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. 2022 Jul 25;10(8):1180. doi: 10.3390/vaccines10081180

Figure 2.

Figure 2

The integrated intensity profile of S. agalactiae protein-lysate-loaded HNTs while exposing them to acid–base solutions at pH 2, pH 6 and pH 8 for 7 h. H, HA, HC and HAC indicate the protein releasing profiles of HNT, HNT-APTES, HNT-Chitosan and HNT-APTES-Chitosan, respectively. Notably, the releasing profile of Strep proteins in pH 2 of all Strep-loaded HNT formulations, including H-pH 6, H-pH 8 and HA-pH8, were non-detectable (n.d.). Statistical analysis was performed via a paired two-sample t-test for an analysis of means with p < 0.05. “*” indicates that the HA-pH6, HC-pH6 and HAC-pH6 were significantly different from H-pH6 and that HC-pH8 and HAC-pH8 were significantly different from H-pH8.