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Search for "sizing" in Full Text gives 15 result(s) in Beilstein Journal of Nanotechnology.
Comparative electron microscopy particle sizing of TiO2 pigments: sample preparation and measurement
Beilstein J. Nanotechnol. 2024, 15, 317–332, doi:10.3762/bjnano.15.29
- ; particle sizing; primary particles; Introduction Following the EU definition of nanomaterials as being materials in which more than 50% by number of their primary particles have at least one dimension smaller than 100 nm [1][2], the accurate measurement of particle size distributions (PSDs) has become
- Technical Report [13]; EM particle size measurements are covered in OECD guidelines [14] as well as in ISO standards [ISO/TS 19749 (published 07/21) and ISO/TS 21363:2020 (published 11/21)]. The key to any visual EM particle sizing method is to take random images of the sample, to evaluate all measurable
- , and M3 completely rely on particle edge detection by the human eye, which is the most accurate detection method assuming good laboratory practice. Methods M1, P1, and P6 rely on automated particle detection, the former using a model-free sizing algorithm and the latter two using a sizing algorithm
Development and characterization of potential larvicidal nanoemulsions against Aedes aegypti
Beilstein J. Nanotechnol. 2024, 15, 104–114, doi:10.3762/bjnano.15.10
- tracking analysis From the two results obtained above, the HLB 15 formulation containing cymene and the HLB 16 formulation containing myrcene underwent nanoparticle tracking analysis (NTA). NTA is a technique for direct and real-time visualization, sizing, and counting of nanometric materials suspended in
Progress and innovation of nanostructured sulfur cathodes and metal-free anodes for room-temperature Na–S batteries
Beilstein J. Nanotechnol. 2021, 12, 995–1020, doi:10.3762/bjnano.12.75
- instability, slow sodiation kinetics, and SEI breakaway. The low cycle stability is caused by the considerable volume expansion in the range of 300–500% during sodiation of these elements, which threatens the integrity of the anode [73][74][76]. One solution to this drawback is down-sizing the active alloy to
- electrical conductivity of sulfur and Na2S. Volume expansion that leads to material breakdown is a threat both at the cathode and the anode side, especially in case of sodiated alloys. It was shown that down-sizing the active components on both electrodes is a viable strategy to mitigate many of these issues
Development of a new hybrid approach combining AFM and SEM for the nanoparticle dimensional metrology
Beilstein J. Nanotechnol. 2019, 10, 1523–1536, doi:10.3762/bjnano.10.150
- NP dimensional measurement and the meter definition in the international system (SI) of units [1]. The involved measurand is then a geometrical size. Unlike microscopy-based techniques, all other NP sizing techniques, for instance, dynamic light scattering, centrifugal liquid sedimentation, and
Hyperthermic intracavitary nanoaerosol therapy (HINAT) as an improved approach for pressurised intraperitoneal aerosol chemotherapy (PIPAC): Technical description, experimental validation and first proof of concept
Beilstein J. Nanotechnol. 2017, 8, 2729–2740, doi:10.3762/bjnano.8.272
- bipolar neutraliser (model 3077A, TSI Inc., Shoreview, USA) to improve the charge conditions for analyses. The operated aerosol-analytic instruments received the aerosol samples through a flow splitter. A scanning mobility particle sizing system (SMPS, model 3938, TSI Inc., Shoreview, USA) for
Synthesis and characterization of noble metal–titania core–shell nanostructures with tunable shell thickness
Beilstein J. Nanotechnol. 2017, 8, 2083–2093, doi:10.3762/bjnano.8.208
- resolution of this technique. Recently, it has been demonstrated that of the various particle sizing techniques, two of them (differential centrifugal sedimentation (DCS) and tunable resistive pulse sensing (TRPS) [58][59]) are capable of achieving resolution similar to the TEM technique. Both techniques
Enhancement of mechanical and electrical properties of continuous-fiber-reinforced epoxy composites with stacked graphene
Beilstein J. Nanotechnol. 2017, 8, 1909–1918, doi:10.3762/bjnano.8.191
- viscosity. This effect was less obvious with carbon or glass fibers, due to the lower surface energy of the carbon fibers or some incompatibility with the glass-fiber sizing. Proper choice of the surfactant and fine-tuning of the crosslink density at the interphase may provide further enhancements in thermo
- ratio was 2:90:10. Acetic acid (2 g) was added to adjust the pH value of the solution to 5.0. Wet specimens were rinsed with IPA, dried at room temperature and finally cured at 120 °C for 30 min. Specimens of FG fabrics were heat-treated at 600 °C for 2 h to burn out the sizing material and dried at 150
