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Sanz-Sagué B, Sáenz-Hernández A, Moreno Maldonado AC, Fuentes-García JA, Nuñez JM, Zegura B, Stern A, Kolosa K, Rozman I, Torres TE, Goya GF. Genotoxicity and heating Performance of V xFe 3-xO 4 nanoparticles in Health applications. Chem Biol Interact 2024; 394:110977. [PMID: 38548214 DOI: 10.1016/j.cbi.2024.110977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 03/10/2024] [Accepted: 03/26/2024] [Indexed: 04/02/2024]
Abstract
The applications of magnetic nanoparticles (MNPs) as biocatalysts in different biomedical areas have been evolved very recently. One of the main challenges in this field is to design affective MNPs surfaces with catalytically active atomic centres, while producing minimal toxicological side effects on the hosting cell or tissues. MNPs of vanadium spinel ferrite (VFe2O4) are a promising material for mimicking the action of natural enzymes in degrading harmful substrates due to the presence of active V5+ centres. However, the toxicity of this material has not been yet studied in detail enough to grant biomedical safety. In this work, we have extensively measured the structural, compositional, and magnetic properties of a series of VxFe3-xO4 spinel ferrite MNPs to assess the surface composition and oxidation state of V atoms, and also performed systematic and extensive in vitro cytotoxicity and genotoxicity testing required to assess their safety in potential clinical applications. We could establish the presence of V5+ at the particle surface even in water-based colloidal samples at pH 7, as well as different amounts of V2+ and V3+ substitution at the A and B sites of the spinel structure. All samples showed large heating efficiency with Specific Loss Power values up to 400 W/g (H0 = 30 kA/m; f = 700 kHz). Samples analysed for safety in human hepatocellular carcinoma (HepG2) cell line with up to 24h of exposure showed that these MNPs did not induce major genomic abnormalities such as micronuclei, nuclear buds, or nucleoplasmic bridges (MNIs, NBUDs, and NPBs), nor did they cause DNA double-strand breaks (DSBs) or aneugenic effects-types of damage considered most harmful to cellular genetic material. The present study is an essential step towards the use of these type of nanomaterials in any biomedical or clinical application.
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Affiliation(s)
- Beatriz Sanz-Sagué
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, C/M Esquillor S/N, 50018, Zaragoza, Spain
| | - Amaia Sáenz-Hernández
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, C/M Esquillor S/N, 50018, Zaragoza, Spain
| | - Ana C Moreno Maldonado
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, C/M Esquillor S/N, 50018, Zaragoza, Spain; Departamento de Física de La Materia Condensada, Facultad de Ciencias, C/ Pedro Cerbuna 12, 50009, Zaragoza, Spain
| | - Jesús A Fuentes-García
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, C/M Esquillor S/N, 50018, Zaragoza, Spain; Departamento de Física de La Materia Condensada, Facultad de Ciencias, C/ Pedro Cerbuna 12, 50009, Zaragoza, Spain
| | - Jorge M Nuñez
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, C/M Esquillor S/N, 50018, Zaragoza, Spain; Departamento de Física de La Materia Condensada, Facultad de Ciencias, C/ Pedro Cerbuna 12, 50009, Zaragoza, Spain; Laboratorio de Microscopías Avanzadas (LMA), Universidad de Zaragoza, C/Mariano Esquillor, 50018, Zaragoza, Spain
| | - Bojana Zegura
- National Institute of Biology, Department of Genetic Toxicology and Cancer Biology, Večna Pot 121, 1000, Ljubljana, Slovenia; University of Ljubljana, Kongresni Trg 12, 1000, Ljubljana, Slovenia; Biotechnical Faculty, University of Ljubljana, Jamnikarjeva ulica 101, 1000, Ljubljana, Slovenia
| | - Alja Stern
- National Institute of Biology, Department of Genetic Toxicology and Cancer Biology, Večna Pot 121, 1000, Ljubljana, Slovenia; University of Ljubljana, Kongresni Trg 12, 1000, Ljubljana, Slovenia; Biotechnical Faculty, University of Ljubljana, Jamnikarjeva ulica 101, 1000, Ljubljana, Slovenia
| | - Katja Kolosa
- National Institute of Biology, Department of Genetic Toxicology and Cancer Biology, Večna Pot 121, 1000, Ljubljana, Slovenia
| | - Iza Rozman
- National Institute of Biology, Department of Genetic Toxicology and Cancer Biology, Večna Pot 121, 1000, Ljubljana, Slovenia; University of Ljubljana, Kongresni Trg 12, 1000, Ljubljana, Slovenia; Biotechnical Faculty, University of Ljubljana, Jamnikarjeva ulica 101, 1000, Ljubljana, Slovenia
| | - Teobaldo E Torres
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, C/M Esquillor S/N, 50018, Zaragoza, Spain; Departamento de Física de La Materia Condensada, Facultad de Ciencias, C/ Pedro Cerbuna 12, 50009, Zaragoza, Spain; Laboratorio de Microscopías Avanzadas (LMA), Universidad de Zaragoza, C/Mariano Esquillor, 50018, Zaragoza, Spain
| | - Gerardo F Goya
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, C/M Esquillor S/N, 50018, Zaragoza, Spain; Departamento de Física de La Materia Condensada, Facultad de Ciencias, C/ Pedro Cerbuna 12, 50009, Zaragoza, Spain.
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Krysiak S, Gotić M, Madej E, Moreno Maldonado AC, Goya GF, Spiridis N, Burda K. The effect of ultrafine WO 3 nanoparticles on the organization of thylakoids enriched in photosystem II and energy transfer in photosystem II complexes. Microsc Res Tech 2023; 86:1583-1598. [PMID: 37534550 DOI: 10.1002/jemt.24394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 07/20/2023] [Accepted: 07/21/2023] [Indexed: 08/04/2023]
Abstract
In this work, a new approach to construct self-assembled hybrid systems based on natural PSII-enriched thylakoid membranes (PSII BBY) is demonstrated. Superfine m-WO3 NPs (≈1-2 nm) are introduced into PSII BBY. Transmission electron microscopy (TEM) measurements showed that even the highest concentrations of NPs used did not degrade the PSII BBY membranes. Using atomic force microscopy (AFM), it is shown that the organization of PSII BBY depends strongly on the concentration of NPs applied. This proved that the superfine NPs can easily penetrate the thylakoid membrane and interact with its components. These changes are also related to the modified energy transfer between the external light-harvesting antennas and the PSII reaction center, shown by absorption and fluorescence experiments. The biohybrid system shows stability at pH 6.5, the native operating environment of PSII, so a high rate of O2 evolution is expected. In addition, the light-induced water-splitting process can be further stimulated by the direct interaction of superfine WO3 NPs with the donor and acceptor sides of PSII. The water-splitting activity and stability of this colloidal system are under investigation. RESEARCH HIGHLIGHTS: The phenomenon of the self-organization of a biohybrid system composed of thylakoid membranes enriched in photosystem II and superfine WO3 nanoparticles is studied using AFM and TEM. A strong dependence of the organization of PSII complexes within PSII BBY membranes on the concentration of NPs applied is observed. This observation turns out to be crucial to understand the complexity of the mechanism of the action of WO3 NPs on modifications of energy transfer from external antenna complexes to the PSII reaction center.
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Affiliation(s)
- S Krysiak
- Faculty of Physics and Applied Computer Science, AGH - University of Krakow, Krakow, Poland
| | - M Gotić
- Division of Materials Physics, Ruđer Bošković Institute, Zagreb, Croatia
| | - E Madej
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Krakow, Poland
| | - A C Moreno Maldonado
- Condensed Matter Physics Department and Instituto de Nanociencia y Materiales de Aragón, Universidad de Zaragoza, Zaragoza, Spain
| | - G F Goya
- Condensed Matter Physics Department and Instituto de Nanociencia y Materiales de Aragón, Universidad de Zaragoza, Zaragoza, Spain
| | - N Spiridis
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Krakow, Poland
| | - K Burda
- Faculty of Physics and Applied Computer Science, AGH - University of Krakow, Krakow, Poland
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Niraula G, Toneto D, Goya GF, Zoppellaro G, Coaquira JAH, Muraca D, Denardin JC, Almeida TP, Knobel M, Ayesh AI, Sharma SK. Observation of magnetic vortex configuration in non-stoichiometric Fe 3O 4 nanospheres. Nanoscale Adv 2023; 5:5015-5028. [PMID: 37705767 PMCID: PMC10496882 DOI: 10.1039/d3na00433c] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Accepted: 08/14/2023] [Indexed: 09/15/2023]
Abstract
Theoretical and micromagnetic simulation studies of magnetic nanospheres with vortex configurations suggest that such nanostructured materials have technological advantages over conventional nanosystems for applications based on high-power-rate absorption and subsequent emission. However, full experimental evidence of magnetic vortex configurations in spheres of submicrometer size is still lacking. Here, we report the microwave irradiation fabrication of Fe3O4 nanospheres and establish their magnetic vortex configuration based on experimental results, theoretical analysis, and micromagnetic simulations. Detailed magnetic and electrical measurements, together with Mössbauer spectroscopy data, provide evidence of a loss of stoichiometry in vortex nanospheres owing to the presence of a surface oxide layer, defects, and a higher concentration of cation vacancies. The results indicate that the magnetic vortex spin configuration can be established in bulk spherical magnetite materials. This study provides crucial information that can aid the synthesis of magnetic nanospheres with magnetically tailored properties; consequently, they may be promising candidates for future technological applications based on three-dimensional magnetic vortex structures.
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Affiliation(s)
- Gopal Niraula
- Department of Physics, Federal University of Maranhao Sao Luis 65080-805 Brazil
- Laboratory of Magnetic Materials, NFA, Institute of Physics, University of Brasilia Brasilia 70910-900 Brazil
| | | | - Gerardo F Goya
- Instituto de Nanociencia y Materiales de Aragón (INMA), Universidad de Zaragoza 50018 Zaragoza Spain
| | - Giorgio Zoppellaro
- Regional Centre of Advanced Technologies and Materials, Palacky University in Olomouc Slechtitelu 27 77900 Olomouc Czech Republic
| | - Jose A H Coaquira
- Laboratory of Magnetic Materials, NFA, Institute of Physics, University of Brasilia Brasilia 70910-900 Brazil
| | - Diego Muraca
- Institute of Physics "Gleb Wataghin" (IFGW), University of Campinas (Unicamp) Campinas SP Brazil
| | - Juliano C Denardin
- Universidad de Santiago de Chile (USACH), CEDENNA and Departamento de Física Santiago 9170124 Chile
| | - Trevor P Almeida
- SUPA, School of Physics and Astronomy, University of Glasgow Glasgow G12 8QQ UK
| | - Marcelo Knobel
- Institute of Physics "Gleb Wataghin" (IFGW), University of Campinas (Unicamp) Campinas SP Brazil
| | - Ahmad I Ayesh
- Physics Program, Department of Math., Stat. and Physics, College of Arts and Sciences, Qatar University P. O. Box 2713 Doha Qatar
| | - Surender K Sharma
- Department of Physics, Central University of Punjab Bathinda 151401 India
- Department of Physics, Federal University of Maranhao Sao Luis 65080-805 Brazil
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Matías-Reyes AE, Alvarado-Noguez ML, Pérez-González M, Carbajal-Tinoco MD, Estrada-Muñiz E, Fuentes-García JA, Vega-Loyo L, Tomás SA, Goya GF, Santoyo-Salazar J. Direct Polyphenol Attachment on the Surfaces of Magnetite Nanoparticles, Using Vitis vinifera, Vaccinium corymbosum, or Punica granatum. Nanomaterials (Basel) 2023; 13:2450. [PMID: 37686958 PMCID: PMC10490419 DOI: 10.3390/nano13172450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 08/19/2023] [Accepted: 08/24/2023] [Indexed: 09/10/2023]
Abstract
This study presents an alternative approach to directly synthesizing magnetite nanoparticles (MNPs) in the presence of Vitis vinifera, Vaccinium corymbosum, and Punica granatum derived from natural sources (grapes, blueberries, and pomegranates, respectively). A modified co-precipitation method that combines phytochemical techniques was developed to produce semispherical MNPs that range in size from 7.7 to 8.8 nm and are coated with a ~1.5 nm thick layer of polyphenols. The observed structure, composition, and surface properties of the MNPs@polyphenols demonstrated the dual functionality of the phenolic groups as both reducing agents and capping molecules that are bonding with Fe ions on the surfaces of the MNPs via -OH groups. Magnetic force microscopy images revealed the uniaxial orientation of single magnetic domains (SMDs) associated with the inverse spinel structure of the magnetite (Fe3O4). The samples' inductive heating (H0 = 28.9 kA/m, f = 764 kHz), measured via the specific loss power (SLP) of the samples, yielded values of up to 187.2 W/g and showed the influence of the average particle size. A cell viability assessment was conducted via the MTT and NRu tests to estimate the metabolic and lysosomal activities of the MNPs@polyphenols in K562 (chronic myelogenous leukemia, ATCC) cells.
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Affiliation(s)
- Ana E. Matías-Reyes
- Departamento de Física, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, CINVESTAV-IPN, Mexico City 07360, Mexico; (M.L.A.-N.); (M.D.C.-T.)
| | - Margarita L. Alvarado-Noguez
- Departamento de Física, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, CINVESTAV-IPN, Mexico City 07360, Mexico; (M.L.A.-N.); (M.D.C.-T.)
| | - Mario Pérez-González
- Área Académica de Matemáticas y Física, Instituto de Ciencias Básicas e Ingeniería, Universidad Autónoma del Estado de Hidalgo, UAEH, Mineral de la Reforma 42184, Mexico;
| | - Mauricio D. Carbajal-Tinoco
- Departamento de Física, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, CINVESTAV-IPN, Mexico City 07360, Mexico; (M.L.A.-N.); (M.D.C.-T.)
| | - Elizabeth Estrada-Muñiz
- Departamento de Toxicología, Centro de Investigación y de Estudios Avanzados-IPN, Av. IPN No. 2508, Col. San Pedro Zacatenco, Ciudad de México 07360, Mexico (L.V.-L.)
| | - Jesús A. Fuentes-García
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Campus Río Ebro, 50018 Zaragoza, Spain
- Departamento de Física de la Materia Condensada, Facultad de Ciencias, Universidad de Zaragoza, 50009 Zaragoza, Spain
| | - Libia Vega-Loyo
- Departamento de Toxicología, Centro de Investigación y de Estudios Avanzados-IPN, Av. IPN No. 2508, Col. San Pedro Zacatenco, Ciudad de México 07360, Mexico (L.V.-L.)
| | - Sergio A. Tomás
- Departamento de Física, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, CINVESTAV-IPN, Mexico City 07360, Mexico; (M.L.A.-N.); (M.D.C.-T.)
| | - Gerardo F. Goya
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Campus Río Ebro, 50018 Zaragoza, Spain
- Departamento de Física de la Materia Condensada, Facultad de Ciencias, Universidad de Zaragoza, 50009 Zaragoza, Spain
| | - Jaime Santoyo-Salazar
- Departamento de Física, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, CINVESTAV-IPN, Mexico City 07360, Mexico; (M.L.A.-N.); (M.D.C.-T.)
