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Shipov A, Zaslansky P, Riesemeier H, Segev G, Atkins A, Kalish-Achrai N, Weiner S, Shahar R. The influence of estrogen deficiency on the structural and mechanical properties of rat cortical bone. PeerJ 2021; 9:e10213. [PMID: 33520431 PMCID: PMC7811283 DOI: 10.7717/peerj.10213] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Accepted: 09/28/2020] [Indexed: 11/20/2022] Open
Abstract
Background Post-menopausal osteoporosis is a common health problem worldwide, most commonly caused by estrogen deficiency. Most of the information regarding the skeletal effects of this disease relates to trabecular bone, while cortical bone is less studied. The purpose of this study was to evaluate the influence of estrogen deficiency on the structure and mechanical properties of cortical bone. Methods Eight ovariectomized (OVH) and eight intact (control) Sprague Dawley rats were used.Structural features of femoral cortical bone were studied by light microscopy, scanning electron microscopy and synchrotron-based microcomputer-tomography and their mechanical properties determined by nano-indentation. Results Cortical bone of both study groups contains two distinct regions: organized circumferential lamellae and disordered bone with highly mineralized cartilaginous islands. Lacunar volume was lower in the OVH group both in the lamellar and disorganized regions (182 ± 75 µm3 vs 232 ± 106 µm3, P < 0.001 and 195 ± 86 µm3 vs. 247 ± 106 µm3, P < 0.001, respectively). Lacunar density was also lower in both bone regions of the OVH group (40 ± 18 ×103 lacunae/mm3 vs. 47 ± 9×103 lacunae/mm3 in the lamellar region, P = 0.003 and 63 ± 18×103lacunae/mm3 vs. 75 ± 13×103 lacunae/mm3 in the disorganized region, P < 0.001). Vascular canal volume was lower in the disorganized region of the bone in the OVH group compared to the same region in the control group (P < 0.001). Indentation moduli were not different between the study groups in both bone regions. Discussion Changes to cortical bone associated with estrogen deficiency in rats require high-resolution methods for detection. Caution is required in the application of these results to humans due to major structural differences between human and rat bone.
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Affiliation(s)
- Anna Shipov
- Koret School of Veterinary Medicine, The Hebrew University of Jerusalem, Rehovot, Israel
| | - Paul Zaslansky
- Department for Operative and Preventive Dentistry. Centrum für Zahn-, Mund- und Kieferheilkunde, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | | | - Gilad Segev
- Koret School of Veterinary Medicine, The Hebrew University of Jerusalem, Rehovot, Israel
| | - Ayelet Atkins
- Department of Chemistry and Bar Ilan Institute of Nanotechnology and Advanced Materials (BINA), Bar-Ilan University, Ramat Gan, Israel
| | - Noga Kalish-Achrai
- Koret School of Veterinary Medicine, The Hebrew University of Jerusalem, Rehovot, Israel
| | - Stephen Weiner
- Department of Structural Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Ron Shahar
- Koret School of Veterinary Medicine, The Hebrew University of Jerusalem, Rehovot, Israel
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Reifschneider O, Vennemann A, Buzanich G, Radtke M, Reinholz U, Riesemeier H, Hogeback J, Köppen C, Großgarten M, Sperling M, Wiemann M, Karst U. Revealing Silver Nanoparticle Uptake by Macrophages Using SR-μXRF and LA-ICP-MS. Chem Res Toxicol 2020; 33:1250-1255. [DOI: 10.1021/acs.chemrestox.9b00507] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Olga Reifschneider
- Institute of Inorganic and Analytical Chemistry, Westfälische Wilhelms-Universität Münster, Corrensstraße 28/30, 48149 Münster, Germany
| | - Antje Vennemann
- IBE R&D Institute for Lung Health gGmbH, Mendelstr. 11, 48149 Münster, Germany
| | - Günter Buzanich
- Bundesanstalt für Materialforschung und -prüfung (BAM), Richard-Willstätter-Straße 11, 12489 Berlin, Germany
| | - Martin Radtke
- Bundesanstalt für Materialforschung und -prüfung (BAM), Richard-Willstätter-Straße 11, 12489 Berlin, Germany
| | - Uwe Reinholz
- Bundesanstalt für Materialforschung und -prüfung (BAM), Richard-Willstätter-Straße 11, 12489 Berlin, Germany
| | - Heinrich Riesemeier
- Bundesanstalt für Materialforschung und -prüfung (BAM), Richard-Willstätter-Straße 11, 12489 Berlin, Germany
| | - Jens Hogeback
- Institute of Inorganic and Analytical Chemistry, Westfälische Wilhelms-Universität Münster, Corrensstraße 28/30, 48149 Münster, Germany
| | - Christina Köppen
- Institute of Inorganic and Analytical Chemistry, Westfälische Wilhelms-Universität Münster, Corrensstraße 28/30, 48149 Münster, Germany
| | - Mandy Großgarten
