Insights into Transient Dynamics of Bacteria Laden Liquid Bridges

Understand

We study evaporation and precipitate formation mechanics of bacteria-laden liquid bridge using experimental and theoretical analysis.

• Aqueous suspension of motile and non-motile Salmonella Typhimurium and Pseudomonas aeruginosa typically found in contaminated food and water were used in liquid bridge configuration between hydrophilic substrates.
• Using inverse logarithmic evaporation flux model, we study volume regression for cylindrical/catenoid volume models with confinement distance as a parameter.
• For all confinement distances, the regression is linear on normalizing both volume and time as in the case of pure sessile drop.