Zeta potential (mV) of DEP and DEP-Env from Batches # 1-3.

<p>The zeta potential of DEP and DEP-Env from batch # 1, 2 and 3 was measured as described in METHODS. Mean particle zeta potential (mV) ± standard errors from 12 replicates for each sample are listed above.</p><p>Batch #2 * <i>p</i><0.002 relative to DEP-0. Batch #3 ** <i>p</i><0.0001 relative to DEP-0 (2-tailed unpaired t-test with 95% confidence level).