Science news articles about 'magnetic particles'

  • A novel approach to create high-density magnetic data storage

    ... storage densities on computer disks, the last decades were dominated by optimisation of magnetic materials, i.e. the magnetic particles (grains) were gradually shrunk while, at the same time, ...
  • Magnetic nanoparticles navigate therapeutic genes through the body

    ... a highly sensitive measuring method with which the efficiency of this therapy can be investigated: Small magnetic particles which are situated on the planted gene or on the planted cell can with the ...
  • Magnetic nano-'shepherds' organize cells

    ... and University of Massachusetts, Amherst, created an environment where magnetic particles suspended within a specialized liquid solution acted like molecular sheep dogs by nudging free ...
  • Magnetic monopoles detected in a real magnet for the first time

    ... Science within the Science Express web site on Sept. 3. Magnetic monopoles are hypothetical ... material world this is quite exceptional because magnetic particles are usually observed as dipoles, north ...
  • Magnetic mixing creates quite a stir

    ... of mixing, when one turns on a particular kind of magnetic field, the magnetic particles suspended in the fluid form ... paper also explains why a simple rotating magnetic field doesn't induce mixing, ...
  • Novel NIST connector uses magnets for leak-free microfluidic devices

    ... magnets pulled apart and then snapped back together, Atencia realized that he had his ... time and fluctuations in temperature), cells tagged with magnetic particles, or high-temperatures (greater than 80 ...
  • Lab in a drop

    ... directly on the PCR chip, where it is mixed with a drop that contains magnetic particles. These particles are equipped with antibodies on their surface, antibodies that bind specifically to the ...
  • Gene shows potential as imaging tool

    ATLANTA, June 5 (UPI) -- U.S. scientists say mammalian cells can produce tiny magnetic particles after introduction of a bacterial gene, providing a possible new imaging tool.
  • Nerve repair, biodetectors, proton therapy, microscopic medical devices

    ... interacting cells and molecules using magnetic forces. This technology, which relies on attaching microscopic magnetic particles, allows them to measure exactly how strongly the interactions are ...
  • Progress toward new storage media

    ... ; we are however getting close to the limit. Thermal excitation occasionally causes some of the magnetic particles to flip in the other direction. When the domains are very small, the entire cell can ...
  • A card-swipe for medical tests

    ... a proof of principle." The experiment was repeated hundreds of times with different concentrations of magnetic particles bound to the biological substance. "We could detect as few as 800 magnetic ...
  • Stanford blood scanner detects even faint indicators of cancer

    ... is rare in biological systems, so any magnetic signal in a blood serum sample stands out ... night sky. By tagging cancer proteins with tiny magnetic particles, rather than electrically charged or glowing ...
  • Nanoscopic probes can track down and attack cancer cells

    ... treat as well as reveal cancer cells." Scientists have developed probes that use gold nanorods or magnetic particles, but Irudayaraj's nanoprobes use both, making them easier to track with different ...
  • Medical probes get easy to spot

    Gold nanorods and magnetic particles combine to make highly visible structures
  • 4-in-1

    ... into the cell interior with their cargo intact (receptor-mediated endocytosis). The magnetic particles not only act as an aide for transport, they are also a contrast agent for MRI. This reveals ...

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