Will QDs make way for 'CU dots'?

摘要

By surrounding fluorescent dyes with a protective silica shell, Cornell University researchers have created fluorescent nano particles, with possible applications in displays, biological imaging, optical computing, sensors and microarrays such as DNA chips. These are all applications for which quantum dots have been used or are being considered. But the Cornell nanoparticles offer an appealing alternative because of their greater chemical inertness and reduced cost. "People have done superb experiments with quantum dots that were not previously possible," says Ulrich Wiesner, Cornell associate professor of materials science and engineering.