.jpg "Rebeca Ruiz, PhD photo")
Principal Scientist
Pion Inc. (UK) Ltd, United Kingdom
Dr Rebeca Ruiz is the Principal Scientist at Pion Inc., where leads the design and execution of research experiments on physicochemical properties of drugs and formulations, such as solubility, pKa, lipophilicity, dissolution, permeability, and absorption.
Rebeca obtained the European Ph.D. in Analytical Chemistry from the University of Barcelona in Spain. Her thesis, and Master's were focused mainly on pKa (ionisation constant) analysis, studying and evaluating a diversity of techniques (potentiometric and spectrophotometric), instrumentation (HPLC, CE, Spectrometers and Potentiometers), several media and different calculation approaches for the determination of this property. Lipophilicity (logP/D) and solubility also formed part of her doctorate and Rebeca publishes her work in internationally recognised scientific journals. Her expertise in physiochemical properties has been expanded over the years increasing her knowledge in dissolution, permeability, absorption, and the study of the effect by different families of excipients on the physicochemical properties including its role in formulations.