10 Questions
What is the principle of an amperometric biosensor?
Measures the electric current resulting from the movement of electrons generated from the redox reaction between the electrodes
What is the role of ferrocyanide in amperometric biosensors?
Facilitates electron transfer between the redox-active mediator and the target analyte
Which type of electrochemical sensor commonly uses ferrocyanide as a mediator?
Amperometric sensor
What is the signal usually measured in a glucose biosensor?
Current (Ampere)
What does glucose oxidase (GOx) catalyze in a glucose biosensor?
Oxidation of glucose to gluconolactone + H2O2 in the presence of O2
What does the electric current measured in amperometric biosensors result from?
The movement of electrons generated from the redox reaction between the electrodes
In an amperometric biosensor, the generated current is proportional to:
The analyte concentration
What is the role of ferrocyanide in amperometric biosensors?
To facilitate electron transfer between the redox-active mediator and the target analyte
What does glucose oxidase (GOx) catalyze in a glucose biosensor?
The oxidation of glucose to gluconolactone + H2O2 in the presence of O2
What signal is usually measured in a glucose biosensor?
A current (Ampere) against concentration of glucose caused by a redox reaction of a mediator or H2O2 at the working electrode
Test your knowledge of amperometric biosensors principle and the role of ferrocyanide in electrochemical sensors. Learn about measuring electric current, redox reactions, and analyte concentration in biosensors.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
