Biosynthesis of Al 2 O 3 and europium-doped Al 2 O 3 nanoparticle using Cymbopogon citratus (lemongrass) extract and its antibacterial property.
Shruti Nandkishor TanwarYatish Ratn ParauhaYogesh ThereSanjay Janaraoji DhoblePublished in: Luminescence : the journal of biological and chemical luminescence (2023)
Cymbopogon citratus-mediated pure aluminium oxide (Al 2 O 3 ) and europium (Eu)-doped Al 2 O 3 with different amounts of metal ion were prepared using a green synthesis method. Synthesised nanoparticles were characterised by ultraviolet (UV)-visible spectroscopy, photoluminescence (PL), Fourier-transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD) and scanning electron microscopy (SEM). Synthesis of nanoparticles is confirmed by using UV-visible spectroscopy showing maximum absorption at 411 and 345 nm for Al 2 O 3 and Eu-doped Al 2 O 3 , respectively. The antibacterial activity of prepared nanoparticles was evaluated against Pseudomonas aeruginosa, Streptococcus aureus, Escherichia coli and Klebsiella pneumoniae using a well-diffusion technique. The effect of pure Al 2 O 3 and Eu-doped nanoparticles shows excellent results against P. aeruginosa, S. aureus, E. coli and K. pneumoniae.
Keyphrases
- escherichia coli
- quantum dots
- electron microscopy
- high resolution
- klebsiella pneumoniae
- pseudomonas aeruginosa
- multidrug resistant
- biofilm formation
- highly efficient
- single molecule
- oxidative stress
- magnetic resonance
- metal organic framework
- photodynamic therapy
- visible light
- essential oil
- mass spectrometry
- walled carbon nanotubes
- energy transfer
- community acquired pneumonia
- iron oxide