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Waafi, Affan K. (author), Gaio, N. (author), Quiros Solano, W.F. (author), Dijkstra, Paul (author), Sarro, P.M. (author), Dekker, R. (author)
We present the first Organ-on-Chip equipped with a low-impedance Poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) MicroElectrode Array (MEA). The novel device allows simultaneous mechanical stimulation with a stretchable PDMS membrane and electrical monitoring via the PEDOT:PSS MEA of multiple in vitro cell cultures. The...
journal article 2020
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Fiorucci, Giulia (author), Coli, Gabriele M. (author), Padding, J.T. (author), Dijkstra, Marjolein (author)
We investigate the effect of hydrodynamic interactions (HIs) on the crystal nucleation of hard-sphere colloids for varying supersaturations. We use molecular dynamics and stochastic rotation dynamics techniques to account for the HIs. For high supersaturation values, we perform brute force simulations and compute the nucleation rate,...
journal article 2020
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Kiragosyan, Karine (author), Picard, Magali (author), Sorokin, Dimitry Y. (author), Dijkstra, Jelmer (author), Klok, Johannes B.M. (author), Roman, Pawel (author), Janssen, Albert J.H. (author)
Removal of organic and inorganic sulfur compounds from sour gases is required because of their toxicity and atmospheric pollution. The most common are hydrogen sulfide (H<sub>2</sub>S) and methanethiol (MT). Under oxygen-limiting conditions about 92 mol% of sulfide is oxidized to sulfur by haloalkaliphilic sulfur-oxidizing bacteria (SOB),...
journal article 2020
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Unger, Eva-Maria (author), Bennett, Rohan (author), Lemmen, Christiaan (author), Zevenbergen, Jaap (author), Dijkstra, Paula (author), de Zeeuw, Kees (author)
The 2030 Agenda for Sustainable Development with its defined Sustainable Development Goals (SDGs), together with other policies such as the Sendai Framework for Disaster Risk Reduction, or the Voluntary Guidelines on the Responsible Governance of Tenure of Land, Fisheries and Forests in the Context of National Food Security (VGGT) stimulate...
conference paper 2019
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Vural Gursel, Iris (author), Dijkstra, Jan W. (author), Huijgen, Wouter J.J. (author), Ramirez, Andrea (author)
This paper presents a techno-economic assessment of three novel routes for the production of bio-based aromatics from lignin. It aims to provide insights into their feasibility and hotspots at an early stage of development to guide further research and development and to facilitate commercialization. The lignin conversion routes are: (non...
journal article 2019
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Dijkstra, Y.M. (author)
Within estuaries one can often observe areas where the concentration of fine suspended sediments is higher than in the surrounding waters, called estuarine turbidity maxima (ETM). ETM play an important role in the natural and socio-economic value of estuaries. The suspended sediments can for example greatly diminish the value of the estuarine...
doctoral thesis 2019
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Dijkstra, Y.M. (author), Schuttelaars, H.M. (author), Schramkowski, G.P. (author)
We investigate the hypothesis by Winterwerp and Wang (Ocean Dyn 63:1279–1292, 2013) that channel deepening in the Scheldt River Estuary could lead to a large increase in suspended sediment concentrations, with subsequent severe consequences to primary production and navigation. To this end, we use an idealised model to investigate the long...
journal article 2019
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Verschuure-Stuip, G.A. (author), Dijkstra, C.M. (author)
This paper advocates a renewed attitude towards our urban nature, recognizing its trees as green heritage with the capability to increase the liveability of urban areas (SDG11). Planting trees in the Dutch public space started in the seventeenth century and cities became famous for its green atmosphere (1). In the agricultural landscape, trees...
abstract 2019
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Fiorucci, Giulia (author), Padding, J.T. (author), Dijkstra, Marjolein (author)
Although the self-alignment of asymmetric macro-sized objects of a few tens of microns in size have been studied extensively in experiments and theory, access to much smaller length scales is still hindered by technical challenges. We combine molecular dynamics and stochastic rotation dynamics techniques to investigate the self-orientation...
journal article 2019
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van der Boog, C.G. (author), de Jong, M. F. (author), Scheidat, M. (author), Leopold, M. F. (author), Geelhoed, S. C.V. (author), Schulz, K. (author), Pietrzak, J.D. (author), Katsman, C.A. (author), Dijkstra, H.A. (author)
In the Caribbean Sea, mesoscale anticyclonic ocean eddies impact the local ecosystem by mixing of low salinity river outflow with the nutrient-rich waters upwelling along the Venezuelan and Colombian coast. To gain insight into the physics and the ecological impact of these anticyclones, we performed a combined hydrographic and biological...
