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. Author manuscript; available in PMC: 2012 Oct 1.
Published in final edited form as: Biomaterials. 2011 Jul 18;32(30):7491–7502. doi: 10.1016/j.biomaterials.2011.06.032

Figure 1. Layer-by-layer assembly of (PrS/SPS)n PEMs.

Figure 1

Substrate is first submerged in the polycation solution, protamine sulfate (PrS); 21 of 32 amino acids are arginine, R. Following a rinse in deionized water, the PrS-coated substrate is then immersed in the polyanion solution, sodium (4-sulfonated poystyrene) (SPS), followed by another water rinse.