TY - CONF A1 - Radtke, Martin A1 - de Oliveira Guilherme Buzanich, Ana A1 - Reinholz, Uwe A1 - Riesemeier, Heinrich A1 - Scharf, o T1 - The colour X-ray camera – Basics and applications of a 2D X-ray detector N2 - The Color X-ray Camera CXC or SLcam® is an energy-resolving X-ray camera capable of energy- and space-resolved measurements. It consists of a high-speed CCD detector coupled to a polycapil-lary optic that conducts the X-ray photons from the probe to distinct pixels onto the detector. The camera is capable of fast acquisition of spatially and energy resolved fluorescence images. A dedicated software enables the acquisition and the online processing of the spectral data for all 69696 pixels, leading to a real-time visualization of the elements distribution in a sample. It was developed in a joint project with BAM, IFG Berlin and PN Sensors. In this contribution we will mainly discuss the use of the CXC at our beamline, the BAMline at BESSY II and imaging applications of the CXC from different areas, like biology and archaeometry. Additionally new developments for the use of the detector without optics, like wavelength dispersive detection or 1shot-XANES, will be presented. T2 - Seminar Strahlenphysikalische Anwendungen in Technik und Medizin CY - ATi Wien, Austria DA - 24.01.2018 KW - XRF KW - Synchrotron KW - BAMline PY - 2018 AN - OPUS4-46365 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Emmerling, Franziska T1 - Mechanistic investigations of mechanosyntheses N2 - Mechanochemistry is a fast and efficient method applicable for the synthesis of new organic, metal-organic, and inorganic compounds. The direct monitoring of milling reactions is still challenging. The underlying reaction mechanisms often remain unclear. In the last years, we have established a tandem in situ approach for investigating mechanochemical reactions using time-resolved in situ XRD coupled with Raman spectroscopy. A further development is the in situ coupling of synchrotron XRD, Raman spectroscopy, and thermography allowing the observation of mechanochemical reactions in real time. [5] Information on the crystalline, molecular, and temperature state of the materials during grinding could be collected. The chemical composition of the reaction mixture was found to be directly correlated with changes in the temperature profile of the reaction. Furthermore, the presented setup allows the detection of crystalline, amorphous, eutectic as well as liquid intermediates. Based on these data, metastable polymorphs of cocrystals and coordination polymorphs could be isolated and struc-turally characterized. A multi-step diffusion mechanism was identified for most systems. Crystalline phases were obtained intermediately, suggesting that the synthesis is following Ostwald’s rules of stages. The resulting deeper kinetic and thermodynamic understanding of milling processes is the key for future optimization of mechanochemical syntheses. T2 - Beilstein Symposium MECHANOCHEMISTRY: MICROSCOPIC AND MACROSCOPIC ASPECTS CY - Rüdesheim, Germany DA - 13.11.2018 KW - Mechanochemistry KW - Phosphonates KW - In situ PY - 2018 AN - OPUS4-46758 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Grunert, B. A1 - Saatz, Jessica A1 - Hoffmann, Katrin A1 - Appler, F. A1 - Lubjuhn, Dominik A1 - Jakubowski, Norbert A1 - Resch-Genger, Ute A1 - Emmerling, Franziska A1 - Briel, A. T1 - Multifunctional rare-earth element nanocrystals for cell labeling and multimodal imaging N2 - In this work, we describe a simple solvothermal route for the synthesis of Eu3+-doped gadolinium orthovanadate nanocrystals (Eu:GdVO4−PAA) functionalized with poly(acrylic)acid (PAA), that are applicable as cell labeling probes for multimodal cellular imaging. The Eu3+ doping of the vanadate matrix provides optical functionality, due to red photoluminescence after illumination with UV light. The Gd3+ ions of the nanocrystals reduce the T1 relaxation time of surrounding water protons, allowing these nanocrystals to act as a positive MRI contrast agent with a r1 relaxivity of 1.97 mM−1 s−1. Low background levels of Eu3+, Gd3+, and V5+ in biological systems make them an excellent label for elemental microscopy by Laser Ablation (LA)-ICP-MS. Synthesis resulted in polycrystalline nanocrystals with a hydrodynamic diameter of 55 nm and a crystal size of 36.7 nm, which were further characterized by X-ray diffraction (XRD), photoluminescence spectroscopy (PL) and transmission electron microscopy (TEM). The multifunctional nanocrystals were subsequently used for intracellular labeling of both human adipose-derived stem cells (MSCs) and A549 (adenocarcinomic human alveolar basal epithelial) cells. KW - Bioimaging KW - Nanoparticle KW - Multimodal KW - Lanthanide PY - 2018 DO - https://doi.org/10.1021/acsbiomaterials.8b00495 SN - 2373-9878 VL - 4 IS - 10 SP - 3578 EP - 3587 PB - ACS Publications CY - Washington, USA AN - OPUS4-46244 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Braun, Ulrike T1 - About Standardization and Analytics of Microplastics N2 - Presentation about national and international standardization of microplastic analysis, as well as the project RUSEKU T2 - Industrievereinigung Chemiefaser e.V. CY - Frankfurt, Germany DA - 26.02.2019 KW - Standardisation KW - Microplastic KW - Analysis PY - 2019 AN - OPUS4-47577 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Braun, Ulrike T1 - Mikroplastik in der Umwelt und im Trinkwasser: Einordnung der Relevanz und der Methodik N2 - Überblick zur Thematik Mikroplastik mit speziellem Fokus auf Trinkwasser T2 - 20. Jahrestagung Trinkwasserringversuche Nordrhein-Westfalen – Niedersachsen CY - Osnabrück, Germany DA - 06.03.2019 KW - Trinkwasser KW - Umwelt KW - Mikroplastik PY - 2019 AN - OPUS4-47578 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Braun, Ulrike A1 - Müller, Axel A1 - Grathwohl, P. A1 - Vogler, M. A1 - Scholz, K. T1 - Plastik im Boden, Aktueller Forschungsstand N2 - Der Vortrag gibt einen Überblick über ein laufendes Vorhaben zum Thema Mikroplastik in Böden. T2 - NUA-Veranstaltung "Plastik in Natur und Umwelt" CY - Münster, Germany DA - 08.03.2019 KW - Mikroplastik KW - Böden KW - Analytik PY - 2019 AN - OPUS4-47579 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Braun, Ulrike A1 - Bannick, C. G. T1 - Harmonisierung von Untersuchungsverfahren für (Mikro-)Plastik in der Umwelt N2 - Im Rahmen der Thematik "Recycling von Kunststoffen" wird die Thematik "Mikroplastik" vorgestellt T2 - Berliner Recycling- und Rohstoffkonferenz CY - Berlin, Germany DA - 11.03.2019 KW - Mikroplastik KW - Standarisierung KW - Analytik PY - 2019 AN - OPUS4-47582 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Braun, Ulrike A1 - Eisentraut, Paul A1 - Dümichen, E. T1 - Analytik von Mikroplastik mittels Thermoextraktion Desorption Gas Chromatographie Massen Spektrometrie (TED-GC-MS): Nun auch die Luft? N2 - Der Vortrag gibt eine Überblick über die Messung von Mikroplastik mittels TED-GC-MS mit speziellem Fokus auf Luftgetragene Partikel T2 - Odour and Emissions of Plastic Materials CY - Kassel, Germany DA - 19.03.2019 KW - Mikroplastik KW - Standarisierung KW - Analytik PY - 2019 AN - OPUS4-47583 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Weidner, Steffen A1 - Lauer, F. A1 - Seifert, S. A1 - Diehn, S. A1 - Kneipp, Janina T1 - MALDI-TOF MS und MALDI-MSI zur Identifikation und Klassifizierung von Pollen N2 - Es werden die letzten Ergebnisse präsentiert, die es ermöglichen, einzelne Pollenkörner unterschiedlicher Arten in Mischungen mittels MALDI-TOF Massenspektrometrie bzw. MALDI-TOF Imaging zu messen und unter Zuhilfenahme multivariater Auswertemethoden zu klassifizieren. T2 - 24. Bruker MALDI Anwendertreffen CY - Leipzig, Germany DA - 18.02.2019 KW - MALDI-TOF Massenspektrometrie KW - Pollenkörner KW - Klassifizierung KW - MALDI Imaging KW - Multivariate Analyse PY - 2019 AN - OPUS4-47441 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Braun, Ulrike T1 - Repräsentative Untersuchungsstrategien für ein integratives Systemverständnis von spezifischen Einträgen von Kunststoffen in die Umwelt (RUSEKU) N2 - Im Rahmen des Statuskonferenz der BMBF Fördermassnahme wurde über den Projektfortschritt berichtet. T2 - Statusfonferenz der BMBF Fördermassnahme "Plastik in der Umwelt" CY - Berlin, Germany DA - 09.04.2019 KW - Sedimenttaionskasten KW - Probenahme KW - Mikroplastik KW - TED-GC-MS PY - 2019 AN - OPUS4-47796 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Braun, Ulrike T1 - Mikroplastik Analytik: Probennahme, Probenaufbereitung, Detektionsverfahren N2 - Das Diskussionspapier zur Mikroplastik Analytik wurde vorgestellt. Es entstand im Rahmen des Querschnitthemas 1 des BMBF Forschungsschwerpunktes Plastik in der Umwelt. T2 - Statuskonferenz der BMBF Fördermassnahme "Plastik in der Umwelt" CY - Berlin, Germany DA - 09.04.2019 KW - Harmonisierung KW - Mikroplastik KW - Probenahme KW - Detektion KW - Aufbereitung PY - 2019 AN - OPUS4-47797 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Tumanov, I. A1 - Tumanov, E. A1 - Michalchuk, Adam T1 - Ball size or ball mass – what matters in organic mechanochemical synthesis? N2 - Ball mass is an important parameter that is known to have an influence on the outcome of a mechanochemical reaction induced by ball-milling. A standard way of modifying the ball mass is to change the size of the ball made of the same material. In this case, however, a change in mass is accompanied by a simulatneous change in the ball size. It is therefore not possible to disentangle the effects of mass and Surface area in these cases. In the present work we report the results of experiments with specially designed and manufactured balls in which (1) milling ball mass is held constant, but their size differs, and (2) the ball mass is altered, with the diameter of the milling ball being held constant. Using the cocrystallisation of theophylline + nicotinamide as a case study it was found that both diameter and ball mass play crucial roles in determining the rate of a mechanochemical reaction. For comparison, we have also used milling balls with the same size (different mass), and others with the same mass (different size) made of different materials, as would be “traditional”. It was found that, despite having the same size, the lightest milling ball (nylon) was the most efficient in initiating the co-crystallisation, presumably due to the sorption of EtOH. Hence, the results of this manuscript also demonstrate how milling ball material can in fact be the most influential parameter, and potentially counterintuitive to classical mechanics. KW - Mechanochemistry KW - XRD PY - 2019 DO - https://doi.org/0.1039/c8ce02109k VL - 21 SP - 2174 EP - 2179 PB - RSC Royal Society of Chemistry AN - OPUS4-47851 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Pauw, Brian Richard T1 - Glimpses of the future: Systematic investigations of 1200 mofs using a highly automated, full-stack materials research laboratory N2 - By automatically recording as much information as possible in automated laboratory setups, reproducibility and traceability of experiments are vastly improved. This presentation shows what such an approach means for the quality of experiments in an X-ray scattering laboratory and an automated synthesis set-up. T2 - Winter School on Metrology and Nanomaterials for Clean Energy CY - Claviere, Italy DA - 28.01.2024 KW - Digitalization KW - Automation KW - Digital laboratory KW - Scattering KW - Synthesis KW - Nanomaterials KW - Holistic science PY - 2024 AN - OPUS4-59621 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Pauw, Brian Richard T1 - The Dark Side of Science (2024 edition) N2 - This presentation highlights ongoing scientific misconduct as found in academic literature. This includes data- and image manipulation, and paper mills. Starting with an expose of examples, it delves deeper into the causes and metrics driving this phenomenon. Finally a range of possible tools is presented, that the young researcher can use to prevent themselves from sliding into the dark scientific methods. T2 - Winter School on Metrology and Nanomaterials for Clean Energy CY - Claviere, Italy DA - 28.01.2024 KW - Scientific misconduct KW - Data manipulation KW - Image manipulation KW - Paper mills KW - Causes leading to scientific misconduct KW - Tools to combat scientific misconduct KW - Metrics PY - 2024 AN - OPUS4-59622 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Pauw, Brian Richard A1 - Hörmann, Anja T1 - Trinamic TMCL IOC for exposing Trinamics motor controllers to EPICS CA N2 - Trinamic TMCL IOC is a Python package designed for controlling stepper motors connected to a Trinamic board using the TMCL language (all boards supported by PyTrinamic should now work, has been tested on the TMCM 6110 and the TMCM 6214). Since it is implementing the TMCL protocol, it should be easy to adapt to other Trinamic motor controller boards. This package assumes the motor controller is connected over a machine network via a network-to-serial converter, but the underlying PyTrinamic package allows for other connections too. This allows the control of attached motors via the EPICS Channel-Access virtual communications bus. If