Figure 6.

SDS-PAGE patterns, obtained under conditions of uncoated chitosan microparticles containing BSA pretreated with 0.01 M HCl for 2 h then sustained release in PBS for 24 h (Lane 1), alginate coated chitosan microparticles containing BSA pretreated with 0.01 M HCl for 2 h then sustained release in PBS for 24 h (Lane 2), BSA pretreated with 0.01 M HCl for 2 h then incubation with PBS for another 24 h (Lane 3), BSA incubation with PBS for 24 h (Lane 4), Molecular weight marker (Lane 5).

Li et al. BMC Biotechnology 2008 8:89   doi:10.1186/1472-6750-8-89
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