In order to track the movements of the cells, his team attached tiny magnetic particles to them before they transplanted them, and also injected them with a dye.
If the antibody method is being used, the tester deposits a droplet of sample fluid that has been seeded with magnetic particles coated with the appropriate antibodies onto the chip's surface.
To Dr Baselt this suggested that tiny magnetic particles might be attached to molecules using either antibodies (which will bond to proteins, sugars and so on) or single-stranded DNA (which will bond to a complementary DNA strand to form the famous double helix).
Even so, he pointed out that some nanoparticles potentially serving as the basis for savvy devices of the future are already in use, including magnetic iron oxide particles used for advanced body imaging.
The magnetic field forces the particles toward the north and south poles.
The magnetic field associated with these particles helps protect the Earth from cosmic rays by deflecting them from the planet.
Large stars end in the more spectacular explosions known as supernovae, which generate fast-moving particles in extraordinarily high magnetic fields.
Scientists say the northern lights are created by the sun's super hot atmosphere, which blasts particles into the protective magnetic field surrounding the Earth.
Powerful and rapidly changing magnetic fields were looking to see tiny particles of water travelling along the larger nerve fibres.
Magnetic fields in this swirling mass are twisted into a kind of "magnetic spaghetti, " and electrically charged particles squirt out through this spaghetti at nearly the speed of light, blasting out into the universe across thousands of light-years.
There seems to be no way that particles streaming past the earth along magnetic field lines can make a turn, move at right angles to those lines for a bit and end up inside the magnetosphere.
The radiation belt, which contains "two concentric rings of charged particles trapped by Earth's magnetic fields" doesn't affect current astronauts going to and from space because they are moving too fast to be hit by the radiation.
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But gamma-ray telescopes are also confused by charged particles trapped in the earth's magnetic field.
But since the wind consists of charged particles, it will interact with a magnetic field.
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When Cluster II passes through these so-called polar cusps, instruments on board each of its satellites will measure the magnetic field, electrical current and number of charged particles within the tetrahedron.
But as a back-up the Rochester researchers are also considering a magnetic technique that would be able to detect iron particles left over from the original ink, even in places where the pigment itself has faded away completely.
These craft will study the interaction between the solar wind (the breeze of electrically charged particles emitted by the sun) and the earth's magnetic field.
But because these particles are electrically charged, they also interact with the Earth's magnetic field.
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