Researchers in the US and Spain have developed a new way to assemble plasmonic nanoparticles using an optical technique that they have dubbed plasmon-enhanced thermophoresis. The technique, which relies on optically controlling a temperature field gradient, requires much less power than traditional methods such as optical tweezers. It could assemble nanoparticles into functional superstructures and devices and be used to dramatically improve light–matter interactions for applications in SERS, biosensing and smart drug delivery…..
http://nanotechweb.org/cws/article/tech/66369
