1
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Araújo EV, Carneiro SV, Neto DMA, Freire TM, Costa VM, Freire RM, Fechine LMUD, Clemente CS, Denardin JC, Dos Santos JCS, Santos-Oliveira R, Rocha JS, Fechine PBA. Advances in surface design and biomedical applications of magnetic nanoparticles. Adv Colloid Interface Sci 2024; 328:103166. [PMID: 38728773 DOI: 10.1016/j.cis.2024.103166] [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: 01/05/2024] [Revised: 04/13/2024] [Accepted: 04/27/2024] [Indexed: 05/12/2024]
Abstract
Despite significant efforts by scientists in the development of advanced nanotechnology materials for smart diagnosis devices and drug delivery systems, the success of clinical trials remains largely elusive. In order to address this biomedical challenge, magnetic nanoparticles (MNPs) have gained attention as a promising candidate due to their theranostic properties, which allow the simultaneous treatment and diagnosis of a disease. Moreover, MNPs have advantageous characteristics such as a larger surface area, high surface-to-volume ratio, enhanced mobility, mass transference and, more notably, easy manipulation under external magnetic fields. Besides, certain magnetic particle types based on the magnetite (Fe3O4) phase have already been FDA-approved, demonstrating biocompatible and low toxicity. Typically, surface modification and/or functional group conjugation are required to prevent oxidation and particle aggregation. A wide range of inorganic and organic molecules have been utilized to coat the surface of MNPs, including surfactants, antibodies, synthetic and natural polymers, silica, metals, and various other substances. Furthermore, various strategies have been developed for the synthesis and surface functionalization of MNPs to enhance their colloidal stability, biocompatibility, good response to an external magnetic field, etc. Both uncoated MNPs and those coated with inorganic and organic compounds exhibit versatility, making them suitable for a range of applications such as drug delivery systems (DDS), magnetic hyperthermia, fluorescent biological labels, biodetection and magnetic resonance imaging (MRI). Thus, this review provides an update of recently published MNPs works, providing a current discussion regarding their strategies of synthesis and surface modifications, biomedical applications, and perspectives.
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Affiliation(s)
- E V Araújo
- Advanced Chemistry Materials Group (GQMat)- Analytical Chemistry and Physical Chemistry Department, Federal Unversity of Ceará, - UFC, Campus do Pici, CP 12100, 60451-970 Fortaleza, CE, Brazil.
| | - S V Carneiro
- Advanced Chemistry Materials Group (GQMat)- Analytical Chemistry and Physical Chemistry Department, Federal Unversity of Ceará, - UFC, Campus do Pici, CP 12100, 60451-970 Fortaleza, CE, Brazil.
| | - D M A Neto
- Advanced Chemistry Materials Group (GQMat)- Analytical Chemistry and Physical Chemistry Department, Federal Unversity of Ceará, - UFC, Campus do Pici, CP 12100, 60451-970 Fortaleza, CE, Brazil.
| | - T M Freire
- Advanced Chemistry Materials Group (GQMat)- Analytical Chemistry and Physical Chemistry Department, Federal Unversity of Ceará, - UFC, Campus do Pici, CP 12100, 60451-970 Fortaleza, CE, Brazil.
| | - V M Costa
- Advanced Chemistry Materials Group (GQMat)- Analytical Chemistry and Physical Chemistry Department, Federal Unversity of Ceará, - UFC, Campus do Pici, CP 12100, 60451-970 Fortaleza, CE, Brazil.
| | - R M Freire
- Universidad Central de Chile, Santiago 8330601, Chile.
| | - L M U D Fechine
- Advanced Chemistry Materials Group (GQMat)- Analytical Chemistry and Physical Chemistry Department, Federal Unversity of Ceará, - UFC, Campus do Pici, CP 12100, 60451-970 Fortaleza, CE, Brazil.
| | - C S Clemente
- Department of Organic and Inorganic Chemistry, Federal University of Ceará, Fortaleza, CE 60440-900, Brazil.
| | - J C Denardin
- Physics Department and CEDENNA, University of Santiago of Chile (USACH), Santiago 9170124, Chile.
| | - J C S Dos Santos
- Engineering and Sustainable Development Institute, International Afro-Brazilian Lusophone Integration University, Campus das Auroras, Redenção 62790970, CE, Brazil; Chemical Engineering Department, Federal University of Ceará, Campus do Pici, Bloco 709, Fortaleza 60455760, CE, Brazil.
| | - R Santos-Oliveira
- Brazilian Nuclear Energy Commission, Nuclear Engineering Institute, Laboratory of Nanoradiopharmacy and Synthesis of Novel Radiopharmaceuticals, R. Helio de Almeida, 75, Rio de Janeiro 21941906, RJ, Brazil; Zona Oeste State University, Laboratory of Nanoradiopharmacy, Av Manuel Caldeira de Alvarenga, 1203, Campo Grande 23070200, RJ, Brazil.
| | - Janaina S Rocha
- Industrial Technology and Quality Center of Ceará, R. Prof. Rômulo Proença, s/n - Pici, 60440-552 Fortaleza, CE, Brazil.
| | - P B A Fechine
- Advanced Chemistry Materials Group (GQMat)- Analytical Chemistry and Physical Chemistry Department, Federal Unversity of Ceará, - UFC, Campus do Pici, CP 12100, 60451-970 Fortaleza, CE, Brazil.
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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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3
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Mena-Silva D, Alfaro A, León A, Guajardo-Correa E, Elgueta E, Diaz P, Vilos C, Cardenas H, Denardin JC, Orihuela PA. Zeolite Nanoparticles Loaded with 2-Methoxystradiol as a Novel Drug Delivery System for the Prostate Cancer Therapy. Int J Mol Sci 2023; 24:10967. [PMID: 37446151 DOI: 10.3390/ijms241310967] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 06/26/2023] [Accepted: 06/28/2023] [Indexed: 07/15/2023] Open
Abstract
The estrogen metabolite 2-methoxyestradiol (2ME) is a promissory anticancer drug mainly because of its pro-apoptotic properties in cancer cells. However, the therapeutic use of 2ME has been hampered due to its low solubility and bioavailability. Thus, it is necessary to find new ways of administration for 2ME. Zeolites are inorganic aluminosilicates with a porous structure and are considered good adsorbents and sieves in the pharmaceutical field. Here, mordenite-type zeolite nanoparticles were loaded with 2ME to assess its efficiency as a delivery system for prostate cancer treatment. The 2ME-loaded zeolite nanoparticles showed an irregular morphology with a mean hydrodynamic diameter of 250.9 ± 11.4 nm, polydispersity index of 0.36 ± 0.04, and a net negative surface charge of -34 ± 1.73 meV. Spectroscopy with UV-vis and Attenuated Total Reflectance Infrared Fourier-Transform was used to elucidate the interaction between the 2ME molecules and the zeolite framework showing the formation of a 2ME-zeolite conjugate in the nanocomposite. The studies of adsorption and liberation determined that zeolite nanoparticles incorporated 40% of 2ME while the liberation of 2ME reached 90% at pH 7.4 after 7 days. The 2ME-loaded zeolite nanoparticles also decreased the viability and increased the mRNA of the 2ME-target gene F-spondin, encoded by SPON1, in the human prostate cancer cell line LNCaP. Finally, the 2ME-loaded nanoparticles also decreased the viability of primary cultures from mouse prostate cancer. These results show the development of 2ME-loaded zeolite nanoparticles with physicochemical and biological properties compatible with anticancer activity on the human prostate and highlight that zeolite nanoparticles can be a good carrier system for 2ME.
