The effect of γ-sterilization on the pH-ChemFET behaviour

One of the key requirements biomedical and pharmaceutical sensors have to satisfy is their ability to withstand sterilization cycle. In this paper, the influence of γ-sterilization on the electrical and electrochemical characterizations of pH-sensitive chemical field effect transistors (pH-ChemFET) is examined before and after γ-irradiation. It is shown that γ-irradiation is suitable for pH-ChemFETs sterilization in the field of in-vitro analysis and more precisely for single-use bioreactors.