Table 2.

Viability of spores and growing cells after incubation on bSi and control wafers.

Spores and growing cells tested	Spore/cell viability - %1
Spores/cells incubated on:	control wafers	bSi wafers
B. subtilis wild-type spores	97 ± 1.5	91 ± 1
B. subtilis coatless spores	97 ± 2.5	91 ± 1.5
B. cereus spores	94 ± 2	91 ± 1
B. subtilis wild-type cells	95 ± 2.5	1 ± 0.6

Spores or growing cells were prepared and either untreated or incubated on control or bSi wafers for 48 hr (spores) or 3 hr (growing cells), spores and cells harvested, and viability of untreated and recovered cells and spores determined, all as described in Methods.

¹Values are relative to values for the untreated starting spores that were set at 100%, and all values are shown +/− standard deviations from duplicate determinations in three independent experiments.