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Search results for microrobot

General Physics Jun 11, 2020

Physics principle explains order and disorder of swarms

Current experiments support the controversial hypothesis that a well-known concept in physics—a critical point—is behind the striking behavior of collective animal systems. Physicists from the Cluster of Excellence Centre ...

General Physics Jun 4, 2020

Active particles with light-switchable propulsion direction and reversible interactions

Researchers from the Faculty of Physics at the University of Warsaw, ETH in Zurich and the University of Cambridge have synthesized and analysed active microparticles self-propelling in a fluid and reversing their propulsion ...

Materials Science May 26, 2020

Controlling artificial cilia with magnetic fields and light

Researchers from North Carolina State University and Elon University have made artificial cilia, or hair-like structures, that can bend into new shapes in response to a magnetic field, then return to their original shape ...

Bio & Medicine May 6, 2020

Screw cancer: Microneedle sticks it to cancer tissue

A drug-loaded microrobotic needle effectively targets and remains attached to cancerous tissue in lab experiments without needing continuous application of a magnetic field, allowing more precise drug delivery. The details ...

Bio & Medicine Apr 7, 2020

Personalized microrobots swim through biological barriers, deliver drugs to cells

Tiny biohybrid robots on the micrometer scale can swim through the body and deliver drugs to tumors or provide other cargo-carrying functions. The natural environmental sensing tendencies of bacteria mean they can navigate ...

Materials Science Mar 31, 2020

A new tool for controlling reactions in microrobots and microreactors

In a new paper, Thomas Russell and postdoctoral fellow Ganhua Xie, at the University of Massachusetts Amherst and Lawrence Berkeley National Laboratory, report that they have used capillary forces to develop a simple method ...

Materials Science Feb 24, 2020

Programmable droplet manipulation by a magnetic-actuation robot

Droplet manipulation in materials science can contribute to water collection, medical diagnostics and drug delivery techniques. While structure-based liquid operations are widely used in nature and in bioinspired artificial ...

Nanophysics Feb 7, 2020

Magnetic microrobots use capillary forces to coax particles into position

At microscopic scales, picking, placing, collecting, and arranging objects is a persistent challenge. Advances in nanotechnology mean that there are ever more complex things we'd like to build at those sizes, but tools for ...

General Physics Dec 10, 2019

Insects' drag-based flight mechanism could improve tiny flying robots

Thrips are tiny insects 2 millimeters long, about as long as four human hairs are thick. Thrips are known for their unwelcome ability to devour garden plants and, lately, to inform the design of microrobotics.

Nanomaterials Nov 14, 2019

Graphene: The more you bend it, the softer it gets

New research by engineers at the University of Illinois combines atomic-scale experimentation with computer modeling to determine how much energy it takes to bend multilayer graphene—a question that has eluded scientists ...

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