Urchinlike MnO2 nanoparticles for the direct electrochemistry of hemoglobin with carbon ionic liquid electrode

TiO2 nanoparticle modified organ-like Ti3C2 MXene nanocomposite encapsulating hemoglobin for a mediator-free biosensor with excellent performances

“…3), suggesting an enhanced electron transfer between Hb molecules and the surface of the Nafion/Hb/TiO 2 -Ti 3 C 2 /GCE. Meanwhile, the much smaller redox peaks of Nafion/Hb/GCE can be attributed to the denaturation of proteins on the bare electrode surface and the difficulty for proteins realizing the DET process on the bare electrode (Dong et al, 2011;Zhu et al, 2011). It can be clearly seen from the comparison that direct electron transfer between Hb molecules and GCE is greatly enhanced at the Nafion/Hb/TiO 2 -Ti 3 C 2 /GCE.…”

Direct electrochemistry and electrocatalysis of hemoglobin on three-dimensional graphene modified carbon ionic liquid electrode

“…Among the redox proteins that used in protein electrochemistry, hemoglobin (Hb) is commonly selected as the ideal model for its well-documented structure and commercial availability with moderate cost. Direct electrochemistry of Hb has been realized with various mediators, promoters or nanomaterials [11][12][13][14][15][16].…”

An amperometric glucose biosensor based on a MnO2/graphene composite modified electrode

“…Besides, has also been widely used in biosensors. [25][26][27][28] However, the application of MnO 2 was restricted by its poor electrical conductivity.…”