Sentences with phrase «with magnetic particles»

Previous research had identified only cases in which bacteria as a whole, filled with magnetic particles, are being oriented like compass needles for swimming in the right direction.

These solutions are mixed with magnetic particles that help purify the sample before inserting it into a MinION DNA sequencer.

«The idea is to initiate specific biochemical processes in cells by flipping a magnetic switch,» says Jon Dobson, a biomedical engineer who has been manipulating cellular function with magnetic particles for more than 10 years at Keele University in Staffordshire, England.

A magnet entices ferrofluids — oil speckled with magnetic particles — to interact in strange yet spectacular formations of colour

Not exact matches

The so - called Carrington Event of 1859 began with a bright solar flare and an ejection of magnetized, high - energy particles that produced the most intense magnetic storm ever recorded on Earth.

By combining observations from the ground and in space, the team observed a plume of low - energy plasma particles that essentially hitches a ride along magnetic field lines — streaming from Earth's lower atmosphere up to the point, tens of thousands of kilometers above the surface, where the planet's magnetic field connects with that of the sun.

The existence of hypothetical particles called magnetic monopoles would explain why electric charge comes in integer multiples of the charge of an electron instead of a continuous range of values, Emily Conover reported in «Magnets with a single pole are still giving physicists the slip» (SN: 2/3/18, p. 10).

In the study, published today in Nature Communications, the researchers placed a magnetic particle in the center of a liquid film filled with swimming bacteria.

Read about a team studying how the sun interacts with Earth's magnetic field and the particles trapped in it, and how this type of interaction produces the northern and southern lights.

The downside is that the resulting magnetic field is complicated, with loops and whorls that will make calculating the particles» trajectories a major headache.

To create the wallpaper, the team started with steel foil sandwiched between layers of paper that are coated with magnetic paint — acrylic paint infused with iron particles.

If axions exist, they are expected to interact with photons, particles of light, from the magnetic field.

They become caught in powerful magnetic fields and are channeled into the upper atmosphere, where their interactions with gas particles, such as oxygen or nitrogen, set off spectacular bursts of light.

The next step will be to examine how magnetic microrollers behave under flow conditions with auxiliary particles, such as red and white blood cells, and whether it is possible to persuade the magnetic particles to move against the flow as well.

Solar particles (the electric current) stream down Earth's magnetic field lines (the tube) and collide with molecules of nitrogen and oxygen (the gas), exciting them until they glow in various colors.

«Comets carry with them a magnetic field created by streaming charged particles that interact with the solar wind,» Schultz said.

«As the gas collides with the lunar surface, the cometary magnetic field becomes amplified and recorded in the small particles when they cool.»

They occur when charged space particles, typically from the sun, stream along a planet's magnetic field lines and interact with atmospheric atoms, producing not only optical light but also radio emissions.

The observation of ionic distribution and the investigation of magnetic particles on the lunar surface gives researchers information on the material that composes the moon's surface and helps elucidate the moon's interaction with solar winds.

In a complementary paper, astrophysicist John Connerney of NASA's Goddard Space Flight Center in Greenbelt, Md., and colleagues look at how Jupiter's magnetic field interacts with the solar wind, a stream of charged particles flowing from the sun.

Also, each spacecraft is equipped with sensors to measure particle energy and position and determine pitch angle — that is, the angle of movement with respect to Earth's magnetic fields.

One of the issues with traditional magnetic memory is that capacity is limited by the superparamagnetic limit - essentially the size of the particles used in the memory.

Launched in 1997, Cassini has been exploring the Saturn system for more than nine years with a suite of instruments that also includes visible - light cameras, ultraviolet and infrared spectrometers, as well as magnetic field and charged particle sensors.

The material the scientists worked with, zirconium pentatelluride, has a surprising trait: When placed in parallel electric and magnetic fields, it responds with an imbalance in the number of right - and left - handed particles — a chiral imbalance.

Li's team showed that during CRAND, cosmic rays entering Earth's atmosphere collide with neutral atoms, creating a splash that produces charged particles, including electrons, that become trapped by Earth's magnetic field.

But adding parallel magnetic and electric fields introduces a chiral preference: The magnetic field aligns the spins of the positive and negative particles in opposite directions, and the electric field starts the oppositely charged particles moving — positive particles move with the electric field, negative ones against it.

