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Conference Paper: Electro-coalescence of particle-coated droplets
| Title | Electro-coalescence of particle-coated droplets |
|---|---|
| Authors | |
| Issue Date | 2017 |
| Publisher | American Physical Society (APS). |
| Citation | American Physical Society (APS) March Meeting, New Orleans, LA, 13-17 March 2017 How to Cite? |
| 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.
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). |
| Persistent Identifier | http://hdl.handle.net/10722/253873 |
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | Shum, HC | - |
| dc.date.accessioned | 2018-05-30T08:37:01Z | - |
| dc.date.available | 2018-05-30T08:37:01Z | - |
| dc.date.issued | 2017 | - |
| dc.identifier.citation | American Physical Society (APS) March Meeting, New Orleans, LA, 13-17 March 2017 | - |
| dc.identifier.uri | http://hdl.handle.net/10722/253873 | - |
| dc.description.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. 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). | - |
| dc.language | eng | - |
| dc.publisher | American Physical Society (APS). | - |
| dc.relation.ispartof | American Physical Society (APS) March Meeting | - |
| dc.title | Electro-coalescence of particle-coated droplets | - |
| dc.type | Conference_Paper | - |
| dc.identifier.email | Shum, HC: ashum@hku.hk | - |
| dc.identifier.authority | Shum, HC=rp01439 | - |
| dc.identifier.hkuros | 278697 | - |
| dc.publisher.place | New Orleans, LA | - |