Active and Particulate Interaction Mapping: Investigate the thermodynamic, electrostatic, and chemical interactions occurring between taurate/amino acid surfactants and critical dentifrice components, including polyvalent therapeutic cations (Sn2+, Zn2+), basic amino acids, fluoride sources, and inorganic abrasives (hydrated silica, calcium carbonate, calcium pyrophosphate). Primary responsibilities include mapping multi-component phase spaces, thermodynamic interactions, and transport kinetics among these surfactants, therapeutic active agents (stannous, zinc, basic amino acids, and bioavailable fluoride systems), complex flavor oil emulsions, and mineral abrasive dispersions.