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Synthesis, structural and luminescent properties of Mn-doped calcium pyrophosphate (Ca 2P 2O 7) polymorphs. Sci Rep 2022; 12:7116. [PMID: 35504944 PMCID: PMC9065112 DOI: 10.1038/s41598-022-11337-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Accepted: 04/15/2022] [Indexed: 11/29/2022] Open
Abstract
In the present work, three different Mn2+-doped calcium pyrophosphate (CPP, Ca2P2O7) polymorphs were synthesized by wet co-precipitation method followed by annealing at different temperatures. The crystal structure and purity were studied by powder X-ray diffraction (XRD), Fourier-transform infrared (FTIR), solid-state nuclear magnetic resonance (SS-NMR), and electron paramagnetic resonance (EPR) spectroscopies. Scanning electron microscopy (SEM) was used to investigate the morphological features of the synthesized products. Optical properties were investigated using photoluminescence measurements. Excitation spectra, emission spectra, and photoluminescence decay curves of the samples were studied. All Mn-doped polymorphs exhibited a broadband emission ranging from approximately 500 to 730 nm. The emission maximum was host-dependent and centered at around 580, 570, and 595 nm for γ-, β-, and α-CPP, respectively.
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Goldberg MA, Gafurov MR, Murzakhanov FF, Fomin AS, Antonova OS, Khairutdinova DR, Pyataev AV, Makshakova ON, Konovalov AA, Leonov AV, Akhmedova SA, Sviridova IK, Sergeeva NS, Barinov SM, Komlev VS. Mesoporous Iron(III)-Doped Hydroxyapatite Nanopowders Obtained via Iron Oxalate. NANOMATERIALS 2021; 11:nano11030811. [PMID: 33809993 PMCID: PMC8005114 DOI: 10.3390/nano11030811] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 03/15/2021] [Accepted: 03/18/2021] [Indexed: 11/18/2022]
Abstract
Mesoporous hydroxyapatite (HA) and iron(III)-doped HA (Fe-HA) are attractive materials for biomedical, catalytic, and environmental applications. In the present study, the nanopowders of HA and Fe-HA with a specific surface area up to 194.5 m2/g were synthesized by a simple precipitation route using iron oxalate as a source of Fe3+ cations. The influence of Fe3+ amount on the phase composition, powders morphology, Brunauer–Emmett–Teller (BET) specific surface area (S), and pore size distribution were investigated, as well as electron paramagnetic resonance and Mössbauer spectroscopy analysis were performed. According to obtained data, the Fe3+ ions were incorporated in the HA lattice, and also amorphous Fe oxides were formed contributed to the gradual increase in the S and pore volume of the powders. The Density Functional Theory calculations supported these findings and revealed Fe3+ inclusion in the crystalline region with the hybridization among Fe-3d and O-2p orbitals and a partly covalent bond formation, whilst the inclusion of Fe oxides assumed crystallinity damage and rather occurred in amorphous regions of HA nanomaterial. In vitro tests based on the MG-63 cell line demonstrated that the introduction of Fe3+ does not cause cytotoxicity and led to the enhanced cytocompatibility of HA.
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Affiliation(s)
- Margarita A. Goldberg
- A.A. Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, Moscow 119334, Russia; (A.S.F.); (O.S.A.); (D.R.K.); (A.A.K.); (S.M.B.); (V.S.K.)
- Correspondence: or (M.A.G.); (M.R.G.); Tel.: +7-9296516331 (M.A.G.); +7-8432337638 (M.R.G.)
| | - Marat R. Gafurov
- Institute of Physics, Kazan Federal University, 18 Kremlevskaya Str., Kazan 420008, Russia; (F.F.M.); (A.V.P.)
- Correspondence: or (M.A.G.); (M.R.G.); Tel.: +7-9296516331 (M.A.G.); +7-8432337638 (M.R.G.)
| | - Fadis F. Murzakhanov
- Institute of Physics, Kazan Federal University, 18 Kremlevskaya Str., Kazan 420008, Russia; (F.F.M.); (A.V.P.)
| | - Alexander S. Fomin
- A.A. Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, Moscow 119334, Russia; (A.S.F.); (O.S.A.); (D.R.K.); (A.A.K.); (S.M.B.); (V.S.K.)
| | - Olga S. Antonova
- A.A. Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, Moscow 119334, Russia; (A.S.F.); (O.S.A.); (D.R.K.); (A.A.K.); (S.M.B.); (V.S.K.)
| | - Dinara R. Khairutdinova
- A.A. Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, Moscow 119334, Russia; (A.S.F.); (O.S.A.); (D.R.K.); (A.A.K.); (S.M.B.); (V.S.K.)
