"portable, 3d-printed Pneumatic Timers for Precise and Flexible Nanoliter Droplet Control Without the Need for Electrical Power"
Year: 2024
Type: conference-paper
Abstract: Affordable 3D printers were used to print modular pneumatic logic gates, which can be operated with a single vacuum input.A droplet generator, where the droplet sizes were controlled using a 12-ring pneumatic delay buffer (inverters) as well as XOR and AND gates to select buffer outputs, created precise millisecond (ms) range pulses to open a microfluidic valve and control droplet size.With the pneumatic delay buffer, the timing of the valve's operation could be delayed in the range of 20 -150 ms with 7 -10 ms precision, allowing control of valves on the droplet generating device to make droplets from 12 -40 nL droplet control and 1 nL precision.This precise, easyto-use system is inexpensive and can be operated without any electrical power.
DOI: 10.70477/kwsd8052
Authors: Joanne Seow, Md Mohibullah, Christopher Easley
Institution: Auburn University
Language: English
Subfield: Biomedical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Funder: National Institutes of Health
Award: G9000218804
OpenAlex ID: W4408818358