Journal of Materials Chemistry B · 2014 · 42 citations · 34 references
EngineeringBiotechnologyChemical EngineeringBiosensorsElectrochemistryEnzyme TechnologyBioelectrochemical SystemsCell-based BiosensorsElectrochemical BiosensorsElectrode MaterialsEnzyme-based BiosensorsMicroscale BiosensorsBiosensingDirect Electron TransferElectrochemical BiosensingElectron TransferGlucose OxidaseMicroelectrode MaterialsOxidase-based BiosensorsPolyaniline
in PBS solution (0.1 M, pH = 5.5) on the PANI microtubes instead of a bare glass carbon electrode (GCE). The amperometric response of the GOx/PANI microtube modified electrode was linearly proportional to the concentration of glucose in the range of 4.0 μM to 0.80 mM. The glucose detection limit was 0.8 μM at a signal-to-noise ratio of 3, which was better than those reported for the GOx/PANI film (1 mM) and GOx/PANI nanowire (50 μM). The advantages might be attributed to the PANI microtubes' large geometric surface for carrying enzyme (GOx) and efficient electrocatalytic activity to facilitate the direct electron transfer of GOx, as well as an efficient GOx biocatalyst reaction on the microtube surface. A promising application of PANI microtube-based biosensors was offered.
34
Highly Sensitive Glucose Sensor Based on Pt Nanoparticle/Polyaniline Hydrogel Heterostructures
Dongyuan Zhai, Borui Liu, Yi Shi et al. · ACS Nano · 2013 · 810 citations