A highly selective Hg²⁺ colorimetric sensor and antimicrobial agent based on green synthesized silver nanoparticles using Equisetum diffusum extract

Abstract

E. diffusum extract-capped AgNPs were synthesized using a simple method based on sunlight irradiation. The functionalized AgNPs revealed rapid naked-eye detection and remarkable selectivity to Hg2+ as well as promising antibacterial effect.

Characterization and Photocatalytic and Antibacterial Properties of Ag- and TiOx-Based (x = 2, 3) Composite Nanomaterials under UV Irradiation

“…Jabbar et al investigated the antibacterial efficacy of silver nanoparticles functionalized with Equisetum diffusum (horsetail) extract against both Gram-positive and Gram-negative bacterial strains. Specifically, the nanoparticles elicited inhibition zones measuring 18 mm and 10 mm for Listeria monocytogenes and Escherichia coli strains, respectively [85]. Moreover, Quintero-Quiroz et al assessed the antibacterial activity of AgNPs synthesized via a chemical method, employing NaBH 4 as a reducing agent for silver [86].…”

Review of Gold Nanoparticles in Surface Plasmon-Coupled Emission Technology: Effect of Shape, Hollow Nanostructures, Nano-Assembly, Metal–Dielectric and Heterometallic Nanohybrids

“…To further boost the performance of fluorescence-based biosensing technologies, plasmonic nanoparticles (NPs), nanohybrids and their nanocomposites with dielectric nanomaterials are extensively researched [ 4 , 5 , 6 ]. The utilization of plasmonic nanomaterials to augment the signal intensity from weakly fluorescent biomolecules and monitoring the shifts in the plasmonic resonant modes induced by several physico-chemical interactions in nano-dimensions and single-molecular limits has been explored [ 7 , 8 , 9 , 10 , 11 ]. The ability of the plasmonic nanomaterials to generate high-field intensity in their vicinity has attracted researchers from different fields [ 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 ].…”

Solvent-Induced Lignin Conformation Changes Affect Synthesis and Antibacterial Performance of Silver Nanoparticle

“…To address these challenges, there is a pressing need to develop alternative antibacterial agents that are not only effective but also safe for human use and environmentally sustainable [ 16 ]. The use of plant extracts for the synthesis of AgNPs has emerged as a green alternative approach [ 17 ]. One promising avenue for exploration is the utilization of lignin, a complex biopolymer abundant in plant cell walls, for the synthesis of antibacterial materials [ 18 ].…”