Nano
Filtern
Dokumenttyp
- Vortrag (338) (entfernen)
Sprache
- Englisch (293)
- Deutsch (42)
- Spanisch (2)
- Mehrsprachig (1)
Referierte Publikation
- nein (338)
Schlagworte
- Nanoparticles (41)
- VAMAS (29)
- Nano (28)
- Laser-induced periodic surface structures (LIPSS) (21)
- X-ray scattering (21)
- Electron microscopy (19)
- Fluorescence (16)
- Interlaboratory comparison (16)
- Particle size distribution (16)
- Quantum yield (15)
- Dye (14)
- Quality assurance (14)
- Standardisation (14)
- Nanomaterial (13)
- SAXS (13)
- MOUSE (12)
- Reference materials (12)
- Nanomaterials (11)
- Surface functionalization (11)
- X-ray photoelectron spectroscopy (11)
- XPS (11)
- Functionalized graphene (10)
- Lifetime (10)
- Nanoparticle (10)
- Reference material (10)
- SEM (10)
- Traceability (10)
- Conductivity (9)
- Ellipsometry (9)
- Graphene (9)
- Particle (9)
- Femtosecond laser (8)
- Inter-laboratory comparison (8)
- Method (8)
- Metrology (8)
- Nanocomposites (8)
- Sample preparation (8)
- AFM (7)
- EBSD (7)
- Imaging (7)
- Integrating sphere spectroscopy (7)
- Luminescence (7)
- Photoluminescence (7)
- Photophysics (7)
- Quantum dot (7)
- Quantum dots (7)
- Small angle scattering (7)
- Surface analysis (7)
- Boehmite (6)
- HAXPES (6)
- Lab automation (6)
- Methodology (6)
- NIR (6)
- OECD (6)
- Optical spectroscopy (6)
- Particle size (6)
- Quantitative spectroscopy (6)
- Scattering (6)
- Standardization (6)
- Thin films (6)
- Uncertainty (6)
- EDS (5)
- FIB (5)
- Geant4 (5)
- Ionic Liquid crystals (5)
- Lanthanide (5)
- MCS (5)
- Measurement uncertainty (5)
- Nanoconfinement (5)
- Nanocrystal (5)
- Oxygen evolution reaction (5)
- Quantification (5)
- Reference data (5)
- Rigid amorphous fraction (5)
- SWIR (5)
- Spectroscopic ellipsometry (5)
- Surface chemistry (5)
- 2D materials (4)
- Advanced Materials (4)
- Automation (4)
- BDS (4)
- Calibration (4)
- Data stewardship (4)
- Dynamics (4)
- Fast Scanning Calorimetry (4)
- Femtosecond laser ablation (4)
- Geant4-DNA (4)
- Glass transition (4)
- ISO/TC 202 (4)
- Mesoporous iridium oxide films (4)
- Microbeam analysis (4)
- Nano powder (4)
- Nano@BAM (4)
- Nanocomposite (4)
- Nanoelectronics (4)
- Nanopartikel (4)
- Nanostructure (4)
- Non-destructive operando analysis (4)
- Oxidation (4)
- Risk assessment (4)
- Semiconductor quantum dot (4)
- Silica (4)
- Simulation (4)
- Size (4)
- Standard (4)
- Synthesis (4)
- TMDSC (4)
- Upconversion (4)
- VSSA (4)
- Adsorbed Layer (3)
- Assay (3)
- Characterization (3)
- Core-shell nanoparticles (3)
- Correlative imaging (3)
- Electromagnetic scattering (3)
- Electron Microscopy (3)
- Flash DSC (3)
- ISO/TC 229 (3)
- Introduction (3)
- Knowledge Readiness Level (3)
- Laboratory management (3)
- Linearity (3)
- Method comparison (3)
- Microbeam Analysis (3)
- Monte Carlo (3)
- Monte-Carlo simulations (3)
- Nano particle (3)
- Nanomaterialien (3)
- Nanoparticle concentration (3)
- Nanosafety (3)
- Optical assays (3)
- Particle scattering simulations (3)
- Polymer (3)
- Prüfrichtlinie (3)
- Sensing (3)
- Sensor (3)
- Software (3)
- Strategic Research Agenda (SRA) (3)
- ToF-SIMS (3)
- Topas (3)
- Upconversion nanocrystal (3)
- Upconversion nanoparticle (3)
- Validation (3)
- nPSize (3)
- 3D (2)
- Advanced manufacturing (2)
- Advanced materials (2)
- Analysis (2)
- Applications (2)
- Atomic Force Microscopy (2)
- Automated synthesis (2)
- Brightness (2)
- Broadband dielectric spectroscopy (2)
- Bundesoberbehörden (2)
- CEN/TC 352 Nanotechnologies (2)
- CLS (2)
- Calcium sulfate (2)
- Capillary waves (2)
- Cathodoluminescence (2)
- Chemical composition (2)
- Cleavable probe (2)
- Commercial graphene (2)
- Conductometry (2)
- Correlative Imaging (2)
- Correlative analysis (2)
- Cycloalyphatic epoxy oligosiloxane (2)
- Data (2)
- Data organization (2)
- Desintegracion radioactiva (2)
- Diagnosis (2)
- Dielectric Spectroscopy (2)
- Dosimetry (2)
- EC4SafeNano (2)
- EMPIR (2)
- EMPIR 18HLT01 MetVesII (2)
- Ectrocatalysis (2)
- Elastomers (2)
- Elektronenmikroskopie (2)
- Epoxy (2)
- European Metrology Network (EMN) (2)
- Extracellular vesicles (EV) (2)
- Femtosecond laser processing (2)
- Flow cytometry (FCM) (2)
- Fluorescence standard (2)
- Fluorescent particles (2)
- Fourier transforms (2)
- Friction (2)
- Glass (2)
- Graphene inks (2)
- Graphene oxide (2)
- Graphene oxide flakes (2)
- Graphene related 2D materials (2)
