61 citations · 239 across the 27 of their papers we have counts for
28 papers
Dielectrophoretic response and electro-deformation of soft bioparticles interacting with a metallo-dielectric Janus active particle
Donggang Cao, Gilad Yossifon
Active (self-propelling) particles have emerged as innovative microscale tools in the field of single cell analysis with the advantages of being untethered, remotely controlled, hy…
Hybrid Magnetically and Electrically Powered Metallo-Dielectric Janus Microrobots: Enhanced Motion Control and Operation Beyond Planar Limits
Ido Rachbuch, Sinwook Park, Yuval Katz +2
This study introduces the integration of hybrid magnetic and electric actuation mechanisms to achieve advanced motion capabilities for Janus particle (JP) microrobots. We demonstra…
Biohybrid Microrobots Based on Jellyfish Stinging Capsules and Janus Particles for In Vitro Deep-Tissue Drug Penetration
Sinwook Park, Noga Barak, Tamar Lotan +1
Microrobots engineered from self-propelling active particles, extend the reach of robotic operations to submillimeter dimensions and are becoming increasingly relevant for various…
Programmable Motion of Optically Gated Electrically Powered Engineered Microswimmer Robots
Matan Zehavi, Ido Rachbuch, Sinwook Park +3
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 propuls…
The influence of frequency and gravity on the orientation of active metallo-dielecric Janus particles translating under a uniform applied alternating-current electric field
Alicia Boymelgreen, Golak Kunti, Pablo Garcia Sanchez +1
Theoretical and numerical models of active Janus particles commonly assume that the metallo-dielectric interface is parallel to the driving applied electric field. However, our exp…
Optoelectronic Trajectory Reconfiguration and Directed Self-Assembly of Self-Propelling Electrically-Powered Active Particles
Sankha Shuvra Das, Gilad Yossifon
Self-propelling active particles are an exciting and interdisciplinary emerging area of research with projected biomedical and environmental applications. Due to their autonomous m…
A Magnetically and Electrically Powered Hybrid Micromotor in Conductive Solutions: Synergistic Propulsion Effects and Label-Free Cargo Transport and Sensing
Yue Wu, Sivan Yakov, Afu Fu +1
Electrically powered micro- and nanomotors are promising tools for in-vitro single-cell analysis. In particular, single cells can be trapped, transported and electroporated by a Ja…
Electro-Orientation and Electro-Rotation of Metallodielectric Janus Particles
Daniel Sofer, Gilad Yossifon, Touvia Miloh
The electro-rotation (EROT) and electro-orientation (EOR) behavior of metallodielectric (MD) spherical Janus particles (JP) are studied analytically and verified experimentally. Th…
Designing with Iontronic Logic Gates -- From a Single Polyelectrolyte Diode to Small Scale Integration
Barak Sabbagh, Noa Edri Fraiman, Alex Fish +1
This article presents the implementation of on-chip iontronic circuits via small-scale integration of multiple ionic logic gates made of bi-polar polyelectrolyte diodes. These ioni…
Microvalve-Based Tunability of Electrically Driven Ion Transport Through a Microfluidic System with Ion-Exchange Membrane
Barak Sabbagh, Sinwook Park, Gilad Yossifon
Microfluidic channels with embedded ion permselective medium under the application of electric current are commonly used for electrokinetic processes as on-chip ion concentration p…
Optically Modulated Propulsion of Electric Field Powered Photoconducting Janus Particles
Matan Zehavi, Daniel Sofer, Touvia Miloh +2
Herein we demonstrate the ability to optically tune the mobility of electrically powered Janus particles (JP) that are half coated with various Zinc Oxide (ZnO) semiconducting laye…
Periodic Concentration-Polarization-Based Formation of a Biomolecule Preconcentrate for Enhanced Biosensing
Sinwook Park, Keren Buhnik-Rosenblau, Ramadan Abu-Rjal +2
Ionic concentration-polarization (CP)-based biomolecule preconcentration is an established method for enhancing the detection sensitivity of target biomolecules. However, the forme…
Dielectrophoretic Equilibrium of Complex Particles
Tom Elkeles, Pablo Garcia-Sanchez, Wu Yue +2
In contrast to the commonly used spherical Janus particles, here we used engineered Janus particles that are fabricated using photolithography technique for precise control over th…
Active Particles as Mobile Microelectrodes for Selective Bacteria Electroporation and Transport
Yue Wu, Afu Fu, Gilad Yossifon
Self-propelling micromotors are emerging as a promising microscale and nanoscale tool for single-cell analysis. We have recently shown that the field gradients necessary to manipul…
Analysis of Cargo Loading Modes and Capacity of an Electrically-Powered Active Carrier
Xiaoye Huo, Yue Wu, Alicia Boymelgreen +1
The use of active colloids for cargo transport offers unique potential for applications ranging from targeted drug delivery to lab-on-a-chip systems. Previously, Janus particles (J…
Electrothermal active control of preconcentrated biomolecule plugs
Sinwook Park, Gilad Yossifon
Concentration polarization (CP) based biomolecule preconcentration is highly effective in enhancing the detection sensitivity, yet fails to precisely and dynamically control the lo…
A Tunable Electrorheological Fluid Microfluidic Rectifier: Irreversibility of Viscous Flow due to Spatial Asymmetry Induced Memory Effects
X. Huo, G. Yossifon
Due to the reversibility of viscous flow it is not expected to obtain a fluidic rectifier simply from geometrical asymmetry without any moving mechanical parts. Here, we found a co…
Active control of ion transport within a nanofluidic system
Sinwook Park, Gilad Yossifon
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…
Mobile Microelectrodes: Towards active spatio-temporal control of the electric field and selective cargo assembly
Alicia M Boymelgreen, Tov Balli, Touvia Miloh +1
With an eye towards next-generation, smart, micro/nanofluidic devices, capable of responding to external stimuli or changes in environment, we demonstrate a means to achieve dynami…
Time-dependent ion transport in heterogeneous permselective systems
Yoav Green, Gilad Yossifon
The current study extends previous analytical and numerical solutions of chronopotentiometric response of one-dimensional systems consisting of three layers to the more realistic t…
Extended space charge near non-ideally selective membranes and nanochannels
Jarrod Schiffbauer, Neta Leibowitz, Gilad Yossifon
We demonstrate the role of selectivity variation in the structure of the non-equilibrium extended space-charge using 1D analytic and 2D numerical Poisson-Nernst-Planck models for t…
Effect of Induced-Charge Electro-Kinetics on Concentration-Polarization in a Microchannel-Nafion System
Sinwook Park, Gilad Yossifon
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 micro…
Competition between Induced-Charge Electro-Osmosis and Electro-Thermal Effects around a Weakly-Polarizable Microchannel Corner
Matan Zehavi, Alicia Boymelgreen, Gilad Yossifon
The microchannel corner is a common inherent component of most planar microfluidic systems and thus its influence on the channel flow is of significant interest. Application of an…
Bridging the Gap between an Isolated Nanochannel/pore System and Communicating Multipore Heterogeneous Membrane System
Yoav Green, Sinwook Park, Gilad Yossifon
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 th…