Materials
PLGA (50:50) was purchased from Sigma Chemical Co. (St. Louis, MO, USA).
Rifampicin was purchased from HiMedia, India, and PVA (MW: 30000-70000
Da, 88% hydrolyzed) was purchased from Sigma Chemical Co. (St. Louis,
MO, USA). Acetonitrile (ACN; LCMS grade) and dichloromethane (DCM) were
purchased from Merck Ltd.(Mumbai, India). Dialysis bags (cut-off of 12
kDa) were purchased from HiMedia, India.