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Affiliation(s)
- Denisse Mena-Silva
- Laboratorio de Inmunología de la Reproducción, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago 9160000, Chile
| | - Aline Alfaro
- Laboratorio de Inmunología de la Reproducción, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago 9160000, Chile
- Centro para el Desarrollo de la Nanociencia y la Nanotecnología CEDENNA, Santiago 9160000, Chile
| | - Andrea León
- Faculty of Chemistry and Food Chemistry, Technische Universitat Dresden, Bergstrasse 66c, 01069 Dresden, Germany
| | - Emanuel Guajardo-Correa
- Advanced Center for Chronic Diseases (ACCDIS), Facultad de Ciencias Químicas y Farmacéuticas y Universidad de Chile, Santiago 8380000, Chile
| | - Estefania Elgueta
- Laboratorio de Inmunología de la Reproducción, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago 9160000, Chile
- Centro para el Desarrollo de la Nanociencia y la Nanotecnología CEDENNA, Santiago 9160000, Chile
| | - Patricia Diaz
- Centro para el Desarrollo de la Nanociencia y la Nanotecnología CEDENNA, Santiago 9160000, Chile
| | - Cristian Vilos
- Centro para el Desarrollo de la Nanociencia y la Nanotecnología CEDENNA, Santiago 9160000, Chile
- Laboratory of Nanomedicine and Targeted Delivery, School of Medicine, Universidad de Talca, Talca 3460000, Chile
- Center for Nanomedicine, Diagnostic & Drug Development (cND3), Universidad de Talca, Talca 3460000, Chile
| | - Hugo Cardenas
- Laboratorio de Inmunología de la Reproducción, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago 9160000, Chile
| | - Juliano C Denardin
- Centro para el Desarrollo de la Nanociencia y la Nanotecnología CEDENNA, Santiago 9160000, Chile
- Departamento de Física, Universidad de Santiago de Chile, Santiago 9160000, Chile
| | - Pedro A Orihuela
- Laboratorio de Inmunología de la Reproducción, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago 9160000, Chile
- Centro para el Desarrollo de la Nanociencia y la Nanotecnología CEDENNA, Santiago 9160000, Chile
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4
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Martinis EM, Denardin JC, Calderón R, Flores C, Manquián-Cerda K, Maldonado T, Arancibia-Miranda N. Enhanced removal of mercury and lead by a novel and efficient surface-functionalized imogolite with nanoscale zero-valent iron material. Environ Sci Pollut Res Int 2022; 29:20221-20233. [PMID: 34725756 DOI: 10.1007/s11356-021-17242-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Accepted: 10/23/2021] [Indexed: 06/13/2023]
Abstract
A novel hybrid nanomaterial, nanoscale zero-valent iron (nZVI)-grafted imogolite nanotubes (Imo), was synthesized via a fast and straightforward chemical procedure. The as-obtained nanomaterial (Imo-nZVI) was characterized using transmission electron microscopy (TEM), electrophoretic mobility (EM), and vibrating sample magnetometry (VSM). The prepared Imo-nZVI was superparamagnetic at room temperature and could be easily separated by an external magnetic field. Sorption batch experiments were performed for single- and multicomponent systems and demonstrated that Hg2+ and Pb2+ could be quantitatively adsorbed at pH 3.0. For multicomponent systems, maximum adsorption capacities of 61.6 mg·g-1 and 76.9 mg·g-1 were obtained for Hg2+ and Pb2+ respectively. It was observed that the functional groups in Imo-nZVI interact preferentially with analytes according to the Misono softness parameter. The higher performance of Imo-nZVI compared with Imo and nZVI is related to the increased number of adsorption sites in the functionalized nanomaterial. The sorption equilibrium data obeyed the Langmuir model, while kinetic studies demonstrated that the sorption processes of Hg2+ and Pb2+ followed the pseudo-second-order model. This study suggests that the Imo-nZVI composite can be used as a promising sorbent to provide a simple and fast separation method to remove Hg and Pb ions from contaminated water.
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Affiliation(s)
- Estefanía M Martinis
- Facultad de Ingeniería, Universidad Nacional de Cuyo, Consejo Nacional de Investigaciones Científicas y Técnicas, UNCUYO-CONICET, Mendoza, Argentina.
| | - Juliano C Denardin
- Center for the Development of Nanoscience and Nanotechnology, CEDENNA, Santiago, Chile
| | - Raul Calderón
- Centro de Investigación en Recursos Naturales y Sustentabilidad, Universidad Bernardo O'Higgins, Fabrica, 1990, Segundo Piso, Santiago, Chile
- Instituto de Investigaciones Agropecuarias, INIA La Platina, Santa Rosa, 11610, Santiago, Chile
| | - Cristóbal Flores
- Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Karen Manquián-Cerda
- Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Tamara Maldonado
- Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Nicolás Arancibia-Miranda
- Center for the Development of Nanoscience and Nanotechnology, CEDENNA, Santiago, Chile.
- Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile.
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5
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Dhanalakshmi R, Giridharan NV, Denardin JC. Magnetic Field-Assisted Photocatalytic Degradation of Organic Pollutants over Bi 1-xR xFeO 3 (R = Ce, Tb; x = 0.00, 0.05, 0.10 and 0.15) Nanostructures. Materials (Basel) 2021; 14:4079. [PMID: 34361272 PMCID: PMC8347960 DOI: 10.3390/ma14154079] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/27/2021] [Revised: 07/14/2021] [Accepted: 07/20/2021] [Indexed: 11/16/2022]
Abstract
Magnetic-field-accelerated photocatalytic degradation of the phenol red (PR) as a model organic pollutant was studied using rare-earth elements modified BiFeO3 (Bi1-xRxFeO3 (R = Ce, Tb; x = 0.0, 0.05, 0.10 and 0.15); BFO: RE) nanostructures. The nanostructures were prepared via the hydrothermal process and their morphological, structural, functional, optical and magnetic features were investigated in detail. The effect of magnetic fields (MFs) on photocatalysis were examined by applying the different MFs under visible light irradiation. The enhanced photodegradation efficiencies were achieved by increasing the MF up to 0.5T and reduced at 0.7T for the compositions x = 0.10 in both Ce and Tb substituted BFO. Further, mineralization efficiencies of PR, reproducibility of MF-assisted photocatalysis, stability and recyclability of BFO: RE nanostructures were also tested.
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Affiliation(s)
- Radhalayam Dhanalakshmi
- Physics Department and CEDENNA, University of Santiago of Chile (USACH), Santiago 9170124, Chile
| | - Nambi Venkatesan Giridharan
- Advanced Functional Materials Laboratory, Department of Physics, National Institute of Technology, Tiruchirappalli 620015, TN, India;
| | - Juliano C. Denardin
- Physics Department and CEDENNA, University of Santiago of Chile (USACH), Santiago 9170124, Chile
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dos Santos SB, Pereira SA, Rodrigues FA, da Silva AC, de Almeida RR, Sousa AC, Fechine LM, Denardin JC, Araneda F, Sá LG, da Silva CR, Nobre Júnior HV, Ricardo NM. Antibacterial activity of fluoxetine-loaded starch nanocapsules. Int J Biol Macromol 2020; 164:2813-2817. [DOI: 10.1016/j.ijbiomac.2020.08.184] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Revised: 08/07/2020] [Accepted: 08/23/2020] [Indexed: 01/15/2023]
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Tejo F, Toneto D, Oyarzún S, Hermosilla J, Danna CS, Palma JL, da Silva RB, Dorneles LS, Denardin JC. Stabilization of Magnetic Skyrmions on Arrays of Self-Assembled Hexagonal Nanodomes for Magnetic Recording Applications. ACS Appl Mater Interfaces 2020; 12:53454-53461. [PMID: 33169962 DOI: 10.1021/acsami.0c14350] [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] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Magnetic skyrmions are nontrivial spin textures that resist external perturbations, being promising candidates for the next-generation recording devices. Nevertheless, a major challenge in realizing skyrmion-based devices is the stabilization of ordered arrays of these spin textures under ambient conditions and zero applied field. Here, we demonstrate for the first time the formation and stabilization of magnetic skyrmions on the arrays of self-assembled hexagonal nanodomes taking advantage of the intrinsic properties of its curved geometry. Magnetic force microscopy images from the arrays of 100 nm nanodomes showed stable skyrmions at the zero field that are arranged following the topography of the nanostructure. Micromagnetic simulations are compared to the experiments to determine the correlation of the domain textures with the topography of the samples. We propose a simple method to nucleate and annihilate skyrmions, opening the possibility for an ultradense data storage based on the high stability and low energy consumption of the skyrmionic textures.
