles, binding of poly(MPC) to iron oxide surfaces and highly effective individualization of magnetite nanoparticles (20 nm) are demonstrated. Next-generation high-aspect-ratio nanowires (both magnetite/maghemite and core-shell iron/iron oxide) are, furthermore, stabilized by poly(MPC) coating, with the nanowire cytotoxicity at large concentrations significantly reduced. The synthesis approach exploited to incorporate functionality into the poly(MPC) chain is demonstrated by random copolymerization with an alkyne-containing monomer for click chemistry. Taking these results together, poly(MPC) homopolymers and random copolymers offer a significant improvement over current iron oxide nanoformulations, combining straightforward synthesis, strong surface anchoring, and well-defined molecular weight.
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Affiliation(s)
| | - Paola Campagnolo
- School of Biosciences and Medicine, Faculty of Health and Medical Sciences, University of Surrey , Guildford GU27XH, United Kingdom
| | - Jose E Perez
- King Abdullah University of Science and Technology , Thuwal 23955, Kingdom of Saudi Arabia
| | - Jürgen Kosel
- King Abdullah University of Science and Technology , Thuwal 23955, Kingdom of Saudi Arabia
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152
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Belec B, Dražić G, Gyergyek S, Podmiljšak B, Goršak T, Komelj M, Nogués J, Makovec D. Novel Ba-hexaferrite structural variations stabilized on the nanoscale as building blocks for epitaxial bi-magnetic hard/soft sandwiched maghemite/hexaferrite/maghemite nanoplatelets with out-of-plane easy axis and enhanced magnetization. NANOSCALE 2017; 9:17551-17560. [PMID: 29111545 DOI: 10.1039/c7nr05894b] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Atomic-resolution scanning-transmission electron microscopy showed that barium hexaferrite (BHF) nanoplatelets display a distinct structure, which represents a novel structural variation of hexaferrites stabilized on the nanoscale. The structure can be presented in terms of two alternating structural blocks stacked across the nanoplatelet: a hexagonal (BaFe6O11)2- R block and a cubic (Fe6O8)2+ spinel S block. The structure of the BHF nanoplatelets comprises only two, or rarely three, R blocks and always terminates at the basal surfaces with the full S blocks. The structure of a vast majority of the nanoplatelets can be described with a SR*S*RS stacking order, corresponding to a BaFe15O23 composition. The nanoplatelets display a large, uniaxial magnetic anisotropy with the easy axis perpendicular to the platelet, which is a crucial property enabling different novel applications based on aligning the nanoplatelets with applied magnetic fields. However, the BHF nanoplatelets exhibit a modest saturation magnetization, MS, of just over 30 emu g-1. Given the cubic S block termination of the platelets, layers of maghemite, γ-Fe2O3, (M), with a cubic spinel structure, can be easily grown epitaxially on the surfaces of the platelets, forming a sandwiched M/BHF/M platelet structure. The exchange-coupled composite nanoplatelets exhibit a remarkably uniform structure, with an enhanced MS of more than 50 emu g-1 while essentially maintaining the out-of-plane easy axis. The enhanced MS could pave the way for their use in diverse platelet-based magnetic applications.
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Affiliation(s)
- B Belec
- Department for Materials Synthesis, Jožef Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia.
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153
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Wong DW, Gan WL, Liu N, Lew WS. Magneto-actuated cell apoptosis by biaxial pulsed magnetic field. Sci Rep 2017; 7:10919. [PMID: 28883430 PMCID: PMC5589943 DOI: 10.1038/s41598-017-11279-w] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Accepted: 08/22/2017] [Indexed: 12/04/2022] Open
Abstract
We report on a highly efficient magneto-actuated cancer cell apoptosis method using a biaxial pulsed magnetic field configuration, which maximizes the induced magnetic torque. The light transmissivity dynamics show that the biaxial magnetic field configuration can actuate the magnetic nanoparticles with higher responsiveness over a wide range of frequencies as compared to uniaxial field configurations. Its efficacy was demonstrated in in vitro cell destruction experiments with a greater reduction in cell viability. Magnetic nanoparticles with high aspect ratios were also found to form a triple vortex magnetization at remanence which increases its low field susceptibility. This translates to a larger magneto-mechanical actuated force at low fields and 12% higher efficacy in cell death as compared to low aspect ratio nanoparticles.
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Affiliation(s)
- De Wei Wong
- School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
| | - Wei Liang Gan
- School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
| | - Ning Liu
- School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
| | - Wen Siang Lew
- School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore.
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154
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Wang YP, Liao YT, Liu CH, Yu J, Alamri HR, Alothman ZA, Hossain MSA, Yamauchi Y, Wu KCW. Trifunctional Fe 3O 4/CaP/Alginate Core-Shell-Corona Nanoparticles for Magnetically Guided, pH-Responsive, and Chemically Targeted Chemotherapy. ACS Biomater Sci Eng 2017; 3:2366-2374. [PMID: 33445294 DOI: 10.1021/acsbiomaterials.7b00230] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Chemotherapy of bladder cancer has limited efficacy because of the short retention time of drugs in the bladder during therapy. In this research, nanoparticles (NPs) with a new core/shell/corona nanostructure have been synthesized, consisting of iron oxide (Fe3O4) as the core to providing magnetic properties, drug (doxorubicin) loaded calcium phosphate (CaP) as the shell for pH-responsive release, and arginylglycylaspartic acid (RGD)-containing peptide functionalized alginate as the corona for cell targeting (with the composite denoted as RGD-Fe3O4/CaP/Alg NPs). We have optimized the reaction conditions to obtain RGD-Fe3O4/CaP/Alg NPs with high biocompatibility and suitable particle size, surface functionality, and drug loading/release behavior. The results indicate that the RGD-Fe3O4/CaP/Alg NPs exhibit enhanced chemotherapy efficacy toward T24 bladder cancer cells, owing to successful magnetic guidance, pH-responsive release, and improved cellular uptake, which give these NPs great potential as therapeutic agents for future in vivo drug delivery systems.
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Affiliation(s)
- Yu-Pu Wang
- Department of Chemical Engineering, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan
| | - Yu-Te Liao
- Department of Chemical Engineering, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan
| | - Chia-Hung Liu
- Department of Urology, Taipei Medical University-Shuang Ho Hospital, No. 291, Jhongjheng Road, Jhonghe Dist., New Taipei City 23561, Taiwan
| | - Jiashing Yu
- Department of Chemical Engineering, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan
| | - Hatem R Alamri
- Physics Department, Jamoum University College, Umm Al-Qura University, Makkah 21955, Saudi Arabia
| | - Zeid A Alothman
- Advanced Materials Research Chair, Chemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Md Shahriar A Hossain
- Australian Institute for Innovative Materials (AIIM), University of Wollongong, Squires Way, North Wollongong, New South Wales 2500, Australia.,International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Yusuke Yamauchi
- Australian Institute for Innovative Materials (AIIM), University of Wollongong, Squires Way, North Wollongong, New South Wales 2500, Australia.,International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Kevin C-W Wu
- Department of Chemical Engineering, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan.,Division of Medical Engineering Research, National Health Research Institutes, 35 Keyan Road, Zhunan, Miaoli County 350, Taiwan
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155
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Cell damage produced by magnetic fluid hyperthermia on microglial BV2 cells. Sci Rep 2017; 7:8627. [PMID: 28819156 PMCID: PMC5561037 DOI: 10.1038/s41598-017-09059-7] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Accepted: 07/19/2017] [Indexed: 02/07/2023] Open
Abstract
We present evidence on the effects of exogenous heating by water bath (WB) and magnetic hyperthermia (MHT) on a glial micro-tumor phantom. To this, magnetic nanoparticles (MNPs) of 30-40 nm were designed to obtain particle sizes for maximum heating efficiency. The specific power absorption (SPA) values (f = 560 kHz, H = 23.9 kA/m) for as prepared colloids (533-605 W/g) dropped to 98-279 W/g in culture medium. The analysis of the intracellular MNPs distribution showed vesicle-trapped MNPs agglomerates spread along the cytoplasm, as well as large (~0.5-0.9 μm) clusters attached to the cell membrane. Immediately after WB and MHT (T = 46 °C for 30 min) the cell viability was ≈70% and, after 4.5 h, decreased to 20-25%, demonstrating that metabolic processes are involved in cell killing. The analysis of the cell structures after MHT revealed a significant damage of the cell membrane that is correlated to the location of MNPs clusters, while local cell damage were less noticeable after WB without MNPs. In spite of the similar thermal effects of WB and MHT on the cell viability, our results suggest that there is an additional mechanism of cell damage related to the presence of MNPs at the intracellular space.
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156
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Goiriena-Goikoetxea M, Guslienko KY, Rouco M, Orue I, Berganza E, Jaafar M, Asenjo A, Fernández-Gubieda ML, Fernández Barquín L, García-Arribas A. Magnetization reversal in circular vortex dots of small radius. NANOSCALE 2017; 9:11269-11278. [PMID: 28758656 DOI: 10.1039/c7nr02389h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
We present a detailed study of the magnetic behavior of Permalloy (Ni80Fe20 alloy) circular nanodots with small radii (30 nm and 70 nm) and different thicknesses (30 nm or 50 nm). Despite the small size of the dots, the measured hysteresis loops manifestly display the features of classical vortex behavior with zero remanence and lobes at high magnetic fields. This is remarkable because the size of the magnetic vortex core is comparable to the dot diameter, as revealed by magnetic force microscopy and micromagnetic simulations. The dot ground states are close to the border of the vortex stability and, depending on the dot size, the magnetization distribution combines attributes of the typical vortex, single domain states or even presents features resembling magnetic skyrmions. An analytical model of the dot magnetization reversal, accounting for the large vortex core size, is developed to explain the observed behavior, providing a rather good agreement with the experimental results. The study extends the understanding of magnetic nanodots beyond the classical vortex concept (where the vortex core spins have a negligible influence on the magnetic behavior) and can therefore be useful for improving emerging spintronic applications, such as spin-torque nano-oscillators. It also delimits the feasibility of producing a well-defined vortex configuration in sub-100 nm dots, enabling the intracellular magneto-mechanical actuation for biomedical applications.
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Affiliation(s)
- M Goiriena-Goikoetxea
- Basque Center for Materials, Applications and Nanostructures (BCMaterials), Parque Tecnológico de Bizkaia, Building 500, Derio, Spain.
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157
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Zheng Y, Chen WJ. Characteristics and controllability of vortices in ferromagnetics, ferroelectrics, and multiferroics. REPORTS ON PROGRESS IN PHYSICS. PHYSICAL SOCIETY (GREAT BRITAIN) 2017; 80:086501. [PMID: 28155849 DOI: 10.1088/1361-6633/aa5e03] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Topological defects in condensed matter are attracting e significant attention due to their important role in phase transition and their fascinating characteristics. Among the various types of matter, ferroics which possess a switchable physical characteristic and form domain structure are ideal systems to form topological defects. In particular, a special class of topological defects-vortices-have been found to commonly exist in ferroics. They often manifest themselves as singular regions where domains merge in large systems, or stabilize as novel order states instead of forming domain structures in small enough systems. Understanding the characteristics and controllability of vortices in ferroics can provide us with deeper insight into the phase transition of condensed matter and also exciting opportunities in designing novel functional devices such as nano-memories, sensors, and transducers based on topological defects. In this review, we summarize the recent experimental and theoretical progress in ferroic vortices, with emphasis on those spin/dipole vortices formed in nanoscale ferromagnetics and ferroelectrics, and those structural domain vortices formed in multiferroic hexagonal manganites. We begin with an overview of this field. The fundamental concepts of ferroic vortices, followed by the theoretical simulation and experimental methods to explore ferroic vortices, are then introduced. The various characteristics of vortices (e.g. formation mechanisms, static/dynamic features, and electronic properties) and their controllability (e.g. by size, geometry, external thermal, electrical, magnetic, or mechanical fields) in ferromagnetics, ferroelectrics, and multiferroics are discussed in detail in individual sections. Finally, we conclude this review with an outlook on this rapidly developing field.
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Affiliation(s)
- Yue Zheng
- State Key Laboratory of Optoelectronic Materials and Technologies, School of Physics, Sun Yat-sen University, Guangzhou 510275, Guangdong, People's Republic of China. Micro&Nano Physics and Mechanics Research Laboratory, School of Physics, Sun Yat-sen University, Guangzhou 510275, Guangdong, People's Republic of China
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158
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Mazuel F, Mathieu S, Di Corato R, Bacri JC, Meylheuc T, Pellegrino T, Reffay M, Wilhelm C. Forced- and Self-Rotation of Magnetic Nanorods Assembly at the Cell Membrane: A Biomagnetic Torsion Pendulum. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2017; 13:1701274. [PMID: 28660724 DOI: 10.1002/smll.201701274] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Revised: 05/10/2017] [Indexed: 06/07/2023]
Abstract
In order to provide insight into how anisotropic nano-objects interact with living cell membranes, and possibly self-assemble, magnetic nanorods with an average size of around 100 nm × 1 µm are designed by assembling iron oxide nanocubes within a polymeric matrix under a magnetic field. The nano-bio interface at the cell membrane under the influence of a rotating magnetic field is then explored. A complex structuration of the nanorods intertwined with the membranes is observed. Unexpectedly, after a magnetic rotating stimulation, the resulting macrorods are able to rotate freely for multiple rotations, revealing the creation of a biomagnetic torsion pendulum.
