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. Author manuscript; available in PMC: 2010 Mar 2.
Published in final edited form as: Adv Funct Mater. 2010 Jan 22;20(2):247–258. doi: 10.1002/adfm.200901172

Figure 1.

Figure 1

a) Fluorescence intensity measurements of TRITC conjugated to amine terminated PEG (PEG-Amine-TRITC) showed increased adsorption of PEG onto the agarose structure during the LbL deposition of BSA/(PEG-Amine-TRITC) multilayers on agarose hydrogel. b) UV/Vis absorbance measurements at 280 nm showed increased adsorption of bovine serum albumin (BSA) protein onto the agarose structure during the LbL deposition of BSA/(PEG) multilayers. The absorbance values are shown with respect to the absorbance of bare agarose, that is, the difference between the absorbance of LbL coated agarose and the absorbance of bare (non-coated) agarose. Five precursor bilayers of (PAA/PEG) with LPEI as the LbL initiating polymer were built over agarose in each case. BLs denote the number of bilayers. c) Corresponding decrease in lysozyme concentration in the bulk solution from the initial concentration as a function of the number of bilayers.