| | - Andrew V. Pyataev
- Institute of Physics, Kazan Federal University, 18 Kremlevskaya Str., Kazan 420008, Russia; (F.F.M.); (A.V.P.)
| | - Olga N. Makshakova
- FRC Kazan Scientific Center of Russian Academy of Sciences, Kazan Institute of Biochemistry and Biophysics, Kazan 420111, Russia;
| | - Anatoliy A. Konovalov
- A.A. Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, Moscow 119334, Russia; (A.S.F.); (O.S.A.); (D.R.K.); (A.A.K.); (S.M.B.); (V.S.K.)
| | - Alexander V. Leonov
- Department of Chemistry, M.V. Lomonosov Moscow State University, Moscow 119991, Russia;
| | - Suraya A. Akhmedova
- National Medical Research Radiological Center of the Ministry of Health of the Russian Federation, Moscow 125284, Russia; (S.A.A.); (I.K.S.); (N.S.S.)
| | - Irina K. Sviridova
- National Medical Research Radiological Center of the Ministry of Health of the Russian Federation, Moscow 125284, Russia; (S.A.A.); (I.K.S.); (N.S.S.)
| | - Natalia S. Sergeeva
- National Medical Research Radiological Center of the Ministry of Health of the Russian Federation, Moscow 125284, Russia; (S.A.A.); (I.K.S.); (N.S.S.)
| | - Sergey M. Barinov
- A.A. Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, Moscow 119334, Russia; (A.S.F.); (O.S.A.); (D.R.K.); (A.A.K.); (S.M.B.); (V.S.K.)
| | - Vladimir S. Komlev
- A.A. Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, Moscow 119334, Russia; (A.S.F.); (O.S.A.); (D.R.K.); (A.A.K.); (S.M.B.); (V.S.K.)
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Szyszka K, Targońska S, Lewińska A, Watras A, Wiglusz RJ. Quenching of the Eu 3+ Luminescence by Cu 2+ Ions in the Nanosized Hydroxyapatite Designed for Future Bio-Detection. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:464. [PMID: 33670306 PMCID: PMC7918106 DOI: 10.3390/nano11020464] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 02/05/2021] [Accepted: 02/08/2021] [Indexed: 12/12/2022]
Abstract
The hydroxyapatite nanopowders of the Eu3+-doped, Cu2+-doped, and Eu3+/Cu2+-co-doped Ca10(PO4)6(OH)2 were prepared by a microwave-assisted hydrothermal method. The structural and morphological properties of the products were investigated by X-ray powder diffraction (XRD), transmission electron microscopy techniques (TEM), and infrared spectroscopy (FT-IR). The average crystal size and the unit cell parameters were calculated by a Rietveld refinement tool. The absorption, emission excitation, emission, and luminescence decay time were recorded and studied in detail. The 5D0 → 7F2 transition is the most intense transition. The Eu3+ ions occupied two independent crystallographic sites in these materials exhibited in emission spectra: one Ca(1) site with C3 symmetry and one Ca(2) sites with Cs symmetry. The Eu3+ emission is strongly quenched by Cu2+ ions, and the luminescence decay time is much shorter in the case of Eu3+/Cu2+ co-doped materials than in Eu3+-doped materials. The luminescence quenching mechanism as well as the schematic energy level diagram showing the Eu3+ emission quenching mechanism using Cu2+ ions are proposed. The electron paramagnetic resonance (EPR) technique revealed the existence of at least two different coordination environments for copper(II) ion.
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Affiliation(s)
- Katarzyna Szyszka
- Institute of Low Temperature and Structure Research, PAS, Okolna 2, 50-422 Wroclaw, Poland; (S.T.); (A.W.)
| | - Sara Targońska
- Institute of Low Temperature and Structure Research, PAS, Okolna 2, 50-422 Wroclaw, Poland; (S.T.); (A.W.)
| | - Agnieszka Lewińska
- Faculty of Chemistry, University of Wroclaw, Joliot-Curie 14, 50-383 Wroclaw, Poland;
| | - Adam Watras
- Institute of Low Temperature and Structure Research, PAS, Okolna 2, 50-422 Wroclaw, Poland; (S.T.); (A.W.)
| | - Rafal J. Wiglusz
- Institute of Low Temperature and Structure Research, PAS, Okolna 2, 50-422 Wroclaw, Poland; (S.T.); (A.W.)