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Moreno Maldonado AC, Goya GF. Comment on "Local Temperature Increments and Induced Cell Death in Intracellular Magnetic Hyperthermia". ACS Nano 2023; 17:15217-15218. [PMID: 37605857 DOI: 10.1021/acsnano.3c04393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 08/23/2023]
Affiliation(s)
- Ana Carolina Moreno Maldonado
- Condensed Matter Physics Department & Instituto de Nanociencia y Materiales de Aragón, Universidad de Zaragoza, Calle Mariano Esquillor s/n. Campus Rio Ebro, 50018 Zaragoza, Spain
| | - Gerardo F Goya
- Condensed Matter Physics Department & Instituto de Nanociencia y Materiales de Aragón, Universidad de Zaragoza, Calle Mariano Esquillor s/n. Campus Rio Ebro, 50018 Zaragoza, Spain
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Quispe LT, Mamani LGL, Baldárrago-Alcántara AA, Félix LL, Goya GF, Fuentes-García JA, Pacheco-Salazar DG, Coaquira JAH. Synthesis and characterization of α-Fe 2O 3nanoparticles showing potential applications for sensing quaternary ammonium vapor at room temperature. Nanotechnology 2022; 33:335704. [PMID: 35508085 DOI: 10.1088/1361-6528/ac6c93] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Accepted: 05/04/2022] [Indexed: 06/14/2023]
Abstract
P-type and n-type metal oxide semiconductors are widely used in the manufacture of gas sensing materials, due to their excellent electronic, electrical and electrocatalytic properties. Hematite (α-Fe2O3) compound has been reported as a promising material for sensing broad types of gases, due to its affordability, good stability and semiconducting properties. In the present work, the efficient and easy-to-implement sol-gel method has been used to synthesizeα-Fe2O3nanoparticles (NPs). The TGA-DSC characterizations of the precursor gel provided information about the phase transformation temperature and the mass percentage of the hematite NPs. X-ray diffraction, transmission electron microscopy and x-ray photoelectron spectroscopy data analyses indicated the formation of two iron oxide phases (hematite and magnetite) when the NPs are subjected to thermal treatment at 400 °C. Meanwhile, only the hematite phase was determined for thermal annealing above 500 °C up to 800 °C. Besides, the crystallite size shows an increasing trend with the thermal annealing and no defined morphology. A clear reduction of surface defects, associated with oxygen vacancies was also evidenced when the annealing temperature was increased, resulting in changes on the electrical properties of hematite NPs. Resistive gas-sensing tests were carried out using hematite NPs + glycerin paste, to detect quaternary ammonium compounds. Room-temperature high sensitivity values (Sr ∼ 4) have been obtained during the detection of ∼1 mM quaternary ammonium compounds vapor. The dependence of the sensitivity on the particle size, the mass ratio of NPs with respect to the organic ligand, changes in the dielectric properties, and the electrical conduction mechanism of gas sensing was discussed.
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Affiliation(s)
- Luis T Quispe
- Laboratorio de Películas Delgadas, Escuela Profesional de Física, Universidad Nacional de San Agustín de Arequipa, Av. Independencia s/n, Arequipa, Perú
| | - L G Luza Mamani
- Laboratorio de Películas Delgadas, Escuela Profesional de Física, Universidad Nacional de San Agustín de Arequipa, Av. Independencia s/n, Arequipa, Perú
| | - A A Baldárrago-Alcántara
- Laboratorio de Películas Delgadas, Escuela Profesional de Física, Universidad Nacional de San Agustín de Arequipa, Av. Independencia s/n, Arequipa, Perú
| | - L León Félix
- Laboratorio de Películas Delgadas, Escuela Profesional de Física, Universidad Nacional de San Agustín de Arequipa, Av. Independencia s/n, Arequipa, Perú
| | - Gerardo F Goya
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, 50018 Zaragoza, Spain & Departamento de Física de la Materia Condensada, Facultad de Ciencias, Universidad de Zaragoza, E-50009 Zaragoza, Spain
| | - J A Fuentes-García
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, 50018 Zaragoza, Spain & Departamento de Física de la Materia Condensada, Facultad de Ciencias, Universidad de Zaragoza, E-50009 Zaragoza, Spain
| | - D G Pacheco-Salazar
- Laboratorio de Películas Delgadas, Escuela Profesional de Física, Universidad Nacional de San Agustín de Arequipa, Av. Independencia s/n, Arequipa, Perú
| | - J A H Coaquira
- Laboratory of Magnetic Characterization, Instituto de Física, Universidade de Brasília, DF 70910-900, Brasília, Brazil
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Pilati V, Gomide G, Gomes RC, Goya GF, Depeyrot J. Colloidal Stability and Concentration Effects on Nanoparticle Heat Delivery for Magnetic Fluid Hyperthermia. Langmuir 2021; 37:1129-1140. [PMID: 33443443 DOI: 10.1021/acs.langmuir.0c03052] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The heat produced by magnetic nanoparticles, when they are submitted to a time-varying magnetic field, has been used in many auspicious biotechnological applications. In the search for better performance in terms of the specific power absorption (SPA) index, researchers have studied the influence of the chemical composition, size and dispersion, shape, and exchange stiffness in morphochemical structures. Monodisperse assemblies of magnetic nanoparticles have been produced using elaborate synthetic procedures, where the product is generally dispersed in organic solvents. However, the colloidal stability of these rough dispersions has not received much attention in these studies, hampering experimental determination of the SPA. To investigate the influence of colloidal stability on the heating response of ferrofluids, we produced bimagnetic core@shell NPs chemically composed of a ZnMn mixed ferrite core covered by a maghemite shell. Aqueous ferrofluids were prepared with these samples using the electric double layer (EDL) as a strategy to maintain colloidal stability. By starting from a proper sample, ultrastable concentrated ferrofluids were achieved by both tuning the ion/counterion ratio and controlling the water content. As the colloidal stability mainly depends on the ion configuration on the surface of the magnetic nanoparticles, different levels of nanoparticle clustering are achieved by changing the ionic force and pH of the medium. Thus, the samples were submitted to two procedures of EDL destabilization, which involved dilution with an alkaline solution and a neutral pH viscous medium. The SPA results of all prepared ferrofluid samples show a reduction of up to half the efficiency of the standard sample when the ferrofluids are in a neutral pH or concentrated regime. Such results are explained in terms of magnetic dipolar interactions. Our results point to the importance of ferrofluid colloidal stability in a more reliable experimental determination of the NP heat generation performance.
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Affiliation(s)
- Vanessa Pilati
- Complex Fluids Group, Instituto de Física, Universidade de Brasília, Caixa Postal 04455, 70919-970 Brasília, Federal District, Brazil
| | - Guilherme Gomide
- Complex Fluids Group, Instituto de Física, Universidade de Brasília, Caixa Postal 04455, 70919-970 Brasília, Federal District, Brazil
| | - Rafael Cabreira Gomes
- Departamento de Física, Universidade Federal de Santa Catarina, 88040-900 Florianópolis, Santa Catarina, Brazil
| | - Gerardo F Goya
- Instituto de Nanociencia y Materiales de Aragón (INMA), Universidad de Zaragoza, 50018 Zaragoza, Spain
| | - Jérôme Depeyrot
- Complex Fluids Group, Instituto de Física, Universidade de Brasília, Caixa Postal 04455, 70919-970 Brasília, Federal District, Brazil
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Fuentes-García JA, Santoyo-Salzar J, Rangel-Cortes E, Goya GF, Cardozo-Mata V, Pescador-Rojas JA. Effect of ultrasonic irradiation power on sonochemical synthesis of gold nanoparticles. Ultrason Sonochem 2021; 70:105274. [PMID: 32771910 PMCID: PMC7786535 DOI: 10.1016/j.ultsonch.2020.105274] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 07/13/2020] [Accepted: 07/21/2020] [Indexed: 05/12/2023]
Abstract
In this work, optimized size distribution and optical properties in the colloidal synthesis of gold nanoparticles (GNPs) were obtained using a proposed ultrasonic irradiation assisted Turkevich-Frens method. The effect of three nominal ultrasound (20 kHz) irradiation powers: 60, 150, and 210 W have been analyzed as size and shape control parameters. The GNPs colloidal solutions were obtained from chloroauric acid (HAuCl4) and trisodium citrate (C6H5Na3O7·2H2O) under continuous irradiation for 1 h without any additional heat or stirring. The surface plasmon resonance (SPR) was monitored in the UV-Vis spectra every 10 min to found the optimal time for localized SPR wavelength (λLSPR), and the 210 sample procedure has reduced the λLSPR localization at 20 min, while 150 and 60 samples have showed λLSPR at 60 min. The nucleation and growth of GNPs showed changes in shape and size distribution associated with physical (cavitation, temperature) and chemical (radical generation, pH) conditions in the aqueous solution. The results showed quasi-spherical GNPs as pentakis dodecahedron (λLSPR = 560 nm), triakis icosahedron (λLSPR = 535 nm), and tetrakis hexahedron (λLSPR = 525 nm) in a size range from 12 to 16 nm. Chemical effects of ultrasound irradiation were suggested in the disproportionation process, electrons of AuCl2- are rapidly exchanged through the gold surface. After AuCl4- and Cl- were desorbed, a tetrachloroaurate complex was recycled for the two-electron reduction by citrate, aurophilic interaction between complexes AuCl2-, electrons exchange, and gold seeds, the deposition of new gold atoms on the surface promoting the growth of GNPs. These mechanisms are enhanced by the effects of ultrasound, such as cavitation and transmitted energy into the solution. These results show that the plasmonic response from the reported GNPs can be tuned using a simple methodology with minimum infrastructure requirements. Moreover, the production method could be easily scalable to meet industrial manufacturing needs.
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Affiliation(s)
- J A Fuentes-García
- Instituto de Nanociencia de Aragón (INA) , Universidad de Zaragoza, 50018 Zaragoza, Spain; Unidad Profesional Interdisciplinaria en Ingeniería y Tecnologías Avanzadas del Instituto Politécnico Nacional, UPIITA-IPN, Av. IPN 2580, Ticomán 07340, Mexico
| | - J Santoyo-Salzar
- Departamento de Física, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, CINVESTAV-IPN, Av. IPN 2508, Zacatenco 07360, Mexico
| | - E Rangel-Cortes
- Universidad Autónoma del Estado de Hidalgo, Escuela Superior de Apan, Carretera Apan-Calpulalpan Km.8, Col. Chimalpa, 43920 Apan, Hgo., Mexico
| | - G F Goya
- Instituto de Nanociencia de Aragón (INA) , Universidad de Zaragoza, 50018 Zaragoza, Spain; Departamento de Física de la Materia Condensada, Facultad de Ciencias, Universidad de Zaragoza, 50009 Zaragoza, Spain
| | - V Cardozo-Mata
- Universidad Autónoma del Estado de Hidalgo, Escuela Superior de Apan, Carretera Apan-Calpulalpan Km.8, Col. Chimalpa, 43920 Apan, Hgo., Mexico
| | - J A Pescador-Rojas
- Universidad Autónoma del Estado de Hidalgo, Escuela Superior de Apan, Carretera Apan-Calpulalpan Km.8, Col. Chimalpa, 43920 Apan, Hgo., Mexico.
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9
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Peñate Medina T, Gerle M, Humbert J, Chu H, Köpnick AL, Barkmann R, Garamus VM, Sanz B, Purcz N, Will O, Appold L, Damm T, Suojanen J, Arnold P, Lucius R, Willumeit-Römer R, Açil Y, Wiltfang J, Goya GF, Glüer CC, Peñate Medina O. Lipid-Iron Nanoparticle with a Cell Stress Release Mechanism Combined with a Local Alternating Magnetic Field Enables Site-Activated Drug Release. Cancers (Basel) 2020; 12:cancers12123767. [PMID: 33327621 PMCID: PMC7765112 DOI: 10.3390/cancers12123767] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 12/02/2020] [Accepted: 12/02/2020] [Indexed: 11/16/2022] Open
Abstract
Most available cancer chemotherapies are based on systemically administered small organic molecules, and only a tiny fraction of the drug reaches the disease site. The approach causes significant side effects and limits the outcome of the therapy. Targeted drug delivery provides an alternative to improve the situation. However, due to the poor release characteristics of the delivery systems, limitations remain. This report presents a new approach to address the challenges using two fundamentally different mechanisms to trigger the release from the liposomal carrier. We use an endogenous disease marker, an enzyme, combined with an externally applied magnetic field, to open the delivery system at the correct time only in the disease site. This site-activated release system is a novel two-switch nanomachine that can be regulated by a cell stress-induced enzyme at the cellular level and be remotely controlled using an applied magnetic field. We tested the concept using sphingomyelin-containing liposomes encapsulated with indocyanine green, fluorescent marker, or the anticancer drug cisplatin. We engineered the liposomes by adding paramagnetic beads to act as a receiver of outside magnetic energy. The developed multifunctional liposomes were characterized in vitro in leakage studies and cell internalization studies. The release system was further studied in vivo in imaging and therapy trials using a squamous cell carcinoma tumor in the mouse as a disease model. In vitro studies showed an increased release of loaded material when stress-related enzyme and magnetic field was applied to the carrier liposomes. The theranostic liposomes were found in tumors, and the improved therapeutic effect was shown in the survival studies.
