The present study reports the simple, rapid and ecofriendly synthesis of silver nanoparticles (AgNPs) using aqueous leaf extract of Indigofera barberi. The aqueous leaf extract of I. barberi reduces the silver ions (Ag+) into AgNPs (silver nanoparticles synthesized from I. barberi leaf extract). Fourier transform infrared spectroscopy analysis showed the broad peaks at 1054, 1371, 1589, 2355, 2933, and 3257 cm −1 which indicated the participation of polyhydroxy compounds and proteins respectively in the biosynthesis and stabilization of AgNPs. TEM analysis showed that the AgNPs synthesized in this study were spherical in shape and having a dimension of 5-20 nm. XRD analysis of AgNPs confirmed the crystalline nature with face centered cubic lattice. Particle size analysis showed that AgNPs were 2-10 nm in size with average hydrodynamic radius of 3.4 nm. Zeta potential value of the AgNPs was found to be − 13.3 mV. AgNPs showed effective antimicrobial activity against both Gram−ve and Gram+ve bacteria. AgNPs showed effective antioxidant activity by quenching DPPH and H 2 O 2 radicals with IC-50 values of 67.37 and 72.04 µg/mL, respectively.
Objective: Peptic ulcer causes lesions in the stomach and oesophagus. The present work is aimed to develop the effervescent granules of Ranitidine Hydrochloride to relieve the pain instantly.: Effervescent Materials and methods granules were prepared by dry granulation technique using disodium citrate, sodium saccharin, polyvinyl pyrrolidine, glycine, sodium benzoate, sodium bicarbonate. The prepared granules were evaluated for angle of repose, bulk and tapped density, carr's index and hausner's ratio, in-vitro drug release studies and DSC.The angle of repose for Results: formulations F1-F6 was obtained in the range of 32.38°±0.34 to 37.65°±0.53 which indicates the passible flow property of the formulation. Bulk density and Tapped density for formulations F1-F6 was obtained in the range of 0.42 ± 0.01 to 0.46 ±0.02 and 0.51±0.02 to 0.58±0.02 respectively. The Carr's Index and Hausners Ratio for the formulations F1-F6 was obtained in a range of 15.85±2.97 to 22.4 ± 2.88 and 1.256±0.05 to 1.196±0.04 which indicates good flow property of the given formulation. Percentage release of the drug for the formulations F1-F6 was obtained in a range of 50% to 91%.Among all formulations F4 formulation has highest amount of drug release compared to other Conclusion: formulations. Hence it was considered as promising formulation for further studies. DSC of F4 formulation was found be at 184.5 which indicates that there is no incompatibility between the drug and excipients.
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