- International Institute of Translational Medicine, Jesionowa 11 St., 55–124 Malin, Poland
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Gualtieri AF, Andreozzi GB, Tomatis M, Turci F. Iron from a geochemical viewpoint. Understanding toxicity/pathogenicity mechanisms in iron-bearing minerals with a special attention to mineral fibers. Free Radic Biol Med 2019; 133:21-37. [PMID: 30071299 DOI: 10.1016/j.freeradbiomed.2018.07.023] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Revised: 07/17/2018] [Accepted: 07/29/2018] [Indexed: 01/08/2023]
Abstract
Iron and its role as soul of life on Earth is addressed in this review as iron is one of the most abundant elements of our universe, forms the core of our planet and that of telluric (i.e., Earth-like) planets, is a major element of the Earth's crust and is hosted in an endless number of mineral phases, both crystalline and amorphous. To study iron at an atomic level inside the bulk of mineral phases or at its surface, where it is more reactive, both spectroscopy and diffraction experimental methods can be used, taking advantage of nearly the whole spectrum of electromagnetic waves. These methods can be successfully combined to microscopy to simultaneously provide chemical (e.g. iron mapping) and morphological information on mineral particles, and shed light on the interaction of mineral surfaces with organic matter. This review describes the crystal chemistry of iron-bearing minerals of importance for the environment and human health, with special attention to iron in toxic minerals, and the experimental methods used for their study. Special attention is devoted to the Fenton-like chain reaction involving Fe2+ in the formation of highly reactive hydroxyl radicals. The final part of this review deals with release and adsorption of iron in biological fluids, coordinative and oxidative state of iron and in vitro reactivity. To disclose the very mechanisms of carcinogenesis induced by iron-bearing toxic mineral particles, crystal chemistry and surface chemistry are fundamental for a multidisciplinary approach which should involve geo-bio-scientists, toxicologists and medical doctors.
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Affiliation(s)
- Alessandro F Gualtieri
- Department of Chemical and Geological Sciences, The University of Modena and Reggio Emilia, Via Campi 103, I-41125 Modena, Italy.
| | - Giovanni B Andreozzi
- Department of Earth Sciences, Sapienza University of Rome, Piazzale Aldo Moro 5, I-00185 Roma, Italy; CNR-IGAG, U.O. Roma, at Department of Earth Sciences, Sapienza University of Rome, Piazzale A. Moro 5, I-00185 Roma, Italy
| | - Maura Tomatis
- Department of Chemistry, University of Torino, via Pietro Giuria 7, I-10125 Torino, Italy; "G. Sca nsetti" Interdepartmen tal Centre for Studies on Asbestos and Other Toxic Particulates, University of Torino, via Pietro Giuria 9, I-10125 Torino, Italy
| | - Francesco Turci
- Department of Chemistry, University of Torino, via Pietro Giuria 7, I-10125 Torino, Italy; "G. Sca nsetti" Interdepartmen tal Centre for Studies on Asbestos and Other Toxic Particulates, University of Torino, via Pietro Giuria 9, I-10125 Torino, Italy
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Moskal P, Wesełucha-Birczyńska A, Łabanowska M, Kurdziel M, Filek M. 2D FTIR correlation spectroscopy and EPR analysis of Urtica dioica leaves from areas of different environmental pollution. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 189:405-414. [PMID: 28843876 DOI: 10.1016/j.saa.2017.08.044] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Revised: 07/14/2017] [Accepted: 08/13/2017] [Indexed: 06/07/2023]
Abstract
Leaves of Urtica dioica collected from two areas of different environmental pollution were analysed by fourier transform infrared spectroscopy (FTIR) and electron paramagnetic resonance (EPR) spectroscopy. Analysis of FTIR spectra allows to describe main component of plant like proteins, lipids and carbohydrates. Although the FTIR spectra of plants from these two geographical locations of different environmental pollution appear to be relatively similar, 2D correlation shows completely different patterns. Synchronous and asynchronous correlation maps showed sequences of changes occurring during development of plant, manly in Amide I and Amide II, lignin, lipids and cellulose. In addition, 2D analysis revealed another sequence of changes as the function of plant growth depending on the degree of the environmental pollution. Two various kinds of paramagnetic species, transition metal ions (Mn(II), Fe(III)) and stable organic radicals (chlorophyll, semiquinone, tyrosyl and carbon centered) were found in leaves of nettle collected at different stages of development and growing in clean and polluted environment. In plants growing in polluted area the injuries of protein molecules bonding metal ions and the disturbances of photosynthesis and redox equilibrium in cells, as well as instability of polysaccharide structure of cell walls were observed.
