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Dawoud MHS, Zaafan MA, Saleh SS, Mannaa IM, Sweed NM. Response surface optimization of a cardioprotective compound through pharmacosomal drug delivery system: in vivo bioavailability and cardioprotective activity potential. Drug Deliv Transl Res 2023:10.1007/s13346-023-01315-w. [PMID: 37017879 PMCID: PMC10382421 DOI: 10.1007/s13346-023-01315-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/17/2023] [Indexed: 04/06/2023]
Abstract
Vanillic acid (VA) is a phenolic compound with potential antioxidant activity, which improves ischemia-induced myocardial degeneration, by reducing oxidative stress; however, it suffers poor bioavailability owing to its poor solubility. VA-loaded pharmacosomes were optimized using a central composite design, where the effect of phosphatidylcholine:VA molar ratio and the precursor concentration were studied. An optimized formulation (O1) was prepared and tested for the release rate of VA, in vivo bioavailability, and cardioprotective potential on myocardial infarction-induced rats. The optimized formulation showed a particle size of 229.7 nm, polydispersity index of 0.29, and zeta potential of - 30 mV. O1 showed a sustained drug release for 48 h. The HPLC-UV method was developed for the determination of VA in plasma samples using protein precipitation. The optimized formulation showed a great improvement in the bioavailability as compared to VA. The residence time of the optimized formula was 3 times longer than VA. The optimized formulation showed a more potent cardioprotective effect as compared to VA, via inhibition of the MAPK pathway with subsequent inhibition of PI3k/NF-κB signaling, in addition to its antioxidant effect. The optimized formulation showed normalization of many oxidative stress and inflammatory biomarkers. Thus, a VA-loaded pharmacosome formulation with promising bioavailability and cardioprotective activity potential was prepared.
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Affiliation(s)
- Marwa H S Dawoud
- Department of Pharmaceutics, Faculty of Pharmacy, October University for Modern Sciences and Arts, 6th of October City, Egypt.
| | - Mai A Zaafan
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, October University for Modern Sciences and Arts, 6th of October City, Egypt
| | - Sarah S Saleh
- Department of Analytical Chemistry, Faculty of Pharmacy, October University for Modern Sciences and Arts, 6th of October City, Egypt
| | - Islam M Mannaa
- Department of Pharmaceutics, Faculty of Pharmacy, October University for Modern Sciences and Arts, 6th of October City, Egypt
| | - Nabila M Sweed
- Department of Pharmaceutics, Faculty of Pharmacy, October University for Modern Sciences and Arts, 6th of October City, Egypt
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2
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Study of Cytotoxicity and Internalization of Redox-Responsive Iron Oxide Nanoparticles on PC-3 and 4T1 Cancer Cell Lines. Pharmaceutics 2022; 15:pharmaceutics15010127. [PMID: 36678755 PMCID: PMC9864410 DOI: 10.3390/pharmaceutics15010127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 12/25/2022] [Accepted: 12/26/2022] [Indexed: 01/01/2023] Open
Abstract
Redox-responsive and magnetic nanomaterials are widely used in tumor treatment separately, and while the application of their combined functionalities is perspective, exactly how such synergistic effects can be implemented is still unclear. This report investigates the internalization dynamics of magnetic redox-responsive nanoparticles (MNP-SS) and their cytotoxicity toward PC-3 and 4T1 cell lines. It is shown that MNP-SS synthesized by covalent grafting of polyethylene glycol (PEG) on the magnetic nanoparticle (MNP) surface via SS-bonds lose their colloidal stability and aggregate fully in a solution containing DTT, and partially in conditioned media, whereas the PEGylated MNP (MNP-PEG) without S-S linker control remains stable under the same conditions. Internalized MNP-SS lose the PEG shell more quickly, causing enhanced magnetic core dissolution and thus increased toxicity. This was confirmed by fluorescence microscopy using MNP-SS dual-labeled by Cy3 via labile disulfide, and Cy5 via a rigid linker. The dyes demonstrated a significant difference in fluorescence dynamics and intensity. Additionally, MNP-SS demonstrate quicker cellular uptake compared to MNP-PEG, as confirmed by TEM analysis. The combination of disulfide bonds, leading to faster dissolution of the iron oxide core, and the high-oxidative potential Fe3+ ions can synergically enhance oxidative stress in comparison with more stable coating without SS-bonds in the case of MNP-PEG. It decreases the cancer cell viability, especially for the 4T1, which is known for being sensitive to ferroptosis-triggering factors. In this work, we have shown the effect of redox-responsive grafting of the MNP surface as a key factor affecting MNP-internalization rate and dissolution with the release of iron ions inside cancer cells. This kind of synergistic effect is described for the first time and can be used not only in combination with drug delivery, but also in treatment of tumors responsive to ferroptosis.
