Abstract

Exploring the Potential of Microfluidics for Lab Automation

Burcu Gumuscu, Assistant Professor Biosensors and Devices Lab, Eindhoven University of Technology

Digital microfluidics (DMF) chips have garnered increasing attention over the past decade thanks to their ability to address individual droplets. These chips consist of an array of mm-sized electrodes to manipulate liquid-based, individually addressable droplets through applied voltages. Programmed sub-microliter scale droplets performing basic pipetting operations paved the way for the automation of laborious assays. Automated biological assays are an exciting application of DMF, including DNA-based analysis, electroanalysis, and short-term cell culture experiments. However, there are still limitations to be overcome. DMF chips are not yet able to excel in (1) multiplexed operations due to the 2D planar fabrication of operational units, limiting the number of operation units per chip, (2) long-term cell studies due to the typical mismatch of electronics devices and high humidity conditions in typical cell-culture incubators. In this talk, I will discuss these challenges and propose potential solutions to enhance the capabilities of DMF chips for automated biological assays.