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Affiliation(s)
- Paulina Moskal
- Faculty of Chemistry, Jagiellonian University, Kraków, Poland
| | | | | | | | - Maria Filek
- Institute of Biology, Pedagogical University, Podchorążych 2, 30-084 Kraków, Poland; Institute of Plant Physiology, Polish Academy of Sciences, Niezapominajek 21, 30-239 Kraków, Poland
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Zilm M, Thomson SD, Wei M. A Comparative Study of the Sintering Behavior of Pure and Manganese-Substituted Hydroxyapatite. MATERIALS (BASEL, SWITZERLAND) 2015; 8:6419-6436. [PMID: 28793572 PMCID: PMC5512915 DOI: 10.3390/ma8095308] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/12/2015] [Revised: 08/25/2015] [Accepted: 09/14/2015] [Indexed: 12/30/2022]
Abstract
Hydroxyapatite (HA) is a widely studied biomaterial for its similar chemical composition to bone and its osteoconductive properties. The crystal structure of HA is flexible, allowing for a wide range of substitutions which can alter bioactivity, biodegradation, and mechanical properties of the substituted apatite. The thermal stability of a substituted apatite is an indication of its biodegradation in vivo. In this study, we investigated the thermal stability and mechanical properties of manganese-substituted hydroxyapatite (MnHA) as it is reported that manganese can enhance cell attachment compared to pure HA. Pure HA and MnHA pellets were sintered over the following temperature ranges: 900 to 1300 °C and 700 to 1300 °C respectively. The sintered pellets were characterized via density measurements, mechanical testing, X-ray diffraction, and field emission electron microscopy. It was found that MnHA was less stable than HA decomposing around 800 °C compared to 1200 °C for HA. The flexural strength of MnHA was weaker than HA due to the decomposition of MnHA at a significantly lower temperature of 800 °C compared to 1100 °C for HA. The low thermal stability of MnHA suggests that a faster in vivo dissolution rate compared to pure HA is expected.
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Affiliation(s)
- Michael Zilm
- Department of Materials Science and Engineering, University of Connecticut, 97 North Eagleville Rd, Unit 3136, Storrs, CT 06269, USA.
| | - Seamus D Thomson
- Department of Aerospace, Mechanical and Mechatronic Engineering, J07 University of Sydney, University of Sydney, Sydney, NSW 2006, Australia.
| | - Mei Wei
- Department of Materials Science and Engineering, University of Connecticut, 97 North Eagleville Rd, Unit 3136, Storrs, CT 06269, USA.
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Gafurov M, Biktagirov T, Mamin G, Klimashina E, Putlayev V, Kuznetsova L, Orlinskii S. The Interplay of manganese and nitrate in hydroxyapatite nanoparticles as revealed by pulsed EPR and DFT. Phys Chem Chem Phys 2015; 17:20331-7. [PMID: 26190281 DOI: 10.1039/c5cp01986a] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The interplay of oppositely charged substitutions in the structure of hydroxyapatite (HAp) nanopowders is investigated on the atomic level by pulsed electron paramagnetic resonance (EPR) technique and ab initio density functional theory calculations. Benefits of EPR to determine Mn(2+) ions in nano-HAp samples are demonstrated. A simple approach based on the measurements of electron spin relaxation times allowed observing the strong influence of fast-relaxing Mn(2+) ions on the relaxation characteristics of the nitrate ions (NO3(-)/NO3(2-)) incorporated in trace amounts. Based on the results of ab initio calculations, we show the propensity of Mn(2+) and NO3(-)/NO3(2-) to associate within the HAp crystal lattice. This could have a direct impact on the functional properties of the material especially to resorption and ion exchange. Furthermore, such an effect can increase a propensity of undesired impurities to incorporate into the doped nanocrystals.
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Affiliation(s)
- Marat Gafurov
- Kazan Federal University, Institute of Physics, 420008 Kazan, Russian Federation.
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8
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Kurdziel M, Dłubacz A, Wesełucha-Birczyńska A, Filek M, Łabanowska M. Stable radicals and biochemical compounds in embryos and endosperm of wheat grains differentiating sensitive and tolerant genotypes--EPR and Raman studies. JOURNAL OF PLANT PHYSIOLOGY 2015; 183:95-107. [PMID: 26121078 DOI: 10.1016/j.jplph.2015.05.018] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2015] [Revised: 05/04/2015] [Accepted: 05/05/2015] [Indexed: 06/04/2023]
Abstract
The aim of this study was to uncover the specific species in grains that might differentiate the wheat genotypes according to their tolerance to oxidative stress. Measurements by EPR and Raman spectroscopy techniques were used to examine whole grains and their parts (embryo, endosperm, seed coat) originating from four wheat genotypes with differing tolerance to drought stress. Raman spectra showed that, in spite of the similar amounts of proteins in whole grains from tolerant and sensitive genotypes, in tolerant ones they were accumulated mainly in embryos. Moreover, in embryos from these grains, a higher content of unsaturated fatty acids was observed. Endosperm of grains from the tolerant genotype, richer with starch than that of sensitive one, exhibited higher content of amylopectin. Detailed analysis of EPR signals and simulation procedures of the spectra allowed the estimation of the nature of interactions of Fe(III) and Mn(II) with organic and inorganic structures of grains and the character of organic stable radicals. Three types of these radicals: carbohydrate, semiquinone and phenoxyl, were identified. The amounts of these radicals were higher in grains of sensitive genotypes, mostly because of differences in carbohydrate radical content in endosperm. Taking into account the level of radical concentration and greater capacity for radical formation in grains from plants of lower tolerance to stress, the content of radicals, especially of a carbohydrate nature, was considered as a marker of the plant resistance to stress conditions.
