A) Fluorescence microscopy images showing glucan formation by GtfB using Alexa 647 sucrose over 60 minutes for PBS (control), saturated farnesol-loaded NPC, NPC alone, and farnesol alone treatments. B) Quantification of relative intensity of glucans formed in (A) using ImageJ. Data shown as average and standard deviation from n=4 independent experiments. * p ≤ 0.05 PBS versus NPC + Sat Far, # p ≤ 0.0001 Far versus NPC + Sat Far, $ p ≤ 0.001 NPC versus NPC + Sat Far, ns = no significant difference from Two-way ANOVA with Tukey’s multiple comparisons test. C) GtfB activity for PBS, farnesol alone, NPC alone, and saturated farnesol-loaded NPC groups using a colormetric assay for insoluble glucans. Data shown as average and standard deviation from n=3 independent experiments. **** p < 0.0001 from One-way ANOVA with Dunnett’s multiple comparisons test. Abbreviations: Far, farnesol; NPC, nanoparticle carrier; Sat, saturated farnesol formulation.