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Saddeler S, Hagemann U, Schulz S. Effect of the Size and Shape on the Electrocatalytic Activity of Co3O4 Nanoparticles in the Oxygen Evolution Reaction. Inorg Chem 2020; 59:10013-10024. [DOI: 10.1021/acs.inorgchem.0c01180] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- S. Saddeler
- Faculty of Chemistry, University of Duisburg-Essen and Center for Nanointegration Duisburg-Essen, Universitätsstrasse 5−7, S07 S03 C30, D-45117 Essen, Germany
| | - U. Hagemann
- Interdisciplinary Center for Analytics on the Nanoscale (ICAN), NanoEnergieTechnikZentrum, Carl-Benz-Strasse 199, D-47057 Duisburg, Germany
| | - S. Schulz
- Faculty of Chemistry, University of Duisburg-Essen and Center for Nanointegration Duisburg-Essen, Universitätsstrasse 5−7, S07 S03 C30, D-45117 Essen, Germany
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Iacovita C, Fizeșan I, Pop A, Scorus L, Dudric R, Stiufiuc G, Vedeanu N, Tetean R, Loghin F, Stiufiuc R, Lucaciu CM. In Vitro Intracellular Hyperthermia of Iron Oxide Magnetic Nanoparticles, Synthesized at High Temperature by a Polyol Process. Pharmaceutics 2020; 12:E424. [PMID: 32384665 PMCID: PMC7285148 DOI: 10.3390/pharmaceutics12050424] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 04/29/2020] [Accepted: 05/04/2020] [Indexed: 01/20/2023] Open
Abstract
We report the synthesis of magnetite nanoparticles (IOMNPs) using the polyol method performed at elevated temperature (300 °C) and high pressure. The ferromagnetic polyhedral IOMNPs exhibited high saturation magnetizations at room temperature (83 emu/g) and a maximum specific absorption rate (SAR) of 2400 W/gFe in water. The uniform dispersion of IOMNPs in solid matrix led to a monotonous increase of SAR maximum (3600 W/gFe) as the concentration decreased. Cytotoxicity studies on two cell lines (cancer and normal) using Alamar Blues and Neutral Red assays revealed insignificant toxicity of the IOMNPs on the cells up to a concentration of 1000 μg/mL. The cells internalized the IOMNPs inside lysosomes in a dose-dependent manner, with higher amounts of IOMNPs in cancer cells. Intracellular hyperthermia experiments revealed a significant increase in the macroscopic temperatures of the IOMNPs loaded cell suspensions, which depend on the amount of internalized IOMNPs and the alternating magnetic field amplitude. The cancer cells were found to be more sensitive to the intracellular hyperthermia compared to the normal ones. For both cell lines, cells heated at the same macroscopic temperature presented lower viability at higher amplitudes of the alternating magnetic field, indicating the occurrence of mechanical or nanoscale heating effects.
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Affiliation(s)
- Cristian Iacovita
- Department of Pharmaceutical Physics-Biophysics, Faculty of Pharmacy, “Iuliu Hatieganu” University of Medicine and Pharmacy, Pasteur 6, 400349 Cluj-Napoca, Romania; (C.I.); (L.S.); (N.V.)
| | - Ionel Fizeșan
- Department of Toxicology, Faculty of Pharmacy, “Iuliu Hațieganu” University of Medicine and Pharmacy, Pasteur, 6A, 400349 Cluj-Napoca, Romania; (I.F.); (A.P.); (F.L.)
| | - Anca Pop
- Department of Toxicology, Faculty of Pharmacy, “Iuliu Hațieganu” University of Medicine and Pharmacy, Pasteur, 6A, 400349 Cluj-Napoca, Romania; (I.F.); (A.P.); (F.L.)
| | - Lavinia Scorus
- Department of Pharmaceutical Physics-Biophysics, Faculty of Pharmacy, “Iuliu Hatieganu” University of Medicine and Pharmacy, Pasteur 6, 400349 Cluj-Napoca, Romania; (C.I.); (L.S.); (N.V.)
| | - Roxana Dudric
- Faculty of Physics, “Babes Bolyai” University, Kogalniceanu 1, 400084 Cluj-Napoca, Romania; (R.D.); (G.S.); (R.T.)
| | - Gabriela Stiufiuc
- Faculty of Physics, “Babes Bolyai” University, Kogalniceanu 1, 400084 Cluj-Napoca, Romania; (R.D.); (G.S.); (R.T.)
