
Proceedings Paper
Flow through oil nanothreadsFormat | Member Price | Non-Member Price |
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Paper Abstract
Emulsion droplets with ultralow interfacial tensions can be pulled apart by a pair of optical traps into daughter droplets
that remain connected by an oil thread of nanoscopic thickness. This thread is stabilized by the bending modulus of the
oil-water interface, which opposes the necking that leads to break up into droplets in the Rayleigh-Plateau instability.
Variation in the pressure exerted on the droplets by the optical traps leads to a flow of liquid between the droplets via the
nanothread. The flow has two components: (i) Poiseuille flow within the thread, and (ii) transport of the entire thread
from one droplet to the other, with interface being created on one droplet and destroyed on the other. For typical
viscosities of the oil and water, the dominant contribution to flow arises from the transport of the whole thread with the
flow internal to the thread making a minor contribution.
Paper Details
Date Published: 25 August 2017
PDF: 5 pages
Proc. SPIE 10347, Optical Trapping and Optical Micromanipulation XIV, 103471V (25 August 2017); doi: 10.1117/12.2276990
Published in SPIE Proceedings Vol. 10347:
Optical Trapping and Optical Micromanipulation XIV
Kishan Dholakia; Gabriel C. Spalding, Editor(s)
PDF: 5 pages
Proc. SPIE 10347, Optical Trapping and Optical Micromanipulation XIV, 103471V (25 August 2017); doi: 10.1117/12.2276990
Show Author Affiliations
Joshua Bull, Durham Univ. (United Kingdom)
Buddhapriya Chakrabarti, Sheffleld Univ. (United Kingdom)
Buddhapriya Chakrabarti, Sheffleld Univ. (United Kingdom)
Published in SPIE Proceedings Vol. 10347:
Optical Trapping and Optical Micromanipulation XIV
Kishan Dholakia; Gabriel C. Spalding, Editor(s)
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