Smartphone-assisted fluorescent film based on the Flu grafted on Eu-MOF for real-time monitoring of fresh-cut fruit freshness
文献类型： 外文期刊
作者： Zhang, Zhepeng 1 ; Gao, Mingjie 1 ; Zhang, Liang 2 ; Li, Jiangbo 3 ; El-Seedi, Hesham R. 4 ; Zou, Xiaobo 1 ; Guo, Zhiming 1 ;
作者机构： 1.Jiangsu Univ, Sch Food & Biol Engn, China Light Ind Key Lab Food Intelligent Detect &, Zhenjiang 212013, Peoples R China
2.Wencheng Inst Modern Agr & Healthcare Ind, Wenzhou 325300, Peoples R China
3.Beijing Acad Agr & Forestry Sci, Intelligent Equipment Res Ctr, Beijing 100097, Peoples R China
4.Jiangsu Univ, Int Joint Res Lab Intelligent Agr & Agriprod Proc, Zhenjiang 212013, Peoples R China
5.Uppsala Univ, Dept Pharmaceut Biosci, Pharmacognosy Grp, BMC, Box 591, S-E75124 Uppsala, Sweden
关键词： Metal-organic framework; Grafted materials; Multifunctional filler; Fluorescence film; Fresh-cut fruits; Smartphone application
期刊名称：BIOSENSORS & BIOELECTRONICS （ 影响因子：10.5； 五年影响因子：10.1 ）
ISSN： 0956-5663
年卷期： 2025 年 277 卷
页码：
收录情况： SCI
摘要： Indicator migration within intelligent packaging systems can compromise the safety of the food matrix and the accuracy of coloration, particularly in high humidity packaging. Herein, Eu-BDC-NH2-Fluorescein (MOF-Flu) nanofillers were synthesized by the amide coupling, followed by an analysis of their structural, morphological characteristics, and optical response. The MOF-Flu and microcrystalline cellulose (MCC) nanomaterials were embedded into a sodium carboxymethyl cellulose (CMC-Na) substrate to fabricate enhanced packaging films. Several beneficial properties, including superior hydrophobicity and water resistance, improved mechanical properties, and enhanced thermal stability, were observed for CMC-Na/MOF-Flu compared to CMC-Na/MCC. Additionally, the MOF-Flu composite film exhibited improved UV-visible barrier properties, exceptional resistance to pigment migration, and good time-temperature stability. Finally, a significant linear correlation (R2 = 0.9938, LOD: 1.79-2.90 N/cm2, RSD: 2.16%, recovery: 103.93%) was established using a smartphone application to display the relationship between the SRGB-values of MOFs-based films and hardness of fresh-cut Narcissus mangoes at 4 degrees C. The digital sensing platform utilizing smartphones has pioneered a powerful approach for the on-site rapid quantitative assessment of fresh-cut fruit freshness, significantly enhancing the precision and convenience of intelligent packaging. Furthermore, the developed indicator material MOF-Flu can accurately and non-destructively monitor changes of fruit freshness, alleviating concerns regarding dye contamination during migration.
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