@article {930, title = {Antioxidant Activity of Cumin Oil Mediated Silver Nanoparticles}, journal = {Pharmacognosy Journal}, volume = {11}, year = {2019}, month = {July 2019}, pages = {787-789}, type = {Original Research Study}, chapter = {787}, abstract = {

Aim: The aim of the study was to employ cumin oil in the synthesis of silver nanoparticles and check the antioxidant activity of the cumin oil mediated silver nanoparticles. Background: The introduction of Nanoparticles (NPs) has revolutionized every field including medicine, nutrition and energy. The use of nanotechnology in medicine especially for drug delivery is shown to have various benefits. Nanoparticles are being used to reduce toxicity and side effects that drugs may impose to the patient. Cumin (Cuminum cyminum) is a common spice used for its distinct aromatic effect. Plant mediated biological synthesis of nanoparticles has been gaining importance due to its simplicity and eco friendliness. This study therefore was aimed to synthesize cumin oil mediated silver nanoparticles and assess its antioxidant activity. Materials and Methods: Cumin oil mediated silver nanoparticles were initially synthesised and characterised by UV-Visible spectrophotometer and TEM. Further the cumin oil mediated AgNPs were subjected to DPPH assay to determine the antioxidant activity. Results: Cumin oil mediated AgNPs were biosynthesised with ease and showed good antioxidant activity compared to standard. Conclusion: This study conclude that cumin seed oil mediated silver nanoparticles have the potential to be used as an effective antioxidant. Hence, it may be employed in large scale production and may be used in many medicinal applications where there is a need for antioxidant.

}, keywords = {AgNP, antioxidant activity, Biosynthesis, Cumin oil, Nanoparticles}, doi = {10.5530/pj.2019.11.125}, author = {Nagarajan Keerthiga and Roy Anitha and S Rajeshkumar and Thangavelu Lakshmi} } @article {200, title = {Synthesis of Plant Mediated gold Nanoparticles using Azima Tetracantha Lam. Leaves extract and Evaluation of their Antimicrobial Activities}, journal = {Pharmacognosy Journal}, volume = {8}, year = {2016}, month = {Oct 2016}, pages = {507-512}, type = {Original Article}, chapter = {507}, abstract = {

Aim: The demand for nanoparticles is increasing day by day due to their wide range of applications in various areas including pharmaceutical industry. Nanoparticles are formally synthesized by chemical methods in which the toxic and flammable chemicals are used. Methods: This article reports about an effective, rapid and eco-friendly technique for the fabrication of gold nanoparticles from gold chloride solution using Azima tetracantha Lam. leaves extract. The effects of the leaves extract of Azima tetracantha, the concentration of Gold chloride solution, the time of the reaction and the effect of tem\¬perature on the rate of the reaction were investigated. The synthesized gold nanoparticles (AuNPs) were characterized by using various techniques such as Dynamic Light Spectroscopy (DLS), Scanning Electron Microscopy (SEM), UV-Vis spectra gave surface plasmon resonance (SPR) at 540 nm, Fourier Transform Infrared spectroscopy (FTIR) and X-ray diffraction (XRD). This revealed the reduction of gold ions (Au+) to gold metal (Au0) which indicated the formation of gold nanoparticles (AuNPs). Results: The antimicrobial action of biosynthesized AuNPs indicated effective activity against bacterial pathogens Aeromonas liquefaciens, Enterococcus fecalis, Micrococcus luteus, Salmonella typhimurium and fungal pathogens Candida albicans, Cryptococcus sp, Microsporum canis, Trichophyton rubrum. Conclusion: This revealed that gold nanoparticles could provide a safer alternative to conventional antimicrobial agents.

}, keywords = {Antimicrobial Activity., Azima tetracantha Leaves Extract, Biosynthesis, Characterization, Gold Nanoparticles}, doi = {10.5530/pj.2016.5.17}, author = {Abirami Hariharan and Tajuddin Nargis Begum and Mohamed Hussain Muhammad Ilyas and Hussain Syed Jahangir and Premkumar Kumpati and Shilu Mathew and Archunan Govindaraju and Ishtiaq Qadri} }