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Abstract
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With the increasing need for the manufacture of sensors that have the ability to sense and measure at the lowest concentration, electrochemistry has recently been used to manufacture electrochemical sensors using advanced techniques. Carbon nanofiber has recently displayed a high attraction level due to its unique features. CNF-based electrodes have a wide potential window. Also, they are cheap and chemically inert in the electrolyte solution. Most of the studies demonstrated that CNF significantly strengthens the electron transfer rate and increases the active surface of electrodes which is helpful in the electrocatalytic processes. Other features of CNF include unique physical and chemical stability, good electrical conductivity, high surface area, biocompatibility, inherent and induced chemical functionalities, and ease of fabrication [1]. Nanocomposites are important in many fields of science. One of main the compounds that have been used in nanocomposites is gold. Because of the unique properties of gold nanoparticles (AuNPs), it has obtained a lot of applications in electronics, biology, chemistry, and physics sciences. Beyond the positive features of AuNPs, due to the high price, the application of AuNPs is limited. The use of AuNPs can be expanded by using Au-based nanocomposites. Recently, Au-based nanocomposites have been utilized in electrochemical sensors due to their unique surface-to-volume ratio, excellent electrical conductivity, high dispersity, non-cytotoxicity, and high chemical stability [2]. Prussian blue (PB) is used widely in various sciences due to its valuable properties including stability, flexible molecular structure, porosity, and low density. PB was utilized in many of industry such as in electrochromic displays, electrocatalysts, secondary batteries, ion and biosensors, photomagnets, and hydrogen storage [3].
By considering unique properties of CNF, AuNPs, and PB, in this work, a novel nanocomposite based on these materials will be dev
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