- Institute of Inorganic and Analytical Chemistry, Westfälische Wilhelms-Universität Münster, Corrensstraße 28/30, 48149 Münster, Germany
| | - Michael Sperling
- Institute of Inorganic and Analytical Chemistry, Westfälische Wilhelms-Universität Münster, Corrensstraße 28/30, 48149 Münster, Germany
- European Virtual Institute for Speciation Analysis (EVISA), Mendelstr. 11, 48149 Münster, Germany
| | - Martin Wiemann
- IBE R&D Institute for Lung Health gGmbH, Mendelstr. 11, 48149 Münster, Germany
| | - Uwe Karst
- Institute of Inorganic and Analytical Chemistry, Westfälische Wilhelms-Universität Münster, Corrensstraße 28/30, 48149 Münster, Germany
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3
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Brieger C, Melke J, van der Bosch N, Reinholz U, Riesemeier H, Guilherme Buzanich A, Kayarkatte MK, Derr I, Schökel A, Roth C. A combined in-situ XAS–DRIFTS study unraveling adsorbate induced changes on the Pt nanoparticle structure. J Catal 2016. [DOI: 10.1016/j.jcat.2016.03.034] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Buzanich AG, Radtke M, Reinholz U, Riesemeier H, Emmerling F. Time- and spatial-resolved XAFS spectroscopy in a single shot: new analytical possibilities for in situ material characterization. J Synchrotron Radiat 2016; 23:769-776. [PMID: 27140157 DOI: 10.1107/s1600577516003969] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Accepted: 03/08/2016] [Indexed: 06/05/2023]
Abstract
A new concept that comprises both time- and lateral-resolved X-ray absorption fine-structure information simultaneously in a single shot is presented. This uncomplicated set-up was tested at the BAMline at BESSY-II (Berlin, Germany). The primary broadband beam was generated by a double multilayer monochromator. The transmitted beam through the sample is diffracted by a convexly bent Si (111) crystal, producing a divergent beam. This, in turn, is collected by either an energy-sensitive area detector, the so-called color X-ray camera, or by an area-sensitive detector based on a CCD camera, in θ-2θ geometry. The first tests were performed with thin metal foils and some iron oxide mixtures. A time resolution of lower than 1 s together with a spatial resolution in one dimension of at least 50 µm is achieved.
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Affiliation(s)
- Ana Guilherme Buzanich
- Federal Institute for Materials Research and Testing (BAM), Division 1.3 Structure Analysis, Richard-Willstaetter-Strasse 11, 12489 Berlin, Germany
| | - Martin Radtke
- Federal Institute for Materials Research and Testing (BAM), Division 1.3 Structure Analysis, Richard-Willstaetter-Strasse 11, 12489 Berlin, Germany
| | - Uwe Reinholz
- Federal Institute for Materials Research and Testing (BAM), Division 1.3 Structure Analysis, Richard-Willstaetter-Strasse 11, 12489 Berlin, Germany
| | - Heinrich Riesemeier
- Federal Institute for Materials Research and Testing (BAM), Division 1.3 Structure Analysis, Richard-Willstaetter-Strasse 11, 12489 Berlin, Germany
| | - Franziska Emmerling
- Federal Institute for Materials Research and Testing (BAM), Division 1.3 Structure Analysis, Richard-Willstaetter-Strasse 11, 12489 Berlin, Germany
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5
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Fittschen U, Guilherme A, Böttger S, Rosenberg D, Menzel M, Jansen W, Busker M, Gotlib ZP, Radtke M, Riesemeier H, Wobrauschek P, Streli C. A setup for synchrotron-radiation-induced total reflection X-ray fluorescence and X-ray absorption near-edge structure recently commissioned at BESSY II BAMline. J Synchrotron Radiat 2016; 23:820-824. [PMID: 27140163 DOI: 10.1107/s1600577516001995] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2015] [Accepted: 02/01/2016] [Indexed: 06/05/2023]
Abstract
An automatic sample changer chamber for total reflection X-ray fluorescence (TXRF) and X-ray absorption near-edge structure (XANES) analysis in TXRF geometry was successfully set up at the BAMline at BESSY II. TXRF and TXRF-XANES are valuable tools for elemental determination and speciation, especially where sample amounts are limited (<1 mg) and concentrations are low (ng ml(-1) to µg ml(-1)). TXRF requires a well defined geometry regarding the reflecting surface of a sample carrier and the synchrotron beam. The newly installed chamber allows for reliable sample positioning, remote sample changing and evacuation of the fluorescence beam path. The chamber was successfully used showing accurate determination of elemental amounts in the certified reference material NIST water 1640. Low limits of detection of less than 100 fg absolute (10 pg ml(-1)) for Ni were found. TXRF-XANES on different Re species was applied. An unknown species of Re was found to be Re in the +7 oxidation state.
