Study of gaseous compounds adsorption with a Love wave sensor based on molecularly imprinted polymer thin film

Abstract : This work exhibits a Love wave sensor combined with molecularly imprinted polymer (MIP). The final aim is for specific detection of colon cancer biomarkers. This paper deals with the validation of a MIP thin film's coating process, allowing high sensitivity of the resulting microsensor. After a brief description of the acoustic sensor and of the MIP coating process, the functionality of the resulting device is proved with electrical characterization. Deep characterization of the thin film - morphology and print effect - is proposed, based on dynamical responses observed under exposure to different vapors. Experimental results point out a good reproducibility of polymeric films. MIP layers increased responses of sensors to vapors by a factor 3 to 4 compared to bare devices or to devices coated with non-imprinted polymer (NIP). For example, exposure to 4000 mg/m3 (2126 ppm) of ethanol in nitrogen induced a frequency shift of -1.4/-0.4 kHz with MIP/NIP-coated sensor, respectively.
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https://hal.archives-ouvertes.fr/hal-00817577
Contributor : Corinne Dejous <>
Submitted on : Wednesday, April 24, 2013 - 8:18:32 PM
Last modification on : Thursday, February 7, 2019 - 12:10:02 PM

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  • HAL Id : hal-00817577, version 1

Citation

Nima Omar-Aouled, Naïma Lebal, Hamida Hallil, Raphael Delepee, Luigi A. Agrofoglio, et al.. Study of gaseous compounds adsorption with a Love wave sensor based on molecularly imprinted polymer thin film. Sensors & Transducers Journal, International Frequency Sensor Association (IFSA), 2013, 149 (2), pp.37-42. ⟨hal-00817577⟩

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