The Expansion of Digital Microfluidic Systems

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The Expansion of Digital Microfluidic Systems

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Anderson, Chase

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2021

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Presentation

Abstract

Digital microfluidics (DMF) is a technology that allows for movement and manipulation of liquid using electricity. By charging and discharging conductive pads upon a grid, one is able translate, split, and mix droplets to perform conventional wet lab operations. By minimizing handling time, chemical dangers, and laboratory wastes (e.g. pipette tips); DMF stands at the forefront of modern bio-chemical implementations. Most DMF prototypes/platforms utilize a single grid space, and this should change. In hopes to connect 4 ,16 , 64, or n-many grids for that matter; current DMF designs do not have required infrastructure. Each pad must be charged to upwards of 300 volts, so hardware, separate from the brains of the system, is required to facilitate normal operation. Like the heart, DMF platforms operate on beats and must be synchronous. Often, a microcontroller (Arduino, PIC, STM32) is used; however, microcontrollers operate sequentially, meaning each instruction given to the machine must execute one after the other. If one wished to parallelize the process of DMF, a separate computing paradigm must be used. Enter the FPGA (Field Programmable Gate Array). Being able to process multiple lightweight channels of data at a time, the FPGA enables the end user to have thousands if not millions of droplets moving synchronously across hundreds of grid systems. The research task was to find an elegant solution to the problem of parallelizing DMF systems using FPGAs.

Keywords

FPGA

DMF

Python

C

Digital Microfluidics

TCP/IP

Ethernet

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UMTC Undergraduate Research Presentations and Papers (UROP)

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This research was supported by the Undergraduate Research Opportunities Program (UROP).

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Anderson, Chase. (2021). The Expansion of Digital Microfluidic Systems. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/223065.

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