USE OF ZNO NANOCRYSTALS FOR IMAGING AND THERAPY

摘要

The present invention provides a method for imaging a biological specimen using non-linear optical properties of certain materials. The method comprises the steps of providing an aqueous dispersion of ZnO nanocrystals; contacting a biological specimen with an aqueous dispersion comprising ZnO nanocrystals; exposing the biological specimen to input electromagnetic radiation having a wavelength of from 600 to 1500 nm; recording the nonlinear output electromagnetic radiation; and generating an image of the biological specimen based on the nonlinear output radiation.