Abstract
Droplets in air or in an immiscible liquid phase are used widely in applications ranging from personal hygiene products to drug delivery. The stability of the droplets are highly linked to their utility, and thus have been systematically studied. To enhance the stability of the droplets, particles are often added to the droplets. In this talk, I will discuss how the particle layer at droplet interfaces responds to electrical charging of the droplets. The electrical forces can distort the droplet shape, which is opposed by the layer of particles adsorbed. A balance of the electrical and interfacial effects provides a quantitative indicator of the droplet instability. The coalescence of droplets in both air and liquid induced by electrically charging, which we call ``electro-coalescence'', will be introduced, with its potential application in devising a digital millifluidic platform._x000D_
We thank the Research Grants Council of Hong Kong (No. HKU 719813E, 17304514 and 17306315 and C6004-14G) from the and National Natural Science Foundation of China (No. 21476189/B060201 and 91434202).
| Original language | English |
|---|---|
| Publication status | Published - 13 Mar 2017 |
| Externally published | Yes |
| Event | American Physical Society (APS) March Meeting - New Orleans, United States Duration: 13 Mar 2017 → 17 Mar 2017 |
Conference
| Conference | American Physical Society (APS) March Meeting |
|---|---|
| Place | United States |
| City | New Orleans |
| Period | 13/03/17 → 17/03/17 |
Bibliographical note
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