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Affiliation(s)
- Magdalena Kurdziel
- Faculty of Chemistry, Jagiellonian University, Ingardena 3, 30-060 Cracow, Poland.
| | - Aleksandra Dłubacz
- Faculty of Chemistry, Jagiellonian University, Ingardena 3, 30-060 Cracow, Poland.
| | | | - Maria Filek
- Department of Biochemistry, Biophysics and Biotechnology, Institute of Biology, Pedagogical University, Podchorążych 2, 30-084 Cracow, Poland; The Franciszek Górski Institute of Plant Physiology, Polish Academy of Sciences, Niezapominajek 21, 30-239 Cracow, Poland.
| | - Maria Łabanowska
- Faculty of Chemistry, Jagiellonian University, Ingardena 3, 30-060 Cracow, Poland.
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Rożnowski J, Fortuna T, Przetaczek-Rożnowska I, Łabanowska M, Bączkowicz M, Kurdziel M, Nowak K. Effect of enriching potato and corn starch with iron ions on selected functional properties. STARCH-STARKE 2014. [DOI: 10.1002/star.201400070] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jacek Rożnowski
- Department of Analysis and Evaluation of Food Quality; University of Agriculture in Krakow; Krakow Poland
| | - Teresa Fortuna
- Department of Analysis and Evaluation of Food Quality; University of Agriculture in Krakow; Krakow Poland
| | | | | | | | | | - Katarzyna Nowak
- Department of Analysis and Evaluation of Food Quality; University of Agriculture in Krakow; Krakow Poland
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10
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The influence of the starch component on thermal radical generation in flours. Carbohydr Polym 2014; 101:846-56. [DOI: 10.1016/j.carbpol.2013.10.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2013] [Revised: 08/20/2013] [Accepted: 10/02/2013] [Indexed: 11/19/2022]
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11
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Pietrzyk S, Fortuna T, Królikowska K, Rogozińska E, Łabanowska M, Kurdziel M. Effect of mineral elements on physicochemical properties of oxidised starches and generation of free radicals. Carbohydr Polym 2013; 97:343-51. [PMID: 23911455 DOI: 10.1016/j.carbpol.2013.04.077] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2012] [Revised: 03/28/2013] [Accepted: 04/24/2013] [Indexed: 10/26/2022]
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12
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Łabanowska M, Kurdziel M, Bidzińska E, Fortuna T, Pietrzyk S, Przetaczek-Rożnowska I, Rożnowski J. Influence of metal ions on thermal generation of carbohydrate radicals in native and modified starch studied by EPR. STARCH-STARKE 2013. [DOI: 10.1002/star.201200165] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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13
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Matković I, Maltar-Strmečki N, Babić-Ivančić V, Dutour Sikirić M, Noethig-Laslo V. Characterisation of β-tricalcium phosphate-based bone substitute materials by electron paramagnetic resonance spectroscopy. Radiat Phys Chem Oxf Engl 1993 2012. [DOI: 10.1016/j.radphyschem.2012.04.012] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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PON-ON WEERAPHAT, MEEJOO SIWAPORN, TANG IMING. INCORPORATION OF IRON INTO NANO HYDROXYAPATITE PARTICLES SYNTHESIZED BY THE MICROWAVE PROCESS. INTERNATIONAL JOURNAL OF NANOSCIENCE 2011. [DOI: 10.1142/s0219581x07004262] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
This research focuses on understanding the nature of the Fe ions substituted in hydroxyapatite ((HAP) Ca 10-x Fe x( PO 4)6( OH )2-xÿx: x = 0, 0.2 and 0.4) powder synthesized at temperatures between 500°C and 1000°C and their crystallization. The DSC scan indicates a solid state phase transition at about 757°C for the as-prepared powder HAP. The transformation of HAP to β-tricalcium phosphate (β- TCP , β- Ca 3( PO 4)2) is seen when the powder were heated to 750°C. The sizes of the crystallites were determined to be about 46–51 nm, 33–40 nm and 33–59 nm for Fe content of 0, 0.2 and 0.4 mol%, respectively. The ESR parameters for the Fe 3+ ions, g = 4.23 and 8.93 indicated that the ions were subjected to a rhombic ion crystal field within the HAP structures. The g values of ~2.01 indicated that the particles were super-paramagnetic and ferromagnetic iron nanoparticles, having an average size about 0.2–0.5 μm in length.