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Affiliation(s)
- François Mazuel
- Laboratoire Matière et Systèmes Complexes (MSC), UMR 7057, CNRS and Université Paris Diderot, Paris Cedex 05, 75205, France
| | - Samuel Mathieu
- Laboratoire Matière et Systèmes Complexes (MSC), UMR 7057, CNRS and Université Paris Diderot, Paris Cedex 05, 75205, France
| | - Riccardo Di Corato
- Laboratoire Matière et Systèmes Complexes (MSC), UMR 7057, CNRS and Université Paris Diderot, Paris Cedex 05, 75205, France
- Dipartimento di Matematica e Fisica "Ennio De Giorgi", Università del Salento, Via Arnesano, Lecce, 73100, Italy
| | - Jean-Claude Bacri
- Laboratoire Matière et Systèmes Complexes (MSC), UMR 7057, CNRS and Université Paris Diderot, Paris Cedex 05, 75205, France
| | - Thierry Meylheuc
- Micalis Institute INRA, AgroParisTech, Université Paris-Saclay, 78350, Jouy-en-Josas, France
| | | | - Myriam Reffay
- Laboratoire Matière et Systèmes Complexes (MSC), UMR 7057, CNRS and Université Paris Diderot, Paris Cedex 05, 75205, France
| | - Claire Wilhelm
- Laboratoire Matière et Systèmes Complexes (MSC), UMR 7057, CNRS and Université Paris Diderot, Paris Cedex 05, 75205, France
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159
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Shen Y, Cheng Y, Uyeda TQP, Plaza GR. Cell Mechanosensors and the Possibilities of Using Magnetic Nanoparticles to Study Them and to Modify Cell Fate. Ann Biomed Eng 2017; 45:2475-2486. [PMID: 28744841 DOI: 10.1007/s10439-017-1884-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2017] [Accepted: 07/07/2017] [Indexed: 12/13/2022]
Abstract
The use of magnetic nanoparticles (MNPs) is a promising technique for future advances in biomedical applications. This idea is supported by the availability of MNPs that can target specific cell components, the variety of shapes of MNPs and the possibility of finely controlling the applied magnetic forces. To examine this opportunity, here we review the current developments in the use of MNPs to mechanically stimulate cells and, specifically, the cell mechanotransduction systems. We analyze the cell components that may act as mechanosensors and their effect on cell fate and we focus on the promising possibilities of controlling stem-cell differentiation, inducing cancer-cell death and treating nervous-system diseases.
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Affiliation(s)
- Yajing Shen
- The Institute for Translational Nanomedicine, Shanghai East Hospital, The Institute for Biomedical Engineering & Nano Science, Tongji University School of Medicine, Shanghai, 200120, China
| | - Yu Cheng
- The Institute for Translational Nanomedicine, Shanghai East Hospital, The Institute for Biomedical Engineering & Nano Science, Tongji University School of Medicine, Shanghai, 200120, China.
| | - Taro Q P Uyeda
- The Institute for Translational Nanomedicine, Shanghai East Hospital, The Institute for Biomedical Engineering & Nano Science, Tongji University School of Medicine, Shanghai, 200120, China.,Department of Physics, Faculty of Science and Engineering, Waseda University, Tokyo, 169-8555, Japan
| | - Gustavo R Plaza
- The Institute for Translational Nanomedicine, Shanghai East Hospital, The Institute for Biomedical Engineering & Nano Science, Tongji University School of Medicine, Shanghai, 200120, China. .,Center for Biomedical Technology, Universidad Politécnica de Madrid, 28223, Pozuelo de Alarcón, Spain.
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160
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Mansell R, Vemulkar T, Petit DCMC, Cheng Y, Murphy J, Lesniak MS, Cowburn RP. Magnetic particles with perpendicular anisotropy for mechanical cancer cell destruction. Sci Rep 2017; 7:4257. [PMID: 28652596 PMCID: PMC5484683 DOI: 10.1038/s41598-017-04154-1] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2016] [Accepted: 05/10/2017] [Indexed: 11/12/2022] Open
Abstract
We demonstrate the effectiveness of out-of-plane magnetized magnetic microdiscs for cancer treatment through mechanical cell disruption under an applied rotating magnetic field. The magnetic particles are synthetic antiferromagnets formed from a repeated motif of ultrathin CoFeB/Pt layers. In-vitro studies on glioma cells are used to compare the efficiency of the CoFeB/Pt microdiscs with Py vortex microdiscs. It is found that the CoFeB/Pt microdiscs are able to damage 62 ± 3% of cancer cells compared with 12 ± 2% after applying a 10 kOe rotating field for one minute. The torques applied by each type of particle are measured and are shown to match values predicted by a simple Stoner-Wohlfarth anisotropy model, giving maximum values of 20 fNm for the CoFeB/Pt and 75 fNm for the Py vortex particles. The symmetry of the anisotropy is argued to be more important than the magnitude of the torque in causing effective cell destruction in these experiments. This work shows how future magnetic particles can be successfully designed for applications requiring control of applied torques.
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Affiliation(s)
- Rhodri Mansell
- Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge, CB3 OHE, UK.
| | - Tarun Vemulkar
- Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge, CB3 OHE, UK
| | - Dorothée C M C Petit
- Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge, CB3 OHE, UK
| | - Yu Cheng
- The Institute for Translational Nanomedicine, Shanghai East Hospital; The Institute for Biomedical Engineering & Nano Science, Tongji University School of Medicine, Shanghai, 200120, China
| | - Jason Murphy
- Northwestern University Feinberg School of Medicine, 676 North Saint Clair Street, Suite 2210, Chicago, Illinois, 60611, United States
| | - Maciej S Lesniak
- Northwestern University Feinberg School of Medicine, 676 North Saint Clair Street, Suite 2210, Chicago, Illinois, 60611, United States
| | - Russell P Cowburn
- Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge, CB3 OHE, UK
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161
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Belyanina I, Kolovskaya O, Zamay S, Gargaun A, Zamay T, Kichkailo A. Targeted Magnetic Nanotheranostics of Cancer. Molecules 2017; 22:E975. [PMID: 28604617 PMCID: PMC6152710 DOI: 10.3390/molecules22060975] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Revised: 06/02/2017] [Accepted: 06/06/2017] [Indexed: 12/31/2022] Open
Abstract
Current advances in targeted magnetic nanotheranostics are summarized in this review. Unique structural, optical, electronic and thermal properties of magnetic materials in nanometer scale are attractive in the field of biomedicine. Magnetic nanoparticles functionalized with therapeutic molecules, ligands for targeted delivery, fluorescent and other chemical agents can be used for cancer diagnostic and therapeutic purposes. High selectivity, small size, and low immunogenicity of synthetic nucleic acid aptamers make them attractive delivery agents for therapeutic purposes. Properties, production and functionalization of magnetic nanoparticles and aptamers as ligands for targeted delivery are discussed herein. In recent years, magnetic nanoparticles have been widely used in diagnostic methods, such as scintigraphy, single photon emission computed tomography (SPECT), positron emission tomography (PET), magnetic resonance imaging (MRI), and Raman spectroscopy. Therapeutic purposes of magnetic nanoconstructions are also promising. They are used for effective drug delivery, magnetic mediated hypertermia, and megnetodynamic triggering of apoptosis. Thus, magnetic nanotheranostics opens a new venue for complex differential diagnostics, and therapy of metastatic cancer.
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Affiliation(s)
- Irina Belyanina
- Krasnoyarsk State Medical University named after prof. V.F. Voino-Yaseneckii, 660022 Krasnoyarsk, Russia.
| | - Olga Kolovskaya
- Krasnoyarsk State Medical University named after prof. V.F. Voino-Yaseneckii, 660022 Krasnoyarsk, Russia.
- Federal Research Center, KSC Siberian Branch of Russian Academy of Science, 660022 Krasnoyarsk, Russia.
| | - Sergey Zamay
- Federal Research Center, KSC Siberian Branch of Russian Academy of Science, 660022 Krasnoyarsk, Russia.
| | - Ana Gargaun
- Independent Researcher Vancouver, Vancouver, BC V6K 1C4, Canada.
| | - Tatiana Zamay
- Krasnoyarsk State Medical University named after prof. V.F. Voino-Yaseneckii, 660022 Krasnoyarsk, Russia.
- Federal Research Center, KSC Siberian Branch of Russian Academy of Science, 660022 Krasnoyarsk, Russia.
| | - Anna Kichkailo
- Krasnoyarsk State Medical University named after prof. V.F. Voino-Yaseneckii, 660022 Krasnoyarsk, Russia.
- Federal Research Center, KSC Siberian Branch of Russian Academy of Science, 660022 Krasnoyarsk, Russia.
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162
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Fernández-Pacheco A, Streubel R, Fruchart O, Hertel R, Fischer P, Cowburn RP. Three-dimensional nanomagnetism. Nat Commun 2017; 8:15756. [PMID: 28598416 PMCID: PMC5494189 DOI: 10.1038/ncomms15756] [Citation(s) in RCA: 155] [Impact Index Per Article: 22.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Accepted: 04/20/2017] [Indexed: 01/18/2023] Open
Abstract
Magnetic nanostructures are being developed for use in many aspects of our daily life, spanning areas such as data storage, sensing and biomedicine. Whereas patterned nanomagnets are traditionally two-dimensional planar structures, recent work is expanding nanomagnetism into three dimensions; a move triggered by the advance of unconventional synthesis methods and the discovery of new magnetic effects. In three-dimensional nanomagnets more complex magnetic configurations become possible, many with unprecedented properties. Here we review the creation of these structures and their implications for the emergence of new physics, the development of instrumentation and computational methods, and exploitation in numerous applications. Nanoscale magnetic devices play a key role in modern technologies but current applications involve only 2D structures like magnetic discs. Here the authors review recent progress in the fabrication and understanding of 3D magnetic nanostructures, enabling more diverse functionalities.
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Affiliation(s)
| | - Robert Streubel
- Division of Materials Sciences, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - Olivier Fruchart
- Univ. Grenoble Alpes, CNRS, CEA, Grenoble INP, INAC, SPINTEC, F-38000 Grenoble, France
| | - Riccardo Hertel
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, Department of Magnetic Objects on the Nanoscale, F-67000 Strasbourg, France
| | - Peter Fischer
- Division of Materials Sciences, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA.,Department of Physics, UC Santa Cruz, Santa Cruz, California 95064, USA
| | - Russell P Cowburn
- Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, UK
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163
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Timonen JVI, Grzybowski BA. Tweezing of Magnetic and Non-Magnetic Objects with Magnetic Fields. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:1603516. [PMID: 28198579 DOI: 10.1002/adma.201603516] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2016] [Revised: 10/06/2016] [Indexed: 06/06/2023]
Abstract
Although strong magnetic fields cannot be conveniently "focused" like light, modern microfabrication techniques enable preparation of microstructures with which the field gradients - and resulting magnetic forces - can be localized to very small dimensions. This ability provides the foundation for magnetic tweezers which in their classical variant can address magnetic targets. More recently, the so-called negative magnetophoretic tweezers have also been developed which enable trapping and manipulations of completely nonmagnetic particles provided that they are suspended in a high-magnetic-susceptibility liquid. These two modes of magnetic tweezing are complimentary techniques tailorable for different types of applications. This Progress Report provides the theoretical basis for both modalities and illustrates their specific uses ranging from the manipulation of colloids in 2D and 3D, to trapping of living cells, control of cell function, experiments with single molecules, and more.
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Affiliation(s)
- Jaakko V I Timonen
- Department of Applied Physics, Aalto University School of Science, Espoo, 02150, Finland
| | - Bartosz A Grzybowski
- Center for Soft and Living Matter, Ulsan National Institute of Science and Technology, Ulsan, 44919, South Korea
- Department of Chemistry, Ulsan National Institute of Science and Technology, Ulsan, 44919, South Korea
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164
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Stebliy ME, Jain S, Kolesnikov AG, Ognev AV, Samardak AS, Davydenko AV, Sukovatitcina EV, Chebotkevich LA, Ding J, Pearson J, Khovaylo V, Novosad V. Vortex dynamics and frequency splitting in vertically coupled nanomagnets. Sci Rep 2017; 7:1127. [PMID: 28442791 PMCID: PMC5430672 DOI: 10.1038/s41598-017-01222-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Accepted: 03/08/2017] [Indexed: 11/23/2022] Open
Abstract
We explored the dynamic response of a vortex core in a circular nanomagnet by manipulating its dipole-dipole interaction with another vortex core confined locally on top of the nanomagnet. A clear frequency splitting is observed corresponding to the gyrofrequencies of the two vortex cores. The peak positions of the two resonance frequencies can be engineered by controlling the magnitude and direction of the external magnetic field. Both experimental and micromagnetic simulations show that the frequency spectra for the combined system is significantly dependent on the chirality of the circular nanomagnet and is asymmetric with respect to the external bias field. We attribute this result to the strong dynamic dipole-dipole interaction between the two vortex cores, which varies with the distance between them. The possibility of having multiple states in a single nanomagnet with vertical coupling could be of interest for magnetoresistive memories.
