“…Nano-structured materials including Au [16,17], Ag [4], Co [3], Ni x [18] Fe 3 O 4 , Fe 2 O 3 , ␣-FeO(OH) [19], SiO 2 [20] and CdTe [21,22] have been synthesised in aqueous solution. These methods provide water-dispersible NPs, a necessity for the application in biological systems; however, control over particle size distribution is still limited for many semiconductor and magnetic NP systems.…”