Patent ID: 8691500
Filing Date: 2014-04-08
Classification: G01N

Abstract:
1. A method for detecting a biomolecule comprising: immobilizing a nucleic acid aptamer on the surface of a bead on which quantum dots are arranged that is capable of specifically binding to a protein to be detected; hybridizing the nucleic acid aptamer with a guard nucleic acid (g-nucleic acid) labeled with a quencher to quench fluorescence; and reacting a sample including the protein to be detected with the nucleic acid aptamer and detecting a fluorescence signal emitted as the protein binds with the nucleic acid aptamer and the g-nucleic acid labeled with the quencher is separated; wherein the bead is a magnetic bead comprising: a magnetic core; porous beads surrounding the core; and quantum dots arranged on the surface of the porous beads.