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Mesoscopic simulations of polyelectrolyte electrophoresis in nanochannels [article]

Jens Smiatek, Friederike Schmid
2010 arXiv   pre-print
The effects of electroosmotic flow and slippage combined with polyelectrolyte electrophoresis are investigated in detail, taking full account of hydrodynamic and electrostatic interactions.  ...  We present the results of mesoscopic dissipative particle dynamics (DPD) simulations of coupled electrohydrodynamic phenomena on the micro- and nanoscale.  ...  Allen and Kai Grass for nice and fruitful discussions. Furthermore we thank the HLRS in Stuttgart for computing time and the Volkswagen Stiftung for funding.  ... 
arXiv:1007.3585v1 fatcat:bnq72tykr5asvopzz4yiy4xsgm

Mesoscopic Simulations of Polyelectrolyte Electrophoresis in Nanochannels [chapter]

Jens Smiatek, Friederike Schmid
2011 High Performance Computing in Science and Engineering '10  
The effects of electroosmotic flow and slippage combined with polyelectrolyte electrophoresis are investigated in detail, taking full account of hydrodynamic and electrostatic interactions.  ...  We present the results of mesoscopic dissipative particle dynamics (DPD) simulations of coupled electrohydrodynamic phenomena on the micro-and nanoscale.  ...  Allen and Kai Grass for nice and fruitful discussions. Furthermore we thank the HLRS in Stuttgart for computing time and the Volkswagen Stiftung for funding.  ... 
doi:10.1007/978-3-642-15748-6_5 fatcat:pxok62ixqbgpxbkwqj26hhfthi

Mesoscopic Simulation Methods for Studying Flow and Transport in Electric Fields in Micro- and Nanochannels [chapter]

Jens Smiatek, Friederike Schmi
2012 Advances in Microfluidics  
Flows in micro-and nanochannels are characterized by low Reynolds numbers.  ...  Physics of flow in micro-and nanochannels: A brief introduction In the following, we will give a brief overview over important factors that govern flow and transport phenomena on the nanoscale.  ...  Then we will present a selection of simulation methods for studying electrokinetic phenomena. 107 Mesoscopic Simulation Methods for Studying Flow and Transport in Electric Fields in Micro-and Nanochannels  ... 
doi:10.5772/35773 fatcat:xrddrb5k6zbnfblo4w3jaf3y6e

Electrokinetic droplet transport from electroosmosis to electrophoresis

Andrei Bazarenko, Marcello Sega
2018 Soft Matter  
Droplet transport in microfluidic channels by electrically induced flows often entails the simultaneous presence of electroosmosis and electrophoresis.  ...  In summary, we have applied a mesoscopic simulation technique to the study of droplet transport in microfluidic channels.  ...  superposition of the electroosmotic flow contribution and the electrophoretic mobility.  ... 
doi:10.1039/c8sm01788c fatcat:zuaurzvpg5gndd27fpbifuuyiy

Modelling of electrokinetically driven mixing flow in microchannels with patterned blocks

Dinan Wang, Jonathan L. Summers, Philip H. Gaskell
2008 Computers and Mathematics with Applications  
This paper investigates the mixing in microchannels via the simulation of two-dimensional electrokinetically driven flow where the microchannel is populated with patterned blocks.  ...  The effects of the number, the size and the displacement of blocks are analysed to determine the efficiency of the mixing.  ...  The modelling of such small-scale and low Reynolds number fluid flow requires a "mesoscopic" approach.  ... 
doi:10.1016/j.camwa.2007.08.021 fatcat:ucggzzwqknbqpgknmo5i7tsn4e

DPD Simulation of Electroosmotic Flow in Nanochannels and the Evaluation of Effective Parameters

Masoud Darbandi, Ramin Zakeri, Gerry Schneider
2010 10th AIAA/ASME Joint Thermophysics and Heat Transfer Conference   unpublished
In this paper, we simulate the electroosmotic flow in nanochannel considering no limit if it is neither continuum nor non-nonewtonian.  ...  We provide the simulation of electroosmotic phenomenon in nanochannels using the Dissipative Particle Dynamics (DPD) method.  ...  The new mesoscopic approach helped to achieve reliable solutions for the electroosmotic phenomenon in nanochannels for newtonian and non-newtonian fluids in various flow and nanochannel condition.  ... 
doi:10.2514/6.2010-5058 fatcat:en7e26mypbgdrbckcp7twq4lfi

Regularization of the slip length divergence in water nanoflows by inhomogeneities at the Angstrom scale

Marcello Sega, Mauro Sbragaglia, Luca Biferale, Sauro Succi
2013 Soft Matter  
We performed non-equilibrium Molecular Dynamics simulations of water flow in nano-channels with the aim of discriminating static from dynamic contributions of the solid surface to the slip length of the  ...  molecular flow.  ...  For example, in a work that introduces the tunable slip length in DPD simulations, 49 and that has been successfully applied in the simulation of, e.g., nanoconned electrophoresis 50 and electroosmotic  ... 
doi:10.1039/c3sm51508g fatcat:bvdn2vnvvffvhbliet6v7gszcm

Chemical Vapor Deposition (CVD) [chapter]