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Affiliation(s)
- U Fittschen
- Chemistry Department, Washington State University, Pullman, WA 99164, USA
| | - A Guilherme
- BAM, Bundesanstalt für Materialforschung und -prüfung, 12489 Berlin, Germany
| | - S Böttger
- Chemistry and Chemistry Education Department, Europa-Universität Flensburg, 24943 Flensburg, Germany
| | - D Rosenberg
- Chemistry and Chemistry Education Department, Europa-Universität Flensburg, 24943 Flensburg, Germany
| | - M Menzel
- Chemistry Department, University of Hamburg, 20146 Hamburg, Germany
| | - W Jansen
- Chemistry and Chemistry Education Department, Europa-Universität Flensburg, 24943 Flensburg, Germany
| | - M Busker
- Chemistry and Chemistry Education Department, Europa-Universität Flensburg, 24943 Flensburg, Germany
| | - Z P Gotlib
- Chemistry Department, Washington State University, Pullman, WA 99164, USA
| | - M Radtke
- BAM, Bundesanstalt für Materialforschung und -prüfung, 12489 Berlin, Germany
| | - H Riesemeier
- BAM, Bundesanstalt für Materialforschung und -prüfung, 12489 Berlin, Germany
| | - P Wobrauschek
- Atominstitut, Vienna University of Technology, Vienna 1020, Austria
| | - C Streli
- Atominstitut, Vienna University of Technology, Vienna 1020, Austria
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6
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Radtke M, Buzanich G, Guilherme A, Reinholz U, Riesemeier H, Scharf O, Scholz P, Guerra MF. Double Dispersive X-Ray Fluorescence (D 2 XRF) based on an Energy Dispersive pnCCD detector for the detection of platinum in gold. Microchem J 2016. [DOI: 10.1016/j.microc.2015.10.039] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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7
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Fretwurst T, Buzanich G, Nahles S, Woelber JP, Riesemeier H, Nelson K. Metal elements in tissue with dental peri-implantitis: a pilot study. Clin Oral Implants Res 2015; 27:1178-86. [PMID: 26508041 DOI: 10.1111/clr.12718] [Citation(s) in RCA: 105] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/18/2015] [Indexed: 01/13/2023]
Abstract
OBJECTIVES Dental peri-implantitis is characterized by a multifactorial etiology. The role of metal elements as an etiological factor for peri-implantitis is still unclear. The aim of this study was to investigate the incidence of metal elements in bone and mucosal tissues around dental Grade 4 CP titanium implants with signs of peri-implantitis in human patients. METHODS In this prospective pilot study, all patients were enrolled consecutively in two study centers. Bone and soft tissue samples of patients with peri-implantitis with indication for explantation were analyzed for the incidence of different elements (Ca, P, Ti, Fe) by means of synchrotron radiation X-ray fluorescence spectroscopy (SRXRF) and polarized light microscopy (PLM). The existence of macrophages and lymphocytes in the histologic specimens was analyzed. RESULTS Biopsies of 12 patients (seven bone samples, five mucosal samples) were included and analyzed. In nine of the 12 samples (75%), the SRXRF examination revealed the existence of titanium (Ti) and an associated occurrence with Iron (Fe). Metal particles were detected in peri-implant soft tissue using PLM. In samples with increased titanium concentration, lymphocytes were detected, whereas M1 macrophages were predominantly seen in samples with metal particles. CONCLUSION Titanium and Iron elements were found in soft and hard tissue biopsies retrieved from peri-implantitis sites. Further histologic and immunohistochemical studies need to clarify which specific immune reaction metal elements/particles induce in dental peri-implant tissue.
