Scientists use the zone of inhibition test to study antibiotic resistance of bacteria. The wafers on the culture medium contain an antibiotic that inhibits growth of sensitive bacteria in their ...

SINCE Cooper and Woodman1 proposed on theoretical grounds that the formula should explain the size of inhibition zones, under specified experimental conditions, evidence on the validity of this ...

Measure the diameter of the zone of inhibition and divide it by 2 to calculate the radius, (r), eg 10 / 2 = 5 mm Use the equation: πr 2 For example: 3.14 × 5 2 = 3.14 × 25 = 78.5 mm 2 ...