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Tryfon P, Sperdouli I, Adamakis IDS, Mourdikoudis S, Moustakas M, Dendrinou-Samara C. Impact of Coated Zinc Oxide Nanoparticles on Photosystem II of Tomato Plants. MATERIALS (BASEL, SWITZERLAND) 2023; 16:5846. [PMID: 37687539 PMCID: PMC10488754 DOI: 10.3390/ma16175846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Revised: 08/21/2023] [Accepted: 08/23/2023] [Indexed: 09/10/2023]
Abstract
Zinc oxide nanoparticles (ZnO NPs) have emerged as a prominent tool in agriculture. Since photosynthetic function is a significant measurement of phytotoxicity and an assessment tool prior to large-scale agricultural applications, the impact of engineered irregular-shaped ZnO NPs coated with oleylamine (ZnO@OAm NPs) were tested. The ZnO@OAm NPs (crystalline size 19 nm) were solvothermally prepared in the sole presence of oleylamine (OAm) and evaluated on tomato (Lycopersicon esculentum Mill.) photosystem II (PSII) photochemistry. Foliar-sprayed 15 mg L-1 ZnO@OAm NPs on tomato leaflets increased chlorophyll content that initiated a higher amount of light energy capture, which resulted in about a 20% increased electron transport rate (ETR) and a quantum yield of PSII photochemistry (ΦPSII) at the growth light (GL, 600 μmol photons m-2 s-1). However, the ZnO@OAm NPs caused a malfunction in the oxygen-evolving complex (OEC) of PSII, which resulted in photoinhibition and increased ROS accumulation. The ROS accumulation was due to the decreased photoprotective mechanism of non-photochemical quenching (NPQ) and to the donor-side photoinhibition. Despite ROS accumulation, ZnO@OAm NPs decreased the excess excitation energy of the PSII, indicating improved PSII efficiency. Therefore, synthesized ZnO@OAm NPs can potentially be used as photosynthetic biostimulants for enhancing crop yields after being tested on other plant species.
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Affiliation(s)
- Panagiota Tryfon
- Laboratory of Inorganic Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
| | - Ilektra Sperdouli
- Institute of Plant Breeding and Genetic Resources, Hellenic Agricultural Organization-Dimitra, 57001 Thessaloniki, Greece;
| | | | - Stefanos Mourdikoudis
- Biophysics Group, Department of Physics and Astronomy, University College London, London WC1E 6BT, UK;
- UCL Healthcare Biomagnetics and Nanomaterials Laboratories, 21 Albemarle Street, London W1S 4BS, UK
| | - Michael Moustakas
- Department of Botany, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Catherine Dendrinou-Samara
- Laboratory of Inorganic Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
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Shirzad Choubari M, Rahmani S, Mazloom J. Boosted electrochemical performance of magnetic caterpillar-like Mg 0.5Ni 0.5Fe 2O 4 nanospinels as a novel pseudocapacitive electrode material. Sci Rep 2023; 13:7822. [PMID: 37188956 DOI: 10.1038/s41598-023-35014-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Accepted: 05/11/2023] [Indexed: 05/17/2023] Open
Abstract
Ni-incorporated MgFe2O4 (Mg0.5Ni0.5Fe2O4) porous nanofibers were synthesized using the sol-gel electrospinning method. The optical bandgap, magnetic parameters, and electrochemical capacitive behaviors of the prepared sample were compared with pristine electrospun MgFe2O4 and NiFe2O4 based on structural and morphological properties. XRD analysis affirmed the cubic spinel structure of samples and their crystallite size is evaluated to be less than 25 nm using the Williamson-Hall equation. FESEM images demonstrated interesting nanobelts, nanotubes, and caterpillar-like fibers for electrospun MgFe2O4, NiFe2O4, and Mg0.5Ni0.5Fe2O4, respectively. Diffuse reflectance spectroscopy revealed that Mg0.5Ni0.5Fe2O4 porous nanofibers possess the band gap (1.85 eV) between the calculated value for MgFe2O4 nanobelts and NiFe2O4 nanotubes due to alloying effects. The VSM analysis revealed that the saturation magnetization and coercivity of MgFe2O4 nanobelts were enhanced by Ni2+ incorporation. The electrochemical properties of samples coated on nickel foam (NF) were tested by CV, GCD, and EIS analysis in a 3 M KOH electrolyte. The Mg0.5Ni0.5Fe2O4@Ni electrode disclosed the highest specific capacitance of 647 F g-1 at 1 A g-1 owing to the synergistic effects of multiple valence states, exceptional porous morphology, and lowest charge transfer resistance. The Mg0.5Ni0.5Fe2O4 porous fibers showed superior capacitance retention of 91% after 3000 cycles at 10 A g-1 and notable Coulombic efficiency of 97%. Moreover, the Mg0.5Ni0.5Fe2O4//Activated carbon asymmetric supercapacitor divulged a good energy density of 83 W h Kg-1 at a power density of 700 W Kg-1.
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Affiliation(s)
- Matin Shirzad Choubari
- Department of Physics, Faculty of Science, University of Guilan, Namjoo Avenue, P.O. Box 4193833697, Rasht, Iran
| | - Soghra Rahmani
- Department of Physics, Faculty of Science, University of Guilan, Namjoo Avenue, P.O. Box 4193833697, Rasht, Iran
| | - Jamal Mazloom
- Department of Physics, Faculty of Science, University of Guilan, Namjoo Avenue, P.O. Box 4193833697, Rasht, Iran.
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Duraisamy K, Gangadharan A, Martirosyan KS, Sahu NK, Manogaran P, Easwaradas Kreedapathy G. Fabrication of Multifunctional Drug Loaded Magnetic Phase Supported Calcium Phosphate Nanoparticle for Local Hyperthermia Combined Drug Delivery and Antibacterial Activity. ACS APPLIED BIO MATERIALS 2023; 6:104-116. [PMID: 36511628 DOI: 10.1021/acsabm.2c00768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Magnetic calcium phosphate nanoparticles are biocompatible and have attracted much attention as biomaterials for bone tissue engineering and theranostic applications. In this study, we report the fabrication of a biocompatible magnetic nickel ferrite supported fluorapatite nanoparticle as a bone substitute material with hyperthermia potential using a facile wet precipitation approach. The composition and magnetic properties of the sample were analyzed using X-ray diffraction (XRD) and a vibrating sample magnetometer (VSM). The presence of both magnetic (NiFe2O4 and γ-Fe2O3) and fluorapatite phases was identified, and the sample exhibited ferromagnetic behavior with saturation magnetization and coercivity of 3.08 emu/g and 109 Oe, respectively. The fabricated sample achieved the hyperthermia temperature of ∼43 °C under tumor mimic conditions (neglecting Brownian relaxation) in 2.67 min, and the specific loss power (SLP) was estimated to be 898 W/g(Ni+Fe) which is sufficient to prompt irreversible cell apoptosis. Biocompatibility of the synthesized nanoparticle was assessed using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide tetrazolium (MTT) assay with fibroblast NIH 3T3 and L929 cells. An in vitro drug release experiment was conducted at pH 5 (tumor mimic) and 7.4 (physiological), which revealed a release of 49.8% in the former and 11.6% in the latter pH for 11 days. The prepared sample showed antibacterial activity against S. aureus.
