151
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Bordonali L, Kalaivani T, Sabareesh KPV, Innocenti C, Fantechi E, Sangregorio C, Casula MF, Lartigue L, Larionova J, Guari Y, Corti M, Arosio P, Lascialfari A. NMR-D study of the local spin dynamics and magnetic anisotropy in different nearly monodispersed ferrite nanoparticles. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2013; 25:066008. [PMID: 23315450 DOI: 10.1088/0953-8984/25/6/066008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
We present a systematic experimental comparison of the superparamagnetic relaxation time constants obtained by means of dynamic magnetic measurements and (1)H-NMR relaxometry, on ferrite-based nanosystems with different composition, various core sizes and dispersed in different solvents. The application of a heuristic model for the relaxivity allowed a comparison between the reversal time of magnetization as seen by NMR and the results from the AC susceptibility experiments, and an estimation of fundamental microscopic properties. A good agreement between the NMR and AC results was found when fitting the AC data to a Vogel-Fulcher law. Key parameters obtained from the model have been exploited to evaluate the impact of the contribution from magnetic anisotropy to the relaxivity curves and estimate the minimum approach distance of the bulk solvent.
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Affiliation(s)
- L Bordonali
- Department of Physics E Amaldi, Università Uniroma TRE, Roma, Italy.
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152
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Borase T, Ninjbadgar T, Kapetanakis A, Roche S, O'Connor R, Kerskens C, Heise A, Brougham DF. Stable aqueous dispersions of glycopeptide-grafted selectably functionalized magnetic nanoparticles. Angew Chem Int Ed Engl 2013; 52:3164-7. [PMID: 23371331 DOI: 10.1002/anie.201208099] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2012] [Indexed: 11/08/2022]
Affiliation(s)
- Tushar Borase
- School of Chemical Sciences, Dublin City University, Glasnevin, Dublin 9, Ireland
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153
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Borase T, Ninjbadgar T, Kapetanakis A, Roche S, O'Connor R, Kerskens C, Heise A, Brougham DF. Stable Aqueous Dispersions of Glycopeptide-Grafted Selectably Functionalized Magnetic Nanoparticles. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201208099] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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154
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Marradi M, Chiodo F, García I, Penadés S. Glyconanoparticles as multifunctional and multimodal carbohydrate systems. Chem Soc Rev 2013; 42:4728-45. [PMID: 23288339 DOI: 10.1039/c2cs35420a] [Citation(s) in RCA: 233] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The quest for the construction of multivalent carbohydrate systems, with precise geometries that are highly efficient in interacting with carbohydrate binding proteins, has been a goal of synthetic chemists since the discovery of the multivalent nature of carbohydrate-mediated interactions. However, the control of the spatial and topological requirements for these systems is still a challenge. Glyconanoparticles (GNPs) are sugar-coated gold, iron oxide or semiconductor nanoparticles with defined thiol-ending glycosides that combine the multivalent presentation of carbohydrates (glycoclusters) with the special chemico-physical properties of the nano-sized metallic core. The possibility of attaching different types of carbohydrates and other molecules (such as luminescent probes, peptides, and magnetic chelates) onto the same gold nanoparticle in a controlled way (multifunctional GNPs), as well as modifying the core in order to obtain glyconanoparticles with magnetic or fluorescence properties (multimodal GNPs) makes this multivalent glyco-scaffold suitable for carrying out studies on carbohydrate-mediated interactions and applications in molecular imaging. In this review, we focus mainly on the rational design of glyconanoparticles as scaffolds for combining different ligands and survey the most recent examples of glyconanoparticles as both multivalent carbohydrate systems and probes for molecular imaging.
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Affiliation(s)
- Marco Marradi
- Laboratory of GlycoNanotechnology, Biofunctional Nanomaterials Unit, CIC biomaGUNE, Paseo Miramón 182, 20009, San Sebastián, Spain.
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155
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Guerrero G, Alauzun JG, Granier M, Laurencin D, Mutin PH. Phosphonate coupling molecules for the control of surface/interface properties and the synthesis of nanomaterials. Dalton Trans 2013; 42:12569-85. [DOI: 10.1039/c3dt51193f] [Citation(s) in RCA: 172] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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156
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Santiago-Rodríguez L, Lafontaine MM, Castro C, Méndez-Vega J, Latorre-Esteves M, Juan EJ, Mora E, Torres-Lugo M, Rinaldi C. Synthesis, Stability, Cellular Uptake, and Blood Circulation Time of Carboxymethyl-Inulin Coated Magnetic Nanoparticles. J Mater Chem B 2013; 1:2807-2817. [PMID: 23914296 DOI: 10.1039/c3tb20256a] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Iron oxide nanoparticles were coated with the biocompatible, biodegradable, non-immunogenic polysaccharide inulin by introduction of carboxyl groups into the inulin structure and conjugation with amine groups on the surface of iron oxide nanoparticles grafted with 3-aminopropyltriethoxysilane. The resulting nanoparticles were characterized by FT-IR spectroscopy, transmission electron microscopy, dynamic light scattering, zeta potential, SQUID magnetometry, and with respect to their energy dissipation rate in applied alternating magnetic fields. The nanoparticles had a hydrodynamic diameter in the range of 70 ± 10 nm and were superparamagnetic, with energy dissipation rates in the range of 58-175 W/g for an applied field frequency of 233 kHz and an applied field amplitude in the range of 20-48 kA/m. The nanoparticles were stable in a range of pH, at temperatures between 23°C and 53°C, and in short term storage in water, PBS, and culture media. The particles were non-cytotoxic to the immortalized human cancer cell lines Hey A8 FDR, A2780, MDA 468, MCF-7 and Caco-2. The nanoparticles were readily taken up by Caco-2 cells in a time and concentration dependent fashion, and were found to have a pharmacokinetic time constant of 47 ± 3 min. The small size, non-cytotoxicity, and efficient energy dissipation of the particles could make them useful for biomedical applications such as magnetic fluid hyperthermia.
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Affiliation(s)
- Lenibel Santiago-Rodríguez
- Department of Chemical Engineering, University of Puerto Rico, Mayagüez Campus, P.O. Box 9000, Mayagüez PR 00681, Puerto Rico
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157
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Rebuttini V, Pucci A, Arosio P, Bai X, Locatelli E, Pinna N, Lascialfari A, Franchini MC. Zirconia-doped nanoparticles: organic coating, polymeric entrapment and application as dual-imaging agents. J Mater Chem B 2013; 1:919-923. [DOI: 10.1039/c2tb00208f] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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158
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Arosio P, Baldi G, Chiellini F, Corti M, Dessy A, Galinetto P, Gazzarri M, Grandi MS, Innocenti C, Lascialfari A, Lorenzi G, Orsini F, Piras AM, Ravagli C, Sangregorio C. Magnetism and spin dynamics of novel encapsulated iron oxide superparamagnetic nanoparticles. Dalton Trans 2013; 42:10282-91. [DOI: 10.1039/c3dt32805h] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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159
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Lartigue L, Hugounenq P, Alloyeau D, Clarke SP, Lévy M, Bacri JC, Bazzi R, Brougham DF, Wilhelm C, Gazeau F. Cooperative organization in iron oxide multi-core nanoparticles potentiates their efficiency as heating mediators and MRI contrast agents. ACS NANO 2012; 6:10935-49. [PMID: 23167525 DOI: 10.1021/nn304477s] [Citation(s) in RCA: 142] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
In the pursuit of optimized magnetic nanostructures for diagnostic and therapeutic applications, the role of nanoparticle architecture has been poorly investigated. In this study, we demonstrate that the internal collective organization of multi-core iron oxide nanoparticles can modulate their magnetic properties in such a way as to critically enhance their hyperthermic efficiency and their MRI T(1) and T(2) contrast effect. Multi-core nanoparticles composed of maghemite cores were synthesized through a polyol approach, and subsequent electrostatic colloidal sorting was used to fractionate the suspensions by size and hence magnetic properties. We obtained stable suspensions of citrate-stabilized nanostructures ranging from single-core 10 nm nanoparticles to multi-core magnetically cooperative 30 nm nanoparticles. Three-dimensional oriented attachment of primary cores results in enhanced magnetic susceptibility and decreased surface disorder compared to individual cores, while preserving a superparamagnetic-like behavior of the multi-core structures and potentiating thermal losses. Exchange coupling in the multi-core nanoparticles modifies the dynamics of the magnetic moment in such a way that both the longitudinal and transverse NMR relaxivities are also enhanced. Long-term MRI detection of tumor cells and their efficient destruction by magnetic hyperthermia can be achieved thanks to a facile and nontoxic cell uptake of these iron oxide nanostructures. This study proves for the first time that cooperative magnetic behavior within highly crystalline iron oxide superparamagnetic multi-core nanoparticles can improve simultaneously therapeutic and diagnosis effectiveness over existing nanostructures, while preserving biocompatibility.
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Affiliation(s)
- Lénaic Lartigue
- Laboratoire Matières et Systèmes Complexes, UMR 7057 CNRS/ Université Paris Diderot, 10 rue Alice Domon et Léonie Duquet, 75013 Paris, France
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160
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Yoo D, Jeong H, Preihs C, Choi JS, Shin TH, Sessler JL, Cheon J. Double-effector nanoparticles: a synergistic approach to apoptotic hyperthermia. Angew Chem Int Ed Engl 2012; 51:12482-5. [PMID: 23139178 PMCID: PMC3724511 DOI: 10.1002/anie.201206400] [Citation(s) in RCA: 80] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2012] [Indexed: 12/31/2022]
Abstract
Highly efficient apoptotic hyperthermia is achieved using a double-effector nanoparticle that can generate reactive oxygen species (ROS) and heat. ROS render cancer cells more susceptible to subsequent heat treatment, which remarkably increases the degree of apoptotic cell death. Xenograft tumors (100 mm(3)) in mice are completely eliminated within 8 days after a single mild magnetic hyperthermia treatment at 43 °C for 30 min.
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Affiliation(s)
- Dongwon Yoo
- Department of Chemistry, Yonsei University, Seoul 120-749 (Korea)
| | - Heeyeong Jeong
- Department of Chemistry, Yonsei University, Seoul 120-749 (Korea)
| | - Christian Preihs
- Department of Chemistry and Biochemistry, University of Texas, 1 University Station-A5300, Austin, TX 78712-0165 (USA)
| | - Jin-sil Choi
- Department of Chemistry, Yonsei University, Seoul 120-749 (Korea)
| | - Tae-Hyun Shin
- Department of Chemistry, Yonsei University, Seoul 120-749 (Korea)
| | - Jonathan L. Sessler
- Department of Chemistry and Biochemistry, University of Texas, 1 University Station-A5300, Austin, TX 78712-0165 (USA)
| | - Jinwoo Cheon
- Department of Chemistry, Yonsei University, Seoul 120-749 (Korea)
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161
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Yoo D, Jeong H, Preihs C, Choi JS, Shin TH, Sessler JL, Cheon J. Double-Effector Nanoparticles: A Synergistic Approach to Apoptotic Hyperthermia. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201206400] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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162
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Diou O, Tsapis N, Fattal E. Targeted nanotheranostics for personalized cancer therapy. Expert Opin Drug Deliv 2012; 9:1475-87. [DOI: 10.1517/17425247.2012.736486] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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163
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Kang XJ, Dai YL, Ma PA, Yang DM, Li CX, Hou ZY, Cheng ZY, Lin J. Poly(acrylic acid)-modified Fe3O4 microspheres for magnetic-targeted and pH-triggered anticancer drug delivery. Chemistry 2012; 18:15676-82. [PMID: 23080514 DOI: 10.1002/chem.201202433] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2012] [Indexed: 12/13/2022]
Abstract
Monodisperse poly(acrylic acid)-modified Fe(3)O(4) (PAA@Fe(3)O(4)) hybrid microspheres with dual responses (magnetic field and pH) were successfully fabricated. The PAA polymer was encapsulated into the inner cavity of Fe(3)O(4) hollow spheres by a vacuum-casting route and photo-initiated polymerization. TEM images show that the samples consist of monodisperse porous spheres with a diameter around 200 nm. The Fe(3)O(4) spheres, after modification with the PAA polymer, still possess enough space to hold guest molecules. We selected doxorubicin (DOX) as a model drug to investigate the drug loading and release behavior of as-prepared composites. The release of DOX molecules was strongly dependent on the pH value due to the unique property of PAA. The HeLa cell-uptake process of DOX-loaded PAA@Fe(3)O(4) was observed by confocal laser scanning microscopy (CLSM). After being incubated with HeLa cells under magnet magnetically guided conditions, the cytotoxtic effects of DOX-loaded PAA@Fe(3)O(4) increased. These results indicate that pH-responsive magnetic PAA@Fe(3)O(4) spheres have the potential to be used as anticancer drug carriers.
