Ubaidulla, U Chitosan phthalate microspheres for oral delivery of insulin: preparation, characterization, and in vitro evaluation. [electronic resource] - Drug delivery Jan 2007 - 19-23 p. digital Publication Type: Journal Article ISSN: 1071-7544 Standard No.: 10.1080/10717540600559478 doi Subjects--Topical Terms: Administration, OralChitosan--chemistryChromatography, High Pressure LiquidDrug CompoundingElectrochemistryElectrophoresis, Polyacrylamide GelEmulsionsHydrogen-Ion ConcentrationHydrolysisHypoglycemic Agents--administration & dosageInsulin--administration & dosageMicrospheresParticle SizePepsin A--chemistrySpectrophotometry, InfraredTrypsin--chemistry