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Affiliation(s)
- Felipe Tejo
- Departamento de Física, Universidad de Santiago de Chile, Santiago 9170124, Chile
- CEDENNA, Universidad de Santiago de Chile, Santiago, Chile
- Instituto de Ciencia de Materiales de Madrid, CSIC, Cantoblanco, 28049 Madrid, Spain
| | - Denilson Toneto
- Departamento de Física, Universidade Federal de Santa Maria, UFSM, Santa Maria, RS 97105-900, Brazil
| | - Simón Oyarzún
- Departamento de Física, Universidad de Santiago de Chile, Santiago 9170124, Chile
- CEDENNA, Universidad de Santiago de Chile, Santiago, Chile
| | - José Hermosilla
- Departamento de Física, Universidad de Santiago de Chile, Santiago 9170124, Chile
| | - Caroline S Danna
- Departamento de Física, Universidad de Santiago de Chile, Santiago 9170124, Chile
| | - Juan L Palma
- Escuela de Ingeniería, Universidad Central de Chile, Santiago 8330601, Chile
- CEDENNA, Universidad de Santiago de Chile, Santiago, Chile
| | - Ricardo B da Silva
- Departamento de Física, Universidade Federal de Santa Maria, UFSM, Santa Maria, RS 97105-900, Brazil
| | - Lucio S Dorneles
- Departamento de Física, Universidade Federal de Santa Maria, UFSM, Santa Maria, RS 97105-900, Brazil
| | - Juliano C Denardin
- Departamento de Física, Universidad de Santiago de Chile, Santiago 9170124, Chile
- CEDENNA, Universidad de Santiago de Chile, Santiago, Chile
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Bejide M, Contreras P, Homm P, Duran B, García-Merino JA, Rosenkranz A, Denardin JC, del Río R, Hevia SA. Nickel Nanopillar Arrays Electrodeposited on Silicon Substrates Using Porous Alumina Templates. Molecules 2020; 25:molecules25225377. [PMID: 33212989 PMCID: PMC7698564 DOI: 10.3390/molecules25225377] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [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: 10/01/2020] [Revised: 11/06/2020] [Accepted: 11/11/2020] [Indexed: 12/02/2022] Open
Abstract
Nickel nanopillar arrays were electrodeposited onto silicon substrates using porous alumina membranes as a template. The characterization of the samples was done by scanning electron microscopy, X-ray diffraction, and alternating force gradient magnetometry. Ni nanostructures were directly grown on Si by galvanostatic and potentiostatic electrodeposition techniques in three remarkable charge transfer configurations. Differences in the growth mechanisms of the nanopillars were observed, depending on the deposition method. A high correlation between the height of the nanopillars and the charge synthesis was observed irrespective of the electrochemical technique. The magnetization measurements demonstrated a main dependence with the height of the nanopillars. The synthesis of Ni nanosystems with a controllable aspect ratio provides an effective way to produce well-ordered networks for wide scientific applications.
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Affiliation(s)
- Matías Bejide
- Instituto de Física, Pontificia Universidad Católica de Chile, Casilla 306, Santiago 6904411, Chile; (M.B.); (P.H.); (J.A.G.-M.); (A.R.)
- Centro de Investigación en Nanotecnología y Materiales Avanzados, Pontificia Universidad Católica de Chile, Casilla 306, Santiago 6904411, Chile; (B.D.); (R.d.R.)
| | - Patricio Contreras
- Facultad de Química, Pontificia Universidad Católica de Chile, Casilla 306, Santiago 6904411, Chile;
| | - Pia Homm
- Instituto de Física, Pontificia Universidad Católica de Chile, Casilla 306, Santiago 6904411, Chile; (M.B.); (P.H.); (J.A.G.-M.); (A.R.)
| | - Boris Duran
- Centro de Investigación en Nanotecnología y Materiales Avanzados, Pontificia Universidad Católica de Chile, Casilla 306, Santiago 6904411, Chile; (B.D.); (R.d.R.)
| | - José Antonio García-Merino
- Instituto de Física, Pontificia Universidad Católica de Chile, Casilla 306, Santiago 6904411, Chile; (M.B.); (P.H.); (J.A.G.-M.); (A.R.)
- Centro de Investigación en Nanotecnología y Materiales Avanzados, Pontificia Universidad Católica de Chile, Casilla 306, Santiago 6904411, Chile; (B.D.); (R.d.R.)
| | - Andreas Rosenkranz
- Instituto de Física, Pontificia Universidad Católica de Chile, Casilla 306, Santiago 6904411, Chile; (M.B.); (P.H.); (J.A.G.-M.); (A.R.)
- Centro de Investigación en Nanotecnología y Materiales Avanzados, Pontificia Universidad Católica de Chile, Casilla 306, Santiago 6904411, Chile; (B.D.); (R.d.R.)
| | - Juliano C. Denardin
- Department of Physics, University of Santiago and CEDENNA, Santiago 9170124, Chile;
| | - Rodrigo del Río
- Centro de Investigación en Nanotecnología y Materiales Avanzados, Pontificia Universidad Católica de Chile, Casilla 306, Santiago 6904411, Chile; (B.D.); (R.d.R.)
- Facultad de Química, Pontificia Universidad Católica de Chile, Casilla 306, Santiago 6904411, Chile;
| | - Samuel A. Hevia
- Instituto de Física, Pontificia Universidad Católica de Chile, Casilla 306, Santiago 6904411, Chile; (M.B.); (P.H.); (J.A.G.-M.); (A.R.)
- Centro de Investigación en Nanotecnología y Materiales Avanzados, Pontificia Universidad Católica de Chile, Casilla 306, Santiago 6904411, Chile; (B.D.); (R.d.R.)
