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Larvicidal Potential of Biologically Synthesised Silver Nanoparticles against Aedes Albopictus

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Author Affiliations

  • 1 School of Environmental Studies, Cochin University of Science and Technology, Kochi, Kerala, INDIA
  • 2 Rajiv Gandhi Chair in Contemporary Studies, Cochin University of Science and Tech., Kochi, Kerala, INDIA
  • 3 Department of Chemical Oceanography, Cochin University of Science and Technology, Kochi, Kerala INDIA
  • 4 Soil Science Department, Kerala Forest Research Institute, Peechi, Thrissur, Kerala, INDIA

Res. J. Recent Sci., Volume 1, Issue (ISC-2011), Pages 52-56, (2012)

Abstract

Understanding of biological processes at the nanoscale level is a strong driving force behind development of nanotechnology. Silver nanoaparticles have important applications in the field of biology. Stable silver nanoparticles were synthesized by biological reduction method. The objective of the present study was to evaluate the larvicidal activity of silver nanoparticles synthesized from aqueous leaf extract of Hibiscus rosasinensis against the larvae of Aedes albopictus mosquito reared in rubber plantation. The parasite larvae were exposed to varying concentrations of aqueous extract of Hibiscus rosasinensis and synthesized silver nanoparticles for 24 h as per WHO protocols. Distilled water served as control. Percentage mortality was recorded. The synthesized nanoparticles exhibited significant larvicidal activity. This method is considered as an innovative alternative approach using green nanochemistry technique to control vector parasites and is the first report on mosquito larvicidal activity of Hibiscus rosasinensis leaf mediated synthesized silver nanoparticles.

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