Searched for: subject%3A%22Colloids%22
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Waulthers, K. (author), van Zandvoort, R. (author), Castermans, S. (author), Welzen, J. (author), Baeten, E. (author), Stout, K. (author), Keul, H. (author), Mann, D. (author), Buskens, P. (author)
Reactive surfactants (surfmers), which are covalently attached to the surface of sub-micron sized polymer particles during emulsion polymerisation, are applied to tailor the surface functionality of polymer particles for an application of choice. We present a systematic study on the use of oligoglycidol-functionalised styrene macromolecules as...
article 2020
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van Groenestijn, G.J. (author), Meulendijks, N. (author), van Ee, R. (author), Volker, A.W.F. (author), van Neer, P.L.M.J. (author), Buskens, P. (author), Julien, C. (author), Verheijen, M. (author)
Both in design and production of nanoparticles and nanocomposites it is of vital importance to have information about their size and concentration. During the formation of nanoparticles, real-time monitoring of particle size and concentration during bottom-up synthesis in liquids allows for a detailed study of nucleation and growth. This...
article 2018
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van Groenestijn, G.J.A. (author), Meulendiiks, N.M.M. (author), Volker, A.W.F. (author), van Neer, P.L.M.J. (author), Buskens, P.J.P. (author)
Nanoparticles are applied in an increasing number of products (e.g. medicine, food and cosmetics). There is a need to real-time monitor the growth of nanoparticles during production inside the chemical reactor. However, standard particle sizing methods such as dynamic light scattering (DLS) and transmission electron microscopy (TEM) cannot do...
conference paper 2018
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Meulendijks, N. (author), van Ee, R. (author), Stevens, R. (author), Mourad, M. (author), Verheijen, M. (author), Kambly, N. (author), Armenta, R. (author), Buskens, P. (author)
To tailor the properties of nanoparticles and nanocomposites, precise control over particle size is of vital importance. Real-time monitoring of particle size during bottom-up synthesis in liquids would allow a detailed study of particle nucleation and growth, which provides valuable insights in the mechanism of formation of the nanoparticles....
article 2018
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Vilela, S.M.F. (author), Salcedo-Abraira, P. (author), Colinet, I. (author), Salles, F. (author), de Koning, M.C. (author), Joosen, M.J.A. (author), Serre, C. (author), Horcajada, P. (author)
The three-dimensional (3D) microporous titanium aminoterephthalate MIL-125-NH_2 (MIL: Material of Institut Lavoisier) was successfully isolated as monodispersed nanoparticles, which are compatible with intravenous administration, by using a simple, safe and low-cost synthetic approach (100 °C/32 h under atmospheric pressure) so that for the...
article 2017
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van der Grift, B. (author), Behrends, T. (author), Osté, L.A. (author), Schot, P.P. (author), Wassen, M.J. (author), Griffioen, J. (author)
Exfiltration of anoxic Fe-rich groundwater into surface water and the concomitant oxidative precipitation of Fe are important processes controlling the transport of phosphate (PO4) from agricultural areas to aquatic systems. Here, we explored the relationship between solution composition, reaction kinetics, and the characteristics of the...
article 2016
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van der Grift, B. (author), Behrends, T. (author), Osté, L.A. (author), Schot, P.P. (author), Wassen, M.J. (author), Griffioen, J. (author)
Exfiltration of anoxic Fe-rich groundwater into surface water and the concomitant oxidative precipitation of Fe are important processes controlling the transport of phosphate (PO4) from agricultural areas to aquatic systems. Here, we explored the relationship between solution composition, reaction kinetics, and the characteristics of the...
article 2016
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Yang, S. (author), Harmsma, P. (author), Pozo Torres, J.M. (author), Yousefi, M. (author)
Studies on physical aspects of nanobubbles, i.e., nanoscopic soft domains at the liquid-solid interface, have been increasingly undertaken in the past few years, see [1-3] and references therein. On the technical application side, specifically in the field of micro- and nanofluidics, it has been conjectured that nanobubbles are responsible for...
conference paper 2011
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Knoben, W. (author), Brongersma, S.H. (author), Crego-Calama, M. (author)
The refractive index sensitivity of localized surface plasmon resonance sensors can be improved by placing the plasmonic metal particles on pillars instead of on a planar substrate. In this paper, a simple and versatile colloidal lithography method for the fabrication of plasmonic Au islands on top of polymer nanopillars is described. The pillar...
article 2011
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van Vliet, T. (author), van Aken, G.A. (author), de Jongh, H.H.J. (author), Hamer, R.J. (author), TNO Kwaliteit van Leven (author)
Recently, considerable attention has been given to the understanding of texture attributes that cannot directly be related to physical properties of food, such as creamy, crumbly and watery. The perception of these attributes is strongly related to the way the food is processed during food intake, mastication, swallowing of it and during the...
