In the Present study reports the green synthesis of silver nanoparticles (AgNPs) using Musa acuminata Colla (Nendran banana flower) extract used as a natural reducing agent. The synthesized AgNPs were characterized using X-ray diffraction (XRD), UV–visible spectroscopy, Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), glucose analysis, and antibacterial activity tests. XRD analysis confirmed that the synthesized nanoparticles exhibited a face-centered cubic (FCC) crystalline structure, with silver being the dominant phase, as verified by comparison with the JCPDS card. The average crystalline size was calculated by using the Debye–Scherrer equation is 29 nm. UV–visible spectroscopy displayed a characteristic the absorption peak at 423 nm, this indicating the formation of AgNPs and the optical direct band gap was calculated using Tauc’s plot equationand the value is 2.8 eV. FTIR spectra indicated the presence of bioactive compounds in banana flower extract, verifying their contribution to the reduction and stabilization of silver ions. Scanning electron microscopy (SEM) image shows the agglomerated nanoparticle with irregular shape. The antibacterial properties of the synthesized silver nanoparticles (AgNPs) were tested against Bacillus cereus and Pseudomonas aeruginosa. Among them Bacillus cereus displaying greater sensitivity. This work highlights the potential of plant-based biomaterials in the eco-friendly synthesis of AgNPs, in alignment with the principles of green chemistry, and emphasizes their promising applications in biomedical and antimicrobial fields.

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Green Synthesized Silver Nanoparticles Using Banana Flower Extract—Structural, Optical and Antibacterial Study

  • G. Jegatheesan,
  • B. Bagyalakshmi,
  • K. Karthick,
  • M. Veera Gajendra Babu

摘要

In the Present study reports the green synthesis of silver nanoparticles (AgNPs) using Musa acuminata Colla (Nendran banana flower) extract used as a natural reducing agent. The synthesized AgNPs were characterized using X-ray diffraction (XRD), UV–visible spectroscopy, Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), glucose analysis, and antibacterial activity tests. XRD analysis confirmed that the synthesized nanoparticles exhibited a face-centered cubic (FCC) crystalline structure, with silver being the dominant phase, as verified by comparison with the JCPDS card. The average crystalline size was calculated by using the Debye–Scherrer equation is 29 nm. UV–visible spectroscopy displayed a characteristic the absorption peak at 423 nm, this indicating the formation of AgNPs and the optical direct band gap was calculated using Tauc’s plot equationand the value is 2.8 eV. FTIR spectra indicated the presence of bioactive compounds in banana flower extract, verifying their contribution to the reduction and stabilization of silver ions. Scanning electron microscopy (SEM) image shows the agglomerated nanoparticle with irregular shape. The antibacterial properties of the synthesized silver nanoparticles (AgNPs) were tested against Bacillus cereus and Pseudomonas aeruginosa. Among them Bacillus cereus displaying greater sensitivity. This work highlights the potential of plant-based biomaterials in the eco-friendly synthesis of AgNPs, in alignment with the principles of green chemistry, and emphasizes their promising applications in biomedical and antimicrobial fields.