+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Numerical study on dielectrophoretic chaining of two ellipsoidal particles

, : Numerical study on dielectrophoretic chaining of two ellipsoidal particles. Journal of Colloid and Interface Science 374(1): 141-149

Electric field-induced assembly of biological and synthetic particles has proven useful in two- and three-dimensional fabrication of composite materials, microwires, photonic crystals, artificial tissues, and more. Biological particles are typically irregularly shaped, and using non-spherical synthetic particles has the ability to expand current applications. However, there is much to be understood about the dielectrophoretic (DEP) interaction that takes place between particles of general shape. In this work, we numerically study the DEP interaction between two prolate spheroid particles suspended in an unbounded fluid. The boundary-element method (BEM) is applied to solve the coupled electric field, Stokes flow, and particle motion, and the DEP forces are obtained by integrating the Maxwell stress tensor over the particle surfaces. Effects of the initial configuration and aspect ratio are investigated. Results show that the particles go through a self-rotation process, that is, electro-orientation, while translating slowly to form a chain pair. The final formation resembles the chaining pattern observed previously in experiments using densely distributed ellipsoidal particles. Thus, the transient behavior and particle-particle interaction exhibited in the current study could be used as the fundamental mechanism to explain the phenomenon in the experiment.


PMID: 22340950

DOI: 10.1016/j.jcis.2012.01.039

Other references

Bloomfield, C., 1956: The solution-reduction of ferric oxide by aqueous leaf extracts. The role of certain constituents of the extracts. cf. F.A. 17 No. 3583.] Experiments with leaf extracts of Rimu and Kauri showed that the constituents of larger molecular weight inhibit the activity of those of smaller molecular weight in dissolving Fe oxide. The addition of the bark extract of R...

Cauderon, Y.; Tempe, J.; Gay, G., 1978: Breeding and cytogenetical analysis of a new hybrid: Hordeum vulgare, ssp. distichon X Triticum timopheevi. An F1 hybrid of the barley variety Ketch X T. timopheevii was obtained by embryo culture. The chromosome number in root meristems was 21. The hybrid generally resembled the male parent and presented no obvious morphological characteristics of barl...

Tomaszewski, M.; Charchar, F.J.; Przybycin, M.; Crawford, L.; Wallace, A.Michael.; Gosek, K.; Lowe, G.D.; Zukowska-Szczechowska, E.; Grzeszczak, W.; Sattar, N.; Dominiczak, A.F., 2003: Strikingly low circulating CRP concentrations in ultramarathon runners independent of markers of adiposity: how low can you go?. Objective-This study was undertaken to evaluate to what extent C-reactive protein (CRP) can be reduced by exercise by examining its circulating concentrations in male ultramarathon runners and to determine if low leptin as a robust circulating mar...

Karasawa, H.; Kato, H., 2007: New prosopid crabs (Crustacea, Decapoda, Brachyura) from the Upper Jurassic Torinosu Group, Shikoku, Japan. The extinct podotreme family Prosopidae v. Meyer, 1860, is well known from the Jurassic and Cretaceous deposits of the Tethys realm (Muller et al., 2000). Previously known prosopids from the north Pacific have been Pithonoton inflation Collins & K...

Fletcher; Verma, 1987: Transport properties of Rb in high magnetic fields. Physical Review. B, Condensed Matter 36(18): 9482-9487

Garcia, S.; Schuh, M.; Cheema, A.; Atwal, H.; Atwal, P.S., 2017: Palpitations and Asthenia Associated with Venlafaxine in a CYP2D6 Poor Metabolizer and CYP2C19 Intermediate Metabolizer. Cardiotoxicity has been extensively reported in venlafaxine (VEN) overdoses. Asthenia is also among the common side effects described for this antidepressant. VEN is metabolized mainly by CYP2D6 and to a minor extent by CYP2C19 to the major active...

Schwartz, M., 1993: Cystic fibrosis. From clinical diagnosis to a mutation specific test. By use of classical linkage analysis and modern DNA technology the gene for cystic fibrosis (CF) was mapped to the long arm of chromosome 7 in 1985. Cloning of the entire gene (CFTR = Cystic Fibrosis Transmembrane Conductance Regulator) was publis...

Edmunson, J.E.; Betts, W.; Rickman, D.; McLemore, C.; Fikes, J.; Stoeser, D.; Wilson, S.; Schrader, C., 2010: NASA lunar regolith simulant program. Abstracts of Papers Submitted to the Lunar and Planetary Science Conference 41

Nazarov, S.B.; Kozinets, G.I., 1992: Hemoglobin content changes in white rat RBCs in ontogenesis. The investigation of hemoglobin concentration (HC) in erythrocytes of rats in prenatal and early postnatal period reported HC reduction in the process of animal development, especially marked during the first 5 days of postnatal life. The change i...

Crnkovic B.; Babic V.; Tomasic I., 1974: The gabbro of Hruskovec near Ljubescica on Mount Kalnik (northern Croatia). Geoloski Vjesnik: ages 153-171. 1974.