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Affiliation(s)
- Xiao-Jiao Kang
- State Key Laboratory of Rare Earth Resource, Utilization Changchun Institute of Applied Chemistry, Chinese Academy of Science, PR China
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164
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Muñoz-Bonilla A, Marcelo G, Casado C, Teran FJ, Fernández-García M. Preparation of glycopolymer-coated magnetite nanoparticles for hyperthermia treatment. ACTA ACUST UNITED AC 2012. [DOI: 10.1002/pola.26367] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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165
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Abstract
Theranostics is referred to as a treatment strategy that combines therapeutics with diagnostics, aiming to monitor the response to treatment and increase drug efficacy and safety, which would be a key part of personalized medicine and require considerable advances in predictive medicine. Theranostics associates with both a diagnosis that tests patients for possible reactions to taking new medication and targeted drug delivery based on the test results. Emerging nanotechnology provides a great deal of opportunity to design and develop such combination agents, permitting the delivery of therapeutics and concurrently allowing the detection modality to be used not only before or after but also throughout the entire treatment regimen. The introduction of nanotheranostics into routine health care has still a long way to go, since evaluations on cytotoxicity, genotoxicity, and immunotoxicity of prospective nanotheranostics, demonstration of cost-effectiveness, and availability of appropriate accessible testing systems are still required. An extensive review, from a chemistry point of view, of the recent development of nanotheranostics and its in vitro and in vivo applications are herein presented.
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Affiliation(s)
- Li-Sheng Wang
- Department of Biochemical Science and Technology, National Taiwan University, Taipei, Taiwan
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166
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Vuong QL, Berret JF, Fresnais J, Gossuin Y, Sandre O. A universal scaling law to predict the efficiency of magnetic nanoparticles as MRI T(2)-contrast agents. Adv Healthc Mater 2012. [PMID: 23184784 DOI: 10.1002/adhm.201200078] [Citation(s) in RCA: 123] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Magnetic particles are very efficient magnetic resonance imaging (MRI) contrast agents. In recent years, chemists have unleashed their imagination to design multi-functional nanoprobes for biomedical applications including MRI contrast enhancement. This study is focused on the direct relationship between the size and magnetization of the particles and their nuclear magnetic resonance relaxation properties, which condition their efficiency. Experimental relaxation results with maghemite particles exhibiting a wide range of sizes and magnetizations are compared to previously published data and to well-established relaxation theories with a good agreement. This allows deriving the experimental master curve of the transverse relaxivity versus particle size and to predict the MRI contrast efficiency of any type of magnetic nanoparticles. This prediction only requires the knowledge of the size of the particles impermeable to water protons and the saturation magnetization of the corresponding volume. To predict the T(2) relaxation efficiency of magnetic single crystals, the crystal size and magnetization - obtained through a single Langevin fit of a magnetization curve - is the only information needed. For contrast agents made of several magnetic cores assembled into various geometries (dilute fractal aggregates, dense spherical clusters, core-shell micelles, hollow vesicles…), one needs to know a third parameter, namely the intra-aggregate volume fraction occupied by the magnetic materials relatively to the whole (hydrodynamic) sphere. Finally a calculation of the maximum achievable relaxation effect - and the size needed to reach this maximum - is performed for different cases: maghemite single crystals and dense clusters, core-shell particles (oxide layer around a metallic core) and zinc-manganese ferrite crystals.
