Polydimethylsiloxane material as hydrophobic and insulating layer in electrowetting-on-dielectric systems

Caputo, D.; Cesare, G. de; Vecchio, N. Lo; Nascetti, A.; Parisi, Emanuele; Scipinotti, R.

doi:10.1016/j.mejo.2014.05.016

Cited by 35 publications

(18 citation statements)

References 16 publications

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“…PDMS was first used in biomedical and organic applications [1], and it protects against corrosion as a coating for metal substrates [2] and it is extensively used on the manufacturing of lab-on-a-chip devices [3]. Besides, the hydrophobic and insulating character of PDMS makes it possible to expand its applications, such as electrowetting-on-dielectric systems [4]. However, PDMS is mainly used as an adhesive, because its inorganic backbone provides unique properties.…”

Section: Introductionmentioning

confidence: 99%

Environmentally Friendly Plasma Activation of Acrylonitrile–Butadiene–Styrene and Polydimethylsiloxane Surfaces to Improve Paint Adhesion

2018

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Generally, polymeric materials present an issue related to their low surface energy: low painting ability. The main aim of this work is to improve the adhesion between polymeric surfaces (polydimethylsiloxane (PDMS), and acrylonitrile-butadiene-styrene (ABS)) and paints (epoxy (EP), and polyurethane (PU)-based). In order to increase adhesion, hydrophilic modification of surfaces by atmospheric pressure plasma torch treatment (APPT) was proposed. Furthermore, it can permit dissimilar joints, i.e., ABS with a metal joined by a silicone (based PDMS), to be painted. The surface modifications were characterized by measurements of surface energy and roughness. In addition, the effectiveness of the pre-treatment on improving paint adhesion was confirmed by scratch, cross-cut, and adhesion tests. Results showed the possibility of coating both ABS and PDMS with a PU-based paint when treated with plasma. As a novel result, polymer and metal panels joined by silicone were able to be painted with the PU paint.

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Section: Introductionmentioning

confidence: 99%

Environmentally Friendly Plasma Activation of Acrylonitrile–Butadiene–Styrene and Polydimethylsiloxane Surfaces to Improve Paint Adhesion

2018

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“…UV curable resins (e.g., SU-8, EMD6415, aluminum oxide-resin composite, epoxy-based resins) [27,[59][60][61] have been used for devices such as metal-insulator-metal capacitors and for smart textiles. Polydimethylsiloxane (PDMS) is another widely used silicon-based organic polymer that is employed for its insulating properties as well as its hydrophobicity after cross-linking [62].…”

Section: Non-metallic Inksmentioning

confidence: 99%

Printed Electronics as Prepared by Inkjet Printing

2020

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Inkjet printing has been used to produce a range of printed electronic devices, such as solar panels, sensors, and transistors. This article discusses inkjet printing and its employment in the field of printed electronics. First, printing as a field is introduced before focusing on inkjet printing. The materials that can be employed as inks are then introduced, leading to an overview of wetting, which explains the influences that determine print morphology. The article considers how the printing parameters can affect device performance and how one can account for these influences. The article concludes with a discussion on adhesion. The aim is to illustrate that the factors chosen in the fabrication process, such as dot spacing and sintering conditions, will influence the performance of the device.

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“…This would make EWOD compatible with standard low voltage electrical systems (no need for expensive amplifiers and switches), while still allowing for high speed droplet actuation [55]. Others have used relatively porous dielectrics like PDMS which are infused with the continuous oil phase, ensuring low hysteresis and sufficient hydrophobicity [26,56]. It is interesting to see how an open source project like DropBot brings researchers together to make EWOD cheaper, automated, more reliable and effectively crossing the divide between laboratory research and commercial application [57].…”

Section: Ewod/dmfmentioning

confidence: 99%

Droplet Manipulations in Two Phase Flow Microfluidics

2015

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Even though droplet microfluidics has been developed since the early 1980s, the number of applications that have resulted in commercial products is still relatively small. This is partly due to an ongoing maturation and integration of existing methods, but possibly also because of the emergence of new techniques, whose potential has not been fully realized. This review summarizes the currently existing techniques for manipulating droplets in two-phase flow microfluidics. Specifically, very recent developments like the use of acoustic waves, magnetic fields, surface energy wells, and electrostatic traps and rails are discussed. The physical principles are explained, and (potential) advantages and drawbacks of different methods in the sense of versatility, flexibility, tunability and durability are discussed, where possible, per technique and per droplet operation: generation, transport, sorting, coalescence and splitting.

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Polydimethylsiloxane material as hydrophobic and insulating layer in electrowetting-on-dielectric systems

Cited by 35 publications

References 16 publications

Environmentally Friendly Plasma Activation of Acrylonitrile–Butadiene–Styrene and Polydimethylsiloxane Surfaces to Improve Paint Adhesion

Environmentally Friendly Plasma Activation of Acrylonitrile–Butadiene–Styrene and Polydimethylsiloxane Surfaces to Improve Paint Adhesion

Printed Electronics as Prepared by Inkjet Printing

Droplet Manipulations in Two Phase Flow Microfluidics

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