Use of [99mTc]Technetium-Labeled Steroids as Probes for Steroid Hormone Receptors

Nature has made extensive use of metals in biological systems. Metals perform a wide variety of essential biological functions, such as oxygen and electron transfer, the development of structural framework, and they represent the reactive centers in catalytic proteins. The investigation of the biological role of metals and their coordination chemistry in a biosystem is the subject of bioinorganic chemistry (1 ,1 )