article 2009
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Wouters, M.E.L. (author), Craenmehr, E.G.M. (author), Tempelaars, K. (author), Fischer, H.R. (author), Stroeks, N. (author), van Zanten, J. (author), TNO Industrie en Techniek (author)
Key properties of organic coatings, such as mechanical strength and solvent resistance, are greatly influenced by the structure of the polymeric binder. In general, a 3-dimensional polymeric network gives the best properties and therefore most performance coatings have a 3-dimensional network structure. However, 3-dimensional networks cannot...
article 2009
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Perelaer, J. (author), Klokkenburg, M. (author), Hendriks, C.E. (author), Schubert, U.S. (author), TNO Industrie en Techniek (author)
Microwave flash sintering of inkjet printed colloidal silver dispersions on thin polymer substrates was studied as a function of the antenna area and initial resistance. The presence of conductive antennae promotes nanoparticle sintering in predried ink lines. For dried nanoparticle inks connected to antennae, sintering times of 1 s are...
article 2009
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Janhoj, T. (author), Frost, M.B. (author), Prinz, J. (author), Ipsen, R. (author), TNO Kwaliteit van Leven (author)
This study explored relationships between physical/chemical and sensory properties using a set of 20 low-fat and non-fat cream cheeses. High correlations were found between several descriptors; hand resistance (i.e., tactile firmness) was best predicted by squeezing flow viscometry (r = 0.90) and followed by dynamic oscillation (r = 0.86),...
article 2009
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Urbanus, J. (author), Roelands, C.P.M. (author), ter Horst, J.H. (author), Verdoes, D. (author), Jansens, P.J. (author), TNO Industrie (author)
In Situ Product Recovery (ISPR) applied in fermentation processes leads to improved yield and productivity of these processes. In principle, ISPR can be achieved using Template Induced Crystallization (TIC), which is one possible ISPR technique. With TIC, templates are added to the solution as a specific surface upon which the solute preferably...
article 2008
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Ekblad, T. (author), Bergström, G. (author), Ederth, T. (author), Conlan, S.L. (author), Mutton, R. (author), Clare, A.S. (author), Wang, S. (author), Liu, Y. (author), Zhao, Q. (author), D'Souza, F. (author), Donnelly, G.T. (author), Willemsen, P.R. (author), Pettitt, M.E. (author), Callow, M.E. (author), Callow, J.A. (author), Liedberg, B. (author), TNO Industrie en Techniek (author)
This work describes the fabrication, characterization, and biological evaluation of a thin protein-resistant poly(ethylene glycol) (PEG)-based hydrogel coating for antifouling applications. The coating was fabricated by free-radical polymerization on silanized glass and silicon and on polystyrene-covered silicon and gold. The physicochemical...
article 2008
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TNO Kwaliteit van Leven (author), Bastiaansen-Jenniskens, Y.M. (author), Koevoet, W. (author), de Bart, A.C.W. (author), Zuurmond, A.M. (author), Bank, R.A. (author), Verhaar, J.A.N. (author), de Groot, J. (author), van Osch, G.J.V.M. (author)
Transforming growth factor beta (TGFbeta) is often used in cartilage tissue engineering to increase matrix formation by cells with various phenotypes. However, adverse effects of TGFbeta, such as extensive cross-linking in cultured fibroblasts, have also been reported. Our goal was to study effects of TGFbeta on collagen cross-linking and...
article 2008
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de Jongh, H.H.J. (author), Wierenga, P.A. (author), TNO Kwaliteit van Leven (author)
There is an ongoing debate about whether a protein surface film at an air-water interface can be regarded as a gelled layer. There is literature reporting that such films show macroscopic fracture behavior and a rheology comparable to three-dimensional protein bulk-networks. If this is the case, a complete description of the formation of...
article 2006
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Martin, A.H. (author), Cohen Stuart, M.A. (author), Bos, M.A. (author), van Vliet, T. (author), TNO Kwaliteit van Leven (author)
The relation between mechanical film properties of various adsorbed protein layers at the air/water interface and intrinsic stability of the corresponding proteins is discussed. Mechanical film properties were determined by surface deformation in shear and dilation. In shear, fracture stress, σf, and fracture strain, γf, were determined, as well...
article 2005
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Wierenga, P.A. (author), Meinders, M.B.J. (author), Egmond, M.R. (author), Voragen, A.G.J. (author), de Jongh, H.H.J. (author), TNO Kwaliteit van Leven (author)
In this study a set of chemically engineered variants of ovalbumin was produced to study the effects of electrostatic charge on the adsorption kinetics and resulting surface pressure at the air-water interface. The modification itself was based on the coupling of succinic anhydride to lysine residues on the protein surface. After purification of...
article 2005
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Kudryashova, E.V. (author), Meinders, M.B.J. (author), Visser, A.J.W.G. (author), van Hoek, A. (author), de Jongh, H.H.J. (author)
The molecular properties of egg white ovalbumin adsorbed at the air/water interface were studied using infrared reflection absorption spectroscopy (IRRAS) and time-resolved fluorescence anisotropy (TRFA) techniques. Ovalbumin adsorbed at the air/ water interface adopts a characteristic partially unfolded conformation in which the content of the...
article 2003
Searched for: subject%3A%22Colloids%22
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