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Affiliation(s)
- M E Stebliy
- School of Natural Sciences, Far Eastern Federal University, Vladivostok, 690091, Russia
| | - S Jain
- Argonne National Laboratory, Materials Science Division, Argonne, 60439, Ilinois, United States.,Western Digital, 1710 Automation Pkwy, San Jose, 95131, California, United States
| | - A G Kolesnikov
- School of Natural Sciences, Far Eastern Federal University, Vladivostok, 690091, Russia
| | - A V Ognev
- School of Natural Sciences, Far Eastern Federal University, Vladivostok, 690091, Russia.,National Research South Ural State University, Chelyabinsk, 454080, Russia
| | - A S Samardak
- School of Natural Sciences, Far Eastern Federal University, Vladivostok, 690091, Russia. .,National Research South Ural State University, Chelyabinsk, 454080, Russia.
| | - A V Davydenko
- School of Natural Sciences, Far Eastern Federal University, Vladivostok, 690091, Russia
| | - E V Sukovatitcina
- School of Natural Sciences, Far Eastern Federal University, Vladivostok, 690091, Russia
| | - L A Chebotkevich
- School of Natural Sciences, Far Eastern Federal University, Vladivostok, 690091, Russia
| | - J Ding
- Argonne National Laboratory, Materials Science Division, Argonne, 60439, Ilinois, United States
| | - J Pearson
- Argonne National Laboratory, Materials Science Division, Argonne, 60439, Ilinois, United States
| | - V Khovaylo
- National University of Science and Technology ("MISiS"), Moscow, 119049, Russia.,National Research South Ural State University, Chelyabinsk, 454080, Russia
| | - V Novosad
- Argonne National Laboratory, Materials Science Division, Argonne, 60439, Ilinois, United States.
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165
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Shen Y, Wu C, Uyeda TQP, Plaza GR, Liu B, Han Y, Lesniak MS, Cheng Y. Elongated Nanoparticle Aggregates in Cancer Cells for Mechanical Destruction with Low Frequency Rotating Magnetic Field. Theranostics 2017; 7:1735-1748. [PMID: 28529648 PMCID: PMC5436524 DOI: 10.7150/thno.18352] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Accepted: 02/03/2017] [Indexed: 12/16/2022] Open
Abstract
Magnetic nanoparticles (MNPs) functionalized with targeting moieties can recognize specific cell components and induce mechanical actuation under magnetic field. Their size is adequate for reaching tumors and targeting cancer cells. However, due to the nanometric size, the force generated by MNPs is smaller than the force required for largely disrupting key components of cells. Here, we show the magnetic assembly process of the nanoparticles inside the cells, to form elongated aggregates with the size required to produce elevated mechanical forces. We synthesized iron oxide nanoparticles doped with zinc, to obtain high magnetization, and functionalized with the epidermal growth factor (EGF) peptide for targeting cancer cells. Under a low frequency rotating magnetic field at 15 Hz and 40 mT, the internalized EGF-MNPs formed elongated aggregates and generated hundreds of pN to dramatically damage the plasma and lysosomal membranes. The physical disruption, including leakage of lysosomal hydrolases into the cytosol, led to programmed cell death and necrosis. Our work provides a novel strategy of designing magnetic nanomedicines for mechanical destruction of cancer cells.
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Affiliation(s)
- Yajing Shen
- The Institute for Translational Nanomedicine, Shanghai East Hospital, The Institute for Biomedical Engineering & Nano Science, Tongji University School of Medicine, Shanghai, 200120, China
| | - Congyu Wu
- The Institute for Translational Nanomedicine, Shanghai East Hospital, The Institute for Biomedical Engineering & Nano Science, Tongji University School of Medicine, Shanghai, 200120, China
| | - Taro Q. P. Uyeda
- The Institute for Translational Nanomedicine, Shanghai East Hospital, The Institute for Biomedical Engineering & Nano Science, Tongji University School of Medicine, Shanghai, 200120, China
- Department of Physics, Faculty of Science and Engineering, Waseda University, Tokyo 169-8555, Japan
| | - Gustavo R. Plaza
- The Institute for Translational Nanomedicine, Shanghai East Hospital, The Institute for Biomedical Engineering & Nano Science, Tongji University School of Medicine, Shanghai, 200120, China
- Center for Biomedical Technology, Universidad Politécnica de Madrid, 28223 Pozuelo de Alarcón, Spain
| | - Bin Liu
- Unit of Cell Death and Metabolism, Danish Cancer Society Research Center, Strandboulevarden 49, DK2100 Copenhagen, Denmark
| | - Yu Han
- Northwestern University Feinberg School of Medicine, 676 North Saint Clair Street, Suite 2210, Chicago, Illinois 60611, United States
| | - Maciej S. Lesniak
- Northwestern University Feinberg School of Medicine, 676 North Saint Clair Street, Suite 2210, Chicago, Illinois 60611, United States
| | - Yu Cheng
- The Institute for Translational Nanomedicine, Shanghai East Hospital, The Institute for Biomedical Engineering & Nano Science, Tongji University School of Medicine, Shanghai, 200120, China
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166
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Iss C, Ortiz G, Truong A, Hou Y, Livache T, Calemczuk R, Sabon P, Gautier E, Auffret S, Buda-Prejbeanu LD, Strelkov N, Joisten H, Dieny B. Fabrication of nanotweezers and their remote actuation by magnetic fields. Sci Rep 2017; 7:451. [PMID: 28348407 PMCID: PMC5428679 DOI: 10.1038/s41598-017-00537-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Accepted: 02/28/2017] [Indexed: 11/09/2022] Open
Abstract
A new kind of nanodevice that acts like tweezers through remote actuation by an external magnetic field is designed. Such device is meant to mechanically grab micrometric objects. The nanotweezers are built by using a top-down approach and are made of two parallelepipedic microelements, at least one of them being magnetic, bound by a flexible nanohinge. The presence of an external magnetic field induces a torque on the magnetic elements that competes with the elastic torque provided by the nanohinge. A model is established in order to evaluate the values of the balanced torques as a function of the tweezers opening angles. The results of the calculations are confronted to the expected values and validate the overall working principle of the magnetic nanotweezers.
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167
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Yi Y, Sanchez L, Gao Y, Lee K, Yu Y. Interrogating Cellular Functions with Designer Janus Particles. CHEMISTRY OF MATERIALS : A PUBLICATION OF THE AMERICAN CHEMICAL SOCIETY 2017; 29:1448-1460. [PMID: 31530969 PMCID: PMC6748339 DOI: 10.1021/acs.chemmater.6b05322] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Janus particles have two distinct surfaces or compartments. This enables novel applications that are impossible with homogeneous particles, ranging from the engineering of active colloidal metastructures to creating multimodal therapeutic materials. Recent years have witnessed a rapid development of novel Janus structures and exploration of their applications, particularly in the biomedical arena. It, therefore, becomes crucial to understand how Janus particles with surface or structural anisotropy might interact with biological systems and how such interactions may be exploited to manipulate biological responses. This perspective highlights recent studies that have employed Janus particles as novel toolsets to manipulate, measure, and understand cellular functions. Janus particles have been shown to have biological interactions different from uniform particles. Their surface anisotropy has been used to control the cell entry of synthetic particles, to spatially organize stimuli for the activation of immune cells, and to enable direct visualization and measurement of rotational dynamics of particles in living systems. The work included in this perspective showcases the significance of understanding the biological interactions of Janus particles and the tremendous potential of harnessing such interactions to advance the development of Janus structure-based biomaterials.
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Affiliation(s)
| | | | | | | | - Yan Yu
- Corresponding Author (Y.Yu)
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168
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Angelakeris M. Magnetic nanoparticles: A multifunctional vehicle for modern theranostics. Biochim Biophys Acta Gen Subj 2017; 1861:1642-1651. [PMID: 28219721 DOI: 10.1016/j.bbagen.2017.02.022] [Citation(s) in RCA: 104] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Revised: 02/12/2017] [Accepted: 02/13/2017] [Indexed: 11/18/2022]
Abstract
Magnetic nanoparticles provide a unique multifunctional vehicle for modern theranostics since they can be remotely and non-invasively employed as imaging probes, carrier vectors and smart actuators. Additionally, special delivery schemes beyond the typical drug delivery such as heat or mechanical stress may be magnetically triggered to promote certain cellular pathways. To start with, we need magnetic nanoparticles with several well-defined and reproducible structural, physical, and chemical features, while bio-magnetic nanoparticle design imposes several additional constraints. Except for the intrinsic requirement for high quality of magnetic properties in order to obtain the maximum efficiency with the minimum dose, the surface manipulation of the nanoparticles is a key aspect not only for transferring them from the growth medium to the biological environment but also to bind functional molecules that will undertake specific targeting, drug delivery, cell-specific monitoring and designated treatment without sparing biocompatibility and sustainability in-vivo. The ability of magnetic nanoparticles to interact with matter at the nanoscale not only provides the possibility to ascertain the molecular constituents of a disease, but also the way in which the totality of a biological function may be affected as well. The capacity to incorporate an array of structural and chemical functionalities onto the same nanoscale architecture also enables more accurate, sensitive and precise screening together with cure of diseases with significant pathological heterogeneity such as cancer. This article is part of a Special Issue entitled "Recent Advances in Bionanomaterials" Guest Editor: Dr. Marie-Louise Saboungi and Dr. Samuel D. Bader.
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Affiliation(s)
- M Angelakeris
- Department of Physics, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece.
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169
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Static and Dynamic Magnetization Investigation in Permalloy Electrodeposited onto High Resistive N-Type Silicon Substrates. COATINGS 2017. [DOI: 10.3390/coatings7020033] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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170
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Surface Modification and Heat Generation of FePt Nanoparticles. MATERIALS 2017; 10:ma10020181. [PMID: 28772541 PMCID: PMC5459101 DOI: 10.3390/ma10020181] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Revised: 02/08/2017] [Accepted: 02/09/2017] [Indexed: 11/16/2022]
Abstract
The chemical reduction of ferric acetylacetonate (Fe(acac)3) and platinum acetylacetonate (Pt(acac)2) using the polyol solvent of phenyl ether as an agent as well as an effective surfactant has successfully yielded monodispersive FePt nanoparticles (NPs) with a hydrophobic ligand and a size of approximately 3.8 nm. The present FePt NPs synthesized using oleic acid and oleylamine as the stabilizers under identical conditions were achieved with a simple method. The surface modification of FePt NPs by using mercaptoacetic acid (thiol) as a phase transfer reagent through ligand exchange turned the NPs hydrophilic, and the FePt NPs were water-dispersible. The hydrophilic NPs indicated slight agglomeration which was observed by transmission electron microscopy images. The thiol functional group bond to the FePt atoms of the surface was confirmed by Fourier transform infrared spectroscopy (FTIR) spectra. The water-dispersible FePt NPs employed as a heating agent could reach the requirement of biocompatibility and produce a sufficient heat response of 45 °C for magnetically induced hyperthermia in tumor treatment fields.
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171
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Chen R, Canales A, Anikeeva P. Neural Recording and Modulation Technologies. NATURE REVIEWS. MATERIALS 2017; 2:16093. [PMID: 31448131 PMCID: PMC6707077 DOI: 10.1038/natrevmats.2016.93] [Citation(s) in RCA: 289] [Impact Index Per Article: 41.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Within the mammalian nervous system, billions of neurons connected by quadrillions of synapses exchange electrical, chemical and mechanical signals. Disruptions to this network manifest as neurological or psychiatric conditions. Despite decades of neuroscience research, our ability to treat or even to understand these conditions is limited by the tools capable of probing the signalling complexity of the nervous system. Although orders of magnitude smaller and computationally faster than neurons, conventional substrate-bound electronics do not address the chemical and mechanical properties of neural tissue. This mismatch results in a foreign-body response and the encapsulation of devices by glial scars, suggesting that the design of an interface between the nervous system and a synthetic sensor requires additional materials innovation. Advances in genetic tools for manipulating neural activity have fuelled the demand for devices capable of simultaneous recording and controlling individual neurons at unprecedented scales. Recently, flexible organic electronics and bio- and nanomaterials have been developed for multifunctional and minimally invasive probes for long-term interaction with the nervous system. In this Review, we discuss the design lessons from the quarter-century-old field of neural engineering, highlight recent materials-driven progress in neural probes, and look at emergent directions inspired by the principles of neural transduction.
