Biosynthesis of silver nanoparticles using red algae Portieria hornemannii and its antibacterial activity against fish pathogens. (January 2020)

• Record Type: Journal Article
• Authors: Fatima, Roohi; Priya, Monisha; Indurthi, Lavanya; Radhakrishnan, Vidya; Sudhakaran, Raja
• Is Part Of: Microbial pathogenesis. Volume 138(2020)
• Publication Date: 2020-01
• Subjects: Portieria hornemannii -- Biosynthesis -- Silver nanoparticles -- Fish pathogens -- Antimicrobial activity; Pathogenic microorganisms -- Periodicals; Pathology, Molecular -- Periodicals; Communicable Diseases -- microbiology -- Periodicals; Communicable Diseases -- parasitology -- Periodicals; Micro-organismes pathogènes -- Périodiques; Pathologie moléculaire -- Périodiques; Electronic journals; 616.9041
• DOI: 10.1016/j.micpath.2019.103780
• Languages: English
• ISSNs: 0882-4010

Abstract

Abstract: In the present study, red algae Portieria hornemannii was scrutinized for the productive synthesis of silver nanoparticles. These biosynthesized nanoparticles were characterized by visible color change and ultraviolet visible spectrophotometry that indicated the formation of nanoparticles at the absorbance of 418 nm. Fourier transforms infrared spectroscopy, X-ray Diffraction analysis was further carried out to study the functional groups and crystalline nature of the substance. Scanning electron microscopy and Transmission electron microscopy exposed the shape of the silver nanoparticles, which was found to be spherical. Energy dispersive X-ray spectroscopy confirmed the presence of the metal silver. Stability of nanoparticles was analyzed using Zeta potential. The synthesized nanoparticles were found to be active against the fish pathogens Vibrio harveyii, Vibrio parahaemolyticus, Vibrio alginolyticus and Vibrio anguillarum. The highest activity was found against the pathogens V. harveyii and V. parahaemolyticus. We have established an environmental friendly synthesis of Silver nanoparticles which can be used as an alternative to commercially available antibiotics in the treatment of fish diseases. Highlights: Biosynthesized nanoparticles showing antibacterial activity against pathogenic Vibrio species. This nanoparticle could be a remedy on scaling up further. The results provided are synthesis, characterization and confirmation of activity using various methods.