- Correspondence: ; Tel.: +56-9-9998-6438
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9
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Moreira KDS, de Oliveira ALB, Júnior LSDM, Monteiro RRC, da Rocha TN, Menezes FL, Fechine LMUD, Denardin JC, Michea S, Freire RM, Fechine PBA, Souza MCM, Dos Santos JCS. Lipase From Rhizomucor miehei Immobilized on Magnetic Nanoparticles: Performance in Fatty Acid Ethyl Ester (FAEE) Optimized Production by the Taguchi Method. Front Bioeng Biotechnol 2020; 8:693. [PMID: 32695765 PMCID: PMC7338345 DOI: 10.3389/fbioe.2020.00693] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [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: 03/23/2020] [Accepted: 06/03/2020] [Indexed: 12/12/2022] Open
Abstract
In this communication, it was evaluated the production of fatty acid ethyl ester (FAAE) from the free fatty acids of babassu oil catalyzed by lipase from Rhizomucor miehei (RML) immobilized on magnetic nanoparticles (MNP) coated with 3-aminopropyltriethoxysilane (APTES), Fe3O4@APTES-RML or RML-MNP for short. MNPs were prepared by co-precipitation coated with 3-aminopropyltriethoxysilane and used as a support to immobilize RML (immobilization yield: 94.7 ± 1.0%; biocatalyst activity: 341.3 ± 1.2 Up–NPB/g), which were also activated with glutaraldehyde and then used to immobilize RML (immobilization yield: 91.9 ± 0.2%; biocatalyst activity: 199.6 ± 3.5 Up–NPB/g). RML-MNP was characterized by X-Ray Powder Diffraction (XRPD), Fourier Transform-Infrared (FTIR) spectroscopy and Scanning Electron Microscope (SEM), proving the incorporation and immobilization of RML on the APTES matrix. In addition, the immobilized biocatalyst presented at 60°C a half-life 16–19 times greater than that of the soluble lipase in the pH range 5–10. RML and RML-MNP showed higher activity at pH 7; the immobilized enzyme was more active than the free enzyme in the pH range (5–10) analyzed. For the production of fatty acid ethyl ester, under optimal conditions [40°C, 6 h, 1:1 (FFAs/alcohol)] determined by the Taguchi method, it was possible to obtain conversion of 81.7 ± 0.7% using 5% of RML-MNP.
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Affiliation(s)
- Katerine da S Moreira
- Departamento de Engenharia Química, Universidade Federal do Ceará, Campus do Pici, Fortaleza, Brazil
| | - André L B de Oliveira
- Departamento de Engenharia Química, Universidade Federal do Ceará, Campus do Pici, Fortaleza, Brazil
| | - Lourembergue S de M Júnior
- Instituto de Engenharias e Desenvolvimento Sustentável, Universidade da Integração Internacional da Lusofonia Afro-Brasileira, Campus das Auroras, Redenção, Brazil
| | - Rodolpho R C Monteiro
- Departamento de Engenharia Química, Universidade Federal do Ceará, Campus do Pici, Fortaleza, Brazil
| | - Thays N da Rocha
- Departamento de Engenharia Química, Universidade Federal do Ceará, Campus do Pici, Fortaleza, Brazil
| | - Fernando L Menezes
- Group of Chemistry of Advanced Materials (GQMat) - Department of Analytical Chemistry and Physic-chemistry, Federal University of Ceará - UFC, Fortaleza, Brazil
| | - Lillian M U D Fechine
- Group of Chemistry of Advanced Materials (GQMat) - Department of Analytical Chemistry and Physic-chemistry, Federal University of Ceará - UFC, Fortaleza, Brazil
| | - Juliano C Denardin
- Departamento de Física/Center for the Development of Nanoscience and Nanotechnology (CEDENNA), Universidad de Santiago de Chile (USACH), Santiago, Chile
| | - Sebastian Michea
- Institute of Applied Chemical Sciences, Universidad Autónoma de Chile, Santiago, Chile
| | - Rafael M Freire
- Institute of Applied Chemical Sciences, Universidad Autónoma de Chile, Santiago, Chile
| | - Pierre B A Fechine
- Group of Chemistry of Advanced Materials (GQMat) - Department of Analytical Chemistry and Physic-chemistry, Federal University of Ceará - UFC, Fortaleza, Brazil
| | - Maria C M Souza
- Instituto de Engenharias e Desenvolvimento Sustentável, Universidade da Integração Internacional da Lusofonia Afro-Brasileira, Campus das Auroras, Redenção, Brazil
| | - José C S Dos Santos
- Departamento de Engenharia Química, Universidade Federal do Ceará, Campus do Pici, Fortaleza, Brazil.,Instituto de Engenharias e Desenvolvimento Sustentável, Universidade da Integração Internacional da Lusofonia Afro-Brasileira, Campus das Auroras, Redenção, Brazil
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10
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Freire TM, Fechine LMUD, Queiroz DC, Freire RM, Denardin JC, Ricardo NMPS, Rodrigues TNB, Gondim DR, Junior IJS, Fechine PBA. Magnetic Porous Controlled Fe 3O 4-Chitosan Nanostructure: An Ecofriendly Adsorbent for Efficient Removal of Azo Dyes. Nanomaterials (Basel) 2020; 10:nano10061194. [PMID: 32575349 PMCID: PMC7353100 DOI: 10.3390/nano10061194] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [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: 05/11/2020] [Revised: 06/05/2020] [Accepted: 06/13/2020] [Indexed: 11/16/2022]
Abstract
In this work, chitosan/magnetite nanoparticles (ChM) were quickly synthesized according to our previous report based on co-precipitation reaction under ultrasound (US) irradiation. Besides ChM was in-depth structurally characterized, showing a crystalline phase corresponding to magnetite and presenting a spheric morphology, a "nanorod"-type morphology was also obtained after increasing reaction time for eight minutes. Successfully, both morphologies presented a nanoscale range with an average particle size of approximately 5-30 nm, providing a superparamagnetic behavior with saturation magnetization ranging from 44 to 57 emu·g-1. As ChM nanocomposites have shown great versatility considering their properties, we proposed a comparative study using three different amine-based nanoparticles, non-surface-modified and surface-modified, for removal of azo dyes from aqueous solutions. From nitrogen adsorption-desorption isotherm results, the surface-modified ChMs increased the specific surface area and pore size. Additionally, the adsorption of anionic azo dyes (reactive black 5 (RB5) and methyl orange (MO)) on nanocomposites surface was pH-dependent, where surface-modified samples presented a better response under pH 4 and non-modified one under pH 8. Indeed, adsorption capacity results also showed different adsorption mechanisms, molecular size effect and electrostatic attraction, for unmodified and modified ChMs, respectively. Herein, considering all results and nanocomposite-type structure, ChM nanoparticles seem to be a suitable potential alternative for conventional anionic dyes adsorbents, as well as both primary materials source, chitosan and magnetite, are costless and easily supplied.
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Affiliation(s)
- Tiago M. Freire
- Group of Chemistry of Advanced Materials (GQMat)—Department of Analytical Chemistry and Physical-Chemistry, Federal University of Ceará—UFC, Campus do Pici, CP 12100, Fortaleza CEP 60451-970, Brazil; (T.M.F.); (L.M.U.D.F.)
| | - Lillian M. U. D. Fechine
- Group of Chemistry of Advanced Materials (GQMat)—Department of Analytical Chemistry and Physical-Chemistry, Federal University of Ceará—UFC, Campus do Pici, CP 12100, Fortaleza CEP 60451-970, Brazil; (T.M.F.); (L.M.U.D.F.)
| | - Danilo C. Queiroz
- Department of Organic and Inorganic Chemistry, Federal University of Ceará—UFC, Campus do Pici, CP 12100, Fortaleza CEP 60451-970, Brazil; (D.C.Q.); (N.M.P.S.R.)
| | - Rafael M. Freire
- Institute of Applied Chemical Sciences, Universidad Autónoma de Chile, Santiago 8910060, Chile;
| | - Juliano C. Denardin
- Department of Physical/CEDENNA, University of Santiago de Chile, USACH, Av. Ecuador 3493, Santiago 9170020, Chile;
| | - Nágila M. P. S. Ricardo
- Department of Organic and Inorganic Chemistry, Federal University of Ceará—UFC, Campus do Pici, CP 12100, Fortaleza CEP 60451-970, Brazil; (D.C.Q.); (N.M.P.S.R.)
| | - Thaina N. B. Rodrigues
- Department of Chemical Engineering, Federal University of Ceará—UFC, Campus do Pici, CP 12100, Fortaleza CEP 60451-970, Brazil; (T.N.B.R.); (D.R.G.); (I.J.S.J.)
| | - Diego R. Gondim
- Department of Chemical Engineering, Federal University of Ceará—UFC, Campus do Pici, CP 12100, Fortaleza CEP 60451-970, Brazil; (T.N.B.R.); (D.R.G.); (I.J.S.J.)
| | - Ivanildo J. S. Junior
- Department of Chemical Engineering, Federal University of Ceará—UFC, Campus do Pici, CP 12100, Fortaleza CEP 60451-970, Brazil; (T.N.B.R.); (D.R.G.); (I.J.S.J.)
| | - Pierre B. A. Fechine
- Group of Chemistry of Advanced Materials (GQMat)—Department of Analytical Chemistry and Physical-Chemistry, Federal University of Ceará—UFC, Campus do Pici, CP 12100, Fortaleza CEP 60451-970, Brazil; (T.M.F.); (L.M.U.D.F.)
