Zobrazeno 1 - 10
of 110
pro vyhledávání: '"Park, Sinwook"'
Microrobots engineered from self-propelling active particles, extend the reach of robotic operations to submillimeter dimensions and are becoming increasingly relevant for various tasks, such as manipulation of micro/nanoscale cargo, particularly tar
Externí odkaz:
http://arxiv.org/abs/2411.07177
Here, we report on a new class active particles capable of dynamically programmable motion powered by electricity. We have implemented physical principles that separate the propulsion and steering mechanisms of active motion using optically activated
Externí odkaz:
http://arxiv.org/abs/2409.15382
Microfluidic channels with embedded ion permselective medium under the application of electric current are commonly used for electrokinetic processes as on-chip ion concentration polarization (ICP) and bioparticle preconcentration to enhance biosensi
Externí odkaz:
http://arxiv.org/abs/2211.11108
Ionic concentration-polarization (CP)-based biomolecule preconcentration is an established method for enhancing the detection sensitivity of target biomolecules. However, the formed preconcentrated biomolecule plug rapidly sweeps over the surface-imm
Externí odkaz:
http://arxiv.org/abs/2008.06739
Autor:
Park, Sinwook, Yossifon, Gilad
Concentration polarization (CP) based biomolecule preconcentration is highly effective in enhancing the detection sensitivity, yet fails to precisely and dynamically control the location of the preconcentrated biomolecule plug to ensure overlap with
Externí odkaz:
http://arxiv.org/abs/1910.05119
Autor:
Park, Sinwook, Yossifon, Gilad
The ability to induce regions of high and low ionic concentration adjacent to a permeselective membrane or nanochannel subject to an externally applied electric field (a phenomenon termed concentration-polarization) has been used for a broad spectrum
Externí odkaz:
http://arxiv.org/abs/1803.03329
Akademický článek
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Publikováno v:
In Journal of Colloid And Interface Science 15 April 2021 588:611-618
Autor:
Park, Sinwook, Yossifon, Gilad
Induced-charge electro-osmosis (ICEO) is shown to control the length scale of the diffusion layer (DL), which in turn, affects the diffusion limited ion transport through the microchannel-Nafion membrane system. The ICEO vortices form at an interdigi
Externí odkaz:
http://arxiv.org/abs/1501.01490
Publikováno v:
Phys. Rev. E (R) 91, 011002 (2015)
To bridge the gap between single/isolated pore systems to multi-pore systems, such as membranes/electrodes, we studied an array of nanochannels with varying interchannel spacing that controlled the degree of channel communication. Instead of treating
Externí odkaz:
http://arxiv.org/abs/1411.0230