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Affiliation(s)
- Tobias Fretwurst
- Department of Oral and Craniomaxillofacial Surgery, Center for Dental Medicine, University Medical Center Freiburg, Freiburg, Germany
| | - Guenter Buzanich
- BAM Federal Institute for Materials Research and Testing, Berlin, Germany
| | - Susanne Nahles
- Department of Oral and Maxillofacial Surgery, Navigation and Robotics, Charité Campus Virchow, Berlin, Germany
| | - Johan Peter Woelber
- Department of Operative Dentistry and Periodontology, Center for Dental Medicine, University Medical Center, Freiburg, Germany
| | | | - Katja Nelson
- Department of Oral and Craniomaxillofacial Surgery, Center for Dental Medicine, University Medical Center Freiburg, Freiburg, Germany
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8
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Lahiri D, Sharma SM, Verma AK, Vishwanadh B, Dey GK, Schumacher G, Scherb T, Riesemeier H, Reinholz U, Radtke M, Banerjee S. Investigation of short-range structural order in Zr69.5Cu12Ni11Al7.5 and Zr41.5Ti41.5Ni17 glasses, using X-ray absorption spectroscopy and ab initio molecular dynamics simulations. J Synchrotron Radiat 2014; 21:1296-1304. [PMID: 25343798 DOI: 10.1107/s1600577514017792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2014] [Accepted: 08/01/2014] [Indexed: 06/04/2023]
Abstract
Short-range order has been investigated in Zr69.5Cu12Ni11Al7.5 and Zr41.5Ti41.5Ni17 metallic glasses using X-ray absorption spectroscopy and ab initio molecular dynamics simulations. While both of these alloys are good glass formers, there is a difference in their glass-forming abilities (Zr41.5Ti41.5Ni17 > Zr69.5Cu12Ni11Al7.5). This difference is explained by inciting the relative importance of strong chemical order, icosahedral content, cluster symmetry and configuration diversity.
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Affiliation(s)
- Debdutta Lahiri
- High Pressure and Synchrotron Radiation Physics Division, Bhabha Atomic Research Centre, Mumbai 400085, India
| | - Surinder M Sharma
- High Pressure and Synchrotron Radiation Physics Division, Bhabha Atomic Research Centre, Mumbai 400085, India
| | - Ashok K Verma
- High Pressure and Synchrotron Radiation Physics Division, Bhabha Atomic Research Centre, Mumbai 400085, India
| | - B Vishwanadh
- Materials Science Division, Bhabha Atomic Research Centre, Mumbai 400085, India
| | - G K Dey
- Materials Science Division, Bhabha Atomic Research Centre, Mumbai 400085, India
| | - Gerhard Schumacher
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Institut für Angewandte Materialforschung, Hahn-Meitner-Platz 1, D-14109 Berlin, Germany
| | - Tobias Scherb
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Institut für Angewandte Materialforschung, Hahn-Meitner-Platz 1, D-14109 Berlin, Germany
| | - Heinrich Riesemeier
- Federal Institute for Materials Research and Testing, Richard-Willstätter-Straße 11, Berlin 12489, Germany
| | - Uwe Reinholz
- Federal Institute for Materials Research and Testing, Richard-Willstätter-Straße 11, Berlin 12489, Germany
| | - Martin Radtke
- Federal Institute for Materials Research and Testing, Richard-Willstätter-Straße 11, Berlin 12489, Germany
| | - S Banerjee
- Bhabha Atomic Research Centre, Mumbai 400085, India
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Szczerba W, Schott M, Riesemeier H, Thünemann AF, Kurth DG. Thermally induced structural rearrangement of the Fe(ii) coordination geometry in metallo-supramolecular polyelectrolytes. Phys Chem Chem Phys 2014; 16:19694-701. [DOI: 10.1039/c4cp01187b] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Annealing of Fe-MEPE causes a shortening of the axial Fe–N bonds and a widening of the bite-angle of the terpyridine unit.
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Affiliation(s)
- Wojciech Szczerba
- BAM Federal Institute for Materials Research and Testing
- 12205 Berlin, Germany
| | - Marco Schott
- Julius-Maximilians University Würzburg
- Chemical Technology of Advanced Materials
- 97070 Würzburg, Germany
| | - Heinrich Riesemeier
- BAM Federal Institute for Materials Research and Testing
- 12205 Berlin, Germany
| | | | - Dirk G. Kurth
- Julius-Maximilians University Würzburg
- Chemical Technology of Advanced Materials
- 97070 Würzburg, Germany
