Skip to main content
. Author manuscript; available in PMC: 2018 Dec 13.
Published in final edited form as: RSC Adv. 2017 Dec 13;7(88):56123–56136. doi: 10.1039/c7ra08737c

Figure 6.

Figure 6

Membrane characterization in each step of layer-by-layer functionalization. (a) Top surface PVDF-PAA membrane; (b) Top surface PVDF-PAA-PAH-OmpF-PSS membrane; (c) Top surface PVDF-PAA-PAH-PSS membrane; (d) Top surface PVDF-PAA-PAH-FITC labelled OmpF-PSS membrane with green tag (FITC) for fluorescence-labeled OmpF and red tag for membrane structure. Membrane used: PVDF (Nanostone PV200), original pore size of 48 ± 1 nm. PAA weight gain ≈ 3.0%. PAH:PAA = 2/1 molar, PSS:PAA = 1/1 molar; OmpF permeated: 1.74 g/m2 of PVDF top surface.