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Search results for Brownian motion

General Âé¶¹ÒùÔºics 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 ...

General Âé¶¹ÒùÔºics Aug 28, 2020

Demonstrating vortices as Brownian particles in turbulent flows

Brownian motion of particles in fluid is a common collective behavior in biological and physical systems. In a new report on Science Advances, Kai Leong Chong, and a team of researchers in physics, engineering, and aerospace ...

Biochemistry Aug 7, 2020

Origins of life: Chemical evolution in a tiny Gulf Stream

Chemical reactions driven by the geological conditions on the early Earth might have led to the prebiotic evolution of self-replicating molecules. Scientists at Ludwig-Maximilians Universitaet (LMU) in Munich now report on ...

Materials Science Aug 3, 2020

Mathematical modeling reveals how chitinase, a molecular monorail, obeys a one-way sign

A novel mathematical modeling method has been developed to estimate operation models of biomolecular motors from single-molecule imaging data of motion with the Bayesian inference framework. The operation mechanism of a linear ...

Materials Science Jul 30, 2020

Challenging a central tenet of chemistry

Steve Granick, Director of the IBS Center for Soft and Living Matter and Dr. Huan Wang, Senior Research Fellow, report together with 5 interdisciplinary colleagues in the July 31 issue of the journal Science that common chemical ...

General Âé¶¹ÒùÔºics Jul 27, 2020

How microscopic scallops wander

All microscopic objects, from enzymes to paint particles, are jittering constantly, bombarded by solvent particles: this is called Brownian motion. How does this motion change when the object is flexible instead of rigid? ...

Biotechnology Jun 24, 2020

A vital game of hide-and-seek elucidated by novel single-molecule microscopy

Life depends on an intricate game of hide-and-seek taking place inside the cell. New research, now published in the journal Nature, sheds light on the mechanisms with which DNA-binding proteins search the genome for their ...

Nanomaterials Jun 2, 2020

Exotic nanotubes move in less-mysterious ways

Boron nitride nanotubes are anything but boring, according to Rice University scientists who have found a way to watch how they move in liquids.

Nanophysics May 19, 2020

Scientists lead development of novel acoustofluidic technology that isolates submicron particles

Acoustofluidics is the fusion of acoustics and fluid mechanics that provides a contact-free, rapid and effective manipulation of fluids and suspended particles. The applied acoustic wave can produce a non-zero time-averaged ...

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