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Pols, C.F.J. (author), Duynkerke, Lennard (author), Van Arragon, Jels (author), Van Prooijen, Kevin (author), Van Der Goot, Luuk (author), Bera, B. (author)As part of the final projects of our introductory lab course, students conceived experiments related to the umbrella topic of 'Physics of toys and sports' and carried out the experiments at their homes. This paper revisits two of these experiments described by student teams and illustrates how self-conceived experiments provide opportunities...journal article 2021
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Chaykina, D. (author), De Krom, T. (author), Colombi, G. (author), Schreuders, H. (author), Suter, A. (author), Prokscha, T. (author), Dam, B. (author), Eijt, S.W.H. (author)Thin films of rare-earth metal oxyhydrides, such as yttrium oxyhydrides (YH3-2xOx), show a photochromic effect where the transparency of the films decreases reversibly upon exposure to UV light. However, the exact mechanism behind this effect is unknown. In this paper, we describe the behavior of YH3-2xOx thin films, with different O2-:H-...journal article 2021
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Lehner, B. (author), Benz, D. (author), Moshkalev, Stanislav A. (author), Meyer, Anne S. (author), Cotta, Monica A. (author), Janissen, R. (author)Graphene oxide (GO) has immense potential for widespread use in diverse in vitro and in vivo biomedical applications owing to its thermal and chemical resistance, excellent electrical properties and solubility, and high surface-to-volume ratio. However, development of GO-based biological nanocomposites and biosensors has been hampered by its...journal article 2021
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Bannenberg, L.J. (author), Schreuders, H. (author), Kim, H.J. (author), Sakaki, Kouji (author), Hayashi, Shigenobu (author), Ikeda, Kazutaka (author), Otomo, Toshiya (author), Dam, B. (author), Asano, Kohta (author)Metal hydrides may play a paramount role in a future hydrogen economy. While most applications are based on nanostructured and confined materials, studies considering the structural response of these materials to hydrogen concentrate on bulk material. Here, using in situ in- and out-of-plane X-ray diffraction and reflectometry, we study the fcc ...journal article 2021
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Chaykina, D. (author), Nafezarefi, F. (author), Colombi, G. (author), Cornelius, S. (author), Bannenberg, L.J. (author), Schreuders, H. (author), Dam, B. (author)Thin films of rare earth metal oxyhydrides show a photochromic effect, the precise mechanism of which is yet unknown. Here, we made thin films of NdH3-2xOx and show that we can change the band gap, crystal structure, and photochromic contrast by tuning the composition (O2-:H-) via the sputtering deposition pressure. To protect these films...journal article 2021
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Wang, N. (author), Verzijlbergh, R.A. (author), Heijnen, P.W. (author), Herder, P.M. (author)This paper reviews the literature on the modeling approaches on decentralized energy investment and operation in the prosumer era. The study has several contributions. Firstly, it adds investment models into the review which have not been previously reviewed for decentralized energy modeling. Secondly, a modeling framework consisting of four...conference paper 2020
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Kloosterman, Ritsche A. (author), van der Hoek, J.P. (author), Herder, P.M. (author)A significant challenge for managers of drinking water infrastructures is to make effective strategic decisions for assets with a long lifetime in an uncertain and changing environment. Water resources, which are part of the drinking water infrastructures, have a special position in this decision making process as they operate at the...journal article 2020
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Feinberg, A. (author), Ghorbani, Amineh (author), Herder, P.M. (author)In this paper, we investigate the potential of urban commons for building community resilience. We focus on the issue of adaptability to socio-ecological issues, which depends on the social capital built by the local community of practice. We measure this capital through the variables of volunteer involvement, perceived trust, and social...journal article 2020
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Eijt, S.W.H. (author), De Krom, T. W.H. (author), Chaykina, D. (author), Schut, H. (author), Colombi, G. (author), Cornelius, S. (author), Egger, W. (author), Dickmann, M. (author), Dam, B. (author)Doppler broadening positron annihilation spectroscopy depth profiles were collected on photochromic YO<sub>x</sub>H<sub>y</sub> thin films. In situ UV illumination of photochromic semiconductor YO<sub>x</sub>H<sub>y</sub> films leads to an increase in S-parameter and a large reduction in W-parameter, possibly caused by a change in the charge...journal article 2020
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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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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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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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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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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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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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Márquez, Nathalie (author), Moulijn, J.A. (author), Makkee, M. (author), Kreutzer, M.T. (author), Castaño, Pedro (author)We describe the co-current flow pattern of gas and liquid through micro-fabricated beds of solid and pillars under variable (i) capillary number, (ii) contact angle or wettability and (iii) pillar arrangement, i.e. modifying the distance between pillars or their size and comparing regular with more chaotic systems. Laser-induced fluorescent...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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Numerical analysis of natural convection with conjugate heat transfer in coarse-grained porous mediaChakkingal, 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