On‐site rapid detection of Listeria monocytogenes in dairy products using smartphone‐integrated device‐assisted ratiometric fluorescent sensors

• DOI: 10.1111/1471-0307.13045
• Publication Date: 2024-02-15T09:56:19Z
• Authors: Hui Li; Yuwei Ren; Rui Jiao; Xiyan Zhang; Wenhua Zhao; Hanfang Chen; Danfeng Zhang; Yizhong Shen; Changqing Zhu; Yingwang Ye
• Keywords: 0404 agricultural biotechnology; 04 agricultural and veterinary sciences

The contamination of Listeria monocytogenes ( L. ) in dairy products poses a significant risk to human health. It is urgent develop on‐site rapid strategy reduce associated threats. We employed carbon dots (CDs) and silicon nanoparticles (SiNPs) as energy donors acceptors respectively. CDs SiNPs were functionalised with vancomycin aptamers correspondingly, leading the establishment ratiometric fluorescent sensor. With portable smartphone‐integrated device, ratios blue/green values from colour images depended on concentrations for quantification. sensors demonstrated monitoring within 30 min.