Table 1. The hemolysis rate of LNPS@siBcl-2 in different PBS buffer.

pH	Hemolysis rate of LNPS@siBcl-2 (%)
	25 (μg/mL)	50 (μg/mL)	100 (μg/mL)
7.4	0.10 ± 0.05	1 ± 0.5	2 ± 1
5.0	10 ± 2**	67 ± 6**	99 ± 10**

**p < 0.01, vs pH 7.4 at the same concentration.