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Affiliation(s)
- Tuula Peñate Medina
- Section Biomedical Imaging, Department of Radiology and Neuroradiology Universitätsklinikum Schleswig-Holstein Campus Kiel, Christian Albrechts Universität zu Kiel, 24105 Kiel, Germany; (T.P.M.); (J.H.); (A.-L.K.); (R.B.); (O.W.); (T.D.); (C.C.G.)
- Institute for Experimental Cancer Research, Christian-Albrechts-University Kiel, 24105 Kiel, Germany;
| | - Mirko Gerle
- Klinik für Mund-, Kiefer- und Gesichtschirurgie, Universitätsklinikum Schleswig-Holstein Campus Kiel, Christian Albrechts Universität zu Kiel, 24105 Kiel, Germany; (M.G.); (H.C.); (N.P.); (Y.A.); (J.W.)
| | - Jana Humbert
- Section Biomedical Imaging, Department of Radiology and Neuroradiology Universitätsklinikum Schleswig-Holstein Campus Kiel, Christian Albrechts Universität zu Kiel, 24105 Kiel, Germany; (T.P.M.); (J.H.); (A.-L.K.); (R.B.); (O.W.); (T.D.); (C.C.G.)
| | - Hanwen Chu
- Klinik für Mund-, Kiefer- und Gesichtschirurgie, Universitätsklinikum Schleswig-Holstein Campus Kiel, Christian Albrechts Universität zu Kiel, 24105 Kiel, Germany; (M.G.); (H.C.); (N.P.); (Y.A.); (J.W.)
- Department of Oral and Maxillofacial Surgery, Second Affiliated Hospital, Zhejiang University, Hangzhou 310058, China
| | - Anna-Lena Köpnick
- Section Biomedical Imaging, Department of Radiology and Neuroradiology Universitätsklinikum Schleswig-Holstein Campus Kiel, Christian Albrechts Universität zu Kiel, 24105 Kiel, Germany; (T.P.M.); (J.H.); (A.-L.K.); (R.B.); (O.W.); (T.D.); (C.C.G.)
- Institute for Experimental Cancer Research, Christian-Albrechts-University Kiel, 24105 Kiel, Germany;
| | - Reinhard Barkmann
- Section Biomedical Imaging, Department of Radiology and Neuroradiology Universitätsklinikum Schleswig-Holstein Campus Kiel, Christian Albrechts Universität zu Kiel, 24105 Kiel, Germany; (T.P.M.); (J.H.); (A.-L.K.); (R.B.); (O.W.); (T.D.); (C.C.G.)
| | - Vasil M. Garamus
- Helmholtz-Zentrum Geesthacht, Zentrum für Material- und Küstenforschung GmbH, Max Planck Straße 1, 21502 Geesthacht, Germany; (V.M.G.); (R.W.-R.)
| | - Beatriz Sanz
- Institute of Nanoscience of Aragon (INA) and Condensed Matter Physics Dept., University of Zaragoza, C.P. 50.018 Zaragoza, Spain; (B.S.); (G.F.G.)
| | - Nicolai Purcz
- Klinik für Mund-, Kiefer- und Gesichtschirurgie, Universitätsklinikum Schleswig-Holstein Campus Kiel, Christian Albrechts Universität zu Kiel, 24105 Kiel, Germany; (M.G.); (H.C.); (N.P.); (Y.A.); (J.W.)
| | - Olga Will
- Section Biomedical Imaging, Department of Radiology and Neuroradiology Universitätsklinikum Schleswig-Holstein Campus Kiel, Christian Albrechts Universität zu Kiel, 24105 Kiel, Germany; (T.P.M.); (J.H.); (A.-L.K.); (R.B.); (O.W.); (T.D.); (C.C.G.)
| | - Lia Appold
- Institute for Experimental Cancer Research, Christian-Albrechts-University Kiel, 24105 Kiel, Germany;
| | - Timo Damm
- Section Biomedical Imaging, Department of Radiology and Neuroradiology Universitätsklinikum Schleswig-Holstein Campus Kiel, Christian Albrechts Universität zu Kiel, 24105 Kiel, Germany; (T.P.M.); (J.H.); (A.-L.K.); (R.B.); (O.W.); (T.D.); (C.C.G.)
| | - Juho Suojanen
- Cleft Palate and Craniofacial Center, Department of Plastic Surgery, Helsinki University Hospital, 00029 HUS Helsinki, Finland;
- Päijät-Häme Joint Authority for Health and Wellbeing, Department of Oral and Maxillo-Facial Surgery, 15850 Lahti, Finland
| | - Philipp Arnold
- Anatomical Institute, Christian-Albrechts-University Kiel, 24105 Kiel, Germany or (P.A.); (R.L.)
| | - Ralph Lucius
- Anatomical Institute, Christian-Albrechts-University Kiel, 24105 Kiel, Germany or (P.A.); (R.L.)
| | - Regina Willumeit-Römer
- Helmholtz-Zentrum Geesthacht, Zentrum für Material- und Küstenforschung GmbH, Max Planck Straße 1, 21502 Geesthacht, Germany; (V.M.G.); (R.W.-R.)
| | - Yahya Açil
- Klinik für Mund-, Kiefer- und Gesichtschirurgie, Universitätsklinikum Schleswig-Holstein Campus Kiel, Christian Albrechts Universität zu Kiel, 24105 Kiel, Germany; (M.G.); (H.C.); (N.P.); (Y.A.); (J.W.)
| | - Joerg Wiltfang
- Klinik für Mund-, Kiefer- und Gesichtschirurgie, Universitätsklinikum Schleswig-Holstein Campus Kiel, Christian Albrechts Universität zu Kiel, 24105 Kiel, Germany; (M.G.); (H.C.); (N.P.); (Y.A.); (J.W.)
| | - Gerardo F. Goya
- Institute of Nanoscience of Aragon (INA) and Condensed Matter Physics Dept., University of Zaragoza, C.P. 50.018 Zaragoza, Spain; (B.S.); (G.F.G.)
| | - Claus C. Glüer
- Section Biomedical Imaging, Department of Radiology and Neuroradiology Universitätsklinikum Schleswig-Holstein Campus Kiel, Christian Albrechts Universität zu Kiel, 24105 Kiel, Germany; (T.P.M.); (J.H.); (A.-L.K.); (R.B.); (O.W.); (T.D.); (C.C.G.)
| | - Oula Peñate Medina
- Section Biomedical Imaging, Department of Radiology and Neuroradiology Universitätsklinikum Schleswig-Holstein Campus Kiel, Christian Albrechts Universität zu Kiel, 24105 Kiel, Germany; (T.P.M.); (J.H.); (A.-L.K.); (R.B.); (O.W.); (T.D.); (C.C.G.)
- Institute for Experimental Cancer Research, Christian-Albrechts-University Kiel, 24105 Kiel, Germany;
- Correspondence: ; Tel.: +491605559588
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10
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Fabris F, Lohr J, Lima E, de Almeida AA, Troiani HE, Rodríguez LM, Vásquez Mansilla M, Aguirre MH, Goya GF, Rinaldi D, Ghirri A, Peddis D, Fiorani D, Zysler RD, De Biasi E, Winkler EL. Adjusting the Néel relaxation time of Fe 3O 4/Zn x Co 1-x Fe 2O 4 core/shell nanoparticles for optimal heat generation in magnetic hyperthermia. Nanotechnology 2020; 32:065703. [PMID: 33210620 DOI: 10.1088/1361-6528/abc386] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
In this work it is shown a precise way to optimize the heat generation in high viscosity magnetic colloids, by adjusting the Néel relaxation time in core/shell bimagnetic nanoparticles, for magnetic fluid hyperthermia (MFH) applications. To pursue this goal, Fe3O4/Zn x Co1-x Fe2O4 core/shell nanoparticles were synthesized with 8.5 nm mean core diameter, encapsulated in a shell of ∼1.1 nm of thickness, where the Zn atomic ratio (Zn/(Zn + Co) at%) changes from 33 to 68 at%. The magnetic measurements are consistent with a rigid interface coupling between the core and shell phases, where the effective magnetic anisotropy systematically decreases when the Zn concentration increases, without a significant change of the saturation magnetization. Experiments of MFH of 0.1 wt% of these particles dispersed in water, in Dulbecco modified Eagles minimal essential medium, and a high viscosity butter oil, result in a large specific loss power (SLP), up to 150 W g-1, when the experiments are performed at 571 kHz and 200 Oe. The SLP was optimized adjusting the shell composition, showing a maximum for intermediate Zn concentration. This study shows a way to maximize the heat generation in viscous media like cytosol, for those biomedical applications that require smaller particle sizes.
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Affiliation(s)
- Fernando Fabris
- Instituto de Nanociencia y Nanotecnología CNEA-CONICET-Centro Atómico Bariloche, S. C. de Bariloche, 8400, Argentina
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11
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Blokpoel Ferreras LA, Scott D, Vazquez Reina S, Roach P, Torres TE, Goya GF, Shakesheff KM, Dixon JE. Enhanced Cellular Transduction of Nanoparticles Resistant to Rapidly Forming Plasma Protein Coronas. ACTA ACUST UNITED AC 2020; 4:e2000162. [PMID: 32924327 DOI: 10.1002/adbi.202000162] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 08/06/2020] [Indexed: 12/17/2022]
Abstract
Nanoparticles (NPs) are increasingly being developed as biomedical platforms for drug/nucleic acid delivery and imaging. However, in biological fluids, NPs interact with a wide range of proteins that form a coating known as protein corona. Coronae can critically influence self-interaction and binding of other molecules, which can affect toxicity, promote cell activation, and inhibit general or specific cellular uptake. Glycosaminoglycan (GAG)-binding enhanced transduction (GET) is developed to efficiently deliver a variety of cargoes intracellularly; employing GAG-binding peptides, which promote cell targeting, and cell penetrating peptides (CPPs) which enhance endocytotic cell internalization. Herein, it is demonstrated that GET peptide coatings can mediate sustained intracellular transduction of magnetic NPs (MNPs), even in the presence of serum or plasma. NP colloidal stability, physicochemical properties, toxicity and cellular uptake are investigated. Using label-free snapshot proteomics, time-resolved profiles of human plasma coronas formed on functionalized GET-MNPs demonstrate that coronae quickly form (<1 min), with their composition relatively stable but evolving. Importantly GET-MNPs present a subtly different corona composition to MNPs alone, consistent with GAG-binding activities. Understanding how NPs interact with biological systems and can retain enhanced intracellular transduction will facilitate novel drug delivery approaches for cell-type specific targeting of new nanomaterials.
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Affiliation(s)
- Lia A Blokpoel Ferreras
- Regenerative Medicine and Cellular Therapies Division, The University of Nottingham Biodiscovery Institute (BDI), School of Pharmacy, University of Nottingham, Nottingham, NG7 2RD, UK
| | - Daniel Scott
- School of Life Sciences, University of Nottingham, Nottingham, NG7 2RD, UK
| | - Saul Vazquez Reina
- School of Veterinary Sciences, University of Nottingham, Nottingham, NG7 2RD, UK
| | - Paul Roach
- Department of Chemistry, Loughborough University, Leicestershire, LE11 3TU, UK
| | - Teobaldo E Torres
- Institute of Nanoscience of Aragón, University of Zaragoza, 50009, Zaragoza, Spain
| | - Gerardo F Goya
- Institute of Nanoscience of Aragón, University of Zaragoza, 50009, Zaragoza, Spain
| | - Kevin M Shakesheff
- Regenerative Medicine and Cellular Therapies Division, The University of Nottingham Biodiscovery Institute (BDI), School of Pharmacy, University of Nottingham, Nottingham, NG7 2RD, UK
| | - James E Dixon
- Regenerative Medicine and Cellular Therapies Division, The University of Nottingham Biodiscovery Institute (BDI), School of Pharmacy, University of Nottingham, Nottingham, NG7 2RD, UK
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12
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Fernandez JJ, Torres TE, Martin-Solana E, Goya GF, Fernandez-Fernandez MR. PolishEM: image enhancement in FIB-SEM. Bioinformatics 2020; 36:3947-3948. [PMID: 32221611 DOI: 10.1093/bioinformatics/btaa218] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 02/17/2020] [Accepted: 03/24/2020] [Indexed: 11/12/2022] Open
Abstract
SUMMARY We have developed a software tool to improve the image quality in focused ion beam-scanning electron microscopy (FIB-SEM) stacks: PolishEM. Based on a Gaussian blur model, it automatically estimates and compensates for the blur affecting each individual image. It also includes correction for artifacts commonly arising in FIB-SEM (e.g. curtaining). PolishEM has been optimized for an efficient processing of huge FIB-SEM stacks on standard computers. AVAILABILITY AND IMPLEMENTATION PolishEM has been developed in C. GPL source code and binaries for Linux, OSX and Windows are available at http://www.cnb.csic.es/%7ejjfernandez/polishem. SUPPLEMENTARY INFORMATION Supplementary data are available at Bioinformatics online.
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Affiliation(s)
| | - Teobaldo E Torres
- Instituto de Nanociencia de Aragón.,Laboratorio de Microscopías Avanzadas
| | - Eva Martin-Solana
- Consejo Superior de Investigaciones Científicas (CNB-CSIC), Madrid, 28049 Spain
| | - Gerardo F Goya
- Instituto de Nanociencia de Aragón.,Departamento de Física de la Materia Condensada, Universidad de Zaragoza, Zaragoza, 50009 Spain
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13
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Makharza SA, Cirillo G, Vittorio O, Valli E, Voli F, Farfalla A, Curcio M, Iemma F, Nicoletta FP, El-Gendy AA, Goya GF, Hampel S. Magnetic Graphene Oxide Nanocarrier for Targeted Delivery of Cisplatin: A Perspective for Glioblastoma Treatment. Pharmaceuticals (Basel) 2019; 12:E76. [PMID: 31109098 PMCID: PMC6631527 DOI: 10.3390/ph12020076] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Revised: 05/10/2019] [Accepted: 05/16/2019] [Indexed: 12/19/2022] Open
Abstract
Selective vectorization of Cisplatin (CisPt) to Glioblastoma U87 cells was exploited by the fabrication of a hybrid nanocarrier composed of magnetic γ-Fe2O3 nanoparticles and nanographene oxide (NGO). The magnetic component, obtained by annealing magnetite Fe3O4 and characterized by XRD measurements, was combined with NGO sheets prepared via a modified Hummer's method. The morphological and thermogravimetric analysis proved the effective binding of γ-Fe2O3 nanoparticles onto NGO layers. The magnetization measured under magnetic fields up to 7 Tesla at room temperature revealed superparamagnetic-like behavior with a maximum value of MS = 15 emu/g and coercivity HC ≈ 0 Oe within experimental error. The nanohybrid was found to possess high affinity towards CisPt, and a rather slow fractional release profile of 80% after 250 h. Negligible toxicity was observed for empty nanoparticles, while the retainment of CisPt anticancer activity upon loading into the carrier was observed, together with the possibility to spatially control the drug delivery at a target site.