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Arlt T, Klages M, Messserschmidt M, Riesemeier H, Scholta J, Banhart J, Manke I. Influence of Artificial Aging of Gas Diffusion Layers on the Water Management of PEM Fuel Cells. ACTA ACUST UNITED AC 2013. [DOI: 10.1149/2.004402eel] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Markötter H, Haußmann J, Alink R, Tötzke C, Arlt T, Klages M, Riesemeier H, Scholta J, Gerteisen D, Banhart J, Manke I. Influence of cracks in the microporous layer on the water distribution in a PEM fuel cell investigated by synchrotron radiography. Electrochem commun 2013. [DOI: 10.1016/j.elecom.2013.04.006] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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Shipov A, Zaslansky P, Riesemeier H, Segev G, Atkins A, Shahar R. Unremodeled endochondral bone is a major architectural component of the cortical bone of the rat (Rattus norvegicus). J Struct Biol 2013; 183:132-40. [DOI: 10.1016/j.jsb.2013.04.010] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2013] [Revised: 04/12/2013] [Accepted: 04/21/2013] [Indexed: 12/31/2022]
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Radtke M, Reiche I, Reinholz U, Riesemeier H, Guerra MF. Beyond the Great Wall: Gold of the Silk Roads and the First Empire of the Steppes. Anal Chem 2013; 85:1650-6. [PMID: 23234594 DOI: 10.1021/ac3025416] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Martin Radtke
- BAM Federal Institute for Materials Research and Testing, Richard-Willstätter-Strasse
11, 12489 Berlin, Germany
| | - Ina Reiche
- Centre de Recherche et de Restauration des Musées de France, Palais
du Louvre, 14, quai François Mitterrand, 75001 Paris, France
| | - Uwe Reinholz
- BAM Federal Institute for Materials Research and Testing, Richard-Willstätter-Strasse
11, 12489 Berlin, Germany
| | - Heinrich Riesemeier
- BAM Federal Institute for Materials Research and Testing, Richard-Willstätter-Strasse
11, 12489 Berlin, Germany
| | - Maria F. Guerra
- Centre de Recherche et de Restauration des Musées de France, Palais
du Louvre, 14, quai François Mitterrand, 75001 Paris, France
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Kaiser J, Szczerba W, Riesemeier H, Reinholz U, Radtke M, Albrecht M, Lu Y, Ballauff M. The structure of AuPd nanoalloys anchored on spherical polyelectrolyte brushes determined by X-ray absorption spectroscopy. Faraday Discuss 2013; 162:45-55. [DOI: 10.1039/c3fd20132e] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Rack T, Zabler S, Rack A, Riesemeier H, Nelson K. An In Vitro Pilot Study of Abutment Stability During Loading in New and Fatigue-Loaded Conical Dental Implants Using Synchrotron-Based Radiography. Int J Oral Maxillofac Implants 2013; 28:44-50. [DOI: 10.11607/jomi.2748] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Shipov A, Zaslanski P, Riesemeier H, Shahar R. THE MICROSTRUCTURE OF RAT CORTICAL BONE: A SYNCHROTRON TOMOGRAPHY-BASED STUDY. J Biomech 2012. [DOI: 10.1016/s0021-9290(12)70547-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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El-Hasan T, Szczerba W, Buzanich G, Radtke M, Riesemeier H, Kersten M. Cr(VI)/Cr(III) and As(V)/As(III) ratio assessments in Jordanian spent oil shale produced by aerobic combustion and Anaerobic Pyrolysis. Environ Sci Technol 2011; 45:9799-9805. [PMID: 21970732 DOI: 10.1021/es200695e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
With the increase in the awareness of the public in the environmental impact of oil shale utilization, it is of interest to reveal the mobility of potentially toxic trace elements in spent oil shale. Therefore, the Cr and As oxidation state in a representative Jordanian oil shale sample from the El-Lajjoun area were investigated upon different lab-scale furnace treatments. The anaerobic pyrolysis was performed in a retort flushed by nitrogen gas at temperatures in between 600 and 800 °C (pyrolytic oil shale, POS). The aerobic combustion was simply performed in porcelain cups heated in a muffle furnace for 4 h at temperatures in between 700 and 1000 °C (burned oil shale, BOS). The high loss-on-ignition in the BOS samples of up to 370 g kg(-1) results from both calcium carbonate and organic carbon degradation. The LOI leads to enrichment in the Cr concentrations from 480 mg kg(-1) in the original oil shale up to 675 mg kg(-1) in the ≥ 850 °C BOS samples. Arsenic concentrations were not much elevated beyond that in the average shale standard (13 mg kg(-1)). Synchrotron-based X-ray absorption near-edge structure (XANES) analysis revealed that within the original oil shale the oxidation states of Cr and As were lower than after its aerobic combustion. Cr(VI) increased from 0% in the untreated or pyrolyzed oil shale up to 60% in the BOS ash combusted at 850 °C, while As(V) increased from 64% in the original oil shale up to 100% in the BOS ash at 700 °C. No Cr was released from original oil shale and POS products by the European compliance leaching test CEN/TC 292 EN 12457-1 (1:2 solid/water ratio, 24 h shaking), whereas leachates from BOS samples showed Cr release in the order of one mmol L(-1). The leachable Cr content is dominated by chromate as revealed by catalytic adsorptive stripping voltammetry (CAdSV) which could cause harmful contamination of surface and groundwater in the semiarid environment of Jordan.