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Affiliation(s)
- Ritchie Chen
- Department of Materials Science and Engineering, and Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Andres Canales
- Department of Materials Science and Engineering, and Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Polina Anikeeva
- Department of Materials Science and Engineering, and Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA, USA
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172
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Sun X, Zhou Z, Man C, Leung A, Ngan A. Cell-structure specific necrosis by optical-trap induced intracellular nuclear oscillation. J Mech Behav Biomed Mater 2017; 66:58-67. [DOI: 10.1016/j.jmbbm.2016.10.020] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Revised: 10/25/2016] [Accepted: 10/27/2016] [Indexed: 12/22/2022]
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173
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Smart materials on the way to theranostic nanorobots: Molecular machines and nanomotors, advanced biosensors, and intelligent vehicles for drug delivery. Biochim Biophys Acta Gen Subj 2017; 1861:1530-1544. [PMID: 28130158 DOI: 10.1016/j.bbagen.2017.01.027] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2016] [Revised: 01/19/2017] [Accepted: 01/20/2017] [Indexed: 12/25/2022]
Abstract
BACKGROUND Theranostics, a fusion of two key parts of modern medicine - diagnostics and therapy of the organism's disorders, promises to bring the efficacy of medical treatment to a fundamentally new level and to become the basis of personalized medicine. Extrapolating today's progress in the field of smart materials to the long-run prospect, we can imagine future intelligent agents capable of performing complex analysis of different physiological factors inside the living organism and implementing a built-in program thereby triggering a series of therapeutic actions. These agents, by analogy with their macroscopic counterparts, can be called nanorobots. It is quite obscure what these devices are going to look like but they will be more or less based on today's achievements in nanobiotechnology. SCOPE OF REVIEW The present Review is an attempt to systematize highly diverse nanomaterials, which may potentially serve as modules for theranostic nanorobotics, e.g., nanomotors, sensing units, and payload carriers. MAJOR CONCLUSIONS Biocomputing-based sensing, externally actuated or chemically "fueled" autonomous movement, swarm inter-agent communication behavior are just a few inspiring examples that nanobiotechnology can offer today for construction of truly intelligent drug delivery systems. GENERAL SIGNIFICANCE The progress of smart nanomaterials toward fully autonomous drug delivery nanorobots is an exciting prospect for disease treatment. Synergistic combination of the available approaches and their further development may produce intelligent drugs of unmatched functionality.
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174
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Vemulkar T, Welbourne EN, Mansell R, Petit DCMC, Cowburn RP. The mechanical response in a fluid of synthetic antiferromagnetic and ferrimagnetic microdiscs with perpendicular magnetic anisotropy. APPLIED PHYSICS LETTERS 2017; 110:042402. [PMID: 28190886 PMCID: PMC5272821 DOI: 10.1063/1.4974211] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Accepted: 01/04/2017] [Indexed: 06/06/2023]
Abstract
In this article, we demonstrate the magneto-mechanic behavior in a fluid environment of perpendicularly magnetized microdiscs with antiferromagnetic interlayer coupling. When suspended in a fluid and under the influence of a simple uniaxial applied magnetic field sequence, the microdiscs mechanically rotate to access the magnetic saturation processes that are either that of the easy axis, hard axis, or in-between the two, in order to lower their energy. Further, these transitions enable the magnetic particles to form reconfigurable magnetic chains, and transduce torque from uniaxial applied fields. These microdiscs offer an attractive platform for the fabrication of fluid based micro- and nanodevices, and dynamically self assembled complex architectures.
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Affiliation(s)
- T Vemulkar
- Cavendish Laboratory, University of Cambridge , JJ Thomson Avenue, Cambridge CB3 0HE, United Kingdom
| | - E N Welbourne
- Cavendish Laboratory, University of Cambridge , JJ Thomson Avenue, Cambridge CB3 0HE, United Kingdom
| | - R Mansell
- Cavendish Laboratory, University of Cambridge , JJ Thomson Avenue, Cambridge CB3 0HE, United Kingdom
| | - D C M C Petit
- Cavendish Laboratory, University of Cambridge , JJ Thomson Avenue, Cambridge CB3 0HE, United Kingdom
| | - R P Cowburn
- Cavendish Laboratory, University of Cambridge , JJ Thomson Avenue, Cambridge CB3 0HE, United Kingdom
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175
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Zhao M, Chen L, Chen W, Meng Z, Hu K, Du S, Zhang L, Yin L, Wu B, Guan YQ. Packaging cordycepin phycocyanin micelles for the inhibition of brain cancer. J Mater Chem B 2017; 5:6016-6026. [DOI: 10.1039/c7tb00994a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
A novel small size and electroneutral Phy–Dex–Cord micelles was successfully developed, which can be delivered to tumor cells and inhibit the brain tumor.
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Affiliation(s)
- Mengyang Zhao
- School of Life Science
- South China Normal University
- Guangzhou 510631
- China
| | - Liyi Chen
- School of Life Science
- South China Normal University
- Guangzhou 510631
- China
| | - Wuya Chen
- School of Life Science
- South China Normal University
- Guangzhou 510631
- China
| | - Zhan Meng
- School of Life Science
- South China Normal University
- Guangzhou 510631
- China
| | - Kaikai Hu
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science
- College of Biophotonics
- South China Normal University
- Guangzhou 510631
- China
| | - Shiwei Du
- School of Life Science
- South China Normal University
- Guangzhou 510631
- China
| | - Lingkun Zhang
- School of Life Science
- South China Normal University
- Guangzhou 510631
- China
| | - Liang Yin
- School of Life Science
- South China Normal University
- Guangzhou 510631
- China
| | - Baoyan Wu
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science
- College of Biophotonics
- South China Normal University
- Guangzhou 510631
- China
| | - Yan-Qing Guan
- School of Life Science
- South China Normal University
- Guangzhou 510631
- China
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science
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176
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Coïsson M, Barrera G, Celegato F, Martino L, Kane SN, Raghuvanshi S, Vinai F, Tiberto P. Hysteresis losses and specific absorption rate measurements in magnetic nanoparticles for hyperthermia applications. Biochim Biophys Acta Gen Subj 2016; 1861:1545-1558. [PMID: 27986628 DOI: 10.1016/j.bbagen.2016.12.006] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Revised: 12/07/2016] [Accepted: 12/08/2016] [Indexed: 01/09/2023]
Abstract
BACKGROUND Magnetic hysteresis loops areas and hyperthermia on magnetic nanoparticles have been studied with the aim of providing reliable and reproducible methods of measuring the specific absorption rate (SAR). METHODS The SAR of Fe3O4 nanoparticles with two different mean sizes, and Ni1-xZnxFe2O4 ferrites with 0 ≤ x ≤ 0.8 has been measured with three approaches: static hysteresis loops areas, dynamic hysteresis loops areas and hyperthermia of a water solution. For dynamic loops and thermometric measurements, specific experimental setups have been developed, that operate at comparable frequencies (≈ 69kHz and ≈ 100kHz respectively) and rf magnetic field peak values (up to 100mT). The hyperthermia setup has been fully modelled to provide a direct measurement of the SAR of the magnetic nanoparticles by taking into account the heat exchange with the surrounding environment in non-adiabatic conditions and the parasitic heating of the water due to ionic currents. RESULTS Dynamic hysteresis loops are shown to provide an accurate determination of the SAR except for superparamagnetic samples, where the boundary with a blocked regime could be crossed in dynamic conditions. Static hysteresis loops consistently underestimate the specific absorption rate but can be used to select the most promising samples. CONCLUSIONS A means of reliably measure SAR of magnetic nanoparticles by different approaches for hyperthermia applications is presented and its validity discussed by comparing different methods. GENERAL SIGNIFICANCE This work fits within the general subject of metrological traceability in medicine with a specific focus on magnetic hyperthermia. This article is part of a Special Issue entitled "Recent Advances in Bionanomaterials" Guest Editor: Dr. Marie-Louise Saboungi and Dr. Samuel D. Bader.
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Affiliation(s)
- Marco Coïsson
- INRIM, strada delle Cacce 91, Torino TO 10135, Italy.
| | | | | | - Luca Martino
- INRIM, strada delle Cacce 91, Torino TO 10135, Italy
| | | | | | - Franco Vinai
- INRIM, strada delle Cacce 91, Torino TO 10135, Italy
| | - Paola Tiberto
- INRIM, strada delle Cacce 91, Torino TO 10135, Italy
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177
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Barrera G, Serpe L, Celegato F, Coїsson M, Martina K, Canaparo R, Tiberto P. Surface modification and cellular uptake evaluation of Au-coated Ni 80Fe 20 nanodiscs for biomedical applications. Interface Focus 2016; 6:20160052. [PMID: 27920892 DOI: 10.1098/rsfs.2016.0052] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
A nanofabrication technique based on self-assembling of polystyrene nanospheres is used to obtain magnetic Ni80Fe20 nanoparticles with a disc shape. The free-standing nanodiscs (NDs) have diameter and thickness of about 630 nm and 30 nm, respectively. The versatility of fabrication technique allows one to cover the ND surface with a protective gold layer with a thickness of about 5 nm. Magnetization reversal has been studied by room-temperature hysteresis loop measurements in water-dispersed free-standing NDs. The reversal shows zero remanence, high susceptibility and nucleation/annihilation fields due to spin vortex formation. In order to investigate their potential use in biomedical applications, the effect of NDs coated with or without the protective gold layer on cell growth has been evaluated. A successful attempt to bind cysteine-fluorescein isothiocyanate (FITC) derivative to the gold surface of magnetic NDs has been exploited to verify the intracellular uptake of the NDs by cytofluorimetric analysis using the FITC conjugate.
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Affiliation(s)
- Gabriele Barrera
- Nanoscience and Material Division , INRiM , 10135 Torino , Italy
| | - Loredana Serpe
- Department of Drug Science and Technology , University of Turin , 10125 Torino , Italy
| | | | - Marco Coїsson
- Nanoscience and Material Division , INRiM , 10135 Torino , Italy
| | - Katia Martina
- Department of Drug Science and Technology , University of Turin , 10125 Torino , Italy
| | - Roberto Canaparo
- Department of Drug Science and Technology , University of Turin , 10125 Torino , Italy
| | - Paola Tiberto
- Nanoscience and Material Division , INRiM , 10135 Torino , Italy
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178
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Zamay TN, Zamay GS, Belyanina IV, Zamay SS, Denisenko VV, Kolovskaya OS, Ivanchenko TI, Grigorieva VL, Garanzha IV, Veprintsev DV, Glazyrin YE, Shabanov AV, Prinz VY, Seleznev VA, Sokolov AE, Prokopenko VS, Kim PD, Gargaun A, Berezovski MV, Zamay AS. Noninvasive Microsurgery Using Aptamer-Functionalized Magnetic Microdisks for Tumor Cell Eradication. Nucleic Acid Ther 2016; 27:105-114. [PMID: 27923103 DOI: 10.1089/nat.2016.0634] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Magnetomechanical cell disruption using nano- and microsized structures is a promising biomedical technology used for noninvasive elimination of diseased cells. It applies alternating magnetic field (AMF) for ferromagnetic microdisks making them oscillate and causing cell membrane disruption with cell death followed by apoptosis. In this study, we functionalized the magnetic microdisks with cell-binding DNA aptamers and guided the microdisks to recognize cancerous cells in a mouse tumor in vivo. Only 10 min of the treatment with a 100 Hz AMF was enough to eliminate cancer cells from a malignant tumor. Our results demonstrate a good perspective of using aptamer-modified magnetic microdisks for noninvasive microsurgery for tumors.
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Affiliation(s)
- Tatiana N Zamay
- 1 Laboratory of Biomolecular and Medical Technologies, Krasnoyarsk State Medical University , Krasnoyarsk, Russia .,2 Siberian Federal University , Krasnoyarsk, Russia
| | - Galina S Zamay
- 1 Laboratory of Biomolecular and Medical Technologies, Krasnoyarsk State Medical University , Krasnoyarsk, Russia .,3 Krasnoyarsk Research Center, Siberian Branch of the Russian Academy of Sciences , Krasnoyarsk, Russia
| | - Irina V Belyanina
- 1 Laboratory of Biomolecular and Medical Technologies, Krasnoyarsk State Medical University , Krasnoyarsk, Russia .,2 Siberian Federal University , Krasnoyarsk, Russia
| | - Sergey S Zamay
- 3 Krasnoyarsk Research Center, Siberian Branch of the Russian Academy of Sciences , Krasnoyarsk, Russia
| | - Valery V Denisenko
- 3 Krasnoyarsk Research Center, Siberian Branch of the Russian Academy of Sciences , Krasnoyarsk, Russia .,4 Institute of Computational Modeling, Siberian Branch of the Russian Academy of Sciences , Krasnoyarsk, Russia
| | - Olga S Kolovskaya
- 1 Laboratory of Biomolecular and Medical Technologies, Krasnoyarsk State Medical University , Krasnoyarsk, Russia .,3 Krasnoyarsk Research Center, Siberian Branch of the Russian Academy of Sciences , Krasnoyarsk, Russia
| | - Tatiana I Ivanchenko
- 3 Krasnoyarsk Research Center, Siberian Branch of the Russian Academy of Sciences , Krasnoyarsk, Russia
| | - Valentina L Grigorieva
- 1 Laboratory of Biomolecular and Medical Technologies, Krasnoyarsk State Medical University , Krasnoyarsk, Russia .,2 Siberian Federal University , Krasnoyarsk, Russia
| | - Irina V Garanzha
- 2 Siberian Federal University , Krasnoyarsk, Russia .,3 Krasnoyarsk Research Center, Siberian Branch of the Russian Academy of Sciences , Krasnoyarsk, Russia
| | - Dmitry V Veprintsev
- 1 Laboratory of Biomolecular and Medical Technologies, Krasnoyarsk State Medical University , Krasnoyarsk, Russia .,3 Krasnoyarsk Research Center, Siberian Branch of the Russian Academy of Sciences , Krasnoyarsk, Russia
| | - Yury E Glazyrin
- 1 Laboratory of Biomolecular and Medical Technologies, Krasnoyarsk State Medical University , Krasnoyarsk, Russia
| | - Alexandr V Shabanov
- 3 Krasnoyarsk Research Center, Siberian Branch of the Russian Academy of Sciences , Krasnoyarsk, Russia
| | - Viktor Y Prinz
- 5 The Institute of Semiconductor Physics, Siberian Branch of the Russian Academy of Sciences , Novosibirsk, Russia
| | - Vladimir A Seleznev
- 5 The Institute of Semiconductor Physics, Siberian Branch of the Russian Academy of Sciences , Novosibirsk, Russia
| | - Alexey E Sokolov
- 6 Institute of Physics, Siberian Branch of the Russian Academy of Sciences , Krasnoyarsk, Russia
| | | | - Petr D Kim
- 3 Krasnoyarsk Research Center, Siberian Branch of the Russian Academy of Sciences , Krasnoyarsk, Russia
| | - Ana Gargaun
- 8 Department of Chemistry and Biomolecular Sciences, University of Ottawa , Ottawa, Canada
| | - Maxim V Berezovski
- 8 Department of Chemistry and Biomolecular Sciences, University of Ottawa , Ottawa, Canada
| | - Anna S Zamay
- 1 Laboratory of Biomolecular and Medical Technologies, Krasnoyarsk State Medical University , Krasnoyarsk, Russia .,3 Krasnoyarsk Research Center, Siberian Branch of the Russian Academy of Sciences , Krasnoyarsk, Russia
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179
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Zablotskii V, Polyakova T, Lunov O, Dejneka A. How a High-Gradient Magnetic Field Could Affect Cell Life. Sci Rep 2016; 6:37407. [PMID: 27857227 PMCID: PMC5114642 DOI: 10.1038/srep37407] [Citation(s) in RCA: 113] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Accepted: 10/28/2016] [Indexed: 12/26/2022] Open
Abstract
The biological effects of high-gradient magnetic fields (HGMFs) have steadily gained the increased attention of researchers from different disciplines, such as cell biology, cell therapy, targeted stem cell delivery and nanomedicine. We present a theoretical framework towards a fundamental understanding of the effects of HGMFs on intracellular processes, highlighting new directions for the study of living cell machinery: changing the probability of ion-channel on/off switching events by membrane magneto-mechanical stress, suppression of cell growth by magnetic pressure, magnetically induced cell division and cell reprograming, and forced migration of membrane receptor proteins. By deriving a generalized form for the Nernst equation, we find that a relatively small magnetic field (approximately 1 T) with a large gradient (up to 1 GT/m) can significantly change the membrane potential of the cell and thus have a significant impact on not only the properties and biological functionality of cells but also cell fate.
