Silvia L Esteban

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Hydrogels of carbomer (C) and azithromycin (AZI) were prepared by neutralizing with AZI 50% of the carboxylic groups of 0.25% C(974) and C(934) dispersions. The hydrogels exhibit pH close to 8 and are physically stable. Titration with NaCl revealed a high degree of counterion condensation C-AZI. The release of AZI in a Franz cell was almost negligible when(More)
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