A multicolor fluorescent sensor array based on curcumin and its analogs as a shrimp freshness indicator

Cai，Shaoyong1; Song，Guangjie1; Zhang，Guofan1; Wang，Lei1; Jian，Tianlan1; Xu，Jiatong1; Su，Fengyu2,3; Tian，Yanqing1

2022-09-15

10.1016/j.snb.2022.132153

SENSORS AND ACTUATORS B-CHEMICAL   影响因子和分区

0925-4005

0925-4005

The colorimetric sensing label is a simple, cost-effective, and user-friendly tool for monitoring ammonia vapor (NH) concentrations in food packaging. Numerous natural dyes present excellent NH-sensitivity, but their low solubility in water limits their food-related applications. Herein, a special cellulose-based ink system with an EtOH/water mixture as solvent was proposed to improve the dispersion of non-aqueous dyes (curcumin and its analogs (indexed as Bur and Bur-BF)). Subsequently, three sensing labels containing different dyes were prepared by simple screen-printing after optimizing the inks' rheological properties. Benefiting from the different intramolecular charge-transfer (ICT) behaviors of dyes, each sensing label exhibited various characteristics in terms of the optical property, NH-sensitivity, and fluorescent color-changing routes upon exposure to 0–50 ppm NH. Importantly, all sensing labels showed excellent stability in environments with various relative humidity and temperature. Therefore, three sensing labels were used to construct a multicolor fluorescent sensor array, which aimed to visually monitor the freshness of shrimp for consumers.

Ammonia Curcumin analogs Fluorescence Freshness indicator Multicolor

SCI ; EI

英语

第一 ; 通讯

National Natural Science Foundation of China[21774054];Southern University of Science and Technology[Y01256114];

Chemistry ; Electrochemistry ; Instruments & Instrumentation

Chemistry, Analytical ; Electrochemistry ; Instruments & Instrumentation

WOS:000811959500003

ELSEVIER SCIENCE SA

20222412208580

Ammonia ; Charge transfer ; Cost effectiveness ; Optical properties ; Screen printing

Light/Optics:741.1 ; Printing:745.1 ; Chemical Reactions:802.2 ; Inorganic Compounds:804.2 ; Industrial Economics:911.2

CHEMISTRY

2-s2.0-85131395887

Scopus

1.Department of Materials Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China
2.Academy of Advanced Interdisciplinary Studies,Southern University of Science and Technology,Shenzhen,No 1088 Xueyuan Blvd, Xili, Nanshan District,518055,China
3.Department of Electrical and Electronic Engineering,Southern University of Science and Technology,Shenzhen,518055,China

Cai，Shaoyong,Song，Guangjie,Zhang，Guofan,et al. A multicolor fluorescent sensor array based on curcumin and its analogs as a shrimp freshness indicator[J]. SENSORS AND ACTUATORS B-CHEMICAL,2022,367.

Cai，Shaoyong.,Song，Guangjie.,Zhang，Guofan.,Wang，Lei.,Jian，Tianlan.,...&Tian，Yanqing.(2022).A multicolor fluorescent sensor array based on curcumin and its analogs as a shrimp freshness indicator.SENSORS AND ACTUATORS B-CHEMICAL,367.

Cai，Shaoyong,et al."A multicolor fluorescent sensor array based on curcumin and its analogs as a shrimp freshness indicator".SENSORS AND ACTUATORS B-CHEMICAL 367(2022).