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- 저자 : Swetha Gangishetty (검색결과 1 건)
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Proliposomes of lisinopril dihydrate for transdermal delivery: Formulation aspects and evaluation
Suresh Bandari,Swetha Gangishetty,Basanth Babu Eedara,Raju Jukanti,Prabhakar Reddy Veerareddy 한국화학공학회 2013 Korean Journal of Chemical Engineering Vol.30 No.8
We formulated and evaluated proliposomal gel of relatively low bioavailable drug lisinopril dihydrate (LDH)for transdermal delivery. Several proliposomal gel formulations of lisinopril dihydrate were prepared by modified coacervation phase separation method and examined for formation of liposomes by optical microscope and characterized by transmission electron microscopy. The formulations were evaluated for size, zeta potential, entrapment efficiency,rheological behavior, ex vivo drug permeation, skin irritation and stability. Differential scanning calorimetry (DSC)and Fourier transform infrared (FTIR) studies were performed to understand the phase transition behavior and mechanism for skin permeation, respectively. The microscopic examination revealed the formation of liposomes from proliposomal gel, and the size of the vesicles was found to be in the range of 385 nm to 635 nm. Entrapment efficiency was high for the formulation containing greater amounts of phosphatidylcholine. The DSC studies indicated the amorphous form of LDH in proliposomal gel formulation. Ex vivo permeation studies revealed sustained permeation of drug from proliposomal gels studied. The stability studies reveal that the proliposomal formulations are more stable when stored at refrigeration temperature (4 oC). In conclusion, proliposomal gels offer potential and prove to be efficient carriers for improved and sustained transdermal delivery of lisinopril dihydrate.
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