Abstract
Antiviral assays of chemically and biologically synthesized silver nanoparticles were made against BmNPV (Bombyx mori Nuclear Polyhedrosis Virus). Reduction of silver ions by sodium citrate and Spirulina platensis led to the formation of spherical silver nanoparticles of 40–60 and 7–16 nm size. Single cell protein (Spirulina platensis)-synthesized silver nanoparticles showed the strongest antiviral activity. Immunological studies made on the silkworm Bombyx mori disclosed that a significant increase in the total hemocyte count and differential hemocyte count due to S. platensis-synthesized silver nanoparticles supplementation. Improvement in the defense mechanism was noticed from the strengthened peritrophic membrane of the digestive tract and the increased total protein. Overall, the results presented illustrate that single cell protein-synthesized silver nanoparticles supplementation is effective in controlling viral-borne diseases of the silkworm.
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The authors profusely thank the Department of Science and Technology (DST Nanomission), New Delhi, Government of India for the financial assistance, and HR-TEM assistance of SAIF, IIT, Chennai. The authors also thank Prof. A.Jothi Murugan, Vice-chancellor, and Prof. B.Krihnamurthy, Registrar, Thiruvalluvar University, Vellore for their support and encouragements.
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Govindaraju, K., Tamilselvan, S., Kiruthiga, V. et al. Silvernanotherapy on the viral borne disease of silkworm Bombyx mori L.. J Nanopart Res 13, 6377–6388 (2011). https://doi.org/10.1007/s11051-011-0390-3
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DOI: https://doi.org/10.1007/s11051-011-0390-3