Abstract
ABSTRACTThis study focuses on time-dependent microwave-assisted biosynthesis of silver nanoparticles using aqueous peel extracts of Citrus paradisi as a reducing, stabilizing and capping agent with emphasis on its antibacterial property. Optical, structural and morphological properties of the synthesized Citrus paradisi peel extract silver nanoparticle (CPAgNp) were characterized using UV-visible spectrophotometer, transmission electron microscope (TEM), scanning electron microscope (SEM), energy dispersive spectroscopy (EDS), Brunauer–Emmett–Teller (BET) and X-ray diffractometer (XRD). The antimicrobial activity was evaluated using the well- and disc-diffusion methods. Characteristic surface plasmon resonance (SPR) wavelength in the range of 420–440 nm at an optimized intensity growth rate typical of silver nanoparticles was obtained. The synthesized CPAgNp are spherical in shape having the size range of 14.84 ± 5 nm and possessing fcc unit phase structure. The Citrus paradisi peel extract mediated AgNp were found to possess a broad-spectrum antimicrobial activity against water-borne pathogenic microbes.
Highlights
In the last decades, efforts are aiming at developing environmental benign, efficient, new energy transfer methods and cost-effective route in the synthesis of nanomaterial paramount for the survival of human life, environmental protection and recovery
UV-visible analysis Understanding the growth rate of the biosynthesized silver nanoparticles towards integration into a specific application is critical for optimizing performance
The changes associated with these color variations are due to characteristic vibrations due to changes in electronic energy levels, which arise from the coupling between the electron cloud on the CPAgNps surface with the incident electromagnetic radiation typical of the surface plasmon resonance phenomenon [21–23]
Summary
Efforts are aiming at developing environmental benign, efficient, new energy transfer methods and cost-effective route in the synthesis of nanomaterial paramount for the survival of human life, environmental protection and recovery. The importance of choosing a proper synthetic route in designing nanostructured materials has been a driving force for the development of new methodologies for several decades [3]. Microwave-assisted synthesis methods provide a much faster way to prepare materials and to create smaller particulate materials, contributing to energy savings and satisfying the demands for more environmentally benign materials and procedures [4]. In nano-structuring of material; the size, shape, stability as well as application of the nanomaterials during synthesis depends upon the choice of the reductants, capping and stabilizing agent. The use of material of biological entities in the formation of nanomaterial with significantly novel, improved structural and biological properties are progressively associated with modern developments in the field of material and nanoscience
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