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Affiliation(s)
- Vitalii Zablotskii
- Department of Optical and Biophysical Systems, Institute of Physics of the Academy of Sciences of the Czech Republic, Prague, 18221, Czech Republic
| | - Tatyana Polyakova
- Department of Optical and Biophysical Systems, Institute of Physics of the Academy of Sciences of the Czech Republic, Prague, 18221, Czech Republic
| | - Oleg Lunov
- Department of Optical and Biophysical Systems, Institute of Physics of the Academy of Sciences of the Czech Republic, Prague, 18221, Czech Republic
| | - Alexandr Dejneka
- Department of Optical and Biophysical Systems, Institute of Physics of the Academy of Sciences of the Czech Republic, Prague, 18221, Czech Republic
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180
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Master AM, Williams PN, Pothayee N, Pothayee N, Zhang R, Vishwasrao HM, Golovin YI, Riffle JS, Sokolsky M, Kabanov AV. Remote Actuation of Magnetic Nanoparticles For Cancer Cell Selective Treatment Through Cytoskeletal Disruption. Sci Rep 2016; 6:33560. [PMID: 27644858 PMCID: PMC5028756 DOI: 10.1038/srep33560] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Accepted: 08/30/2016] [Indexed: 12/29/2022] Open
Abstract
Motion of micron and sub-micron size magnetic particles in alternating magnetic fields can activate mechanosensitive cellular functions or physically destruct cancer cells. However, such effects are usually observed with relatively large magnetic particles (>250 nm) that would be difficult if at all possible to deliver to remote sites in the body to treat disease. Here we show a completely new mechanism of selective toxicity of superparamagnetic nanoparticles (SMNP) of 7 to 8 nm in diameter to cancer cells. These particles are coated by block copolymers, which facilitates their entry into the cells and clustering in the lysosomes, where they are then magneto-mechanically actuated by remotely applied alternating current (AC) magnetic fields of very low frequency (50 Hz). Such fields and treatments are safe for surrounding tissues but produce cytoskeletal disruption and subsequent death of cancer cells while leaving healthy cells intact.
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Affiliation(s)
- Alyssa M Master
- Center for Nanotechnology in Drug Delivery, University of North Carolina, Chapel Hill, NC, USA
| | - Philise N Williams
- Center for Nanotechnology in Drug Delivery, University of North Carolina, Chapel Hill, NC, USA.,Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE, USA
| | - Nikorn Pothayee
- Macromolecules and Interfaces Institute, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA
| | - Nipon Pothayee
- Macromolecules and Interfaces Institute, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA
| | - Rui Zhang
- Macromolecules and Interfaces Institute, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA
| | - Hemant M Vishwasrao
- Center for Nanotechnology in Drug Delivery, University of North Carolina, Chapel Hill, NC, USA.,Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE, USA
| | - Yuri I Golovin
- Nanocenter, G. R. Derzhavin Tambov State University, Tambov, 392000, Russian Federation.,Laboratory of Chemical Design of Bionanomaterials, Faculty of Chemistry, M. V. Lomonosov Moscow State University, Moscow, 117234, Russian Federation
| | - Judy S Riffle
- Macromolecules and Interfaces Institute, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA
| | - Marina Sokolsky
- Center for Nanotechnology in Drug Delivery, University of North Carolina, Chapel Hill, NC, USA
| | - Alexander V Kabanov
- Center for Nanotechnology in Drug Delivery, University of North Carolina, Chapel Hill, NC, USA
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181
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Chen C, Chen L, Wang P, Wu LF, Song T. Magnetically-induced elimination of Staphylococcus aureus by magnetotactic bacteria under a swing magnetic field. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2016; 13:363-370. [PMID: 27562212 DOI: 10.1016/j.nano.2016.08.021] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2016] [Revised: 07/16/2016] [Accepted: 08/11/2016] [Indexed: 11/27/2022]
Abstract
This study aims to explore a therapeutic tool that kills pathogens by using mechanical force other than temperature. We fabricated a device that generates a swing magnetic field (sMF) with low-heat production and then evaluated the killing effect of magnetotactic bacteria MO-1 on Staphylococcus aureus (S. aureus) under the sMF. S. aureus was only killed under the sMF when attached to MO-1 cells. The killing efficiency increased with increasing attachment ratio of MO-1 cells to S. aureus. Treatment with antibody-coated MO-1 cells under the sMF improved the healing of S. aureus-infected wound. The theoretical analysis demonstrated that MO-1 cells generated a mechanical force of approximately 8kPa under the sMF, thereby exerting on S. aureus and inducing cell death. The proposed platform, which uses magnetotactic bacteria under the sMF to generate mechanical force, provides a basis for development of therapeutic tools to treat infectious diseases.
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Affiliation(s)
- Changyou Chen
- Beijing Key Laboratory of Bioelectromagnetism, Institute of Electrical Engineering, Chinese Academy of Sciences, No. 6 Bei'er Tiao Zhongguancun HaiDian, Beijing, 100190, China; University of Chinese Academy of Sciences, No.19A Yuquanlu, Beijing, 100049, China; France-China Bio-Mineralization and Nano-Structures Laboratory, No. 6 Bei'er Tiao Zhongguancun HaiDian, Beijing, 100190, China.
| | - Linjie Chen
- Beijing Key Laboratory of Bioelectromagnetism, Institute of Electrical Engineering, Chinese Academy of Sciences, No. 6 Bei'er Tiao Zhongguancun HaiDian, Beijing, 100190, China; University of Chinese Academy of Sciences, No.19A Yuquanlu, Beijing, 100049, China; France-China Bio-Mineralization and Nano-Structures Laboratory, No. 6 Bei'er Tiao Zhongguancun HaiDian, Beijing, 100190, China.
| | - Pingping Wang
- Beijing Key Laboratory of Bioelectromagnetism, Institute of Electrical Engineering, Chinese Academy of Sciences, No. 6 Bei'er Tiao Zhongguancun HaiDian, Beijing, 100190, China; France-China Bio-Mineralization and Nano-Structures Laboratory, No. 6 Bei'er Tiao Zhongguancun HaiDian, Beijing, 100190, China.
| | - Long-Fei Wu
- France-China Bio-Mineralization and Nano-Structures Laboratory, No. 6 Bei'er Tiao Zhongguancun HaiDian, Beijing, 100190, China; Laboratoire de Chimie Bactérienne, UMR7283, Aix-Marseille University, Institut de Microbiologie de la Méditerranée, CNRS, Marseille, France.
| | - Tao Song
- Beijing Key Laboratory of Bioelectromagnetism, Institute of Electrical Engineering, Chinese Academy of Sciences, No. 6 Bei'er Tiao Zhongguancun HaiDian, Beijing, 100190, China; University of Chinese Academy of Sciences, No.19A Yuquanlu, Beijing, 100049, China; France-China Bio-Mineralization and Nano-Structures Laboratory, No. 6 Bei'er Tiao Zhongguancun HaiDian, Beijing, 100190, China.
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182
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Kim SK, Yoo MW, Lee J, Lee JH, Kim MK. Resonant vortex-core reversal in magnetic nano-spheres as robust mechanism of efficient energy absorption and emission. Sci Rep 2016; 6:31513. [PMID: 27531408 PMCID: PMC4987621 DOI: 10.1038/srep31513] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Accepted: 07/21/2016] [Indexed: 11/09/2022] Open
Abstract
We report on novel vortex-core reversal dynamics in nano-spheres of single-vortex spin configuration as revealed by micromagnetic simulations combined with analytical derivations. When the frequency of an AC magnetic field is tuned to the frequency of the vortex-core precession around the direction of a given static field, oscillatory vortex-core reversals occur, and additionally, the frequency is found to change with both the strength of the applied AC field and the particle size. Such resonant vortex-core reversals in nano-spheres may provide a new and efficient means of energy absorption by, and emission from, magnetic nanoparticles, which system can be effectively implemented in bio-applications such as magnetic hyperthermia.
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Affiliation(s)
- Sang-Koog Kim
- National Creative Research Initiative Center for Spin Dynamics and Spin-Wave Devices, Nanospinics Laboratory, Research Institute of Advanced Materials, Department of Materials Science and Engineering, Seoul National University, Seoul 151-744, South Korea
| | - Myoung-Woo Yoo
- National Creative Research Initiative Center for Spin Dynamics and Spin-Wave Devices, Nanospinics Laboratory, Research Institute of Advanced Materials, Department of Materials Science and Engineering, Seoul National University, Seoul 151-744, South Korea
| | - Jehyun Lee
- National Creative Research Initiative Center for Spin Dynamics and Spin-Wave Devices, Nanospinics Laboratory, Research Institute of Advanced Materials, Department of Materials Science and Engineering, Seoul National University, Seoul 151-744, South Korea
| | - Jae-Hyeok Lee
- National Creative Research Initiative Center for Spin Dynamics and Spin-Wave Devices, Nanospinics Laboratory, Research Institute of Advanced Materials, Department of Materials Science and Engineering, Seoul National University, Seoul 151-744, South Korea
| | - Min-Kwan Kim
- National Creative Research Initiative Center for Spin Dynamics and Spin-Wave Devices, Nanospinics Laboratory, Research Institute of Advanced Materials, Department of Materials Science and Engineering, Seoul National University, Seoul 151-744, South Korea
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183
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Vomir M, Turnbull R, Birced I, Parreira P, MacLaren D, Lee SL, André P, Bigot JY. Dynamical Torque in CoxFe3-xO4 Nanocube Thin Films Characterized by Femtosecond Magneto-Optics: A π-Shift Control of the Magnetization Precession. NANO LETTERS 2016; 16:5291-5297. [PMID: 27398653 PMCID: PMC4981894 DOI: 10.1021/acs.nanolett.6b02618] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Indexed: 06/06/2023]
Abstract
For spintronic devices excited by a sudden magnetic or optical perturbation, the torque acting on the magnetization plays a key role in its precession and damping. However, the torque itself can be a dynamical quantity via the time-dependent anisotropies of the system. A challenging problem for applications is then to disentangle the relative importance of various sources of anisotropies in the dynamical torque, such as the dipolar field, the crystal structure or the shape of the particular interacting magnetic nanostructures. Here, we take advantage of a range of colloidal cobalt ferrite nanocubes assembled in 2D thin films under controlled magnetic fields to demonstrate that the phase, ϕPrec, of the precession carries a strong signature of the dynamical anisotropies. Performing femtosecond magneto-optics, we show that ϕPrec displays a π-shift for a particular angle θH of an external static magnetic field, H. θH is controlled with the cobalt concentration, the laser intensity, as well as the interparticle interactions. Importantly, it is shown that the shape anisotropy, which strongly departs from those of equivalent bulk thin films or individual noninteracting nanoparticles, reveals the essential role played by the interparticle collective effects. This work shows the reliability of a noninvasive optical approach to characterize the dynamical torque in high density magnetic recording media made of organized and interacting nanoparticles.