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Affiliation(s)
| | - Ajithkumar Gangadharan
- Department of Physics and Astronomy, The University of Texas at San Antonio, San Antonio, Texas78249-1644, United States
| | - Karen S Martirosyan
- Department of Physics and Astronomy, University of Texas at Rio Grande Valley, Brownsville, Texas78520, United States
| | - Niroj Kumar Sahu
- Centre for Nanotechnology Research, Vellore Institute of Technology, Vellore, Tamil Nadu632014, India
| | - Prasath Manogaran
- Department of Biotechnology, Bharathiar University, Coimbatore, Tamil Nadu641 046, India
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Asgarian SM, Kargar Z, Hasaripour S. Positron annihilation and magnetic studies of gamma irradiated nickel ferrite nanoparticles sintered at various temperature. Appl Radiat Isot 2022; 189:110453. [PMID: 36122546 DOI: 10.1016/j.apradiso.2022.110453] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 06/03/2022] [Accepted: 09/06/2022] [Indexed: 11/17/2022]
Abstract
The effects of gamma irradiation on structure and magnetic properties of nickel ferrite nanoparticles, prepared by the sol-gel method and sintered at 300, 500 and 900 °C, are studied through X-ray diffraction, positron annihilation lifetime spectroscopy, coincidence Doppler broadening spectroscopy and vibrating sample magnetometer. The prepared samples were irradiated with gamma rays from 60Co, 137Cs and 22Na for 1, 2 and 3 weeks that received 0.47, 0.94 and 1.41 rad dose of radiation. The XRD patterns showed that the prepared and irradiated samples are single phase with cubic spinel structure. The cation distribution, lattice constant, average crystallite size and lattice strain were obtained by the Rietveld refinement of XRD patterns and their variations with irradiation depend on sintering temperature and therefore the particle size. Scanning electron microscopy confirmed formation of nanoparticles. Positron annihilation lifetime and coincidence Doppler broadening measurements showed that for prepared samples with an increase in sintering temperature the size of vacancies increase while their concentrations decrease. It is observed that the effect of gamma radiation on samples depend on sintering temperature or particles size of samples. Also, the type of defects in sample sintered at 300 °C recognized different from samples sintered at 500 and 900 °C. Saturation magnetization and coercivity increased for prepared samples with increase in sintering temperature. The variations of saturation magnetization and coercivity with gamma irradiation for samples sintered at various temperature were different and explained with variation in cation distribution and surrounding environment of vacancies in samples. The measurements showed that samples with more vacancy concentration undergo more cation redistribution due to gamma radiation.
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Affiliation(s)
| | - Zohreh Kargar
- Department of Physics, School of Science, Shiraz University, Shiraz, Iran.
| | - Sajjad Hasaripour
- Department of Physics, School of Science, Shiraz University, Shiraz, Iran
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Ramírez-Morales MA, Goldt AE, Kalachikova PM, Ramirez B. JA, Suzuki M, Zhigach AN, Ben Salah A, Shurygina LI, Shandakov SD, Zatsepin T, Krasnikov DV, Maekawa T, Nikolaev EN, Nasibulin AG. Albumin Stabilized Fe@C Core-Shell Nanoparticles as Candidates for Magnetic Hyperthermia Therapy. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:2869. [PMID: 36014734 PMCID: PMC9414223 DOI: 10.3390/nano12162869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 07/28/2022] [Accepted: 08/18/2022] [Indexed: 06/15/2023]
Abstract
Carbon-encapsulated iron nanoparticles (Fe@C) with a mean diameter of 15 nm have been synthesized using evaporation-condensation flow-levitation method by the direct iron-carbon gas-phase reaction at high temperatures. Further, Fe@C were stabilized with bovine serum albumin (BSA) coating, and their electromagnetic properties were evaluated to test their performance in magnetic hyperthermia therapy (MHT) through a specific absorption rate (SAR). Heat generation was observed at different Fe@C concentrations (1, 2.5, and 5 mg/mL) when applied 331 kHz and 60 kA/m of an alternating magnetic field, resulting in SAR values of 437.64, 129.36, and 50.4 W/g for each concentration, respectively. Having such high SAR values at low concentrations, obtained material is ideal for use in MHT.
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Affiliation(s)
- Maria Antonieta Ramírez-Morales
- Skolkovo Institute of Science and Technology, 3 Nobel Street, 121205 Moscow, Russia
- Hi-QNano s.r.l., Via Barsanti No. 1, 73010 Arnesano, Italy
- Department of Engineering of Innovation, University of Salento, Via per Arnesano km 1, 73100 Lecce, Italy
| | - Anastasia E. Goldt
- Skolkovo Institute of Science and Technology, 3 Nobel Street, 121205 Moscow, Russia
| | - Polina M. Kalachikova
- Skolkovo Institute of Science and Technology, 3 Nobel Street, 121205 Moscow, Russia
- School of Chemical Engineering, Aalto University, Kemistintie 1, 02015 Espoo, Finland
| | - Javier A. Ramirez B.
- Skolkovo Institute of Science and Technology, 3 Nobel Street, 121205 Moscow, Russia
| | - Masashi Suzuki
- Graduate School of Interdisciplinary New Science, Toyo University, Kawagoe 350-8585, Saitama, Japan
- Bio-Nano Electronics Research Center, Toyo University, Kawagoe 350-8585, Saitama, Japan
| | - Alexey N. Zhigach
- V.L. Talrose Institute for Energy Problems of Chemical Physics at Federal Research Center of Chemical Physics, Russian Academy of Sciences, Leninsky Prospect 38 Building 2, 119334 Moscow, Russia
| | - Asma Ben Salah
- Graduate School of Interdisciplinary New Science, Toyo University, Kawagoe 350-8585, Saitama, Japan
- Bio-Nano Electronics Research Center, Toyo University, Kawagoe 350-8585, Saitama, Japan
| | | | | | - Timofei Zatsepin
- Skolkovo Institute of Science and Technology, 3 Nobel Street, 121205 Moscow, Russia
| | - Dmitry V. Krasnikov
- Skolkovo Institute of Science and Technology, 3 Nobel Street, 121205 Moscow, Russia
| | - Toru Maekawa
- Graduate School of Interdisciplinary New Science, Toyo University, Kawagoe 350-8585, Saitama, Japan
- Bio-Nano Electronics Research Center, Toyo University, Kawagoe 350-8585, Saitama, Japan
| | - Evgeny N. Nikolaev
- Skolkovo Institute of Science and Technology, 3 Nobel Street, 121205 Moscow, Russia
| | - Albert G. Nasibulin
- Skolkovo Institute of Science and Technology, 3 Nobel Street, 121205 Moscow, Russia
- School of Chemical Engineering, Aalto University, Kemistintie 1, 02015 Espoo, Finland
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Farkaš B, de Leeuw NH. A Perspective on Modelling Metallic Magnetic Nanoparticles in Biomedicine: From Monometals to Nanoalloys and Ligand-Protected Particles. MATERIALS (BASEL, SWITZERLAND) 2021; 14:3611. [PMID: 34203371 PMCID: PMC8269646 DOI: 10.3390/ma14133611] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 06/17/2021] [Accepted: 06/21/2021] [Indexed: 12/24/2022]
Abstract
The focus of this review is on the physical and magnetic properties that are related to the efficiency of monometallic magnetic nanoparticles used in biomedical applications, such as magnetic resonance imaging (MRI) or magnetic nanoparticle hyperthermia, and how to model these by theoretical methods, where the discussion is based on the example of cobalt nanoparticles. Different simulation systems (cluster, extended slab, and nanoparticle models) are critically appraised for their efficacy in the determination of reactivity, magnetic behaviour, and ligand-induced modifications of relevant properties. Simulations of the effects of nanoscale alloying with other metallic phases are also briefly reviewed.