EPICS is not desired, plain Pythonic control via motion_control should also be possible. An example for this will be provided in the example.ipynb Jupyter notebook. This package leverages Caproto for EPICS IOCs and a modified PyTrinamic library for the motor board control, and interfaces between the two via an internal set of dataclasses. Configuration for the motors and boards are loaded from YAML files (see tests/testdata/example_config.yaml). The modifications to PyTrinamic involved extending their library with a socket interface. This was a minor modification that should eventually find its way into the official package (a pull request has been submitted). KW - Instrumentation KW - Motor controller KW - EPICS KW - Channel access KW - Instrument control KW - Laboratory automation PY - 2024 DO - https://doi.org/10.5281/zenodo.10792593 PB - Zenodo CY - Geneva AN - OPUS4-59624 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ricking, M. A1 - Braun, Ulrike A1 - Altmann, Korinna A1 - Eisentraut, Paul A1 - Reiche, M. A1 - Bannick, C.G. T1 - Probennahmestrategie für die kontinuierliche Mikrokunststoff-Analyse in Oberflächengewässern N2 - Das Poster stellt erste Ergebnisse zur Mikroplastik-Probennahme mit einem Sedimentationskasten dar. T2 - Wasser 2019 CY - Erfurt, Germany DA - 24.05.2019 KW - Mikroplastik KW - Sedimentationskasten KW - Probennahme PY - 2019 AN - OPUS4-49069 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Braun, U. A1 - Bachem, G. A1 - Müller, A. A1 - Kittner, Maria A1 - Altmann, Korinna A1 - Meierdierks, J. A1 - Grathwohl, P. A1 - Lackmann, C. A1 - Simic, A. A1 - Velki, M. A1 - Hollert, H. T1 - Detection of plastics in soil N2 - Soil acts as a final sink for pollutants. Microplastics from different sources such as plastic mulching, littering, compost, sewage sludge, sedimentary deposition, and tyre abrasion are expected to be found in soil. However, representative and comprehensive information is missing on the sources, transport, and fate. Therefore, a reliable analysis method for microplastics in soils needs to be developed. The presented work describes the development of a procedure for microplastics analysis in soils. A representative sampling based on the on-site conditions and a sample preparation method was established and comprised of a drying step, the separation of microplastic particles > 1 mm, and a density separation for particles < 1 mm. The detection of the large microplastic particles (> 1 mm) was conducted with Attenuated Total Reflection - Fourier Transform infrared Spectroscopy (ATR-FTIR) , while Thermal Extraction Desorption - Gas Chromatography / Mass Spectrometry (TED-GC/MS) was applied for particles < 1 mm, gaining information on the type of polymer and mass fraction. Based on the established method, 14 environmental soil samples ? with different exposure of microplastics from agriculture, industrial sites, roads, and floods were investigated. Due to the arbitrary microplastic particle distribution among the samples for large microplastics, it was reasoned that the found particles were unrepresentative. In contrast, microplastic particles < 1 mm were discovered in a high mass in soil samples exposed to plastic mulching or fertilization with sewage sludge or compost (0 – 115 mg/kg). On average, microplastic contents detected in soil samples taken from a construction site and an inner-city lake were higher (13 – 238 mg/kg). As expected, microplastic content in soil sampled in proximity to roads was more pronounced in the upper soil layers. In contrast, very remote sampling sites, expectably uncontaminated, did not lead to the detection of microplastic regarding to thermoanalytical detection method. In a proof of concept experiment several in vivo and in vitro ecotoxicological tests were applied to evaluate the effect of microplastics (tyre abrasion, polystyrene containing hexabromocyclododecane) in natural soils. In summary, while no effects of the examined probes could be detected on higher levels of biological organization after exposures to earthworm E. andrei, significant changes in several oxidative stress related biomarkers were observed. T2 - SETAC Europe 2022 CY - Kopenhagen, Denmark DA - 15.05.2022 KW - Microplastic KW - TED-GC/MS KW - Soil PY - 2022 AN - OPUS4-55872 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Vogl, Jochen A1 - Rosner, M. A1 - Curbera, J. A1 - Peltz, U. A1 - Peplinski, Burkhard T1 - Lead isotope analysis in magic artefacts from the Berlin museums N2 - A set of 59 ancient magical artefacts, mainly made of lead, was selected from the collections of the Staatliche Museen zu Berlin in order to unravel their origins. All the selected artefacts have been studied for their Pb isotope compositions, which covered the whole range of the Mediterranean ore deposits. However, the majority (≈86%) were made of lead matching the small compositional range of the Laurion ore deposits. Only eight out of the 59 artefacts were made of recycled lead or lead from other ore deposits. Additionally, all but two were approximately dated based on their inscriptions. The lead isotopic composition together with information obtained from the inscriptions, the resulting dating, the context of the find and the known history of each item allowed us to gain more detailed information about the origins of these magical artefacts. The Attic provenance of 36 curse tablets was confirmed, whereas for 11 curse tablets previously classified as non-Attic, the provenance was either confirmed and specified (six artefacts) or changed to Attic (five artefacts). Surprisingly, the majority (six out of eight) of the analysed curse tablets from the Egyptian collection showed a lead isotopic composition closely matching that of Laurion. A Laurion-like lead isotopic composition was also observed for three of the four analysed oracular tablets from Dodona. Together with the dating information, this points to Laurion as the major and dominant lead source in the Aegean, at least during the fourth–third century B.C. The few curse tablets from earlier than the fourth–third century B.C. point to the use of multiple and thus isotopically more variable lead sources compared with the Roman times. KW - Lead isotopes KW - Pb isotopes KW - Greek curse tablets KW - Antikensammlung Berlin KW - Ägyptisches Museum Berlin PY - 2018 DO - https://doi.org/10.1007/s12520-016-0445-6 SN - 1866-9557 SN - 1866-9565 VL - 10 IS - 5 SP - 1111 EP - 1127 PB - Springer Verlag CY - Berlin AN - OPUS4-45628 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Pauw, Brian Richard A1 - Smales, Glen Jacob A1 - Moeez, A. A1 - Hörmann, Anja A1 - Breßler, Ingo T1 - Example configurations and test cases for the Python HDF5Translator framework. N2 - This is a set of use examples for the HDF5Translator framework. This framework lets you translate measurement files into a different (e.g. NeXus-compatible) structure, with some optional checks and conversions on the way. For an in-depth look at what it does, there is a blog post here. The use examples provided herein are each accompanied by the measurement data necessary to test and replicate the conversion. The README.md files in each example show the steps necessary to do the conversion for each. We encourage those who have used or adapted one or more of these exampes to create their own conversion, to get in touch with us so we may add your example to the set. KW - Measurement data conversion KW - Data conversion KW - HDF5 KW - NeXus KW - NXsas KW - Framework KW - Python PY - 2024 DO - https://doi.org/10.5281/zenodo.10925971 PB - Zenodo CY - Geneva AN - OPUS4-59796 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rhode, Michael A1 - Richter, Tim A1 - Erxleben, Kjell A1 - Schröpfer, Dirk A1 - Witt, Julia A1 - Özcan-Sandikcioglu, Özlem A1 - Kannengießer, Thomas T1 - Processing and application properties of multiple principal element alloys (MPEA) N2 - The presentation gives an overview of BAM's activities on processing influences and application properties of MPEAs in the form of joined and machined high and medium entropy alloys (CoCrFeMnNi and CoCrNi). In the case of welding, the focus is on defect-free welded joints with sufficient mechanical properties. In the case of machining, the focus is on the possible influence on the surface quality of the materials through adequate milling parameters. In addition, the hydrogen absorption and diffusion properties as well as the electrochemical corrosion behavior are fundamentally examined. T2 - FAU-Department Werkstoffwissenschaften, Seminar: Aktuelle Probleme der Werkstoffwissenschaften CY - Erlangen, Germany DA - 25.04.2024 KW - Welding KW - Application properties KW - Machining KW - High-entropy alloy KW - Hydrogen PY - 2024 AN - OPUS4-59975 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -