scholarly journals Simulation of BNNSs Dielectrophoretic Motion under a Nanosecond Pulsed Electric Field

Nanomaterials ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 682
Author(s):  
Yan Mi ◽  
Xin Ge ◽  
Jinyan Dai ◽  
Yong Chen ◽  
Yakui Zhu

Using a nanosecond pulsed electric field to induce orientation and arrangement of insulating flake particles is a novel efficient strategy, but the specific mechanism remains unclear. In this study, the dielectrophoretic motion of boron nitride nanosheets (BNNSs) in ultrapure water under a nanosecond pulsed electric field is simulated for the first time. First, the simulation theory is proposed. When the relaxation polarization time of the dielectric is much shorter than the pulse voltage width, the pulse voltage high level can be considered a short-term DC voltage. On this basis, the Arbitrary Lagrangian–Euler (ALE) method is used in the model, considering the mutual ultrapure water–BNNS particles-nanosecond pulsed electric field dielectrophoretic interaction, to study the influence of different BNNSs self-angle α and relative angle β on local orientation and global arrangement. The particles are moved by the dielectrophoretic force during the pulse voltage high level and move with the ultrapure water flow at the zero level, without their movement direction changing during this period, so the orientation angle and distance changes show step-like and wave-like curves, respectively. The model explains the basic mechanism of dielectrophoretic motion of BNNSs under a pulsed electric field and summarizes the motion law of BNNSs, providing a reference for subsequent research.

2019 ◽  
Vol 30 (3) ◽  
pp. 392-401 ◽  
Author(s):  
Jan E. Azarov ◽  
Iurii Semenov ◽  
Maura Casciola ◽  
Andrei G. Pakhomov

2020 ◽  
Vol 46 (6) ◽  
pp. 803-809 ◽  
Author(s):  
Girish S. Munavalli ◽  
Brian D. Zelickson ◽  
Mona M. Selim ◽  
Suzanne L. Kilmer ◽  
Thomas E. Rohrer ◽  
...  

2019 ◽  
Vol 5 (3) ◽  
pp. 1900669 ◽  
Author(s):  
Daniel Havelka ◽  
Djamel Eddine Chafai ◽  
Ondrej Krivosudský ◽  
Anastasiya Klebanovych ◽  
František Vostárek ◽  
...  

2020 ◽  
Vol 10 (12) ◽  
pp. 4244
Author(s):  
Paulius Butkus ◽  
Arūnas Murauskas ◽  
Sonata Tolvaišienė ◽  
Vitalij Novickij

Electroporation is a pulsed electric field triggered phenomenon of cell permeabilization, which is extensively used in biomedical and biotechnological context. There is a growing scientific demand for high-voltage and/or high-frequency pulse generators for electropermeabilization of cells (electroporators). In the scope of this article we have reviewed the basic topologies of nanosecond pulsed electric field (nsPEF) generators for electroporation and the parametric capabilities of various in-house built devices, which were introduced in the last two decades. Classification of more than 60 various nsPEF generators was performed and pulse forming characteristics (pulse shape, voltage, duration and repetition frequency) were listed and compared. Lastly, the trends in the development of the electroporation technology were discussed.


ACS Omega ◽  
2017 ◽  
Vol 2 (6) ◽  
pp. 2916-2924 ◽  
Author(s):  
Kamlesh Awasthi ◽  
Takakazu Nakabayashi ◽  
Liming Li ◽  
Nobuhiro Ohta

Micron ◽  
2017 ◽  
Vol 100 ◽  
pp. 45-49 ◽  
Author(s):  
Diganta Dutta ◽  
Xavier-Lewis Palmer ◽  
Anthony Asmar ◽  
Michael Stacey ◽  
Shizhi Qian

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