TU Darmstadt / ULB / TUbiblio

Micromixer based on dielectric stack actuators for medical applications

Solano Arana, Susana and Klug, Florian and Mößinger, Holger and Förster-Zügel, Florentine and Schlaak, Helmut F. (2017):
Micromixer based on dielectric stack actuators for medical applications.
In: Proceedings of SPIE, In: Smart Structures / NDE. Electroactive Polymer Actuators and Devices (EAPAD) 2017, Portland, US, 10163, [Conference or Workshop Item]

Abstract

Based on a previously developed microperistaltic pump[1], a micromixer made out of dielectric stack actuators is proposed. The micromixer will be able to mix two fluids at a microscale, pumping both fluids in and out of the device. The device consists of three chambers. In the first and second chamber, fluids A and B are hosted, while in the third chamber, fluids A and B are mixed. The fluid flow regime is laminar. The application of voltage leads to an increase of the size of a gap in the z-axis direction (7.4 times), due to the actuators area expansion. This makes a 40 µm channel open through which the fluid flows. The frequency of the actuation of the different actuators allows an increase of the flow rate. The micromixer can be used for applications such as drug delivery and synthesis of nucleic acids, the proposed device will be made of Polydimethylsiloxane (PDMS) as dielectric and graphite powder as electrode material. PDMS is a biocompatible material, widely used in the prosthesis field. Mixing fluids at a microscale is also in need in the lab-on-a-chip technology for complex chemical reactions.

Item Type: Conference or Workshop Item
Erschienen: 2017
Creators: Solano Arana, Susana and Klug, Florian and Mößinger, Holger and Förster-Zügel, Florentine and Schlaak, Helmut F.
Title: Micromixer based on dielectric stack actuators for medical applications
Language: English
Abstract:

Based on a previously developed microperistaltic pump[1], a micromixer made out of dielectric stack actuators is proposed. The micromixer will be able to mix two fluids at a microscale, pumping both fluids in and out of the device. The device consists of three chambers. In the first and second chamber, fluids A and B are hosted, while in the third chamber, fluids A and B are mixed. The fluid flow regime is laminar. The application of voltage leads to an increase of the size of a gap in the z-axis direction (7.4 times), due to the actuators area expansion. This makes a 40 µm channel open through which the fluid flows. The frequency of the actuation of the different actuators allows an increase of the flow rate. The micromixer can be used for applications such as drug delivery and synthesis of nucleic acids, the proposed device will be made of Polydimethylsiloxane (PDMS) as dielectric and graphite powder as electrode material. PDMS is a biocompatible material, widely used in the prosthesis field. Mixing fluids at a microscale is also in need in the lab-on-a-chip technology for complex chemical reactions.

Title of Book: Proceedings of SPIE
Volume: 10163
Divisions: 18 Department of Electrical Engineering and Information Technology > Institute for Electromechanical Design > Microtechnology and Electromechanical Systems
18 Department of Electrical Engineering and Information Technology > Institute for Electromechanical Design
18 Department of Electrical Engineering and Information Technology
Event Title: Smart Structures / NDE. Electroactive Polymer Actuators and Devices (EAPAD) 2017
Event Location: Portland, US
Date Deposited: 30 Apr 2017 14:00
Export:
Suche nach Titel in: TUfind oder in Google

Optionen (nur für Redakteure)

View Item View Item