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Affiliation(s)
- Quoc L Vuong
- Université de Mons, Biological Physics Department, 20 Place du Parc, 7000 Mons, Belgium
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167
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Bae KH, Park M, Do MJ, Lee N, Ryu JH, Kim GW, Kim C, Park TG, Hyeon T. Chitosan oligosaccharide-stabilized ferrimagnetic iron oxide nanocubes for magnetically modulated cancer hyperthermia. ACS NANO 2012; 6:5266-73. [PMID: 22588093 DOI: 10.1021/nn301046w] [Citation(s) in RCA: 196] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Magnetic nanoparticles have gained significant attention as a therapeutic agent for cancer treatment. Herein, we developed chitosan oligosaccharide-stabilized ferrimagnetic iron oxide nanocubes (Chito-FIONs) as an effective heat nanomediator for cancer hyperthermia. Dynamic light scattering and transmission electron microscopic analyses revealed that Chito-FIONs were composed of multiple 30-nm-sized FIONs encapsulated by a chitosan polymer shell. Multiple FIONs in an interior increased the total magnetic moments, which leads to localized accumulation under an applied magnetic field. Chito-FIONs also exhibited superior magnetic heating ability with a high specific loss power value (2614 W/g) compared with commercial superparamagnetic Feridex nanoparticles (83 W/g). The magnetically guided Chito-FIONs successfully eradicated target cancer cells through caspase-mediated apoptosis. Furthermore, Chito-FIONs showed excellent antitumor efficacy on an animal tumor model without any severe toxicity.
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Affiliation(s)
- Ki Hyun Bae
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Korea
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168
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Guardia P, Di Corato R, Lartigue L, Wilhelm C, Espinosa A, Garcia-Hernandez M, Gazeau F, Manna L, Pellegrino T. Water-soluble iron oxide nanocubes with high values of specific absorption rate for cancer cell hyperthermia treatment. ACS NANO 2012; 6:3080-91. [PMID: 22494015 DOI: 10.1021/nn2048137] [Citation(s) in RCA: 423] [Impact Index Per Article: 35.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Iron oxide nanocrystals (IONCs) are appealing heat mediator nanoprobes in magnetic-mediated hyperthermia for cancer treatment. Here, specific absorption rate (SAR) values are reported for cube-shaped water-soluble IONCs prepared by a one-pot synthesis approach in a size range between 13 and 40 nm. The SAR values were determined as a function of frequency and magnetic field applied, also spanning technical conditions which are considered biomedically safe for patients. Among the different sizes tested, IONCs with an average diameter of 19 ± 3 nm had significant SAR values in clinical conditions and reached SAR values up to 2452 W/g(Fe) at 520 kHz and 29 kAm(-1), which is one of the highest values so far reported for IONCs. In vitro trials carried out on KB cancer cells treated with IONCs of 19 nm have shown efficient hyperthermia performance, with cell mortality of about 50% recorded when an equilibrium temperature of 43 °C was reached after 1 h of treatment.
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Affiliation(s)
- Pablo Guardia
- Istituto Italiano di Tecnologia, via Morego 30, 16163 Genova, Italy
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169
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Tietze R, Lyer S, Dürr S, Alexiou C. Nanoparticles for cancer therapy using magnetic forces. Nanomedicine (Lond) 2012; 7:447-57. [DOI: 10.2217/nnm.12.10] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The term ‘nanomedicine’ refers to the use of nanotechnology in the treatment, diagnosis and monitoring of diseases. Magnetic drug targeting is a particularly promising application in this field. The goal of the carrier systems involved is to achieve active enrichment of effective substances in diseased tissue. Numerous nanosystems can be used as carriers, but magnetic iron oxide nanoparticles are particularly important. On the one hand, the particles serve as carriers for the active substance, while on the other hand they can also be visualized using conventional imaging techniques and can therefore be used for ‘theranostic’ purposes. They can also be used in hyperthermia, another important pillar of nanomedicine. Both procedures are intended to lead to specific forms of treatment, which is of medical and economic relevance in view of the increasing numbers of cancer patients worldwide. This study offers a brief overview of current developments in medical applications for magnetic nanoparticles in cancer therapy.