- . The reason for the latter deterioration could be attributed to the increased rigidity of the laminates expressed as lower strain at yield, or the incompatibility between the FG sizing and the various SAAs leading to agglomeration in the matrix phase, as shown in Figure 3. Experiments aimed at
Preparation of thick silica coatings on carbon fibers with fine-structured silica nanotubes induced by a self-assembly process
Beilstein J. Nanotechnol. 2017, 8, 1145–1155, doi:10.3762/bjnano.8.116
- inner accessible hollow of 3 nm [17][18]. Chopped carbon fibers were pretreated by calcination to remove sizing agents and to evaluate the immobilization suitability of linear poly(ethylenimine) for the fiber surface. To enable a self-assembly of the LPEI molecules on the carbon fiber’s surface, the
- atmosphere associated with disappearance and coalescence of the fine-structure (Supporting Information File 1, Figure S7). Variation of the fiber substrate The surface of carbon fibers of which the sizing agent is removed by calcination at 400 °C is attractive enough for the molecular-level interactions with
- . Modification of carbon fiber surface by nitric acid oxidation followed by reaction with tetraethylenepentamine and subsequent silicification. For chemical modification, chopped carbon fibers with a water-soluble sizing were used (Tenax HT-A C124, Toho Tenax, average length: 3 mm) and the sizing was removed by
Reasons and remedies for the agglomeration of multilayered graphene and carbon nanotubes in polymers
Beilstein J. Nanotechnol. 2016, 7, 1174–1196, doi:10.3762/bjnano.7.109
Localized surface plasmon resonances in nanostructures to enhance nonlinear vibrational spectroscopies: towards an astonishing molecular sensitivity
Beilstein J. Nanotechnol. 2014, 5, 2275–2292, doi:10.3762/bjnano.5.237
Influence of stabilising agents and pH on the size of SnO2 nanoparticles
Beilstein J. Nanotechnol. 2014, 5, 2192–2201, doi:10.3762/bjnano.5.228
- . Dynamic light scattering (DLS): The diameter distribution of the resulting nanoparticles was determined by DLS. The studies were performed using a Nicomp 380ZLS Particle Sizing System with an excitation wavelength of 532 nm at 50 mW. The frequency of the photon counting was fixed at about 200 kHz, and
A reproducible number-based sizing method for pigment-grade titanium dioxide
Beilstein J. Nanotechnol. 2014, 5, 1815–1822, doi:10.3762/bjnano.5.192
- of forthcoming national and international regulations concerning the classification of nanomaterials. Scientific efforts towards standardized number-based sizing methods have so far been concentrated on model systems, such as spherical gold or silica nanoparticles. However, for industrial particulate
- materials, which are typically targets of regulatory efforts, characterisation is in most cases complicated by irregular particle shapes, broad size distributions and a strong tendency to agglomeration. Reliable sizing methods that overcome these obstacles, and are practical for industrial use, are still
- that the typical difficulties of sizing processes are overcome by the proposed method of sample preparation and image analysis. In other words, a robust, reproducible and statistically reliable method is presented, which leads to a number-based size distribution of pigment-grade titanium dioxide, for
Morphological characterization of fullerene–androsterone conjugates
Beilstein J. Nanotechnol. 2014, 5, 374–379, doi:10.3762/bjnano.5.43
- dynamic light scattering (DLS) measures the hydrodynamic diameter of the particle including the solvation layers, while TEM gives the most direct information about the size distribution and shapes of the primary particles. DLS and TEM have different basis and can lead to discrepancies in sizing
Porous polymer coatings as substrates for the formation of high-fidelity micropatterns by quill-like pens
Beilstein J. Nanotechnol. 2013, 4, 377–384, doi:10.3762/bjnano.4.44
- ammonium groups (supplier specification). The average pore size obtained from SEM amounts to (0.79 ± 0.57) µm and is compatible with the specification within one standard deviation, but the overall pore size distribution seems broad with many pores sizing up to almost 2 µm (Figure 2b). The porous HEMA
Magnetic nanoparticles for biomedical NMR-based diagnostics
Beilstein J. Nanotechnol. 2010, 1, 142–154, doi:10.3762/bjnano.1.17
- increases both the magnetization as well as the particle cross-sectional area. Both magnetic doping and sizing strategies were recently employed by our laboratory to produce MnFe2O4 nanoparticles with superior r2 relaxivity, for DMR biosensing applications [15]. These particles were synthesized by reacting
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