Biosynthesis and characterization of silver nanoparticles (AgNPs) using marine bacteria against certain human pathogens
Journal Title: International Journal of Advances in Scientific Research - Year 2016, Vol 2, Issue 7
Abstract
The present work investigates the synthesis of silver nanoparticles (AgNPs) by biological method using marine bacteria. The minimum inhibitory concentration (MIC) test was performed to find the inhibitory concentration of AgNO3 against marine bacterial isolate. After MIC study, the biogenic AgNPs was prepared through marine bacterial isolate and characterized by using UV-visible spectroscopy, Scanning Electron Microscopy (SEM), X Ray Diffraction (XRD), and Fourier transform infrared spectroscopy (FTIR). From the UV-visible spectroscopy, the absorption peak was found at 420 nm. In SEM image, it is confirmed that the sample contains spherical shaped silver nanoparticles and most of the particles were below 100 nm in size. In XRD analysis, it was confirmed that the silver nanoparticles are crystalline in nature, which was confirmed by the FTIR peak at 518 cm-1 corresponding to the Ag vibration present in crystalline structure. The antimicrobial activity of silver nanoparticles was determined by disk diffusion method, and found that silver nanoparticles have significant antibacterial activity against most of the pathogens.
Authors and Affiliations
J. Nasrin Begam
Keywords
Related Articles
- EP ID EP335318
- DOI 10.7439/ijasr.v2i7.3514
- Views 117
- Downloads 0
Improvement and consistency of realization investigation in mathematic for higher secondary students
The current schoolwork is an endeavour to increase and authenticate the Mathematics realization test for higher secondary school students in Vellur district. A various choice investigation of 100 substances from 11th sta...
Assessment of multi-metal resistant bacteria from Periyar river, Southern India
A total of thirty bacterial strains were isolated from the water and sediment samples of Periyar River during premonsoon 2015 for multi-metal resistant study. In this study, the bacterial isolates were challenged against...
Halobacterium sp. NRC-1: A Review
Halobacterium sp. NRC-1 is the halophilic bacterium. This halophile has a great potential to survive on high salinity conditions. The genome of this bacterium has sequenced. The studies have done at metagenomics level, w...
In silico analysis of fluoride transport proteins from prokaryotic and eukaryotic organisms
In silico analysis of Fluoride transporter proteins obtained from database are presented in this study. The composition of alanine and glycine was high while low concentrations of aspartic acid, cysteine and glutamine we...
Model for Predicting and Analyzing the %Fe Removed as Deleterious Element from Al-Si alloys During Fe Removal Processing with Mn
Model equation for predicting and analysing %Fe removed from a eutectic Al-Si alloy during Fe removal processing with Mn under controlled conditions has been derived and validated. The model derived; % Fe removed = +1.30...