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Affiliation(s)
- WEERAPHAT PON-ON
- Department of Chemistry, Faculty of Science, Mahidol University, Bangkok 10400, Thailand
| | - SIWAPORN MEEJOO
- Department of Chemistry, Faculty of Science, Mahidol University, Bangkok 10400, Thailand
| | - I-MING TANG
- Department of Physics, Faculty of Science, Mahidol University, Bangkok 10400, Thailand
- Institute of Science and Technology for Research and Development, Salaya Campus, Mahidol University, Nakhon Pathom 71730, Thailand
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Chygorin EN, Makhankova VG, Kokozay VN, Dyakonenko VV, Shishkin OV, Jezierska J. Ammonium tris-oxalatoferrate(III) as a source of metalloligand in direct synthesis of Cu/Fe coordination polymer. INORG CHEM COMMUN 2010. [DOI: 10.1016/j.inoche.2010.08.029] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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16
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Turci F, Tomatis M, Lesci IG, Roveri N, Fubini B. The iron-related molecular toxicity mechanism of synthetic asbestos nanofibres: a model study for high-aspect-ratio nanoparticles. Chemistry 2010; 17:350-8. [PMID: 21207631 DOI: 10.1002/chem.201001893] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2010] [Indexed: 12/15/2022]
Abstract
Asbestos shares with carbon nanotubes some morphological and physico-chemical features. An asbestos-like behaviour has been recently reported by some authors, though the mechanism of toxicity may be very different. To identify at the atomic level the source of toxicity in asbestos, the effect of progressive iron loading on a synthetic iron-free model nanofibre previously found non-toxic in cellular tests was studied. A set of five synthetic chrysotile nanofibres [(Mg,Fe)3(Si2O5)(OH)4] has been prepared with Fe ranging from 0 to 1.78 wt %. The relationship between fibre-induced free-radical generation and the physico-chemical characteristics of iron active sites was investigated with spin-trapping techniques on an aqueous suspension of the fibres and Mössbauer and EPR spectroscopies on the solids, respectively. The fully iron-free fibre was inert, whereas radical activity arose with even the smallest amount of iron. Surprisingly, such activity decreased upon increasing iron loading. Mössbauer and EPR revealed isolated iron ions in octahedral sites that undergo both axial and rhombic distortion and the occurrence of aggregated iron ions and/or extra-framework clustering. The isolated ions largely prevailed at the lowest loadings. Upon increasing the loading, the amount of isolated iron was reduced and the aggregation increased. A linear relationship between the formation of carbon-centred radicals and the amount of rhombic-distorted isolated iron sites was found. Even the smallest iron contamination imparts radical reactivity, hence toxicity, to any chrysotile outcrop, thereby discouraging the search for non-toxic chrysotile. The use of model solids that only differ in one property at a time appears to be the most successful approach for a molecular understanding of the physico-chemical determinants of toxicity. Such findings could also be useful in the design of safer nanofibres.
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Affiliation(s)
- Francesco Turci
- Dipartimento di Chimica I.F.M, G. Scansetti Interdepartmental Centre for Studies on Asbestos and Other Toxic Particulates and NIS Centre of Excellence, University of Torino, Via Pietro Giuria, 7, 10152 Torino, Italy
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Wang Z, Ma W, Chen C, Zhao J. Light-assisted decomposition of dyes over iron-bearing soil clays in the presence of H2O2. JOURNAL OF HAZARDOUS MATERIALS 2009; 168:1246-1252. [PMID: 19345009 DOI: 10.1016/j.jhazmat.2009.02.160] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2008] [Revised: 02/25/2009] [Accepted: 02/28/2009] [Indexed: 05/27/2023]
Abstract
Four types of soil clays from different sites in China have been chosen to simulate chemical remediation of soils contaminated with dyes by light-assisted Fenton-like method. X-Ray diffraction (XRD), X-ray photoelectron spectroscopic (XPS) and electron spin resonance (ESR) measurements indicated that these soil clays contain iron oxides such as magnetite and hematite, where nondistorted iron active sites (ESR spectra, g=2.3) predominate. Upon visible or UV irradiation, the soil clays were very effective for the degradation of nonbiodegradable cationic dyes such as Rhodamine B (RhB) by activating H(2)O(2) at neutral pH. The photodegradation rates of RhB were closely related to total Fe content in clays and H(2)O(2) dosage, indicating the mineral-catalyzed Fenton-like reactions operated. Soil organic matters (SOM) would remarkably inhibit the photodecomposition of RhB dye. The reaction products were some low-molecular-weight dicarboxylic acids and their derivatives, all of which are easily biodegradable. A possible mechanism was proposed based on the results obtained by spin-trapping ESR technique.
