在这里,第一次,我们报告了一种类似纸的生物质,蛋壳膜(ESM),作为制造比色传感器(E-Cot)的合适平台。绿色乙醇提取物,姜黄素(CUR),用作用ESM涂覆的传感材料。本E-Cot在对鸡腐败的实时监测中有效地改变了其颜色(黄色到红色)。E-Cot由于其固有的半渗透特性而表现出阻隔性能。有趣的是,E-Cot显示出总色差值的显著变化(ΔE,0天-0.0-39.6,1天后-39.6-42.1,2天后-42.1-53.6,3天后-53.6-60.1,4天后-60.1-66.3,肉眼可检测)实时监测鸡肉新鲜度。此外,目前的E-Cot智能比色传感器是可逆的,随着pH值的变化,传感器可以重复使用。Further,通过水接触角分析(WCA,接触角为101.21±8.39)。良好的抗菌,屏障,还发现了本E-Cot的光学性质。由于绿色等优点,高效,成本效益高,可生物降解,可重复使用,可持续,和简单的准备,我们相信现在的E-Cot将是一个更具吸引力的候选人。
Herein, for the very first time, we report a paper-like biomass, eggshell membrane (ESM), as a suitable platform for the fabrication of a colorimetric sensor (E-Cot). Green ethanolic extract, curcumin (CUR), was used as a sensing material to coat with the ESM. The present E-Cot effectively changed its color (yellow to red) in the real-time monitoring for chicken spoilage. The E-Cot exhibits barrier properties due to its inherent semi-permeability characteristics. Interestingly, the E-Cot showed a significant change in total color difference value (ΔE, 0 days - 0.0-39.6, after 1 day - 39.6-42.1, after 2 days - 42.1-53.6, after 3 days- 53.6-60.1, and after 4 days - 60.1-66.3, detectable by the naked eye) in the real-time monitoring for chicken freshness. In addition, the present E-Cot smart colorimetric sensor is reversible with a change in pH, and the sensor can be reused. Further, the hydrophobic nature of the E-Cot was confirmed by water contact angle analysis (WCA, contact angle of 101.21 ± 8.39). Good antibacterial, barrier, and optical properties of the present E-Cot were also found. Owing to the advantages such as green, efficient, cost-effective, biodegradable, reusable, sustainable, and simple preparation, we believe that the present E-Cot would be a more attractive candidate.