Instrumental Characterization and Antibacterial Investigation of Silver Nanoparticles Synthesized From Garcinia Kola Leaf

  • Sunday Adewale AKINTELU Department of Pure and Applied Chemistry, Ladoke Akintola University of Technology, Ogbomoso, Nigeria
  • Aderonke Similoluwa FOLORUNSO Department of Chemistry, Louisiana State University, Louisiana, USA
  • Olabisi Theresa ADEMOSUN Department of Chemical science, Covenant University, Otta, Nigeria

Abstract

The need to devise another method of synthesizing nanoparticles from sources that are eco-friendly, non-hazardous and cost effectiveness is of great importance in preventing environmental and health problems. The aim of this study was to evaluate the efficiency of Garcinia kola leaves as reducing and stabilizing agent for silver nanoparticles synthesis. The leaves of Garcinia kola obtained were authenticated, air dried, pulverized and extracted. The extract was mixed with aqueous solution of silver nitrate solution to form silver nanoparticles and were characterized using Ultra violet (UV) spectroscopy, Fourier transform infrared (FTIR) spectroscopy, Scanning electron microscopy (SEM), Transmission electron microscopy (TEM), Energy-dispersive X-ray spectroscopy (EDX) and X-ray diffraction (XRD). The antibacterial investigation of the synthesized silver nanoparticle was carried out following the disk diffusion method. UV analysis revealed the silver surface plasmon band at 425.18 nm, The FTIR indicated -OH, -C=C- and alkane as the functional groups responsible for the stabilization of the silver nanoparticle formed. The morphological assessment from SEM and TEM analysis confirmed that the silver nanoparticle formed are spherical in shape with an average particle size of 28.80nm.The EDX analysis ascertained that the silver surface plasmon resonance at 2.8–3.2 keV was confirmed the reduction of silver ion (Ag+ to Ag0). The XRD study revealed the crystalline nature of the nanoparticles synthesized. The antibacterial investigation showed high inhibition against the growth of tested bacteria.  This study ascertained that the green synthesis of silver nanoparticle without the use of harmful solvent that are offensive to the environment is achievable. 


Keywords: Silver nanoparticles, Biosynthesis, Characterization, Antibacterial activity and Garcinia kola.

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References

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AKINTELU, S. A., FOLORUNSO, A. S., & ADEMOSUN, O. T. (2019). Instrumental Characterization and Antibacterial Investigation of Silver Nanoparticles Synthesized From Garcinia Kola Leaf. Journal of Drug Delivery and Therapeutics, 9(6-s), 58-64. https://doi.org/10.22270/jddt.v9i6-s.3749