Direct Functionalization of TiO2/PSS Sensing Layer for an LMR-Based Optical Fiber Reusable Biosensor
Desiree Santano Rivero,
Abián B. Socorro-Leránoz,
Ignacio Del Villar
Abstract:Functionalization plays a crucial role in the development of biosensors. In this study, bioreceptors were directly immobilized onto the surface of a sensing layer after physical activation, avoiding the need for longer and more complex functionalization systems. This direct immobilization was applied to an optical sensing platform based on lossy mode resonances (LMRs) generated by a thin-film of titanium (IV) dioxide/poly(sodium 4-styrenesulfonate) (TiO2/PSS). To generate the LMR, a 200-micron bare optical fib… Show more
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