- Correspondence: ; Tel.: +55-(85)-3366-9047
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11
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Ribeiro VGP, Mota JPF, Júnior AEC, Lima NMA, Fechine PBA, Denardin JC, Carbone L, Bloise E, Mele G, Mazzetto SE. Nanomaterials Based on Fe 3O 4 and Phthalocyanines Derived from Cashew Nut Shell Liquid. Molecules 2019; 24:molecules24183284. [PMID: 31505873 PMCID: PMC6767058 DOI: 10.3390/molecules24183284] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [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: 08/05/2019] [Revised: 08/31/2019] [Accepted: 09/05/2019] [Indexed: 11/16/2022] Open
Abstract
In this work we report the synthesis of new hybrid nanomaterials in the core/shell/shell morphology, consisting of a magnetite core (Fe3O4) and two consecutive layers of oleic acid (OA) and phthalocyanine molecules, the latter derived from cashew nut shell liquid (CNSL). The synthesis of Fe3O4 nanoparticle was performed via co-precipitation procedure, followed by the nanoparticle coating with OA by hydrothermal method. The phthalocyanines anchorage on the Fe3O4/OA core/shell nanomaterial was performed by facile and effective sonication method. The as obtained Fe3O4/OA/phthalocyanine hybrids were investigated by Fourier transform infrared spectroscopy, X-ray diffraction, UV-visible spectroscopy, transmission electron microscopy (TEM), thermogravimetric analysis and magnetic measurements. TEM showed round-shaped nanomaterials with sizes in the range of 12–15 nm. Nanomaterials presented saturation magnetization (Ms) in the 1–16 emu/g and superparamagnetic behavior. Furthermore, it was observed that the thermal stability of the samples was directly affected by the insertion of different transition metals in the ring cavity of the phthalocyanine molecule.
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Affiliation(s)
- Viviane G P Ribeiro
- Laboratory of Products and Process Technology (LPT), Organic and Inorganic Chemistry Department, Federal University of Ceará (UFC), Campus do Pici, Fortaleza-CE 60440-900, Brazil.
| | - João P F Mota
- Laboratory of Products and Process Technology (LPT), Organic and Inorganic Chemistry Department, Federal University of Ceará (UFC), Campus do Pici, Fortaleza-CE 60440-900, Brazil.
| | - Antônio E Costa Júnior
- Laboratory of Products and Process Technology (LPT), Organic and Inorganic Chemistry Department, Federal University of Ceará (UFC), Campus do Pici, Fortaleza-CE 60440-900, Brazil.
| | - Nayane M A Lima
- Laboratory of Products and Process Technology (LPT), Organic and Inorganic Chemistry Department, Federal University of Ceará (UFC), Campus do Pici, Fortaleza-CE 60440-900, Brazil.
| | - Pierre B A Fechine
- Group of Chemistry of Advanced Materials (GQMat)-Department of Analytical Chemistry and Physical-Chemistry, Federal University of Ceará-UFC, Campus do Pici, CP 12100, Fortaleza CEP 60451-970, CE, Brazil.
| | - Juliano C Denardin
- Department of Physics, Universidad de Santiago de Chile and CEDENNA, USACH, Av. Ecuador, Santiago 3493, Chile.
| | - Luigi Carbone
- CNR NANOTEC-Istituto di Nanotecnologia, c/o Campus Ecotekne, Università del Salento, Via Monteroni, 73100 Lecce, Italy.
| | - Ermelinda Bloise
- Department of Engineering for Innovation, University of Salento, Via Arnesano, 73100 Lecce, Italy.
| | - Giuseppe Mele
- Department of Engineering for Innovation, University of Salento, Via Arnesano, 73100 Lecce, Italy.
| | - Selma E Mazzetto
- Laboratory of Products and Process Technology (LPT), Organic and Inorganic Chemistry Department, Federal University of Ceará (UFC), Campus do Pici, Fortaleza-CE 60440-900, Brazil.
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12
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dos Santos LP, Freire RM, Michea S, Denardin JC, Araújo DB, Barros EB, Correia AN, de Lima-Neto P. Electrodeposition of 1-D tellurium nanostructure on gold surface from choline chloride-urea and choline chloride-ethylene glycol mixtures. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.111038] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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13
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Brandão J, Dugato DA, Seeger RL, Denardin JC, Mori TJA, Cezar JC. Observation of magnetic skyrmions in unpatterned symmetric multilayers at room temperature and zero magnetic field. Sci Rep 2019; 9:4144. [PMID: 30858450 PMCID: PMC6412027 DOI: 10.1038/s41598-019-40705-4] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [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: 07/30/2018] [Accepted: 02/08/2019] [Indexed: 11/10/2022] Open
Abstract
Magnetic skyrmions are promising candidates for the next generation of spintronic devices due to their small size and topologically protected structure. One challenge for using these magnetic states in applications lies on controlling the nucleation process and stabilization that usually requires an external force. Here, we report on the evidence of skyrmions in unpatterned symmetric Pd/Co/Pd multilayers at room temperature without prior application of neither electric current nor magnetic field. Decreasing the ferromagnetic interlayer thickness, the tuning of the physical properties across the ferromagnetic/non-magnetic interface gives rise to a transition from worm like domains patterns to isolated skyrmions as demonstrated by magnetic force microscopy. On the direct comparison of the measured and simulated skyrmions size, the interfacial Dzyaloshinskii-Moriya interaction (iDMI) was estimated, reveling that isolated skyrmions are just stabilized at zero magnetic field taking into account non-null values of iDMI. Our findings provide new insights towards the use of stabilized skyrmions for room temperature devices in nominally symmetric multilayers.
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Affiliation(s)
- J Brandão
- Laboratório Nacional de Luz Síncrotron, Centro Nacional de Pesquisa em Energia e Materiais, 13083-970, Campinas, SP, Brazil.
| | - D A Dugato
- Laboratório Nacional de Luz Síncrotron, Centro Nacional de Pesquisa em Energia e Materiais, 13083-970, Campinas, SP, Brazil.,Departamento de Física, Universidade Federal de Santa Maria, 97105-900, Santa Maria, RS, Brazil
| | - R L Seeger
- Departamento de Física, Universidade Federal de Santa Maria, 97105-900, Santa Maria, RS, Brazil
| | - J C Denardin
- Departamento de Física, Universidade Federal de Santa Maria, 97105-900, Santa Maria, RS, Brazil.,Departamento de Física and CEDENNA, Universidad de Santiago de Chile, 9170124, Santiago, Chile
| | - T J A Mori
- Laboratório Nacional de Luz Síncrotron, Centro Nacional de Pesquisa em Energia e Materiais, 13083-970, Campinas, SP, Brazil
| | - J C Cezar
- Laboratório Nacional de Luz Síncrotron, Centro Nacional de Pesquisa em Energia e Materiais, 13083-970, Campinas, SP, Brazil.