- Growth Kinetics (2)
- Holistic experimental procedures (2)
- Holistic experimentation (2)
- Holistic science (2)
- ISO (2)
- ISO/TC 229 Nanotechnologies (2)
- InP (2)
- Indium phosphide (2)
- Industrial applications (2)
- Instrument calibration (2)
- Instrumentation (2)
- Interfaces (2)
- Interlaboratory Comparison (2)
- Interlaboratory Comparisons (2)
- Korrosion (2)
- Laboratory automation (2)
- Laser processing (2)
- Laser-induced periodic surface structures, LIPSS (2)
- Machine learning (2)
- Method validation (2)
- Micro- and nanoplastics (2)
- Microanalysis (2)
- Microdosimetry (2)
- Microscopy (2)
- Microstructure (2)
- Multiphoton lithography (2)
- Multiplexing (2)
- Método de Montecarlo (2)
- Nano- and microsensors (2)
- Nano-powder (2)
- Nanocharacterisation (2)
- Nanofasern (2)
- Nanopipettes (2)
- Nanoplastic (2)
- Nanoplastics (2)
- Nanopulver (2)
- Nanotechnology (2)
- OECD TG 124 (2)
- Oberflächenfunktionalisierung (2)
- Optical assay (2)
- Orientation (2)
- Particle scattering simulation (2)
- Particle surface analysis (2)
- Partikel (2)
- Partikelgrößenverteilung (2)
- Performance validation (2)
- Processing (2)
- Protein (2)
- Quantitative NMR (2)
- Quantum yields (2)
- Radioactive decay (2)
- Radioactive nanoparticle (2)
- Raman (2)
- Ratiometric sensors (2)
- Reference product (2)
- Regulation (2)
- Reliability (2)
- Reproducibility (2)
- Reproducibility crisis (2)
- Robotics (2)
- SAXS/WAXS (2)
- SOP (2)
- Scicat (2)
- Sensor molecules (2)
- SiO2 (2)
- Single particle spectroscopy (2)
- Size distribution (2)
- Small-angle X-ray scattering (2)
- Spectroscopic imaging ellipsometry (2)
- Spectroscopy (2)
- Standardisierung (2)
- Surface (2)
- Surface Analysis (2)
- Surface Group Analysis (2)
- Surface group analysis (2)
- Surface group quantification (2)
- Surfaces (2)
- Synchrotron (2)
- TEM (2)
- Test material (2)
- Thin Films (2)
- TiO2 (2)
- Titania nanoparticles (2)
- Titanium alloy (2)
- Transmission electron microscopy (2)
- Transparent Conductive Oxides (2)
- Ultrafast laser processing (2)
- WAXS (2)
- Wear (2)
- White light interference microscopy (2)
- X-ray Photoelectron Spectroscopy (2)
- nanoparticula (2)
- pH sensing (2)
- 100Cr6 (1)
- 2D flakes (1)
- 3d structuring (1)
- AFM based test methods (1)
- AFM-IR (1)
- AFM-Kraft-Abstand-Kurven (1)
- AIS (1)
- Absolute measurement (1)
- Absorption (1)
- Achsschenkel (1)
- Additiv (1)
- Additive (1)
- Additive manufacturing (1)
- Advanced Manufacturing (1)
- Agglomerates (1)
- Aging (1)
- Alloy 36 (1)
- Aluminium alloy (1)
- Amorphous silica particles (1)
- Analytical chemistry (1)
- Analytical methods (1)
- Analytical sciences (1)
- Analytische Zentrifuge (1)
- Anisotropy (1)
- Antibakterielle Oberflächen (1)
- Antioxydant (1)
- Application (1)
- Article concentration (1)
- Artificial Intelligence (1)
- Atomic force microscopy (1)
- Au nanodisks (1)
- Au nanoparticles (1)
- AuNP (1)
- Auger electron spectroscopy (1)
- Automated Image Analysis (1)
- Automated analysis (1)
- Automated assay (1)
- Autonomous Materials Discovery (1)
- BAM Academy (1)
- BET (1)
- BMU (1)
- Bacteria repellent surfaces (1)
- Bacterial adhesion (1)
- Bacterial adhesion tests (1)
- Barcoding (1)
- Base damage (1)
- Base loss (1)
- Bead (1)
- Bessel-Strahlen (1)
- Bimodal (1)
- Bio-based concrete (1)
- Biofilm formation (1)
- Biofilm growth (1)
- Biofilme (1)
- Brownsche Molekularbewegung (1)
- Bruchmechanische Auslegung (1)
- Böhmit (1)
- C++ (1)
- CE-ICP-MS (1)
- Cancer (1)
- Cancer treatment (1)
- Case studies (1)
- Catalogue of Services (CoS) (1)
- Causes leading to scientific misconduct (1)
- Cell (1)
- Cement (1)
- Certification (1)
- Certified Referencematerial (1)
- Certified reference materials (1)
- Cetrifugal Liquid Sedimentation CLS (1)
- Chemical admixtures (1)
- Chemical analysis (1)
- Chemometric analysis (1)
- Cleavable probes (1)
- Cmake (1)
- Coating (1)
- Coatings (1)
- Comparison (1)
- Complementary methods (1)
- Computed tomography (1)
- Computertomographie (1)
- Contact resonance (1)
- Converter marterial (1)
- Core-shell nanoparticle (1)
- Core-shell structures (1)
- Core/shell nanoparticle (1)
- Correlative Spectroscopy (1)
- Corrosion (1)
- Cr(III) complex (1)
- Critical strain (1)
- Crystallization (1)
- Cubical Iron Oxide (1)
- Curing (1)
- Curve fitting (1)
- Cytotoxicity (1)
- DLS (1)
- DMAS (1)
- DNA (1)
- DNA radiation damage (1)
