Abstract
The bark of Terminilia Arjuna is known for its numerous health benefits in traditional system of medicine. Nanotechnology based delivery system have added advantages of action at targeted location and improved cellular uptake. In the present paper, polymeric nanoparticles of methanolic extract of Terminilia Arjuna (Arjun ki chhal) were synthesized by using solvent evaporation method. The synthesized polymeric nanoparticles were further characterized using SEM, TEM, XRD, FTIR followed by evaluation of antimicrobial activity. The SEM images showed spherical shaped nanoparticles. Further TEM images revealed that particles of size as small as 50-75 nm are formed. PLGA encapsulated nanoparticles shows entrapment efficiency as high as 96.8% and percentage yield comes out to be 45.3. Antimicrobial study using cup-plate method was carried out using two strains of gram (+) bacteria S. aureus and B. pumilus and two strains of gram () bacteria E. Coli and Pseudomonas aeruginosa which shows MIC at 2000 ppm for gram (+) bacteria (both S. aureus and B. pumilus) and 5000 ppm (E. coli) and 6000 ppm (Pseudomonas aeruginosa) for gram () bacteria. From the results obtained it is proposed that polymeric nanoparticles were successfully formed which will enhance the efficacy of active components in the bark of Terminilia Arjuna and also demonstrates promising use in various pharmaceutical formulations as they show considerable results in the inhibition of bacterial growth.
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