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Affiliation(s)
- Mircea Vomir
- Institut de Physique et Chimie des Matériaux de
Strasbourg, UMR 7504, CNRS, Université
de Strasbourg, BP 43,
23 rue du Loess, 67034 Strasbourg Cedex 02, France
| | - Robin Turnbull
- SUPA, School
of Physics and Astronomy, University of
St. Andrews, St Andrews KY16 9SS, United Kingdom
| | - Ipek Birced
- SUPA, School
of Physics and Astronomy, University of
St. Andrews, St Andrews KY16 9SS, United Kingdom
| | - Pedro Parreira
- SUPA, Department
of Physics and Astronomy, University of
Glasgow, Glasgow G12 8QQ, United Kingdom
| | - Donald
A. MacLaren
- SUPA, Department
of Physics and Astronomy, University of
Glasgow, Glasgow G12 8QQ, United Kingdom
| | - Stephen L. Lee
- SUPA, School
of Physics and Astronomy, University of
St. Andrews, St Andrews KY16 9SS, United Kingdom
| | - Pascal André
- SUPA, School
of Physics and Astronomy, University of
St. Andrews, St Andrews KY16 9SS, United Kingdom
- Elements
Chemistry Laboratory, RIKEN, Wako 351-0198, Japan
- Department of Physics, CNRS-Ewha International
Research Center, Ewha W. University, Seoul 120-750, Republic of Korea
| | - Jean-Yves Bigot
- Institut de Physique et Chimie des Matériaux de
Strasbourg, UMR 7504, CNRS, Université
de Strasbourg, BP 43,
23 rue du Loess, 67034 Strasbourg Cedex 02, France
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184
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Chen Z, Ji H, Liu C, Bing W, Wang Z, Qu X. A Multinuclear Metal Complex Based DNase-Mimetic Artificial Enzyme: Matrix Cleavage for Combating Bacterial Biofilms. Angew Chem Int Ed Engl 2016; 55:10732-6. [PMID: 27484616 DOI: 10.1002/anie.201605296] [Citation(s) in RCA: 158] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Revised: 07/04/2016] [Indexed: 12/18/2022]
Abstract
Extracellular DNA (eDNA) is an essential structural component during biofilm formation, including initial bacterial adhesion, subsequent development, and final maturation. Herein, the construction of a DNase-mimetic artificial enzyme (DMAE) for anti-biofilm applications is described. By confining passivated gold nanoparticles with multiple cerium(IV) complexes on the surface of colloidal magnetic Fe3 O4 /SiO2 core/shell particles, a robust and recoverable artificial enzyme with DNase-like activity was obtained, which exhibited high cleavage ability towards both model substrates and eDNA. Compared to the high environmental sensitivity of natural DNase in anti-biofilm applications, DMAE exhibited a much better operational stability and easier recoverability. When DMAE was coated on substratum surfaces, biofilm formation was inhibited for prolonged periods of time, and the DMAE excelled in the dispersion of established biofilms of various ages. Finally, the presence of DMAE remarkably potentiated the efficiency of traditional antibiotics to kill biofilm-encased bacteria and eradiate biofilms.
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Affiliation(s)
- Zhaowei Chen
- Laboratory of Chemical Biology and State Key Laboratory of Rare Earth Resources Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China.,University of Chinese Academy of Sciences, Beijing, 100039, China.,Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, NC, 27695, USA
| | - Haiwei Ji
- Laboratory of Chemical Biology and State Key Laboratory of Rare Earth Resources Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China.,University of Chinese Academy of Sciences, Beijing, 100039, China
| | - Chaoqun Liu
- Laboratory of Chemical Biology and State Key Laboratory of Rare Earth Resources Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China.,University of Chinese Academy of Sciences, Beijing, 100039, China
| | - Wei Bing
- Laboratory of Chemical Biology and State Key Laboratory of Rare Earth Resources Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China.,University of Chinese Academy of Sciences, Beijing, 100039, China
| | - Zhenzhen Wang
- Laboratory of Chemical Biology and State Key Laboratory of Rare Earth Resources Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China.,University of Chinese Academy of Sciences, Beijing, 100039, China
| | - Xiaogang Qu
- Laboratory of Chemical Biology and State Key Laboratory of Rare Earth Resources Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China.
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185
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Chen Z, Ji H, Liu C, Bing W, Wang Z, Qu X. A Multinuclear Metal Complex Based DNase-Mimetic Artificial Enzyme: Matrix Cleavage for Combating Bacterial Biofilms. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201605296] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Zhaowei Chen
- Laboratory of Chemical Biology and State Key Laboratory of Rare Earth Resources Utilization; Changchun Institute of Applied Chemistry; Chinese Academy of Sciences; Changchun Jilin 130022 China
- University of Chinese Academy of Sciences; Beijing 100039 China
- Joint Department of Biomedical Engineering; University of North Carolina at Chapel Hill and North Carolina State University; Raleigh NC 27695 USA
| | - Haiwei Ji
- Laboratory of Chemical Biology and State Key Laboratory of Rare Earth Resources Utilization; Changchun Institute of Applied Chemistry; Chinese Academy of Sciences; Changchun Jilin 130022 China
- University of Chinese Academy of Sciences; Beijing 100039 China
| | - Chaoqun Liu
- Laboratory of Chemical Biology and State Key Laboratory of Rare Earth Resources Utilization; Changchun Institute of Applied Chemistry; Chinese Academy of Sciences; Changchun Jilin 130022 China
- University of Chinese Academy of Sciences; Beijing 100039 China
| | - Wei Bing
- Laboratory of Chemical Biology and State Key Laboratory of Rare Earth Resources Utilization; Changchun Institute of Applied Chemistry; Chinese Academy of Sciences; Changchun Jilin 130022 China
- University of Chinese Academy of Sciences; Beijing 100039 China
| | - Zhenzhen Wang
- Laboratory of Chemical Biology and State Key Laboratory of Rare Earth Resources Utilization; Changchun Institute of Applied Chemistry; Chinese Academy of Sciences; Changchun Jilin 130022 China
- University of Chinese Academy of Sciences; Beijing 100039 China
| | - Xiaogang Qu
- Laboratory of Chemical Biology and State Key Laboratory of Rare Earth Resources Utilization; Changchun Institute of Applied Chemistry; Chinese Academy of Sciences; Changchun Jilin 130022 China
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186
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Kilinc D, Dennis CL, Lee GU. Bio-Nano-Magnetic Materials for Localized Mechanochemical Stimulation of Cell Growth and Death. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:5672-80. [PMID: 26780501 PMCID: PMC5536250 DOI: 10.1002/adma.201504845] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2015] [Revised: 11/12/2015] [Indexed: 05/16/2023]
Abstract
Magnetic nanoparticles are promising new tools for therapeutic applications, such as magnetic nanoparticle hyperthermia therapy and targeted drug delivery. Recent in vitro studies have demonstrated that a force application with magnetic tweezers can also affect cell fate, suggesting a therapeutic potential for magnetically modulated mechanical stimulation. The magnetic properties of nanoparticles that induce physical responses and the subtle responses that result from mechanically induced membrane damage and/or intracellular signaling are evaluated. Magnetic particles with various physical, geometric, and magnetic properties and specific functionalization can now be used to apply mechanical force to specific regions of cells, which permit the modulation of cellular behavior through the use of spatially and time controlled magnetic fields. On one hand, mechanochemical stimulation has been used to direct the outgrowth on neuronal growth cones, indicating a therapeutic potential for neural repair. On the other hand, it has been used to kill cancer cells that preferentially express specific receptors. Advances made in the synthesis and characterization of magnetic nanomaterials and a better understanding of cellular mechanotransduction mechanisms may support the translation of mechanochemical stimulation into the clinic as an emerging therapeutic approach.
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Affiliation(s)
- Devrim Kilinc
- Bionanosciences Lab, School of Chemistry and Chemical Biology, UCD
Conway Institute of Biomolecular and Biomedical Research, University College Dublin,
Belfield, Dublin 4, Ireland
| | - Cindi L. Dennis
- Material Measurement Laboratory, National Institute of Standards and
Technology, 100 Bureau Drive, Gaithersburg, MD 20899–8552, USA
| | - Gil U. Lee
- Bionanosciences Lab, School of Chemistry and Chemical Biology, UCD
Conway Institute of Biomolecular and Biomedical Research, University College Dublin,
Belfield, Dublin 4, Ireland
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187
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Abstract
Nanoimprint lithography has attracted considerable attention in academic and industrial fields as one of the most prominent lithographic techniques for the fabrication of the nanoscale devices. Effectively controllable shapes of fabricated elements, extremely high resolution, and cost-effectiveness of this especial lithographic system have shown unlimited potential to be utilized for practical applications. In the past decade, many different lithographic techniques have been developed such as electron beam lithography, photolithography, and nanoimprint lithography. Among them, nanoimprint lithography has proven to have not only various advantages that other lithographic techniques have but also potential to minimize the limitations of current lithographic techniques. In this review, we summarize current lithography techniques and, furthermore, investigate the nanoimprint lithography in detail in particular focusing on the types of molds. Nanoimprint lithography can be categorized into three different techniques (hard-mold, soft-mold, and hybrid nanoimprint) depending upon the molds for imprint with different advantages and disadvantages. With numerous studies and improvements, nanoimprint lithography has shown great potential which maximizes its effectiveness in patterning by minimizing its limitations. This technique will surely be the next generation lithographic technique which will open the new paradigm for the patterning and fabrication in nanoscale devices in industry.
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188
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Thorat ND, Bohara RA, Malgras V, Tofail SAM, Ahamad T, Alshehri SM, Wu KCW, Yamauchi Y. Multimodal Superparamagnetic Nanoparticles with Unusually Enhanced Specific Absorption Rate for Synergetic Cancer Therapeutics and Magnetic Resonance Imaging. ACS APPLIED MATERIALS & INTERFACES 2016; 8:14656-64. [PMID: 27197993 DOI: 10.1021/acsami.6b02616] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Superparamagnetic nanoparticles (SPMNPs) used for magnetic resonance imaging (MRI) and magnetic fluid hyperthermia (MFH) cancer therapy frequently face trade off between a high magnetization saturation and their good colloidal stability, high specific absorption rate (SAR), and most importantly biological compatibility. This necessitates the development of new nanomaterials, as MFH and MRI are considered to be one of the most promising combined noninvasive treatments. In the present study, we investigated polyethylene glycol (PEG) functionalized La1-xSrxMnO3 (LSMO) SPMNPs for efficient cancer hyperthermia therapy and MRI application. The superparamagnetic nanomaterial revealed excellent colloidal stability and biocompatibility. A high SAR of 390 W/g was observed due to higher colloidal stability leading to an increased Brownian and Neel's spin relaxation. Cell viability of PEG capped nanoparticles is up to 80% on different cell lines tested rigorously using different methods. PEG coating provided excellent hemocompatibility to human red blood cells as PEG functionalized SPMNPs reduced hemolysis efficiently compared to its uncoated counterpart. Magnetic fluid hyperthermia of SPMNPs resulted in cancer cell death up to 80%. Additionally, improved MRI characteristics were also observed for the PEG capped La1-xSrxMnO3 formulation in aqueous medium compared to the bare LSMO. Taken together, PEG capped SPMNPs can be useful for diagnosis, efficient magnetic fluid hyperthermia, and multimodal cancer treatment as the amphiphilicity of PEG can easily be utilized to encapsulate hydrophobic drugs.
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Affiliation(s)
- Nanasaheb D Thorat
- Centre for Interdisciplinary Research, D.Y. Patil University , Kolhapur-416006, India
- Department of Physics & Energy, University of Limerick , Limerick V94 T9PX, Ireland
- Materials & Surface Science Institute, University of Limerick , Limerick V94 T9PX, Ireland
| | - Raghvendra A Bohara
- Centre for Interdisciplinary Research, D.Y. Patil University , Kolhapur-416006, India
| | - Victor Malgras
- World Premier International (WPI) Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS) , 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Syed A M Tofail
- Department of Physics & Energy, University of Limerick , Limerick V94 T9PX, Ireland
- Materials & Surface Science Institute, University of Limerick , Limerick V94 T9PX, Ireland
| | - Tansir Ahamad
- Department of Chemistry, College of Science, King Saud University , Riyadh 11451, Saudi Arabia
| | - Saad M Alshehri
- Department of Chemistry, College of Science, King Saud University , Riyadh 11451, Saudi Arabia
| | - Kevin C-W Wu
- Department of Chemical Engineering, National Taiwan University , No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan
- Division of Medical Engineering Research, National Health Research Institutes , 35 Keyan Road, Zhunan, Miaoli County 350, Taiwan
| | - Yusuke Yamauchi
- World Premier International (WPI) Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS) , 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
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189
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Hapuarachchige S, Kato Y, Ngen EJ, Smith B, Delannoy M, Artemov D. Non-Temperature Induced Effects of Magnetized Iron Oxide Nanoparticles in Alternating Magnetic Field in Cancer Cells. PLoS One 2016; 11:e0156294. [PMID: 27244470 PMCID: PMC4887104 DOI: 10.1371/journal.pone.0156294] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Accepted: 05/12/2016] [Indexed: 01/08/2023] Open
Abstract
This paper reports the damaging effects of magnetic iron-oxide nanoparticles (MNP) on magnetically labeled cancer cells when subjected to oscillating gradients in a strong external magnetic field. Human breast cancer MDA-MB-231 cells were labeled with MNP, placed in the high magnetic field, and subjected to oscillating gradients generated by an imaging gradient system of a 9.4T preclinical MRI system. Changes in cell morphology and a decrease in cell viability were detected in cells treated with oscillating gradients. The cytotoxicity was determined qualitatively and quantitatively by microscopic imaging and cell viability assays. An approximately 26.6% reduction in cell viability was detected in magnetically labeled cells subjected to the combined effect of a static magnetic field and oscillating gradients. No reduction in cell viability was observed in unlabeled cells subjected to gradients, or in MNP-labeled cells in the static magnetic field. As no increase in local temperature was observed, the cell damage was not a result of hyperthermia. Currently, we consider the coherent motion of internalized and aggregated nanoparticles that produce mechanical moments as a potential mechanism of cell destruction. The formation and dynamics of the intracellular aggregates of nanoparticles were visualized by optical and transmission electron microscopy (TEM). The images revealed a rapid formation of elongated MNP aggregates in the cells, which were aligned with the external magnetic field. This strategy provides a new way to eradicate a specific population of MNP-labeled cells, potentially with magnetic resonance imaging guidance using standard MRI equipment, with minimal side effects for the host.
