Search results for Brownian motion

Nanomaterials Jul 27, 2021

Tracking the movement of a single nanoparticle

Based on the principle of interaction between matter and light, a new method has been developed to track and observe the Brownian motion of fast-moving nanometer-sized molecules, and measure the different fluorescence signals ...

Nanomaterials Jun 29, 2021

Speedy nanorobots could someday clean up soil and water, deliver drugs

University of Colorado Boulder researchers have discovered that minuscule, self-propelled particles called "nanoswimmers" can escape from mazes as much as 20 times faster than other passive particles, paving the way for their ...

General Physics Jun 16, 2021

Particles with 'eyes' allow a closer look at rotational dynamics

Colloids—mixtures of particles made from one substance, dispersed in another substance—crop up in numerous areas of everyday life, including cosmetics, food and dyes, and form important systems within our bodies. Understanding ...

General Physics May 25, 2021

Probing deeper into origins of cosmic rays

Cosmic rays are high-energy atomic particles continually bombarding Earth's surface at nearly the speed of light. Our planet's magnetic field shields the surface from most of the radiation generated by these particles. Still, ...

General Physics Apr 14, 2021

Challenging Einstein's picture of Brownian motion

Around a decade ago, the discovery of Fickian yet non-Gaussian Diffusion (FnGD) in soft and biological materials broke up the celebrated Einstein's picture of Brownian motion. To date, such an intriguing phenomenon is still ...

Materials Science Mar 29, 2021

Scientists find explanation for abnormally fast release of gas from nuclear fuel

Scientists at MIPT have found a possible explanation for the anomalously fast release of gas from nuclear fuel. Supercomputer simulations have uncovered an unexpected mechanism for accelerating the escape of gas bubbles from ...

Nanophysics Mar 25, 2021

On-chip torsion balance with femtonewton force resolution at room temperature

The torsion balance contains a rigid balance beam suspended by a fine thread as an ancient scientific instrument that continues to form a very sensitive force sensor to date. The force sensitivity is proportional to the lengths ...

Biotechnology Mar 22, 2021

Novel DNA sensor can rapidly detect antibiotic-resistant pathogens

Antibiotics have revolutionized the field of medicine by making it possible to treat most known microbial diseases today. However, their uncontrolled usage has led to the major global problem of antibiotic resistance. As ...

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, ...

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