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Affiliation(s)
- Sami A Makharza
- Leibniz Institute of Solid State and Material Research Dresden, 01069 Dresden, Germany.
- College of Pharmacy and Medical Sciences, Hebron University, Hebron 00970, Palestine.
| | - Giuseppe Cirillo
- Leibniz Institute of Solid State and Material Research Dresden, 01069 Dresden, Germany.
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Rende (CS), 87036 Rende, Italy.
| | - Orazio Vittorio
- Children's Cancer Institute, Lowy Cancer Research Centre, UNSW Sydney, Sydney 2031, Australia.
- ARC Centre of Excellence for Convergent BioNano Science and Technology, Australian Centre for NanoMedicine, UNSW Sydney, Sydney 2052, Australia.
- School of Women's and Children's Health, Faculty of Medicine, UNSW Sydney, Sydney 2052, Australia.
| | - Emanuele Valli
- Children's Cancer Institute, Lowy Cancer Research Centre, UNSW Sydney, Sydney 2031, Australia.
- School of Women's and Children's Health, Faculty of Medicine, UNSW Sydney, Sydney 2052, Australia.
| | - Florida Voli
- Children's Cancer Institute, Lowy Cancer Research Centre, UNSW Sydney, Sydney 2031, Australia.
| | - Annafranca Farfalla
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Rende (CS), 87036 Rende, Italy.
| | - Manuela Curcio
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Rende (CS), 87036 Rende, Italy.
| | - Francesca Iemma
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Rende (CS), 87036 Rende, Italy.
| | - Fiore Pasquale Nicoletta
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Rende (CS), 87036 Rende, Italy.
| | - Ahmed A El-Gendy
- Department of Physics, University of Texas at El Paso, El Paso, TX 79968, USA.
| | - Gerardo F Goya
- Institute of Nanoscience of Aragon (INA) & Department of Condensed Matter Physics, University of Zaragoza, 50018 Zaragoza, Spain.
| | - Silke Hampel
- Leibniz Institute of Solid State and Material Research Dresden, 01069 Dresden, Germany.
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14
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León Félix L, Sanz B, Sebastián V, Torres TE, Sousa MH, Coaquira JAH, Ibarra MR, Goya GF. Gold-decorated magnetic nanoparticles design for hyperthermia applications and as a potential platform for their surface-functionalization. Sci Rep 2019; 9:4185. [PMID: 30862882 PMCID: PMC6414712 DOI: 10.1038/s41598-019-40769-2] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Accepted: 02/11/2019] [Indexed: 11/09/2022] Open
Abstract
The integration of noble metal and magnetic nanoparticles with controlled structures that can couple various specific effects to the different nanocomposite in multifunctional nanosystems have been found interesting in the field of medicine. In this work, we show synthesis route to prepare small Au nanoparticles of sizes = 3.9 ± 0.2 nm attached to Fe3O4 nanoparticle cores ( = 49.2 ± 3.5 nm) in aqueous medium for potential application as a nano-heater. Remarkably, the resulted Au decorated PEI-Fe3O4 (Au@PEI-Fe3O4) nanoparticles are able to retain bulk magnetic moment MS = 82-84 Am2/kgFe3O4, with the Verwey transition observed at TV = 98 K. In addition, the in vitro cytotoxicity analysis of the nanosystem microglial BV2 cells showed high viability (>97.5%) to concentrate up to 100 µg/mL in comparison to the control samples. In vitro heating experiments on microglial BV2 cells under an ac magnetic field (H0 = 23.87 kA/m; f = 571 kHz) yielded specific power absorption (SPA) values of SPA = 43 ± 3 and 49 ± 1 μW/cell for PEI-Fe3O4 and Au@PEI-Fe3O4 NPs, respectively. These similar intracellular SPA values imply that functionalization of the magnetic particles with Au did not change the heating efficiency, providing at the same time a more flexible platform for multifunctional functionalization.
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Affiliation(s)
- L León Félix
- Laboratory of Magnetic Characterization, Instituto de Física, Universidade de Brasília, Brasília, DF, 70910-900, Brazil.
- Instituto de Nanociencia de Aragón (INA), Universidad de Zaragoza, Zaragoza, 50018, Spain.
| | - B Sanz
- nB nanoScale Biomagnetics S.L., Zaragoza, Spain
| | - V Sebastián
- Instituto de Nanociencia de Aragón (INA), Universidad de Zaragoza, Zaragoza, 50018, Spain
- Networking Research Centre on Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, 28029, Madrid, Spain
| | - T E Torres
- Instituto de Nanociencia de Aragón (INA), Universidad de Zaragoza, Zaragoza, 50018, Spain
- Laboratorio de Microscopias Avanzadas (LMA), Universidad de Zaragoza, Zaragoza, 50018, Spain
| | - M H Sousa
- Green Nanotechnology Group, University of Brasília, Brasília, DF, 72220-900, Brazil
| | - J A H Coaquira
- Laboratory of Magnetic Characterization, Instituto de Física, Universidade de Brasília, Brasília, DF, 70910-900, Brazil
| | - M R Ibarra
- Instituto de Nanociencia de Aragón (INA), Universidad de Zaragoza, Zaragoza, 50018, Spain
- Departamento de Física de la Materia Condensada, Universidad de Zaragoza, Zaragoza, 50009, Spain
| | - G F Goya
- Instituto de Nanociencia de Aragón (INA), Universidad de Zaragoza, Zaragoza, 50018, Spain.
- Departamento de Física de la Materia Condensada, Universidad de Zaragoza, Zaragoza, 50009, Spain.
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15
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Torres TE, Lima E, Calatayud MP, Sanz B, Ibarra A, Fernández-Pacheco R, Mayoral A, Marquina C, Ibarra MR, Goya GF. The relevance of Brownian relaxation as power absorption mechanism in Magnetic Hyperthermia. Sci Rep 2019; 9:3992. [PMID: 30850704 PMCID: PMC6408542 DOI: 10.1038/s41598-019-40341-y] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Accepted: 12/03/2018] [Indexed: 11/26/2022] Open
Abstract
The Linear Response Theory (LRT) is a widely accepted framework to analyze the power absorption of magnetic nanoparticles for magnetic fluid hyperthermia. Its validity is restricted to low applied fields and/or to highly anisotropic magnetic nanoparticles. Here, we present a systematic experimental analysis and numerical calculations of the specific power absorption for highly anisotropic cobalt ferrite (CoFe2O4) magnetic nanoparticles with different average sizes and in different viscous media. The predominance of Brownian relaxation as the origin of the magnetic losses in these particles is established, and the changes of the Specific Power Absorption (SPA) with the viscosity of the carrier liquid are consistent with the LRT approximation. The impact of viscosity on SPA is relevant for the design of MNPs to heat the intracellular medium during in vitro and in vivo experiments. The combined numerical and experimental analyses presented here shed light on the underlying mechanisms that make highly anisotropic MNPs unsuitable for magnetic hyperthermia.
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Affiliation(s)
- Teobaldo E Torres
- Instituto de Nanociencia de Aragón (INA), Universidad de Zaragoza, C/Mariano Esquillor s/n, CP 50018, Zaragoza, Spain. .,Laboratorio de Microscopias Avanzadas (LMA), Universidad de Zaragoza, C/Mariano Esquillor s/n, CP 50018, Zaragoza, Spain.
| | - Enio Lima
- Div. Resonancias Magnéticas, Centro Atómico de Bariloche/CONICET, S.C 8400, Bariloche, Argentina
| | - M Pilar Calatayud
- Instituto de Nanociencia de Aragón (INA), Universidad de Zaragoza, C/Mariano Esquillor s/n, CP 50018, Zaragoza, Spain
| | - Beatriz Sanz
- Instituto de Nanociencia de Aragón (INA), Universidad de Zaragoza, C/Mariano Esquillor s/n, CP 50018, Zaragoza, Spain
| | - Alfonso Ibarra
- Instituto de Nanociencia de Aragón (INA), Universidad de Zaragoza, C/Mariano Esquillor s/n, CP 50018, Zaragoza, Spain.,Laboratorio de Microscopias Avanzadas (LMA), Universidad de Zaragoza, C/Mariano Esquillor s/n, CP 50018, Zaragoza, Spain
| | - Rodrigo Fernández-Pacheco
- Instituto de Nanociencia de Aragón (INA), Universidad de Zaragoza, C/Mariano Esquillor s/n, CP 50018, Zaragoza, Spain.,Laboratorio de Microscopias Avanzadas (LMA), Universidad de Zaragoza, C/Mariano Esquillor s/n, CP 50018, Zaragoza, Spain
| | - Alvaro Mayoral
- School of Physical Science and Technology, Shanghai Tech University. 393 Middle Huaxia Road, 201210, Pudong, Shanghai, China
| | - Clara Marquina
- Departamento de Física de la Materia Condensada, Facultad de Ciencias, Universidad de Zaragoza, CP 50009, Zaragoza, Spain.,Instituto de Ciencias de Materiales de Aragón (ICMA), Consejo Superior de Investigaciones Científicas (CSIC) - Universidad de Zaragoza, Zaragoza, Spain
| | - M Ricardo Ibarra
- Instituto de Nanociencia de Aragón (INA), Universidad de Zaragoza, C/Mariano Esquillor s/n, CP 50018, Zaragoza, Spain.,Laboratorio de Microscopias Avanzadas (LMA), Universidad de Zaragoza, C/Mariano Esquillor s/n, CP 50018, Zaragoza, Spain.,Departamento de Física de la Materia Condensada, Facultad de Ciencias, Universidad de Zaragoza, CP 50009, Zaragoza, Spain
| | - Gerardo F Goya
- Instituto de Nanociencia de Aragón (INA), Universidad de Zaragoza, C/Mariano Esquillor s/n, CP 50018, Zaragoza, Spain.,Departamento de Física de la Materia Condensada, Facultad de Ciencias, Universidad de Zaragoza, CP 50009, Zaragoza, Spain
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16
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Fabris F, Lima E, De Biasi E, Troiani HE, Vásquez Mansilla M, Torres TE, Fernández Pacheco R, Ibarra MR, Goya GF, Zysler RD, Winkler EL. Controlling the dominant magnetic relaxation mechanisms for magnetic hyperthermia in bimagnetic core-shell nanoparticles. Nanoscale 2019; 11:3164-3172. [PMID: 30520920 DOI: 10.1039/c8nr07834c] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
We report a simple and effective way to control the heat generation of a magnetic colloid under alternate magnetic fields by changing the shell composition of bimagnetic core-shell Fe3O4/ZnxCo1-xFe2O4 nanoparticles. The core-shell structure constitutes a magnetically-coupled biphase system, with an effective anisotropy that can be tuned by the substitution of Co2+ by Zn2+ ions in the shell. Magnetic hyperthermia experiments of nanoparticles dispersed in hexane and butter oil showed that the magnetic relaxation is dominated by Brown relaxation mechanism in samples with higher anisotropy (i.e., larger concentration of Co within the shell) yielding high specific power absorption values in low viscosity media as hexane. Increasing the Zn concentration of the shell, diminishes the magnetic anisotropy, which results in a change to a Néel relaxation that dominates the process when the nanoparticles are dispersed in a high-viscosity medium. We demonstrate that tuning the Zn contents at the shell of these exchange-coupled core/shell nanoparticles provides a way to control the magnetic anisotropy without loss of saturation magnetization. This ability is an essential prerequisite for most biomedical applications, where high viscosities and capturing mechanisms are present.
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Affiliation(s)
- Fernando Fabris
- Instituto de Nanociencia y Nanotecnología, CNEA, CONICET, Centro Atómico Bariloche, Av. Bustillo 9500 (8400) S. C. Bariloche, Argentina.
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17
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Lerra L, Farfalla A, Sanz B, Cirillo G, Vittorio O, Voli F, Le Grand M, Curcio M, Nicoletta FP, Dubrovska A, Hampel S, Iemma F, Goya GF. Graphene Oxide Functional Nanohybrids with Magnetic Nanoparticles for Improved Vectorization of Doxorubicin to Neuroblastoma Cells. Pharmaceutics 2018; 11:E3. [PMID: 30583524 PMCID: PMC6359315 DOI: 10.3390/pharmaceutics11010003] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Revised: 12/14/2018] [Accepted: 12/18/2018] [Indexed: 01/18/2023] Open
Abstract
With the aim to obtain a site-specific doxorubicin (DOX) delivery in neuroblastoma SH-SY5Y cells, we designed an hybrid nanocarrier combining graphene oxide (GO) and magnetic iron oxide nanoparticles (MNPs), acting as core elements, and a curcumin⁻human serum albumin conjugate as functional coating. The nanohybrid, synthesized by redox reaction between the MNPs@GO system and albumin bioconjugate, consisted of MNPs@GO nanosheets homogeneously coated by the bioconjugate as verified by SEM investigations. Drug release experiments showed a pH-responsive behavior with higher release amounts in acidic (45% at pH 5.0) vs. neutral (28% at pH 7.4) environments. Cell internalization studies proved the presence of nanohybrid inside SH-SY5Y cytoplasm. The improved efficacy obtained in viability assays is given by the synergy of functional coating and MNPs constituting the nanohybrids: while curcumin moieties were able to keep low DOX cytotoxicity levels (at concentrations of 0.44⁻0.88 µM), the presence of MNPs allowed remote actuation on the nanohybrid by a magnetic field, increasing the dose delivered at the target site.
