Smartphone-assisted colorimetric and near-infrared ratiometric fluorescent sensor for on-spot detection of H2O2 in food samples

被引：45
作者：
Chen, Xiaodong [1 ,2 ]
He, Dan [1 ,2 ]
Shentu, Jiaye [1 ,2 ]
Yang, Sanxiu [1 ,2 ]
Yang, Yunfei [1 ,2 ]
Wang, Yuqing [1 ,2 ]
Zhang, Rumeng [1 ,2 ]
Wang, Kun [1 ,2 ]
Qian, Jing [1 ,2 ]
Long, Lingliang [1 ,2 ]
机构：
[1] Jiangsu Univ, Key Lab Modern Agr Equipment & Technol, Minist Educ, Zhenjiang 212013, Jiangsu, Peoples R China
[2] Jiangsu Univ, Sch Chem & Chem Engn, Zhenjiang 212013, Jiangsu, Peoples R China
来源：
CHEMICAL ENGINEERING JOURNAL | 2023年 / 472卷
基金：
中国国家自然科学基金;
关键词：
Fluorescent sensor; Hydrogen peroxide; Food samples; Near-infrared fluorescence; Portable detection device; HYDROGEN-PEROXIDE; POTATO; MITOCHONDRIA;
D O I：
10.1016/j.cej.2023.144900
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Hydrogen peroxide (H2O2) is closely involved in the fields of food industry. Excessive residual H2O2 in food samples will exert adverse effects on the nutritional value of foods and pose great threat to the health of con-sumer. Development of a reliable analytical method for on-spot quantitative detection of H2O2 levels in food is of urgent necessity. Here, we presented a colorimetric and near-infrared (NIR) ratiometric fluorescent sensor for on -spot quantitative detection of H2O2 in various food samples. The sensor displayed colorimetric and NIR ratio-metric fluorescence dual-signal response to H2O2 with high selectivity and sensitivity. The limits of detection (LOD) was measured to be 23.08 nM (S / N = 3). The sensor has been applied for detecting exogenous and endogenous H2O2 in living cells by fluorescence imaging. Also, the changes of H2O2 level in potato tissue infected by phytophthora infestans has been monitored. Particularly, to achieve on-spot quantitative detection of H2O2 in food samples, a portable and field deployable detection device was rationally developed. The sensor, together with portable detection devices and smartphones, performed on-spot quantitative detection of H2O2 in chicken wings and milk through dual signal outputs of colorimetry and fluorescence. We anticipate that the analytical method developed here could be served as convenient tool for on-spot quantitative detection of H2O2 in different foods in near future.
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页数：7
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