Syngonium podophyllum Leaf Extract Mediated Synthesis and Characterization of Gold Nanoparticles for Biosensing Potential: A Sustainable Approach

Author(s): Saumya Srivastava, Anjana Pandey*

Journal Name: Current Nanoscience

Volume 17 , Issue 1 , 2021


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Abstract:

Background: The existing methods of analyte detection by various biochemical processes have certain drawbacks including nonlinearity and detection limits. The nanotechnology has paved a way for the development of new devices i.e., nano-biosensors, by amalgamation of nanoparticles with recognition elements. These nano-biosensors have the capabilities to overcome the drawbacks of conventional methods.

Objectives: Present study was planned to analyze the biosensing potential of indium tin oxide (ITO) electrode modified with gold nanoparticles synthesized using aqueous extract of S. podophyllum.

Methods: In present study, first time rapid green synthesis of gold nanoparticles from leaf extract of Syngonium podophyllum is reported. The synthesized nanoparticles were then characterized physically by UV-Visible spectroscopy, particle size analysis, fluorescent spectroscopy, Fourier transform infrared spectroscopy and transmission electron microscopy (TEM), and HR (High resolution)-TEM.

Results: The particles were observed to be in average size range of 30-70 nm. Furthermore, the ITO electrode was modified with the prepared nanoparticles and analyzed by ellipsometry. The electrochemical characteristics of the modified electrodes were analyzed by cyclic voltammetry.

Conclusion: The results exhibited a higher current gain, thus signifying a higher signal amplification at the electrodes and paves the way for their use in electrochemical nanobiosensors.

Keywords: Gold nanoparticles, green synthesis, FTIR, TEM, ellipsometry, Cyclic voltammetry.

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Article Details

VOLUME: 17
ISSUE: 1
Year: 2021
Published on: 30 April, 2021
Page: [81 - 89]
Pages: 9
DOI: 10.2174/1573413716999200507125437

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