Rod-shaped gold nanoparticles biosynthesized using Pb2+-induced fungus Aspergillus sp. WL-Au

  • Yuanyuan QuEmail author
  • Shengyang Lian
  • Wenli Shen
  • Zheng Li
  • Jing Yang
  • Henglin Zhang
Research Paper


Gold nanoparticles (AuNPs) attracted much attention owing to their distinguished characteristics and applications. In this study, rod-shaped AuNPs were biosynthesized using Pb2+-induced fungus Aspergillus sp. The synthesized AuNPs showed a UV–vis absorption peak at 534 nm. Scanning electron microscopy and transmission electron microscopy analyses showed that rod-shaped AuNPs were biosynthesized and attached on the mycelia surfaces. Energy-dispersive spectrometer analysis identified gold as the unique metallic composition of synthesized nanoparticles. X-ray powder diffraction analysis showed that the AuNPs were face-centered cubic crystalline structure. Furthermore, Fourier transform infrared spectroscopy analysis detected functional groups, including C = O, C–O–C, amine I and II which played active roles in AuNPs formation. In addition, the main shape of synthesized AuNPs changed from sphere to rod-shape with the increase of biomass and Pb2+ concentration. This study reports quite uniform rod-shaped AuNPs biosynthesized using Pb2+-induced fungus Aspergillus sp. WL-Au for the first time. This will provide a valid alternative for oriented biosynthesis of AuNPs.


Rod shape Gold nanoparticles Biosynthesis Aspergillus Pb2+-induced 



This work was supported by the National Natural Science Foundation of China (No. 51508068), the Program for New Century Excellent Talents in University (No. NCET-13–0077), the Fundamental Research Funds for the Central Universities (No. DUT14YQ107), and the Open Project of State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology (No. ESK201529).

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

Ethical approval

The article does not contain any researches with human participants and/or animals performed by any of the authors.


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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  • Yuanyuan Qu
    • 1
    Email author
  • Shengyang Lian
    • 1
  • Wenli Shen
    • 1
  • Zheng Li
    • 1
  • Jing Yang
    • 1
  • Henglin Zhang
    • 1
  1. 1.State Key Laboratory of Fine Chemicals, Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and TechnologyDalian University of TechnologyDalianChina

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