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Affiliation(s)
- Luigi Lerra
- Children's Cancer Institute, Lowy Cancer Research Centre, UNSW Sydney, NSW 2031, Australia.
| | - Annafranca Farfalla
- Department of Pharmacy Health and Nutritional Science, University of Calabria, 87036 Rende (CS), Italy.
| | - Beatriz Sanz
- nB nanoSacale Biomagnetics SL, 50012 Zaragoza, Spain.
| | - Giuseppe Cirillo
- Department of Pharmacy Health and Nutritional Science, University of Calabria, 87036 Rende (CS), Italy.
| | - Orazio Vittorio
- Children's Cancer Institute, Lowy Cancer Research Centre, UNSW Sydney, NSW 2031, Australia.
- ARC Centre of Excellence for Convergent BioNano Science and Technology, Australian Centre for NanoMedicine, UNSW Sydney, NSW 2052, Australia.
- School of Women's and Children's Health, Faculty of Medicine, UNSW Sydney, NSW 2052, Australia.
| | - Florida Voli
- Children's Cancer Institute, Lowy Cancer Research Centre, UNSW Sydney, NSW 2031, Australia.
| | - Marion Le Grand
- Children's Cancer Institute, Lowy Cancer Research Centre, UNSW Sydney, NSW 2031, Australia.
- ARC Centre of Excellence for Convergent BioNano Science and Technology, Australian Centre for NanoMedicine, UNSW Sydney, NSW 2052, Australia.
- School of Women's and Children's Health, Faculty of Medicine, UNSW Sydney, NSW 2052, Australia.
| | - Manuela Curcio
- Department of Pharmacy Health and Nutritional Science, University of Calabria, 87036 Rende (CS), Italy.
| | - Fiore Pasquale Nicoletta
- Department of Pharmacy Health and Nutritional Science, University of Calabria, 87036 Rende (CS), Italy.
| | - Anna Dubrovska
- OncoRay-National Center for Radiation Research in Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, 01307 Dresden, Germany.
- German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany.
- German Cancer Consortium (DKTK), partner site Dresden, 01307 Dresden, Germany.
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Radiooncology-Oncoray, 01307 Dresden, Germany.
| | - Silke Hampel
- Leibniz Institute of Solid State and Material Research Dresden, 01069 Dresden, Germany.
| | - Francesca Iemma
- Department of Pharmacy Health and Nutritional Science, University of Calabria, 87036 Rende (CS), Italy.
| | - Gerardo F Goya
- Institute of Nanoscience of Aragon (INA), Department of Condensed Matter Physics, University of Zaragoza, 50018 Zaragoza, Spain.
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18
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Raffa V, Falcone F, De Vincentiis S, Falconieri A, Calatayud MP, Goya GF, Cuschieri A. Piconewton Mechanical Forces Promote Neurite Growth. Biophys J 2018; 115:2026-2033. [PMID: 30473016 PMCID: PMC6303536 DOI: 10.1016/j.bpj.2018.10.009] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Revised: 09/25/2018] [Accepted: 10/09/2018] [Indexed: 12/24/2022] Open
Abstract
Investigations over half a century have indicated that mechanical forces induce neurite growth, with neurites elongating at a rate of 0.1-0.3 μm h-1 pN-1 when mechanical force exceeds a threshold, with this being identified as 400-1000 pN for neurites of PC12 cells. In this article, we demonstrate that neurite elongation of PC12 cells proceeds at the same previously identified rate on application of mechanical tension of ∼1 pN, which is significantly lower than the force generated in vivo by axons and growth cones. This observation raises the possibility that mechanical tension may act as an endogenous signal used by neurons for promoting neurite elongation.
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Affiliation(s)
- Vittoria Raffa
- The Institute for Medical Science and Technology, University of Dundee, Dundee, United Kingdom; Department of Biology, Università di Pisa, Pisa, Italy.
| | - Francesca Falcone
- The Institute for Medical Science and Technology, University of Dundee, Dundee, United Kingdom; Department of Biology, Università di Pisa, Pisa, Italy
| | | | | | - Maria P Calatayud
- Instituto de Nanociencia de Aragón, Universidad de Zaragoza, Mariano Esquillor, Zaragoza, Spain
| | - Gerardo F Goya
- Instituto de Nanociencia de Aragón, Universidad de Zaragoza, Mariano Esquillor, Zaragoza, Spain
| | - Alfred Cuschieri
- The Institute for Medical Science and Technology, University of Dundee, Dundee, United Kingdom
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19
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Ramirez-Nuñez AL, Jimenez-Garcia LF, Goya GF, Sanz B, Santoyo-Salazar J. In vitro magnetic hyperthermia using polyphenol-coated Fe 3O 4@γFe 2O 3 nanoparticles from Cinnamomun verum and Vanilla planifolia: the concert of green synthesis and therapeutic possibilities. Nanotechnology 2018; 29:074001. [PMID: 29256440 DOI: 10.1088/1361-6528/aaa2c1] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Affiliation(s)
- A L Ramirez-Nuñez
- Programa de Doctorado en Nanociencias y Nanotecnología, Centro de Investigación y Estudios Avanzados del Instituto Politécnico Nacional, CINVESTAV-IPN, Av. IPN 2508, Zacatenco, 07360, Mexico
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20
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Criado M, Sanz B, Goya GF, Mijangos C, Hernández R. Magnetically responsive biopolymeric multilayer films for local hyperthermia. J Mater Chem B 2017; 5:8570-8578. [PMID: 32264525 DOI: 10.1039/c7tb02361h] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
We present a proof of concept on the use of thermomagnetic polymer films (TMFs) as heating devices for magnetic hyperthermia in vitro. The TMFs were prepared through spray assisted layer-by-layer assembly of polysaccharides and magnetic iron oxide nanoparticles, yielding an alternate magnetic-polymer multilayer structure. By applying a remote alternating magnetic field (AMF) (f = 180 kHz; H = 35 kA m-1) we increased the temperature of the TMFs in a thickness-dependent way, up to 12 °C within the first 5 minutes. To test our films as heating substrates for magnetic hyperthermia, a series of in vitro experiments were designed using human neuroblastoma SH-SY5Y cells, known by their tolerance to thermal stress. The application of two AMF cycles (30 minutes each) showed that the exogenous magnetic hyperthermia resulted in an 85% reduction of cell viability. This capacity of the TMFs of hyperthermia-mediated cell killing using a remote AMF opens new options for the treatment of small and superficial tumor lesions by means of remotely-triggered magnetic hyperthermia.
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Affiliation(s)
- M Criado
- Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC), c/Juan de la Cierva, 3, 28006 Madrid, Spain.
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21
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Giannaccini M, Calatayud MP, Poggetti A, Corbianco S, Novelli M, Paoli M, Battistini P, Castagna M, Dente L, Parchi P, Lisanti M, Cavallini G, Junquera C, Goya GF, Raffa V. Magnetic Nanoparticles for Efficient Delivery of Growth Factors: Stimulation of Peripheral Nerve Regeneration. Adv Healthc Mater 2017; 6. [PMID: 28156059 DOI: 10.1002/adhm.201601429] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Revised: 01/09/2017] [Indexed: 12/19/2022]
Abstract
The only clinically approved alternative to autografts for treating large peripheral nerve injuries is the use of synthetic nerve guidance conduits (NGCs), which provide physical guidance to the regenerating stump and limit scar tissue infiltration at the injury site. Several lines of evidence suggest that a potential future strategy is to combine NGCs with cellular or molecular therapies to deliver growth factors that sustain the regeneration process. However, growth factors are expensive and have a very short half-life; thus, the combination approach has not been successful. In the present paper, we proposed the immobilization of growth factors (GFs) on magnetic nanoparticles (MNPs) for the time- and space-controlled release of GFs inside the NGC. We tested the particles in a rat model of a peripheral nerve lesion. Our results revealed that the injection of a cocktail of MNPs functionalized with nerve growth factor (NGF) and with vascular endothelial growth factor (VEGF) strongly accelerate the regeneration process and the recovery of motor function compared to that obtained using the free factors. Additionally, we found that injecting MNPs in the NGC is safe and does not impair the regeneration process, and the MNPs remain in the conduit for weeks.
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Affiliation(s)
- Martina Giannaccini
- Department of Biology; Università di Pisa; S.S. 12 Abetone e Brennero 4 56127 Pisa Italy
| | - M. Pilar Calatayud
- Instituto de Nanociencia de Aragon; Universidad de Zaragoza; Mariano Esquillor 50018 Zaragoza Spain
| | - Andrea Poggetti
- Department of Translational Research and of New Surgical and Medical Technologies; Università di Pisa; Via Savi 8 56126 Pisa Italy
| | - Silvia Corbianco
- Department of Translational Research and of New Surgical and Medical Technologies; Università di Pisa; Via Savi 8 56126 Pisa Italy
| | - Michela Novelli
- Department of Translational Research and of New Surgical and Medical Technologies; Università di Pisa; Via Savi 8 56126 Pisa Italy
| | - Melania Paoli
- Institute of Life Science; Scuola Superiore Sant'Anna; Piazza Martiri della Libertà 33 56127 Pisa Italy
| | - Pietro Battistini
- Department of Translational Research and of New Surgical and Medical Technologies; Università di Pisa; Via Savi 8 56126 Pisa Italy
| | - Maura Castagna
- Department of Translational Research and of New Surgical and Medical Technologies; Università di Pisa; Via Savi 8 56126 Pisa Italy
| | - Luciana Dente
- Department of Biology; Università di Pisa; S.S. 12 Abetone e Brennero 4 56127 Pisa Italy
| | - Paolo Parchi
- Department of Translational Research and of New Surgical and Medical Technologies; Università di Pisa; Via Savi 8 56126 Pisa Italy
| | - Michele Lisanti
- Department of Translational Research and of New Surgical and Medical Technologies; Università di Pisa; Via Savi 8 56126 Pisa Italy
| | - Gabriella Cavallini
- Department of Translational Research and of New Surgical and Medical Technologies; Università di Pisa; Via Savi 8 56126 Pisa Italy
| | - Concepción Junquera
- Institute for Health Research Aragon IIS; Faculty of Medicine, C/Domingo Mirals/n; 50009 Zaragoza Spain
| | - Gerardo F. Goya
- Instituto de Nanociencia de Aragon; Universidad de Zaragoza; Mariano Esquillor 50018 Zaragoza Spain
| | - Vittoria Raffa
- Department of Biology; Università di Pisa; S.S. 12 Abetone e Brennero 4 56127 Pisa Italy
- Institute of Life Science; Scuola Superiore Sant'Anna; Piazza Martiri della Libertà 33 56127 Pisa Italy
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22
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Abstract
Nanotechnology can offer different solutions for enhancing the therapeutic efficiency of polyphenols, a class of natural products widely explored for a potential applicability for the treatment of different diseases including cancer. While possessing interesting anticancer properties, polyphenols suffer from low stability and unfavorable pharmacokinetics, and thus suitable carriers are required when planning a therapeutic protocol. In the present review, an overview of the different strategies based on polymeric materials is presented, with the aim to highlight the strengths and the weaknesses of each approach and offer a platform of ideas for researchers working in the field.
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Affiliation(s)
- Orazio Vittorio
- a UNSW Australia, Children's Cancer Institute, Lowy Cancer Research Center and ARC Center of Excellence in Convergent Bio-Nano Science and Technology, Australian Center for NanoMedicine , Sydney , NSW , Australia
| | - Manuela Curcio
- b Department of Pharmacy Health and Nutritional Science , University of Calabria, Arcavacata di Rende , Italy
| | - Monica Cojoc
- c OncoRay-National Center for Radiation Research in Oncology, Medical Faculty and University Hospital Carl Gustav Carus, Technische Universität Dresden and Helmholtz-Zentrum Dresden-Rossendorf , Dresden , Germany
| | - Gerardo F Goya
- d Institute of Nanoscience of Aragon (INA) and Department of Condensed Matter Physics, University of Zaragoza , Zaragoza , Spain
| | - Silke Hampel
- e Leibniz Institute of Solid State and Material Research Dresden , Dresden , Germany , and
| | - Francesca Iemma
- b Department of Pharmacy Health and Nutritional Science , University of Calabria, Arcavacata di Rende , Italy
| | - Anna Dubrovska
- c OncoRay-National Center for Radiation Research in Oncology, Medical Faculty and University Hospital Carl Gustav Carus, Technische Universität Dresden and Helmholtz-Zentrum Dresden-Rossendorf , Dresden , Germany.,f German Cancer Consortium (DKTK) Dresden and German Cancer Research Center (DKFZ) , Heidelberg , Germany
| | - Giuseppe Cirillo
- b Department of Pharmacy Health and Nutritional Science , University of Calabria, Arcavacata di Rende , Italy
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23
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León Félix L, Coaquira JAH, Martínez MAR, Goya GF, Mantilla J, Sousa MH, Valladares LDLS, Barnes CHW, Morais PC. Structural and magnetic properties of core-shell Au/Fe 3O 4 nanoparticles. Sci Rep 2017; 7:41732. [PMID: 28165012 PMCID: PMC5292710 DOI: 10.1038/srep41732] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Accepted: 12/29/2016] [Indexed: 11/09/2022] Open
Abstract
We present a systematic study of core-shell Au/Fe3O4 nanoparticles produced by thermal decomposition under mild conditions. The morphology and crystal structure of the nanoparticles revealed the presence of Au core of d = (6.9 ± 1.0) nm surrounded by Fe3O4 shell with a thickness of ~3.5 nm, epitaxially grown onto the Au core surface. The Au/Fe3O4 core-shell structure was demonstrated by high angle annular dark field scanning transmission electron microscopy analysis. The magnetite shell grown on top of the Au nanoparticle displayed a thermal blocking state at temperatures below TB = 59 K and a relaxed state well above TB. Remarkably, an exchange bias effect was observed when cooling down the samples below room temperature under an external magnetic field. Moreover, the exchange bias field (HEX) started to appear at T~40 K and its value increased by decreasing the temperature. This effect has been assigned to the interaction of spins located in the magnetically disordered regions (in the inner and outer surface of the Fe3O4 shell) and spins located in the ordered region of the Fe3O4 shell.
