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Mione, M.A. (author), Katsouras, I. (author), Creyghton, Y. (author), van Boekel, W. (author), Maas, J. (author), Gelinck, G. (author), Roozeboom, F. (author), Illiberi, A. (author)High permittivity (high-k) materials have received considerable attention as alternatives to SiO2 for CMOS and low-power flexible electronics applications. In this study, we have grown high-quality ZrO2 by using atmospheric-pressure plasma-enhanced spatial ALD (PE-sALD), which, compared to temporal ALD, offers higher effective deposition rates...article 2017
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Souza, L.M.S. (author), Polder, R.B. (author), Copuroglu, O. (author)The currently available treatment techniques for concrete structures affected by alkali-silica reaction (ASR) are limited and electrochemical lithium migration has been proposed as an alternative. Lithium compounds have shown to have beneficial effects on ASR expansion when used as admixtures to fresh concrete. During the electrochemical...article 2017
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Segers, M. (author), Vermeer, I. (author), Möller, M. (author), Verheijen, M. (author), Buskens, P. (author)Hybrid particles consisting of an organic polymer and silica or polyorganosiloxanes are interesting building blocks for nanocomposites. The synthesis of such particles typically requires multiple reaction steps involving the formation of polymer colloids and the subsequent deposition of silicon-containing material either inside or on the surface...article 2017
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Segers, M. (author), Sliepen, M. (author), Kraft, D.J. (author), Möller, M. (author), Buskens, P. (author)Recently, our group reported synthesis routes for sub-micron sized hollow, and nanoporous phenylsiloxane spheres, in which phenyltrimethoxysilane is applied as surfmer. Here, we present insights into the surfactant formed through hydrolytic conversion of phenyltrimethoxysilane, and factors influencing the particle architecture. cop. 2016...article 2016
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van Wijk, J. (author), Salari, J.W.O. (author), Meuldijk, J. (author), Klumperman, B. (author)A novel procedure was developed to determine the direction of silica growth during the formation of a silica shell around aqueous microdroplets in water-in-oil Pickering emulsions. Two fluorescently labeled silica precursors were added consecutively and the resulting microcapsules were visualized via confocal fluorescence microscopy, allowing...article 2015
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Segers, M. (author), van Zandvoort, R. (author), Sliepen, M. (author), Arfsten, N. (author), Verheijen, M. (author), Keul, H. (author), Buskens, P. (author), Möller, M. (author)We present a facile and versatile platform approach for the synthesis of submicrometer-sized hybrid particles based on an oil-in-water emulsion. These particles comprise organosiloxanes and/or organosilsesquioxanes formed via hydrolysis and polycondensation of alkyl- or aryltrimethoxysilane, and polystyrene or poly(methyl methacrylate) formed...article 2014
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van der Zande, M. (author), Vandebriel, R.J. (author), Groot, M.J. (author), Kramer, E. (author), Herrera Rivera, Z.E. (author), Rasmussen, K. (author), Ossenkoppele, J.S. (author), Tromp, P. (author), Gremmer, E.R. (author), Peters, R.J.B. (author), Hendriksen, P.J. (author), Marvin, H.J.P. (author), Hoogenboom, R.L.A.P. (author), Peijnenburg, A.A.C.M. (author), Bouwmeester, H. (author)Background: Synthetic Amorphous Silica (SAS) is commonly used in food and drugs. Recently, a consumer intake of silica from food was estimated at 9.4 mg/kg bw/day, of which 1.8 mg/kg bw/day was estimated to be in the nano-size range. Food products containing SAS have been shown to contain silica in the nanometer size range (i.e. 5 - 200 nm) up...article 2014
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Segers, M. (author), Arfsten, N. (author), Buskens, P. (author), Möller, M. (author)We present a facile route for the synthesis of sub-micron sized hollow and multiporous organosilica spheres, which is based on an oil-in-water emulsion and merely uses one organosilica precursor-phenyl trimethoxysilane-that serves as monomer, precursor for a surface active species and oil phase. This journal is © the Partner Organisations 2014.article 2014
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Khan, M.U. (author), Justice, J. (author), Boersma, A. (author), Mourad, M. (author), van Ee, R.J. (author), van Blaaderen, A. (author), Wijnhoven, J. (author), Corbett, B. (author)We present designs for sharp bends in polymer waveguides using colloidal photonic crystal (PhC) structures. Both silica (SiO2) sphere based colloidal PhC and core-shell colloidal PhC structures having a titania (TiO 2) core inside silica (SiO2) shells are simulated. The simulation results show that core-shell Face Centered Cubic (FCC) colloidal...conference paper 2014
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Berg, S. (author), Leng, M.J. (author), Kendrick, C.P. (author), Cremer, H. (author), Wagner, B. (author)Organic carbon occluded in diatom silica is assumed to be protected from degradation in the sediment. δ13C from diatom carbon (δ13C(diatom)) therefore potentially provides a signal of conditions during diatom growth. However, there have been few studies based on δ13C(diatom). Numerous variables can influence δ13C of organic matter in the marine...article 2013