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Affiliation(s)
- Rainer Tietze
- Department of Oto-rhino-laryngology, Head & Neck Surgery, Erlangen University Hospital, Section for Experimental Oncology & Nanomedicine (Else Kröner–Fresenius-Stiftungsprofessur), Glückstrasse 10, 91054 Erlangen, Germany
| | - Stefan Lyer
- Department of Oto-rhino-laryngology, Head & Neck Surgery, Erlangen University Hospital, Section for Experimental Oncology & Nanomedicine (Else Kröner–Fresenius-Stiftungsprofessur), Glückstrasse 10, 91054 Erlangen, Germany
| | - Stephan Dürr
- Department of Oto-rhino-laryngology, Head & Neck Surgery, Erlangen University Hospital, Section for Experimental Oncology & Nanomedicine (Else Kröner–Fresenius-Stiftungsprofessur), Glückstrasse 10, 91054 Erlangen, Germany
| | - Christoph Alexiou
- Department of Oto-rhino-laryngology, Head & Neck Surgery, Erlangen University Hospital, Section for Experimental Oncology & Nanomedicine (Else Kröner–Fresenius-Stiftungsprofessur), Glückstrasse 10, 91054 Erlangen, Germany
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170
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Gong YK, Winnik FM. Strategies in biomimetic surface engineering of nanoparticles for biomedical applications. NANOSCALE 2012; 4:360-8. [PMID: 22134705 DOI: 10.1039/c1nr11297j] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Engineered nanoparticles (NPs) play an increasingly important role in biomedical sciences and in nanomedicine. Yet, in spite of significant advances, it remains difficult to construct drug-loaded NPs with precisely defined therapeutic effects, in terms of release time and spatial targeting. The body is a highly complex system that imposes multiple physiological and cellular barriers to foreign objects. Upon injection in the blood stream or following oral administation, NPs have to bypass numerous barriers prior to reaching their intended target. A particularly successful design strategy consists in masking the NP to the biological environment by covering it with an outer surface mimicking the composition and functionality of the cell's external membrane. This review describes this biomimetic approach. First, we outline key features of the composition and function of the cell membrane. Then, we present recent developments in the fabrication of molecules that mimic biomolecules present on the cell membrane, such as proteins, peptides, and carbohydrates. We present effective strategies to link such bioactive molecules to the NPs surface and we highlight the power of this approach by presenting some exciting examples of biomimetically engineered NPs useful for multimodal diagnostics and for target-specific drug/gene delivery applications. Finally, critical directions for future research and applications of biomimetic NPs are suggested to the readers.
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Affiliation(s)
- Yong-kuan Gong
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an, 710069, PR China.
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171
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Choi KY, Liu G, Lee S, Chen X. Theranostic nanoplatforms for simultaneous cancer imaging and therapy: current approaches and future perspectives. NANOSCALE 2012; 4:330-42. [PMID: 22134683 PMCID: PMC3629960 DOI: 10.1039/c1nr11277e] [Citation(s) in RCA: 278] [Impact Index Per Article: 23.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Theranostics is a concept which refers to the integration of imaging and therapy. As an evolving new field, it is related to but different from traditional imaging and therapeutics. It embraces multiple techniques to arrive at a comprehensive diagnostic, in vivo molecular images and an individualized treatment regimen. More recently, there is a trend of tangling these efforts with emerging materials and nanotechnologies, in an attempt to develop novel platforms and methodologies to tackle practical issues in clinics. In this article, topics of rationally designed nanoparticles for the simultaneous imaging and therapy of cancer will be discussed. Several exemplary nanoparticle platforms such as polymeric nanoparticles, gold nanomaterials, carbon nanotubes, magnetic nanoparticles and silica nanoparticles will be elaborated on and future challenges of nanoparticle-based systems will be discussed.
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Affiliation(s)
- Ki Young Choi
- Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health (NIH), Bethesda, MD, 20892, USA
| | - Gang Liu
- Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health (NIH), Bethesda, MD, 20892, USA
| | - Seulki Lee
- Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health (NIH), Bethesda, MD, 20892, USA
| | - Xiaoyuan Chen
- Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health (NIH), Bethesda, MD, 20892, USA
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172
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Di W, Velu SKP, Lascialfari A, Liu C, Pinna N, Arosio P, Sakka Y, Qin W. Fluorescent and paramagnetic core–shell hybrid nanoparticles for bi-modal magnetic resonance/luminescence imaging. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm34508k] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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173
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Ding L, Ju H. Biofunctionalization of nanoparticles for cytosensing and cell surface carbohydrate assay. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c1jm13700j] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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