Cost-effective and sensitive anthocyanin-based paper sensors for rapid ammonia detection in aqueous solutions.

ABSTRACT: In this work, we developed a cost-effective and environmentally friendly anthocyanin-based paper sensor with high sensitivity and optical visibility for the rapid detection of ammonia in aqueous solutions. The detection principle is based on a color change upon ammonia exposure to an anthocyanin-containing paper, which can be recorded simply via a smartphone. The paper sensors were fabricated by extracting anthocyanin from different sources (i.e., red cabbage, blueberry, and blackberry) and immersing pre-cut paper in anthocyanin extracts. Anthocyanin was extracted from different sources into water and aqueous ethanolic solution (80%) using solid-liquid extraction (SLE) and sonication assisted extraction (SAE) methods. The sensor sensitivity and optical visibility were improve

SUBMITTER: Haq SU 

PROVIDER: S-EPMC9036918 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature