Microscopic mechanism of the laser induced fluorescence from the biomolecules coupled on the surface of the core/shell quantum dots

The red-shift fluorescent is often observed from the biomolecules covalently coupled with the core/shell quantum dots, while blue shift fluorescent from the electrostatic adsorption coupling structures. These fluorescent effect characteristics are analyzed on the basis of the quantum theory of condensed matter, and are demonstrated to be mainly related with the elementary excitation.