But whereas an MRI subjects materials to a magnetic field and measures how the polarity of the atoms in that material change, NDP hits materials with a low - energy neutron beam and counts the different kinds of charged particles that are created when an individual neutron happens to collide with one of the atoms in the test material and annihilates it.

«Instead of a prolonged, comet - like tail, this rough bubble - shape of the heliosphere is due to the strong interstellar magnetic field — much stronger than what was anticipated in the past — combined with the fact that the ratio between particle pressure and magnetic pressure inside the heliosheath is high,» said Kostas Dialynas, a space scientist at the Academy of Athens in Greece and lead author on the study.

(If the magnetic field orientation is flipped relative to the electric field, the preference would be for left - handed particles, but still with opposite charges separating.)

To test the particles, the researchers implanted mice with a tumorlike gel saturated with nanoparticles and placed those mice into the wells of cup - shaped electrical coils, which activated the nanoparticles via magnetic pulses.

Because the nickel layer is magnetic, the particles» movement and orientation could be precisely controlled with a magnet.

An intriguing aspect of axion - like particles is their ability to convert into gamma rays and back again when they interact with strong magnetic fields.

How do you figure out what powers solar flares — the intense bursts of radiation coming from the release of magnetic energy associated with sunspots — when you must rely on observing only the light and particles that make their way to near - Earth's orbit?

Mars was flooded with an invisible tide of charged particles from the coma, and the powerful magnetic field around the comet temporarily merged with — and overwhelmed — the planet's own weak one.

The scientists begin by assuming that particles with lower energies take longer to travel through turbulent magnetic fields, much like a lazy moth takes longer to cross a windy valley than a quick bee.

Neutrinos will interact with the iron — which will be layered in sheets — and spew out charged particles, whose paths will be bent by the iron's magnetic field.

ITER, which will be finished in 2019 or 2020, will attempt fusion by containing a plasma with enormous magnetic fields and heating it with particle beams and radio waves.

So light polarized along the magnetic field interacts more strongly with the virtual particles and is slowed ever so slightly compared with light polarized perpendicular to the field, Heyl says.

«With only charged particles in the model, the magnetic fields were stuck, and couldn't rise to the surface.

That confirmed it was definitely coming from the crust, and was not the result of the core's magnetic field interacting with charged particles from the sun, which would have produced a consistent signal at higher altitudes.

When a rotating magnetic field is applied to a spider web - shaped magnetic pattern, it can attract biomolecules labeled with superparamagnetic particles faster to the sensor.

Because neutrons are microscopic magnets that carry no charge, they can be used to interact with and excite other magnetic particles in the system without compromising the integrity of the material's atomic structure.

Plasmas, being composed of charged particles (some with very high velocities), can be manipulated by magnetic fields.

Schwadron and colleagues solved the discrepancies using triangulation of four different datasets gathered by other spacecraft, including the Interstellar Boundary Explorer (IBEX) mission that in 2009 discovered a mysterious «ribbon» of energy and particles believed to be associated with the interstellar magnetic field.

They laced the fluid with particles of gadolinium, a rare - earth metal that is highly magnetic and sometimes given to patients to increase contrast in an MRI.

«We believe that this is an important piece of the puzzle for understanding how magnetic reconnection works, how charged particles are accelerated, and how particles from different regions can be mixed with each other,» says Daniel Graham.

Auroras are created when high - energy particles from the solar wind interact with a planet's magnetic field.

We know that for energies of modest to intermediate energy, the culprit or the source of the acceleration appears to be the shock front that surrounds a [an] expanding supernova blast wave; that is to say, we have a star that undergoes a massive cosmic explosion [and] drives a strong shock wave out into the surrounding interstellar medium, and the gas around the shock wave, and all the magnetic fields associated with it are capable of accelerating particles to very high energies; and also incidentally magnifying and amplifying the magnetic field associated with that shock front and giving a lot of x-ray emission and radio emission and so on, and so we've understood that.

A wind of charged particles blows outwards from the Sun, carrying a magnetic field with it.

Scientists have now learned, despite its ordinary name, that Steve may be an extraordinary puzzle piece in painting a better picture of how Earth's magnetic fields function and interact with charged particles in space.