. 2017 Apr 25;2(4):1633–1644. doi: 10.1021/acsomega.7b00181

Table 3. Quantitative Values of Zone of Inhibition for B. subtilis Treatment with P(Leu-HEMA)₁₅^a.

polymer	volume (μL)	radius of zone of inhibition (R₁) (cm)	area of zone of inhibition (cm²)
P(Leu-HEMA)₁₅	50	0.0	0.0
	100	0.4	0.4
	200	0.6	1.0

Zone of inhibition = π(R₁² – r²), r = radius of sterilized filter paper (disk) = 0.2 cm, area πr² = π(0.2)² = 0.13 cm².

Table 3. Quantitative Values of Zone of Inhibition for B. subtilis Treatment with P(Leu-HEMA)15a.