Size characterization of airborne SiO2 nanoparticles with on-line and off-line measurement techniques: an interlaboratory comparison study

Charles, Matthew; Macé, Tatiana; Gaie-Levrel, François; Ducourtieux, S.; Delvallée, Alexandra; Dirscherl, Kai; Hodoroabă, Vasile-Dan; Popov, Inna; Popov, O.; Kuselman, Ilya; Takahata, Keiji; Ehara, Kensei; Ausset, Patrick; Maillé, M.; Michielsen, N.; Bondiguel, S.; Gensdarmes, F.; Morawska, Lidia; Johnson, Graham R.; Faghihi, Ehsan Majd; Kim, C.S.; Kim, Yoon Hak; Chu, Min-Cheol; Guardado, Juan Antonio; Salas, A.; Capannelli, G.; Costa, Camilla; Boström, Thor E.; Jämting, Åsa K.; Lawn, M.A.; Adlem, Loukie; Vaslin-Reimann, Sophie

doi:10.1007/s11051-013-1919-4

Cited by 36 publications

(48 citation statements)

References 30 publications

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“…For reference gold nanoparticles below 100 nm systematic deviations between the three sizing methods AFM, SMPS and TSEM were observed (see Figure 3). Similar deviations have been reported in the literature [6,7] and could not be resolved in the frame of the project. The JRP-Consortium therefore released the following recommendation on how to calibrate DMAs:…”

Section: Si-traceable Electric Mobility Diametersupporting

confidence: 75%

Measuring soot particles from automotive exhaust emissions

Andres

Lüönd

Schlatter

et al. 2014

EPJ Web of Conferences

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Abstract. The European Metrology Research Programme participating countries and the European Union jointly fund a three year project to address the need of the automotive industry for a metrological sound base for exhaust measurements. The collaborative work on particle emissions involves five European National Metrology Institutes, the Tampere University of Technology, the Joint Research Centre for Energy and Transport and the Leibniz Institute for Tropospheric Research. On one hand, a particle number and size standard for soot particles is aimed for. Eventually this will allow the partners to provide accurate and comparable calibrations of measurement instruments for the type approval of Euro 5b and Euro 6 vehicles. Calibration aerosols of combustion particles, silver and graphite proof partially suitable. Yet, a consensus choice together with instrument manufactures is pending as the aerosol choice considerably affects the number concentration measurement. Furthermore, the consortium issued consistent requirements for novel measuring instruments foreseen to replace today's opacimeters in regulatory periodic emission controls of soot and compared them with European legislative requirements. Four partners are conducting a metrological validation of prototype measurement instruments. The novel instruments base on light scattering, electrical, ionisation chamber and diffusion charging sensors and will be tested at low and high particle concentrations. Results shall allow manufacturers to further improve their instruments to comply with legal requirements.

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Section: Si-traceable Electric Mobility Diametersupporting

confidence: 75%

Measuring soot particles from automotive exhaust emissions

Andres

Lüönd

Schlatter

et al. 2014

EPJ Web of Conferences

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“…8; Motzkus et al, 2013). The metrological capabilities provided by this unique methodical approach are convincing, mainly consisting of accurate determination of NP size and size distributions.…”

Section: Discussionmentioning

confidence: 89%

Performance of High-Resolution SEM/EDX Systems Equipped with Transmission Mode (TSEM) for Imaging and Measurement of Size and Size Distribution of Spherical Nanoparticles

et al. 2014

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The analytical performance of high-resolution scanning electron microscopy/energy dispersive X-ray spectroscopy (SEM/EDX) for accurate determination of the size, size distribution, qualitative elemental analysis of nanoparticles (NPs) was systematically investigated. It is demonstrated how powerful high-resolution SEM is by using both mono- and bi-modal distributions of SiO2 airborne NPs collected on appropriate substrates after their generation from colloidal suspension. The transmission mode of the SEM (TSEM) is systematically employed for NPs prepared on thin film substrates such as transmission electron microscopy grids. Measurements in the transmission mode were performed by using a "single-unit" TSEM transmission setup as manufactured and patented by Zeiss. This alternative to the "conventional" STEM detector consists of a special sample holder that is used in conjunction with the in-place Everhart-Thornley detector. In addition, the EDX capabilities for imaging NPs, highlighting the promising potential with respect to exploitation of the sensitivity of the new large area silicon drift detector energy dispersive X-ray spectrometers were also investigated. The work was carried out in the frame of a large prenormative VAMAS (Versailles Project on Advanced Materials and Standards) project, dedicated to finding appropriate methods and procedures for traceable characterization of NP size and size distribution.

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“…However, it was demonstrated that calibration with appropriate standards is necessary to achieve accurate quantification and a study of results comparability with IN revealed important variability depending on the calibration material chosen [90]. As for diameter measurement accuracy, ES-DMA systems are generally calibrated with CRMs of inorganic nanoparticles and provide highly precise measurements [90,92]. It is however important to note that the diameters measured with ES-DMA are electrical mobility diameters, i.e.…”

Section: Electrospray Differential Mobility Analysis (Es-dma)mentioning

confidence: 99%

Advanced lipoprotein testing for cardiovascular diseases risk assessment: a review of the novel approaches in lipoprotein profiling

Clouet-Foraison

Gaie-Levrel

Gillery

et al. 2017

Clinical Chemistry and Laboratory Medicine (CCLM)

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Abstract:With the increasing prevalence of cardiovascular diseases (CVD) worldwide, finding reliable and clinically relevant biomarkers to predict acute cardiovascular events has been a major aim of the scientific and medical community. Improvements of the understanding of the pathophysiological pathways of the disease highlighted the major role of lipoprotein particles, and these past decades have seen the emergence of a number of new methodologies to separate, measure and quantitate lipoproteins. Those methods, also known as advanced lipoprotein testing methods (ALT), have gained acceptance in the field of CVD risk assessment and have proven their clinical relevance. In the context of worldwide standardization and harmonization of biological assays, efforts have been initiated toward standardization of ALT methods. However, the complexity of lipoprotein particles and the multiple approaches and methodologies reported to quantify them have rendered these initiatives a critical issue. In this context and to better understand these challenges, this review presents a summary of the major methods available for ALT with the aim to point out the major differences in terms of procedures and quantities actually measured and to discuss the resulting comparability issues.

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Size characterization of airborne SiO2 nanoparticles with on-line and off-line measurement techniques: an interlaboratory comparison study

Cited by 36 publications

References 30 publications

Measuring soot particles from automotive exhaust emissions

Measuring soot particles from automotive exhaust emissions

Performance of High-Resolution SEM/EDX Systems Equipped with Transmission Mode (TSEM) for Imaging and Measurement of Size and Size Distribution of Spherical Nanoparticles

Advanced lipoprotein testing for cardiovascular diseases risk assessment: a review of the novel approaches in lipoprotein profiling

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