A performance comparison of choline biosensors: anodic or cathodic detections of H2O2 generated by enzyme immobilized on a conducting polymer

Biomolecular immobilization on conducting polymers for biosensing applications

“…CP serves as the immobilizing matrices for biomolecules and provides a suitable environment for their immobilization [27,[46][47][48][49][50][51][52]. The redox properties of these materials especially PPy, have been intensively studied in recent years, with much emphasis on their synthesis and characterization.…”

Amperometric Enzyme-based Biosensors for Lowering the Interferences

“…Among all methods, entrapment is considered to be one of the most attractive and popular methods to grasp the biomolecules. The electrochemical devices made by different conducting polymers entrapping recognized biomolecules have been reported extensively (Habermuller & Schuhmann, 1998;Rahman et al, 2004;Selampinar et al, 1997), because their major advantages (Cosnier, 1999) are that polymer film can be polymerized with immobilizing enzyme in one step, and the film thickness can be controlled easily by adjusting capacity. The most common polymers used as matrixes to entrap enzyme are polyaniline (Borole et al, 2004), polythiophene, polypyrrole and its derivatives (Trojanowicz et al, 1995).…”

The unmediated choline sensor based on layered double hydroxides in hydrogen peroxide detection mode

“…By contrast, the biosensor appears as a suitable alternative, ensuring attractive advantages such as its ease of use in turbid samples, portability, low cost, and sensitivity. In particular, ChOxbased electrochemical biosensors have been frequently used for the determination of choline, providing a simple, fast, and reliable proposed system [9][10][11][12][13][14][15][16][17] .…”