Imaging with gold nanorods

摘要

Because visible light does not penetrate tissues well,researchers have been attempting to develop imaging agents that can be excited by light at other regions of the spectrum,such as near-IR.One group,led by Alexander Wei and Ji-Xin Cheng at Purdue University,has developed gold nanorods that can be imaged in vivo by two-photon luminescence (TPL) microscopy.The nanorods are excited in the near-IR region;this makes them well suited for imaging tissues.