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Peters, R.J.B. (author), Oomen, A.G. (author), van Bemmel, G. (author), van Vliet, L. (author), Undas, A.K. (author), Munniks, S. (author), Bleys, R.L.A.W. (author), Tromp, P.C. (author), Brand, W. (author), van der Lee, M. (author)Silicon dioxide (silica, SiO2, SAS) and titanium dioxide (TiO2) are produced in high volumes and applied in many consumer and food products. As a consequence, there is a potential human exposure and subsequent systemic uptake of these particles. In this study we show the characterization and quantification of both total silicon (Si) and titanium...article 2020
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Wimmer, A. (author), Ritsema, R. (author), Schuster, M. (author), Krystek, P.W. (author)Detection and quantification of trace elements in aqueous samples is crucial in terms of environmental monitoring and risk assessment for (heavy) metals in the environment. Silver (Ag) in its nanoparticulate form is commonly used as antimicrobial additive in consumer products and pharmaceuticals. Since released dissolved Ag species act as the...article 2019
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Markus, A.A. (author), Krystek, P. (author), Tromp, P.C. (author), Parsons, J.R. (author), Roex, E.W.M. (author), de Voogt, P. (author), Laane, R.W.P.M. (author)We investigated the occurrence of metal-based nanoparticles in a natural system, the river Dommel in the Netherlands. The river itself is well-studied as far as hydrology and water quality is concerned, easily accessible and contains one major wastewater treatment plant discharging onto this river. We sampled water from various locations along...article 2018
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Tromp, P.C. (author), Kuijpers, E. (author), Bekker, C. (author), Godderis, L. (author), Lan, Q. (author), Jedynska, A.D. (author), Vermeulen, R. (author), Pronk, A. (author)To date there is no consensus about the most appropriate analytical method for measuring carbon nanotubes (CNTs), hampering the assessment and limiting the comparison of data. The goal of this study is to develop an approach for the assessment of the level and nature of inhalable multi-wall CNTs (MWCNTs) in an actual workplace setting by...article 2017
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Peters, R.J.B. (author), van Bemmel, G. (author), Herrera-Rivera, Z. (author), Helsper, H.P.F.G. (author), Marvin, H.J.P. (author), Weigel, S. (author), Tromp, P.C. (author), Oomen, A.G. (author), Rietveld, A.G. (author), Bouwmeester, H. (author)Titanium dioxide (TiO2) is a common food additive used to enhance the white color, brightness, and sometimes flavor of a variety of food products. In this study 7 food grade TiO2 materials (E171), 24 food products, and 3 personal care products were investigated for their TiO 2 content and the number-based size distribution of TiO2 particles...article 2014