journal article 2019
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van der Boog, C.G. (author), Pietrzak, J.D. (author), Dijkstra, Henk A. (author), Brüggemann, N. (author), Van Westen, René M. (author), James, Rebecca K. (author), Bouma, Tjeerd J. (author), Riva, R.E.M. (author), Slobbe, D.C. (author), Klees, R. (author), Zijlema, M. (author), Katsman, C.A. (author)
The mesoscale variability in the Caribbean Sea is dominated by anticyclonic eddies that are formed in the eastern part of the basin. These anticyclones intensify on their path westward while they pass the coastal upwelling region along the Venezuelan and Colombian coast. In this study, we used a regional model to show that this westward...
journal article 2019
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Dijkstra, Y.M. (author), Chant, Robert J. (author), Reinfelder, John R. (author)
Phytoplankton biomass in estuaries is controlled by complex biological and chemical processes that control growth and mortality, and physical processes that control transport and dilution. The effects of these processes on phytoplankton blooms were systematically analyzed, focusing on identifying the dominant controlling factors out of river...
journal article 2019
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Ypma, S.F. (author), Brüggemann, N. (author), Georgiou, S. (author), Spence, P. (author), Dijkstra, H. A. (author), Pietrzak, J.D. (author), Katsman, C.A. (author)
The pathways and watermass transformation of the North Icelandic Irminger Current (NIIC) in the Nordic Seas are investigated by tracing the NIIC watermass in two ocean circulation models: the Modular Ocean Model (MOM) and the Parallel Ocean Program (POP). The two simulations use identical atmospheric forcing and have a horizontal resolution of 0...
journal article 2019
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Dijkstra, Y.M. (author), Schuttelaars, H.M. (author), Schramkowski, G.P. (author)
Many estuaries are strongly deepened to improve navigation, with sometimes large and poorly understood consequences to suspended sediment dynamics. To improve understanding of such large changes, we study the Ems River Estuary, where a regime shift from low to high sediment concentrations was observed after deepening. The aim of this study is...
journal article 2019
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Dijkstra, Y.M. (author), Schuttelaars, H.M. (author), Schramkowski, G.P. (author), Brouwer, R.L. (author)
Many estuaries are strongly modified by human interventions, including substantive channel deepening. In the Ems River Estuary (Germany and Netherlands), channel deepening between the 1960s and early 2000s coincided with an increase in the maximum near-bed suspended sediment concentration from moderate (∼1 kg/m <sup>3</sup> ) to high (&gt;10...
journal article 2019
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Sayol Espana, J.M. (author), Dijkstra, Henk A. (author), Katsman, C.A. (author)
Previous studies have indicated that most of the net sinking associated with the downward branch of the Atlantic Meridional Overturning Circulation (AMOC) must occur near the subpolar North Atlantic boundaries. In this work we have used monthly mean fields of a high-resolution ocean model (0.1 at the Equator) to quantify this sinking. To this...
journal article 2019
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Hanssen, Lucien (author), Dijkstra, Anne M. (author), Sleenhoff, S. (author), Frewer, Lynn J. (author), Gutteling, Jan M. (author)
Genetic Modification (GM) has been a topic of public debates during the 1990s and 2000s. In this paper we explore the relative importance of two hypothesized explanations for these controversies: (i) people's general attitude toward science and technology and (ii) their trust in governance, in GM actors, and in GM regulations, in explaining the...
journal article 2018
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van Westen, René M. (author), Dijkstra, Henk A. (author), Klees, R. (author), Riva, R.E.M. (author), Slobbe, D.C. (author), van der Boog, C.G. (author), Katsman, C.A. (author), Candy, A.S. (author), Pietrzak, J.D. (author), Zijlema, M. (author), James, Rebecca K. (author), Bouma, Tjeerd J. (author)
The Yucatan Channel connects the Caribbean Sea with the Gulf of Mexico and is the main outflow region of the Caribbean Sea. Moorings in the Yucatan Channel show high-frequent variability in kinetic energy (50–100 days) and transport (20–40 days), but the physical mechanisms controlling this variability are poorly understood. In this study, we...
journal article 2018
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Brouwer, R.L. (author), Schramkowski, G.P. (author), Dijkstra, Y.M. (author), Schuttelaars, H.M. (author)
Using an idealized width-averaged process-based model, the role of a mud pool on the bed and time-varying river discharge on the trapping of fine sediment is systematically investigated. For this purpose, a dynamically and physically motivated description of erodibility is presented, which relates the amount of sediment on the bed to the...
journal article 2018
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Dijkstra, Y.M. (author), Schuttelaars, H.M. (author), Winterwerp, J.C. (author)
Over the last few decades, some estuaries have undergone a transition to a hyperturbid state, characterised by suspended sediment concentrations of several grammes per litre averaged over the water column. To improve our understanding of this transition and of naturally hyperturbid estuaries, we systematically identify the processes allowing...
journal article 2018
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