Yoke Khin Yap, Dongyan Zhang
2016 Encyclopedia of Nanotechnology  
control radio frequency (RF) signal paths in microwave and millimeter-wave circuits through mechanical motion and contact.  ...  While micromachined beams or plates are also utilized in capacitive switches, these switches rely on metal-to-dielectric contacts to implement their on and off states.  ...  This represents that in the case of electroosmotic flow with À Eo number, the capillary flow is assisted by electroosmotism.  ... 
doi:10.1007/978-94-017-9780-1_345 fatcat:hqqkocm2sne5jp32r7akdjceyi

Cell Micro-patterning [chapter]

2016 Encyclopedia of Nanotechnology  
control radio frequency (RF) signal paths in microwave and millimeter-wave circuits through mechanical motion and contact.  ...  While micromachined beams or plates are also utilized in capacitive switches, these switches rely on metal-to-dielectric contacts to implement their on and off states.  ...  This represents that in the case of electroosmotic flow with À Eo number, the capillary flow is assisted by electroosmotism.  ... 
doi:10.1007/978-94-017-9780-1_100152 fatcat:msyahfwivvcxhol3nltwdi546e

Mesoscopic simulations at the physics-chemistry-biology interface [article]

Massimo Bernaschi, Simone Melchionna, Sauro Succi
2019 arXiv   pre-print
We discuss the Lattice Boltzmann-Particle Dynamics (LBPD) multiscale paradigm for the simulation of complex states of flowing matter at the interface between Physics, Chemistry and Biology.  ...  In particular, we describe current large-scale LBPD simulations of biopolymer translocation across cellular membranes, molecular transport in ion channels and amyloid aggregation in cells.  ...  The associated biological flows are driven by electro-osmosis and electrophoresis.  ... 
arXiv:1905.02261v1 fatcat:k4zbtaqgmnfkvn2ioxnybg26ba

Electric Double Layer Capacitor [chapter]

2016 Encyclopedia of Nanotechnology  
IC 25 estimates of the concentration causing 25 % reduction in growth or reproduction of test organisms.  ...  Synonyms Environmental toxicology; Nano-ecotoxicology; Toxicity of metal and metal oxide nanoparticles on Prokaryotes (bacteria), unicellular and invertebrate Eukaryotes Glossary EC 50 The half maximal  ...  Acknowledgments Work described in this entry that was carried out in the authors' laboratories was supported by the National Science Foundation, the Department of Energy and the Army Corps of Engineers  ... 
doi:10.1007/978-94-017-9780-1_100279 fatcat:bwewyikjfjckhfucz5ta2fhg7a

Electronic Properties [chapter]

2016 Encyclopedia of Nanotechnology  
IC 25 estimates of the concentration causing 25 % reduction in growth or reproduction of test organisms.  ...  Synonyms Environmental toxicology; Nano-ecotoxicology; Toxicity of metal and metal oxide nanoparticles on Prokaryotes (bacteria), unicellular and invertebrate Eukaryotes Glossary EC 50 The half maximal  ...  Acknowledgments Work described in this entry that was carried out in the authors' laboratories was supported by the National Science Foundation, the Department of Energy and the Army Corps of Engineers  ... 
doi:10.1007/978-94-017-9780-1_100299 fatcat:uafi4jywlrhfxdtcrlnvzgboti

Modulating Electro-osmotic Flow with Polymer Coatings

Owen Hickey, Université D'Ottawa / University Of Ottawa, Université D'Ottawa / University Of Ottawa
2012
Upon the application of an electric field parallel to the wall, a flow is produced by the charged walls called the electro-osmotic flow (EOF).  ...  The last section presents results which show how hydrodynamic interactions in charged polymer systems can be modeled mesoscopically without the use of explicit charges by forcing a slip between monomers  ...  The findings, opinions, and recommendations expressed in this Letter are those of the authors and not necessarily those of Northwestern University or the NIH. O. A.  ... 
doi:10.20381/ruor-5166 fatcat:qgcn7orqsvfkpfmdsby33lzhq4

Theoretical Study of Voltage-driven Capture and Translocation Through a Nanopore : From Particles to Long Flexible Polymers

Le Qiao, University, My
2021
However, the theories of analyte capture are still not complete due to the complex dynamics resulting from the coupling of multiple physical processes such as di usion, electrophoresis, and electroosmotic  ...  flow.  ...  The counterions move in the direction of the field, which transfers net momentum to the fluid and thus introduces a flow in the direction of the field, this is the so-called Electroosmotic flow (EOF).  ... 
doi:10.20381/ruor-26472 fatcat:llb4lqpzh5bjhleysxdeyc7uby

Nanofluidic Devices for Rapid Analysis of DNA and Proteins

Jianping Fu
2010 ASME 2010 First Global Congress on NanoEngineering for Medicine and Biology   unpublished
Continuous-flow separation of dsDNA and proteins covering broad biological size scales were achieved within a few minutes, thus demonstrating the potential of the ANA as a generic molecular sieving structure  ...  Direct analysis of biologically-relevant entities such as nucleic acids and proteins offers the potential to outperform conventional analysis techniques and diagnostic methods through enhancements in speed  ...  Electrophoresis 25, 3128─3131 (2004). 9. Liu, L., Li, P. & Asher, S. A. Entropic trapping of macromolecules by mesoscopic periodic voids in a polymer hydrogel. Nature 397, 141─144 (1999). 10.  ... 
doi:10.1115/nemb2010-13196 fatcat:iwssazjcczh6vgxxb5lubs5x7a
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