Spherical Gold Nanodroplets produced
14 January 2012Researchers now have developed a technique through which the perfect spherical gold nanodroplets were produced. The details of the research has appeared in recent issue of Advanced Materials where the team of International researchers claim that the nanodroplets that produced through nanojets can find major applications in medicine.
Researchers used the backjet phenomenon and using a plasmonic hotspots or the region where electric current is used for heating gold nanostrutctures locally converts the gold nanostructures to the desired nanojets. The tightly focused laser pulses acts as heat source and these are sufficient enough to provide energy to melt the surface of gold and once the gold is melt, nanojet of molten gold appears upwards.
There was an anticipation from the scientists working on the project that the gold nanojet that will formed will not be significantly smaller than the wavelength of light, however the researchers found opposite and the nanojet can be made significantly smaller than the wave length of light with the help of the plasmonic hotspots. Dr. Ventsislay Valey of KU Leuven and other researchers believe that the gold nanodroplets as synthesized will have multiple applications in medical field.
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