Open AccessSynthesis of antibacterial flower‐like silver nanostructures by self‐assembly of diphenylalanine peptide on graphite
Author(s) -
Allafchian Alireza,
Mousavi Seyed Hosein,
Jalali Seyed Amir Hossein
Publication year - 2020
Publication title -
micro and nano letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.25
H-Index - 31
ISSN - 1750-0443
DOI - 10.1049/mnl.2020.0076
Subject(s) - materials science , scanning electron microscope , graphite , fourier transform infrared spectroscopy , self assembly , crystallography , nuclear chemistry , chemical engineering , nanotechnology , chemistry , composite material , engineering
Preparation of silver nanoflowers (Ag NFs) was carried out through the self‐assembly process of diphenylalanine (FF) peptide on the graphite surface. Pencil graphite rods were used as a substrate for the self‐assembly process. A reduction reaction by hydrazine was employed in the synthesis procedure of the Ag NFs. scanning electron microscope, Fourier transform infrared spectroscopy (FT‐IR) spectroscopy and X‐ray diffraction (XRD) were employed to characterise the obtained Ag NFs. The morphological analysis of the Ag NFs revealed assemblies constructed by multiple sheet nanostructures designed as flower petals and positioned in the form of 3D semi‐spherical arrangements. The successful synthesis of Ag NFs was confirmed by FT‐IR characteristic bands of FF and Ag components. The cubic lattice structure of the Ag NFs was revealed by XRD. Standard Kirby–Bauer disk diffusion tests using Gram‐positive and Gram‐negative bacterial strains exhibited the promising antibacterial performance of the Ag NFs against all of the tested bacterial species.