- DNA structures (1)
- DSC (1)
- Data Fusion (1)
- Data Management (1)
- Data analysis (1)
- Data analysis round robin (1)
- Data catalog (1)
- Data corrections (1)
- Data curation (1)
- Data management (1)
- Data manipulation (1)
- Data pipelines (1)
- Data processing (1)
- Data provenance (1)
- Data stewartship (1)
- Data visualisation (1)
- Databases (1)
- Datenfusion (1)
- Debian (1)
- Defect Analysis (1)
- Demonstration (1)
- Density (1)
- Depth profiling (1)
- Diclofenac (1)
- Differential scanning calorimetry (1)
- Diffraction (1)
- Digital laboratory (1)
- Digitalisation (1)
- Digitalisierung (1)
- Digitalization (1)
- Diopside (1)
- Direct damage (1)
- Dispersion process (1)
- Dissociative electron attachment (DEA) (1)
- Dissociative electron transfer (DET) (1)
- Doping (1)
- Double-strand break (DSB) (1)
- Durability (1)
- Dyad molecules (1)
- Dye labeling (1)
- Dünne Schichten (1)
- E. coli (1)
- EDS-TM002 (1)
- EDX (1)
- EPMA (1)
- ESCA (1)
- EU (1)
- Elastomer (1)
- Electrical Paramters (1)
- Electrical Properties (1)
- Electrical properties (1)
- Electrical thin layers (1)
- Electrocatalysis (1)
- Electrocatalytic Water Splitting (1)
- Electrochemical Titration (1)
- Electromagnetic radiation (1)
- Electron Probe Microanalysis (1)
- Electrospun fibers (1)
- Elektronisches Laborbuch (1)
- Ellipsometric porosimetry (1)
- Ellipsometrie (1)
- Encoding (1)
- Endpoints (1)
- Energiedissipation im Kontakt (1)
- Energy deposit (1)
- Energy dispersive X-ray spectroscopy (1)
- Energy materials (1)
- Energy transfer (1)
- Engineered Nanomaterials (1)
- Engineered nanomaterials (1)
- Epoxy nanocomposites (1)
- Epoxy-Anhydrid Duroplast (1)
- European Centre (1)
- European Metrology Networks (EMNs) (1)
- Experiment tracking (1)
- Experimental traceability (1)
- Extracellualr vesicles (1)
- FAIR (1)
- Fail-safe (1)
- FeNi nanoparticles (1)
- Field of view (1)
- Finite-difference time-domain calculations (1)
- Finite-difference time-domain calculations (FDTD) (1)
- Fityk (1)
- Flame retardant (1)
- Flow cytometry (1)
- Fluorescence microscopy (1)
- Fluorescence quantum yield (1)
- Fluorescent glasses (1)
- Fluorescent indicator (1)
- Focused Ion Beam (1)
- Force distance curve (1)
- Forschungsstrategie (1)
- Fourier Transform (1)
- Free electron laser (1)
- Free electron laser (FEL) (1)
- Functionalized Nanomaterials (1)
- Functionalized nano- and microparticles (1)
- Functionalized silica and polymeric particles (1)
- G5P (1)
- Gallium doping (1)
- Git (1)
- Glow-discharge optical emission spectroscopy (1)
- Glue (1)
- Gold (1)
- Granulometrie (1)
- Graphene funcionalisation (1)
- Graphene powder (1)
- Graphene related materials (1)
- Grenzfläche als Material (1)
- Größe (1)
- Größenbestimmung (1)
- Guideline (1)
- HEA (1)
- Halloysite nanotubes (1)
- Hard X-ray photoelectron spectroscopy (1)
- Hard X-ray photoelectron spectroscopy (HAXPES) (1)
- Hard-energy X-ray photoelectron spectroscopy (1)
- High resolution (1)
- High-resolution transmission electron microscopy (1)
- High-throughput (1)
- High-throughput measurements (1)
- History (1)
- Holistic experiment approaches (1)
- Homogeneous deposition (1)
- Hybrid metrology (1)
- Hydrated DNA (1)
- Hydrated electron (1)
- Hydration shell (1)
- Hydrodynamics (1)
- Hydrogen Generation (1)
- Hydroxyl radical (1)
- Hygiene (1)
- Hyperspectral imaging (1)
- ICP-MS (1)
- ILC (1)
- IR (1)
- ISO/TC 201 (1)
- ISO/TC229 (1)
- ISOGScope (1)
- ImAFM (1)
- Image Segmentation (1)
- Image analysis (1)
- Image manipulation (1)
- Imaging Ellipsometry (1)
- Imaging ellipsometry (1)
- In situ Atomic Force Microscopy (AFM) (1)
- Indirect damage (1)
- Instrument automation (1)
- Instrumentation utilization (1)
- Inter-laboratory comparisons (1)
- Intercomparability (1)
- Interlaboratory (1)
- Interlaboratory comparisons (1)
- Interpenetrating polymer network (1)
- Ionic liquid (1)
- Ionisation (1)
- Ionization (1)
- Iridium oxide (1)
- Iron oxide nanoparticles (1)
- JNP (1)
- Kerbschlagarbeit (1)
- Knowledge (1)
- Korrelation (1)
- Kunststoff (1)
- LEE (1)
- LIPSS (1)
- LLG (1)
- Laboratory methodology (1)
- Large number of participants (1)
- Laser Metal Deposition (LMD) (1)
- Laser ablation (1)
- Laser technology (1)
- Laser-Materialbearbeitung (1)
- Laser-induced Periodic Surface Structures (LIPSS) (1)
- Laser-induced amorphization (1)
- Laser-induced periodic surface structueres (LIPPS) (1)