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Sedao, X. (author), Derrien, T.J.Y. (author), Romer, G.R.B.E. (author), Pathiraj, B. (author), Huis in 't veld, A.J. (author)Laser surface micro/nanopatterning by particle lens arrays is a well-known technique. Enhanced optical fields can be achieved on a substrate when a laser beam passes through a self-assembled monolayer of silica microspheres placed on the substrate. This enhanced optical field is responsible for ablative material removal from the substrate...article 2013
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Koeman, T. (author), Offermans, N.S.M. (author), Christopher-De Vries, Y. (author), Slottje, P. (author), van den Brandt, P.A. (author), Goldbohm, R.A. (author), Kromhout, H. (author), Vermeulen, R. (author)Background: In epidemiological studies, occupational exposure estimates are often assigned through linkage of job histories to job-exposure matrices (JEMs). However, available JEMs may have a coding system incompatible with the coding system used to code the job histories, necessitating a translation of the originally assigned job codes. Since...article 2013
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Peters, R. (author), Kramer, E. (author), Oomen, A.G. (author), Herrera Rivera, Z.E. (author), Oegema, G. (author), Tromp, P.C. (author), Fokkink, R. (author), Rietveld, A. (author), Marvin, H.J.P. (author), Weigel, S. (author), Peijnenburg, A.A.C.M. (author), Bouwmeester, H. (author)The presence, dissolution, agglomeration state, and release of materials in the nano-size range from food containing engineered nanoparticles during human digestion is a key question for the safety assessment of these materials. We used an in vitro model to mimic the human digestion. Food products subjected to in vitro digestion included (i) hot...article 2012
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Rooms, H.C.A. (author), Barbu, I. (author), Vroon, Z.A.E.P. (author), Meertens, R. (author), Vermeulen, B. (author)The acceptance of solar cells in the built environment is partly dependent on the appearance of the solar modules. One aspect in the appearance is color. In most cases a solar cell itself reflects either blue or no color and will appear blackish. For the blue solar cells it is possible to tune the antireflection layer in such a way that a...conference paper 2011
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Berrier, A. (author), Offermans, P. (author), Cools, R. (author), van Megen, B. (author), Knoben, W. (author), Vecchi, G. (author), Rivas, J.G. (author), Crego-Calama, M. (author), Brongersma, S.H. (author)The development of sensing schemes for the detection of health-threatening gases is an attractive subject for research towards novel integrated autonomous sensor systems. We report here on a novel way of sensing NO\2 by surface plasmon resonance (SPR) using a gas-sensitive layer composed of 5,10,15,20-Tetrakis(4-hydroxyphenyl)-21H,23H-porphine ...article 2011
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Beerkens, R.G.C. (author), Kers, G. (author), van Santen, E. (author)This presentation shows the advantages of re-melting post-consumer glass, but also the potential risks of using contaminated cullet in the raw material batch of glass furnaces (e.g. container glass furnaces). As an example of potential advantages: increasing the cullet % in the batch of an efficient end-port fired regenerative container glass...conference paper 2011
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TNO Bouw en Ondergrond (author), Garming, J.F.L. (author), Franks, S.G. (author), Cremer, H. (author), Abbink, O.A. (author)Biogenic silica particles (BSPs) have been discovered in sediments of the Permian - Carboniferous Unayzah Formation of Saudi Arabia. The BSPs are extracted from sediments that are generally barren of macro- or microfossils. BSPs have been found in the Basal Khuff Clastics (BKC), and the Unayzah A, B, and C members, that were sampled in six...article 2010
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Steudel, A. (author), Batenburg, L.F. (author), Fischer, H.R. (author), Weidler, P.G. (author), Emmerich, K. (author), TNO Industrie en Techniek (author)The bulk material of six dioctahedral and two trioctahedral swellable clay minerals was leached in H2SO4 and HCl at concentrations of 1.0, 5.0 and 10.0 M at 80 °C for several hours. Alteration of the clay mineral structures was dependent on the individual character of each mineral (chemical composition and initial particle size). Acid attack...article 2009
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Akesso, L. (author), Pettitt, M.E. (author), Callow, J.A. (author), Callow, M.E. (author), Stallard, J. (author), Teer, D. (author), Liu, C. (author), Wang, S. (author), Zhao, Q. (author), D'Souza, F. (author), Willemsen, P.R. (author), Donnelly, G.T. (author), Donik, C. (author), Kocijan, A. (author), Jenko, M. (author), Jones, L.A. (author), Guinaldo, P.C. (author), TNO Industrie en Techniek (author)SiOx-like coatings were deposited on glass slides from a hexamethylsiloxane precursor by plasma-assisted CVD (PACVD). Surface energies (23.1-45.7 mJ m-1) were correlated with the degree of surface oxidation and hydrocarbon contents. Tapping mode AFM revealed a range of surface topologies with Ra values 1.55-3.16 nm and RMS roughness 1.96-4.11 nm...article 2009
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Steudel, A. (author), Batenburg, L.F. (author), Fischer, H.R. (author), Weidler, P.G. (author), Emmerich, K. (author), TNO Industrie en Techniek (author)The bulk material of three kaolins, a sepiolite, an illite and one magadiite were treated with 1, 5 and 10 M H2SO4 at 80 °C for several hours. The alteration of the non-swelling clay mineral structures was controlled by the individual character of each mineral (chemical composition and initial particle size). The reaction resulted in a...article 2009