Searched for: department:"ChemE%5C%7Eslsh%7EChemical%5C+Engineering"
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Sachdev, S. (author), Feijoo Moreira, Sara (author), Keehnen, Yasmine (author), Rems, L. (author), Kreutzer, M.T. (author), Boukany, P. (author)
Size of DNA molecules governs their interaction with the cell membrane during electroporation and their subsequent transport inside the cell. In order to investigate the effect of DNA size on DNA-membrane interaction during electroporation, cells are electro-pulsed with DNA molecules; 15 bp, 25 bp, 50 bp, 100 bp and 1000 bp (bp = base pairs)....
journal article 2020
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Westsson, E.E. (author)
The increasing energy demand of the world population in combination with tangible climate change effects stemming from rising carbon dioxide emissions is currently characterizing a large portion of the political and societal debate. Despite huge technological advancement in the field of renewable energy resulting in energy prices lower than that...
doctoral thesis 2019
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Saaid, Hicham (author), Voorneveld, Jason (author), Schinkel, C.V. (author), Westenberg, Jos (author), Gijsen, F.J.H. (author), Segers, Patrick (author), Verdonck, Pascal (author), de Jong, N. (author), Kenjeres, S. (author)
Left ventricular flow is intrinsically complex, three-dimensional and unsteady. Its features are susceptible to cardiovascular pathology and treatment, in particular to surgical interventions involving the valves (mitral valve replacement). To improve our understanding of intraventricular fluid mechanics and the impact of various types of...
journal article 2019
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Altway, S. (author), Pujar, S.C. (author), de Haan, A.B. (author)
HMF (5-hydroxymethylfurfural) is a well-known promising product from hexose dehydration used for production of biofuels and chemicals. Liquid-liquid extraction is an essential process in HMF production to recover HMF from reaction medium. One of the important parameters needed in the extraction process design is liquid-liquid equilibrium (LLE...
journal article 2019
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Chakkingal, M. (author), Kenjeres, S. (author), Ataei Dadavi, I. (author), Tummers, M.J. (author), Kleijn, C.R. (author)
We report numerical simulations of fluid natural convection with conjugate heat transfer in a bottom-heated, top-cooled cubical cavity packed with relatively large (d/L=0.2) solid spheres in a Body Centred Tetragonal (BCT) configuration. We study largely varying solid-to-fluid thermal conductivity ratios between 0.3 and 198, for a fluid...
journal article 2019
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Shah, M.S. (author), van Steijn, V. (author), Kleijn, C.R. (author), Kreutzer, M.T. (author)
Thermal fluctuations have been shown to influence the thinning dynamics of planar thin liquid films, bringing predicted rupture times closer to experiments. Most liquid films in nature and industry are, however, non-planar. Thinning of such films not just results from the interplay between stabilizing surface tension forces and destabilizing...
journal article 2019
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Haringa, C. (author), De Jong, Conrad (author), Hoang, D. (author), Portela, L. (author), Kleijn, C.R. (author), Kreutzer, M.T. (author), van Steijn, V. (author)
We show experimentally, and explain theoretically, what velocity is needed to break an elongated droplet entering a microfluidic T-junction. Our experiments on short droplets confirm previous experimental and theoretical work that shows that the critical velocity for breakup scales with the inverse of the length of the droplet raised to the...
journal article 2019
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Visan, Aura (author), van Ommen, J.R. (author), Kreutzer, M.T. (author), Lammertink, Rob G.H. (author)
This review addresses the inconsistencies in interpreting measurements of intrinsic catalyst properties using lab-scale devices. Any experiment must be analyzed in the framework of a model for which the choice and assumptions regarding the necessary parameters must be based on critical reasoning. Physical intuition about the properties of the...
journal article 2019
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Lovrak, M. (author), Hendriksen, W.E.J. (author), Kreutzer, M.T. (author), van Steijn, V. (author), Eelkema, R. (author), van Esch, J.H. (author)
Controlled diffusion, reaction and assembly of hydrogelator precursors can be used to create soft hydrogel objects of defined shape and size. In this study we show that controlling local reaction kinetics by means of pH, diffusion length and the concentrations of reactants allows control over the dimensions of formed supramolecular structures....
journal article 2019
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Gudjónsdóttir, S. (author), van der Stam, W. (author), Koopman, Christel (author), Kwakkenbos, Bob (author), Evers, W.H. (author), Houtepen, A.J. (author)
Semiconductor films that allow facile ion transport can be electronically doped via electrochemistry, where the amount of injected charge can be controlled by the potential applied. To apply electrochemical doping to the design of semiconductor devices, the injected charge has to be stabilized to avoid unintentional relaxation back to the...
journal article 2019
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Perrier, D.L. (author), Vahid Belarghou, A. (author), Kathavi, Vaishnavi (author), Stam, Lotte (author), Rems, L. (author), Mulla, Yuval (author), Muralidharan, A. (author), Koenderink, Gijsje H. (author), Kreutzer, M.T. (author), Boukany, P. (author)
We study the role of a biomimetic actin network during the application of electric pulses that induce electroporation or electropermeabilization, using giant unilamellar vesicles (GUVs) as a model system. The actin cortex, a subjacently attached interconnected network of actin filaments, regulates the shape and mechanical properties of the...
journal article 2019
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Sachdev, S. (author), Muralidharan, A. (author), Choudhary, Dipendra K. (author), Perrier, D.L. (author), Rems, L. (author), Kreutzer, M.T. (author), Boukany, P. (author)
Delivery of naked DNA molecules into living cells via physical disruption of the membrane under electric pulses has potential biomedical applications ranging from gene electro-transfer, electro-chemotherapy, to gene therapy, yet the mechanisms involved in DNA transport remain vague. To investigate the mechanism of DNA translocation across the...
journal article 2019
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Kreutzer, M.T. (author), Shah, M.M. (author), Parthiban, Pravien (author), Khan, S.A. (author)
We experimentally and theoretically describe the dynamics of evolution and eventual rupture of Landau-Levich-Bretherton films of partially wetting liquids in microchannels in terms of nonplanar interface curvatures and disjoining pressure. While both the early-stage dynamics of film evolution and near-collapse dynamics of rupture are...
journal article 2018
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Perrier, D.L. (author), Rems, L. (author), Kreutzer, M.T. (author), Boukany, P. (author)
Transient permeabilisation of the cell membrane is a critical step to introduce drugs or DNA into living cells, yet challenging for both biological research and therapeutic applications. To achieve this, electroporation (or electropermeabilisation) has become a widely used method due to its simplicity to deliver almost any biomolecule to any...
journal article 2018
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Gudjónsdóttir, S. (author), van der Stam, W. (author), Kirkwood, Nicholas (author), Evers, W.H. (author), Houtepen, A.J. (author)
Control over the charge density is very important for implementation of colloidal semiconductor nanocrystals into various optoelectronic applications. A promising approach to dope nanocrystal assemblies is charge injection by electrochemistry, in which the charge compensating electrolyte ions can be regarded as external dopant ions. To gain...
journal article 2018
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Grillo, F. (author), la Zara, D. (author), Mulder, P.C.M. (author), Kreutzer, M.T. (author), Ruud Van Ommen, J. (author)
Understanding the spontaneous organization of atoms on well-defined surfaces promises to enable control over the shape and size of supported nanostructures. Atomic layer deposition (ALD) boasts atomic-scale control in the synthesis of thin films and nanoparticles. Yet, the possibility to control the shape of ALD-grown nanostructures remains...
journal article 2018
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Gnanasundaram, Nirmala (author), Venugopal, Aswin (author), Katragadda, Y. (author), Ullas, Gokul (author)
Circulating fluidized beds (CFB) play a major role in the chemical industry especially as heterogeneous catalytic reactors. Research on hydrodynamic properties of Liquid - Solid CFBs (LSCFB) is significantly under-reported as compared to Gas - Solid CFBs (GSCFB). Steadily, prominent research is being established in fields like food industry ...
journal article 2017
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Kawale, D. (author), Bouwman, G.W. (author), Sachdev, S. (author), Zitha, P.L.J. (author), Kreutzer, M.T. (author), Rossen, W.R. (author), Boukany, P. (author)
Molecular conformations of individual polymers during flow through porous media are directly observed by single-DNA imaging in microfluidics. As the Weissenberg number increases during flow (Wi > 1), we observe two types of elastic instabilities: (a) stationary dead-zone and (b) time-dependant dead-zone washing. When stretched polymer chains...
journal article 2017
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Bui, H.V. (author), Grillo, F. (author), Kulkarni, S.S. (author), Bevaart, Ronald (author), Nguyên, V.T. (author), van der Linden, B. (author), Moulijn, J.A. (author), Makkee, M. (author), Kreutzer, M.T. (author), van Ommen, J.R. (author)
We tailored the size distribution of Pt nanoparticles (NPs) on graphene nanoplatelets at a given metal loading by using low-temperature atomic layer deposition carried out in a fluidized bed reactor operated at atmospheric pressure. The Pt NPs deposited at low temperature (100 °C) after 10 cycles were more active and stable towards the...
journal article 2017
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Valdesueiro, David (author), Hettinga, Hans (author), Drijfhout, Jan Pieter (author), Lips, Priscilla (author), Meesters, G.M.H. (author), Kreutzer, M.T. (author), van Ommen, J.R. (author)
In this work, we report a method to change the surface finish of a standard polyester-based powder coating paint, from gloss to matt, by depositing ultrathin films of Al<sub>2</sub>O<sub>3</sub> on the powder coating particles. The coating experiments were performed in a fluidized bed reactor at 1 bar and 27 °C, using a gas-phase coating...
journal article 2017
Searched for: department:"ChemE%5C%7Eslsh%7EChemical%5C+Engineering"
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