An electromagnetic micromanipulation system for single-cell manipulation

Piat, Emmanuel; Gauthier, Michaël

doi:10.1163/156856302322756450

Cited by 57 publications

(33 citation statements)

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“…Magnetic force torque aims to put the pusher on the glass slide, while magnetic torque aims to align pusher on the magnetic field lines. In microscale, magnetic torque is greater than magnetic force torque, and the pusher remains aligned on the magnetic field line, the latter fact proved in [10].…”

Section: A Micropusher Orientationmentioning

confidence: 92%

“…This article therefore proposes a specific micro-macro positioning strategy for control of the pushed object's position. Previous studies of the micromanipulation device were undertaken in [9,10]. Modelling of the pusher behaviour in function of both friction properties and magnetic properties were studied in [10].…”

Section: Introductionmentioning

confidence: 99%

“…Previous studies of the micromanipulation device were undertaken in [9,10]. Modelling of the pusher behaviour in function of both friction properties and magnetic properties were studied in [10]. This article focuses on the strategy used for automatic control of the position of the manipulated object.…”

Section: Introductionmentioning

confidence: 99%

“…This article focuses on the strategy used for automatic control of the position of the manipulated object. Since a presentation of pusher behaviour is necessary to understand control strategy, Part III is devoted to a summary of the model presented in [10].…”

Section: Introductionmentioning

confidence: 99%

“…Part III describes micropusher behaviour in function of magnet position, and summarises the model presented in [10]. Part IV presents control strategy and the controller.…”

Section: Introductionmentioning

confidence: 99%

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Control of a particular micro-macro positioning system applied to cell micromanipulation

Gauthier

Piat

2006

IEEE Trans. Automat. Sci. Eng.

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Abstract-Biological research requires new tools for cell micromanipulations. Currently, biological cell sizes range from a few to hundreds of micrometers, their manipulation therefore belonging to the field of microrobotics. This paper presents a new wireless micromanipulation system which allows cells placed in a droplet of liquid to be pushed on a glass slide. The cell micropusher is a ferromagnetic object which follows the movement of a permanent magnet located under the glass slide. It has been proved in previous works that two kinds of micropusher movements can induce a movement of the pushed object: turning the micropusher around the contact point (rotation), or moving the micropusher in translation. Rotation allows an object to be placed with a precision below 1 µm ,but acts within a narrow range. Translation allows placement of an object with lower accuracy, but within a wide range. We propose a specific coarse-fine control strategy to push an object, with good precision, within a wide range. Furthermore, experimentation on polystyrene balls of 50 µm in diameter, and immature human oocytes of 150 µm in diameter are presented.

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Section: A Micropusher Orientationmentioning

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…Part III describes micropusher behaviour in function of magnet position, and summarises the model presented in [10]. Part IV presents control strategy and the controller.…”

Section: Introductionmentioning

confidence: 99%

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