Patent ID: 9642923
Date: 2017-05-09
CPC Classifications: A61B,A61K,B82Y,G01N,G01R

Claim:
1. A contrast agent comprising a plurality of engineered particles, wherein each engineered particle of the contrast agent comprises: a bioreceptor, wherein the bioreceptor selectively interacts with an analyte; at least one conductive nanorod, wherein the at least one conductive nanorod absorbs polarized electromagnetic radiation that is aligned with an axis of the at least one conductive nanorod more than polarized electromagnetic radiation that is not aligned with the axis of the at least one conductive nanorod, wherein the conductive nanorod transduces a portion of electromagnetic energy received by the at least one conductive nanorod into a surface plasmon resonance, wherein the surface plasmon resonance generates a time-varying electric field around the conductive nanorod; and at least one light emitter, wherein the at least one light emitter is located within the time-varying electric field that is generated around the conductive nanorod when the conductive nanorod transduces a portion of received electromagnetic energy into a surface plasmon resonance, and wherein the at least one light emitter transduces a time-varying electromagnetic field to which it is exposed into emitted light energy.