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Poster RSE 16005737

Novel optical chemical sensor based on Molecularly Imprinted Polymer inside a trench micro-machined in double Plastic Optical Fiber

Poster

EUROSENSORS 2016 4-7 , Settembre-2016.

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L. Zeni (Seconda Università di Napoli), R. Bernini (CNR-IREA), M. Pesavento (Università di Pavia), N.Cennamo (Seconda Università di Napoli), L. De Maria (RSE SpA), G. Testa (CNR-IREA), S. Marchetti (Università di Pavia)

MON4-GRID 2016 - Management, monitoring and control of the transmission grid

The presentation concerns the development and application of innovative devices for monitoring power transformers. In particular, the problem of the formation of corrosive sulfur was analyzed and the possibility of monitoring, through new optical platforms, the presence of DBDS, one of the main chemical agents responsible for the formation of corrosive sulfur in power transformers.

For the detection of chemical agents in industrial environments, the combination of plastic optical fibers (POFs) and molecularly imprinted polymer (MIP) layers has been tested as a way to obtain a low cost, highly selective and sensitive surface plasmon resonance (SPR) chemical sensor [1]. A novel type of optical chemical sensor based on POF-MIP has been designed and fabricated, and in this work it has been applied for the selective detection of dibenzyl disulfide (DBDS) in transformer oil. This analyte is important in the control of transformer oil, since it is responsible for the corrosive properties of the oil. The new optical sensor platform is based on two plastic optical fibers coupled through a polymer molecularly imprinted for DBDS. The new sensor has been found to be useful for thedetermination of DBDS in transformer oil.

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