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Aspergillus niger Biosensor Based on Tin Oxide (SnO2) Nanostructures: Nanopowder and Thin Film


Affiliations
1 Nano Research Center, Faculty of Science, Ferdowsi University of Mashhad, Iran, Islamic Republic of
2 Angstrom Thin Film Research Laboratory, Ferdowsi University of Mashhad, Iran, Islamic Republic of
3 Fungi lab, Faculty of Science, Ferdowsi University of Mashhad, Iran, Islamic Republic of
4 Physics Department, Faculty of Science, University of Birjand, Birjand, Iran, Islamic Republic of
 

In this paper, SnO2 thin film and nanopowder were prepared by spray pyrolysis and sol-gel methods, respectively. The SnO2 nanostructures were characterized by X-ray diffraction (XRD), Scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Then Aspergillus niger fungus were cultured in an appropriate medium and were exposed to the SnO2 nanofilm and nanopowder. The nano-system electric resistance was measured in the presence of produced gases and the effect of time and temperature on nanobiosensors was studied. Then, SnO2 nanobiosensor was characterized in the presence of silicagel and calcium carbonate.

Keywords

Aspergillus niger Fungi, Spray Pyrolysis Technique, Sol Gel Method
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  • Aspergillus niger Biosensor Based on Tin Oxide (SnO2) Nanostructures: Nanopowder and Thin Film

Abstract Views: 754  |  PDF Views: 120

Authors

E. Azhir
Nano Research Center, Faculty of Science, Ferdowsi University of Mashhad, Iran, Islamic Republic of
R. Etefagh
Nano Research Center, Faculty of Science, Ferdowsi University of Mashhad, Iran, Islamic Republic of
N. Shahtahmasebi
Nano Research Center, Faculty of Science, Ferdowsi University of Mashhad, Iran, Islamic Republic of
M. Mohammadi
Angstrom Thin Film Research Laboratory, Ferdowsi University of Mashhad, Iran, Islamic Republic of
D. Amiri
Fungi lab, Faculty of Science, Ferdowsi University of Mashhad, Iran, Islamic Republic of
R. Sarhaddi
Physics Department, Faculty of Science, University of Birjand, Birjand, Iran, Islamic Republic of

Abstract


In this paper, SnO2 thin film and nanopowder were prepared by spray pyrolysis and sol-gel methods, respectively. The SnO2 nanostructures were characterized by X-ray diffraction (XRD), Scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Then Aspergillus niger fungus were cultured in an appropriate medium and were exposed to the SnO2 nanofilm and nanopowder. The nano-system electric resistance was measured in the presence of produced gases and the effect of time and temperature on nanobiosensors was studied. Then, SnO2 nanobiosensor was characterized in the presence of silicagel and calcium carbonate.

Keywords


Aspergillus niger Fungi, Spray Pyrolysis Technique, Sol Gel Method

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DOI: https://doi.org/10.17485/ijst%2F2012%2Fv5i7%2F30502