Pingie: HTTP:: Magnetic Fields Make Nanostars 039 Twinkle 039

HTTP:: Magnetic Fields Make Nanostars 039 Twinkle 039
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Biomedical imaging techniques refer to tracking down particles injected into the human bodies to their destination, and assessing their behavioral patterns. This can be done using fluorescent markers, which are then observed with specialized equipment, designed specifically to track a certain type of marker. Now, experts at the Purdue University have developed a new way to do this, by creating nanostars that spin when subjected to a rotating magnetic field. When they do this, they scatter the light shone on them, creating a pulsating effect, a twinkle. This type of signals can be very easily detected from the myriad of others that exist in the average human cell, where the level of activity is unbelievable. Being able to identify the exact marker you're looking for has proven to be relatively difficult with previous methods, and that's why the new structures hold so much promise for the field. Details of the National Institutes of Health-funded work can be found in the lat!
est issue of the Journal of the American Chemical Society. “This is a very different approach to enhancing contrast in optical imaging. Brighter isn't necessarily better for imaging; the real issue is background noise, and you can't always overcome this simply by creating brighter particles. With gyromagnetic imaging we can zero ...
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http://news.softpedia.com/news/Magnetic-Fields-Make-Nanostars-039-Twinkle-039-117281.shtml