- Laser-induced periodic surface structures (1)
- Laser-induzierte periodische Oberflächen-Nanostrukturen (1)
- Laser-induzierte periodische Oberflächenstrukturen (1)
- Lateral dimensions (1)
- Latex (1)
- Layer Materials (1)
- Layer system (1)
- Leichtbau (1)
- Lichtstreuung (1)
- Life sciences (1)
- Ligand (1)
- Ligand quantification (1)
- Ligands (1)
- Linux (1)
- Low energy electrons (1)
- Lubricant additives (1)
- Lubricants (1)
- Lubrication (1)
- Machine Learning (1)
- Magnetic nanoparticle (1)
- Mass spectrometry (1)
- Materials and Processes Data Reusability (1)
- Matter reorganization (1)
- McSAS3 (1)
- Measurement science (1)
- Mesoporous (1)
- Mesoporous Materials (1)
- Mesoporous iridium-titanium mixed oxides (1)
- Metadata (1)
- Metadata collection (1)
- Metadata structuring (1)
- Metal organic frameworks (1)
- Metal-organic frameworks (1)
- Method development (1)
- Methodology development (1)
- Methos comparision (1)
- Metrics (1)
- Metrological traceability (1)
- Micro- and Nanoplastics (1)
- Microfluidics (1)
- Micromagnetism (1)
- Micropatterning (1)
- Microplastic reference materials (1)
- Microprinting (1)
- Mie resonances (1)
- Mikrostrukturen (1)
- Modelling (1)
- Molecular Mobility (1)
- Molecularly Imprinted Polymers (1)
- Monte-Carlo simulation (1)
- Morphology (1)
- Multi-scale (1)
- Multicolored (1)
- Multifunctional nanoparticles (1)
- Multiphoton Lithography (1)
- Multiphoton laser structuring (1)
- Mussel inspired materials (1)
- NAP-XPS (1)
- NFDI (1)
- NMR (1)
- Nano Characterisation (1)
- Nano characterization (1)
- Nano material (1)
- Nano screening (1)
- Nano-related data (1)
- Nano-risk assessment (1)
- NanoSolveIT (1)
- Nanoanalysis (1)
- Nanoanalytics (1)
- Nanocarrier (1)
- Nanokomposit (1)
- Nanomaterial properties (1)
- Nanoparticles Synthesis and Characterization (1)
- Nanoplattform (1)
- Nanorisk (1)
- Nanorisk Governance (1)
- Nanosafety services (1)
- Nanoscale (1)
- Nanoscale luminescent reporters (1)
- Nanoscale measurements (1)
- Nanosilver (1)
- Nanostructural analysis (1)
- Nanostructure investigation (1)
- Nanostructure quantification (1)
- Nanostructures (1)
- Nanostrukturen (1)
- Nanotechnologie (1)
- Nanotoxicity (1)
- Native oxide layer (1)
- Natural rubber (1)
- Near ambient pressure xray photo electron spectroscopy (1)
- Net-ionization reaction (1)
- Neuartige Materialien (1)
- Neural Networks (1)
- Next Generation Sequencing (1)
- Nichtrostender Stahl (1)
- Niobium (1)
- Nnano particle (1)
- Noble metal nanoparticles (1)
- Non-spherical shape (1)
- Normung (1)
- Nucleation (1)
- OECD TG (1)
- OECD TG 125 (1)
- OH radical (1)
- OOMMF (1)
- Oberflächenanalytik (1)
- Oberflächenintegrität (1)
- Oberflächenmesstechnik (1)
- Oberflächenmodifikation (1)
- Oberflächenpotential (1)
- Oberflächensteifigkeit (1)
- Ontologies (1)
- Operating Procedure (1)
- Optical Spectroscopy (1)
- Optical flow (1)
- Optical measurements (1)
- Optical probes (1)
- Optical scattering (1)
- Oxygen (1)
- Oxygen sensing (1)
- PAG (1)
- PC characterisation (1)
- PEG (1)
- PES (1)
- PH probe (1)
- Paint (1)
- Paper mills (1)
- Parameter correlation. (1)
- Participatory Approach (1)
- Particle Synthesis (1)
- Particle number concentration (1)
- Particle scattering (1)
- Particle sensors (1)
- Particle size determination (1)
- Particle, imaging (1)
- Partikeldurchmesser (1)
- Partikelgröße (1)
- Partikelgrößenbestimmung (1)
- Partikelkonzentration (1)
- Passivation shell (1)
- Peptide Library (1)
- Peptides (1)
- Performance check (1)
- Phage Display (1)
- Phase transitions (1)
- Phosphor (1)
- Photocuring (1)
- Photodynamic therapy (1)
- Photon bunching (1)
- Photoresist (1)
- Pigments (1)
- Pitfalls (1)
- Plastic reference materials (1)
- Plastikstrategie (1)
- Pollutant (1)
- Polydopamine (1)
- Polyethylene Glycol (1)
- Polymer blends (1)
- Polymer foils (1)
- Polymer nanocomposites (1)
- Polysaccharides (1)
- Porosity (1)
- Power Electronics (1)
- Power electronics (1)
- Practical aspects (1)
- Pre-standardisation (1)
- Prehydrated electron (1)
- Preparation (1)
- Presolvated electron (1)
- Probe (1)
- Prürfrichtlinie (1)
- Pump-probe (1)
- Pycnometry (1)
- Quality assurcance (1)
- Quality control (1)
- Quantum Yields (1)
- Quarzglas (1)
- Quasi-direct damage (1)
- REACH (1)
- ROS (1)
- Radiation damage (1)
- Radiation therapy (1)
- Radical (1)
- Radioactive NP (1)
- Radiolysis (1)
- Radiotherapy (1)
- Reactive oxygen species (1)
- Recycling (1)
- Recycling-by-design (1)
- Reference methods (1)
- Reference procedures (1)
- Reference products (1)
- Reference standards (1)
- Referenzdaten (1)
- Regional workshop (1)
- Reibungsreduktion (1)
- Reinforcement (1)
- Release kinetics (1)
- Reliabiilty (1)
- Research Data Management (1)
- Rheology (1)
- Risk Governance (1)
- Risstrajektorie (1)
- Robotic synthesis (1)
- Robotic-supported synthesis (1)
- Round robin (1)
- Rreference material (1)
- Rubber (1)
- Röntgenrefraktion (1)
- SDLs (1)
- SIMS (1)
- SKPM (1)
- SMPS (1)
- STEM-in-SEM (TSEM) (1)
- Saccharide sensing (1)
- Safe-by-Design (1)
- Safe-by-design (1)
- Safety (1)
- Sample peparation (1)
- Saphir (1)
- Saxs (1)
- Scannig probe microscope (1)
- Scanning Electron Microscopy (1)
- Scanning Kelvin Probe Force Microscopy (SKPFM) (1)
- Scanning Probe methods (1)
- Scanning probe measurements (1)
- Schmiermittel (1)
- Scientific misconduct (1)
- Screening (1)
- Self-driving Labs (1)
- Semantic Interoperability (1)
- Semiconductor materials (1)
- Semiconductur (1)
- Sensors (1)
- Shape (1)
- Silane (1)
- Silica and Polystyrene Particles (1)
- Silica and polystyrene nanoparticles (1)
- Silica particles (1)
- Silicon (1)
- Silicon nanoparticles (1)
- Simulations (1)
- Single cell-ICP-ToF-MS (1)
- Single particle (1)
- Single particle-ICP-ToF-MS (1)
- Single-particle measurements (1)
- Single-strand break (SSB) (1)
- Single-stranded DNA-binding proteins (1)
- Small-Angle X-ray Scattering (1)
- Small-angle scattering (1)
- Small-angle x-ray scattering (1)
- Small-area XPS (1)
- Speciation analysis (1)
- Specific surface (1)
- Spektroskopie (1)
- Spezifische Oberfläche (1)
- Stability (1)
- Stakeholder (1)
- Standardarbeitsanweisung (1)
- Standardarbeitsanweisungen (1)
- Standardized check (1)
- Standards (1)
- Strain measurement (1)
- Structural characterisation (1)
- Superconductivity (1)
- Surface Analytics (1)
- Surface Modification (1)
- Surface functional group quantification (1)
- Surface group (1)
- Surface modification (1)
- Surface modified nano- and microparticles (1)
- Surface morphology (1)
- Surface morphology and chemistry (1)
- Surface oxidation (1)
- Sustainability (1)
- Sustainable-by-Design (1)
- Synthesis library (1)
- TGA (1)
- TMDCs (1)
- TOPAS (1)
- TOPAS-nbio (1)
- Terminal functional groups (1)
- Test guideline (1)
- Theoretical modelling (1)
- Theranostics (1)
- Thermogravimetry (1)
- Thin Layers (1)
- Thin film analysis (1)
- Thin polymer films (1)
- Ti6Al4V alloy (1)
- TiAl64V (1)
- Time of Flight - Secondary ion mass spectrometry (1)
- Time-of-Flight Secondary Ion Mass Spectrometry (1)
- Time-of-flight secondary ion mass spectrometry (ToF-SIMS) (1)
- Time-resolved analysis (1)
- Time-resolved coherent scattering (1)
- Time-resolved scattering (1)
- Titania (1)
- Titanium (1)
- Titanium oxide (1)
- Titration (1)
- ToF SIMS (1)
- Tools to combat scientific misconduct (1)
- Topas-nbio (1)
- Transition metal dichalcogenide (1)
- Transmission Kikuchi Diffraction (TKD) (1)
- Transmission electron microscopy (TEM) (1)
- Transparent conductive Oxides (1)
- Trinkwasser (1)
- Two photon polymerisation (1)
- Two-photon polymerisatio (1)
- UV-curing (1)
- Ultrakurzpuls-Laser (1)
- Ultrakurzpuls-Laserbearbeitung (1)
- Ultraschallunterstütztes Fräsen (1)
- Uncertainties (1)
- Upconversion nanoparticles (1)
- Verschleißreduktion (1)
- Viskosität (1)
- Werkstoffe (1)
- White light interferometric microscopy (1)
- Wide-bandgap semiconductors (1)
- Wirksumme (1)
- Workflows (1)
- X-Ray Spectroscopy (1)
- X-ray generation (1)
- X-ray instrumentation (1)
- X-ray spectrometer (1)
- X-ray spectroscopy (1)
- XRD (1)
- XRM (1)
- XUV scattering (1)
- Xray (1)
- Xray photo electron spectrocopy (1)
- attraktive Wechelwirkung (1)
- dispersion (1)
- electron microscopy (1)
- fluorescence standards (1)
- graphene related 2D materials (1)
- pH (1)
- particle size determination (1)
- qNMR (1)
- quality assurcance (1)
- sample preparation (1)
- single cell-ICP-ToF-MS (1)
- single particle-ICP-ToF-MS (1)
- surface group analysis (1)
- synthesis (1)
- Äquivalenzdurchmesser (1)
Organisationseinheit der BAM
- 6 Materialchemie (240)
- 6.1 Oberflächen- und Dünnschichtanalyse (143)
- 1 Analytische Chemie; Referenzmaterialien (63)
- 1.2 Biophotonik (56)
- 6.6 Physik und chemische Analytik der Polymere (38)
