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Effects of pH at which polypeptide multilayer nanofilms were assembled on release of (a) cefazolin and (b) MB. Both cefazolin and MB were released at pH 7.0. Cefazolin was released from (PLL/PLGA)20 nanofilms that were loaded with cefazolin at pH 7.0 for 20 min. MB was released from (PLL/PLGA)20 nanofilms that were loaded with MB at pH 7.0 for 20 min.
Abbreviations: MB, methylene blue; PLGA, poly-l-glutamic acid; PLL, poly-l-lysine
