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arXiv · 1207.3785

Calculation of Droplet Size and Formation Time in Electrohydrodynamic Based Pulsatile Drug Delivery System

Yi Zheng·Yuan Zhang·Junqiang Hu·Qiao Lin
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Abstract

Electrohydrodynamic (EHD) generation, a commonly used method in BioMEMS, plays a significant role in the pulsed-release drug delivery system for a decade. In this paper, an EHD based drug delivery system is well designed, which can be used to generate a single drug droplet as small as 2.83 nL in 8.5 ms with a total device of 2x2x3 mm^3, and an external supplied voltage of 1500 V. Theoretically, we derive the expressions for the size and the formation time of a droplet generated by EHD method, while taking into account the drug supply rate, properties of liquid, gap between electrodes, nozzle size, and charged droplet neutralization. This work proves a repeatable, stable and controllable droplet generation and delivery system based on EHD method.

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Yi Zheng, Yuan Zhang, Junqiang Hu, Qiao Lin. 2012-07-14. Calculation of Droplet Size and Formation Time in Electrohydrodynamic Based Pulsatile Drug Delivery System. https://arxiv.org/abs/1207.3785

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