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Affiliation(s)
- Barbara Farkaš
- School of Chemistry, Cardiff University, Cardiff CF10 3AT, UK;
| | - Nora H. de Leeuw
- School of Chemistry, Cardiff University, Cardiff CF10 3AT, UK;
- School of Chemistry, University of Leeds, Leeds LS2 9JT, UK
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Wang W, He T, Yang X, Liu Y, Wang C, Li J, Xiao A, Zhang K, Shi X, Jin M. General Synthesis of Amorphous PdM (M = Cu, Fe, Co, Ni) Alloy Nanowires for Boosting HCOOH Dehydrogenation. NANO LETTERS 2021; 21:3458-3464. [PMID: 33825464 DOI: 10.1021/acs.nanolett.1c00074] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Noble metal-based nanomaterials with amorphous structures are promising candidates for developing efficient electrocatalysts. However, their synthesis remains a significant challenge, especially under mild conditions. In this paper, we report a general strategy for preparing amorphous PdM nanowires (a-PdM NWs, M = Fe, Co, Ni, and Cu) at low temperatures by exploiting glassy non-noble metal (M) nuclei generated by special ligand adsorption as the amorphization dictator. When evaluated as electrocatalysts toward formic acid oxidation, a-PdCu NWs can deliver the mass and specific activities as high as 2.93 A/mgPd and 5.33 mA/cm2, respectively; these are the highest values for PdCu-based catalysts reported thus far, far surpassing the crystalline-dominant counterparts and commercial Pd/C. Theoretical calculations suggest that the outstanding catalytic performance of a-PdCu NWs arises from the amorphization-induced high surface reactivity, which can efficiently activate the chemically stable C-H bond and thereby significantly facilitate the dissociation of HCOOH.
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Affiliation(s)
- Weicong Wang
- Frontier Institute of Science and Technology and State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Tianou He
- Frontier Institute of Science and Technology and State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Xiaolong Yang
- Institute for Advanced Study, Shenzhen University, Nanhai Avenue 3688, Shenzhen 518060, China
| | - Yaming Liu
- Frontier Institute of Science and Technology and State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Chaoqi Wang
- Frontier Institute of Science and Technology and State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Jiao Li
- Instrumental Analysis Center, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Andong Xiao
- Frontier Institute of Science and Technology and State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Ke Zhang
- Frontier Institute of Science and Technology and State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Xiatong Shi
- Frontier Institute of Science and Technology and State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Mingshang Jin
- Frontier Institute of Science and Technology and State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
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8
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Antonoglou O, Giannousi K, Mourdikoudis S, Dendrinou-Samara C. Magnetic nanoemulsions as candidates for Alzheimer's disease dual imaging theranostics. NANOTECHNOLOGY 2020; 31:465702. [PMID: 32750688 DOI: 10.1088/1361-6528/abac35] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Alzheimer's disease (AD) is the most prevalent cause of dementia linked to the accumulation of amyloid-beta (Aβ) plaques-fibrils that impair cognitive functions. Magnetic nanoparticles (MNPs) are emerging as promising tools for the crusade against AD owning to appropriate biocompatibility and facile functionalization that can lead to theranostic agents. Herein, the fabrication of a multimodal (magnetic resonance imaging (MRI), fluorescence imaging, and drug carrier) magnetic nanoemulsion (MNE) is reported as an AD theranostic candidate. Initially zinc ferrite MNPs of high saturation magnetization (129 emu g-1) were synthesized through a modified microwave-assisted polyol process. Memantine (a registered AD drug) was labeled with fluorescein (Mem-Flu) and encapsulated with the MNPs in sodium dodecyl sulfate micelles to form the MNE. Small hydrodynamic size (107), high encapsulation (77.5%) and loading efficiencies (86.1%) and sufficient transverse relaxivity (48.7 mM-1 s-1) were achieved through the design while sustained release of Mem-Flu was unveiled by in zero-order, first-order, Higuchi and Korsmeyer-Peppas pharmacokinetic models. Moreover, the MNE acquired fluorescence imaging ability of Aβ1-42 peptide monomers and/or plaques-fibrils via the fluorescein labeling of Memantine. A novel inorganic-organic hybrid multimodal AD theranostic candidate is presented.
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Affiliation(s)
- Orestis Antonoglou
- Laboratory of Inorganic Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
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9
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Rajan A, Sahu NK. Review on magnetic nanoparticle-mediated hyperthermia for cancer therapy. JOURNAL OF NANOPARTICLE RESEARCH 2020; 22:319. [PMID: 0 DOI: 10.1007/s11051-020-05045-9] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Accepted: 10/09/2020] [Indexed: 05/27/2023]
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10
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Inductive calorimetric assessment of iron oxide nano-octahedrons for magnetic fluid hyperthermia. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.125210] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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11
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Etemadi H, Plieger PG. Improvements in the Organic-Phase Hydrothermal Synthesis of Monodisperse M x Fe 3-x O 4 (M = Fe, Mg, Zn) Spinel Nanoferrites for Magnetic Fluid Hyperthermia Application. ACS OMEGA 2020; 5:18091-18104. [PMID: 32743183 PMCID: PMC7391372 DOI: 10.1021/acsomega.0c01641] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Accepted: 06/24/2020] [Indexed: 05/15/2023]
Abstract
In the quest for optimal heat dissipaters for magnetic fluid hyperthermia applications, monodisperse M x Fe3-x O4 (M = Fe, Mg, Zn) spinel nanoferrites were successfully synthesized through a modified organic-phase hydrothermal route. The chemical composition effect on the size, crystallinity, saturation magnetization, magnetic anisotropy, and heating potential of prepared nanoferrites were assessed using transmission electron microscopy (TEM), dynamic light scattering, X-ray diffraction (XRD), thermogravimetric analysis (TGA), energy-dispersive X-ray spectroscopy (EDS), atomic absorption spectroscopy (AAS), X-ray photoelectron spectroscopy (XPS), and vibrating sample magnetometer (VSM) techniques. TEM revealed that a particle diameter between 6 and 14 nm could be controlled by varying the surfactant ratio and doping ions. EDS, AAS, XRD, and XPS confirmed the inclusion of Zn and Mg ions in the Fe3O4 structure. Magnetization studies via VSM revealed both the superparamagnetic nature of the nanoferrites and the dependence on substitution of the doped ions to the final magnetization. The broader zero-field cooling curve of Zn-doped Fe3O4 was related to their large size distribution. Finally, a maximum rising temperature (T max) of 66 °C was achieved for an aqueous ferrofluid of nondoped Fe3O4 nanoparticles after magnetic field activation for 12 min.
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12
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Saturation of Specific Absorption Rate for Soft and Hard Spinel Ferrite Nanoparticles Synthesized by Polyol Process. MAGNETOCHEMISTRY 2020. [DOI: 10.3390/magnetochemistry6020023] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Spinel ferrite nanoparticles represent a class of magnetic nanoparticles (MNPs) with enormous potential in magnetic hyperthermia. In this study, we investigated the magnetic and heating properties of spinel soft NiFe2O4, MnFe2O4, and hard CoFe2O4 MNPs of comparable sizes (12–14 nm) synthesized by the polyol method. Similar to the hard ferrite, which predominantly is ferromagnetic at room temperature, the soft ferrite MNPs display a non-negligible coercivity (9–11 kA/m) arising from the strong interparticle interactions. The heating capabilities of ferrite MNPs were evaluated in aqueous media at concentrations between 4 and 1 mg/mL under alternating magnetic fields (AMF) amplitude from 5 to 65 kA/m at a constant frequency of 355 kHz. The hyperthermia data revealed that the SAR values deviate from the quadratic dependence on the AMF amplitude in all three cases in disagreement with the Linear Response Theory. Instead, the SAR values display a sigmoidal dependence on the AMF amplitude, with a maximum heating performance measured for the cobalt ferrites (1780 W/gFe+Co), followed by the manganese ferrites (835 W/gFe+Mn), while the nickel ferrites (540 W/gFe+Ni) present the lowest values of SAR. The heating performances of the ferrites are in agreement with their values of coercivity and saturation magnetization.
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13
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Khalaf MM, Abd El-Lateef HM, Alnajjar AO, Mohamed IMA. A facile chemical synthesis of Cu xNi (1-x)Fe 2O 4 nanoparticles as a nonprecious ferrite material for electrocatalytic oxidation of acetaldehyde. Sci Rep 2020; 10:2761. [PMID: 32066833 PMCID: PMC7026399 DOI: 10.1038/s41598-020-59655-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Accepted: 01/29/2020] [Indexed: 01/30/2023] Open
Abstract
In the present work, Cu-doped nickel ferrite (CuxNi(1-x)Fe2O4) nanoparticles (CuNFNPs) were chemically fabricated by adding citric acid as a capping agent followed by combustion and calcination for acetaldehyde oxidation reaction (AOR) in KOH electrolytes. The as-prepared CuNFNPs were studied in terms of Fourier-transform infrared spectroscopy (FT-IR), Transmission electron microscopy (TEM), Field emission scanning electron microscope (FE-SEM), Energy-dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD) and Brunauer-Emmett-Teller (BET) specific surface area analyses. The morphology of CuNFNPs has sponges-structure containing irregular pores. Additionally, XRD analysis indicated that the prepared CuNFNPs have a cubic-crystals ferrite without the existence of impurities and the crystal size around 20.2 nm. The electrooxidation of acetaldehyde by the presented CuNFNPs was investigated using cyclic voltammetry (CV), chronoamperometry (CA) and electrochemical impedance spectroscopy (EIS) in -OH media. Furthermore, the effects of -OH and acetaldehyde on the electrocatalytic performance were studied with and without Cu-doping in addition to EIS and CA studies which confirm the high-performance of CuNFNPs as an electrocatalyst for AOR.
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Affiliation(s)
- Mai M Khalaf
- Department of Chemistry, College of Science, King Faisal University, P.O. Box 380 Al Hofuf, 31982, Al-Ahsa, Saudi Arabia
- Department of Chemistry, Faculty of Science, Sohag university, Sohag, 82524, Egypt
| | - Hany M Abd El-Lateef
- Department of Chemistry, College of Science, King Faisal University, P.O. Box 380 Al Hofuf, 31982, Al-Ahsa, Saudi Arabia.
- Department of Chemistry, Faculty of Science, Sohag university, Sohag, 82524, Egypt.
| | - Ahmed O Alnajjar
- Department of Chemistry, College of Science, King Faisal University, P.O. Box 380 Al Hofuf, 31982, Al-Ahsa, Saudi Arabia
| | - Ibrahim M A Mohamed
- Department of Chemistry, Faculty of Science, Sohag university, Sohag, 82524, Egypt.
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14
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Shrestha B, Tang L, Romero G. Nanoparticles‐Mediated Combination Therapies for Cancer Treatment. ADVANCED THERAPEUTICS 2019. [DOI: 10.1002/adtp.201900076] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Binita Shrestha
- Department of Biomedical Engineering University of Texas at San Antonio One UTSA Circle San Antonio TX 78249 USA
| | - Liang Tang
- Department of Biomedical Engineering University of Texas at San Antonio One UTSA Circle San Antonio TX 78249 USA
| | - Gabriela Romero
- Department of Chemical Engineering University of Texas at San Antonio One UTSA Circle San Antonio TX 78249 USA
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15
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Yang SC, Chen CY, Wan HY, Huang SY, Yang TI. Electroactive Composites with Block Copolymer-Templated Iron Oxide Nanoparticles for Magnetic Hyperthermia Application. Polymers (Basel) 2019; 11:E1430. [PMID: 31480428 PMCID: PMC6780777 DOI: 10.3390/polym11091430] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2019] [Revised: 08/29/2019] [Accepted: 08/29/2019] [Indexed: 02/01/2023] Open
Abstract
Cancer has been one of the leading causes of human death for centuries. Magnetic hyperthermia is a promising technique to confine and control cancers. However, particles used in magnetic hyperthermia leaking from where the cancers are located could compromise human health. Therefore, we developed electroactive iron oxide/block copolymer composites to tackle the leakage problem. Experimental results show that oleylamine-modified magnetic iron oxide (Fe3O4) particles and electroactive tetraaniline (TA) could be templated in the self-assembled microstructures of sulfonated [styrene-b-(ethylene-ran-butylene)-b-styrene] (S-SEBS) block copolymers. Various amounts of Fe3O4 particles and TA oligomer were incorporated in S-SEBS block copolymer and their electroactive behavior was confirmed by exhibiting two pairs of well-defined anodic and cathodic current peaks in cyclic voltammetry tests. The heating performance of the resultant TA/Fe3O4/polymer composites improved on increasing the added amount of Fe3O4 particles and TA oligomers. Both Fe3O4 and TA can contribute to improved heating performance, but Fe3O4 possesses a greater contribution than TA does. Hence, the main source for increasing the composites' temperature is Neel relaxation loss from Fe3O4 magnetic particles.
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Affiliation(s)
- Shu-Chian Yang
- Department of Chemical Engineering, Chung-Yuan Christian University, Taoyuan 330, Taiwan
| | - Chun-Yu Chen
- Department of Chemical Engineering, Chung-Yuan Christian University, Taoyuan 330, Taiwan
| | - Hung-Yu Wan
- Department of Chemical Engineering, Chung-Yuan Christian University, Taoyuan 330, Taiwan
| | - Szu-Ying Huang
- Department of Chemical Engineering, Chung-Yuan Christian University, Taoyuan 330, Taiwan
| | - Ta-I Yang
- Department of Chemical Engineering, Chung-Yuan Christian University, Taoyuan 330, Taiwan.
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16
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Giannousi K, Antonoglou O, Dendrinou-Samara C. Interplay between Amyloid Fibrillation Delay and Degradation by Magnetic Zinc-Doped Ferrite Nanoparticles. ACS Chem Neurosci 2019; 10:3796-3804. [PMID: 31298846 DOI: 10.1021/acschemneuro.9b00292] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Amyloidosis, the aggregation of naturally soluble proteins into fibrils, is the main pathological hallmark of central nervous system (CNS) disorders, and new therapeutic approaches can be introduced through nanotechnology. Herein, magnetic nanoparticles (MNPs) are proposed to combat amyloidosis and act as CNS theranostic (therapy and diagnosis) candidates through magnetomechanical forces that can be induced under a low-frequency magnetic field. In that vein, a modified one-step microwave-assisted polyol process has been employed to synthesize hybrid organic/inorganic zinc ferrite (ZnxFe3-xO4) MNPs with different levels of zinc doping (0.30 < x < 0.6) derived from the utilized polyol. The lowest doped (x = 0.30) MNPs exhibited high magnetization (127 emu/g), high T2 imaging ability (r2 = 432 mM-1 s-1), and relatively small hydrodynamic size (180 nm), decisive characteristics to further evaluate their CNS theranostic potential. Their effect on the fibrillation/degradation was monitored in two model proteins, insulin and albumin, in the presence/absence of variant external magnetic fields (static, rotating, or alternating) via Thioflavin T (ThT) fluorescence assay and optical fluorescence microscopy. The MNPs were injected either in oligomer solution where significant fibrillation delay was observed, boosted by zinc ionic leaching of MNPs, or in already formed amyloid plaques where up to 86% amyloid degradation was recorded in the presence of magnetic fields, unveiling magnetomechanical antifibrillation properties. The alternating magnetic field (4 Hz) allows the bouncing of the MNPs into the amyloid net driven by the magnetic forces, and thus is featured as the preferred "dancing mode", which strengthens the degrading efficacy of MNPs.
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Affiliation(s)
- Kleoniki Giannousi
- Laboratory of Inorganic Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, Thessaloniki, 54124 Greece
| | - Orestis Antonoglou
- Laboratory of Inorganic Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, Thessaloniki, 54124 Greece
| | - Catherine Dendrinou-Samara
- Laboratory of Inorganic Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, Thessaloniki, 54124 Greece
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17
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Venkateswarlu S, Kumar BN, Prathima B, SubbaRao Y, Jyothi NVV. A novel green synthesis of Fe3O4 magnetic nanorods using Punica Granatum rind extract and its application for removal of Pb(II) from aqueous environment. ARAB J CHEM 2019. [DOI: 10.1016/j.arabjc.2014.09.006] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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18
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Umut E, Coşkun M, Pineider F, Berti D, Güngüneş H. Nickel ferrite nanoparticles for simultaneous use in magnetic resonance imaging and magnetic fluid hyperthermia. J Colloid Interface Sci 2019; 550:199-209. [PMID: 31075674 DOI: 10.1016/j.jcis.2019.04.092] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 04/28/2019] [Accepted: 04/29/2019] [Indexed: 10/26/2022]
Abstract
We demonstrate magnetic resonance imaging (MRI) contrast enhancement and ac-field induced heating abilities of tetramethylammoniumhydroxide (TMAH) coated nickel ferrite (NiFe2O4) nanoparticles and discuss the underlying physical mechanisms. The structural characterization revealed that the NiFe2O4 particles synthesized with a modified co-precipitation method have a very narrow size distribution with a 4.4 nm magnetic core and 15 nm hydrodynamic diameters, with relatively small fraction of agglomerates. The as-prepared particles presented superparamagnetic behavior at room temperature. The in vitro hyperthermia experiments, performed in ac-field conditions under human tolerable limits, showed that the suspensions of the synthesized nanoparticles exhibit a maximum specific absorption rate (SAR) value of 11 W/g. The 1H nuclear magnetic resonance (NMR) relaxometry measurements indicated the suspensions of NiFe2O4 have a transverse-to-longitudinal relaxivity ratio r2/r1 greater than two, as required for superparamagnetic MRI contrast agents. On the basis of the parameters obtained from the magnetic measurements, by comparing the relevant theoretical models with the experimental results, we found that the presence of agglomerates, and particularly the interactions within the agglomerated nanoparticles, caused a significant increase in the hyperthermia and MRI efficiencies. On the other hand, from an applicative point of view, both the MRI contrast enhancement and the heating capabilities allow the simultaneous use of nickelferrites in diagnostic and therapeutic applications as theranostic agents.
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Affiliation(s)
- Evrim Umut
- Dokuz Eylul University,Department of Medical Imaging Techniques, İnciralti, 35340 İzmir, Turkey.
| | - Mustafa Coşkun
- Hacettepe University, Department of Physics Engineering, Beytepe, 06800 Ankara, Turkey
| | - Francesco Pineider
- Department of Chemistry and Industrial Chemistry, Università di Pisa and INSTM, Pisa I-56124, Italy
| | - Debora Berti
- Department of Chemistry "U.Schiff", Università degli Studi di Firenze and CSGI, Sesto Fiorentino I-50019, Italy
| | - Hakan Güngüneş
- Hitit University, Department of Physics, 19040 Çorum, Turkey
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19
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Hemalatha T, Prabu P, Gunadharini DN, Gowthaman MK. Fabrication and characterization of dual acting oleyl chitosan functionalised iron oxide/gold hybrid nanoparticles for MRI and CT imaging. Int J Biol Macromol 2018; 112:250-257. [PMID: 29378272 DOI: 10.1016/j.ijbiomac.2018.01.159] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Revised: 01/10/2018] [Accepted: 01/23/2018] [Indexed: 12/20/2022]
Abstract
Bionanocomposites fabricated using metal nanoparticles serve a wide range of biomedical applications viz., site targeted drug delivery, imaging etc. Theranostics emerge as an important field of science, which focuses on the use of single entity for both disease diagnosis and treatment. The present work aimed at designing a multifunctional nanocomposite comprising of iron/gold hybrid nanoparticles, coated with oleyl chitosan and conjugated with methotrexate. The HR-TEM images revealed the spherical nature of the composite, while it's nontoxic and biocompatible property was proved by the MTT assay in NIH 3T3 cells and hemolysis assay. Though the VSM results exhibited the magnetic property, the MRI phantom images and X-ray contrast images demonstrated the potential of the composite to be used as contrast agent. Thus the prepared nanocomposite possess good cytocompatibility, magnetic property and also high X-ray attenuation, wherein it could serve as a novel platform for both MRI and CT diagnosis, as well as drug conjugation could aid in targeted drug delivery.
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Affiliation(s)
- Thiagarajan Hemalatha
- Department of Biological Materials, CSIR - Central Leather Research Institute, Adyar, Chennai 600020, India
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20
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Xiang B, Ling D, Lou H, Gu H. 3D hierarchical flower-like nickel ferrite/manganese dioxide toward lead (II) removal from aqueous water. JOURNAL OF HAZARDOUS MATERIALS 2017; 325:178-188. [PMID: 27931002 DOI: 10.1016/j.jhazmat.2016.11.011] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Revised: 10/28/2016] [Accepted: 11/02/2016] [Indexed: 06/06/2023]
Abstract
A functionalized magnetic nickel ferrite/manganese dioxide (NiFe2O4/MnO2) with 3D hierarchical flower-like and core-shell structure was synthesized by a facile hydrothermal approach and applied for the removal of Pb(II) ions from aqueous solutions. Batch adsorption experiments were conducted to study the effect of solution pH, initial Pb(II) concentration, and dose of absorbents on the Pb(II) removal by NiFe2O4/MnO2. The NiFe2O4/MnO2 nanocomposites showed the fast Pb(II) adsorption performance with the maximum adsorption capacity of 85.78mgg-1. The adsorption kinetics of Pb(II) onto NiFe2O4/MnO2 obeyed a pseudo-second-order model. The isothermal experimental results indicated that the Langmuir model was fitted better than the Freundlich model, illustrating a monolayer adsorption process for Pb(II) onto NiFe2O4/MnO2. Meanwhile, the NiFe2O4/MnO2 was easily separated from the solution by an external magnet within a short period of time and still exhibited almost 80% removal capacity after six regenerations. The NiFe2O4/MnO2 is expected to be a new promising adsorbent for heavy metal removal.
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Affiliation(s)
- Bo Xiang
- Shanghai Key Lab of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, Shanghai 200092, PR China.
| | - Dong Ling
- Shanghai Key Lab of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, Shanghai 200092, PR China
| | - Han Lou
- Shanghai Key Lab of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, Shanghai 200092, PR China
| | - Hongbo Gu
- Shanghai Key Lab of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, Shanghai 200092, PR China.
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21
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Banerjee A, Blasiak B, Pasquier E, Tomanek B, Trudel S. Synthesis, characterization, and evaluation of PEGylated first-row transition metal ferrite nanoparticles as T2contrast agents for high-field MRI. RSC Adv 2017. [DOI: 10.1039/c7ra05495e] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
PEGylated MFe2O4(M = Mn through Zn) spinel ferrite preparedviaa novel one-pot synthesis were evaluated for high-field (B0= 9.4 T) magnetic resonance imaging.
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Affiliation(s)
- Abhinandan Banerjee
- Department of Chemistry
- Institute for Quantum Science and Technology
- University of Calgary
- Calgary
- Canada
| | - Barbara Blasiak
- Department of Clinical Neurosciences
- University of Calgary
- Calgary
- Canada
- Institute of Nuclear Physics
| | - Eva Pasquier
- Department of Chemistry
- Institute for Quantum Science and Technology
- University of Calgary
- Calgary
- Canada
| | - Boguslaw Tomanek
- Department of Clinical Neurosciences
- University of Calgary
- Calgary
- Canada
- Institute of Nuclear Physics
| | - Simon Trudel
- Department of Chemistry
- Institute for Quantum Science and Technology
- University of Calgary
- Calgary
- Canada
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22
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Iatridi Z, Vamvakidis K, Tsougos I, Vassiou K, Dendrinou-Samara C, Bokias G. Multifunctional Polymeric Platform of Magnetic Ferrite Colloidal Superparticles for Luminescence, Imaging, and Hyperthermia Applications. ACS APPLIED MATERIALS & INTERFACES 2016; 8:35059-35070. [PMID: 27966875 DOI: 10.1021/acsami.6b13161] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Adequately designed multiresponsive water-soluble graft copolymers were used to serve as a multifunctional polymeric platform for the encapsulation and transfer in aqueous media of hydrophobic magnetic nanoparticles (MNPs). The backbone of the graft copolymers was composed of hydrophilic sodium methacrylate units, hydrophobic dodecyl methacrylate units, and luminescent quinoline-based units, while either the homopolymer poly(N-isopropylacrylamide) or a poly(N,N-dimethylacrylamide-co-N-isopropylacrylamide) copolymer was used as thermosensitive pendent side chains. The polymeric platform forms micellar-type assemblies in aqueous solution, and exhibits pH-responsive luminescent properties and a lower critical solution temperature behavior in water. Depending on the design of the side chains, the cloud point temperatures were determined at 38 and 42 °C, close or slightly above body temperature (37 °C). Above the critical micelle concentration (CMC), both graft copolymers can effectively stabilize in aqueous media as magnetic colloidal superparticles (MSPs), oleylamine-coated MnFe2O4 MNPs, as well as 1:1 mixture of oleylamine-coated MnFe2O4 and CoFe2O4 MNPs. When CoFe2O4 particles were mixed with MnFeO4 in equal amounts, the specific loss power increased significantly, while an opposite trend was observed in the magnetic resonance imaging (MRI) studies, probably due to the anisotropy of cobalt. As a consequence, fine-tuning of the chemical structure of the copolymers and the composition of the MSPs can lead to materials that are able to act simultaneously as luminescent, hyperthermia, and contrast MRI agents.
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Affiliation(s)
| | - Kosmas Vamvakidis
- Department of Chemistry, Aristotle University of Thessaloniki , GR-54124 Thessaloniki, Greece
| | - Ioannis Tsougos
- Department of Medical Physics, University Hospital of Larissa, University of Thessaly, Biopolis , GR-41110 Larisa, Greece
| | - Katerina Vassiou
- Department of Radiology, University Hospital of Larissa, University of Thessaly, Biopolis , GR-41110 Larisa, Greece
| | | | - Georgios Bokias
- Department of Chemistry, University of Patras , GR-26504 Patras, Greece
- FORTH/ICE-HT , Stadiou Street, P.O. Box 1414, GR-26504 Rio-Patras, Greece
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23
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Davis K, Cole B, Ghelardini M, Powell BA, Mefford OT. Quantitative Measurement of Ligand Exchange with Small-Molecule Ligands on Iron Oxide Nanoparticles via Radioanalytical Techniques. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:13716-13727. [PMID: 27966977 DOI: 10.1021/acs.langmuir.6b03644] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Ligand exchange on the surface of hydrophobic iron oxide nanoparticles is a common method for controlling surface chemistry for a desired application. Furthermore, ligand exchange with small-molecule ligands may be necessary to obtain particles with a specific size or functionality. Understanding to what extent ligand exchange occurs and what factors affect it is important for the optimization of this critical procedure. However, quantifying the amount of exchange may be difficult because of the limitations of commonly used characterization techniques. Therefore, we utilized a radiotracer technique to track the exchange of a radiolabeled 14C-oleic acid ligand with hydrophilic small-molecule ligands on the surface of iron oxide nanoparticles. Iron oxide nanoparticles functionalized with 14C-oleic acid were modified with small-molecule ligands with terminal functional groups including catechols, phosphonates, sulfonates, thiols, carboxylic acids, and silanes. These moieties were selected because they represent the most commonly used ligands for this procedure. The effectiveness of these molecules was compared using both procedures widely found in the literature and using a standardized procedure. After ligand exchange, the nanoparticles were analyzed using liquid scintillation counting (LSC) and inductively coupled plasma-mass spectrometry. The labeled and unlabeled particles were further characterized by transmission electron microscopy (TEM) and dynamic light scattering (DLS) to determine the particle size, hydrodynamic diameter, and zeta potential. The unlabeled particles were characterized via attenuated total reflectance-Fourier transform infrared spectroscopy (ATR-FTIR) and vibrating sample magnetometry (VSM) to confirm the presence of the small molecules on the particles and verify the magnetic properties, respectively. Radioanalytical determination of 14C-oleic acid was used to calculate the total amount of oleic acid remaining on the surface of the particles after ligand exchange. The results revealed that the ligand-exchange reactions performed using widely cited procedures did not go to completion. Residual oleic acid remained on the particles after these reactions and the reactions using a standardized protocol. A comparison of the ligand-exchange procedures indicated that the binding moiety, multidenticity, reaction time, temperature, and presence of a catalyst impacted the extent of exchange. Quantification of the oleic acid remaining after ligand exchange revealed a binding hierarchy in which catechol-derived anchor groups displace the most oleic acid on the surface of the nanoparticles and the thiol group displaces the least amount of oleic acid. Thorough characterization of ligand exchange is required to develop nanoparticles suitable for their intended application.
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Affiliation(s)
| | - Brian Cole
- Department of Chemistry, Henderson State University , Arkadelphia, Arkansas 71999, United States
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24
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Huang J, Cheng J, Yi J. Impact of silver nanoparticles on marine diatom Skeletonema costatum. J Appl Toxicol 2016; 36:1343-54. [PMID: 27080522 DOI: 10.1002/jat.3325] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2015] [Revised: 02/09/2016] [Accepted: 02/28/2016] [Indexed: 11/09/2022]
Abstract
When silver nanoparticles (AgNPs) are used commercially at a large scale, they infiltrate the environment at a rapid pace. However, the impact of large quantities of AgNPs on aquatic ecosystems is still largely unknown. In aquatic ecosystems, the phytoplanktons have a vital ecological function and, therefore, the potential impact of AgNPs on the microalgae community has elicited substantial concern. Therefore, in this study, the impacts of AgNPs on a marine diatom, the Skeletonema costatum, are investigated, with a focus on their photosynthesis and associated mechanisms. Exposure to AgNPs at a concentration of 0.5 mg l(-1) significantly induces excess intracellular reactive oxygen species (ROS, 122%) and reduces 28% of their cell viability. More importantly, exposure to AgNPs reduces the algal chlorophyll-a content. Scanning electron microscopy (SEM) was conducted, which revealed that AgNPs obstruct the light absorption of algae because they adhere to their surface. The maximum photochemical efficiency of photosystem II (Fv/Fm) demonstrates that exposure to AgNPs significantly inhibits the conversion of light energy into photosynthetic electron transport. Moreover, the genes of the photosystem II reaction center protein (D1) are significantly down-regulated (P < 0.05) upon exposure to 5 mg l(-1) AgNPs. These results suggest that the physical adhesion and effects of shading of AgNPs on algae might affect their light energy delivery system and damage the crucial protein function of PSII. The photosynthesis inhibition effect of AgNPs is largely different from Ag(+) . This study shows that AgNPs at higher concentrations might have serious consequences for the succession of the phytoplankton communities and aquatic ecosystem equilibrium. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Jun Huang
- State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai, 200062, China.,City University of Hong Kong Shenzhen Research Institute, Shenzhen, 518057, China
| | - Jinping Cheng
- State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai, 200062, China.,City University of Hong Kong Shenzhen Research Institute, Shenzhen, 518057, China.,Environmental Science Programs, School of Science, Hong Kong University of Science and Technology, Clear Water bay, Kowloon, Hong Kong, China
| | - Jun Yi
- State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai, 200062, China.,City University of Hong Kong Shenzhen Research Institute, Shenzhen, 518057, China
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25
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Makridis A, Chatzitheodorou I, Topouridou K, Yavropoulou MP, Angelakeris M, Dendrinou-Samara C. A facile microwave synthetic route for ferrite nanoparticles with direct impact in magnetic particle hyperthermia. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 63:663-70. [PMID: 27040263 DOI: 10.1016/j.msec.2016.03.033] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2015] [Revised: 02/15/2016] [Accepted: 03/12/2016] [Indexed: 10/22/2022]
Abstract
The application of ferrite magnetic nanoparticles (MNPs) in medicine finds its rapidly developing emphasis on heating mediators for magnetic hyperthermia, the ever-promising "fourth leg" of cancer treatment. Usage of MNPs depends largely on the preparation processes to select optimal conditions and effective routes to finely tailor MNPs. Microwave heating, instead of conventional heating offers nanocrystals at significantly enhanced rate and yield. In this work, a facile mass-production microwave hydrothermal synthetic approach was used to synthesize stable ferromagnetic manganese and cobalt ferrite nanoparticles with sizes smaller than 14 nm from metal acetylacetonates in the presence of octadecylamine. Prolonging the reaction time from 15 to 60 min, led to ferrites with improved crystallinity while the sizes are slight increased. The high crystallinity magnetic nanoparticles showed exceptional magnetic heating parameters. In vitro application was performed using the human osteosarcoma cell line Saos-2 incubated with manganese ferrite nanoparticles. Hyperthermia applied in a two cycle process, while AC magnetic field remained on until the upper limit of 45 °C was achieved. The comparative results of the AC hyperthermia efficiency of ferrite nanoparticles in combination with the in vitro study coincide with the magnetic features and their tunability may be further exploited for AC magnetic hyperthermia driven applications.
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Affiliation(s)
- A Makridis
- Department of Physics, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - I Chatzitheodorou
- Department of Inorganic Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - K Topouridou
- Laboratory of Clinical and Molecular Endocrinology, AHEPA University Hospital, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - M P Yavropoulou
- Laboratory of Clinical and Molecular Endocrinology, AHEPA University Hospital, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - M Angelakeris
- Department of Physics, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - C Dendrinou-Samara
- Department of Inorganic Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece.
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26
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Guo X, Wang W, Yang Y, Tian Q. Designing a large scale synthesis strategy for high quality magnetite nanocrystals on the basis of a solution behavior regulated formation mechanism. CrystEngComm 2016. [DOI: 10.1039/c6ce01963c] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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27
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Qi M, Zhang K, Li S, Wu J, Pham-Huy C, Diao X, Xiao D, He H. Superparamagnetic Fe3O4 nanoparticles: synthesis by a solvothermal process and functionalization for a magnetic targeted curcumin delivery system. NEW J CHEM 2016. [DOI: 10.1039/c5nj02441b] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Different functionalized Fe3O4 nanoparticles were fabricated for constructing magnetic targeted carriers for curcumin to improve its hydrophilicity and bioavailability.
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Affiliation(s)
- Man Qi
- Department of Analytical Chemistry
- School of Sciences
- China Pharmaceutical University
- Nanjing 210009
- China
| | - Kai Zhang
- Department of Analytical Chemistry
- School of Sciences
- China Pharmaceutical University
- Nanjing 210009
- China
| | - Siqiao Li
- Department of Analytical Chemistry
- School of Sciences
- China Pharmaceutical University
- Nanjing 210009
- China
| | - Jianrong Wu
- Department of Analytical Chemistry
- School of Sciences
- China Pharmaceutical University
- Nanjing 210009
- China
| | | | - Xintong Diao
- Department of Analytical Chemistry
- School of Sciences
- China Pharmaceutical University
- Nanjing 210009
- China
| | - Deli Xiao
- Department of Analytical Chemistry
- School of Sciences
- China Pharmaceutical University
- Nanjing 210009
- China
| | - Hua He
- Department of Analytical Chemistry
- School of Sciences
- China Pharmaceutical University
- Nanjing 210009
- China
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28
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Giannousi K, Menelaou M, Arvanitidis J, Angelakeris M, Pantazaki A, Dendrinou-Samara C. Hetero-nanocomposites of magnetic and antifungal nanoparticles as a platform for magnetomechanical stress induction in Saccharomyces cerevisiae. J Mater Chem B 2015; 3:5341-5351. [PMID: 32262610 DOI: 10.1039/c5tb00734h] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Copper(i) oxide (Cu2O) nanoparticles (NPs) of 30 nm with antifungal properties have been functionalized with 9 nm nickel ferrite (NiFe2O4) magnetic nanoparticles (MNPs) to construct hetero-nanocomposites (NCs) of a submicron hydrodynamic size for magnetomechanical stress induction in the yeast, Saccharomyces cerevisiae. A post-synthetic approach involving the assembly through hydrophobic interactions of the preformed NPs of non-uniform sizes, albeit coated with the same surfactant (oleylamine), is reported. Solvents of different polarity were implemented during the synthetic procedure resulting in NCs of similar composition consisting mainly of MNPs randomly decorated onto the bigger Cu2O NPs. The antifungal properties of the building NPs and the NCs were studied in terms of fungistatic and fungicidal activity, whereas the ionic leaching was found to be negligible, highlighting the nanosize effect. Although S. cerevisiae cells were found to be resistant to individual NiFe2O4 MNPs because of their small size, their sensitivity to NCs significantly increased upon short-time exposure to a rotating low-frequency magnetic field (10 min, 30 Hz, 35 G) and this arises from the collective properties. The magnetomechanical cell stress induction was accompanied by alteration of cellular membrane integrity and programmed cell death signaling.
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Affiliation(s)
- K Giannousi
- Laboratory of Inorganic Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece.
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29
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Vasilakaki M, Binns C, Trohidou KN. Susceptibility losses in heating of magnetic core/shell nanoparticles for hyperthermia: a Monte Carlo study of shape and size effects. NANOSCALE 2015; 7:7753-62. [PMID: 25836990 DOI: 10.1039/c4nr07576e] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Optimizing the heating properties of magnetic nanoparticles is of great importance for hyperthermia applications. Recent experimental results show that core/shell nanoparticles could give an increased specific absorption rate (SAR) compared to the magnetic oxide nanoparticles currently used. We have developed a modified phenomenological model based on the linear Néel-Brown relaxation model to calculate the SAR due to susceptibility losses in complex nanoparticles with ferromagnetic (FM) core/ferrimagnetic (FiM) shell morphology. We use the Monte Carlo (MC) simulation technique with the implementation of the Metropolis algorithm to investigate the effect of size and shape on the magnetisation behaviour of complex ferromagnetic/ferrimagnetic nanoparticles covered by a surfactant layer. The findings of our simulations are used as an input in our modified model for the calculation of the SAR. Our calculations show that for all the sizes and shapes the complex FM/FiM nanoparticles give higher SAR values than the pure ferrimagnetic ones due to their higher core saturation magnetisation. For all sizes the nanoparticles with the truncated cuboctahedral shape give the highest SAR values and the cubic ones the lowest ones. The decrease in the surfactant thickness results in an increase of the SAR values. Our results have the same characteristics as the available experimental data from Fe/Fe3O4 nanoparticles, confirming that the complex nanoparticles with core/shell morphology can optimise the heating properties for hyperthermia.
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Affiliation(s)
- M Vasilakaki
- Institute of Nanoscience & Nanotechnology, NCSR "Demokritos", Aghia Paraskevi, 15310 Athens, Greece.
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30
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Menelaou M, Iatridi Z, Tsougos I, Vasiou K, Dendrinou-Samara C, Bokias G. Magnetic colloidal superparticles of Co, Mn and Ni ferrite featured with comb-type and/or linear amphiphilic polyelectrolytes; NMR and MRI relaxometry. Dalton Trans 2015; 44:10980-90. [DOI: 10.1039/c5dt00372e] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Hydrophobically-modified magnetic superparticles (MSPs) of MFe2O4 NPs were synthesized in the presence of amphiphilic polymers with different architectures and evaluated through NMR and MRI relaxivity measurements.
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Affiliation(s)
- Melita Menelaou
- Department of Chemistry
- Aristotle University of Thessaloniki
- GR-54124 Thessaloniki
- Greece
| | | | - Ioannis Tsougos
- Department of Medical Physics
- University Hospital of Larissa
- University of Thessaly
- GR-41110 Larisa
- Greece
| | - Katerina Vasiou
- Department of Radiology
- University Hospital of Larissa
- University of Thessaly
- GR-41110 Larisa
- Greece
| | | | - Georgios Bokias
- Department of Chemistry
- University of Patras
- GR-26504 Patras
- Greece
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31
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Shan A, Wu X, Lu J, Chen C, Wang R. Phase formations and magnetic properties of single crystal nickel ferrite (NiFe2O4) with different morphologies. CrystEngComm 2015. [DOI: 10.1039/c4ce02139h] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Nickel ferrite nanomaterials with different morphologies, including nano-spheres, nano-rods and nano-octahedrons have been synthesized by a single mild hydrothermal method at 160 °C without any surfactant.
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Affiliation(s)
- Aixian Shan
- Department of Physics
- Beihang University
- Beijing 100191, China
- Department of Physics
- Peking University
| | - Xue Wu
- Department of Physics
- Beihang University
- Beijing 100191, China
| | - Jing Lu
- Department of Physics
- Peking University
- Beijing 100871, China
| | - Chinping Chen
- Department of Physics
- Peking University
- Beijing 100871, China
| | - Rongming Wang
- Department of Physics
- Beihang University
- Beijing 100191, China
- School of Mathematics and Physics
- University of Science and Technology Beijing
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32
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Dey S, Gomes R, Mondal R, Dey SK, Dasgupta P, Poddar A, Reddy VR, Bhaumik A, Kumar S. Stable room temperature magnetic ordering and excellent catalytic activity of mechanically activated high surface area nanosized Ni0.45Zn0.55Fe2O4. RSC Adv 2015. [DOI: 10.1039/c5ra14773e] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Mechanosynthesized nanometric Ni0.45Zn0.55Fe2O4 exhibit stable magnetic ordering at room temperature, excellent catalytic property and memory effect in dc magnetization profile.
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Affiliation(s)
- S. Dey
- Department of Physics
- Jadavpur University
- Kolkata-700 032
- India
| | - R. Gomes
- Department of Materials Science
- Indian Association for the Cultivation of Science
- Kolkata-700 032
- India
| | - R. Mondal
- Department of Physics
- Jadavpur University
- Kolkata-700 032
- India
| | - S. K. Dey
- Department of Physics
- Jadavpur University
- Kolkata-700 032
- India
| | - P. Dasgupta
- Saha Institute of Nuclear Physics
- Kolkata-700064
- India
| | - A. Poddar
- Saha Institute of Nuclear Physics
- Kolkata-700064
- India
| | | | - A. Bhaumik
- Department of Materials Science
- Indian Association for the Cultivation of Science
- Kolkata-700 032
- India
| | - S. Kumar
- Department of Physics
- Jadavpur University
- Kolkata-700 032
- India
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33
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Georgiadou V, Kokotidou C, Le Droumaguet B, Carbonnier B, Choli-Papadopoulou T, Dendrinou-Samara C. Oleylamine as a beneficial agent for the synthesis of CoFe₂O₄ nanoparticles with potential biomedical uses. Dalton Trans 2014; 43:6377-88. [PMID: 24604256 DOI: 10.1039/c3dt53179a] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The multifunctional role of oleylamine (OAm) as a versatile and flexible reagent in synthesis as well as a desired surface ligand for the synthesis of CoFe2O4 nanoparticles (NPs) is described. CoFe2O4 NPs were prepared by a facile, reproducible and scalable solvothermal approach in the presence of pure OAm. By monitoring the volume of OAm, different shapes of NPs, spherical and truncated, were formed. The syntheses led to high yields of monodispersed and considerably small (9-11 nm) CoFe2O4 NPs with enhanced magnetization (M(s) = 84.7-87.5 emu g(-1)). The resulting hydrophobic CoFe2O4 NPs were easily transferred to an aqueous phase through the formation of reverse micelles between the hydrophobic chains of OAm and cetyltrimethylammonium bromide (CTAB) and transverse relaxivities (r2) were measured. The spherical NPs had a greater effect on water proton relaxivity (r2 = 553 mM(-1) s(-1)) at an applied magnetic field of 11.7 T. The NPs became fluorescent probes by exploiting the presence of the double bond of OAm in the middle of the molecule; a thiol-ene "click" reaction with the fluorophore bovine serum albumin (FITC-BSA) was achieved. The labeled/biofunctionalized CoFe2O4 NPs interacted with cancer (HeLa and A549) and non-cancer cell lines (MRC5 and dental MSCS) and cell viability was estimated. A clear difference of toxicity between the cancer and non-cancer cells was observed while low cytotoxicity in living cells was supported. Confocal laser microscopy showed that NPs entered the cell membranes and were firstly localized close to them provoking a membrane expansion and were further accumulated perinuclearly without entering the nuclei.
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Affiliation(s)
- Violetta Georgiadou
- Department of Inorganic Chemistry
- Aristotle University of Thessaloniki
- 54124 Thessaloniki, Greece
| | - Chrysoula Kokotidou
- Department of Biochemistry
- Aristotle University of Thessaloniki
- 54124 Thessaloniki, Greece
| | - Benjamin Le Droumaguet
- Institut de Chimie et des Matériaux
- Paris-Est (ICMPE)-UMR 7182
- 94320 Thiais, France
- Université Paris-Est Créteil Val-de-Marne
- Faculté des Sciences 61
| | - Benjamin Carbonnier
- Institut de Chimie et des Matériaux
- Paris-Est (ICMPE)-UMR 7182
- 94320 Thiais, France
- Université Paris-Est Créteil Val-de-Marne
- Faculté des Sciences 61
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Georgiadou V, Dendrinou-Samara C. Impact of the Presence of Octadecylamine on the Properties of Hydrothermally Prepared CoFe2O4Nanoparticles. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201402323] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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35
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Vamvakidis K, Katsikini M, Sakellari D, Paloura EC, Kalogirou O, Dendrinou-Samara C. Reducing the inversion degree of MnFe2O4 nanoparticles through synthesis to enhance magnetization: evaluation of their 1H NMR relaxation and heating efficiency. Dalton Trans 2014; 43:12754-65. [DOI: 10.1039/c4dt00162a] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
MnFe2O4 nanoparticles of low inversion degree present optimized magnetization with high (T2) relaxation (345.5 s−1 mM−1) and heating efficiency (286 W g−1).
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Affiliation(s)
- K. Vamvakidis
- Department of Chemistry
- Aristotle University of Thessaloniki
- 54124 Thessaloniki, Greece
| | - M. Katsikini
- Department of Physics
- Aristotle University of Thessaloniki
- 54124 Thessaloniki, Greece
| | - D. Sakellari
- Department of Physics
- Aristotle University of Thessaloniki
- 54124 Thessaloniki, Greece
| | - E. C. Paloura
- Department of Physics
- Aristotle University of Thessaloniki
- 54124 Thessaloniki, Greece
| | - O. Kalogirou
- Department of Physics
- Aristotle University of Thessaloniki
- 54124 Thessaloniki, Greece
| | - C. Dendrinou-Samara
- Department of Chemistry
- Aristotle University of Thessaloniki
- 54124 Thessaloniki, Greece
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36
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Iatridi Z, Georgiadou V, Menelaou M, Dendrinou-Samara C, Bokias G. Application of hydrophobically modified water-soluble polymers for the dispersion of hydrophobic magnetic nanoparticles in aqueous media. Dalton Trans 2014; 43:8633-43. [DOI: 10.1039/c4dt00393d] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Oleylamine-coated CoFe2O4 magnetic nanoparticles were successfully encapsulated into hydrophobically modified water-soluble polymers. The resulting hydrophilic nanohybrids exhibit promising r2-relaxivity properties.
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Affiliation(s)
| | - Violetta Georgiadou
- Department of Chemistry
- Aristotle University of Thessaloniki
- GR-54124 Thessaloniki, Greece
| | - Melita Menelaou
- Department of Chemistry
- Aristotle University of Thessaloniki
- GR-54124 Thessaloniki, Greece
| | | | - Georgios Bokias
- Department of Chemistry
- University of Patras
- GR-26504 Patras, Greece
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