**2.1.1 Transporters**

Various types of transporters are used, formulated such as to assure a maximum localization of the radiopharmaceutical in the zone of interest while exposing the neibouring area to minimum detriment (Kornyei.2008, Mikolajczak. 2008). The types of transporters are generally similar for both of nuclear medicine procedures, diagnosis and therapy; some formulations are presented as follows:

	- i. Monoclonal antibodies (mAb): 90Y-anti-CD20; 188Re-anti-VEGF
	- ii. Meta Iodo Benzil Guanidine (MIBG)-131I
	- iii. Peptide Receptor Radionuclide, somatostatin analogous: Pentetroid-DTPA-111In, TOC-HYNIC-99mTc. 188Re-DOTA-Lan and 188Re-Lan.

The detailed description of these compounds is outside the scope of the chapter.
