Specific detection of tartaric acid chiral isomers based on centrosymmetric terahertz metamaterial sensors
Tartaric acid (C4H6O6) is a common food additive with two mutually symmetrical chiral carbons, which is a very important class of four-carbon organic chiral sources. L-, D-, DL-tartaric acids have different uses in food additives and pharmaceutical fields. Traditional detection methods, such as fluo...
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Elsevier
2025-01-01
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| Series: | Results in Physics |
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| author | Xujun Xu Zhen Sun Guocui Liu Jianjun Liu Yong Du |
| author_facet | Xujun Xu Zhen Sun Guocui Liu Jianjun Liu Yong Du |
| author_sort | Xujun Xu |
| collection | DOAJ |
| description | Tartaric acid (C4H6O6) is a common food additive with two mutually symmetrical chiral carbons, which is a very important class of four-carbon organic chiral sources. L-, D-, DL-tartaric acids have different uses in food additives and pharmaceutical fields. Traditional detection methods, such as fluorescence detection, have problems such as destructive and non-specific characters. Thus, the development of a simple, accurate, and rapid detection technique for tartaric acid chiral isomers (TACIs) is imminent. In this work, we designed a terahertz metamaterial sensor with central symmetry for detecting TACIs. Centrosymmetric metamaterial sensors based on aluminum and polyimide were simulated using computer simulation technology (CST) electromagnetic software. This metamaterial is composed of a trapezoidal structure with a hole and its rotation of 180 degrees, with three resonance peaks. The sensing properties of terahertz metamaterials and the slow light effect are further discussed. The minimum detection concentrations of D-tartaric acid and L-tartaric acid measured in the experiment were 0.002 g/ml and 0.001 g/ml respectively. In addition, theoretical simulations of the crystalline cells of TACIs were also calculated using the density functional theory. The terahertz absorption peak of the TACIs simulation results was obtained, and the data obtained by comparison with experimental measurements were basically the same. Experimental results indicate that the metamaterial designed in this article can distinguish small differences TACIs. |
| format | Article |
| id | doaj-art-fb893c7f195f4d59a119317f647ffe34 |
| institution | Kabale University |
| issn | 2211-3797 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
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| series | Results in Physics |
| spelling | doaj-art-fb893c7f195f4d59a119317f647ffe342025-01-18T05:04:32ZengElsevierResults in Physics2211-37972025-01-0168108090Specific detection of tartaric acid chiral isomers based on centrosymmetric terahertz metamaterial sensorsXujun Xu0Zhen Sun1Guocui Liu2Jianjun Liu3Yong Du4Center for Terahertz Research, China Jiliang University, Hangzhou, Zhejiang 310018, ChinaCenter for Terahertz Research, China Jiliang University, Hangzhou, Zhejiang 310018, ChinaCenter for Terahertz Research, China Jiliang University, Hangzhou, Zhejiang 310018, ChinaCenter for Terahertz Research, China Jiliang University, Hangzhou, Zhejiang 310018, ChinaCorresponding author.; Center for Terahertz Research, China Jiliang University, Hangzhou, Zhejiang 310018, ChinaTartaric acid (C4H6O6) is a common food additive with two mutually symmetrical chiral carbons, which is a very important class of four-carbon organic chiral sources. L-, D-, DL-tartaric acids have different uses in food additives and pharmaceutical fields. Traditional detection methods, such as fluorescence detection, have problems such as destructive and non-specific characters. Thus, the development of a simple, accurate, and rapid detection technique for tartaric acid chiral isomers (TACIs) is imminent. In this work, we designed a terahertz metamaterial sensor with central symmetry for detecting TACIs. Centrosymmetric metamaterial sensors based on aluminum and polyimide were simulated using computer simulation technology (CST) electromagnetic software. This metamaterial is composed of a trapezoidal structure with a hole and its rotation of 180 degrees, with three resonance peaks. The sensing properties of terahertz metamaterials and the slow light effect are further discussed. The minimum detection concentrations of D-tartaric acid and L-tartaric acid measured in the experiment were 0.002 g/ml and 0.001 g/ml respectively. In addition, theoretical simulations of the crystalline cells of TACIs were also calculated using the density functional theory. The terahertz absorption peak of the TACIs simulation results was obtained, and the data obtained by comparison with experimental measurements were basically the same. Experimental results indicate that the metamaterial designed in this article can distinguish small differences TACIs.http://www.sciencedirect.com/science/article/pii/S2211379724007757Metamaterial sensorsTerahertz spectroscopyTartaric acid chiral isomersSpecific detection |
| spellingShingle | Xujun Xu Zhen Sun Guocui Liu Jianjun Liu Yong Du Specific detection of tartaric acid chiral isomers based on centrosymmetric terahertz metamaterial sensors Results in Physics Metamaterial sensors Terahertz spectroscopy Tartaric acid chiral isomers Specific detection |
| title | Specific detection of tartaric acid chiral isomers based on centrosymmetric terahertz metamaterial sensors |
| title_full | Specific detection of tartaric acid chiral isomers based on centrosymmetric terahertz metamaterial sensors |
| title_fullStr | Specific detection of tartaric acid chiral isomers based on centrosymmetric terahertz metamaterial sensors |
| title_full_unstemmed | Specific detection of tartaric acid chiral isomers based on centrosymmetric terahertz metamaterial sensors |
| title_short | Specific detection of tartaric acid chiral isomers based on centrosymmetric terahertz metamaterial sensors |
| title_sort | specific detection of tartaric acid chiral isomers based on centrosymmetric terahertz metamaterial sensors |
| topic | Metamaterial sensors Terahertz spectroscopy Tartaric acid chiral isomers Specific detection |
| url | http://www.sciencedirect.com/science/article/pii/S2211379724007757 |
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