Nanowire Modified Electrode for Sensitive Measurement of Nicotinic Acid

A simple and sensitive method has been developed to measure nicotinic acid using CuGeO 3 nanowire modified glassy carbon electrode (GCE). The CuGeO 3 nanowires can be attached firmly to the surface of the GCE. The modified GCE exhibits good detection performance for nicotinic acid with the correlation coefficient of 0.993 and 0.985 for cvp1 and cvp2, respectively. The detection limit is 9.2 μM and 0.83 μM, respectively at a signal-to-noise ratio of 3 with the linear range of 0.001–2 mM. The CuGeO 3 nanowire modified GCE exhibits good stability and reproducibility.

One-dimensional nanostructures of ferroelectric perovskites

Nanorods, nanowires, and nanotubes of ferroelectric perovskites have recently been studied with increasing intensity due to their potential use in non-volatile ferroelectric random access memory, nano-electromechanical systems, energy-harvesting devices, advanced sensors, and in photocatalysis. This Review summarizes the current status of these 1D nanostructures and gives a critical overview of synthesis routes with emphasis on chemical methods. The ferroelectric and piezoelectric properties of the 1D nanostructures are discussed and possible applications are highlighted. Finally, prospects for future research within this field are outlined.