TY - CONF A1 - Hodoroaba, Vasile-Dan T1 - SEM/EDS as THE Versatile and Powerful Tool for Micro and Nano Analysis N2 - The basic principles of generation of electrons and X-rays and the operation of SEM/EDS instruments are presented. Examples, recent successes and challenges in the analysis of nano-structures are given. Multi-method analytical approaches with the focus on imaging the nanoscale are highlighted. Details on the sample preparation and persepective on the automated analysis (sample preparation, measurement, data analyis and storage) are given. Metrological aspects, standardisation, and reference materials are also emphasized by examples. T2 - Training Course Metrological Determination of Micro and Nano Contaminants in Food CY - Berne, Switzerland DA - 05.09.2023 KW - SEM KW - EDS KW - Microanalysis KW - Nanoanalysis KW - Imaging PY - 2023 UR - https://www.sem.admin.ch/metas/en/home/dl/kurs_uebersicht/micro_nano_contaminants_in_food.html AN - OPUS4-58188 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hodoroaba, Vasile-Dan T1 - VAMAS Regional Workshop in Germany N2 - An overview on the VAMAS technical working areas (TWA) and projects where Germany is active has been given. The role of VAMAS as an international pre-standardisation platform, including its intense collaboration with international bodies ISO, CEN, OECD and CCQM and national organizations like DIN has been highlighted. T2 - VAMAS Regional Workshop 2023 - What can pre-normative research do for industry? CY - Online meeting DA - 24.01.2023 KW - VAMAS KW - Advanced materials KW - Inter-laboratory comparisons KW - Regional workshop PY - 2023 UR - https://www.bam-akademie.de/kursangebot/kurs/vamas-regional-workshop-2023-23.html?lang=en AN - OPUS4-57281 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hodoroaba, Vasile-Dan T1 - (Pre)Standardisation and Metrology in Microbeam Analysis – Ongoing Activities and Opportunities N2 - The presentation addresses the current ongoing projects as well as the gaps and opportunities in microbeam analysis within ISO/TC 202 Microbeam Analysis standardisation body and in-liaison Technical Working Areas (TWAs) at the pre-standardization platform of VAMAS (Versailles Project on Advanced Materials and Standards). T2 - EMAS 2023 - 17th European Workshop on Modern Developmennts and Applications in Microbeam Analysis - General Assembly CY - Krakow, Poland DA - 07.05.2023 KW - Microbeam analysis KW - EDS KW - Electron microscopy KW - Inter-laboratory comparison KW - EBSD KW - Standardisation PY - 2023 AN - OPUS4-57483 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hodoroaba, Vasile-Dan T1 - VAMAS interlaboratory comparisons on nanoparticles associated with the outcomes of the EMPIR project nPSize N2 - Following points are presented and discussed: i) nPSize as an EMPIR project on the nanoparticle size and shape distribution of (more) complex particles including sample preparation and machine learning approaches; ii) parallel development of ISO 21363 (PSSD by TEM), ISO 19749 (PSSD by SEM), ISO 22292 (3D TEM), ISO 52408 (NP Prep for AFM and EM), iii) VAMAS and pre-standardisation, TWA 34 „Nanoparticle Populations“ with two nPSize ILC projects P15 & P16 – results to be published and integrated in ISO 21363 (PSSD by TEM); iv) Remaining challenges: platelets, 2D materials (TiO2 and GR2M); v) Reference data sets as part of a complete Characterisation Workflow. T2 - How to identify Nanomaterials more effectively? Good Practices and Ways to Progress CY - Paris, France DA - 11.05.2023 KW - Nanoparticles KW - VAMAS KW - nPSize KW - Particle size distribution KW - Nanoparticle concentration KW - Interlaboratory comparison PY - 2023 UR - https://www.lne.fr/fr/service/formation/journee-technique-nanomateriaux-comment-identifier-efficacement-nanomateriaux?utm_source=Twitter&utm_medium=Tweet&utm_campaign=JT2301 AN - OPUS4-57485 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hodoroaba, Vasile-Dan T1 - Transmission and Scanning Electron Microscopy (SEM/TEM) N2 - Die Bestimmung der Nanopartikelgrößen- und -formverteilung nach OECD TG 125 mit der Transmission and Scanning Electron Microscopy (SEM/TEM) wird punktuell vorgestellt: - Generelles Messprinzip - Beispiele - Korrelative Mikroskopie - Welchen