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Affiliation(s)
- Zhaohui Wang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Photochemistry, Institute of Chemistry, The Chinese Academy of Sciences, Beijing 100190, China
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Low HR, Phonthammachai N, Maignan A, Stewart GA, Bastow TJ, Ma LL, White TJ. The Crystal Chemistry of Ferric Oxyhydroxyapatite. Inorg Chem 2008; 47:11774-82. [DOI: 10.1021/ic801491t] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- H. R. Low
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Laboratoire CRISMAT, UMR CNRS 6508, ENSICAEN, 6 Bd du Marechal Juin, 14050 Caen, Cedex, France, School of Physical, Environmental and Mathematical Sciences, University of New South Wales at the Australian Defence Force Academy, Canberra ACT 2600, Australia, and CSIRO Materials Science and Engineering, Private Bag 33, Clayton South, VIC 3169, Australia
| | - N. Phonthammachai
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Laboratoire CRISMAT, UMR CNRS 6508, ENSICAEN, 6 Bd du Marechal Juin, 14050 Caen, Cedex, France, School of Physical, Environmental and Mathematical Sciences, University of New South Wales at the Australian Defence Force Academy, Canberra ACT 2600, Australia, and CSIRO Materials Science and Engineering, Private Bag 33, Clayton South, VIC 3169, Australia
| | - A. Maignan
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Laboratoire CRISMAT, UMR CNRS 6508, ENSICAEN, 6 Bd du Marechal Juin, 14050 Caen, Cedex, France, School of Physical, Environmental and Mathematical Sciences, University of New South Wales at the Australian Defence Force Academy, Canberra ACT 2600, Australia, and CSIRO Materials Science and Engineering, Private Bag 33, Clayton South, VIC 3169, Australia
| | - G. A. Stewart
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Laboratoire CRISMAT, UMR CNRS 6508, ENSICAEN, 6 Bd du Marechal Juin, 14050 Caen, Cedex, France, School of Physical, Environmental and Mathematical Sciences, University of New South Wales at the Australian Defence Force Academy, Canberra ACT 2600, Australia, and CSIRO Materials Science and Engineering, Private Bag 33, Clayton South, VIC 3169, Australia
| | - T. J. Bastow
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Laboratoire CRISMAT, UMR CNRS 6508, ENSICAEN, 6 Bd du Marechal Juin, 14050 Caen, Cedex, France, School of Physical, Environmental and Mathematical Sciences, University of New South Wales at the Australian Defence Force Academy, Canberra ACT 2600, Australia, and CSIRO Materials Science and Engineering, Private Bag 33, Clayton South, VIC 3169, Australia
| | - L. L. Ma
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Laboratoire CRISMAT, UMR CNRS 6508, ENSICAEN, 6 Bd du Marechal Juin, 14050 Caen, Cedex, France, School of Physical, Environmental and Mathematical Sciences, University of New South Wales at the Australian Defence Force Academy, Canberra ACT 2600, Australia, and CSIRO Materials Science and Engineering, Private Bag 33, Clayton South, VIC 3169, Australia
| | - T. J. White
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Laboratoire CRISMAT, UMR CNRS 6508, ENSICAEN, 6 Bd du Marechal Juin, 14050 Caen, Cedex, France, School of Physical, Environmental and Mathematical Sciences, University of New South Wales at the Australian Defence Force Academy, Canberra ACT 2600, Australia, and CSIRO Materials Science and Engineering, Private Bag 33, Clayton South, VIC 3169, Australia
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Investigation of Raman, FT-IR, EPR spectra and antimicrobial activity of 2-(5-H/Me/Cl-1H-benzimidazol-2-yl)-phenol ligands and their Fe(NO3)3 complexes. TRANSIT METAL CHEM 2007. [DOI: 10.1007/s11243-006-0143-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Rane K, Mhalsiker R, Yin S, Sato T, Cho K, Dunbar E, Biswas P. Visible light-sensitive yellow TiO2−xNx and Fe–N co-doped Ti1−yFeyO2−xNx anatase photocatalysts. J SOLID STATE CHEM 2006. [DOI: 10.1016/j.jssc.2006.05.033] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Decyk P. States of transition metal ions in modified mesoporous MCM-41 and in microporous ZSM-5 studied by ESR spectroscopy. Catal Today 2006. [DOI: 10.1016/j.cattod.2006.01.013] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Sutter B, Hossner LR, Ming DW. Dissolution kinetics of iron-, manganese-, and copper-containing synthetic hydroxyapatites. SOIL SCIENCE SOCIETY OF AMERICA JOURNAL. SOIL SCIENCE SOCIETY OF AMERICA 2005; 69:362-70. [PMID: 16052742 DOI: 10.2136/sssaj2005.0362] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Micronutrient-substituted synthetic hydroxyapatite (SHA) is being evaluated by the National Aeronautics and Space Administration's (NASA) Advanced Life Support (ALS) Program for crop production on long-duration human missions to the International Space Station or for future Lunar or Martian outposts. The stirred-flow technique was utilized to characterize Ca, P, Fe, Mn, and Cu release characteristics from Fe-, Mn-, and Cu-containing SHA in deionized (DI) water, citric acid, and diethylene-triamine-pentaacetic acid (DTPA). Initially, Ca and P release rates decreased rapidly with time and were controlled by a non-SHA calcium phosphate phase(s) with low Ca/P solution molar ratios (0.91-1.51) relative to solid SHA ratios (1.56-1.64). At later times, Ca/P solution molar ratios (1.47-1.79) were near solid SHA ratios and release rates decreased slowly indicating that SHA controlled Ca and P release. Substituted SHA materials had faster dissolution rates relative to unsubstituted SHA. The initial metal release rate order was Mn >> Cu > Fe which followed metal-oxide/phosphate solubility suggesting that poorly crystalline metal-oxides/phosphates were dominating metal release. Similar metal release rates for all substituted SHA (approximately 0.01 cmol kg-1 min-1) at the end of the DTPA experiment indicated that SHA dissolution was supplying the metals into solution and that poorly crystalline metal-oxide/phosphates were not controlling metal release. Results indicate that non-SHA Ca-phosphate phases and poorly crystalline metal-oxide/phosphates will contribute Ca, P, and metals. After these phases have dissolved, substituted SHA will be the source of Ca, P, and metals for plants.
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Affiliation(s)
- B Sutter
- Dep. of Soil and Crop Sciences, Texas A&M Univ., College Station, TX 77843, USA.
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Sutter B, Ming DW, Clearfield A, Hossner LR. Mineralogical and chemical characterization of iron-, manganese-, and copper-containing synthetic hydroxyapatites. SOIL SCIENCE SOCIETY OF AMERICA JOURNAL. SOIL SCIENCE SOCIETY OF AMERICA 2003; 67:1935-1942. [PMID: 14740607 DOI: 10.2136/sssaj2003.1935] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The National Aeronautics and Space Administration's (NASA) Advanced Life Support (ALS) Program is evaluating the use of Fe-, Mn-, and Cu-containing synthetic hydroxyapatite (SHA) as a slow release fertilizer for crops that might be grown on the International Space Station or at Lunar and Martian outposts. Separate Fe-, Mn-, and Cu-containing SHA materials along with a transition-metal free SHA (pure-SHA) were synthesized using a precipitation method. Chemical and mineralogical analyses determined if and how Fe, Mn, and Cu were incorporated into the SHA structure. X-ray diffraction (XRD), Rietveld refinement, and transmission electron microscopy (TEM) confirmed that SHA materials with the apatite structure were produced. Chemical analyses indicated that the metal containing SHA materials were deficient in Ca relative to pure-SHA. The shift in the infrared PO4-mu 3 vibrations, smaller unit cell parameters, smaller particle size, and greater structural strain for Fe-, Mn-, and Cu-containing SHA compared with pure-SHA suggested that Fe, Mn, and Cu were incorporated into SHA structure. Rietveld analyses revealed that Fe, Mn, and Cu substituted into the Ca2 site of SHA. An Fe-rich phase was detected by TEM analyses and backscattered electron microscopy in the Fe-containing SHA material with the greatest Fe content. The substitution of metals into SHA suggests that metal-SHA materials are potential slow-release sources of micronutrients for plant uptake in addition to Ca and P.
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Affiliation(s)
- B Sutter
- Dep. of Soil and Crop Sciences, Texas A&M Univ., College Station, TX 77843, USA.
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Mayer I, Jacobsohn O, Niazov T, Werckmann J, Iliescu M, Richard-Plouet M, Burghaus O, Reinen D. Manganese in Precipitated Hydroxyapatites. Eur J Inorg Chem 2003. [DOI: 10.1002/ejic.200390188] [Citation(s) in RCA: 58] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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