| | - Nicoleta Vedeanu
- Department of Pharmaceutical Physics-Biophysics, Faculty of Pharmacy, “Iuliu Hatieganu” University of Medicine and Pharmacy, Pasteur 6, 400349 Cluj-Napoca, Romania; (C.I.); (L.S.); (N.V.)
| | - Romulus Tetean
- Faculty of Physics, “Babes Bolyai” University, Kogalniceanu 1, 400084 Cluj-Napoca, Romania; (R.D.); (G.S.); (R.T.)
| | - Felicia Loghin
- Department of Toxicology, Faculty of Pharmacy, “Iuliu Hațieganu” University of Medicine and Pharmacy, Pasteur, 6A, 400349 Cluj-Napoca, Romania; (I.F.); (A.P.); (F.L.)
| | - Rares Stiufiuc
- Department of Pharmaceutical Physics-Biophysics, Faculty of Pharmacy, “Iuliu Hatieganu” University of Medicine and Pharmacy, Pasteur 6, 400349 Cluj-Napoca, Romania; (C.I.); (L.S.); (N.V.)
- Department of Bionanoscopy, MedFuture Research Center for Advanced Medicine, “Iuliu Hatieganu” University of Medicine and Pharmacy, Pasteur 4-6, 400337 Cluj-Napoca, Romania
| | - Constantin Mihai Lucaciu
- Department of Pharmaceutical Physics-Biophysics, Faculty of Pharmacy, “Iuliu Hatieganu” University of Medicine and Pharmacy, Pasteur 6, 400349 Cluj-Napoca, Romania; (C.I.); (L.S.); (N.V.)
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Luque-Michel E, Sebastian V, Larrea A, Marquina C, Blanco-Prieto MJ. Co-encapsulation of superparamagnetic nanoparticles and doxorubicin in PLGA nanocarriers: Development, characterization and in vitro antitumor efficacy in glioma cells. Eur J Pharm Biopharm 2019; 145:65-75. [PMID: 31628997 DOI: 10.1016/j.ejpb.2019.10.004] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Revised: 09/15/2019] [Accepted: 10/16/2019] [Indexed: 12/13/2022]
Abstract
With a very poor prognosis and no clear etiology, glioma is the most aggressive cancer in the brain. Thanks to its versatility, nanomedicine is a promising option to overcome the limitations on chemotherapy imposed by the blood brain barrier (BBB). The objective of this paper was to obtain monitored tumor-targeted therapeutic nanoparticles (NPs). To that end, theranostic surfactant-coated polymer poly-Lactic-co-Glycolic Acid (PLGA) nanoplatform encapsulating doxorubicin hydrochloride (DOX) and superparamagnetic iron oxide NPs (SPIONs) were developed. Different non-ionic surfactants known as BBB crossing enhancers (Tween 80, Brij-35, Pluronic F68 or Vitamin E-TPGS) were used to develop 4 types of theranostic nanoplatforms, which were characterized in terms of size and morphology by DLS, TEM and STEM-HAADF analyses. Moreover, the 3-month stability test, the therapeutic efficacy against different glioma cell lines (U87-MG, 9L/LacZ and patient derived-neuronal stem cells) and the Magnetic Resonance Imaging (MRI) relaxivity were studied. Results showed that the synthesised nanoplatforms were stable at 4 °C after their lyophilization, being that of paramount importance to ensure a long-term stability in a future in vivo application. Furthermore, the theranostic nanoplatforms were efficient in the in vitro treatment of glioma cells, proving to have imaging efficacy as MRI contrast agents. Our results show an efficient loading of drugs and good value of the relaxivity. Therefore, the efficient theranostic hybrid nanoplatform developed here could be used to perform MRI-guided delivery of hydrophobic drugs.
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Affiliation(s)
- Edurne Luque-Michel
- Department of Pharmacy and Pharmaceutical Technology, School of Pharmacy, University of Navarra, C/Irunlarrea 1, E-31008 Pamplona, Spain; Instituto de Investigación Sanitaria de Navarra (IdiSNA), Pamplona, Spain
| | - Víctor Sebastian
- Instituto de Ciencia de Materiales de Aragón (ICMA), CSIC-Universidad de Zaragoza, C/Pedro Cerbuna 12, 50009 Zaragoza, Spain; Institute of Nanoscience of Aragon (INA) and Department of Chemical, Engineering and Environmental Technology, University of Zaragoza, C/Mariano Esquillor, s/n, I+D+I Building, 50018 Zaragoza, Spain; CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Centro de Investigación Biomédica en Red, C/ Monforte de Lemos 3-5, Pabellón 11, 28029 Madrid, Spain.
