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Controlling Octagon-to-Square Wetting Interface Transition of Evaporating Sessile Droplet through Surfactant on Microtextured Surface
Abstract
Producing and maintaining specific liquid patterns during evaporation holds great potential for techniques of printing and coating. Here we report the control over the evolution of surfactant solution droplets on the micropyramid substrates during evaporation. The polygonal droplet shape is achieved during the drying rather than solely at the beginning. As the initial surfactant concentration is 0.04 mM, the droplet maintains its initial octagonal shape throughout the lifetime. Interestingly, the initial octagonal shape transforms into a square during the evaporation as the initial surfactant concentration reaches 0.8 mM. These findings can shed light on wetting pattern control for complex solutions required in various applications- Dataset
- Media
- Biophysics
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- Evolutionary Biology
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- Developmental Biology
- Inorganic Chemistry
- Infectious Diseases
- Plant Biology
- Computational Biology
- Chemical Sciences not elsewhere classified
- Physical Sciences not elsewhere classified
- evaporation
- surfactant concentration
- surfactant solution droplets
- polygonal droplet shape
- Evaporating Sessile Droplet
- pattern
- Controlling Octagon-to-Square Wetting Interface Transition
- mM
- Microtextured Surface Producing