Soft microgripping using ionic liquids for high temperature and vacuum applications

Amin, Abdullah Al; Jagtiani, Ashish V.; Vasudev, Abhay; Hu, Jun; Zhe, Jiang

doi:10.1088/0960-1317/21/12/125025

Cited by 11 publications

(7 citation statements)

References 35 publications

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“…Capillary adhesion has been used specifically for manipulation of micro‐objects . Grippers using this adhesion technology exploit capillary lifting force of a liquid (generally water) bridging the gripper and the object.…”

Section: Gripping By Controlled Adhesionmentioning

confidence: 99%

Soft Robotic Grippers

et al. 2018

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Advances in soft robotics, materials science, and stretchable electronics have enabled rapid progress in soft grippers. Here, a critical overview of soft robotic grippers is presented, covering different material sets, physical principles, and device architectures. Soft gripping can be categorized into three technologies, enabling grasping by: a) actuation, b) controlled stiffness, and c) controlled adhesion. A comprehensive review of each type is presented. Compared to rigid grippers, end-effectors fabricated from flexible and soft components can often grasp or manipulate a larger variety of objects. Such grippers are an example of morphological computation, where control complexity is greatly reduced by material softness and mechanical compliance. Advanced materials and soft components, in particular silicone elastomers, shape memory materials, and active polymers and gels, are increasingly investigated for the design of lighter, simpler, and more universal grippers, using the inherent functionality of the materials. Embedding stretchable distributed sensors in or on soft grippers greatly enhances the ways in which the grippers interact with objects. Challenges for soft grippers include miniaturization, robustness, speed, integration of sensing, and control. Improved materials, processing methods, and sensing play an important role in future research.

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Section: Gripping By Controlled Adhesionmentioning

confidence: 99%

Soft Robotic Grippers

et al. 2018

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“…Additionally, substitution of ionic liquids for water enabled this microgripper to function in high temperature and vacuum environments. 123 Subsequently, Zhao et al 124 reported that adhesion between the droplet and superhydrophobic MnO 2 nanotube arrays could be controlled by the polarity of the applied electric field. They demonstrated controllable liquid transportation between the upper and lower electrode plates.…”

Section: Capillary Bridgementioning

confidence: 99%

Recent progress of electrowetting for droplet manipulation: from wetting to superwetting systems

Teng

Tian

et al. 2020

Mater. Chem. Front.

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“…Recently, the electrowetting behavior of ionic liquids has attracted a great deal of attention because of their widespread application as electrowetting agents in many different engineering systems (i.e., digital microfluidic chips, microgrippers, tunable RC filters, and variable-focus lenses). Paneru et al , studied the dynamic electrowetting behavior of an ionic liquid droplet in a solid/liquid/liquid system.…”

Section: Introductionmentioning

confidence: 99%

Molecular Dynamics Simulation of the Electrically Induced Spreading of an Ionically Conducting Water Droplet

Song

Liu

2014

Langmuir

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Molecular dynamics simulations are applied to study the spreading behavior of a nanosized water droplet that contains freely moving Na(+)/Cl(-) ions subject to an imposed electric field parallel to a solid surface. Results show that the positive and negative ions move relatively freely in response to an applied electric field, whereas polar water molecules realign themselves. These localized behaviors of the ions and the polar molecules are affected by both the applied electric field strength and the ion concentration, which in turn determine the deformation and spreading of the droplet on a solid substrate. The presence of the freely moving ions causes the ion-containing droplet to spread differently from a droplet of pure water. In a weak electric field of 0.05 V/Å, a droplet of a lower ion concentration spreads asymmetrically and the spreading asymmetry is considerably smaller than that associated with a pure water droplet of the same size. In a stronger field of 0.1 V/Å, a droplet of a higher ion concentration spreads symmetrically and completely wets the solid surface whereas a less ionically conducting droplet undergoes an asymmetric-to-symmetric transition in spreading until it reaches equilibrium.

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Soft microgripping using ionic liquids for high temperature and vacuum applications

Cited by 11 publications

References 35 publications

Soft Robotic Grippers

Soft Robotic Grippers

Recent progress of electrowetting for droplet manipulation: from wetting to superwetting systems

Molecular Dynamics Simulation of the Electrically Induced Spreading of an Ionically Conducting Water Droplet

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