Issue Date: May 18, 2009
Silicon Nanowires Light Up For Imaging
Silicon nanowires can serve as intense in vitro and in vivo imaging probes, according to researchers at Purdue University (Nano Lett., DOI: 10.1021/nl901143p). Fluorescent compounds have long been used for biological imaging, but their optical response often weakens quickly when illuminated because of photobleaching. Nanoparticles, nanorods, and other nanoscale materials can partly sidestep the photobleaching problem, although in some cases most of . . .
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