scholarly journals Automatic cell fusion via optically-induced dielectrophoresis and optically-induced locally-enhanced electric field on a microfluidic chip

2018 ◽  
Vol 12 (3) ◽  
pp. 034108 ◽  
Author(s):  
Yu-Chun Hsiao ◽  
Chih-Hung Wang ◽  
Wen-Bin Lee ◽  
Gwo-Bin Lee
Keyword(s):  
Electric Field ◽  
Cell Fusion ◽  
Microfluidic Chip ◽  
Optically Induced

Rapid determination of cell mass and density using digitally controlled electric field in a microfluidic chip

Lab on a Chip ◽  
2014 ◽  
Vol 14 (22) ◽  
pp. 4426-4434 ◽  
Author(s):  
Yuliang Zhao ◽  
Hok Sum Sam Lai ◽  
Guanglie Zhang ◽  
Gwo-Bin Lee ◽  
Wen Jung Li
Keyword(s):  
Computer Vision ◽  
Electric Field ◽  
Single Cell ◽  
Cell Density ◽  
Microfluidic Chip ◽  
Rapid Determination ◽  
Cell Mass ◽  
Digitally Controlled ◽  
Optically Induced

Single-cell density and mass were measured rapidly using a combination of optically induced electrokinetics, microfluidics, computer vision, and classical sedimentation theory.

scholarly journals Optically Induced Field-Emission Source Based on Aligned Vertical Carbon Nanotube Arrays

Nanomaterials ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1810
Author(s):  
Mengjie Li ◽  
Qilong Wang ◽  
Ji Xu ◽  
Jian Zhang ◽  
Zhiyang Qi ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Electric Field ◽  
Field Emission ◽  
Field Enhancement ◽  
Absorption Efficiency ◽  
Photon Absorption ◽  
Nanotube Arrays ◽  
Carbon Nanotube Arrays ◽  
Induced Field ◽  
Optically Induced

Due to the high field enhancement factor and photon-absorption efficiency, carbon nanotubes (CNTs) have been widely used in optically induced field-emission as a cathode. Here, we report vertical carbon nanotube arrays (VCNTAs) that performed as high-density electron sources. A combination of high applied electric field and laser illumination made it possible to modulate the emission with laser pulses. When the bias electric field and laser power density increased, the emission process is sensitive to a power law of the laser intensity, which supports the emission mechanism of optically induced field emission followed by over-the-barrier emission. Furthermore, we determine a polarization dependence that exhibits a cosine behavior, which verifies the high possibility of optically induced field emission.

Synergistic use of electroosmotic flow and magnetic forces for nucleic acid extraction

The Analyst ◽  
2020 ◽  
Vol 145 (6) ◽  
pp. 2412-2419 ◽  
Author(s):  
Rachel N. Deraney ◽  
Lindsay Schneider ◽  
Anubhav Tripathi
Keyword(s):  
Nucleic Acid ◽  
Electric Field ◽  
Microfluidic Chip ◽  
Applied Electric Field ◽  
Electroosmotic Flow ◽  
Acid Extraction ◽  
Nucleic Acid Extraction ◽  
Magnetic Forces ◽  
Extraction And Purification

NA extraction and purification utilitzing a microfluidic chip with applied electric field to induce electroosmotic flow opposite the magnetic NA-bound bead mix.

scholarly journals Optically induced excitonic distribution in GaInAs-AlGaInAs semiconductor superlattices under an electric field

1993 ◽  
Vol 03 (C5) ◽  
pp. C5-273-C5-276
Author(s):  
G. WANG ◽  
P. TRONC ◽  
J. DEPEYROT ◽  
J. C. HARMAND ◽  
J. F. PALMIER
Keyword(s):  
Electric Field ◽  
Semiconductor Superlattices ◽  
Optically Induced

Usefulness of ficoll in electric field-mediated cell fusion

Life Sciences ◽  
1986 ◽  
Vol 39 (24) ◽  
pp. 2279-2288 ◽  
Author(s):  
Richard Herzog ◽  
Andreas Müller-Wellensiek ◽  
Wolfgang Voelter
Keyword(s):  
Electric Field ◽  
Cell Fusion

Continuous Dielectrophoretic Separation of Multiple Particles in a Microfluidic Chip

2008 ◽  
Author(s):  
Christian Davidson ◽  
Junjie Zhu ◽  
Xiangchun Xuan
Keyword(s):  
Particle Size ◽  
Electric Field ◽  
Flow Separation ◽  
Microfluidic Chip ◽  
Continuous Flow ◽  
Uniform Electric Field ◽  
Dielectrophoretic Force ◽  
Size Dependent ◽  
Multiple Particles ◽  
Dc Dielectrophoresis

We successfully demonstrate that DC dielectrophoresis can be utilized to separate particles of three dissimilar sizes simultaneously in a microfluidic chip. This continuous-flow separation is attributed to the particle size dependent dielectrophoretic force that is generated by the non-uniform electric field around a single insulating hurdle on the channel sidewall.

Numerical Simulation of Multi-Physical Fields Coupling and Design of a Digital Microfluidics Chip

2012 ◽  
Vol 503 ◽  
pp. 359-365 ◽  
Author(s):  
Tao Chen ◽  
Li Guo Chen ◽  
Ming Qiang Pan ◽  
Ming Xiang Ling ◽  
Li Ning Sun
Keyword(s):  
Numerical Simulation ◽  
Electric Field ◽  
Microfluidic Chip ◽  
Stokes Equations ◽  
Driving Forces ◽  
Geometric Model ◽  
Digital Microfluidics ◽  
Electrowetting On Dielectric ◽  
Physical Fields ◽  
Digital Microfluidic

Due to its simple structure, low consumption of energy but strong driving forces, Electrowetting on Dielectric (EWOD) is used most frequently in digital microfluidics for manipulation and control of droplets. In this paper, the internal mechanism of EWOD is explained though establishing the geometric model of the unipolar board structure digital microfluidic chip. And the boundary conditions of equations are determined. Three coupling physical fields: electric field, flow field and temperature field in the digital microfluidic chip are simulated and analyzed. With the electric field equation coupled, Navier-Stokes equations and energy equation of the temperature control, the numerical simulation of the chip is conducted. The results show that the internal flow of micro-droplets is counterclockwise and swirling flow. The external flow velocity of micro-droplet is greater than the internal velocity. In addition, micro-droplets near the electrode applied temperature are higher than the internal temperature. Surface micromachining technologies are employed to fabricate the chip. Experimental results show that the droplet can be driven in a velocity of 25cm/s. It will possibly provide an effective solution to the manipulation of droplets.

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