Biosensors Flashcards
1
Q
What enzymes do clinistrips contain?
A
Glucose oxidase
Perioxidase
2
Q
What does glucose oxidase do?
A
Breaks down glucose into gluconic acid and hydrogen peroxide
3
Q
What does perioxidase do?
A
Breaks down hydrogen peroxide into oxygen and water
4
Q
What is the role of oxygen in a clinistrip?
A
Oxidises a colour dye on the test pad
5
Q
What do glucometers contain?
A
Glucose dehydrogenase
6
Q
What does glucose dehydrogenase do?
A
Converts blood glucose into gluconolactone
This produces a current
7
Q
What do urine test strips contain?
A
pH indicator
Buffer
8
Q
What is a common pH indicator used in urine test strips?
A
Tetrabromophenol blue
9
Q
What colour changes take place in a urine test strip (in relation to protein concentration)?
A
Yellow (no protein)
Green
Dark blue (high protein concentration)
