Immobilization of glucose oxidase on graphene and cobalt phthalocyanine composite and its application for the determination of glucose

Glucose biosensor based on glucose oxidase immobilized at gold nanoparticles decorated graphene-carbon nanotubes

“…Recently, carbon nanomaterials such as multiwalled carbon nanotubes (MWNTs) and graphene (GR) are proved as promising electrode materials for fabrication of electrochemical biosensors attributed to their large surface area, high conductivity, and good catalytic ability [8]. Designing GR based nanocomposites for the development of glucose biosensors is continuous research interest in our research group [3,6,8,[16][17][18]. Herein, we described a simple electrochemical approach for the preparation of gold nanoparticles (AuNPs) at pectin scaffold and GR-MWNTs (GR-MWNTs/AuNPs).…”

Rapid Immobilization of Cellulase onto Graphene Oxide with a Hydrophobic Spacer

“…Graphene oxide (GO), as an oxygenated of graphene, has gained increasing attention for its application in biotechnology because it contains oxygencontaining functional groups such as epoxide, hydroxyl, and carboxylic acids [17]. In addition, GO has some significant advantages, including easy processing, simple production from graphite, and available sites for functionalization [18]. Particularly, GO is afforded an ideal carrier for enzyme immobilization after functionalization, and it has been used as the carrier for immobilization of enzymes [2,[19][20][21][22].…”

Palladium nanoparticles deposited on graphene and its electrochemical performance for glucose sensing

“…The proposed biosensor was able to catalyze the reduction of dissolved oxygen, and glucose determination was achieved based on a decrease of peak currents due to the reduction of dissolved oxygen. Mani et al [16] have immobilized glucose oxidase onto graphene-cobaltphthalocyanine composite and used it for enzymatic determination of glucose. The amount of electroactive GOx ( ) and electron transfer rate constant were calculated to be 3.77 × 10 −10 mol cm −2 and 3.57 s −1 , respectively.…”