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14
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Barbosa JS, Neto DMA, Freire RM, Rocha JS, Fechine LMUD, Denardin JC, Valentini A, de Araújo TG, Mazzetto SE, Fechine PBA. Ultrafast sonochemistry-based approach to coat TiO 2 commercial particles for sunscreen formulation. Ultrason Sonochem 2018; 48:340-348. [PMID: 30080559 DOI: 10.1016/j.ultsonch.2018.06.015] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2018] [Revised: 06/15/2018] [Accepted: 06/18/2018] [Indexed: 06/08/2023]
Abstract
TiO2 is a common inorganic filter used in sunscreens due to its photoprotective effect on the skin against UV radiation. However, the use of this kind of material in cosmetics is limited by its inherent photocatalytic activity. It is known that coating on TiO2 surface can improve some features. Although, many of the methodologies used for this purpose are still laborious and time-consuming. Thus, this work reports a novel, easy, cheap and fast strategy to coat TiO2 particles by using a sonochemistry approach, aiming to decrease photocatalytic activity and to enhance colloidal stability. For this proposal, SiO2, Al2O3, ZrO2 and sodium polyacrylate (PAANa) were used to tune the surface of commercial TiO2 particles and they were applied in a sunscreen formulation. The samples were characterized by XRPD, FT-IR, DLS, EDS, SEM and TEM. The photocatalytic activity and UV-shielding ability were also evaluated. The sunscreen formulations were prepared and characterized by zeta potential, DLS, and Sun Protection Factor (SPF). FT-IR, EDS, and charge surface of the particles confirmed the success of the sonochemistry coating. Additionally, TiO2@Al2O3, TiO2@SiO2 and TiO2@PAANa show a lower photocatalytic activity than original TiO2 with similar UV-shielding ability. The sunscreens produced with the coated TiO2 have similar SPF to the one with commercial TiO2. Specifically, the sunscreen with TiO2@PAANa shows an increase in colloidal stability. Herein, the incorporation of the sonochemical-coated TiO2 particles in sunscreen formulations may produce sunscreens with better aesthetic appearance and a greater health security due to its lower free radicals production.
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Affiliation(s)
- J S Barbosa
- Group of Chemistry of Advanced Materials (GQMat) - Department of Analytical Chemistry and Physical-Chemistry, Federal University of Ceará - UFC, Campus do Pici, CP 12100, CEP 60451-970 Fortaleza, CE, Brazil
| | - D M A Neto
- Group of Chemistry of Advanced Materials (GQMat) - Department of Analytical Chemistry and Physical-Chemistry, Federal University of Ceará - UFC, Campus do Pici, CP 12100, CEP 60451-970 Fortaleza, CE, Brazil; Natural Science and Mathematics Institute, University for International Integration of the Afro-Brazilian Lusophony - UNILAB, Campus dos Palmares, Redenção, CE, Brazil
| | - R M Freire
- Department of Physics, Universidad de Santiago de Chile and CEDENNA, USACH, Av. Ecuador, 3493 Santiago, Chile.
| | - J S Rocha
- Group of Chemistry of Advanced Materials (GQMat) - Department of Analytical Chemistry and Physical-Chemistry, Federal University of Ceará - UFC, Campus do Pici, CP 12100, CEP 60451-970 Fortaleza, CE, Brazil.
| | - L M U D Fechine
- Group of Chemistry of Advanced Materials (GQMat) - Department of Analytical Chemistry and Physical-Chemistry, Federal University of Ceará - UFC, Campus do Pici, CP 12100, CEP 60451-970 Fortaleza, CE, Brazil
| | - J C Denardin
- Department of Physics, Universidad de Santiago de Chile and CEDENNA, USACH, Av. Ecuador, 3493 Santiago, Chile; Departament of Physics, Federal University of Santa Maria, 97105-900 Santa Maria, RS, Brazil.
| | - A Valentini
- Laboratory of Adsorption and Catalysis (Langmuir) - Department of Analytical Chemistry and Physical-Chemistry, Federal University of Ceará - UFC, Campus do Pici, CP 12100, CEP 60451-970 Fortaleza, CE, Brazil.
| | - T G de Araújo
- Laboratory of Cosmetology, Department of Pharmacy, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceará, Fortaleza, CE, Brazil
| | - S E Mazzetto
- Group of Chemistry of Advanced Materials (GQMat) - Department of Analytical Chemistry and Physical-Chemistry, Federal University of Ceará - UFC, Campus do Pici, CP 12100, CEP 60451-970 Fortaleza, CE, Brazil.
| | - P B A Fechine
- Group of Chemistry of Advanced Materials (GQMat) - Department of Analytical Chemistry and Physical-Chemistry, Federal University of Ceará - UFC, Campus do Pici, CP 12100, CEP 60451-970 Fortaleza, CE, Brazil.
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15
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Silva MA, Romo AI, Abreu DS, Carepo MS, Lemus L, Jafelicci M, Paulo TF, Nascimento OR, Vargas E, Denardin JC, Diógenes IC. Magnetic nanoparticles as a support for a copper (II) complex with nuclease activity. J Inorg Biochem 2018; 186:294-300. [DOI: 10.1016/j.jinorgbio.2018.06.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2018] [Revised: 05/17/2018] [Accepted: 06/24/2018] [Indexed: 11/16/2022]
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16
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de Oliveira RC, Sousa CP, Freire TM, Freire RM, Denardin JC, Fechine PBA, Becker H, Morais S, de Lima-Neto P, Correia AN. Chitosan-magnetite nanocomposite as a sensing platform to bendiocarb determination. Anal Bioanal Chem 2018; 410:7229-7238. [PMID: 30151686 DOI: 10.1007/s00216-018-1330-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [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: 06/04/2018] [Revised: 08/02/2018] [Accepted: 08/15/2018] [Indexed: 12/11/2022]
Abstract
A novel platform for carbamate-based pesticide quantification using a chitosan/magnetic iron oxide (Chit-Fe3O4) nanocomposite as a glassy carbon electrode (GCE) modifier is shown for an analytical methodology for determination of bendiocarb (BND). The BND oxidation signal using GCE/Chit-Fe3O4 compared with bare GCE was catalyzed, showing a 37.5% of current increase with the peak potential towards less positive values, showing method's increased sensitivity and selectivity. Using square-wave voltammetry (SWV), calibration curves for BND determination were obtained (n = 3), and calculated detection and quantification limits values were 2.09 × 10-6 mol L-1 (466.99 ppb) and 6.97 × 10-6 mol L-1 (1555.91 ppb), respectively. The proposed electroanalytical methodology was successfully applied for BND quantification in natural raw waters without any sample pretreatment, proving that the GCE/Chit-Fe3O4 modified electrode showed great potential for BND determination in complex samples. ᅟ Graphical abstract.
