TY - CONF A1 - Hodoroaba, Vasile-Dan T1 - Ongoing VAMAS ILC s on Nanoparticles and Graphene Oxide N2 - This contributions shows the first results of the ongoing interlaboratory comparisons under VAMAS/TWA 34 Nanoparticle populations related on the determination of pasrticle size distribution and relative concentration of nanoparticles and an example of an ILC running under VAMAS/TWA 41 Graphene and Related 2D Materials on the determination of the lateral diemsnions of graphene oxide flakes by Scanning Electron Microscopy. The link to related standardisation projects at ISO/TC Nanotechnologies are explained. T2 - Webinar Building the Foundation: Interlaboratory Comparisons and Reference Products for Advanced Materials CY - Berlin, Germany DA - 16.05.2024 KW - Nanoparticles KW - VAMAS KW - Interlaboratory comparison KW - Standardisation KW - Electron microscopy KW - AFM KW - SAXS PY - 2024 AN - OPUS4-60097 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Hodoroaba, Vasile-Dan A1 - Fontanges, Richard T1 - A new deep-learning AI tool for analysing images of complex nanoparticles N2 - A thousand times thinner than a human hair, nanoparticles (NPs) are finding applications in a range of modern products. However, as some can affect human health or the environment, knowing the types present is essential. Electron microscopy is the ‘gold standard’ for NP analysis, allowing identification based on manual size analysis, but a new method was required to analyse these particles quickly, accurately and in a consistent way. KW - Nanoparticles KW - Imaging KW - AI tool KW - Particle size and shape distribution PY - 2024 UR - https://www.euramet.org/casestudies/casestudiesdetails/news/a-new-deep-learning-ai-tool-for-analysing-images-of-complex-nanoparticles SP - 1 EP - 2 PB - EURAMET CY - Braunschweig AN - OPUS4-60095 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Hodoroaba, Vasile-Dan T1 - Delivering Impact - A new ISO standard on the identification of nanoparticles N2 - Nanoparticles (NPs) are tiny – around 1 to 100 billionths of a meter – and can have different chemistries and behaviours than the same material of larger size. This property has led to advances in a wide range of industries, but it can also confer toxicity. Size measurements are the main way NPs are identified but a lack of standardised methods for identifying ones with complex shapes has hindered evaluation of their potential harm. KW - Nanoparticles KW - Standardisation KW - Particle size distribution KW - nPSize KW - ISO 21363 PY - 2024 UR - https://www.euramet.org/casestudies/casestudiesdetails/news/default-c3b26209e8 SP - 1 EP - 2 PB - EURAMET CY - Braunschweig AN - OPUS4-59626 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - RPRT A1 - Bartczack, Dorota A1 - Taché, Olivier A1 - Hodoroaba, Vasile-Dan T1 - Report on the homogeneity assessment of bimodal gold materials (nPSize1 and nPSize2) and particle number concentration by frequency method T2 - Community EMPIR Project 17NRM04 nPSize (Improved traceability chain of nanoparticle size measurements) N2 - The main objective was to assess homogeneity of two bimodal gold materials, namely nPsize1 and nPSize2, containing approximately 1:1 and 10:1 particle number-based ratio of ~30nm and ~60nm particles. Particle number-based concentration within the two size fractions was determined with spICP-MS using the particle frequency method of calibration. KW - Nanoparticles KW - Homogeneity KW - Particle number concentration KW - Gold KW - nPSize PY - 2023 UR - https://nbn-resolving.org/urn:nbn:de:kobv:b43-595451 DO - https://doi.org/10.5281/zenodo.10654245 SP - 1 EP - 5 PB - Zenodo CY - Geneva AN - OPUS4-59545 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Paul, Maxi B. A1 - Böhmert, Linda A1 - Thünemann, Andreas A1 - Loeschner, Katrin A1 - Givelet, Lucas A1 - Fahrenson, Christoph A1 - Braeuning, Albert A1 - Sieg, Holger T1 - Influence of artificial digestion on characteristics and intestinal cellular effects of micro-, submicro- and nanoplastics JF - Food and Chemical Toxicology N2 - The production of plastics is rising since they have been invented. Micro, submicro- and nanoplastics are produced intentionally or generated by environmental processes, and constitute ubiquitous contaminants which are ingested orally by consumers. Reported health concerns include intestinal translocation, inflammatory response, oxidative stress and cytotoxicity. Every digestive milieu in the gastrointestinal tract does have an influence on the properties of particles and can cause changes in their effect on biological systems. In this study, we subjected plastic particles of different materials (polylactic acid, polymethylmethacrylate, melamine formaldehyde) and sizes (micro- to nano-range) to a complex artificial digestion model consisting of three intestinal fluid simulants (saliva, gastric and intestinal juice). We monitored the impact of the digestion process on the particles by performing Dynamic Light Scattering, Scanning Electron Microscopy and Asymmetric Flow Field-Flow Fractionation. An in vitro model of the intestinal epithelial barrier was used to monitor cellular effects and translocation behavior of (un)digested particles. In conclusion, artificial digestion decreased cellular interaction and slightly increased transport of all particles across the intestinal barrier. The interaction with organic matter resulted in clear differences in the agglomeration behavior. Moreover, we provide evidence for polymer-, size- and surface-dependent cellular effects of the test particles. KW - Toxicology KW - Nanoparticles KW - Dynamic Light Scattering KW - Nanoplastics KW - Microplastics KW - Reference Method KW - Reference Material PY - 2024 UR - https://nbn-resolving.org/urn:nbn:de:kobv:b43-593947 DO - https://doi.org/10.1016/j.fct.2023.114423 VL - 184 SP - 1 EP - 16 PB - Elsevier BV AN - OPUS4-59394 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hodoroaba, Vasile-Dan A1 - Rühle, Bastian A1 - Bresch, Harald T1 - Competence Center nano@BAM Welcomes ISO/TC 229 Meeting in Berlin N2 - The Competence Center nano@BAM is presented. Examples directly related to the activities of the ISO Technical Committee TC 229 Nanotechnologies as well as BAM projects on nano reference measurement procedures, nano reference materials and nano reference data sets are showed. T2 - The 32nd ISO/TC 229 IEC/TC 113 JWG2 General Meeting CY - Berlin, Germany DA - 06.11.2023 KW - ISO/TC 229 Nanotechnologies KW - Nanoparticles KW - Nano@BAM KW - Reference materials KW - Reference data KW - Reference procedures PY - 2023 AN - OPUS4-58814 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - El Abbassi, Abdelouahad T1 - Multifaceted Nanoparticles: Labeling, Heterostructures, and Aggregation-induced Dual-emission Systems for Advanced Applications N2 - Nanoparticles with novel physico-chemical properties have an impact on various scientific disciplines, including medical diagnostics, energy conversion, catalysis, and solid-state lighting. Here, I present examples from my previous work on organic and inorganic nanoscale systems, such as superparamagnetic iron oxide nanoparticles (SPIONs) for blood platelet labeling and magnetic copper-doped bioactive glasses for bone cancer therapy. Additionally, I provide a first insight into my recently started Ph.D. project focusing on bichromophoric organic fluorophores exhibiting Aggregation-Induced Dual-Emission (AIDE) and their integration into nanostructures for water-dispersible nanoscale reporters and nanosensors. T2 - Bad-Honnef Summer School Exciting Nanostructures 2023 CY - Bad Honnef, Germany DA - 30.07.2023 KW - Nanoparticles KW - AIE KW - SPIONS PY - 2023 AN - OPUS4-58204 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Chambers, Aaron A1 - Smales, Glen A1 - Pauw, Brian Richard A1 - Yeung, Hamish T1 - Using an automation assisted Synthesis to produce functionalized ZIF-8 nanoparticles for effective composite formation N2 - This presentation details the progress of the PhD project so far. It discuss the background of the project such as what is a MOF, ZIF and ZIF composite before discussing the aims and approaches for the work. Then the presentation looks at the data obtained so far and the techniques/syntheses used. T2 - Postgraduate Researcher Symposium, University of Birmingham CY - Online meeting DA - 27.06.2023 KW - Automation KW - Nanoparticles KW - ZIF-8 KW - Composites PY - 2023 AN - OPUS4-57867 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Knigge, Xenia A1 - Radnik, Jörg T1 - Physico-chemical characterization of sterile Fe3O4 nanoparticles by XPS / HAXPES / SEM N2 - Here a dataset of XPS, HAXPES and SEM measurements for the physico-chemical characterization of sterile Fe3O4 nanoparticles is presented. The measurements are part of the H2020 project “NanoSolveIT”. KW - HAXPES KW - XPS KW - SEM KW - Fe3O4 KW - Nanoparticles PY - 2023 DO - https://doi.org/10.5281/zenodo.7990301 PB - Zenodo CY - Geneva AN - OPUS4-57764 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Knigge, Xenia A1 - Radnik, Jörg T1 - Physico-chemical characterization of sterile ZnO nanoparticles by XPS / HAXPES / SEM N2 - Here a dataset of XPS, HAXPES and SEM measurements for the physico-chemical characterization of ZnO nanoparticles is presented. The measurements are part of the H2020 project “NanoSolveIT”. KW - HAXPES KW - XPS KW - SEM KW - Nanoparticles KW - ZnO PY - 2023 DO - https://doi.org/10.5281/zenodo.7990213 PB - Zenodo CY - Geneva AN - OPUS4-57762 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -