원문정보
초록
영어
Gold nanoparticles (GNPs) have unique properties which are surface plasmon resonance that make functional reagents for various biomedical applications including photothermal therapy. Most GNPs are prepared using growth-directing surfactants, such as cetyltrimethylammonium bromide (CTAB), which are known to have considerable cytotoxicity. We describe an approach to remove CTAB to a non-toxic concentration by PEGylaiton or antibody conjugation. The cytotoxicity of pristine and surface-modified GNRs was measured in human cell lines derived from thyroid cells. GNRs are further modified to present monoclonal antibodies that recognize a specific surface marker, sodium-iodide transporter (NIS), for thyroid cells. NIS antibody-conjugated GNRs specifically targeted human thyroid cells in vitro. Antibody-conjugated GNRs specifically targeted human thyroid cells in vitro.