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Materials Science Dec 8, 2020

Magnetic bacteria as micropumps

ETH scientists use magnetic bacteria to control liquids at the micro level. They are already thinking about using them in the human bloodstream for precision delivery of cancer drugs to a tumor.

Nanophysics Nov 27, 2020

Microswimmers are inanimate microparticles, but they move like moths to the light

The Freigeist group at TU Dresden, led by chemist Dr. Juliane Simmchen, has studied an impressive behavior of synthetic microswimmers: as soon as the photocatalytic particles leave an illuminated zone, they flip independently ...

Bio & Medicine Nov 10, 2020

Scientists use bacteria as micro-3-D printers

A team at Aalto University has used bacteria to produce intricately designed three-dimensional objects made of nanocellulose. With their technique, the researchers are able to guide the growth of bacterial colonies through ...

General Âé¶¹ÒùÔºics Oct 1, 2020

What tiny surfing robots teach us about surface tension

Propelled by chemical changes in surface tension, microrobots surfing across fluid interfaces lead researchers to new ideas.

General Âé¶¹ÒùÔºics Sep 4, 2020

Opto-thermoelectric microswimmers

In a recent report, Xiaolei Peng and a team of scientists in materials science and engineering at the University of Texas, U.S., and the Tsinghua University, China, developed opto-thermoelectric microswimmers bioinspired ...

Plants & Animals Jul 10, 2020

How Venus flytraps snap

Venus flytraps catch spiders and insects by snapping their trap leaves. This mechanism is activated when unsuspecting prey touch highly sensitive trigger hairs twice within 30 seconds. A study led by researchers at the University ...

General Âé¶¹ÒùÔºics Jun 11, 2020

Âé¶¹ÒùÔºics 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. Âé¶¹ÒùÔºicists from the Cluster of Excellence Centre ...

General Âé¶¹ÒùÔºics Jun 4, 2020

Active particles with light-switchable propulsion direction and reversible interactions

Researchers from the Faculty of Âé¶¹ÒùÔºics 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 ...

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