New purifying methods for gold nanorods developed
24 September 2008Researchers at Rice University have developed a new technique through which ultra pure gold nanorods can be prepared. These gold nanorods can find applications in many areas including medical diagnosis and electronic.
All the synthetic techniques used for fabricating gold nanorods produces only around 20% high aspect ratio products and these techniques also produces gold nanoparticles of other shapes including sphere and platelets.
Researchers Eugene Zubarev, assistant professor of chemistry at Rice University and graduate student Bishnu Khanal developed new purification method, through which more than 99% of pure gold nanorods can be obtained.
The shape of nanomaterial plays a crucial role for its use for a specific application as the shape and size determines the physico-chemical properties of the material. Researchers studied the nanorods, which are 25 nanometer in diameter and about 200 nanometer long. Due to their shape, nanorods behaves differently in magnetic and electric field and therefore needs to be purified for various applications.
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