Highly selective and flexible silver nanoparticles-based paper sensor for on-site colorimetric detection of paraquat pesticide.

ABSTRACT: Paper-based sensors or paper-based analytical devices (PADs) have recently emerged as the cost-efficient, and portable, on-site detection tools for various biological and environmental analytes. However, paper-based sensors often suffer from poor selectivity. Here, a single-step paper-based flexible sensor platform has been developed for the on-site detection of paraquat (PQ) pesticide in real samples, utilizing chitosan and citrate-capped silver nanoparticles integrated with a flexible paper. The nanocomposite paper film was thoroughly characterized using UV-visible spectroscopy, Fourier-transform infrared spectroscopy (FTIR), and transmission electron microscopy (TEM). The composite paper platform demonstrated a color change with a reaction time within a few minutes (6-7 min) in the pres

SUBMITTER: Bhandari S 

PROVIDER: S-EPMC11386213 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature