Green synthesis of crystalline silver nanoparticle by bio-mediated plant extract: A critical perspective analysis

• Published in: Nano-Structures & Nano-Objects 2024-09, Vol.39, p.101272, Article 101272
• Main Authors: Sadia, Sumaiya Islam, Shishir, Md. Khalid Hossain, Ahmed, Shanawaz, Alam, Md. Ashraful, Al-Reza, Sharif Md, Afrin, Sabrina, Pappu, Ahasan Ahmed, Jahan, Shirin Akter
• Format: Article
• Language: English
• Subjects: Antibacterial; Antifungal; Green synthesis; Micro-organism; Silver nanoparticles (Ag NPs)
• ISSN: 2352-507X
• DOI: 10.1016/j.nanoso.2024.101272

Silver nanoparticles (Ag NPs) expressed are tiny pieces of silver having a size between 1.0 and 100.0 nm ranges. This study explores the green synthesis of crystalline Ag NPs using plant extracts as bio-mediators. The research critically analyzes the advantages and challenges of this eco-friendly approach compared to conventional physical and chemical methods. Various plant extracts and their effectiveness in reducing silver ions to form stable nanoparticles are examined. The paper discusses the factors influencing nanoparticle formation, including extract composition, pH, temperature and reaction time. Characterization techniques, including X-ray diffraction analysis, Scanning Electron Microscope, Transmission Electron Microscope, UV–visible spectroscopy and Fourier Transform Infrared Spectroscopy were used to analyze the synthesized nanoparticles' size, shape and crystal structure. The potential applications of these bio-synthesized Ag NPs in fields such as medicine, catalysis and environmental remediation are highlighted. Additionally, the study addresses the scalability and reproducibility of this green synthesis method. Overall, this critical perspective provides insights into the current state and future prospects of plant-mediated silver nanoparticle synthesis as a sustainable alternative in nanotechnology. [Display omitted] •The biosynthesis of silver nanoparticles has produced impressive results.•The synthesized AgNPs were characterized by UV–visible, SEM, TEM, XRD and FTIR.•Excellent microorganism growth suppression was demonstrated by the result.•Biosynthesis AgNPs have a low environmental impact and lack of harmful byproducts.•Numerous application fields like bioactivities, food, cosmetics, catalysis etc.