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Affiliation(s)
- L León Félix
- Laboratory of Magnetic Characterization, Instituto de Física, Universidade de Brasília, DF 70910-900, Brasília, Brazil.,Instituto de Nanociencia de Aragón (INA), Universidad de Zaragoza, 50018 Zaragoza, Spain
| | - J A H Coaquira
- Laboratory of Magnetic Characterization, Instituto de Física, Universidade de Brasília, DF 70910-900, Brasília, Brazil
| | - M A R Martínez
- Laboratory of Magnetic Characterization, Instituto de Física, Universidade de Brasília, DF 70910-900, Brasília, Brazil
| | - G F Goya
- Instituto de Nanociencia de Aragón (INA), Universidad de Zaragoza, 50018 Zaragoza, Spain
| | - J Mantilla
- Laboratory of Magnetic Characterization, Instituto de Física, Universidade de Brasília, DF 70910-900, Brasília, Brazil
| | - M H Sousa
- Green Nanotechnology Group, Faculdade de Ceilândia, Universidade de Brasília, Ceilândia, DF 72220-900, Brasília, Brazil
| | - L de Los Santos Valladares
- Cavendish Laboratory, Department of Physics, University of Cambridge, J.J Thomson Av., Cambridge CB3 0HE, United Kingdom
| | - C H W Barnes
- Cavendish Laboratory, Department of Physics, University of Cambridge, J.J Thomson Av., Cambridge CB3 0HE, United Kingdom
| | - P C Morais
- Laboratory of Magnetic Characterization, Instituto de Física, Universidade de Brasília, DF 70910-900, Brasília, Brazil.,School of Chemistry and Chemical Engineering, Anhui University, Hefei 230601, China
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24
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Sanz B, Calatayud MP, De Biasi E, Lima E, Mansilla MV, Zysler RD, Ibarra MR, Goya GF. In Silico before In Vivo: how to Predict the Heating Efficiency of Magnetic Nanoparticles within the Intracellular Space. Sci Rep 2016; 6:38733. [PMID: 27924942 PMCID: PMC5141417 DOI: 10.1038/srep38733] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Accepted: 11/14/2016] [Indexed: 01/08/2023] Open
Abstract
This work aims to demonstrate the need for in silico design via numerical simulation to produce optimal Fe3O4-based magnetic nanoparticles (MNPs) for magnetic hyperthermia by minimizing the impact of intracellular environments on heating efficiency. By including the relevant magnetic parameters, such as magnetic anisotropy and dipolar interactions, into a numerical model, the heating efficiency of as prepared colloids was preserved in the intracellular environment, providing the largest in vitro specific power absorption (SPA) values yet reported. Dipolar interactions due to intracellular agglomeration, which are included in the simulated SPA, were found to be the main cause of changes in the magnetic relaxation dynamics of MNPs under in vitro conditions. These results pave the way for the magnetism-based design of MNPs that can retain their heating efficiency in vivo, thereby improving the outcome of clinical hyperthermia experiments.
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Affiliation(s)
- Beatriz Sanz
- Instituto de Nanociencia de Aragón (INA), Universidad de Zaragoza, 50018 Zaragoza, Spain
| | - M. Pilar Calatayud
- Instituto de Nanociencia de Aragón (INA), Universidad de Zaragoza, 50018 Zaragoza, Spain
- Departamento de Física de la Materia Condensada, Facultad de Ciencias, Universidad de Zaragoza, 50009 Zaragoza, Spain
| | - Emilio De Biasi
- Centro Atómico Bariloche/CONICET, Bariloche, CP 8400, Argentina
| | - Enio Lima
- Centro Atómico Bariloche/CONICET, Bariloche, CP 8400, Argentina
| | | | | | - M. Ricardo Ibarra
- Instituto de Nanociencia de Aragón (INA), Universidad de Zaragoza, 50018 Zaragoza, Spain
- Departamento de Física de la Materia Condensada, Facultad de Ciencias, Universidad de Zaragoza, 50009 Zaragoza, Spain
| | - Gerardo F. Goya
- Instituto de Nanociencia de Aragón (INA), Universidad de Zaragoza, 50018 Zaragoza, Spain
- Departamento de Física de la Materia Condensada, Facultad de Ciencias, Universidad de Zaragoza, 50009 Zaragoza, Spain
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Sanz B, Calatayud MP, Torres TE, Fanarraga ML, Ibarra MR, Goya GF. Magnetic hyperthermia enhances cell toxicity with respect to exogenous heating. Biomaterials 2016; 114:62-70. [PMID: 27846403 DOI: 10.1016/j.biomaterials.2016.11.008] [Citation(s) in RCA: 88] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Revised: 09/28/2016] [Accepted: 11/07/2016] [Indexed: 11/25/2022]
Abstract
Magnetic hyperthermia is a new type of cancer treatment designed for overcoming resistance to chemotherapy during the treatment of solid, inaccessible human tumors. The main challenge of this technology is increasing the local tumoral temperature with minimal side effects on the surrounding healthy tissue. This work consists of an in vitro study that compared the effect of hyperthermia in response to the application of exogenous heating (EHT) sources with the corresponding effect produced by magnetic hyperthermia (MHT) at the same target temperatures. Human neuroblastoma SH-SY5Y cells were loaded with magnetic nanoparticles (MNPs) and packed into dense pellets to generate an environment that is crudely similar to that expected in solid micro-tumors, and the above-mentioned protocols were applied to these cells. These experiments showed that for the same target temperatures, MHT induces a decrease in cell viability that is larger than the corresponding EHT, up to a maximum difference of approximately 45% at T = 46 °C. An analysis of the data in terms of temperature efficiency demonstrated that MHT requires an average temperature that is 6 °C lower than that required with EHT to produce a similar cytotoxic effect. An analysis of electron microscopy images of the cells after the EHT and MHT treatments indicated that the enhanced effectiveness observed with MHT is associated with local cell destruction triggered by the magnetic nano-heaters. The present study is an essential step toward the development of innovative adjuvant anti-cancer therapies based on local hyperthermia treatments using magnetic particles as nano-heaters.
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Affiliation(s)
- Beatriz Sanz
- Instituto de Nanociencia de Aragón (INA), Universidad de Zaragoza, C/Mariano Esquillor S/N, CP 50018, Zaragoza, Spain
| | - M Pilar Calatayud
- Instituto de Nanociencia de Aragón (INA), Universidad de Zaragoza, C/Mariano Esquillor S/N, CP 50018, Zaragoza, Spain; Departamento de Física de la Materia Condensada, Facultad de Ciencias, C/ Pedro Cerbuna 12, 50009, Zaragoza, Spain
| | - Teobaldo E Torres
- Instituto de Nanociencia de Aragón (INA), Universidad de Zaragoza, C/Mariano Esquillor S/N, CP 50018, Zaragoza, Spain; Departamento de Física de la Materia Condensada, Facultad de Ciencias, C/ Pedro Cerbuna 12, 50009, Zaragoza, Spain; Laboratorio de Microscopias Avanzadas (LMA), Universidad de Zaragoza, C/Mariano Esquillor S/N, CP 50018, Zaragoza, Spain
| | - Mónica L Fanarraga
- Grupo de Nanomedicina-IDIVAL, Universidad de Cantabria, Herrera Oria s/n, CP 39011 Santander, Spain
| | - M Ricardo Ibarra
- Instituto de Nanociencia de Aragón (INA), Universidad de Zaragoza, C/Mariano Esquillor S/N, CP 50018, Zaragoza, Spain; Departamento de Física de la Materia Condensada, Facultad de Ciencias, C/ Pedro Cerbuna 12, 50009, Zaragoza, Spain
| | - Gerardo F Goya
- Instituto de Nanociencia de Aragón (INA), Universidad de Zaragoza, C/Mariano Esquillor S/N, CP 50018, Zaragoza, Spain; Departamento de Física de la Materia Condensada, Facultad de Ciencias, C/ Pedro Cerbuna 12, 50009, Zaragoza, Spain.
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26
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Zamora-Mora V, Fernández-Gutiérrez M, González-Gómez Á, Sanz B, Román JS, Goya GF, Hernández R, Mijangos C. Chitosan nanoparticles for combined drug delivery and magnetic hyperthermia: From preparation to in vitro studies. Carbohydr Polym 2016; 157:361-370. [PMID: 27987939 DOI: 10.1016/j.carbpol.2016.09.084] [Citation(s) in RCA: 94] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Revised: 09/21/2016] [Accepted: 09/27/2016] [Indexed: 12/29/2022]
Abstract
Chitosan nanoparticles (CSNPs) ionically crosslinked with tripolyphosphate salts (TPP) were employed as nanocarriers in combined drug delivery and magnetic hyperthermia (MH) therapy. To that aim, three different ferrofluid concentrations and a constant 5-fluorouracil (5-FU) concentration were efficiently encapsulated to yield magnetic CSNPs with core-shell morphology. In vitro experiments using normal cells, fibroblasts (FHB) and cancer cells, human glioblastoma A-172, showed that CSNPs presented a dose-dependent cytotoxicity and that they were successfully uptaken into both cell lines. The application of a MH treatment in A-172 cells resulted in a cell viability of 67-75% whereas no significant reduction of cell viability was observed for FHB. However, the A-172 cells showed re-growth populations 4h after the application of the MH treatment when CSNPs were loaded only with ferrofluid. Finally, a combined effect of MH and 5-FU release was observed with the application of a second MH treatment for CSNPs exhibiting a lower amount of released 5-FU. This result demonstrates the potential of CSNPs for the improvement of MH therapies.
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Affiliation(s)
- Vanessa Zamora-Mora
- Instituto de Ciencia y Tecnología de Polímeros (CSIC), c/Juan de la Cierva, 3, 28006 Madrid, Spain
| | - Mar Fernández-Gutiérrez
- Instituto de Ciencia y Tecnología de Polímeros (CSIC), c/Juan de la Cierva, 3, 28006 Madrid, Spain; CIBER-BBN, c/Monforte de Lemos 3-5, Pabellón 11, 28029 Madrid, Spain
| | - Álvaro González-Gómez
- Instituto de Ciencia y Tecnología de Polímeros (CSIC), c/Juan de la Cierva, 3, 28006 Madrid, Spain; CIBER-BBN, c/Monforte de Lemos 3-5, Pabellón 11, 28029 Madrid, Spain
| | - Beatriz Sanz
- Nanoscience Institute of Aragón, University of Zaragoza, Mariano Esquillor s/n, 50018 Zaragoza, Spain; Department of Condensed Matter Physics, University of Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - Julio San Román
- Instituto de Ciencia y Tecnología de Polímeros (CSIC), c/Juan de la Cierva, 3, 28006 Madrid, Spain; CIBER-BBN, c/Monforte de Lemos 3-5, Pabellón 11, 28029 Madrid, Spain
| | - Gerardo F Goya
- Nanoscience Institute of Aragón, University of Zaragoza, Mariano Esquillor s/n, 50018 Zaragoza, Spain; Department of Condensed Matter Physics, University of Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - Rebeca Hernández
- Instituto de Ciencia y Tecnología de Polímeros (CSIC), c/Juan de la Cierva, 3, 28006 Madrid, Spain.
| | - Carmen Mijangos
- Instituto de Ciencia y Tecnología de Polímeros (CSIC), c/Juan de la Cierva, 3, 28006 Madrid, Spain
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Wang L, Min Y, Wang Z, Riggio C, Calatayud MP, Pinkernelle J, Raffa V, Goya GF, Keilhoff G, Cuschieri A. Evaluation of In-Situ Magnetic Signals from Iron Oxide Nanoparticle-Labeled PC12 Cells by Atomic Force Microscopy. J Biomed Nanotechnol 2015; 11:457-68. [PMID: 26307828 DOI: 10.1166/jbn.2015.2040] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The magnetic signals from magnetite nanoparticle-labeled PC12 cells were assessed by magnetic force microscopy by deploying a localized external magnetic field to magnetize the nanoparticles and the magnetic tip simultaneously so that the interaction between the tip and PC12 cell-associated Fe3O4 nanoparticles could be detected at lift heights (the distance between the tip and the sample) larger than 100 nm. The use of large lift heights during the raster scanning of the probe eliminates the non-magnetic interference from the complex and rugged cell surface and yet maintains the sufficient sensitivity for magnetic detection. The magnetic signals of the cell-bound nanoparticles were semi-quantified by analyzing cell surface roughness upon three-dimensional reconstruction generated by the phase shift of the cantilever oscillation. The obtained data can be used for the evaluation of the overall cellular magnetization as well as the maximum magnetic forces from magnetic nanoparticle-labeled cells which is crucial for the biomedical application of these nanomaterials.