- 6.5 Synthese und Streuverfahren nanostrukturierter Materialien (37)
- 6.2 Material- und Oberflächentechnologien (34)
- 5 Werkstofftechnik (24)
- 4 Material und Umwelt (21)
- 5.4 Multimateriale Fertigungsprozesse (17)
Spectral encoding of cells or particles and the discrimination of multiple spectral codes are a critical process in flow cytometry (FCM). Typical issues in spectral encoding are, e.g., the spectral overlap of codes, or the increasing complexity of instruments . The exploitation of the photoluminescence lifetime (LT) as an encoding parameter could be used to circumvent both of these issues, as it adds another dimension to the parameter space, or, when used as a stand-alone parameter, requiring only one excitation light source and one detector. While LT encoding was considered already decades ago it is still not implemented as a routine technique in FCM yet, mainly due to the challenge of very few photons being available within the limited transition time of a cell or particle through the laser spot.
Recently, we demonstrated LT-FCM based on luminophores with ns LTs in a compact and low-cost flow cytometer. Measurements on polymer microbeads containing luminophores with distinctly different excited state LTs enabled the complete discrimination of three LT codes and five codes in total could be identified.
Now, we have extended our approach towards considerably longer LTs by custom-made polymer microbeads loaded with different ratios of InP/ZnS and AgInS2 quantum dots. The use of these materials significantly expands the usable time range for LT encoding to up to several hundred ns. Our studies demonstrate the possibility to further increase the number of viable LT codes for multiplexing in LT-FCM without the need for extensive hardware modifications.
The comparison of different emitter classes and the rational design of the next generation of molecular and nanoscale reporters require accurate and quantitative photo-luminescence measurements. This is of special importance for all photoluminescence applications in the life and material sciences and nanobiophotonics. In the following, procedures for the determination of the spectroscopic key parameter photoluminescence quantum yield, i.e., the number of emitted per absorbed photons, in the UV/vis/NIR/SWIR are presented including pitfalls and achievable uncertainties and material-specific effects related to certain emitter classes are addressed.
New reference material candidates for traceable size measurement of non-spherical nanoparticles
(2019)
New model nanoparticles with well-controlled shape were synthesized within the EMPIR project nPSize - Improved traceability chain of nanoparticle size measurements. Their systematic characterization takes place by the traceable methods scanning/transmission electron microscopy, atomic force microscopy and small angle X-ray scattering. Following reference nanoparticle candidates are under investigation with respect to their homogeneity and stability: titania nanoplatelets (10-15 nm x 50-100 nm), titania bipyramides (~60 nm x 40 nm), titania acicular particles (100 nm x 15-20 nm; aspect ratio 5.5/6), gold nanorods (~10 nm x 30 nm), and gold nanocubes (~55 nm x 55 nm x 55 nm).
New reference material candidates for traceable size measurement of nonspherical nanoparticles
(2019)
Size measurement of nanoparticles (NP) becomes a challenging analytical problem when non-spherical shapes must be traceably measured. However, most industrial NPs have irregular shapes and broad size distribution making it often more complex to follow European regulatory to identify a material as a nanomaterial according to which accurate measurement of the smallest dimension and its size Distribution is necessary.
The European research project nPSize - Improved traceability chain of nanoparticle size measurements aims to fill this gap by developing potential non-spherical reference nanoparticles, measurement procedures and physical modelling to improve the traceability chain, comparability and compatibility for NP size measurements between different methods. Therefore, new model NP with well-controlled shape has been synthesized and are supposed to be systematically characterized using the traceable methods scanning/transmission electron microscopy, atomic force microscopy and small angle X-ray scattering.
Following NP candidates are under investigation with respect to their homogeneity and stability: (i) titania nanoplatelets (10-15 nm thickness x 50-100 nm lateral), (ii) titania bipyramides (~60 nm length x 40 nm width), (iii) titania acicular particles (100 nm length x 15-20 nm width; aspect ratio 5.5/6), (iv) gold nanorods (~10 nm width x 30 nm length), and (v) gold nanocubes (~55 nm x 55 nm x 55 nm). In addition, sample preparation procedures as well as measurement analysis procedures with evaluation of appropriate measurands and descriptors for each material class and method are being developed to support standardization. To underpin the traceability of the size measurement of nonspherical NP, physical modelling of the signals in e.g. electron microscopy techniques will be used and in combination, the implementation of machine learning is aimed to facilitate measurement Analysis procedures, especially regarding the accurate thresholding/segmentation of the NPs.
A look inside nanoparticles
(2019)
Small-angle scattering is the method of choice when it comes to obtaining information about the interior of nanoparticles. The aim is to make nanotechnology safer. While the use of small-angle neutron scattering (SANS) is limited to a few instruments in the world, small-angle X-ray scattering (SAXS) is widely accessible, with an upward trend. The example of core-shell particles shows how simple their analysis is with data from an Anton Paar laboratory system. Here, SAXS is a central tool for the development of new reference materials based on poly(methyl) acrylate-PVDF core-shell particles. The dimensions of the cores and shells can be precisely determined. A detailed analysis makes it possible to show that the cores contain fluorinated and nonfluorinated polymers, whereas the shell consist only of PVDF. This core-shell particles with a diameter around 40 nm show a significantly higher PVDF beta phase content than the PVDF homopolymer when using an emulsion polymerization technique. This finding is of importance with respect to applications in electroactive devices.
Femtosecond laser-induced periodic surface structures: from light localization to applications
(2019)
This presentation reviews the current state in the field of Laser-induced Periodic Surface Structures (LIPSS). These surface nanostructures are a universal phenomenon and can be generated on almost any material by irradiation with intense linearly polarized laser radiation. LIPSS are formed in a “self-ordered” way and are often accompanying material processing applications. They can be produced following a single-step process and enable surface functionalization through the adaption of optical, mechanical and chemical surface properties. Their structural sizes typically range from several micrometers down to less than 100 nanometers exhibiting a clear correlation with the polarization direction of the laser radiation. Various types of surface structures are classified, relevant control parameters are identified, and their material specific formation mechanisms are analyzed for different types of inorganic solids, i.e., metals, semiconductors, and dielectrics, through time-resolved optical experiments and theoretical simulations. Finally, technological applications featuring surface functionalization in the fields of optics, fluidics, medicine, and tribology are discussed.
In contrast to microplastics, little is known about nanoplastics (1 to 100 nm). In order to make the dectecability of nanoplasics more reliable, we started to develop nanoplastic reference materials. This project also aims to anser the question of how the single chain conformation of bio(polymers) changes in contact with nanoplastics. Small-angle X-ray and neutron scattering methods are suitable methods for studing this topic. Recently the soft and hard interactions between polystyrene nanoplasics and human serum albumin corona was investigated with small-angle neutron scattering. Here we concentrate on small-angle X-ray scattering as our favorite method to study how (bio)polymers change their conformation in contact with nanoplastics. The scattering of bovine serum albumin in its native state can be detected easily. The scattering pattern of this biopolymer changes dramatically when its globular stucture changes to a coil structure. Modeling of chain conformations and the calculation of the scattering pattern is relatively easy to perform. Numerous model calculations will be provided to predict the changes of conformation of single bio(polymer) chains when in conatact with nanoplastics. These predictions will be compared with recent experimenal results from in situ measurments of bio(polymers) in contact with nanoplastics. The impact of temperature, polymer concentration and salt on the single-chain conformation changes will be discussed.
Laser-induced periodic surface structures: from nanoscaled light localization to applications
(2019)
In this contribution the current state in the field of Laser-Induced Periodic Surface Structures (LIPSS) is reviewed. This includes the mechanisms of formation and current applications, particularly the colorization of technical surfaces, the control of surface wetting properties, the tailoring of surface colonization by bacterial biofilms, and the improvement of the tribological performance of nanostructured metal surfaces.
Peptide-polymer bioconjugates combine oligopeptides with synthetic polymer blocks and can be used for various applications in material sciences. In recent years, bioconjugates were applied as compatibilizers and coatings. Biocombinatorial approaches, such as phage display, have been shown to yield strong binding peptides, which exhibit excellent coating properties as peptide-PEO conjugates. Phage display represents a widely exploited strategy to select peptides or proteins that exhibit highly specific affinity to various substrates. Following a phage display experiment, DNA sequencing of binding phage clones is required in order to get the sequence information of the binding peptides. Traditionally, random clone picking followed by Sanger sequencing was applied. However, this method may not necessarily identify the strongest binding clones. Next-generation sequencing made sequencing of whole phage libraries possible, which highly improved the selection of strong binders. Here, we show that the biocombinatorial method of phage display combined with next generation DNA sequencing of whole phage libraries represents a powerful tool for an application in material chemistry. Phage display is used to find specific target binding peptides for polypropylene surfaces (PP). PP binders are of particular interest because thus far gluing or printing on PP is challenging due to its low surface energy. Scripts for sequence data analysis were developed and promising sequences were synthesized as peptide-PEO conjugates. Fluorescence based adsorption experiments on PP surfaces led to the identification of strong binding sequences and a better understanding of the peptide-surface interactions.
BAM provides leading expertise in preparation, characterisation and application of fluorescent reference standards and biomedical relevant nanomaterials, as well as in traceable, absolute, and quantitative fluorometric measurements of transparent and scattering systems in the ultraviolet, visible, and near infrared spectral region. BAM will prepare solid low-RI particles in WP1, will develop reference methods to determine the fluorescence intensity and RI of reference materials in WP2, and will measure the fluorescence intensity of EVs in biological test samples of WP3.
There are different ways how to prove the quality of the results obtained by electron microscopy and related microanalysis techniques, e.g. use of validated standard operation procedures, participation in proficiency testing exercises, use of certified reference materials, etc. International standards are able to provide requirements, specifications, guidelines or characteristics of methods, instruments or samples with the final goal that these can be used consistently in accredited laboratories. In the field of electron microscopy and microbeam analysis standardization and metrology are terms which are encountered rather seldom at major conferences and scientific publications. Nevertheless, spectra formats like EMSA/MSA for spectral-data exchange or tagged image file format (TIFF) for SEM, guidelines for performing quality assurance procedures or for the specification of X-ray spectrometers as well as of certified reference materials (CRMs) in EPMA, or measurement of average grain size by electron backscatter diffraction (EBSD), or guidelines for calibrating image magnification in SEM or TEM are ISO standards already published and used successfully by a large part of the electron microscopy and microbeam analysis community. A main and continuous task of ISO/TC 202 and its subcommittees is to identify and evaluate feasible projects/proposals needed to be developed into new international standards, particularly in respect to recent but established technology, such the silicon drift detector (SDD) EDS one.
Another international platform in the frame of which pre-standardization work can be organized is VAMAS (Versailles Project on Advanced Materials and Standards). International collaborative projects involving aim at providing the technical basis for harmonized measurements, testing, specifications, and standards to be further developed at ISO level. One key point of VAMAS activities is constituted by inter-laboratory comparisons for high-quality data. In the field of microbeam analysis, the technical working area (TWA) 37 Quantitative Microstructural Analysis deals with corresponding projects. Good ideas, e.g. on analysis of low-Z materials/elements and at low energies are particularly encouraged by directly contacting the author. Support and already available guidance will be supplied.
The rational synthesis and use of nanomaterials require the characterization of many different properties, ranging from particle size and size distribution over surface chemistry to more applicationrelevant features like optical, electrochemical, and magnetic properties. In the following, several methods for the characterization of functional groups on nanomaterials, like polymer and silica nanoparticles, semiconductor quantum dots, and lanthanide-based upconversion nanocrystals are presented. Additionally, procedures for the measurement of the key spectroscopic performance parameters of nanomaterials with linear and nonlinear photoluminescence, such as the photoluminescence quantum yield, are presented for the UV/vis/NIR/SWIR.
Porous materials play an important role in several fields of technology, especially for energy applications like photovoltaics, electrolysis or batteries. The activity of porous films is affected by properties like porosity, film thickness, chemical composition of the material as well as the crystallinity of the framework. The complex morphology of such porous films constitutes a challenge for modern analytical techniques and requires approaches employing the combination/complementation of data of different analytical methods. In this contribution we characterize thin mesoporous iridium-titanium mixed oxide film properties by spectroscopic ellipsometry (SE).
Mesoporous iridium oxide - titanium oxide (IrOx-TiOx) films were prepared via dip-coating of a solution containing a triblock-copolymer as structure-directing agent, an iridium precursor as well as a titanium precursor in ethanol. Deposited films with different amounts of iridium (0 wt%Ir to 100 wt%Ir) were synthesized and calcined in air. The thin films were analyzed with SE using the Bruggeman effective medium approximation (BEMA) for modelling. The results were compared with electron probe microanalysis (EPMA) as part of a combined SEM/EDS/STRATAGem Analysis.
Im Vortrag werden das Messprinzip des Zentrifugen-Sedimentationsverfahrens erläutert und die Anforderungen der zugrundeliegenden Normen diskutiert. Es schließen sich umfangreiche Ausführungen zur praktischen Durchführung der Messung, insbesondere auch zu den vorbereitenden Arbeiten, sowie zur Auswertung der Rohdaten an. Nach einem Vergleich der Ergebnisse mit anderen Messverfahren, wird das Verfahren in einer Zusammenfassung bewertet.
Experimenting on MAUS
(2019)
Everything SAXS
(2019)
The 44th Meeting of the Versailles Project on Advanced Materials and Standards (VAMAS) Steering Committee has just taken place at NIST in Boulder (CO, USA). BAM participates with significant contributions in Technical Working Areas on nanoparticle and surface chemistry characterization, but also has positioned itself to new global material challenges and trends in the developement of advanced materials and their characterization, such as thermal properties, self-healing materials, and micro- and nanoplastic.
Simulational tools are applied to investigate the physical properties of nanoparticles.
For the description of radioactive gold nanoparticles, particles scattering simulations are performed with the Geant4 monte carlo simulation toolkit.
The temperature dependent behaviour of the magnetization dynamics of different magnetic nanoparticles are simulated with the object oriented micormagnetic framework (OOMMF).