Smectite interactions with flavomononucleotide.
Adsorption isotherms and UV-visible and Mossbauer spectroscopic data point to specific interactions between flavomononucleotide (FMN) and Fe(3+)-smectite. The maximum amount of FMN adsorption was 0.3 mmole/g of Fe(3+)-smectite giving a 1:1 molar proportion of Fe3+ and FMN. The results suggest a Fe(3+)-FMN complex residing at the smectite surface. Other homoionic smectites (Cu2+, Zn2+, and Ca2+) exhibited lower levels of adsorption and less apparent specific interaction.
Adsorption↗