“Similar blue shifts and fluorescence shape with larger quenching extent of BSA were observed with increasing concentrations of omeprazole or pantoprazole in the presence of Cu(II) or Fe(III).”
“The presence of Cu(II) and Fe(III) increased the affinities of … BSA about 12.0% and 3.9%, while the presence of Cu(II) decreased the … of pantoprazole with BSA about 25.7%, and the presence of Fe(…) improved the affinity of pantoprazole with BSA about 16.3%.”