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Affiliation(s)
- Raissa C de Oliveira
- Departamento de Química Analítica e Físico-Química, Centro de Ciências, Universidade Federal do Ceará, Bloco 940, Campus do Pici, Pici, Fortaleza, CE, 60440-900, Brazil
| | - Camila P Sousa
- Departamento de Química Analítica e Físico-Química, Centro de Ciências, Universidade Federal do Ceará, Bloco 940, Campus do Pici, Pici, Fortaleza, CE, 60440-900, Brazil.
| | - Tiago M Freire
- Departamento de Química Analítica e Físico-Química, Centro de Ciências, Universidade Federal do Ceará, Bloco 940, Campus do Pici, Pici, Fortaleza, CE, 60440-900, Brazil
| | - Rafael M Freire
- Departamento de Física, Universidade de Santiago de Chile, Av. Ecuador, 3493, Santiago, Chile
- Center for the Development of Nanoscience and Nanotechnology (CEDENNA), 917-0124, Santiago, Chile
| | - Juliano C Denardin
- Departamento de Física, Universidade de Santiago de Chile, Av. Ecuador, 3493, Santiago, Chile
- Center for the Development of Nanoscience and Nanotechnology (CEDENNA), 917-0124, Santiago, Chile
| | - Pierre B A Fechine
- Departamento de Química Analítica e Físico-Química, Centro de Ciências, Universidade Federal do Ceará, Bloco 940, Campus do Pici, Pici, Fortaleza, CE, 60440-900, Brazil
| | - Helena Becker
- Departamento de Química Analítica e Físico-Química, Centro de Ciências, Universidade Federal do Ceará, Bloco 940, Campus do Pici, Pici, Fortaleza, CE, 60440-900, Brazil
| | - Simone Morais
- REQUIMTE-LAQV, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, R. Dr. António Bernardino de Almeida 431, 4200-072, Porto, Portugal
| | - Pedro de Lima-Neto
- Departamento de Química Analítica e Físico-Química, Centro de Ciências, Universidade Federal do Ceará, Bloco 940, Campus do Pici, Pici, Fortaleza, CE, 60440-900, Brazil
| | - Adriana N Correia
- Departamento de Química Analítica e Físico-Química, Centro de Ciências, Universidade Federal do Ceará, Bloco 940, Campus do Pici, Pici, Fortaleza, CE, 60440-900, Brazil
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17
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Pereira A, Palma JL, Denardin JC, Escrig J. Temperature-dependent magnetic properties of Ni nanotubes synthesized by atomic layer deposition. Nanotechnology 2016; 27:345709. [PMID: 27454022 DOI: 10.1088/0957-4484/27/34/345709] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Highly-ordered and conformal Ni nanotube arrays were prepared by combining atomic layer deposition (ALD) in a porous alumina matrix with a subsequent thermal reduction process. In order to obtain NiO tubes, one ALD NiCp2/O3 cycle was repeated 2000 times. After the ALD process, the sample is reduced from NiO to metallic Ni under hydrogen atmosphere. Their magnetic properties such as coercivity and squareness have been determined in a vibrating sample magnetometer in the temperature range from 5-300 K for applied magnetic fields parallel and perpendicular to the nanotube axis. Ni nanotubes synthesized by ALD provide a promising opportunity for potential applications in spintronics, data storage and bio-applications.
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Affiliation(s)
- Alejandro Pereira
- Department of Physics, Universidad de Santiago de Chile and Center for the Development of Nanoscience and Nanotechnology, 9170124 Santiago, Chile
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18
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Pereira A, Palma JL, Vázquez M, Denardin JC, Escrig J. A soft/hard magnetic nanostructure based on multisegmented CoNi nanowires. Phys Chem Chem Phys 2015; 17:5033-8. [PMID: 25597517 DOI: 10.1039/c4cp05665e] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [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
In this paper we have introduced a new soft/hard nanostructure based on multisegmented CoNi nanowire arrays having diameters of around 110 nm and made of five segments with nominal compositions of Co, Co66Ni33, Co50Ni50, Co33Ni66 and Ni, each of which has a length of 800 nm, so that the total length of the multisegmented nanowire is 4 μm. These arrays have been synthesized by means of potentiostatic electrodeposition into the pores of hard-anodic alumina templates. The morphology, chemical composition and microstructure of the multisegmented CoNi nanowires were determined by high-resolution scanning electron microscopy, energy dispersive X-ray microanalysis, and powder X-ray diffraction method, respectively. The room temperature magnetic behavior of the multisegmented nanowire arrays is also studied and compared with CoNi nanowire arrays with homogeneous composition (non-segmented nanowires), synthesized in the same templates and having the same dimensions as the segmented ones. These nanostructures could be used to control the movement of magnetic domain walls. In this way, these nanostructures can be an alternative to store information or even perform logic functions.
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Affiliation(s)
- A Pereira
- Avenida Ecuador 3493, Departamento de Física, Universidad de Santiago de Chile, 9170124 Santiago, Chile.
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19
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Barreto ACH, Santiago VR, Freire RM, Mazzetto SE, Denardin JC, Mele G, Cavalcante IM, Ribeiro MENP, Ricardo NMPS, Gonçalves T, Carbone L, Lemos TLG, Pessoa ODL, Fechine PBA. Magnetic nanosystem for cancer therapy using oncocalyxone a, an antitomour secondary metabolite isolated from a Brazilian plant. Int J Mol Sci 2013; 14:18269-83. [PMID: 24013376 PMCID: PMC3794780 DOI: 10.3390/ijms140918269] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [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: 04/13/2013] [Revised: 06/23/2013] [Accepted: 07/13/2013] [Indexed: 11/17/2022] Open
Abstract
This paper describes the investigation and development of a novel magnetic drug delivery nanosystem (labeled as MO-20) for cancer therapy. The drug employed was oncocalyxone A (onco A), which was isolated from Auxemma oncocalyx, an endemic Brazilian plant. It has a series of pharmacological properties: antioxidant, cytotoxic, analgesic, anti-inflammatory, antitumor and antiplatelet. Onco A was associated with magnetite nanoparticles in order to obtain magnetic properties. The components of MO-20 were characterized by XRD, FTIR, TGA, TEM and Magnetization curves. The MO-20 presented a size of about 30 nm and globular morphology. In addition, drug releasing experiments were performed, where it was observed the presence of the anomalous transport. The results found in this work showed the potential of onco A for future applications of the MO-20 as a new magnetic drug release nanosystem for cancer treatment.
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Affiliation(s)
- Antônio C. H. Barreto
- Advanced Materials Chemistry Group (GQMAT), Analytical and Physical-Chemistry Department, Federal University of Ceará (UFC), Campus do Pici 12100, CEP 60451-970 Fortaleza-CE, Brazil; E-Mails: (A.C.H.B.); (V.R.S.); (R.M.F.)
- Products Laboratory and Process Technology (LPT), Department of Organic and Inorganic Chemistry, Federal University of Ceará, Fortaleza-CE 12100, Brazil; E-Mail:
| | - Vivian R. Santiago
- Advanced Materials Chemistry Group (GQMAT), Analytical and Physical-Chemistry Department, Federal University of Ceará (UFC), Campus do Pici 12100, CEP 60451-970 Fortaleza-CE, Brazil; E-Mails: (A.C.H.B.); (V.R.S.); (R.M.F.)
