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Reference type: Journal
Authors: Dabrowski M, Cieplak M, Noworyta K, Heim M, Adamkiewicz W, Kuhn A, Sharma PS, Kutner W
Article Title: Surface enhancement of a molecularly imprinted polymer film using sacrificial silica beads for increasing l-arabitol chemosensor sensitivity and detectability.
Publication date: 2017
Journal: Journal of Materials Chemistry B
Volume: 5
Issue: (31)
Page numbers: 6292-6299.
DOI: 10.1039/C7TB01407D
Alternative URL: https://www.researchgate.net/publication/318426637_Surface_enhancement_of_a_molecularly_imprinted_polymer_film_using_sacrificial_silica_beads_for_increasing_L-arabitol_chemosensor_sensitivity_and_detectability

Abstract: Molecular imprinting in polymers leads, among others, to synthetic receptors of high selectivity, comparable to that of their biological counterparts. Deposition of a thin non-porous molecularly imprinted polymer (MIP) film directly on a transducer surface enables fabrication of chemosensors for various health relevant biocompounds. However, the sensitivity of a chemosensor with such an MIP film as the recognition unit is limited, mostly because of slow analyte diffusion through this film. Herein, a simple procedure was developed to enhance, in a controlled way, the active surface area of an l-arabitol imprinted polymer film. For this, a macroporous MIP-(l-arabitol) film was synthesized and simultaneously deposited on a gold electrode of a quartz crystal resonator transducer by potentiodynamic electropolymerization. This large surface area film effectively enhanced analytical signals of mass changes at a quartz crystal microbalance. Hence, the l-arabitol limit of quantification was ~16-fold better than that of the corresponding non-porous MIP film of the same mass
Template and target information: l-arabitol, monosaccharide


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