数字农科院2.0

Self-adhesive inspired solid-state fluorescence-sensor for in-situ visual monitoring of high-protein foods

文献类型： 外文期刊

作者： Yuxiao Hu;Changyong Cai;Shengyi Dong;Zhijian Tan

作者机构：

关键词： （0-2-2）Adhesion;Fluorescence enhancement;Food safety;Thioctic acid;Visual monitoring

期刊名称： Chemical Engineering Journal

ISSN： 1385-8947

年卷期： 2025 年 525 卷

页码：

收录情况： SCIE（2025版） ; ; EI（2025版）

摘要： Developing smart monitoring systems that can securely adhere to diverse packaging surfaces and maintain stability under high-humidity conditions remains challenging. Herein, we designed a self-adhesive, environmentally tolerant, and ammonia-responsive fluorescent sensor [Poly(T/P-F)5/1] prepared by a facile one-step thermo-press strategy. This uniquely engineered molecular design enabled the sensor to adhere firmly to diverse packaging substrates without additional adhesives. The molecular dynamics simulations simultaneously revealed the mechanism of this phenomenon. Furthermore, Poly(T/P-F)5/1 maintained good adhesion and stable sensing performance even under harsh storage environments (e.g., high humidity). More notably, Poly(T/P-F)5/1 exhibited excellent color responsiveness to spoilage-induced bioamines. Moreover, the incorporation of paeoniflorin significantly enhanced the sensitivity of Poly(T/P-F)5/1. The mechanism of fluorescence enhancement was revealed via experiments and molecular orbital theory calculations. Eventually, Poly(T/P-F)5/1 was successfully applied for internal and external freshness grading monitoring of shrimp, fish, beef, and pork. This work presents a novel and efficient strategy for in-situ visual monitoring of high-protein foods.

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