Biological analysis and imaging applications of CdSe/CdSxSe1 − x/CdS core-shell magic-sized quantum dot

CdSe/CdSxSe1 − x/CdS core-shell magic-sized quantum dot (CS-MSQD) presents a broad bandwidth emission from 450 to 750 nm, low toxicity, non-immunogenicity and biocompatibility. The CS-MSQD was conjugated to a breast cancer-specific Fab antibody, and passively diffused into cells for in vitro detection of a breast cancer cell line, demonstrating to be an unprecedented tool for biomedical applications.227