Phase-shift feedback control for dielectrophoretic micromanipulation
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F18%3A00321917" target="_blank" >RIV/68407700:21230/18:00321917 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1039/c8lc00113h" target="_blank" >http://dx.doi.org/10.1039/c8lc00113h</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1039/c8lc00113h" target="_blank" >10.1039/c8lc00113h</a>
Alternative languages
Result language
angličtina
Original language name
Phase-shift feedback control for dielectrophoretic micromanipulation
Original language description
In this paper, we present a novel approach to noncontact micromanipulation by controlled dielectrophoresis (DEP). To steer micro-objects in the desired way, the solutions reported in the literature use either DEP cages or amplitude modulation of the voltages applied to the electrodes. In contrast, we modulate the phases, that is, we control the phase shifts of the voltages applied to the electrodes, which simplifies the hardware implementation and extends the set of feasible forces. Furthermore, we introduce an innovative micro-electrode array layout, composed of four sectors with parallel (colinear) electrodes, which is capable of inducing an arbitrary movement in the manipulation area and is easy to fabricate using just an affordable one-layer technology. We then propose a closed-loop cascade control strategy based on real-time numerical optimization and deploy it to our experimental set-up. Numerical simulations and laboratory experiments demonstrate the manipulation capabilities such as positioning and steering of one or several microscopic objects (microspheres with a diameter of 50 μm) and even bringing two objects together and then separating them again. The results from simulations and experiments are compared and the positioning accuracy is evaluated in the whole manipulation area. The error in position is 8 μm in the worst case, which corresponds to 16% of the microsphere size or 0.7% of the manipulation range.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20204 - Robotics and automatic control
Result continuities
Project
<a href="/en/project/GBP206%2F12%2FG014" target="_blank" >GBP206/12/G014: Center for advanced bioanalytical technologies</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Lab on a Chip
ISSN
1473-0197
e-ISSN
1473-0189
Volume of the periodical
18
Issue of the periodical within the volume
12
Country of publishing house
GB - UNITED KINGDOM
Number of pages
9
Pages from-to
1793-1801
UT code for WoS article
000435115300011
EID of the result in the Scopus database
2-s2.0-85048447031