Durchmesser misst die Methode? - Welche Partikel kann diese Methode messen? - Welche Informationen kann diese Methode liefern? - Wo stößt die Methode an ihre Grenzen? - Implementierung und Datenauswertung, - Reporting. Anschließend wurde eine Q&A-Session für die Imaging-Methoden organisiert. T2 - Digital Info-Days „Nano or not Nano“ - Measuring according to OECD Test Guideline No. 125 CY - Online meeting DA - 16.02.2023 KW - Nanoparticles KW - OECD TG 125 KW - Partikelgrößenverteilung KW - Elektronenmikroskopie PY - 2023 UR - https://www.bam-akademie.de/kursangebot/kurs/digitale-info-tage-%E2%80%9Enano-or-not-nano%E2%80%9C-19.html AN - OPUS4-57217 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Heilmann, Maria A1 - Hodoroaba, Vasile-Dan T1 - Project 15 Measurement of particle size and shape distribution of bipyramidal titania including deposition from liquid suspension N2 - The progress in the VAMAS Project #15" Measurement of particle size and shape distribution of bipyramidal titania including deposition from liquid suspension" within TWA 34 Nanoparticle Populations is presented with highlight of the following points: - Determine and compare particle size and shape distribution by means of: • electron microscopy (SEM, TEM, STEM-in-SEM) • atomic force microscopy (AFM) • small angle X-ray scattering (SAXS) - Determine uncertainty induced by deposition protocol from liquid suspension with comparison to known values from a prior ILC with already deposited nanoparticles on TEM grids. - Provide comparative validation of protocols for the techniques other than TEM. T2 - VAMAS Regional Workshop 2023 CY - Online meeting DA - 24.01.2023 KW - Nanoparticles KW - VAMAS KW - Electron microscopy KW - AFM KW - SAXS KW - TiO2 PY - 2023 UR - https://www.bam.de/Content/EN/Events/2023/2023-01-24-vamas-regional-workshop.html AN - OPUS4-57220 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Heilmann, Maria A1 - Hodoroaba, Vasile-Dan T1 - Project 16 Measurement of (relative) number concentration of bimodal silica nanoparticles including deposition from liquid suspension N2 - The progress of the VAMAS Project 16 "Measurement of (relative) number concentration of bimodal silica nanoparticles including deposition from liquid suspension" in TWA 34 Nanoparticle Populations is presented. Follwowing points are discusssed: - Validate the performance of imaging methods to measure the relative number concentration • electron microscopy (SEM, TEM) and atomic force microscopy (AFM) • two modes of bimodal (30 and 60 nm) silica nanoparticles - Validate the performance of small angle X-ray scattering (SAXS) for the traceable measurement of the number concentration of the two modes. T2 - VAMAS Regional Workshop 2023 - What can pre-normative research do for industry? CY - Online meeting DA - 24.01.2023 KW - Nanoparticles KW - VAMAS KW - Inter-laboratory comparison KW - SiO2 KW - Electron microscopy KW - AFM PY - 2023 UR - https://www.bam.de/Content/EN/Events/2023/2023-01-24-vamas-regional-workshop.html AN - OPUS4-57221 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Altmann, Korinna A1 - Hodoroaba, Vasile-Dan A1 - Braun, U. T1 - CUSP inter-laboratory comparisons N2 - In this breakout session first, an introduction is given on the planning and organisation of an inter-laboratory comparison (ILC) under the pre-standardisation plattform VAMAS within the newly formed technical working area TWA 45 Micro and Nano Plastics in the Environment. An update with the ILCs on micro- and nanoplastic performed so far is also given. In the third part, the requirements for a reference materials are presented. The needs from the different H2020 micro- and nanoplastic projects are collected and compiled in an ILC matrix for joint activities as the next steps. T2 - The European Research Cluster to Understand the Health Impact of Micro- and Nanoplastics (CUSP) Launching Event CY - Online meeting DA - 10.06.2021 KW - Microplastic KW - Nanoplastic KW - Inter-laboratory comparison KW - VAMAS KW - Reference material PY - 2021 AN - OPUS4-52808 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hodoroaba, Vasile-Dan A1 - Giovannozzi, A. M. A1 - Ciornii, Dmitri A1 - Altmann, Korinna T1 - Micro and Nano Plastics in the Environment N2 - The