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Affiliation(s)
- Tayel El-Hasan
- Geology Department, Faculty of Science, Taibah University, Al-Madinah Al-Munawwarah, KSA
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Giere P, Möller L, Hilger A, Paulke A, Riesemeier H, Kuehbacher M. Erratum: Modern and classic approaches towards revealing the orbital mosaic in the common shrew Sorex araneus Linnaeus, 1758 (Soricidae, Lipotyphla, Mammalia). ZOOSYST EVOL 2011. [DOI: 10.1002/zoos.201100016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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Arlt T, Manke I, Wippermann K, Tötzke C, Markötter H, Riesemeier H, Mergel J, Banhart J. Investigation of the three-dimensional ruthenium distribution in fresh and aged membrane electrode assemblies with synchrotron X-ray absorption edge tomography. Electrochem commun 2011. [DOI: 10.1016/j.elecom.2011.05.013] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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Scharf O, Ihle S, Ordavo I, Arkadiev V, Bjeoumikhov A, Bjeoumikhova S, Buzanich G, Gubzhokov R, Günther A, Hartmann R, Kühbacher M, Lang M, Langhoff N, Liebel A, Radtke M, Reinholz U, Riesemeier H, Soltau H, Strüder L, Thünemann AF, Wedell R. Compact pnCCD-based X-ray camera with high spatial and energy resolution: a color X-ray camera. Anal Chem 2011; 83:2532-8. [PMID: 21355541 DOI: 10.1021/ac102811p] [Citation(s) in RCA: 120] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
For many applications there is a requirement for nondestructive analytical investigation of the elemental distribution in a sample. With the improvement of X-ray optics and spectroscopic X-ray imagers, full field X-ray fluorescence (FF-XRF) methods are feasible. A new device for high-resolution X-ray imaging, an energy and spatial resolving X-ray camera, is presented. The basic idea behind this so-called "color X-ray camera" (CXC) is to combine an energy dispersive array detector for X-rays, in this case a pnCCD, with polycapillary optics. Imaging is achieved using multiframe recording of the energy and the point of impact of single photons. The camera was tested using a laboratory 30 μm microfocus X-ray tube and synchrotron radiation from BESSY II at the BAMline facility. These experiments demonstrate the suitability of the camera for X-ray fluorescence analytics. The camera simultaneously records 69,696 spectra with an energy resolution of 152 eV for manganese K(α) with a spatial resolution of 50 μm over an imaging area of 12.7 × 12.7 mm(2). It is sensitive to photons in the energy region between 3 and 40 keV, limited by a 50 μm beryllium window, and the sensitive thickness of 450 μm of the chip. Online preview of the sample is possible as the software updates the sums of the counts for certain energy channel ranges during the measurement and displays 2-D false-color maps as well as spectra of selected regions. The complete data cube of 264 × 264 spectra is saved for further qualitative and quantitative processing.
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Affiliation(s)
- O Scharf
- BAM Federal Institute for Materials Research and Testing, Richard-Willstätter-Strasse 11, 12489 Berlin, Germany.
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21
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Szczerba W, Radtke M, Reinholz U, Riesemeier H, Fenger R, Rademann K, Thünemann A. RETRACTED: Au–Au bond length expansion in CTAB stabilized gold nanoparticles. Radiat Phys Chem Oxf Engl 1993 2011. [DOI: 10.1016/j.radphyschem.2011.02.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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22
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Polte J, Kraehnert R, Radtke M, Reinholz U, Riesemeier H, Thünemann AF, Emmerling F. New insights of the nucleation and growth process of gold nanoparticles via in situ coupling of SAXS and XANES. ACTA ACUST UNITED AC 2010. [DOI: 10.1088/1742-6596/247/1/012051] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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23
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Giere P, Möller L, Hilger A, Paulke A, Riesemeier H, Kuehbacher M. Modern and classic approaches towards revealing the orbital mosaic in the common shrew Sorex araneus Linnaeus, 1758 (Soricidae, Lipotyphla, Mammalia). ZOOSYST EVOL 2010. [DOI: 10.1002/zoos.201000016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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24
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Maier W, Arlt T, Wannek C, Manke I, Riesemeier H, Krüger P, Scholta J, Lehnert W, Banhart J, Stolten D. In-situ synchrotron X-ray radiography on high temperature polymer electrolyte fuel cells. Electrochem commun 2010. [DOI: 10.1016/j.elecom.2010.08.002] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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25
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Szczerba W, Riesemeier H, Thünemann AF. Bond length contraction in gold nanoparticles. Anal Bioanal Chem 2010; 398:1967-72. [DOI: 10.1007/s00216-010-4200-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2010] [Revised: 09/06/2010] [Accepted: 09/06/2010] [Indexed: 11/29/2022]
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Polte J, Emmerling F, Radtke M, Reinholz U, Riesemeier H, Thünemann AF. Real-time monitoring of copolymer stabilized growing gold nanoparticles. Langmuir 2010; 26:5889-5894. [PMID: 20085232 DOI: 10.1021/la903829q] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
A great challenge in the production of nanoparticles with defined sizes and properties is to control their growth in situ. We developed a dedicated combined small-angle X-ray scattering (SAXS) and X-ray absorption spectroscopy (XAS) setup to monitor nanoparticle formation in solution. The capabilities of simultaneously deriving particle sizes and oxidation states of atoms/ions are illustrated for the formation of spherical gold nanoparticles by the reduction of hydrogen tetrachloroaureate (HAuCl(4)). Particles with initial radii of 4.60 +/- 0.10 nm and final radii of 5.67 +/- 0.10 nm were produced in a levitated droplet with a volume of 4 microL. An ethylene oxide/propylene oxide triblock copolymer PEO-PPO-PEO (Pluronic F-127) functions as reducing agent and colloidal stabilizer. XANES shows in situ how the gold was reduced in the droplet from Au(III) to Au(0), and simultaneously SAXS recorded the size distribution of the formed nanoparticles. It is shown that the final particle number is reached quickly. Thereafter, only the particles' sizes increase. Comparison of XANES and SAXS shows that the quantity of Au(0) is higher than the quantity of gold located in the nanoparticles while the particles are growing. Finally, all the Au(0) is found in the nanoparticles. We tentatively attribute this finding to the pseudo crown ether effect of the polymer surfactant that kinetically stabilizes gold atoms when formed from gold ions within their protecting cavity. A simple "burst" mechanism for the gold nanoparticle formation is the consequence. The possibility of an inhomogeneous particles structure with an enhanced density near the particle surface is discussed.
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Affiliation(s)
- Jörg Polte
- BAM Federal Institute for Materials Research and Testing, Richard-Willstaetter-Strasse 11, 12489 Berlin, Germany
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27
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Rack A, Rack T, Stiller M, Riesemeier H, Zabler S, Nelson K. In vitro synchrotron-based radiography of micro-gap formation at the implant-abutment interface of two-piece dental implants. J Synchrotron Radiat 2010; 17:289-94. [PMID: 20157285 PMCID: PMC2823585 DOI: 10.1107/s0909049510001834] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2009] [Accepted: 01/14/2010] [Indexed: 05/26/2023]
Abstract
Micro-gap formation at the implant-abutment interface of two-piece dental implants was investigated in vitro using high-resolution radiography in combination with hard X-ray synchrotron radiation. Images were taken with the specimen under different mechanical loads of up to 100 N. The aim of this investigation was to prove the existence of micro-gaps for implants with conical connections as well as to study the mechanical behavior of the mating zone of conical implants during loading. Synchrotron-based radiography in comparison with classical laboratory radiography yields high spatial resolution in combination with high contrast even when exploiting micro-sized features in highly attenuating objects. The first illustration of a micro-gap which was previously indistinguishable by laboratory methods underlines that the complex micro-mechanical behavior of implants requires further in vitro investigations where synchrotron-based micro-imaging is one of the prerequisites.
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Affiliation(s)
- A Rack
- European Synchrotron Radiation Facility, Grenoble, France.
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28
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Zehbe R, Haibel A, Riesemeier H, Gross U, Kirkpatrick CJ, Schubert H, Brochhausen C. Going beyond histology. Synchrotron micro-computed tomography as a methodology for biological tissue characterization: from tissue morphology to individual cells. J R Soc Interface 2010; 7:49-59. [PMID: 19324670 PMCID: PMC2839371 DOI: 10.1098/rsif.2008.0539] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2008] [Accepted: 02/23/2009] [Indexed: 11/23/2022] Open
Abstract
Current light microscopic methods such as serial sectioning, confocal microscopy or multiphoton microscopy are severely limited in their ability to analyse rather opaque biological structures in three dimensions, while electron optical methods offer either a good three-dimensional topographic visualization (scanning electron microscopy) or high-resolution imaging of very thin samples (transmission electron microscopy). However, sample preparation commonly results in a significant alteration and the destruction of the three-dimensional integrity of the specimen. Depending on the selected photon energy, the interaction between X-rays and biological matter provides semi-transparency of the specimen, allowing penetration of even large specimens. Based on the projection-slice theorem, angular projections can be used for tomographic imaging. This method is well developed in medical and materials science for structure sizes down to several micrometres and is considered as being non-destructive. Achieving a spatial and structural resolution that is sufficient for the imaging of cells inside biological tissues is difficult due to several experimental conditions. A major problem that cannot be resolved with conventional X-ray sources are the low differences in density and absorption contrast of cells and the surrounding tissue. Therefore, X-ray monochromatization coupled with a sufficiently high photon flux and coherent beam properties are key requirements and currently only possible with synchrotron-produced X-rays. In this study, we report on the three-dimensional morphological characterization of articular cartilage using synchrotron-generated X-rays demonstrating the spatial distribution of single cells inside the tissue and their quantification, while comparing our findings to conventional histological techniques.
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Affiliation(s)
- Rolf Zehbe
- Institute of Materials Science and Technologies, Technische Universität Berlin, Englische Strasse 20, 10587 Berlin, Germany.
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Riesemeier H, Rack A, Zabler S, Goebbels J, Müller BR, Banhart J. The synchrotron-based imaging station for micro-radiography and-tomography at the BAMline (BESSY). ACTA ACUST UNITED AC 2009. [DOI: 10.1088/1742-6596/186/1/012047] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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30
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Hartnig C, Manke I, Schloesser J, Krüger P, Kuhn R, Riesemeier H, Wippermann K, Banhart J. High resolution synchrotron X-ray investigation of carbon dioxide evolution in operating direct methanol fuel cells. Electrochem commun 2009. [DOI: 10.1016/j.elecom.2009.05.047] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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31
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Paris O, Li C, Siegel S, Weseloh G, Emmerling F, Riesemeier H, Erko A, Fratzl P. A new experimental station for simultaneous X-ray microbeam scanning for small- and wide-angle scattering and fluorescence at BESSY II. J Appl Crystallogr 2006. [DOI: 10.1107/s0021889806045444] [Citation(s) in RCA: 137] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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32
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Zabler S, Riesemeier H, Fratzl P, Zaslansky P. Fresnel-propagated imaging for the study of human tooth dentin by partially coherent x-ray tomography. Opt Express 2006; 14:8584-8597. [PMID: 19529238 DOI: 10.1364/oe.14.008584] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Recent methods of phase imaging in x-ray tomography allow the visualization of features that are not resolved in conventional absorption microtomography. Of these, the relatively simple setup needed to produce Fresnel-propagated tomograms appears to be well suited to probe tooth-dentin where composition as well as microstructure vary in a graded manner. By adapting analytical propagation approximations we provide predictions of the form of the interference patterns in the 3D images, which we compare to numerical simulations as well as data obtained from measurements of water immersed samples. Our observations reveal details of the tubular structure of dentin, and may be evaluated similarly to conventional absorption tomograms. We believe this exemplifies the power of Fresnel-propagated imaging as a form of 3D microscopy, well suited to quantify gradual microstructural-variations in teeth and similar tissues.
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Eichelbaum M, Rademann K, Müller R, Radtke M, Riesemeier H, Görner W. Zur Chemie des Goldes in Silicatgläsern: Untersuchungen zum nicht-thermisch aktivierten Wachstum von Goldclustern. Angew Chem Int Ed Engl 2005. [DOI: 10.1002/ange.200502174] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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34
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Eichelbaum M, Rademann K, Müller R, Radtke M, Riesemeier H, Görner W. On the Chemistry of Gold in Silicate Glasses: Studies on a Nonthermally Activated Growth of Gold Nanoparticles. Angew Chem Int Ed Engl 2005; 44:7905-9. [PMID: 16259030 DOI: 10.1002/anie.200502174] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Maik Eichelbaum
- Institut für Chemie, Humboldt-Universität zu Berlin, Germany
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35
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Goren SD, Korn C, Riesemeier H, Lüders K. Nuclear quadrupole resonance of Cu in hydrogenated YBa2Cu3O7. Phys Rev B Condens Matter 1993; 47:2821-2824. [PMID: 10006341 DOI: 10.1103/physrevb.47.2821] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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36
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Goren SD, Korn C, Volterra V, Riesemeier H, Rössler E, Vieth HM, Lüders K. NMR of 1H and 2D in hydrogen-doped and deuterium-doped YBa2Cu3O7. Phys Rev B Condens Matter 1992; 46:14142-14149. [PMID: 10003487 DOI: 10.1103/physrevb.46.14142] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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37
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Goren SD, Korn C, Volterra V, Riesemeier H, Rössler E, Schaefer M, Vieth HM, Lüders K. Influence of hydrogen on the 89Y NMR in HxYBa2Cu3O7. Phys Rev B Condens Matter 1990; 42:7949-7952. [PMID: 9994958 DOI: 10.1103/physrevb.42.7949] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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38
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Kunoff EM, Goren SD, Korn C, Riesemeier H, Stang I, Lüders K. 1H NMR study of residual HNO3-intercalated graphite. Phys Rev B Condens Matter 1989; 39:6148-6155. [PMID: 9949040 DOI: 10.1103/physrevb.39.6148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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39
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Scheidt EW, Riesemeier H, Lüders K, Indlekofer G, Oelhafen P, Güntherodt HJ. Superconductivity, Susceptibility and Resistivity in Uranium Based Metallic Glasses*. Z PHYS CHEM 1988. [DOI: 10.1524/zpch.1988.157.part_2.737] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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40
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Goren SD, Korn C, Riesemeier H, Rössler E, Lüders K. Titanium Knight shift in titanium hydride. Phys Rev B Condens Matter 1986; 34:6917-6923. [PMID: 9939343 DOI: 10.1103/physrevb.34.6917] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
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