Salt plays a crucial role in food processing and consumption,and the rapid detection of chloride ions in food and feed has great significance for practical applications.In this work,Ag-based nanomaterials were deposit...Salt plays a crucial role in food processing and consumption,and the rapid detection of chloride ions in food and feed has great significance for practical applications.In this work,Ag-based nanomaterials were deposited on the surface of a flexible integrated electrochemical sensor for the detection of Cl-in food.In order to enhance the detection performance,a unique needle-tip structure was formed by manipulating the electro-engraving process during the electrodeposition growth.Theoretical calculations and electrochemical investigations have demonstrated that the dendrimer’s rich tip structure significantly enhanced its electrochemical performance.A sensitive and flexible integrated electrochemical sensor was creatively developed for the detection of Cl-using needletip effect-promoted Ag micro dendrimers.The sensor achieved quantitative detection of Cl-over a dynamic range of 10.0μM–100.0 mM,with a low limit of detection of 0.148μM.The flexible electrochemical sensor proposed in this work exhibited good repeatability,selectivity and recoveries in real food samples.展开更多
基金financially supported by Key Research and Development Program in Hubei Province(Grant No.2023BBB042)the Fundamental Research Funds for the Central Universities(Grant No.2662023GXQD001)Key Laboratory of on Site Processing Equipment for Agricultural Products,Ministry of Agriculture and Rural Affairs(Grant No.2016NYZD2202).
文摘Salt plays a crucial role in food processing and consumption,and the rapid detection of chloride ions in food and feed has great significance for practical applications.In this work,Ag-based nanomaterials were deposited on the surface of a flexible integrated electrochemical sensor for the detection of Cl-in food.In order to enhance the detection performance,a unique needle-tip structure was formed by manipulating the electro-engraving process during the electrodeposition growth.Theoretical calculations and electrochemical investigations have demonstrated that the dendrimer’s rich tip structure significantly enhanced its electrochemical performance.A sensitive and flexible integrated electrochemical sensor was creatively developed for the detection of Cl-using needletip effect-promoted Ag micro dendrimers.The sensor achieved quantitative detection of Cl-over a dynamic range of 10.0μM–100.0 mM,with a low limit of detection of 0.148μM.The flexible electrochemical sensor proposed in this work exhibited good repeatability,selectivity and recoveries in real food samples.
