Searched for: subject%3A%22PDMS%22
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Wang, S. (author), Zong, Qihang (author), Yang, Huiru (author), Huang, Qianming (author), Ye, Huaiyu (author), French, P.J. (author)
In recent years, flexible strain sensors based on metal cracks have garnered significant interest for their exceptional sensitivity. However, striking a balance between sensitivity and detection range remains a significant challenge, which often limits its wider application. Herein, we introduce an innovative laser transmission pyrolysis...
conference paper 2024
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Yang, Huiru (author), Huang, Qianming (author), Wang, S. (author), Zong, Qihang (author), Tan, C. (author), Ye, H. (author), Zhang, Kouchi (author)
Flexible strain sensors play a crucial role in health monitoring, smart wearable devices, and human–machine interaction. Three-dimensional surface evaluation methods for strain sensors offer advantages by being closer to actual strain, featuring a larger working range, and being more suitable for multidirectional strain. In this study, a...
journal article 2024
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van Altena, P.F.J. (author), Accardo, A. (author)
The mechanical properties of two-photon-polymerised (2PP) polymers are highly dependent on the employed printing parameters. In particular, the mechanical features of elastomeric polymers, such as IP-PDMS, are important for cell culture studies as they can influence cell mechanobiological responses. Herein, we employed optical-interferometer...
journal article 2023
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Wang, S. (author), Zong, Qihang (author), Yang, Huiru (author), Tan, C. (author), Huang, Qianming (author), Liu, X. (author), Zhang, Kouchi (author), French, P.J. (author), Ye, H. (author)
The fabrication of flexible pressure sensors with low cost, high scalability, and easy fabrication is an essential driving force in developing flexible electronics, especially for high-performance sensors that require precise surface microstructures. However, optimizing complex fabrication processes and expensive microfabrication methods...
journal article 2023
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Wang, S. (author), Yang, Huiru (author), Zong, Qihang (author), Huang, Qianming (author), Tan, C. (author), Gao, Chenshan (author), Li, Shizhen (author), Ye, H. (author), Zhang, Kouchi (author), French, P.J. (author)
In recent years, metal crack-based stretchable flexible strain sensors have attracted significant attention in wearable device applications due to their extremely high sensitivity. However, the tradeoff between sensitivity and detection range has been an intractable dilemma, severely limiting their practical applications. Herein, we propose a...
journal article 2023
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Kasi, D.G. (author), de Graaf, M.N.S. (author), Motreuil-Ragot, P.A. (author), Frimat, Jean-Phillipe M. S. (author), Ferrari, Michel D. (author), Sarro, Pasqualina M (author), Mastrangeli, Massimo (author), van den Maagdenberg, Arn M.J.M. (author), Mummery, Christine (author), Orlova, Valeria (author)
Organ-on-a-chip (OoC) and microfluidic devices are conventionally produced using microfabrication procedures that require cleanrooms, silicon wafers, and photomasks. The prototyping stage often requires multiple iterations of design steps. A simplified prototyping process could therefore offer major advantages. Here, we describe a rapid and...
journal article 2022
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Visschers, Fabian L.L. (author), Massaad Mouawad, J.M. (author), van Neer, P.L.M.J. (author), Verweij, M.D. (author), Liu, Danqing (author), Broer, Dirk J. (author)
Coatings with dynamic surface structures are appealing to many applications like haptics and soft robotics. Restrictively, the speed of the surface dynamics in these coatings is often limited to frequencies below 1 kHz, which makes them unsuitable for applications like acoustics and communication optics. This work describes a method to create...
journal article 2022
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Li, X. (author)
The development of solid state lighting (SSL) has been involving with improving the luminaire efficiency and integrating non-luminous functions, also known as More than Illumination. The objective of this thesis is to investigate different solutions for the concept of More than Illumination for SSL applications, to combine general lighting with...
doctoral thesis 2020
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Velea, A. (author), Vollebregt, S. (author), Hosman, T.B. (author), Pak, A. (author), Giagka, Vasiliki (author)
This work aims to develop a smart neural interface with transparent electrodes to allow for electrical monitoring of the site of interest during optogenetic stimulation of the spinal cord. In this paper, a microfabrication process for the wafer-level development of such a compact, active, transparent and flexible implant is presented. Graphene...
