Abstract
The present study is focused on the applications of biosynthesized silver nanoparticles in various fields. Silver nanoparticles are synthesized in vitro using marine bacteria Shewanella algae bangaramma in the laboratory. The silver nanoparticles are characterized by using UV–Vis spectrum, TEM, FTIR, EDAX, XRD and AFM analysis. The synthesized silver nanoparticles are spherical, crystalline and 5-30 nm in diameter. They were found to have both larvicidal and bactericidal activities. There is no mortality in the control. The maximum LC 50 and LC 90 values with 95% confidential limit (4.529 mg/ml (2.478 - 5.911), 9.580 mg/ml (7.528-14.541) were observed with III- instar larvae of Lepidiota mansueta (Burmeister). In exposed groups the mortality of the larvae was significantly increased in all concentrations (p < 0.0001). The order of bactericidal activity against marine fouling bacteria is found to be Pseudomonas sp. < Vibrio cholerae < Roseobacter sp. < Alteromonas sp. To date, this is the first report on the marine bacteria mediated synthesis of silver nanoparticles in culture medium which has effective larvicidal and antifouling activities.
Keywords: Antifouling, biosynthesis, larvicidal, Lepidiota mansueta, Shewanella algae, silver nanoparticles.
Graphical Abstract
Call for Papers in Thematic Issues
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The application of nanoscience has brought about a revolution in the field of mechanical engineering by providing novel materials, boosting manufacturing processes, and generating cutting-edge products. The purpose of this special issue is to investigate the enormous impact that nanoscience has had on mechanical engineering, with a particular emphasis on ...read more
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This special issue collection will highlight developments on the recent trends about the synthesis of metal oxides, nanoclusters, biomaterials, 2D nanomaterials, nanocrystals, nanocomposites, etc. and their applications in electrochemical systems, tissue regeneration, energy storage and harvesting, sensors, etc. The novelty of the methods in the chemical synthesis and their characterizations, ...read more
Applicability of Nanotechnology for Performance Enhancement of Clean Energy Technologies
Population growth, industrialization, and improvement in living quality would lead to further increase in energy demand in near future. Regarding the disadvantages of fossil fuels such as fluctuations in their price, high emissions of greenhouse gases and restriction of their sources, it is crucial to use and exploit alternative energy ...read more
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This thematic issue will discuss the recent advances in graphene-based nanomaterials for different energy technologies. Graphene possesses a high surface area, and stable structure and exhibits many interesting electronic, optical, and mechanical properties due to its 2D crystal structure. Graphene is of both fundamental interest and suitable for a wide ...read more
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