Multi-droplets non-coalescence on open-chip electrowetting platform

Lathia, R and Sagar, N and Sen, P (2022) Multi-droplets non-coalescence on open-chip electrowetting platform. In: European Physical Journal: Special Topics .

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Abstract

The droplet non-coalescence is an interesting phenomenon that is observed in nature. This phenomenon of non-coalescence is slightly counter-intuitive as we expect liquid interfaces of the same surface tension to merge when they come in contact. However, with the help of modulating oil film in between the liquid interface, non-coalescence is observed for long durations. In this work, we have achieved the non-coalescence of multiple compound droplets on a coplanar EWOD device. The effect of droplet volume on the non-coalescence phenomenon has been studied in two-droplet systems. We have obtained the non-coalescence regime map for different operating parameters of applied voltage and frequency. We have also explored three-droplet systems and obtained a non-coalescence regime. This open-chip coplanar EWOD device configuration can be used to scale up this phenomenon to multiple droplets. © 2022, The Author(s), under exclusive licence to EDP Sciences, Springer-Verlag GmbH Germany, part of Springer Nature.

Item Type:	Journal Article
Publication:	European Physical Journal: Special Topics
Publisher:	Springer Science and Business Media Deutschland GmbH
Additional Information:	The copyright for this article belongs to the Springer Science and Business Media Deutschland GmbH.
Department/Centre:	Division of Interdisciplinary Sciences > Centre for Nano Science and Engineering
Date Deposited:	06 Oct 2022 11:27
Last Modified:	06 Oct 2022 11:27
URI:	https://eprints.iisc.ac.in/id/eprint/77239

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