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Garibo, D.D., Nuñez, H.A.B., De León, J.N.D., Mendoza, E.G., Estrada, I., Magaña, Y.T., Tiznado, H., Marroquin, M., Ramos, A.G.S., Blanco, A., Rodríguez, J.A., Romo, O.A., Almazán, L.A.C. and Arce, A.S. (2020) Green Synthesis of Silver Nanoparticles Using Lysiloma acapulcensis Exhibit High-Antimicrobial Activity. Scientific Reports, 10, Article No. 12805.
https://doi.org/10.1038/s41598-020-69606-7

has been cited by the following article:

• TITLE: Musa Paradaisica and Vitis vinifera Functionalised Ag-NPs: Electrochemical and Optical Detection of Escherichia coli in Seawater

  AUTHORS: Sphamandla Nqunqa, Takalani Mulaudzi, Njagi Njomo, Usisipho Feleni, Rachel F. Ajayi

  KEYWORDS: Cyclic Voltammetry, Electrochemical Sensors, Escherichia coli 0157:H7, Musa paradisiaca, Vitis vinifera, Silver Nanoparticles

  JOURNAL NAME: Journal of Surface Engineered Materials and Advanced Technology, Vol.12 No.3, October 31, 2022

  ABSTRACT: Herein, we demonstrate a simple and inexpensive one-pot green synthesis of silver nanoparticles (Ag-NPs) functionalised with a combination of banana peel (Musa paradisiaca) and grape (Vitis vinifera) fruit extracts. The reaction mixture of aqueous silver nitrate, banana peel and grapefruit extracts revealed a dark brown colour after a reaction time of 18 minutes, which indicates the presence and the successful synthesis of silver nanoparticles. The optical and structural properties of the green synthesised nanoparticles were analysed using UV-Visible spectroscopy (UV-Vis) which confirmed an absorption band at 440 nm. The polydispersity nature and the AgNPs sizes of 30 nm were revealed using small angle X-ray scattering (SAXS) and high-resolution transmission electron microscopy (HR-TEM) techniques. Fourier transform infrared spectroscopy (FT-IR) studies revealed the structure of these nanoparticles which included carbonyl groups, primary amine groups, OH groups and other stabilizing functional groups characteristic of the properties of combined extracts. A simple, quick, less time-consuming surface plasmon resonance (SPR) and electrochemical method in the form of optical and electrochemical sensors have been developed for the detection of Escherichia coli 0157:H7. The obtained limit of detection (LOD) values for SPR and GBPE-Ag-NPs/GCE-based sensor systems were found to be 1 × 102 CFU/mL and 3.5 × 101 CFU/mL, respectively. The obtained values fall within the range for E. coli 0157:H7 in seawater.