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Sanz B, Calatayud MP, Cassinelli N, Ibarra MR, Goya GF. Cover Picture: Long‐Term Stability and Reproducibility of Magnetic Colloids Are Key Issues for Steady Values of Specific Power Absorption over Time (Eur. J. Inorg. Chem. 27/2015). Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201590110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Beatriz Sanz
- Instituto de Nanociencia de Aragón (INA), Universidad de Zaragoza, Edificio I+D, Calle Mariano Esquillo s/n (Campus Río Ebro), 50018 Zaragoza, Spain, http://ina.unizar.es/ www.unizar.es/gfgoya/
- Departamento de Física de la Materia Condensada, Universidad de Zaragoza, Calle Pedro Cerbuna 12, 50009 Zaragoza, Spain
- nB Nanoscale Biomagnetics S.L., Calle Panamá 2, 50012 Zaragoza, Spain
| | - M. Pilar Calatayud
- Instituto de Nanociencia de Aragón (INA), Universidad de Zaragoza, Edificio I+D, Calle Mariano Esquillo s/n (Campus Río Ebro), 50018 Zaragoza, Spain, http://ina.unizar.es/ www.unizar.es/gfgoya/
- Departamento de Física de la Materia Condensada, Universidad de Zaragoza, Calle Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | | | - M. Ricardo Ibarra
- Instituto de Nanociencia de Aragón (INA), Universidad de Zaragoza, Edificio I+D, Calle Mariano Esquillo s/n (Campus Río Ebro), 50018 Zaragoza, Spain, http://ina.unizar.es/ www.unizar.es/gfgoya/
- Departamento de Física de la Materia Condensada, Universidad de Zaragoza, Calle Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - Gerardo F. Goya
- Instituto de Nanociencia de Aragón (INA), Universidad de Zaragoza, Edificio I+D, Calle Mariano Esquillo s/n (Campus Río Ebro), 50018 Zaragoza, Spain, http://ina.unizar.es/ www.unizar.es/gfgoya/
- Departamento de Física de la Materia Condensada, Universidad de Zaragoza, Calle Pedro Cerbuna 12, 50009 Zaragoza, Spain
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Sanz B, Calatayud MP, Cassinelli N, Ibarra MR, Goya GF. Long‐Term Stability and Reproducibility of Magnetic Colloids Are Key Issues for Steady Values of Specific Power Absorption over Time. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201500920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Sanz B, Calatayud MP, Cassinelli N, Ibarra MR, Goya GF. Long-Term Stability and Reproducibility of Magnetic Colloids Are Key Issues for Steady Values of Specific Power Absorption over Time. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201500303] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Riggio C, Calatayud MP, Giannaccini M, Sanz B, Torres TE, Fernández-Pacheco R, Ripoli A, Ibarra MR, Dente L, Cuschieri A, Goya GF, Raffa V. The orientation of the neuronal growth process can be directed via magnetic nanoparticles under an applied magnetic field. Nanomedicine: Nanotechnology, Biology and Medicine 2014; 10:1549-58. [DOI: 10.1016/j.nano.2013.12.008] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2013] [Accepted: 12/23/2013] [Indexed: 12/15/2022]
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Mojica Pisciotti ML, Lima E, Vasquez Mansilla M, Tognoli VE, Troiani HE, Pasa AA, Creczynski-Pasa TB, Silva AH, Gurman P, Colombo L, Goya GF, Lamagna A, Zysler RD. In vitro and in vivo experiments with iron oxide nanoparticles functionalized with DEXTRAN or polyethylene glycol for medical applications: magnetic targeting. J Biomed Mater Res B Appl Biomater 2014; 102:860-8. [PMID: 24458920 DOI: 10.1002/jbm.b.33068] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2013] [Revised: 09/13/2013] [Accepted: 10/20/2013] [Indexed: 01/30/2023]
Abstract
In this research work, DEXTRAN- and polyethylene glycol (PEG)-coated iron-oxide superparamagnetic nanoparticles were synthetized and their cytotoxicity and biodistribution assessed. Well-crystalline hydrophobic Fe3 O4 SPIONs were formed by a thermal decomposition process with d = 18 nm and σ = 2 nm; finally, the character of SPIONs was changed to hydrophilic by a post-synthesis procedure with the functionalization of the SPIONs with PEG or DEXTRAN. The nanoparticles present high saturation magnetization and superparamagnetic behavior at room temperature, and the hydrodynamic diameters of DEXTRAN- and PEG-coated SPIONs were measured as 170 and 120 nm, respectively. PEG- and DEXTRAN-coated SPIONs have a Specific Power Absorption SPA of 320 and 400 W/g, respectively, in an ac magnetic field with amplitude of 13 kA/m and frequency of 256 kHz. In vitro studies using VERO and MDCK cell lineages were performed to study the cytotoxicity and cell uptake of the SPIONs. For both cell lineages, PEG- and DEXTRAN-coated nanoparticles presented high cell viability for concentrations as high as 200 μg/mL. In vivo studies were conducted using BALB/c mice inoculating the SPIONs intravenously and exposing them to the presence of an external magnet located over the tumour. It was observed that the amount of PEG-coated SPIONs in the tumor increased by up to 160% when using the external permanent magnetic as opposed to those animals that were not exposed to the external magnetic field.
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Affiliation(s)
- M L Mojica Pisciotti
- Div. Resonancias Magnéticas, Centro Atómico Bariloche/CONICET, S. C. Bariloche, 8400, Argentina
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Giannaccini M, Giannini M, Calatayud MP, Goya GF, Cuschieri A, Dente L, Raffa V. Magnetic nanoparticles as intraocular drug delivery system to target retinal pigmented epithelium (RPE). Int J Mol Sci 2014; 15:1590-605. [PMID: 24451140 PMCID: PMC3907888 DOI: 10.3390/ijms15011590] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2013] [Revised: 01/03/2014] [Accepted: 01/06/2014] [Indexed: 02/07/2023] Open
Abstract
One of the most challenging efforts in drug delivery is the targeting of the eye. The eye structure and barriers render this organ poorly permeable to drugs. Quite recently the entrance of nanoscience in ocular drug delivery has improved the penetration and half-life of drugs, especially in the anterior eye chamber, while targeting the posterior chamber is still an open issue. The retina and the retinal pigment epithelium/choroid tissues, located in the posterior eye chamber, are responsible for the majority of blindness both in childhood and adulthood. In the present study, we used magnetic nanoparticles (MNPs) as a nanotool for ocular drug delivery that is capable of specific localization in the retinal pigmented epithelium (RPE) layer. We demonstrate that, following intraocular injection in Xenopus embryos, MNPs localize specifically in RPE where they are retained for several days. The specificity of the localization did not depend on particle size and surface properties of the MNPs used in this work. Moreover, through similar experiments in zebrafish, we demonstrated that the targeting of RPE by the nanoparticles is not specific for the Xenopus species.
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Affiliation(s)
- Martina Giannaccini
- Institute of Life Science, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, Pisa 56127, Italy.
| | - Marianna Giannini
- Institute of Life Science, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, Pisa 56127, Italy.
| | - M Pilar Calatayud
- Instituto de Nanociencia de Aragon & Condensed Matter Physics Department, Universidad de Zaragoza, Mariano Esquillor edif. I+D, Zaragoza 50018, Spain.
| | - Gerardo F Goya
- Instituto de Nanociencia de Aragon & Condensed Matter Physics Department, Universidad de Zaragoza, Mariano Esquillor edif. I+D, Zaragoza 50018, Spain.
| | - Alfred Cuschieri
- Institute of Life Science, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, Pisa 56127, Italy.
| | - Luciana Dente
- Department of Biology, Università di Pisa, S.S. 12 Abetone e Brennero 4, Pisa 56127, Italy.
| | - Vittoria Raffa
- Department of Biology, Università di Pisa, S.S. 12 Abetone e Brennero 4, Pisa 56127, Italy.
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Goya GF, Asín L, Ibarra MR. Cell death induced by AC magnetic fields and magnetic nanoparticles: Current state and perspectives. Int J Hyperthermia 2013; 29:810-8. [DOI: 10.3109/02656736.2013.838646] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
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Pinheiro PC, Daniel-da-Silva AL, Tavares DS, Calatayud MP, Goya GF, Trindade T. Fluorescent Magnetic Bioprobes by Surface Modification of Magnetite Nanoparticles. Materials (Basel) 2013; 6:3213-3225. [PMID: 28811431 PMCID: PMC5521243 DOI: 10.3390/ma6083213] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/03/2013] [Revised: 06/28/2013] [Accepted: 07/23/2013] [Indexed: 12/11/2022]
Abstract
Bimodal nanoprobes comprising both magnetic and optical functionalities have been prepared via a sequential two-step process. Firstly, magnetite nanoparticles (MNPs) with well-defined cubic shape and an average dimension of 80 nm were produced by hydrolysis of iron sulfate and were then surface modified with silica shells by using the sol-gel method. The Fe₃O₄@SiO₂ particles were then functionalized with the fluorophore, fluorescein isothiocyanate (FITC), mediated by assembled shells of the cationic polyelectrolyte, polyethyleneimine (PEI). The Fe₃O₄ functionalized particles were then preliminary evaluated as fluorescent and magnetic probes by performing studies in which neuroblast cells have been contacted with these nanomaterials.
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Affiliation(s)
- Paula C Pinheiro
- Department of Chemistry-CICECO (Centre for Research in Ceramics and Composite Materials), Aveiro Institute of Nanotechnology, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Ana L Daniel-da-Silva
- Department of Chemistry-CICECO (Centre for Research in Ceramics and Composite Materials), Aveiro Institute of Nanotechnology, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Daniela S Tavares
- Department of Chemistry-CICECO (Centre for Research in Ceramics and Composite Materials), Aveiro Institute of Nanotechnology, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - M Pilar Calatayud
- Institute of Nanoscience of Aragón (INA), University of Zaragoza, 50018 Zaragoza, Spain.
| | - Gerardo F Goya
- Institute of Nanoscience of Aragón (INA), University of Zaragoza, 50018 Zaragoza, Spain.
| | - Tito Trindade
- Department of Chemistry-CICECO (Centre for Research in Ceramics and Composite Materials), Aveiro Institute of Nanotechnology, University of Aveiro, 3810-193 Aveiro, Portugal.
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Sebastian V, Calatayud MP, Goya GF, Santamaria J. Magnetically-driven selective synthesis of Au clusters on Fe3O4 nanoparticles. Chem Commun (Camb) 2013; 49:716-8. [PMID: 23223273 DOI: 10.1039/c2cc37355f] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel procedure to direct the local synthesis of gold clusters on Fe(3)O(4) nanocrystals by means of alternating magnetic fields (AMFs) is demonstrated. This process allows growing gold selectively onto the heated magnetite surface, while keeping the synthesis solution comparatively cold. Sequential AMF cycles allowed fine-tuning the amount of gold on the magnetite surfaces.
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Affiliation(s)
- Víctor Sebastian
- Department of Chemical Engineering, Aragon Institute of Nanoscience (INA), University of Zaragoza, C/ Poeta Mariano Esquillor S/N, 50018 Zaragoza, Spain.
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Calatayud MP, Riggio C, Raffa V, Sanz B, Torres TE, Ibarra MR, Hoskins C, Cuschieri A, Wang L, Pinkernelle J, Keilhoff G, Goya GF. Neuronal cells loaded with PEI-coated Fe3O4 nanoparticles for magnetically guided nerve regeneration. J Mater Chem B 2013; 1:3607-3616. [DOI: 10.1039/c3tb20336k] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Grazú V, Silber AM, Moros M, Asín L, Torres TE, Marquina C, Ibarra MR, Goya GF. Application of magnetically induced hyperthermia in the model protozoan Crithidia fasciculata as a potential therapy against parasitic infections. Int J Nanomedicine 2012; 7:5351-60. [PMID: 23071396 PMCID: PMC3469100 DOI: 10.2147/ijn.s35510] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Background Magnetic hyperthermia is currently a clinical therapy approved in the European Union for treatment of tumor cells, and uses magnetic nanoparticles (MNPs) under time-varying magnetic fields (TVMFs). The same basic principle seems promising against trypanosomatids causing Chagas disease and sleeping sickness, given that the therapeutic drugs available have severe side effects and that there are drug-resistant strains. However, no applications of this strategy against protozoan-induced diseases have been reported so far. In the present study, Crithidia fasciculata, a widely used model for therapeutic strategies against pathogenic trypanosomatids, was targeted with Fe3O4 MNPs in order to provoke cell death remotely using TVMFs. Methods Iron oxide MNPs with average diameters of approximately 30 nm were synthesized by precipitation of FeSO4 in basic medium. The MNPs were added to C. fasciculata choanomastigotes in the exponential phase and incubated overnight, removing excess MNPs using a DEAE-cellulose resin column. The amount of MNPs uploaded per cell was determined by magnetic measurement. The cells bearing MNPs were submitted to TVMFs using a homemade AC field applicator (f = 249 kHz, H = 13 kA/m), and the temperature variation during the experiments was measured. Scanning electron microscopy was used to assess morphological changes after the TVMF experiments. Cell viability was analyzed using an MTT colorimetric assay and flow cytometry. Results MNPs were incorporated into the cells, with no noticeable cytotoxicity. When a TVMF was applied to cells bearing MNPs, massive cell death was induced via a nonapoptotic mechanism. No effects were observed by applying TVMF to control cells not loaded with MNPs. No macroscopic rise in temperature was observed in the extracellular medium during the experiments. Conclusion As a proof of principle, these data indicate that intracellular hyperthermia is a suitable technology to induce death of protozoan parasites bearing MNPs. These findings expand the possibilities for new therapeutic strategies combating parasitic infection.
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Affiliation(s)
- V Grazú
- Instituto de Nanociencia de Aragón (INA), Universidad de Zaragoza, Zaragoza, Spain
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Schwerdt JI, Goya GF, Calatayud MP, Hereñú CB, Reggiani PC, Goya RG. Magnetic field-assisted gene delivery: achievements and therapeutic potential. Curr Gene Ther 2012; 12:116-26. [PMID: 22348552 DOI: 10.2174/156652312800099616] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2011] [Revised: 10/20/2011] [Accepted: 10/25/2011] [Indexed: 12/29/2022]
Abstract
The discovery in the early 2000's that magnetic nanoparticles (MNPs) complexed to nonviral or viral vectors can, in the presence of an external magnetic field, greatly enhance gene transfer into cells has raised much interest. This technique, called magnetofection, was initially developed mainly to improve gene transfer in cell cultures, a simpler and more easily controllable scenario than in vivo models. These studies provided evidence for some unique capabilities of magnetofection. Progressively, the interest in magnetofection expanded to its application in animal models and led to the association of this technique with another technology, magnetic drug targeting (MDT). This combination offers the possibility to develop more efficient and less invasive gene therapy strategies for a number of major pathologies like cancer, neurodegeneration and myocardial infarction. The goal of MDT is to concentrate MNPs functionalized with therapeutic drugs, in target areas of the body by means of properly focused external magnetic fields. The availability of stable, nontoxic MNP-gene vector complexes now offers the opportunity to develop magnetic gene targeting (MGT), a variant of MDT in which the gene coding for a therapeutic molecule, rather than the molecule itself, is delivered to a therapeutic target area in the body. This article will first outline the principle of magnetofection, subsequently describing the properties of the magnetic fields and MNPs used in this technique. Next, it will review the results achieved by magnetofection in cell cultures. Last, the potential of MGT for implementing minimally invasive gene therapy will be discussed.
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Affiliation(s)
- Jose I Schwerdt
- Institute for Biochemical Research-Histology B-Pathology B, Faculty of Medicine, National University of La Plata, Argentina
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Asín L, Ibarra MR, Tres A, Goya GF. Controlled cell death by magnetic hyperthermia: effects of exposure time, field amplitude, and nanoparticle concentration. Pharm Res 2012; 29:1319-27. [PMID: 22362408 DOI: 10.1007/s11095-012-0710-z] [Citation(s) in RCA: 100] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2011] [Accepted: 02/15/2012] [Indexed: 01/07/2023]
Abstract
PURPOSE To investigate the effects of alternating magnetic fields (AMF) on the death rate of dendritic cells (DCs) loaded with magnetic nanoparticles (MNPs) as heating agents. AMF exposure time and amplitude as well as the MNPs concentration were screened to assess the best conditions for a controlled field-induced cell death. METHODS Human-monocyte-derived DCs were co-incubated with dextran-coated MNPs. The cells were exposed to AMF (f = 260 kHz; 0 < H(0) < 12.7 kA/m) for intervals from 5 to 15 min. Morphology changes were assessed by scanning electron microscopy. Cell viability was measured by Trypan blue and fluorescence-activated cell sorting (FACS) using Annexin-propidium iodide markers. RESULTS We were able to control the DCs viability by a proper choice AMF amplitude and exposure time, depending on the amount of MNPs uploaded. About 20% of cells showed Annexin-negative/PI-positive staining after 5-10 min of AMF exposure. CONCLUSIONS Controlled cell death of MNP-loaded DCs can be obtained by adequate tuning of the physical AMF parameters and MNPs concentration. Necrotic-like populations were observed after exposure times as short as 10 min, suggesting a fast underlying mechanism for cell death. Power absorption by the MNPs might locally disrupt endosomic membranes, thus provoking irreversible cell damage.