conference paper 2020
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Nanbakhsh, K. (author), Ritasalo, R. (author), Serdijn, W.A. (author), Giagka, Vasiliki (author)
In this work, we investigate the insulating performance of an atomic layer deposited (ALD) HfO2 - polymer bilayer for platinum (Pt) metallization. As test vehicles, Pt interdigitated comb structures (IDC) were designed and fabricated on SiO2/Si substrates. The IDCs were first coated with a 100 nm thin HfO2 ALD layer. A group of samples was...
conference paper 2020
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Waafi, Affan K. (author), Gaio, N. (author), Quiros Solano, W.F. (author), Dijkstra, Paul (author), Sarro, Pasqualina 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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Quiros Solano, W.F. (author)
Drug development is a complex, time-consuming (10 - 15 years) and expensive process. For a new medicine to reach the market, the net expenses covered by the pharmaceutical industry have been estimated to be around $2.6 billion. Nevertheless, the risk of finding adverse effects or toxicity cases once the drug is already on the market is still...
doctoral thesis 2019
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Kumar, P. (author), Fanzio, P. (author), Sasso, L. (author), Langelaar, Matthijs (author)
The concept and synthesis approach for planar Compliant Fluidic Control Structures (CFCSs), monolithic flexible continua with embedded functional pores, is presented in this manuscript. Such structures are envisioned to find application in biomedicine as tunable microfluidic devices for drug/nutrient delivery. The functional pores enlarge and...
journal article 2019
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Costa, Adriana C. (author), Pimenta, Sara (author), Ribeiro, João F. (author), Silva, Manuel F. (author), Wolffenbuttel, R.F. (author), Dong, Tao (author), Yang, Zhaochu (author), Correia, José H. (author)
Minimally invasive medical devices can greatly benefit from Narrow Band Imaging (NBI) diagnostic capabilities, as different wavelengths allow penetration of distinct layers of the gastrointestinal tract mucosa, improving diagnostic accuracy and targeting different pathologies. An important performance parameter is the light intensity at a...
journal article 2019
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Quiros Solano, W.F. (author), Gaio, N. (author), Silvestri, C. (author), Pandraud, G. (author), Dekker, R. (author), Sarro, Pasqualina M (author)
Organ-on-chip (OOC) is becoming the alternative tool to conventional in vitro screening. Heart-on-chip devices including microstructures for mechanical and electrical stimulation have been demonstrated to be advantageous to study structural organization and maturation of heart cells. This paper presents the development of metal and polymeric...
journal article 2019
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Hou, Fuhua (author), Han, C. (author), Isabella, O. (author), Yan, Lingling (author), Shi, Biao (author), Chen, Junfan (author), An, Sichong (author), Zeman, M. (author)
Perovskite/silicon tandem solar cells (TSCs) have the potential to achieve power conversion efficiency exceeding 30%. To be compatible with high-efficiency solution-deposited perovskite top cell, a planar front surface for silicon bottom cell is generally required. However, flat front surfaces result in large light reflection losses and thus...
journal article 2019
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Joshi, S. (author)
Advancements in stretchable electronic systems have changed the way modern electronics interact with their target systems, by their conformability to more complex shapes as compared to conventional rigid or flexible electronics. By utilizing this, limitless applications in the field of healthcare can be realized, such as wearable and implantable...
doctoral thesis 2018
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Iannarelli, A. (author), Ghaffarian Niasar, M. (author)
Film pre-stretching is a widely adopted solution to improve dielectric strength of the DEA systems. However, to date, long term reliability of this solution has not been investigated. In this work it is explored how the dielectric elastomer lifetime is affected by film pre-stretching. The dielectric loss of soft polydimethylsiloxane (PDMS) films...
conference paper 2017
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Joshi, S. (author), Bagani, R. (author), Beckers, Lucas (author), Dekker, R. (author)
This paper reports the use of rubber—Polybutadiene as an intermediate adhesive layer for improving the adhesion between polyimide (PI) and silicone polydimethylsiloxane (PDMS) which is required for a reliable fabrication of flexible/stretchable body patches for various applications. The adhesive bond initiated by the butyl rubber (BR), apart...
conference paper 2017
document
Quiros Solano, W.F. (author), Gaio, N. (author), Silvestri, C. (author), Pandraud, G. (author), Sarro, Pasqualina M (author)
Sensing and stimulating microstructures are necessary to develop more specialized and highly accurate Organ-on-Chip (OOC) platforms. In this paper, we present the integration of a conductive polymer, poly (3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS), on a stretchable membrane, core element of an Heart-on-Chip. The electrical...
journal article 2016
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