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Mycogenic synthesis of silver nanoparticles by the Japanese environmental isolate Aspergillus tamarii

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Abstract

In this study, an environmental friendly process for the synthesis of silver nanoparticles (AgNPs) using a fungus Aspergillus tamarii has been investigated. The process of silver ion reduction by the fungal extracellular filtrate was spontaneous which lead to the development of an easy process for synthesis of silver nanoparticles. The AgNPs formed were characterized using UV–Visible spectrum, FTIR, and SEM. The results revealed that silver ions reduction by the fungal extracellular filtrate started at 420 nm after 0.5 h of incubation time. The FTIR peaks were observed at 1393, 1820, 2727, and 3545 cm−1. The SEM result showed the distribution of spherical AgNPs ranging from 25 to 50 nm.

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Acknowledgments

The authors acknowledge Gene bank, National Institute of Agrobiological Sciences (NIAS), Japan for providing the fungal culture and also Dr. K. Jeganathan, Coordinator, Centre for Nanoscience and Nanotechnology, Bharathidasan University, Tiruchirappalli, India for providing SEM facility. One of author Rajesh kumar acknowledges UGC for providing Rajiv Gandhi National Research Fellowship.

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Authors and Affiliations

  1. Laboratory of Molecular Microbial Bioremediation and Nanobiotechnology, Department of Environmental Biotechnology, Bharathidasan University, Tiruchirappalli, 620 024, Tamilnadu, India

    Ramasamy Rajesh Kumar, Krishnamurthy Poornima Priyadharsani & Kaliannan Thamaraiselvi

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  1. Ramasamy Rajesh Kumar
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  2. Krishnamurthy Poornima Priyadharsani
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  3. Kaliannan Thamaraiselvi
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Correspondence to Kaliannan Thamaraiselvi.

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Rajesh Kumar, R., Poornima Priyadharsani, K. & Thamaraiselvi, K. Mycogenic synthesis of silver nanoparticles by the Japanese environmental isolate Aspergillus tamarii . J Nanopart Res 14, 860 (2012). https://doi.org/10.1007/s11051-012-0860-2

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  • DOI: https://doi.org/10.1007/s11051-012-0860-2

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