A Molecularly Imprinted Polymer Based SPR Sensor for 2-Furaldehyde Determination in Oil Matrices

Publications - ISI Article

A Molecularly Imprinted Polymer Based SPR Sensor for 2-Furaldehyde Determination in Oil Matrices

Description

Publications - ISI Article

A Molecularly Imprinted Polymer Based SPR Sensor for 2-Furaldehyde Determination in Oil Matrices

Optical chemosensors with surface plasmon resonance (SPR) transduction are widely used, even in complex environments such as those outside the laboratory.

In this context, both the chemical nature and the physical form of the receptor layer are particularly relevant. Synthetic receptors such as molecularly imprinted polymers (MIPs) are suitable. This is demonstrated here with a sensor platform based on a multimodal plastic optical fiber, which is very promising for on-site applications due to its small size and low cost. An MIP with high affinity for the target substance, 2-furaldehyde in water, was used as the receptor. A high-refractive-index medium, namely vegetable oil, was considered due to its high relevance for industrial diagnostics. The effects of the MIP layer thickness and washing duration on the quality of the analytical signal were studied. Better spectra were generated with a thinner MIP layer, while a lower detection limit was achieved with prolonged washing.

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