NDLI: Effect of parameters on redistribution and removal of particles from drop surfaces

Please wait, while we are loading the content...

Controllable self-assemblies of micro/nano-tubes and vesicles from arylamides and their applications as templates to fabricate Pt micro/nano-tubes and hollow Pt nanospheres

Static and dynamic control of phase separation structures in nanoparticles of polymer blends

Plateau-Rayleigh instability in a torus: formation and breakup of a polymer ring

In-plane homogeneity and lipid dynamics in tethered bilayer lipid membranes (tBLMs)

Fluctuations and elastic properties of lipid membranes in the gel L_β′ state: a coarse-grained Monte Carlo study

Phase behavior of polyisoprene-poly(butylene oxide) and poly(ethylene-alt-propylene)-poly(butylene oxide) block copolymers

Microemulsion-based organogels containing inorganic nanoparticles

Atomistic simulations of the wetting behavior of nanodroplets of water on homogeneous and phase separated self-assembled monolayers

Effects of valences of salt ions at various concentrations on charged dendrimers

Formation of square lamellae by self-assembly of long-chain bolaphospholipids in water

Self-assembly of Nafion®/poly(vinyl alcohol) at pH = 1.2 and Nafion®/poly(allyl amine) at pH = 11

Influence of polymer network-metal ion complexation on the swelling behaviour of new gels with incorporated α-amino acid groups

Adhesion of yield stress fluids

Effects of temperature, acyl chain length, and flow-rate ratio on liposome formation and size in a microfluidic hydrodynamic focusing device

Back cover

Soft Matter Vol - 6 Issue - 5

Soft Matter Vol - 6 Issue - 4

Soft Matter Vol - 6 Issue - 3

Effect of parameters on redistribution and removal of particles from drop surfaces

Content Provider	Royal Society of Chemistry (RSC)
Author	Janjua, Muhammad Aubry, Nadine Nudurupati, Sai Singh, Pushpendra
Copyright Year	2010
Abstract	It was recently shown by us that particles distributed on the surface of a drop can be concentrated at the poles or the equator of the drop by subjecting the latter to a uniform electric field and that such concentrated particles can then be removed from the drop by increasing the electric field intensity. In this paper, we present experimental results for the dependence of the dielectrophoretic force on the parameters of the system such as the particles' and drop's radii and the dielectric properties of the fluids and particles, and define a dimensionless parameter regime for which the technique can work. Specifically, we show that if the drop radius is larger than a critical value, that depends on the physical properties of the drop and ambient fluids and those of the particles, it is not possible to concentrate particles and thus clean the drop of the particles it carries at its surface because the drop breaks or tip-streams at an electric field intensity smaller than that needed for concentrating particles. However, since the dielectrophoretic force varies inversely with the drop radius, the effectiveness of the concentration mechanism increases with decreasing drop size, and therefore the technique (particles concentration followed by drop clean-up or delivery) is guaranteed to work provided the drop radius is sufficiently small. We also show that this concentration method can be used to separate particles experiencing positive dielectrophoresis on the surface of a drop from those experiencing negative dielectrophoresis, and form a composite (Janus) drop by aggregating particles of one type near the poles and of another near the equator. Furthermore, after the two types of particles are separated on the surface of the drop, it is possible to remove the particles concentrated near the poles from the drop by increasing the electric field intensity so that the drop tip-streams, thus leaving only one type of particles at the surface of the drop. This could be useful for having drops selectively deliver, or get rid of, some particles while keeping others.
Starting Page	1157
Ending Page	1169
Page Count	13
File Format	HTM / HTML PDF
ISSN	1744683X
Volume Number	6
Issue Number	6
Journal	Soft Matter
DOI	10.1039/b912723b
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Electric field Janus Correlation and dependence Dielectric
Content Type	Text
Resource Type	Article
Subject	Chemistry Condensed Matter Physics

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Redistribution and Removal of Particles From Drop Surfaces

Electric field driven controllable motility of metal-dielectric Janus particles with boojum defects in a nematic liquid crystal

A novel method for measuring electric field induced dipole moments of metal-dielectric Janus particles in nematic liquid crystals

Optically Modulated Propulsion of Electric Field Powered Photoconducting Janus Particles

Ratchet-driven fluid transport in bounded two-layer films of immiscible liquids

Reconfigurable responsive structures assembled from magnetic Janus particles

Field and temperature dependence of dielectric properties in -based piezoceramics

Flagellar Dynamics of Chains of Active Janus Particles Fueled by an AC electric field

The influence of frequency and gravity on the orientation of active metallo-dielecric Janus particles translating under a uniform applied alternating-current electric field

Effect of parameters on redistribution and removal of particles from drop surfaces

Similar Documents

Redistribution and Removal of Particles From Drop Surfaces

Electric field driven controllable motility of metal-dielectric Janus particles with boojum defects in a nematic liquid crystal

A novel method for measuring electric field induced dipole moments of metal-dielectric Janus particles in nematic liquid crystals

Optically Modulated Propulsion of Electric Field Powered Photoconducting Janus Particles

Ratchet-driven fluid transport in bounded two-layer films of immiscible liquids

Reconfigurable responsive structures assembled from magnetic Janus particles

Field and temperature dependence of dielectric properties in -based piezoceramics

Flagellar Dynamics of Chains of Active Janus Particles Fueled by an AC electric field

The influence of frequency and gravity on the orientation of active metallo-dielecric Janus particles translating under a uniform applied alternating-current electric field

Effect of parameters on redistribution and removal of particles from drop surfaces