On-site colorimetric detection of Salmonella typhimurium

ARTICLE OPEN On-site colorimetric detection of Salmonella typhimurium Shengnan Wei1 , Zhenyue Su 1 , Xiangong Bu 1 , Xuening Shi 1 , Bo Pang 1 , Liang Zhang 1 , Juan Li1 ✉ and Chao Zhao 1 ✉ Rapid qualitative and quantitative detection of Salmonella typhimurium (S. typhimurium) takes an important role in ensuring food safety. Herein, a colorimetric assay aptasensor for S. typhimurium utilizing intrinsic peroxidase-like activity of gold nanoparticles embedded spherical covalent organic framework...