| | - Ane Larrea
- Institute of Nanoscience of Aragon (INA) and Department of Chemical, Engineering and Environmental Technology, University of Zaragoza, C/Mariano Esquillor, s/n, I+D+I Building, 50018 Zaragoza, Spain
| | - Clara Marquina
- Instituto de Ciencia de Materiales de Aragón (ICMA), CSIC-Universidad de Zaragoza, C/Pedro Cerbuna 12, 50009 Zaragoza, Spain; Departamento de Física de la Materia Condensada, Universidad de Zaragoza, C/Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - María J Blanco-Prieto
- Department of Pharmacy and Pharmaceutical Technology, School of Pharmacy, University of Navarra, C/Irunlarrea 1, E-31008 Pamplona, Spain; Instituto de Investigación Sanitaria de Navarra (IdiSNA), Pamplona, Spain.
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6
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Guo Y, Zhao D, You J, Pei W, Qu Y, Wang X, Meng Q. Evolution of microstructure and formation mechanism of Nd-Fe-B nanoparticles prepared by low energy consumption chemical method. RSC Adv 2018; 8:38850-38859. [PMID: 35558283 PMCID: PMC9090617 DOI: 10.1039/c8ra08271e] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2018] [Accepted: 11/09/2018] [Indexed: 01/18/2023] Open
Abstract
Nd2Fe14B nanoparticles were successfully prepared by using a low-energy chemical method. The microscopic characteristics and formation mechanisms of the phases were investigated at each stage during the preparation of Nd-Fe-B nanoparticles. The Nd-Fe-B intermediates, Nd-Fe-B oxides and reduced Nd-Fe-B nanoparticles were detected and analyzed by using TEM, STEM, XRD, SEM, VSM and Rietveld calculations. The results showed that the intermediate of Nd-Fe-B consisted of Fe3O4 and Nd and Fe elements surrounded by nitrile organic compounds. The Nd-Fe-B oxide was composed of NdFeO3 (48.619 wt%), NdBO3 (31.480 wt%) and α-Fe (19.901 wt%), which was formed by the reaction among Nd, Fe3O4 and B2O3. NdFeO3 and NdBO3 exhibited a perovskite-like lamellar structure, and the grain size was smaller than that of α-Fe. Nd-Fe-B particles were mainly composed of Nd2Fe14B and α-Fe phases. The small particles of NdFeO3 and NdBO3 and the interstitial position between oxide particles and α-Fe were more favorable for the formation of Nd2Fe14B particles. At the same time, the surface of α-Fe particles can also diffuse to form Nd2Fe14B nanoparticles. The coercivity of Nd-Fe-B particles was 5.79 kOe and the saturation magnetization was 63.135 emu g-1.
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Affiliation(s)
- Yaozu Guo
- School of Materials Science and Engineering, Shenyang University of Technology Shenyang 110870 P. R. China
| | - Dong Zhao
- Key Laboratory for Anisotropy and Texture of Materials, Ministry of Education, Northeastern University Shenyang 110819 P. R. China
| | - Junhua You
- School of Materials Science and Engineering, Shenyang University of Technology Shenyang 110870 P. R. China
| | - Wenli Pei
- Key Laboratory for Anisotropy and Texture of Materials, Ministry of Education, Northeastern University Shenyang 110819 P. R. China
| | - Yingdong Qu
- School of Materials Science and Engineering, Shenyang University of Technology Shenyang 110870 P. R. China
| | - Xiaoyang Wang
- Key Laboratory for Anisotropy and Texture of Materials, Ministry of Education, Northeastern University Shenyang 110819 P. R. China
| | - Qingyu Meng
- School of Materials Science and Engineering, Shenyang University of Technology Shenyang 110870 P. R. China
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7
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Sharifi Dehsari H, Harris RA, Ribeiro AH, Tremel W, Asadi K. Optimizing the Binding Energy of the Surfactant to Iron Oxide Yields Truly Monodisperse Nanoparticles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:6582-6590. [PMID: 29726684 DOI: 10.1021/acs.langmuir.8b01337] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Despite the great progress in the synthesis of iron oxide nanoparticles (NPs) using a thermal decomposition method, the production of NPs with low polydispersity index is still challenging. In a thermal decomposition synthesis, oleic acid (OAC) and oleylamine (OAM) are used as surfactants. The surfactants bind to the growth species, thereby controlling the reaction kinetics and hence playing a critical role in the final size and size distribution of the NPs. Finding an optimum molar ratio between the surfactants oleic OAC/OAM is therefore crucial. A systematic experimental and theoretical study, however, on the role of the surfactant ratio is still missing. Here, we present a detailed experimental study on the role of the surfactant ratio in size distribution. We found an optimum OAC/OAM ratio of 3 at which the synthesis yielded truly monodisperse (polydispersity less than 7%) iron oxide NPs without employing any post synthesis size-selective procedures. We performed molecular dynamics simulations and showed that the binding energy of oleate to the NP is maximized at an OAC/OAM ratio of 3. The optimum OAC/OAM ratio of 3 is allowed for the control of the NP size with nanometer precision by simply changing the reaction heating rate. The optimum OAC/OAM ratio has no influence on the crystallinity and the superparamagnetic behavior of the Fe3O4 NPs and therefore can be adopted for the scaled-up production of size-controlled monodisperse Fe3O4 NPs.
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Affiliation(s)
| | - Richard Anthony Harris
- Department of Physics , University of the Free State , Bloemfontein 9300 , Republic of South Africa
| | | | - Wolfgang Tremel
- Department of Chemistry , Johannes Gutenberg University of Mainz , Mainz 55122 , Germany
| | - Kamal Asadi
- Max Planck Institute for Polymer Research , Ackermannweg 10 , Mainz 55128 , Germany
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Yao ZF, Zheng GH, Dai ZX, Zhang LY. Synthesis of the Dy: SrMoO4
with High Photocatalytic Activity under Visible Light Irradiation. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4412] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Zi-Feng Yao
- Anhui key Laboratory of Information Materials and Devices, School of Physics and Materials Science; Anhui University; Hefei 230039 China
| | - Gan-Hong Zheng
- Anhui key Laboratory of Information Materials and Devices, School of Physics and Materials Science; Anhui University; Hefei 230039 China
| | - Zhen-Xiang Dai
- Anhui key Laboratory of Information Materials and Devices, School of Physics and Materials Science; Anhui University; Hefei 230039 China
| | - Ling-Yun Zhang
- Anhui key Laboratory of Information Materials and Devices, School of Physics and Materials Science; Anhui University; Hefei 230039 China
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Belaïd S, Stanicki D, Vander Elst L, Muller RN, Laurent S. Influence of experimental parameters on iron oxide nanoparticle properties synthesized by thermal decomposition: size and nuclear magnetic resonance studies. NANOTECHNOLOGY 2018; 29:165603. [PMID: 29485102 DOI: 10.1088/1361-6528/aaae59] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
A study of the experimental conditions to synthesize monodisperse iron oxide nanocrystals prepared from the thermal decomposition of iron(III) acetylacetonate was carried out in the presence of surfactants and a reducing agent. The influence of temperature, synthesis time and surfactant amounts on nanoparticle properties is reported. This investigation combines relaxometric characterization and size properties. The relaxometric behavior of the nanomaterials depends on the selected experimental parameters. The synthesis of iron oxide nanoparticles with a high relaxivity and a high saturation magnetization can be obtained with a short reaction time at high temperature. Moreover, the influence of surfactant concentrations determines the optimal value in order to produce iron oxide nanoparticles with a narrow size distribution. The optimized synthesis is rapid, robust and reproductive, and produces nearly monodisperse magnetic nanocrystals.
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Affiliation(s)
- Sarah Belaïd
- Department of General, Organic and Biomedical Chemistry, NMR and Molecular Imaging Laboratory, University of Mons, B-7000 Mons, Belgium
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10
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Fei Y, Iqbal M, Kong SD, Xue Z, McFadden CP, Guillet JL, Doerrer LH, Alp EE, Bi W, Lu Y, Dandamudi CB, Ranganath PJ, Javier KJ, Ahmadian M, Ellison CJ, Johnston KP. Aqueous Superparamagnetic Magnetite Dispersions with Ultrahigh Initial Magnetic Susceptibilities. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:622-629. [PMID: 29262258 DOI: 10.1021/acs.langmuir.7b03702] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Superparamagnetic nanoparticles with a high initial magnetic susceptibility χo are of great interest in a wide variety of chemical, biomedical, electronic, and subsurface energy applications. In order to achieve the theoretically predicted increase in χo with the cube of the magnetic diameter, new synthetic techniques are needed to control the crystal structure, particularly for magnetite nanoparticles larger than 10 nm. Aqueous magnetite dispersions (Fe3O4) with a χo of 3.3 (dimensionless SI units) at 1.9 vol %, over 3- to 5-fold greater than those reported previously, were produced in a one-pot synthesis at 210 °C and ambient pressure via thermal decomposition of Fe(II) acetate in triethylene glycol (TEG). The rapid nucleation and focused growth with an unusually high precursor-to-solvent molar ratio of 1:12 led to primary particles with a volume average diameter of 16 nm and low polydispersity according to TEM. The morphology was a mixture of stoichiometric and substoichiometric magnetite according to X-ray diffraction (XRD) and Mössbauer spectroscopy. The increase in χo with the cube of magnetic diameter as well as a saturation magnetization approaching the theoretical limit may be attributed to the highly crystalline structure and very small nonmagnetic layer (∼1 nm) with disordered spin orientation on the surface.
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Affiliation(s)
- Yunping Fei
- McKetta Department of Chemical Engineering, University of Texas at Austin , Austin, Texas 78712, United States
| | - Muhammad Iqbal
- McKetta Department of Chemical Engineering, University of Texas at Austin , Austin, Texas 78712, United States
| | - Seong D Kong
- McKetta Department of Chemical Engineering, University of Texas at Austin , Austin, Texas 78712, United States
| | - Zheng Xue
- McKetta Department of Chemical Engineering, University of Texas at Austin , Austin, Texas 78712, United States
| | - Charles P McFadden
- McKetta Department of Chemical Engineering, University of Texas at Austin , Austin, Texas 78712, United States
| | - Jesse L Guillet
- Department of Chemistry, Boston University , Boston, Massachusetts 02215, United States
| | - Linda H Doerrer
- Department of Chemistry, Boston University , Boston, Massachusetts 02215, United States
| | - Esen E Alp
- Advanced Photon Source, Argonne National Laboratory , Lemont, Illinois 60439, United States
| | - Wenli Bi
- Advanced Photon Source, Argonne National Laboratory , Lemont, Illinois 60439, United States
| | - Yi Lu
- McKetta Department of Chemical Engineering, University of Texas at Austin , Austin, Texas 78712, United States
| | - Chola B Dandamudi
- McKetta Department of Chemical Engineering, University of Texas at Austin , Austin, Texas 78712, United States
| | - Prashant J Ranganath
- McKetta Department of Chemical Engineering, University of Texas at Austin , Austin, Texas 78712, United States
| | - Kevin J Javier
- McKetta Department of Chemical Engineering, University of Texas at Austin , Austin, Texas 78712, United States
| | - Mohsen Ahmadian
- Advanced Energy Consortium & Bureau of Economic Geology, University of Texas at Austin , Austin, Texas 78758, United States
| | - Christopher J Ellison
- McKetta Department of Chemical Engineering, University of Texas at Austin , Austin, Texas 78712, United States
| | - Keith P Johnston
- McKetta Department of Chemical Engineering, University of Texas at Austin , Austin, Texas 78712, United States
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Miguel-Sancho N, Martinez G, Sebastian V, Malumbres A, Florea I, Arenal R, Ortega-Liebana MC, Hueso JL, Santamaria J. Pumping Metallic Nanoparticles with Spatial Precision within Magnetic Mesoporous Platforms: 3D Characterization and Catalytic Application. ACS APPLIED MATERIALS & INTERFACES 2017; 9:41529-41536. [PMID: 28975781 DOI: 10.1021/acsami.7b11482] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The present work shows an efficient strategy to assemble two types of functional nanoparticles onto mesoporous MCM-41 silica nanospheres with a high degree of spatial precision. In a first stage, magnetite nanoparticles are synthesized with a size larger than the support pores and grafted covalently through a peptide-like bonding onto their external surface. This endowed the silica nanoparticles with a strong superparamagnetic response, while preserving the highly ordered interior space for the encapsulation of other functional guest species. Second, we report the finely controlled pumping of preformed Pt nanoparticles (1.5 nm) within the channels of the magnetic MCM-41 nanospheres to confer an additional catalytic functionality to the multiassembled nanoplatform. The penetration depth of the metallic nanoparticles can be explained as a result of the interplay between the particle-wall electrostatic attraction and the repulsive forces between neighboring Pt nanoparticles. A detailed transmission electron microscopy and a 3D high-resolution high-angle annular dark-field detector electron tomography study were carried out to characterize the material and to explain the assembly mechanism. Finally, the performance of these multifunctional nanohybrids as magnetically recoverable catalysts has been evaluated in the selective hydrogenation of p-nitrophenol, a well-known pollutant and intermediate in multiple industrial processes.
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Affiliation(s)
- Nuria Miguel-Sancho
- Department of Chemical and Environmental Engineering and Institute of Nanoscience of Aragon (INA), University of Zaragoza , 50018 Zaragoza, Spain
| | - Gema Martinez
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN , 28029 Madrid, Spain
- Department of Chemical and Environmental Engineering and Institute of Nanoscience of Aragon (INA), University of Zaragoza , 50018 Zaragoza, Spain
| | - Victor Sebastian
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN , 28029 Madrid, Spain
| | - Ana Malumbres
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN , 28029 Madrid, Spain
- Department of Chemical and Environmental Engineering and Institute of Nanoscience of Aragon (INA), University of Zaragoza , 50018 Zaragoza, Spain
| | - Ileana Florea
- Laboratoire de Physique des Interfaces et des Couches Minces-LPICM École Polytechnique/CNRS , Route de Saclay, 91128 Palaiseau Cedex, France
| | - Raul Arenal
- Advanced Microscopy Laboratory (LMA), Nanoscience Institute of Aragon (INA), Universidad de Zaragoza , 50018 Zaragoza, Spain
- Araid Foundation , 50018 Zaragoza, Spain
| | - M Carmen Ortega-Liebana
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN , 28029 Madrid, Spain
- Department of Chemical and Environmental Engineering and Institute of Nanoscience of Aragon (INA), University of Zaragoza , 50018 Zaragoza, Spain
| | - Jose L Hueso
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN , 28029 Madrid, Spain
- Department of Chemical and Environmental Engineering and Institute of Nanoscience of Aragon (INA), University of Zaragoza , 50018 Zaragoza, Spain
| | - Jesus Santamaria
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN , 28029 Madrid, Spain
- Department of Chemical and Environmental Engineering and Institute of Nanoscience of Aragon (INA), University of Zaragoza , 50018 Zaragoza, Spain
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12
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Sharifi Dehsari H, Halda Ribeiro A, Ersöz B, Tremel W, Jakob G, Asadi K. Effect of precursor concentration on size evolution of iron oxide nanoparticles. CrystEngComm 2017. [DOI: 10.1039/c7ce01406f] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Changing the precursor concentration to tune the iron-oxide nanoparticle size alters the surfactant/precursor ratio and leads to the observation of two size regimes.
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Affiliation(s)
| | | | - Bora Ersöz
- Max Planck Institute for Polymer Research
- Mainz
- Germany
| | - Wolfgang Tremel
- Institute of Inorganic Chemistry and Analytical Chemistry
- Johannes Gutenberg University, Mainz
- Mainz
- Germany
| | - Gerhard Jakob
- Institute of Physics
- Johannes Gutenberg-University Mainz
- Mainz
- Germany
| | - Kamal Asadi
- Max Planck Institute for Polymer Research
- Mainz
- Germany
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13
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Hachani R, Lowdell M, Birchall M, Hervault A, Mertz D, Begin-Colin S, Thanh NTK. Polyol synthesis, functionalisation, and biocompatibility studies of superparamagnetic iron oxide nanoparticles as potential MRI contrast agents. NANOSCALE 2016; 8:3278-3287. [PMID: 26460932 DOI: 10.1039/c5nr03867g] [Citation(s) in RCA: 86] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Iron oxide nanoparticles (IONPs) of low polydispersity were obtained through a simple polyol synthesis in high pressure and high temperature conditions. The control of the size and morphology of the nanoparticles was studied by varying the solvent used, the amount of iron precursor and the reaction time. Compared with conventional synthesis methods such as thermal decomposition or co-precipitation, this process yields nanoparticles with a narrow particle size distribution in a simple, reproducible and cost effective manner without the need for an inert atmosphere. For example, IONPs with a diameter of ca. 8 nm could be made in a reproducible manner and with good crystallinity as evidenced by X-ray diffraction analysis and high saturation magnetization value (84.5 emu g(-1)). The surface of the IONPs could be tailored post synthesis with two different ligands which provided functionality and stability in water and phosphate buffer saline (PBS). Their potential as a magnetic resonance imaging (MRI) contrast agent was confirmed as they exhibited high r1 and r2 relaxivities of 7.95 mM(-1) s(-1) and 185.58 mM(-1) s(-1) respectively at 1.4 T. Biocompatibility and viability of IONPs in primary human mesenchymal stem cells (hMSCs) was studied and confirmed.
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Affiliation(s)
- Roxanne Hachani
- Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, UK
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14
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Gebreyohannes AY, Bilad MR, Verbiest T, Courtin CM, Dornez E, Giorno L, Curcio E, Vankelecom IF. Nanoscale tuning of enzyme localization for enhanced reactor performance in a novel magnetic-responsive biocatalytic membrane reactor. J Memb Sci 2015. [DOI: 10.1016/j.memsci.2015.03.069] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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15
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Matsumoto T, Takahashi K, Kitagishi K, Shinoda K, Cuya Huaman JL, Piquemal JY, Jeyadevan B. Dissolution and reduction of cobalt ions in the polyol process using ethylene glycol: identification of the active species and its role. NEW J CHEM 2015. [DOI: 10.1039/c5nj00669d] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The monoanionic state of ethylene glycol was theoretically and experimentally confirmed to be the active species during reduction reaction of metal salts.
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Affiliation(s)
- Takatoshi Matsumoto
- Institute of Multidisciplinary Research for Advanced Materials
- Tohoku University
- Sendai
- Japan
| | - Kazuma Takahashi
- Department of Material Science
- The University of Shiga Prefecture
- Hikone 522-8533
- Japan
| | - Keisuke Kitagishi
- Department of Material Science
- The University of Shiga Prefecture
- Hikone 522-8533
- Japan
| | - Kozo Shinoda
- Institute of Multidisciplinary Research for Advanced Materials
- Tohoku University
- Sendai
- Japan
| | - Jhon L. Cuya Huaman
- Department of Material Science
- The University of Shiga Prefecture
- Hikone 522-8533
- Japan
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16
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Controlled synthesis and characterization of iron oxide micro-particles for Fe-air battery electrode material. Colloid Polym Sci 2014. [DOI: 10.1007/s00396-014-3363-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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17
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Gilliland SE, Carpenter EE, Shultz MD. Modified Seed Growth of Iron Oxide Nanoparticles in Benzyl Alcohol - Optimization for Heating and Broad Stability in Biomedical Applications. Nanobiomedicine (Rij) 2014; 1:9. [PMID: 30023020 PMCID: PMC6029237 DOI: 10.5772/60035] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2014] [Accepted: 11/26/2014] [Indexed: 12/04/2022] Open
Abstract
Iron oxide nanoparticles have received sustained interest for biomedical applications as synthetic approaches are continually developed for control of nanoparticle properties. However, many approaches focus solely on the material, rather than the complete optimization of synthesis and functionalization together to enhance translation into biological systems. Presented herein is a modified seed growth method designed for obtaining optimal nanoparticle properties and ease of surface functionalization for long term stability. With a one or two addition process, iron oxide nanoparticles were produced in crystallite sizes ranging from 5–15 nm using only benzyl alcohol and an iron precursor. In the functionalization process, concentration variations were required for stabilizing different nanoparticle sizes. Radio frequency induction heating experiments of various crystallite and hydrodynamic sizes verified that the heating efficiency greatly increased while approaching the 15 nm crystallite, and suggested an important role of the overall particle size on heating efficiency. Initial in vitro experiments with the functionalized nanoparticles showed success in providing hyperthermia-induced tumour cell killing without an increase in the temperature of the cell suspension medium. This demonstrates the potential for nanoparticle-based hyperthermia to provide a therapeutic effect while limiting normal tissue damage.
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Affiliation(s)
- Stanley E Gilliland
- Research and Development, Hunter Holmes McGuire VA Medical Center, Richmond, USA.,Department of Chemistry and Nanomaterials Core Characterization Facility, Virginia Commonwealth University, Richmond, USA
| | - Everett E Carpenter
- Department of Chemistry and Nanomaterials Core Characterization Facility, Virginia Commonwealth University, Richmond, USA
| | - Michael D Shultz
- Research and Development, Hunter Holmes McGuire VA Medical Center, Richmond, USA
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18
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Martínez G, Malumbres A, Mallada R, Hueso JL, Irusta S, Bomatí-Miguel O, Santamaría J. Use of a polyol liquid collection medium to obtain ultrasmall magnetic nanoparticles by laser pyrolysis. NANOTECHNOLOGY 2012; 23:425605. [PMID: 23037862 DOI: 10.1088/0957-4484/23/42/425605] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
The present work addresses the main bottleneck in the synthesis of magnetic nanoparticles by laser pyrolysis. Since the introduction of laser pyrolysis for the production of nanoparticles nearly three decades ago, this method has been repeatedly presented as a highly promising alternative, on account of two main characteristics: (i) its flexibility, since nanoparticles can be formed from a wide variety of precursors in both gas and liquid phase, and (ii) its continuous nature, avoiding the intrinsic variability of batch processing. However, the results reported to date invariably show considerable aggregation of the obtained nanoparticles, which strongly limits their application in most fields. In this work, we have been able to circumvent this problem by collecting the particles in a polyol liquid medium. This method prevents the formation of aggregates and renders a uniform distribution of well dispersed ultrasmall nanoparticles (<4 nm) in a water-compatible solvent. We consider that the effectiveness of this novel collection method for the production of well-dispersed magnetic nanoparticles will be of high interest to a wide range of scientists working in the nanoparticle synthesis field and may enable new applications wherever there is a strict requirement for non-agglomerated nanoparticles.
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Affiliation(s)
- G Martínez
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, 50018-Zaragoza, Spain.
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