Sensitive detection of potassium ion using Prussian blue nanotube sensor

Magnetism and Photomagnetism of Prussian Blue Analogue Nanoparticles Embedded in Porous Metal Oxide Ordered Nanostructures

“…In the case of the alumina membranes the shape of the polycrystalline nanotubes formed through a layer-by-layer approach [54,55] is comparable to that of the nanotubes formed through an electrochemical method. [65,66] Within the hexagonal porosity of ordered mesoporous SBA-15 and MCM-41 silica powders PBAs are in the shape of nanoparticles grafted to the silica walls, their size depending on the diameters of the pores: 2-3 nm for MCM-41 [57] silica and 5-7 nm for SBA-15 silica. [56,57] In the case of the nanoperforated titania film, PBA fills the nanoperforations with 80 nm in diameter and 15 nm in height.…”

“…This approach has been applied to alumina [46,[49][50][51][52][53]65,66] and silica [60] membranes. The working electrode (the porous oxide template) and counter electrode are immersed in a solution containing unreactive PBA precursors, most often hexacyanometallate(III) and hexaaquametal(III) complexes: in this way, the two PBA precursors can diffuse within the porosity without uncontrolled precipitation.…”

“…By the same approach, porous metal-coated membranes were used to form PB nanotubes. [65,66] Because the electrochemical growth of the PBA within the pores starts from a narrow ring of metal coating at the VFe [51] FeCr [52] FeCrCr [53] Al 2 O 3 membrane FeFe tube (50-300 nm × 4 μm) Al 2 O 3 [65,66] CoFe SiO 2 film, pores perpendicular to the surface FeFe low amount SiO 2 [60] pores' edges, only PBA tubes covering the pores' walls are produced. The lengths and diameters of the nanotubes are comparable with those of the nanowires.…”

Electrocatalytic analysis of superoxide anion radical using nitrogen-doped graphene supported Prussian Blue as a biomimetic superoxide dismutase

“…With the presence of multi-valence iron, PB is able to offer two pairs of redox responses in a relatively wide potential window [28][29][30]. Thus, the participation of iron ions in the redox reactions of PB endows its wide applications in the field of electroanalysis [31][32][33][34][35][36][37][38][39]. Hypothetically, similar to the case that iron-containing SOD (Fe-SOD) can bio-catalyze both the oxidation of the zymolyte to oxygen and the reduction to hydrogen peroxide, the Fe(Ⅲ)/Fe(Ⅱ) redox system available in PB is also supposed capable of grabbing/supplying electrons from/to O2 •-.…”

A Rapid Low Power Ultra-Violet Light-Assisted Bacterial Sensor for Coliform Determination

“…Ultrathin PB film is employed in this work because it can significantly improve the signal response and improve the sensitivity owing to the fast mass transfer of analytes [13,14]. In this study, the sensing of bacteria is carried out without the labeling of antibody as well as with small volume which significantly simplifies the procedures for operation.…”