Search results for Brownian motion

Biochemistry Mar 19, 2021

The eukaryotic cell nucleus resembles the layout of a superstore

The headquarter of a eukaryotic cell is the nucleus, and most of the cell's information and instructions are stored there in the form of DNA (Deoxyribonucleic acid). The DNA, which is twisted, rolled and bundled in a two-meter-long ...

Nanophysics Feb 9, 2021

SINGLE: An open-source software package to identify the atomic-resolution structure of nanocrystals

Materials scientists typically use solution-phase transmission electron microscopy (TEM) to reveal the unique physiochemical properties of three-dimensional (3-D) structures of nanocrystals. In a new report on Science Advances, ...

Plasma Physics Jan 19, 2021

Experimental evidence of an intermediate state of matter between a crystal and a liquid

Scientists from the Joint Institute for High Temperatures Russian Academy of Sciences (JIHT RAS) and Moscow Institute of Physics and Technology (MIPT) have experimentally confirmed the presence of an intermediate phase between ...

Nanophysics Jan 14, 2021

Acoustofluidic centrifuge for nanoparticle enrichment and assortment

Liquid droplets have recently gained renewed attention as a simplified model for a variety of fascinating physical phenomena at the scale of the cell nucleus to stellar black holes. In a new report now published in Science ...

Other Dec 15, 2020

Best of Last Year: The top Phys.org articles of 2020

It was a good year for research of all kinds as a team of geophysicists at the University of Maryland detected unexpected widespread structures near Earth's core. The structures were revealed as the researchers analyzed thousands ...

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 ...

Analytical Chemistry Nov 23, 2020

Light-controlled nanomachine controls catalysis

The vision of the future of miniaturization has produced a series of synthetic molecular motors that are driven by a range of energy sources and can carry out various movements. A research group at Friedrich-Alexander-Universität ...

General Physics Oct 2, 2020

Physicists build circuit that generates clean, limitless power from graphene

A team of University of Arkansas physicists has successfully developed a circuit capable of capturing graphene's thermal motion and converting it into an electrical current.

General Physics Sep 25, 2020

The realization of active microscale Marangoni surfers

Marangoni surfers are small particles that self-propel while straddling a fluid-fluid interface in a way similar to that in which a surfer moves on the surface of a wave. In recent years, self-propelling particles have become ...

Plants & Animals Sep 17, 2020

Chaotic 'Lévy walks' are a good strategy for animals

A paper published in the Proceedings of the National Academy of Science (PNAS) explains the advantage that animals have of using a specific type of chaotic type of movement called a "Lévy walk,' and how this type of behavior ...

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