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Molarity Effect on Contact Angle Change Contact Angle Change ( ) Contact Angle Change vs. Voltage f=300 Hz 60.0 50.0 40.0 0.1 M 30.0 0.5 M 20.0 1.0 M 10.0 2.0 M 0.0 0.0 2.0 4.0 6.0 8.0 10.0 12.0 Voltage (V) Contact Angle Change ( ) 60.0 50.0 40.0 30.0 20.0 10.0 Contact Angle Change vs. Voltage f=1000 Hz 0.1 M 0.5 M 1.0 M 2.0 M 0.0 0.0 2.0 4.0 6.0 8.0 10.0 12.0 Voltage (V) • Actuation voltage is same for all cases. • Saturation is reached sooner by the higher molarity solutions. 12
Evaporation Once the droplets are mixed, the solvent needs to be evaporated. 13
Page 1 and 2: Juan David Gutierrez-Franco Mechani
Page 3 and 4: The Big Picture • Mixing chemical
Page 5 and 6: Lab-on-a-Chip mixing chemicals 2.5
Page 7 and 8: Research Method: Electrowetting •
Page 9 and 10: Research Method: Electrowetting 65.
Page 11: Effect of Molarity on Electrowettin
Page 15 and 16: Calibration of RTD • Fabrication
Page 17 and 18: Summary • 17
Page 19 and 20: Acknowledgments • INSET Program o
Page 22 and 23: Definitions • Electrowetting: mod
Page 24 and 25: Electrolysis • KCl is present in
Page 26 and 27: Residue seen on chips Desired resid
Page 28 and 29: Before After 28
Page 30 and 31: RTD Cross-Section • Two layers
Page 32: Evaporation Rate Curve • 32

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