Mapping in vivo microclimate pH distribution in exenatide-encapsulated PLGA microspheres

The pH inside the aqueous pores of poly(lactic-co-glycolic acid) (PLGA) microspheres, often termed microclimate pH (μpH), has been widely evaluated in vitro and shown to commonly be deleterious to pH-labile encapsulated drug molecules. However, whether the in vitro μpH is representative of the actua...

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