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Affiliation(s)
- Sudath Hapuarachchige
- Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, Maryland, 21205, United States of America
| | - Yoshinori Kato
- Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, Maryland, 21205, United States of America
- Department of Oncology, The Sidney Kimmel Comprehensive Cancer Center, The Johns Hopkins University School of Medicine, Baltimore, Maryland, 21287, United States of America
| | - Ethel J. Ngen
- Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, Maryland, 21205, United States of America
| | - Barbara Smith
- Cell Biology Imaging Facility, The Johns Hopkins University School of Medicine, Baltimore, Maryland, 21205, United States of America
| | - Michael Delannoy
- Cell Biology Imaging Facility, The Johns Hopkins University School of Medicine, Baltimore, Maryland, 21205, United States of America
| | - Dmitri Artemov
- Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, Maryland, 21205, United States of America
- Department of Oncology, The Sidney Kimmel Comprehensive Cancer Center, The Johns Hopkins University School of Medicine, Baltimore, Maryland, 21287, United States of America
- * E-mail:
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190
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Lee K, Yi Y, Yu Y. Remote Control of T Cell Activation Using Magnetic Janus Particles. Angew Chem Int Ed Engl 2016; 55:7384-7. [PMID: 27144475 DOI: 10.1002/anie.201601211] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Revised: 03/20/2016] [Indexed: 12/22/2022]
Abstract
We report a strategy for using magnetic Janus microparticles to control the stimulation of T cell signaling with single-cell precision. To achieve this, we designed Janus particles that are magnetically responsive on one hemisphere and stimulatory to T cells on the other side. By manipulating the rotation and locomotion of Janus particles under an external magnetic field, we could control the orientation of the particle-cell recognition and thereby the initiation of T cell activation. This study demonstrates a step towards employing anisotropic material properties of Janus particles to control single-cell activities without the need of complex magnetic manipulation devices.
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Affiliation(s)
- Kwahun Lee
- Department of Chemistry, Indiana University, 800 E. Kirkwood Ave., Bloomington, IN, 47405, USA
| | - Yi Yi
- Department of Chemistry, Indiana University, 800 E. Kirkwood Ave., Bloomington, IN, 47405, USA
| | - Yan Yu
- Department of Chemistry, Indiana University, 800 E. Kirkwood Ave., Bloomington, IN, 47405, USA.
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191
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Lee K, Yi Y, Yu Y. Remote Control of T Cell Activation Using Magnetic Janus Particles. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201601211] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Kwahun Lee
- Department of Chemistry; Indiana University; 800 E. Kirkwood Ave. Bloomington IN 47405 USA
| | - Yi Yi
- Department of Chemistry; Indiana University; 800 E. Kirkwood Ave. Bloomington IN 47405 USA
| | - Yan Yu
- Department of Chemistry; Indiana University; 800 E. Kirkwood Ave. Bloomington IN 47405 USA
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192
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Goiriena-Goikoetxea M, García-Arribas A, Rouco M, Svalov AV, Barandiaran JM. High-yield fabrication of 60 nm Permalloy nanodiscs in well-defined magnetic vortex state for biomedical applications. NANOTECHNOLOGY 2016; 27:175302. [PMID: 26984933 DOI: 10.1088/0957-4484/27/17/175302] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Permalloy disc structures in magnetic vortex state constitute a promising new type of magnetic nanoparticles for biomedical applications. They present high saturation magnetisation and lack of remanence, which ease the remote manipulation of the particles by magnetic fields and avoid the problem of agglomeration, respectively. Importantly, they are also endowed with the capability of low-frequency magneto-mechanical actuation. This effect has already been shown to produce cancer cell destruction using functionalized discs, about 1 μm in diameter, attached to the cell membrane. Here, Permalloy nanodiscs down to 60 nm in diameter are obtained by hole-mask colloidal lithography, which is proved to be a cost-effective method for the uniform patterning of large substrate areas, with a high production yield of nanostructures. The characterisation of the magnetic behaviour of the nanodiscs, complemented with micromagnetic simulations, confirms that they present a very well defined magnetic vortex configuration, unprecedented, to our knowledge, for nanostructures of this size prepared by a high-yield method. The successful detachment of the gold-covered nanodiscs from the substrate is also demonstrated by the use of sacrificial layers.
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Affiliation(s)
- M Goiriena-Goikoetxea
- Basque Center for Materials, Applications and Nanostructures, (BCMaterials), Parque Tecnológico Bizkaia, Building 500, Derio, Spain
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193
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Carrião MS, Bakuzis AF. Mean-field and linear regime approach to magnetic hyperthermia of core-shell nanoparticles: can tiny nanostructures fight cancer? NANOSCALE 2016; 8:8363-77. [PMID: 27046437 DOI: 10.1039/c5nr09093h] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
The phenomenon of heat dissipation by magnetic materials interacting with an alternating magnetic field, known as magnetic hyperthermia, is an emergent and promising therapy for many diseases, mainly cancer. Here, a magnetic hyperthermia model for core-shell nanoparticles is developed. The theoretical calculation, different from previous models, highlights the importance of heterogeneity by identifying the role of surface and core spins on nanoparticle heat generation. We found that the most efficient nanoparticles should be obtained by selecting materials to reduce the surface to core damping factor ratio, increasing the interface exchange parameter and tuning the surface to core anisotropy ratio for each material combination. From our results we propose a novel heat-based hyperthermia strategy with the focus on improving the heating efficiency of small sized nanoparticles instead of larger ones. This approach might have important implications for cancer treatment and could help improving clinical efficacy.
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Affiliation(s)
- Marcus S Carrião
- Instituto de Física, Universidade Federal de Goiás, Goiânia, GO 74690-900, Brazil.
| | - Andris F Bakuzis
- Instituto de Física, Universidade Federal de Goiás, Goiânia, GO 74690-900, Brazil.
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194
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Kim PD, Zamay SS, Zamay TN, Prokopenko VS, Kolovskaya OS, Zamay GS, Princ VY, Seleznev VA, Komonov AI, Spivak EA, Rudenko RY, Dubinina AV, Komarov AV, Denisenko VV, Komarova MA, Sokolov AE, Narodov AA, Zjivaev VP, Zamay AS. The antitumor effect of magnetic nanodisks and DNA aptamer conjugates. DOKL BIOCHEM BIOPHYS 2016; 466:66-9. [PMID: 27025491 DOI: 10.1134/s1607672916010154] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2015] [Indexed: 12/17/2022]
Abstract
Here we describe a method of forming large arrays (up to 10(9) pieces) of free magnetic Ni-nanodisks 50 nm thick coated on both sides with layers of 5 nm thick Au. The antitumor effect of the magnetic nickel gold-coated nanodisks and DNA aptamer conjugates was evaluated in vivo and in vitro. Under the influence of rotating magnetic field, the studied nanodisks can cause the death of Ehrlich ascites carcinoma cells.
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Affiliation(s)
- P D Kim
- Krasnoyarsk Research Center, Siberian Branch, Russian Academy of Sciences, Akademgorogok, Krasnoyarsk, 660036, Russia.,Institute of Semiconductor Physics, Siberian Branch, Russian Academy of Sciences, pr. Akademika Lavrent'eva 13, Novosibirsk, 630090, Russia
| | - S S Zamay
- Krasnoyarsk Research Center, Siberian Branch, Russian Academy of Sciences, Akademgorogok, Krasnoyarsk, 660036, Russia.,Voino-Yasenetskii State Medical University, Ministry of Health of the Russian Federation, ul. Partizana Zheleznyaka 1, Krasnoyarsk, Krasnoyarsk Krai, 660022, Russia.,Kirenskii Institute of Physics, Siberian Branch, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russia
| | - T N Zamay
- Voino-Yasenetskii State Medical University, Ministry of Health of the Russian Federation, ul. Partizana Zheleznyaka 1, Krasnoyarsk, Krasnoyarsk Krai, 660022, Russia. .,Siberian Federal University, Svobodnyi pr. 79, Krasnoyarsk, 660041, Russia.
| | - V S Prokopenko
- Astaf'ev Krasnoyarsk State Pedagogical University, ul. A. Lebedevoi 89, Krasnoyarsk, 660049, Russia
| | - O S Kolovskaya
- Krasnoyarsk Research Center, Siberian Branch, Russian Academy of Sciences, Akademgorogok, Krasnoyarsk, 660036, Russia.,Voino-Yasenetskii State Medical University, Ministry of Health of the Russian Federation, ul. Partizana Zheleznyaka 1, Krasnoyarsk, Krasnoyarsk Krai, 660022, Russia
| | - G S Zamay
- Krasnoyarsk Research Center, Siberian Branch, Russian Academy of Sciences, Akademgorogok, Krasnoyarsk, 660036, Russia.,Voino-Yasenetskii State Medical University, Ministry of Health of the Russian Federation, ul. Partizana Zheleznyaka 1, Krasnoyarsk, Krasnoyarsk Krai, 660022, Russia
| | - V Ya Princ
- Institute of Semiconductor Physics, Siberian Branch, Russian Academy of Sciences, pr. Akademika Lavrent'eva 13, Novosibirsk, 630090, Russia
| | - V A Seleznev
- Institute of Semiconductor Physics, Siberian Branch, Russian Academy of Sciences, pr. Akademika Lavrent'eva 13, Novosibirsk, 630090, Russia
| | - A I Komonov
- Institute of Semiconductor Physics, Siberian Branch, Russian Academy of Sciences, pr. Akademika Lavrent'eva 13, Novosibirsk, 630090, Russia
| | - E A Spivak
- Krasnoyarsk Research Center, Siberian Branch, Russian Academy of Sciences, Akademgorogok, Krasnoyarsk, 660036, Russia
| | - R Yu Rudenko
- Siberian Federal University, Svobodnyi pr. 79, Krasnoyarsk, 660041, Russia.,Kirenskii Institute of Physics, Siberian Branch, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russia
| | - A V Dubinina
- Krasnoyarsk Research Center, Siberian Branch, Russian Academy of Sciences, Akademgorogok, Krasnoyarsk, 660036, Russia.,Voino-Yasenetskii State Medical University, Ministry of Health of the Russian Federation, ul. Partizana Zheleznyaka 1, Krasnoyarsk, Krasnoyarsk Krai, 660022, Russia.,Siberian Federal University, Svobodnyi pr. 79, Krasnoyarsk, 660041, Russia
| | - A V Komarov
- Krasnoyarsk Research Center, Siberian Branch, Russian Academy of Sciences, Akademgorogok, Krasnoyarsk, 660036, Russia.,Siberian Federal University, Svobodnyi pr. 79, Krasnoyarsk, 660041, Russia
| | - V V Denisenko
- Krasnoyarsk Research Center, Siberian Branch, Russian Academy of Sciences, Akademgorogok, Krasnoyarsk, 660036, Russia.,Siberian Federal University, Svobodnyi pr. 79, Krasnoyarsk, 660041, Russia
| | - M A Komarova
- Krasnoyarsk Research Center, Siberian Branch, Russian Academy of Sciences, Akademgorogok, Krasnoyarsk, 660036, Russia.,Voino-Yasenetskii State Medical University, Ministry of Health of the Russian Federation, ul. Partizana Zheleznyaka 1, Krasnoyarsk, Krasnoyarsk Krai, 660022, Russia
| | - A E Sokolov
- Krasnoyarsk Research Center, Siberian Branch, Russian Academy of Sciences, Akademgorogok, Krasnoyarsk, 660036, Russia.,Kirenskii Institute of Physics, Siberian Branch, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russia
| | - A A Narodov
- Krasnoyarsk Research Center, Siberian Branch, Russian Academy of Sciences, Akademgorogok, Krasnoyarsk, 660036, Russia.,Voino-Yasenetskii State Medical University, Ministry of Health of the Russian Federation, ul. Partizana Zheleznyaka 1, Krasnoyarsk, Krasnoyarsk Krai, 660022, Russia
| | - V P Zjivaev
- Astaf'ev Krasnoyarsk State Pedagogical University, ul. A. Lebedevoi 89, Krasnoyarsk, 660049, Russia
| | - A S Zamay
- Krasnoyarsk Research Center, Siberian Branch, Russian Academy of Sciences, Akademgorogok, Krasnoyarsk, 660036, Russia.,Voino-Yasenetskii State Medical University, Ministry of Health of the Russian Federation, ul. Partizana Zheleznyaka 1, Krasnoyarsk, Krasnoyarsk Krai, 660022, Russia.,Institute of Chemistry and Chemical Technology, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russia
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195
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196
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Zhang J, Agramunt-Puig S, Del-Valle N, Navau C, Baró MD, Estradé S, Peiró F, Pané S, Nelson BJ, Sanchez A, Nogués J, Pellicer E, Sort J. Tailoring Staircase-like Hysteresis Loops in Electrodeposited Trisegmented Magnetic Nanowires: a Strategy toward Minimization of Interwire Interactions. ACS APPLIED MATERIALS & INTERFACES 2016; 8:4109-4117. [PMID: 26804742 DOI: 10.1021/acsami.5b11747] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A new strategy to minimize magnetic interactions between nanowires (NWs) dispersed in a fluid is proposed. Such a strategy consists of preparing trisegmented NWs containing two antiparallel ferromagnetic segments with dissimilar coercivity separated by a nonmagnetic spacer. The trisegmented NWs exhibit a staircase-like hysteresis loop with tunable shape that depends on the relative length of the soft- and hard-magnetic segments and the respective values of saturation magnetization. Such NWs are prepared by electrodepositing CoPt/Cu/Ni in a polycarbonate (PC) membrane. The antiparallel alignment is set by applying suitable magnetic fields while the NWs are still embedded in the PC membrane. Analytic calculations are used to demonstrate that the interaction magnetic energy from fully compensated trisegmented NWs with antiparallel alignment is reduced compared to a single-component NW with the same length or the trisegmented NWs with the two ferromagnetic counterparts parallel to each other. The proposed approach is appealing for the use of magnetic NWs in certain biological or catalytic applications where the aggregation of NWs is detrimental for optimized performance.
