COMPOSITIONS AND METHODS FOR INTRACELLULAR ANALYTE ANALYSIS

摘要

Compositions and methods for multiplex immunodetection of analytes in single cells or cell populations are described. The invention utilizes analytical nanotags (ANTs) each specific for a different target analyte (TA) species. Analytical nanotags typically comprise biocompatible composite organic-inorganic nanoparticles (bCOINs) that include probe molecules specific for a particular TA species. A plurality of ANTs each specific for a different TA species can be used in a single multiplex assay, including assays for analyzing intracellular analytes in living cells.