Supplementary Videos for "Microdroplets and Modified Surfaces for Improved Sample Preparation in Microfluidics and Mass Spectrometry"

The videos document experimental procedures, droplet confinement behavior, wetting transitions, laser micropatterning processes, and analytical workflows performed on hydrophobic and wettability-patterned substrates.

The dataset supports studies involving open microfluidics, dried matrix spots, droplet manipulation, and ambient mass spectrometry techniques including flowing atmospheric-pressure afterglow mass spectrometry and liquid microjunction-surface sampling probe-mass spectrometry. These materials provide visual documentation of fabrication methods, sample preparation strategies, and microscale fluid behavior relevant to analytical chemistry, surface science, and paper-based microfluidic technologies.