โ Scribed by Ryohei Nagata; Susan Anne Clark; Kenji Yokoyama; Eiichi Tamiya; Isao Karube
No coin nor oath required. For personal study only.
A glucose sensor was fabricated using the screen printing technique with a special ink component containing ferrocene-bound glucose oxidase (fc-GOD). Glucose oxidase was modified with ferrocene derivatives as the electron-transfer mediator in order to obtain higher GOD activity. The ferrocene-modified GOD showed an increase in catalytic current. A special ink component compatible with the printing process was prepared with fc-GOD, soluble and insoluble polymer resins and organic solvent. Using the conventional screen printing technique, the ink component was printed on a thin gold film electrode on a plastic film. The output of the printed glucose sensor was observed to be stable for several hours and proportional to the glucose concentration from 0.5 to 2.0 mg ml-'.
๐ SIMILAR VOLUMES
Amperometric membrane glucose and lactate biosensors are investigated. 'Sandwich'-type membranes are used with an enzyme (glucose oxidase or lactate oxidase) immobilized between two membrane layers. A new type of catalytic electrode made from pyrolysed CoTMPP (cobalt-tetramethoxyphenylporphyrin) is
A ruthenium-dispersed carbon ink is used for the fabrication of screen-printed enzyme electrodes. The dispersed ruthenium particles offer an efficient electrocatalytic action towards the detection of enzymatically-liberated peroxide and dihydronicotinamide adenine dinucleotide (NADH) . Highly select