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Affiliation(s)
- Jin Zhang
- Departament de Fı́sica, Universitat Autònoma de Barcelona , Bellaterra, E-08193 Barcelona, Catalonia, Spain
| | - Sebastià Agramunt-Puig
- Departament de Fı́sica, Universitat Autònoma de Barcelona , Bellaterra, E-08193 Barcelona, Catalonia, Spain
| | - Núria Del-Valle
- Departament de Fı́sica, Universitat Autònoma de Barcelona , Bellaterra, E-08193 Barcelona, Catalonia, Spain
| | - Carles Navau
- Departament de Fı́sica, Universitat Autònoma de Barcelona , Bellaterra, E-08193 Barcelona, Catalonia, Spain
| | - Maria D Baró
- Departament de Fı́sica, Universitat Autònoma de Barcelona , Bellaterra, E-08193 Barcelona, Catalonia, Spain
| | - Sònia Estradé
- LENS, MIND-IN2UB, Departament d'Electrònica, Universitat de Barcelona , Martí i Franquès 1, E-08028 Barcelona, Spain
| | - Francesca Peiró
- LENS, MIND-IN2UB, Departament d'Electrònica, Universitat de Barcelona , Martí i Franquès 1, E-08028 Barcelona, Spain
| | - Salvador Pané
- Institute of Robotics & Intelligent Systems (IRIS), ETH Zürich , CH-8092 Zurich, Switzerland
| | - Bradley J Nelson
- Institute of Robotics & Intelligent Systems (IRIS), ETH Zürich , CH-8092 Zurich, Switzerland
| | - Alvaro Sanchez
- Departament de Fı́sica, Universitat Autònoma de Barcelona , Bellaterra, E-08193 Barcelona, Catalonia, Spain
| | - Josep Nogués
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and The Barcelona Institute of Science and Technology , Campus UAB, Bellaterra, 08193 Barcelona, Spain
- Institució Catalana de Recerca i Estudis Avançats (ICREA) , Barcelona, Catalonia, Spain
| | - Eva Pellicer
- Departament de Fı́sica, Universitat Autònoma de Barcelona , Bellaterra, E-08193 Barcelona, Catalonia, Spain
| | - Jordi Sort
- Departament de Fı́sica, Universitat Autònoma de Barcelona , Bellaterra, E-08193 Barcelona, Catalonia, Spain
- Institució Catalana de Recerca i Estudis Avançats (ICREA) , Barcelona, Catalonia, Spain
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197
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Sapir-Lekhovitser Y, Rotenberg MY, Jopp J, Friedman G, Polyak B, Cohen S. Magnetically actuated tissue engineered scaffold: insights into mechanism of physical stimulation. NANOSCALE 2016; 8:3386-3399. [PMID: 26790538 PMCID: PMC4772769 DOI: 10.1039/c5nr05500h] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Providing the right stimulatory conditions resulting in efficient tissue promoting microenvironment in vitro and in vivo is one of the ultimate goals in tissue development for regenerative medicine. It has been shown that in addition to molecular signals (e.g. growth factors) physical cues are also required for generation of functional cell constructs. These cues are particularly relevant to engineering of biological tissues, within which mechanical stress activates mechano-sensitive receptors, initiating biochemical pathways which lead to the production of functionally mature tissue. Uniform magnetic fields coupled with magnetizable nanoparticles embedded within three dimensional (3D) scaffold structures remotely create transient physical forces that can be transferrable to cells present in close proximity to the nanoparticles. This study investigated the hypothesis that magnetically responsive alginate scaffold can undergo reversible shape deformation due to alignment of scaffold's walls in a uniform magnetic field. Using custom made Helmholtz coil setup adapted to an Atomic Force Microscope we monitored changes in matrix dimensions in situ as a function of applied magnetic field, concentration of magnetic particles within the scaffold wall structure and rigidity of the matrix. Our results show that magnetically responsive scaffolds exposed to an externally applied time-varying uniform magnetic field undergo a reversible shape deformation. This indicates on possibility of generating bending/stretching forces that may exert a mechanical effect on cells due to alternating pattern of scaffold wall alignment and relaxation. We suggest that the matrix structure deformation is produced by immobilized magnetic nanoparticles within the matrix walls resulting in a collective alignment of scaffold walls upon magnetization. The estimated mechanical force that can be imparted on cells grown on the scaffold wall at experimental conditions is in the order of 1 pN, which correlates well with reported threshold to induce mechanotransduction effects on cellular level. This work is our next step in understanding of how to accurately create proper stimulatory microenvironment for promotion of cellular organization to form mature tissue engineered constructs.
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Affiliation(s)
- Yulia Sapir-Lekhovitser
- The Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Menahem Y. Rotenberg
- The Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Juergen Jopp
- Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Gary Friedman
- Department of Surgery, Drexel University College of Medicine, Philadelphia PA 19102, USA
- Department of Electrical and Computer Engineering, Drexel University, Philadelphia, PA 19104, USA
| | - Boris Polyak
- Department of Surgery, Drexel University College of Medicine, Philadelphia PA 19102, USA
- Department of Pharmacology and Physiology, Drexel University, Philadelphia, PA 19102, USA
| | - Smadar Cohen
- The Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
- Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
- Center for Regenerative Medicine and Stem Cell (RMSC) Research, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
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198
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Wo F, Xu R, Shao Y, Zhang Z, Chu M, Shi D, Liu S. A Multimodal System with Synergistic Effects of Magneto-Mechanical, Photothermal, Photodynamic and Chemo Therapies of Cancer in Graphene-Quantum Dot-Coated Hollow Magnetic Nanospheres. Theranostics 2016; 6:485-500. [PMID: 26941842 PMCID: PMC4775859 DOI: 10.7150/thno.13411] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Accepted: 11/24/2015] [Indexed: 11/07/2022] Open
Abstract
In this study, a multimodal therapeutic system was shown to be much more lethal in cancer cell killing compared to a single means of nano therapy, be it photothermal or photodynamic. Hollow magnetic nanospheres (HMNSs) were designed and synthesized for the synergistic effects of both magneto-mechanical and photothermal cancer therapy. By these combined stimuli, the cancer cells were structurally and physically destroyed with the morphological characteristics distinctively different from those by other therapeutics. HMNSs were also coated with the silica shells and conjugated with carboxylated graphene quantum dots (GQDs) as a core-shell composite: HMNS/SiO2/GQDs. The composite was further loaded with an anticancer drug doxorubicin (DOX) and stabilized with liposomes. The multimodal system was able to kill cancer cells with four different therapeutic mechanisms in a synergetic and multilateral fashion, namely, the magnetic field-mediated mechanical stimulation, photothermal damage, photodynamic toxicity, and chemotherapy. The unique nanocomposites with combined mechanical, chemo, and physical effects will provide an alternative strategy for highly improved cancer therapy efficiency.
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Affiliation(s)
- Fangjie Wo
- 1. Research Center for Translational Medicine at Shanghai East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, PR China
| | - Rujiao Xu
- 1. Research Center for Translational Medicine at Shanghai East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, PR China
| | - Yuxiang Shao
- 1. Research Center for Translational Medicine at Shanghai East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, PR China
| | - Zheyu Zhang
- 1. Research Center for Translational Medicine at Shanghai East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, PR China
| | - Maoquan Chu
- 1. Research Center for Translational Medicine at Shanghai East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, PR China
| | - Donglu Shi
- 1. Research Center for Translational Medicine at Shanghai East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, PR China
- 2. The Materials Science and Engineering Program, Dept of Mechanical and Materials Engineering, College of Engineering and Applied Science, University of Cincinnati, Cincinnati, 45221, USA
| | - Shupeng Liu
- 3. Institute of Biomedical Engineering, Shanghai University, Shanghai 200444, P. R. China
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199
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Cheng Y, Muroski ME, Petit DCMC, Mansell R, Vemulkar T, Morshed RA, Han Y, Balyasnikova IV, Horbinski CM, Huang X, Zhang L, Cowburn RP, Lesniak MS. Rotating magnetic field induced oscillation of magnetic particles for in vivo mechanical destruction of malignant glioma. J Control Release 2016; 223:75-84. [PMID: 26708022 PMCID: PMC4724455 DOI: 10.1016/j.jconrel.2015.12.028] [Citation(s) in RCA: 72] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Revised: 11/27/2015] [Accepted: 12/16/2015] [Indexed: 01/05/2023]
Abstract
Magnetic particles that can be precisely controlled under a magnetic field and transduce energy from the applied field open the way for innovative cancer treatment. Although these particles represent an area of active development for drug delivery and magnetic hyperthermia, the in vivo anti-tumor effect under a low-frequency magnetic field using magnetic particles has not yet been demonstrated. To-date, induced cancer cell death via the oscillation of nanoparticles under a low-frequency magnetic field has only been observed in vitro. In this report, we demonstrate the successful use of spin-vortex, disk-shaped permalloy magnetic particles in a low-frequency, rotating magnetic field for the in vitro and in vivo destruction of glioma cells. The internalized nanomagnets align themselves to the plane of the rotating magnetic field, creating a strong mechanical force which damages the cancer cell structure inducing programmed cell death. In vivo, the magnetic field treatment successfully reduces brain tumor size and increases the survival rate of mice bearing intracranial glioma xenografts, without adverse side effects. This study demonstrates a novel approach of controlling magnetic particles for treating malignant glioma that should be applicable to treat a wide range of cancers.
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Affiliation(s)
- Yu Cheng
- Shanghai East Hospital, The Institute for Biomedical Engineering and Nano Science, Tongji University School of Medicine, Shanghai, China; The Brain Tumor Center, The University of Chicago, Chicago, IL 60637, United States
| | - Megan E Muroski
- Northwestern University, Feinberg School of Medicine, Chicago, IL 60611, United States
| | - Dorothée C M C Petit
- Thin Film Magnetism Group, Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, United Kingdom
| | - Rhodri Mansell
- Thin Film Magnetism Group, Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, United Kingdom
| | - Tarun Vemulkar
- Thin Film Magnetism Group, Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, United Kingdom
| | - Ramin A Morshed
- The Brain Tumor Center, The University of Chicago, Chicago, IL 60637, United States
| | - Yu Han
- Northwestern University, Feinberg School of Medicine, Chicago, IL 60611, United States
| | - Irina V Balyasnikova
- Northwestern University, Feinberg School of Medicine, Chicago, IL 60611, United States
| | - Craig M Horbinski
- Northwestern University, Feinberg School of Medicine, Chicago, IL 60611, United States
| | - Xinlei Huang
- The Brain Tumor Center, The University of Chicago, Chicago, IL 60637, United States
| | - Lingjiao Zhang
- The Brain Tumor Center, The University of Chicago, Chicago, IL 60637, United States
| | - Russell P Cowburn
- Thin Film Magnetism Group, Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, United Kingdom
| | - Maciej S Lesniak
- Northwestern University, Feinberg School of Medicine, Chicago, IL 60611, United States.
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200
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In vitro hyperthermia with improved colloidal stability and enhanced SAR of magnetic core/shell nanostructures. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 59:702-709. [DOI: 10.1016/j.msec.2015.10.064] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2015] [Revised: 09/27/2015] [Accepted: 10/20/2015] [Indexed: 12/30/2022]
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