VAMAS/TWA 45 Project 2 “Development of standardized methodologies for characterisation of microplastics with microscopy and spectroscopy methods” involving 85 participants around the world is primarily discussed with respect to the results received and a first data evaluation. Status of the Project "Guidelines for defining reference materials for plastic degradation in marine environment" is reported and two new project proposals are presented: "Development of standardized methodologies for characterisation of nanoplastics (starting soon, BAM as leader?) and "Development of analytical protocols for the identification and quantification of microplastics of fibrous shape (still in negotiation)". T2 - Versailles Project on Advanced Materials and Standards (VAMAS) 48th Steering Committee Meeting CY - New Delhi, India DA - 09.10.2023 KW - Microplastics KW - Nanoplastics KW - Interlaboratory comparison KW - VAMAS KW - Reference materials KW - ISO PY - 2023 UR - https://www.nplindia.org/index.php/amcsnzt_2023/ AN - OPUS4-58539 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hodoroaba, Vasile-Dan A1 - Salzmann, Christoph A1 - Heilmann, Maria T1 - Ongoing VAMAS interlaboratory comparisons on nanoparticles size and shape as pre standardisation projects for harmonized measurements N2 - Traceable morphological and chemical characterization of nanomaterials with respect to the various possible sizes, size distributions, shapes, and concentrations of real-world nanoparticles (NPs) is a challenging task. Particularly for the nonspherical, non-monodisperse nanoparticles – as typically for most of the commercial particles, including their strong tendency to agglomerate, there is a lack of standard operation procedures providing accurate nanoparticle characterisation. In the framework of the pre-standardisation framework of VAMAS (Versailles Project on Advanced Materials and Standards, www.vamas.org) two interlaboratory comparison (ILC) studies are being carried out under the Technical Working Area (TWA) 34 “Nanoparticle Populations”:i) Project #15 addresses the analysis of the size and shape distribution of TiO2 bipyramidal NPs by traceable imaging methods such as TEM, SEM, STEM-in-SEM, AFM as well as with SAXS as an ensemble method. This ILC is thought as the next level development of the case studies exemplified in the published ISO standards ISO 21363 and ISO 19749. It was agreed to complete the first ILC with the NPs already prepared according to the same procedure on a TEM grid, and, at a later stage, to carry out second ILCs with the same NPs distributed to the participants as liquid suspensions together with protocols for the uniform NP deposition on suited substrates - as developed and optimized within the European project nPSize. Once having good deposition protocols available, the door for automated image analysis gets opened. Corresponding image analysis protocols and reporting templates have been distributed to the ILC participants, too. ii) Project #16: two spherical SiO2 NP samples with bi-modal size distributions in two nominal relative number concentrations were prepared and distributed also as liquid suspensions accompanied by sample preparation, measurement, and image analysis protocols and reporting templates. Here, the NP concentration is the primary parameter to be measured. For the imaging methods it is targeted to measure the relative nanoparticle concentrations (relative populations of the two modes). The results of all the participating laboratories, in both ILCs, compiled in comparative representations will be shown and discussed for the first time. The reduction of the measurement uncertainties associated to the size, shape and number-concentration results induced by the significant improvement of the sample preparation on substrates (as single particles with a high-density coverage), combined with welldefined image analysis procedures will be highlighted. T2 - 2024 Spring Meeting of the European Materials Research Society (E-MRS) CY - Strasbourg, France DA - 27.05.2024 KW - VAMAS KW - Interlaboratory comparison KW - Electron microscopy KW - Particle size distribution KW - Article concentration PY - 2024 AN - OPUS4-60184 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -