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Sekar, S.A. (author), Hunt, A. (author)Additive manufacturing of sensors and actuators together with structural materials and electronics will make it possible to fabricate innovative system designs that are overly laborious to realise with conventional methods. While printing of the structural materials and electronics are advancing fast, the additive manufacturing methods for...journal article 2024
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IJssel de Schepper, S.R. (author), Hunt, A. (author)The additive manufacturing of electroactive polymer (EAP) devices poses significant challenges due to their distinct structure and dissimilar properties of their constituent materials. It requires deposition of multiple functional materials with different properties, achieving μm-scale resolution in layer thickness, and executing incremental...journal article 2024
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Elsinga, G.E. (author), Ishihara, Takashi (author), Hunt, J.C.R. (author)Direct numerical simulations up to Reλ = 1445 show that the scaling exponents for the enstrophy and the dissipation rate extrema are different and depend on the Reynolds number. A similar Reynolds number dependence of the scaling exponents is observed for the moments of the dissipation rate, but not for the moments of the enstrophy. Significant...journal article 2023
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Ronaes, E.P. (author), Hunt, A. (author), Hassan HosseinNia, S. (author)The recent development of a hybrid tunable magnet actuator proposes to eliminate Joule heating when maintaining a force or position offset. By controlling the remnant magnetic flux in an AlNiCo magnet within the actuator, the actuation force can be linearly varied and maintained. While a method for tuning the magnetisation state of the magnet...journal article 2023
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Motreuil-Ragot, P.A. (author), Hunt, A. (author), Sacco, L.N. (author), Sarro, Pasqualina M (author), Mastrangeli, Massimo (author)Ionic polymer metal composites (IPMCs) are a class of materials with a rising appeal in biological micro-electromechanical systems (bio-MEMS) due to their unique properties (low voltage output, bio-compatibility, affinity with ionic medium). While tailoring and improving actuation capabilities of IPMCs is a key motivator in almost all IPMC...journal article 2023
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Baelz, K.K. (author), Hunt, A. (author)To facilitate smart material transducer research and application, it is important to develop fabrication processes that are widely accessible and compatible with additive manufacturing (AM) techniques. This work addresses inkjet printing and material selection in the fabrication of bending cantilever actuators based on the P(VDF-TrFE-CTFE)...conference paper 2023
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Luna-Navarro, Alessandra (author), Hunt, Gary R. (author), Overend, M. (author)Building occupants interact frequently with façades. These interactions simultaneously affect several domains of the indoor environment (visual, thermal, air quality and acoustic) and occupant perception, as well as the energy performance of the façades. Yet this multi-domain relationship between façade and occupant is not well understood....journal article 2022
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Saravana Jothi, N. S. (author), Hunt, A. (author)Metamaterials are artificially structured materials and exhibit properties that are uncommon or non-existent in nature. Mechanical metamaterials show exotic mechanical properties, such as negative stiffness, vanishing shear modulus, or negative Poisson's ratio. These properties stem from the geometry and arrangement of the metamaterial unit...journal article 2022
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Motreuil-Ragot, P.A. (author), Turcan, G. (author), de Wagenaar, B. (author), Hunt, A. (author), Sarro, Pasqualina M (author), Mastrangeli, Massimo (author)Sensing flow rates in structured microenvironments like lab-on-chip (LOC) and organ-on-chip (OoC) is crucial to assess important parameters such as transport of media and molecules of interest. So far, these micro-electromechanical systems for biology (bio-MEMS) mostly rely on flow sensing systems based on thermal sensors. However, thermal...conference paper 2022
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Elsinga, G.E. (author), Ishihara, T. (author), Hunt, J. C.R. (author)The Richardson-scaling law states that the mean square separation of a fluid particle pair grows according to twithin the inertial range and at intermediate times. The theories predicting this scaling regime assume that the pair separation is within the inertial range and that the dispersion is local, which means that only eddies at the scale...journal article 2022
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Schrama, F.N.H. (author), Beunder, Elisabeth M. (author), Panda, Sourav K. (author), Visser, Hessel Jan (author), Moosavi-Khoonsari, Elmira (author), Hunt, Adam (author), Sietsma, J. (author), Boom, R. (author), Yang, Y. (author)The optimal hot metal desulphurisation (HMD) slag is defined as a slag with a sufficient sulphur removal capacity and a low apparent viscosity (η<sub>slag</sub>) which leads to low iron losses. In part I of this study, the fundamentals behind the optimal slag were discussed. In this part these fundamentals are explored by a Monte Carlo...journal article 2021
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Fang, Juan (author), Haldimann, Michael (author), Marchal Crespo, L. (author), Hunt, Kenneth J. (author)In a parallel development to traditional rigid rehabilitation robotic systems, cable-driven systems are becoming popular. The robowalk expander product uses passive elastic bands in the training of the lower limbs. However, a well-controlled assistance or resistance is desirable for effective walking relearning and muscle training. To achieve...journal article 2021
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Motreuil-Ragot, P.A. (author), Hunt, A. (author), Kasi, Dhanesh (author), Brajon, B. (author), van den Maagdenberg, Arn M.J.M. (author), Orlova, Valeria (author), Mastrangeli, Massimo (author), Sarro, Pasqualina M (author)Organ-on-chip (OoC) devices are in rising demand for high-throughput and low-cost development and toxico-logical screening of chemicals and pharmaceuticals, as they accurately mimic in vitro physiological conditions as in the human body. In particular, OoCs are urgently needed for screening cardiovascular drug toxicity. Physiological relevance...conference paper 2020
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Schrama, F.N.H. (author), Ji, Fuzhong (author), Hunt, Adam (author), Beunder, Elisabeth M. (author), Woolf, Rhian (author), Tuling, Alison (author), Warren, Peter (author), Sietsma, J. (author), Boom, R. (author), Yang, Y. (author)To lower the iron losses of the hot metal desulphurisation (HMD) process, slag modifiers can be added to the slag. Slag modifiers decrease the apparent viscosity of the HMD slag. Most common slag modifiers in industry contain fluoride as a fluidiser. However, fluoride leads to a higher magnesium consumption and has health, safety and...journal article 2020
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Mohd Isa, W.H.B. (author), Hunt, A. (author), Hassan HosseinNia, S. (author)Limitations of conventional actuators and sensors in small-scaled and complex devices have diverted the researches' attentions towards smart material transducers such as ionic polymer-metal composites (IPMCs). In addition to actuation capabilities, IPMCs generate voltage when subjected to mechanical deformation. Utilization of IPMCs as...conference paper 2020
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Sideris, Eva Ann (author), De Lange, Hendrik Cornelis (author), Hunt, A. (author)Microfluidic devices and micro-pumps are increasingly necessitated in many fields ranging from untethered soft robots, to pharmaceutical and biomedical technology. While realization of such devices is limited by miniaturization constraints of conventional actuators, these restrictions can be resolved by using smart material transducers...journal article 2020
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Motreuil-Ragot, P.A. (author), Hunt, A. (author), Kasi, Danesh (author), Brajon, B. (author), van den Maagdenberg, Arn M.J.M. (author), Orlova, Valeria (author), Mastrangeli, Massimo (author), Sarro, Pasqualina M (author)•Actuation has been succesfully performed for 2h30 with no side effects nor<br/>delimination of the human tissue <br/>•0.1 % strain has been achieved during the actutaion mode, close to the<br/>strain experienced in vivo by vSMCs <br/>•0.72 V/mm sensitivity has been shown on the sensing mode <br/>•Batch fabrication and downscaling will be...poster 2019
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Mohd Isa, W.H.B. (author), Hunt, A. (author), Hassan HosseinNia, S. (author)Ionic polymer-metal composites (IPMCs) are soft transducers that bend in response to low-voltage input, and generate voltage in response to deformations. Their potential applications include compliant locomotion systems, small-scale robotics, energy harvesting and biomedical instrumentation. The materials are inherently compliant, simple to...conference paper 2019
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Mohd Isa, W.H.B. (author), Hunt, A. (author), Hassan HosseinNia, S. (author)Ionic polymer–metal composites (IPMC) are smart material transducers that bend in response to low-voltage stimuli and generate voltage in response to bending. IPMCs are mechanically compliant, simple in construction, and easy to cut into desired shape. This allows the designing of novel sensing and actuation systems, e.g., for soft and bio...review 2019
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Viho, Eva M.G. (author), Buurstede, Jacobus C. (author), Mahfouz, A.M.E.T.A. (author), Koorneef, Lisa L. (author), Van Weert, Lisa T.C.M. (author), Houtman, René (author), Hunt, Hazel J. (author), Kroon, Jan (author), Meijer, Onno C. (author)Glucocorticoid hormones have important effects on brain function in the context of acute and chronic stress. Many of these are mediated by the glucocorticoid receptor (GR). GR has transcriptional activity which is highly context-specific and differs between tissues and even between cell types. The outcome of GR-mediated transcription depends...journal article 2019
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