Real time assessment of surface interactions with a titanium passivation layer by surface plasmon resonance.

We report for the first time on our development of a titanium passivation layer sensor that makes use of surface plasmon resonance. The deposited titanium metal layer on the sensor was passivated in air, like titanium medical devices. This sensor analyses not only biomolecules interactions but also corrosion of titanium passivation layer exposed to acid in real time and will therefore be very useful to study titanium-corrosion phenomena and biomolecular titanium-surface interactions with application in a broad range of industrial and biomedical fields.