Search results for Brownian motion

General Physics Jul 31, 2014

Tiny magnets, huge fields: Nanoscale ferromagnetic electrodes create chemical equivalent of solid-state spin valve

In the study of ways to determine the position of and manipulate magnetic nanoparticles – a capability that would benefit a wide range of applications – there's good news and bad: While a magnetic gradient force field (a ...

Nanophysics Jul 30, 2014

World's smallest propeller could be used for microscopic medicine

If you thought that the most impressive news in shrinking technology these days was smart watches, think again. Scientists are quietly toiling in their laboratories to create robots that are only nanometers—billionths of ...

Polymers Jul 28, 2014

Seeing is bead-lieving: Scientists create model 'bead-spring' chains with tunable properties

Rice University researchers are using magnetic beads and DNA "springs" to create chains of varying flexibility that can be used as microscale models for polymer macromolecules.

Cell & Microbiology Jul 2, 2014

Stressed yeast paint a picture of Dorian Gray

We all pass unwanted stuff on to our children—emotional baggage, peculiar habits, unfashionable furniture. Cells do the same thing when they divide; along with their newly replicated genomes and the vital cellular organelles, ...

General Physics May 27, 2014

New model uses the laws of molecular fluid dynamics to aid the analysis of financial markets

A new model to aid the analysis of financial markets uses the laws of molecular fluid dynamics to describe order-book transactions.

Condensed Matter May 13, 2014

Rounding up the BCATs on the Space Station

Although it may not be herding cats exactly, all the NASA-supported Binary Colloidal Alloy Tests (BCAT) studies have ended on the International Space Station, and the experimental samples are being rounded up and returned ...

Nanophysics May 4, 2014

New method for measuring temperature of nanoscale objects discovered

Temperature measurements in our daily life are typically performed by bringing a thermometer in contact with the object to be measured. However, measuring the temperature of nanoscale objects is a much more tricky task due ...

Nanophysics Apr 9, 2014

JILA's short, flexible, reusable AFM probe

(Phys.org) —JILA researchers have engineered a short, flexible, reusable probe for the atomic force microscope (AFM) that enables state-of-the-art precision and stability in picoscale force measurements. Shorter, softer and ...

Bio & Medicine Apr 3, 2014

Tiny biomolecular tweezers studying force effect of cells

A new type of biomolecular tweezers could help researchers study how mechanical forces affect the biochemical activity of cells and proteins. The devices—too small to see without a microscope—use opposing magnetic and electrophoretic ...

Nanomaterials Mar 28, 2014

Diamonds are an oil's best friend

(Phys.org) —A mixture of diamond nanoparticles and mineral oil easily outperforms other types of fluid created for heat-transfer applications, according to new research by Rice University.

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