Fig. 2From: Mesoporous silica nanoparticle-encapsulated Bifidobacterium attenuates brain Aβ burden and improves olfactory dysfunction of APP/PS1 mice by nasal deliveryEffects of MSNs on the growth of Bifidobacterium. Changes in bacterial growth of (a) Bifidobacterium and (b) Escherichia coli (E. coli) in the presence of different MSN concentrations. c Viability of encapsulated Bifidobacterium and E. coli during exposure to simulated intestinal fluid (SIF) with bile salts. d Release of Bifidobacterium and E. coli from MSNs encapsulation in SIF at 37 °C. Viability represents the percentage of bacteria surviving relative to the initial population. Data are presented as mean ± SD, n = 3Back to article page