Alcoholinduced dose dumping is a major concern in modified release formulations. We developed green tea polyphenols encapsulated albumin nanoparticles (GTPALBNPs) to check the key factors governing alcoholinduced dose dumping. GTPALBNPs were prepared from 10 % albumin solution and 5 mg/ml GTP. Nanoparticles were characterized by dynamic light scattering (DLS), atomic force microscopy (AFM) and highresolution scanning electron microscopy (HRSEM). Drug solubility, swelling behavior, media uptake, and wettability/contact angle measurement were studied. In vitro drug release was studied in release medium with different quantities of alcohol and release kinetics was determined. The similarity factor (f2) test was used to assess the dissolving characteristics of drug in both alcoholic and nonalcoholic medium and the corresponding change in the medium was calculated. GTPALBNPs of < 100 nm size were synthesized. GTP became more soluble when the amount of alcohol in the release media was increased. Similar results were witnessed for swelling behavior and the media uptake studies. Contact angle measurements showed all dissolution profiles to be < 90 º. Cumulative release of GTP was increased with increase of alcohol in the release medium. Maximum GTP release (~95 %) was observed in PBS with 40 % alcohol in 48 h, showing no dose dumping. The release data followed anomalous mode of drug dissolution and were modelled into zero order kinetics. The six months stability testing conducted at 25 ± 2 ºC revealed no significant difference. GTPALBNPs showed a positive effect in alcoholic media compared to nonalcoholic medium. Increased alcohol proportion increased along with the drug release percentage. GTPALBNPs could be safe with respect to alcoholinduced dose dumping and used as a potent carrier of GTP.
Keywords: Albumin nanoparticles, anomalous transport, dose dumping, green tea polyphenols, similarity factor, zero order kinetics

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