In August 2008, I began working in my Master's degree thesis, which combines Mathematics, Physics, Biology and Chemistry concepts. Since that time, I found very interesting the idea of applying thermodynamic and kinetic theories to understand biochemical and physiological processes. These processes include, but are not limited to ion transport in the renal system, protein translocation in bacteria and coral calcification. The resulting models are efficient tools to study the function, regulation and pathophysiology of the studied system. They contribute to the better understanding of diseases that affect the organism and may lead to new or improved mechanisms of treatment. My approach in modeling biological systems consists in formulating, parameterizing (i.e., obtaining unknown parameters using numerical optimization techniques) and validating the mathematical models by emulating empirical (e.g., in vitro) and theoretical data.