Table 2:

BCA protein assay results of various surfactant vesicle (SV) samples

Entry	Sample	Protein Concentration, μg/mL
1	Bare SVs mixed with acid phosphatase	Below LOD
2	Maleimide functionalized SVs mixed with acid phosphatase	Below LOD
3	Triton X-100 enriched SVs mixed with acid phosphatase	Below LOD
4	Esterified Triton X-100 enriched SVSs	Below LOD
5	Esterified Triton X-100 enriched SVs mixed with acid phosphatase*	31 ± 9
6	Bare SVs mixed with rhodamine-B labelled acid phosphatase	Below LOD
7	Bare SVs mixed with trimethyl ammonium labelled acid phosphatase	Below LOD

The limit of detection for the assay is 13 μg/mL. See supporting information for calculated protein concentrations for each vesicle formulation.

^*Also referred to as acid phosphatase functionalized SVs (AP SVs) in the text, figures, and subsequent tables.