Correction: Non-linear alignment dynamics in suspensions of platelets under rotating magnetic fields

Randall M. Erb; Jana Segmehl; Michalis Charilaou; Jörg F. Löffler; André R. Studart

doi:10.1039/c9sm90079a

Correction: Non-linear alignment dynamics in suspensions of platelets under rotating magnetic fields

Soft Matter ◽

10.1039/c9sm90079a ◽

2019 ◽

Vol 15 (17) ◽

pp. 3628-3628

Author(s):

Randall M. Erb ◽

Jana Segmehl ◽

Michalis Charilaou ◽

Jörg F. Löffler ◽

André R. Studart

Keyword(s):

Magnetic Fields ◽

Soft Matter ◽

Rotating Magnetic Fields ◽

Non Linear ◽

Linear Alignment

Correction for ‘Non-linear alignment dynamics in suspensions of platelets under rotating magnetic fields’ by Randall M. Erb et al., Soft Matter, 2012, 8, 7604–7609.

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Non-linear alignment dynamics in suspensions of platelets under rotating magnetic fields

Soft Matter ◽

10.1039/c2sm25650a ◽

2012 ◽

Vol 8 (29) ◽

pp. 7604-7609 ◽

Cited By ~ 74

Author(s):

Randall M. Erb ◽

Jana Segmehl ◽

Michalis Charilaou ◽

Jörg F. Löffler ◽

André R. Studart

Keyword(s):

Magnetic Nanoparticles ◽

Magnetic Fields ◽

Applied Field ◽

Rotating Magnetic Fields ◽

Non Linear ◽

Linear Alignment

Under rotating magnetic fields, micron-sized platelets suspended in a fluid and decorated with magnetic nanoparticles are found to shift from a rotating motion to a biaxially-aligned state above a given frequency of the applied field.

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Magnetically Aligned Nanorods in Alginate Capsules (MANiACs): Soft Matter Tumbling Robots for Manipulation and Drug Delivery

Micromachines ◽

10.3390/mi10040230 ◽

2019 ◽

Vol 10 (4) ◽

pp. 230 ◽

Cited By ~ 6

Author(s):

Lamar Mair ◽

Sagar Chowdhury ◽

Genaro Paredes-Juarez ◽

Maria Guix ◽

Chenghao Bi ◽

...

Keyword(s):

Drug Delivery ◽

Magnetic Fields ◽

Soft Matter ◽

Lab On A Chip ◽

Rotating Magnetic Fields ◽

Significant Potential ◽

Alginate Capsules ◽

Tissue Surfaces ◽

Tumbling Motion ◽

Magnetically Aligned

Soft, untethered microrobots composed of biocompatible materials for completing micromanipulation and drug delivery tasks in lab-on-a-chip and medical scenarios are currently being developed. Alginate holds significant potential in medical microrobotics due to its biocompatibility, biodegradability, and drug encapsulation capabilities. Here, we describe the synthesis of MANiACs—Magnetically Aligned Nanorods in Alginate Capsules—for use as untethered microrobotic surface tumblers, demonstrating magnetically guided lateral tumbling via rotating magnetic fields. MANiAC translation is demonstrated on tissue surfaces as well as inclined slopes. These alginate microrobots are capable of manipulating objects over millimeter-scale distances. Finally, we demonstrate payload release capabilities of MANiACs during translational tumbling motion.

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Fast and programmable locomotion of hydrogel-metal hybrids under light and magnetic fields

Science Robotics ◽

10.1126/scirobotics.abb9822 ◽

2020 ◽

Vol 5 (49) ◽

pp. eabb9822

Author(s):

Chuang Li ◽

Garrett C. Lau ◽

Hang Yuan ◽

Aaveg Aggarwal ◽

Victor Lopez Dominguez ◽

...

Keyword(s):

Magnetic Fields ◽

Soft Matter ◽

Energy Input ◽

Aqueous Media ◽

Polymer Network ◽

Theoretical Description ◽

External Energy ◽

Rotating Magnetic Fields ◽

Inclined Surfaces ◽

Living Organisms

The design of soft matter in which internal fuels or an external energy input can generate locomotion and shape transformations observed in living organisms is a key challenge. Such materials could assist in productive functions that may range from robotics to smart management of chemical reactions and communication with cells. In this context, hydrated matter that can function in aqueous media would be of great interest. Here, we report the design of hydrogels containing a scaffold of high–aspect ratio ferromagnetic nanowires with nematic order dispersed in a polymer network that change shape in response to light and experience torques in rotating magnetic fields. The synergistic response enables fast walking motion of macroscopic objects in water on either flat or inclined surfaces and also guides delivery of cargo through rolling motion and light-driven shape changes. The theoretical description of the response to the external energy input allowed us to program specific trajectories of hydrogel objects that were verified experimentally.

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