The Journal of Inorganic Biochemistry is dedicating its 160^th volume (July 2016) to the COST CM1105 action ‘Functional metal complexes that bind to biomolecules’. Within this issue you can find two contribitions of the Turel research group. The first contrubution is entitled ‘Interactions of two cytotoxic organoruthenium(II) complexes with G-quadruplex’ by our former team member Sara Seršen in collaboration with the research team of prof. Janez Plavec from the National institute of Chemistry, Ljubljana, Slovenia. The second paper, entitled ‘Cobalt(II) complexes with non-steroidal anti-inflammatory drugs and α-diimines’ continues our successful partnership with prof. George Psomas in the field of structural determination and biological evaluation of 3d transition metal complexes of clinical agents.