| abstract |
A conjugate comprising a bio-directing carrier, a metal coordinating moiety, and a linker chemically linking the metal coordinating moiety to the carrier, the metal coordinating moiety comprising at least one optionally substituted 4,6-dihydroxypyrimidyl, 4,6-dithiolpyrimidyl, 4-thiol-6-hydroxypyrimidyl, 4-hydroxy-6-thiolpyrimidyl, 3,5-dihyroxypyridyl, 2,4-dihydroxypyridyl, 3,5-dithiolpyridyl, 2,4-dithiolpyridyl, 3-hydroxy-5-thiolpyridyl, 2-hydroxy-4-thiolpyridyl, 3-thiol-5-hydroxypyridyl, 2-thiol-4-hydroxypyridyl, 1,3-dithiolphenyl, 1-hydroxy-3-thiolphenyl or 1-thiol-3-hydroxyphenyl moiety, or a combination thereof. |