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Affiliation(s)
- L Asín
- Instituto de Nanociencia de Aragón, University of Zaragoza, Mariano Esquillor, 50018 Zaragoza, Spain
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Radović M, Vranješ-Đurić S, Nikolić N, Janković D, Goya GF, Torres TE, Calatayud MP, Bruvera IJ, Ibarra MR, Spasojević V, Jančar B, Antić B. Development and evaluation of 90Y-labeled albumin microspheres loaded with magnetite nanoparticles for possible applications in cancer therapy. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm35593k] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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Marcos-Campos I, Asín L, Torres TE, Marquina C, Tres A, Ibarra MR, Goya GF. Cell death induced by the application of alternating magnetic fields to nanoparticle-loaded dendritic cells. Nanotechnology 2011; 22:205101. [PMID: 21444956 DOI: 10.1088/0957-4484/22/20/205101] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
In this work, the capability of primary, monocyte-derived dendritic cells (DCs) to uptake iron oxide magnetic nanoparticles (MNPs) is assessed and a strategy to induce selective cell death in these MNP-loaded DCs using external alternating magnetic fields (AMFs) is reported. No significant decrease in the cell viability of MNP-loaded DCs, compared to the control samples, was observed after five days of culture. The number of MNPs incorporated into the cytoplasm was measured by magnetometry, which confirmed that 1-5 pg of the particles were uploaded per cell. The intracellular distribution of these MNPs, assessed by transmission electron microscopy, was found to be primarily inside the endosomic structures. These cells were then subjected to an AMF for 30 min and the viability of the blank DCs (i.e. without MNPs), which were used as control samples, remained essentially unaffected. However, a remarkable decrease of viability from approximately 90% to 2-5% of DCs previously loaded with MNPs was observed after the same 30 min exposure to an AMF. The same results were obtained using MNPs having either positive (NH(2)(+)) or negative (COOH(-)) surface functional groups. In spite of the massive cell death induced by application of AMF to MNP-loaded DCs, the number of incorporated magnetic particles did not raise the temperature of the cell culture. Clear morphological changes at the cell structure after magnetic field application were observed using scanning electron microscopy. Therefore, local damage produced by the MNPs could be the main mechanism for the selective cell death of MNP-loaded DCs under an AMF. Based on the ability of these cells to evade the reticuloendothelial system, these complexes combined with an AMF should be considered as a potentially powerful tool for tumour therapy.
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Hoare T, Timko BP, Santamaria J, Goya GF, Irusta S, Lau S, Stefanescu CF, Lin D, Langer R, Kohane DS. Magnetically triggered nanocomposite membranes: a versatile platform for triggered drug release. Nano Lett 2011; 11:1395-400. [PMID: 21344911 PMCID: PMC3065496 DOI: 10.1021/nl200494t] [Citation(s) in RCA: 161] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/14/2023]
Abstract
Drug delivery devices based on nanocomposite membranes containing thermoresponsive nanogels and superparamagnetic nanoparticles have been demonstrated to provide reversible, on-off drug release upon application (and removal) of an oscillating magnetic field. We show that the dose of drug delivered across the membrane can be tuned by engineering the phase transition temperature of the nanogel, the loading density of nanogels in the membrane, and the membrane thickness, allowing for on-state delivery of model drugs over at least 2 orders of magnitude (0.1-10 μg/h). The zero-order kinetics of drug release across the membranes permit drug doses from a specific device to be tuned according to the duration of the magnetic field. Drugs over a broad range of molecular weights (500-40000 Da) can be delivered by the same membrane device. Membrane-to-membrane and cycle-to-cycle reproducibility is demonstrated, suggesting the general utility of these membranes for drug delivery.
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Affiliation(s)
- Todd Hoare
- Department of Chemical Engineering, McMaster University, 1280 Main St. W, Hamilton, Ontario, Canada L8S 4L7
| | - Brian P. Timko
- Laboratory for Biomaterials and Drug Delivery, Department of Anaesthesiology, Division of Critical Care Medicine, Children’s Hospital Boston, Harvard Medical School, 300 Longwood Ave., Boston, MA, U.S.A. 02115
- Department of Chemical Engineering, Massachusetts Institute of Technology, 45 Carleton St., Cambridge, MA, U.S.A. 02142
| | - Jesus Santamaria
- Networking Biomedical Research Center of Bioengineering, Biomaterials and Nanomedicine (CIBERBBN). Maria de Luna, 11. Zaragoza 50018 Spain
- Institute of Nanoscience of Aragón, University of Zaragoza, Mariano Esquillor s/n 50018 Zaragoza, Spain
| | - Gerardo F. Goya
- Institute of Nanoscience of Aragón, University of Zaragoza, Mariano Esquillor s/n 50018 Zaragoza, Spain
| | - Silvia Irusta
- Networking Biomedical Research Center of Bioengineering, Biomaterials and Nanomedicine (CIBERBBN). Maria de Luna, 11. Zaragoza 50018 Spain
- Institute of Nanoscience of Aragón, University of Zaragoza, Mariano Esquillor s/n 50018 Zaragoza, Spain
| | - Samantha Lau
- Department of Chemical Engineering, Massachusetts Institute of Technology, 45 Carleton St., Cambridge, MA, U.S.A. 02142
| | - Cristina F. Stefanescu
- Laboratory for Biomaterials and Drug Delivery, Department of Anaesthesiology, Division of Critical Care Medicine, Children’s Hospital Boston, Harvard Medical School, 300 Longwood Ave., Boston, MA, U.S.A. 02115
| | - Debora Lin
- Department of Chemical Engineering, Massachusetts Institute of Technology, 45 Carleton St., Cambridge, MA, U.S.A. 02142
| | - Robert Langer
- Department of Chemical Engineering, Massachusetts Institute of Technology, 45 Carleton St., Cambridge, MA, U.S.A. 02142
| | - Daniel S. Kohane
- Laboratory for Biomaterials and Drug Delivery, Department of Anaesthesiology, Division of Critical Care Medicine, Children’s Hospital Boston, Harvard Medical School, 300 Longwood Ave., Boston, MA, U.S.A. 02115
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Antic B, Rogan J, Kremenovic A, Nikolic AS, Vucinic-Vasic M, Bozanic DK, Goya GF, Colomban PH. Optimization of photoluminescence of Y(2)O(3):Eu and Gd(2)O(3):Eu phosphors synthesized by thermolysis of 2,4-pentanedione complexes. Nanotechnology 2010; 21:245702. [PMID: 20484791 DOI: 10.1088/0957-4484/21/24/245702] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Spherical shaped nanoparticles of series Y(2 - x)Eu(x)O(3) (x = 0.06, 0.10, 0.20, and 2) and Gd(2 - x)Eu(x)O(3) (x = 0.06, 0.10) were prepared by thermolysis of 2,4-pentanedione complexes of Y, Gd, and Eu. The bixbyite phase of Gd(2 - x)Eu(x)O(3) samples was formed at 500 degrees C, whereas the thermal decomposition of Y and Eu complexes' mixtures occurred at higher temperatures. Linearity in the concentration dependence on lattice parameter confirmed the formation of solid solutions. The distribution of Eu(3+) in Gd(2 - x)Eu(x)O(3) was changed with thermal annealing: in the as-prepared sample (x = 0.10) the distribution was preferential at C(3i) sites while in the annealed samples, Eu(3+) were distributed at both C(2) and C(3i) sites. Rietveld refinement of site occupancies as well as emission spectra showed a random distribution of cations in Y(2 - x)Eu(x)O(3). The photoluminescence (PL) measurements of the sample showed red emission with the main peak at 614 nm ((5)D(0)-(7)F(2)). The PL intensity increased with increasing concentration of Eu(3+) in both series. Infrared excitation was required to obtain good Raman spectra. The linear dependence of the main Raman peak wavenumber offers a non-destructive method for monitoring the substitution level and its homogeneity at the micron scale.
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Affiliation(s)
- B Antic
- Institute of Nuclear Sciences Vinca, POB 522, 11001 Belgrade, Serbia.
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Torres TE, Roca AG, Morales MP, Ibarra A, Marquina C, Ibarra MR, Goya GF. Magnetic properties and energy absorption of CoFe2O4nanoparticles for magnetic hyperthermia. ACTA ACUST UNITED AC 2010. [DOI: 10.1088/1742-6596/200/7/072101] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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46
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Hoare T, Santamaria J, Goya GF, Irusta S, Lin D, Lau S, Padera R, Langer R, Kohane DS. A magnetically triggered composite membrane for on-demand drug delivery. Nano Lett 2009; 9:3651-7. [PMID: 19736912 PMCID: PMC2761986 DOI: 10.1021/nl9018935] [Citation(s) in RCA: 219] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Nanocomposite membranes based on thermosensitive, poly(N-isopropylacrylamide)-based nanogels and magnetite nanoparticles have been designed to achieve "on-demand" drug delivery upon the application of an oscillating magnetic field. On-off release of sodium fluorescein over multiple magnetic cycles has been successfully demonstrated using prototype membrane-based devices. The total drug dose delivered was directly proportional to the duration of the "on" pulse. The membranes were noncytotoxic, were biocompatible, and retained their switchable flux properties after 45 days of subcutaneous implantation.
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Affiliation(s)
- Todd Hoare
- Department of Chemical Engineering, McMaster University, 1280 Main St. W, Hamilton, Ontario, Canada L8S 4L7
| | - Jesus Santamaria
- Networking Biomedical Research Center of Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN). Maria de Luna, 11. Zaragoza, Spain 50018
- Institute of Nanoscience of Aragón, University of Zaragoza, Pedro Cerbuna 12, Zaragoza, Spain 50009
| | - Gerardo F. Goya
- Institute of Nanoscience of Aragón, University of Zaragoza, Pedro Cerbuna 12, Zaragoza, Spain 50009
| | - Silvia Irusta
- Networking Biomedical Research Center of Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN). Maria de Luna, 11. Zaragoza, Spain 50018
- Institute of Nanoscience of Aragón, University of Zaragoza, Pedro Cerbuna 12, Zaragoza, Spain 50009
| | - Debora Lin
- Department of Chemical Engineering, Massachusetts Institute of Technology, 45 Carleton St., Cambridge, MA, U.S.A. 02142
| | - Samantha Lau
- Department of Chemical Engineering, Massachusetts Institute of Technology, 45 Carleton St., Cambridge, MA, U.S.A. 02142
| | - Robert Padera
- Department of Pathology, Brigham and Women's Hospital, 75 Francis St., Boston, MA, 02115
| | - Robert Langer
- Department of Chemical Engineering, Massachusetts Institute of Technology, 45 Carleton St., Cambridge, MA, U.S.A. 02142
| | - Daniel S. Kohane
- Laboratory for Biomaterials and Drug Delivery, Department of Anesthesiology, Division of Critical Care Medicine, Children's Hospital Boston, Harvard Medical School, 300 Longwood Ave., Boston, MA, U.S.A. 02115
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Lima E, Vargas JM, Zysler RD, Rechenberg HR, Cohen R, Arbiol J, Goya GF, Ibarra A, Ibarra MR. Single-step chemical synthesis of ferrite hollow nanospheres. Nanotechnology 2009; 20:045606. [PMID: 19417326 DOI: 10.1088/0957-4484/20/4/045606] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
We report a single-step chemical synthesis of iron oxide hollow nanospheres with 9.3 nm in diameter. The sample presents a narrow particle diameter distribution and chemical homogeneity. The hollow nature of the particles is confirmed by HRTEM and HAADF STEM analysis. Electron and x-ray diffraction show that the outer material component is constituted by 2 nm ferrite crystals. Mössbauer data provide further evidence for the formation of iron oxide with high structural disorder, magnetically ordered at 4.2 K and superparamagnetism at room temperature. An unusual magnetic behavior under an applied field is reported, which can be explained by the large fraction of atoms existing at both inner and outer surfaces.
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Affiliation(s)
- Enio Lima
- Centro Atómico Bariloche and Instituto Balseiro, 8400 SC de Bariloche, RN, Argentina
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Goya GF, Marcos-Campos I, Fernández-Pacheco R, Sáez B, Godino J, Asín L, Lambea J, Tabuenca P, Mayordomo JI, Larrad L, Ibarra MR, Tres A. Dendritic cell uptake of iron-based magnetic nanoparticles. Cell Biol Int 2008; 32:1001-5. [PMID: 18534870 DOI: 10.1016/j.cellbi.2008.04.001] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2008] [Accepted: 04/01/2008] [Indexed: 11/30/2022]
Abstract
We have investigated the internalization of magnetic nanoparticles (NPs) into dendritic cells (DCs) in order to assess both the final location of the particles and the viability of the cultured cells. The particles, consisting of a metallic iron core covered with carbon, showed no toxic effects on the DCs and had no effect in their viability. We found that mature DCs are able to incorporate magnetic nanoparticles in a range of size from 10 nm to ca. 200 nm, after 24 h of incubation. We describe a method to separate cells loaded with NPs, and analyze the resulting material by electron microscopy and magnetic measurements. It is found that NPs are internalized in lysosomes, providing a large magnetic signal. Our results suggest that loading DCs with properly functionalized magnetic NPs could be a promising strategy for improved vectorization in cancer diagnosis and treatment.
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Affiliation(s)
- G F Goya
- Aragon Institute of Nanoscience (INA), University of Zaragoza, and Hospital Universitario Lozano Blesa, Pedro Cerbuna 12, 50009 Zaragoza, Spain.
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