Patent ID: 8071360

Claim:
A semiconductor nanocrystal composition, comprising: a core comprising a first semiconductor material selected from the group consisting of a Group II-VI semiconductor and a Group III-V semiconductor; a core-overcoating shell comprising a second semiconductor material selected from the group consisting of MgS, MgSe, MgTe, CaS, CaSe, CaTe, SrS, SrSe, SrTe, BaS, BaSe, BaTe, ZnS, ZnSe, ZnTe, CdS, CdSe, CdTe, HgS, HgSe, and HgTe wherein the first and second semiconductor materials are different, and wherein the core and the core-overcoating shell form a core/shell nanocrystal; and an encapsulating net around the core/shell nanocrystal, wherein said encapsulating net comprises one or more linking agents capable of linking the nanocrystal to an affinity molecule.