- Products Laboratory and Process Technology (LPT), Department of Organic and Inorganic Chemistry, Federal University of Ceará, Fortaleza-CE 12100, Brazil; E-Mail:
| | - Rafael M. Freire
- Advanced Materials Chemistry Group (GQMAT), Analytical and Physical-Chemistry Department, Federal University of Ceará (UFC), Campus do Pici 12100, CEP 60451-970 Fortaleza-CE, Brazil; E-Mails: (A.C.H.B.); (V.R.S.); (R.M.F.)
| | - Selma E. Mazzetto
- Products Laboratory and Process Technology (LPT), Department of Organic and Inorganic Chemistry, Federal University of Ceará, Fortaleza-CE 12100, Brazil; E-Mail:
| | - Juliano C. Denardin
- Physical Department, Santiago University of Chile (USACH), Av. Ecuador 3493, Santiago 9160000, Chile; E-Mail:
| | - Giuseppe Mele
- Department of Engineering for Innovation, University of Salento, Via Arnesano, Lecce 73100, Italy; E-Mail:
| | - Igor M. Cavalcante
- Laboratory of Polymers and Materials Innovation (LPIM), Department of Organic and Inorganic Chemistry, Federal University of Ceará, Ceará 12100, Brazil; E-Mails: (I.M.C.); (M.E.N.P.R.); (N.M.P.S.R.); (T.L.G.L.); (O.D.L.P)
| | - Maria E. N. P. Ribeiro
- Laboratory of Polymers and Materials Innovation (LPIM), Department of Organic and Inorganic Chemistry, Federal University of Ceará, Ceará 12100, Brazil; E-Mails: (I.M.C.); (M.E.N.P.R.); (N.M.P.S.R.); (T.L.G.L.); (O.D.L.P)
| | - Nágila M. P. S. Ricardo
- Laboratory of Polymers and Materials Innovation (LPIM), Department of Organic and Inorganic Chemistry, Federal University of Ceará, Ceará 12100, Brazil; E-Mails: (I.M.C.); (M.E.N.P.R.); (N.M.P.S.R.); (T.L.G.L.); (O.D.L.P)
| | - Tamara Gonçalves
- Department of Pharmacy, Federal University of Ceará (UFC), Fortaleza-Ceará 12100, Brazil; E-Mail:
| | - Luigi Carbone
- National Nanotechnology Laboratory, Nanoscience Institute-CNR Via Arnesano, Lecce 73100, Italy; E-Mail:
| | - Telma L. G. Lemos
- Laboratory of Polymers and Materials Innovation (LPIM), Department of Organic and Inorganic Chemistry, Federal University of Ceará, Ceará 12100, Brazil; E-Mails: (I.M.C.); (M.E.N.P.R.); (N.M.P.S.R.); (T.L.G.L.); (O.D.L.P)
| | - Otília D. L. Pessoa
- Laboratory of Polymers and Materials Innovation (LPIM), Department of Organic and Inorganic Chemistry, Federal University of Ceará, Ceará 12100, Brazil; E-Mails: (I.M.C.); (M.E.N.P.R.); (N.M.P.S.R.); (T.L.G.L.); (O.D.L.P)
| | - Pierre B. A. Fechine
- Advanced Materials Chemistry Group (GQMAT), Analytical and Physical-Chemistry Department, Federal University of Ceará (UFC), Campus do Pici 12100, CEP 60451-970 Fortaleza-CE, Brazil; E-Mails: (A.C.H.B.); (V.R.S.); (R.M.F.)
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Cortés A, Lavín R, Denardin JC, Marotti RE, Dalchiele EA, Valdivia P, Gómez H. Template assisted electrochemical growth of cobalt nanowires: influence of deposition conditions on structural, optical and magnetic properties. J Nanosci Nanotechnol 2011; 11:3899-3910. [PMID: 21780384 DOI: 10.1166/jnn.2011.3826] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The influence of electrodeposition potential, pH, composition and temperature of the electrolytic bath on the structure of cobalt nanowires arrays electrodeposited into anodic aluminum oxide (AAO) porous membranes is reported. XRD, SEM, and TEM analysis were employed to characterize structural (crystal phase, crystallographic texture, and grain size), and morphological nanowire properties. It was confirmed that at pH 2 the electrodeposition potential has not influence on the preferred crystallographic orientation of the electrochemically grown Co nanowires. At pH 4 the electrodeposition potential controls the growth of cobalt nanowires along some preferential crystallographic planes. The electrolytic pH bath modulates the fcc or hcp phase exhibited by the cobalt nanowires. Single crystalline nanowires with a hcp phase strongly oriented along the (2021) crystallographic plane were obtained at pH 4 and at -1.1 V (vs. Ag/AgCl), a result not previously reported. High electrolytic bath temperatures contributed to improve the single crystalline character of the cobalt nanowires. The presence of chloride anion in the electrolytic bath also influenced on the structural properties of the resulting cobalt nanowires, improving their crystallinity. The optical reflectance of the samples shows a structure in the UV-blue region that can be assigned to the two-dimensional morphology arising in the shape of the almost parallel nanowires. Magnetic measurements showed that different electrodeposition potentials and electrolytic bath pH lead to different magnetic anisotropies on the nanowire array samples.
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Affiliation(s)
- Andrea Cortés
- Departamento de Física, Universidad Técnica Federico Santa María, Casilla 110-V, Valparaíso, Chile
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Cortés A, Riveros G, Palma JL, Denardin JC, Marotti RE, Dalchiele EA, Gómez H. Single-crystal growth of nickel nanowires: influence of deposition conditions on structural and magnetic properties. J Nanosci Nanotechnol 2009; 9:1992-2000. [PMID: 19435071 DOI: 10.1166/jnn.2009.374] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [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
This paper examines the influence of electrodeposition potential, pore size, pH, composition, and temperature of the electrolytic bath on the structure of nickel nanowires arrays electrodeposited into anodic alumina oxide porous membranes. Scanning electron microscopy, X-ray diffraction, and transmission electron microscopy analysis were employed to characterize the structural and morphological properties of the nanowires. Results show that the electrodeposition potential controls the growth of nickel nanowires along some preferential crystallographic planes. At -0.90 V (vs. Ag/AgCl) single crystalline nanowires with a strong (111) orientation were obtained. High temperatures and a moderately acid pH solution contributed to improve the single crystalline character of nanowires. The presence of chloride ions produced polycrystalline nanowires at low temperature and single crystalline nanowires at high temperature. The influence of the electrodeposition potential in their magnetic anisotropies is also reported.
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Affiliation(s)
- Andrea Cortés
- Instituto de Química, Facultad de Ciencias, Pontificia Universidad Católica de Valparaíso, Casilla 4059, Valparaíso, Chile
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Knobel M, Nunes WC, Socolovsky LM, De Biasi E, Vargas JM, Denardin JC. Superparamagnetism and other magnetic features in granular materials: a review on ideal and real systems. J Nanosci Nanotechnol 2008; 8:2836-2857. [PMID: 18681019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
An overview on magnetic of nanostructured magnetic materials is presented, with particular emphasis on the basic features displayed by granular nanomagnetic solids. Besides a review of the basic concepts and experimental techniques, the role of structural disorder (mainly the distribution of grain sizes), interparticle magnetic interactions and surface effects are also discussed with some detail. Recent results, models and trends on the area are also discussed.
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Affiliation(s)
- M Knobel
- Instituto de Física Gleb Wataghin, Universidade Estadual de Campinas CP 6165, 13083-970 Campinas (SP), Brazil
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Escrig J, Lavín R, Palma JL, Denardin JC, Altbir D, Cortés A, Gómez H. Geometry dependence of coercivity in Ni nanowire arrays. Nanotechnology 2008; 19:075713. [PMID: 21817661 DOI: 10.1088/0957-4484/19/7/075713] [Citation(s) in RCA: 16] [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: 05/31/2023]
Abstract
Magnetic properties of arrays of nanowires produced inside the pores of anodic alumina membranes have been studied by means of vibrating sample magnetometer techniques. In these systems the length of the wires strongly influences the coercivity of the array. A simple model for the coercivity as a function of the geometry is presented which exhibits good agreement with experimental results. Magnetostatic interactions between the wires are responsible for a decrease of the coercive field.
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Affiliation(s)
- J Escrig
- Departamento de Física, Universidad de Santiago de Chile, USACH, Avenida Ecuador 3493, 917-0124 Santiago, Chile
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