Bienzymatic glucose biosensor based on direct electrochemistry of cytochrome c on gold nanoparticles/polyaniline nanospheres composite

Avidin and Glucose Oxidase‐non‐covalently Functionalized Multi‐walled Carbon Nanotubes: A New Analytical Tool for Building a Bienzymatic Glucose Biosensor

“…Xiang et al. proposed a micromolar bienzymatic detection of glucose through the direct electron transfer of cytochrome c (cyt c) on gold nanoparticles/poly(aniline) nanospheres composite. Eguílaz et al.…”

“…Rama et al [23] designed a portable amperometric glucose biosensor using carbon-ink coated stainless-steel pins modified with GOx and HRP and ferrocyanide as electron transfer mediator. Xiang et al [24] proposed a micromolar bienzymatic detection of glucose through the direct electron transfer of cytochrome c (cyt c) on gold nanoparticles/poly(aniline) nanospheres composite. Eguílaz et al [25] described a glucose biosensor prepared by modification of GCE with MWCNTs dispersed in cyt c and casted with GOx using hydroquinone as redox mediator.…”

An ultrasensitive performance enhanced novel cytochrome c biosensor for the detection of rebaudioside A

“…Literature reports revealed that Cyt c can also be immobilized onto the electrode surface via graphene (Wu et al, 2010), AuNPs (Jensen et al, 2007), carbon nanotubes (Zhao et al, 2005) through electrostatic adsorption. This will overcome the slow electron-transfer kinetics for the determination of inorganic (Fuku et al, 2012) and organic (Xiang et al, 2013;Shervedani and Foroushani, 2014) compounds.…”

Oxidation and sensing of ascorbic acid and dopamine on self-assembled gold nanoparticles incorporated within polyaniline film

“…Hung [22] demonstrated that a strong interaction between AuNPs and polyaniline nanofibers may accelerate the redox reactions for both PAN and AuNPs, and enhance the anodic oxidation of H 2 O 2 , leading to a fast response time (less than 3 s) and a high sensitivity (8.34 mAM −1 ) for H 2 O 2 sensing. Xiang et al [23] further immobilized cytochrome C on AuNP/PAN nanosphere composite electrodes by a noncovalent strategy. The modified electrode gave an improved electrocatalytic activity toward the reduction of hydrogen peroxide.…”