Free-standing arrays of BaTiO₃ nanotubes for non-enzymatic glucose sensing & hydrophobic coating applications

Abstract

BaTiO3 nanostructures have been considered as a potential candidate in recent past for energy and biomedical sector owing to their excellent physiochemical properties such as high dielectric constant, excellent piezoelectric property, good biocompatibility, non-linear optical characteristics etc. Present study reveals on free-standing arrays of BaTiO3 nanostructures were fabricated by hydrothermal conversion of anodic TiO2 nanotubes. Morphological and structural information of the BaTiO3 nanotubes were done using FESEM and XRD studies. FESEM analysis revealed that the fabricated samples were having tubular morphology of average length and pore diameter of 4.63 µm and 290 nm respectively. Cubical perovskite crystalline phase of BaTiO3 was confirmed through XRD analysis. The BaTiO3 nanotube samples had shown a higher sensitivity of 44.43 µA mM-1 cm-2 and a faster response of 0.1 s for glucose detection. The fabricated BaTiO3 nanotubes film also had shown a higher contact angle of 122.700. Therefore, our presently fabrication on Titanium foil study emphasize on arrays of BaTiO3 nanotubes will open up a new window in development of various types of sensing and hydrophobic coating applications.