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Shi Y, Hu K, Mei L, Chao L, Wu M, Chen Z, Wu X, Qiao J, Zhu P, Miao M, Zhang S. Platforms of graphene/MXene heterostructure for electrochemical monitoring of rutin in drug and Tartary buckwheat tea. Talanta 2024; 270:125548. [PMID: 38104427 DOI: 10.1016/j.talanta.2023.125548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 12/07/2023] [Accepted: 12/11/2023] [Indexed: 12/19/2023]
Abstract
The use of two-dimensional heterostructure composite as electrode modification material has become a new strategy to improve the electrocatalytic activity and electroactive sites of electrochemical sensor. Herein, a soluble heterostructure, namely rGO-PSS@MXene, was designed and synthesized by integrating poly (sodium p-styrenesulfonate)-functionalized reduced graphene oxide into MXene nanosheets via ultrasonic method. The interactive heterostructure can effectively alleviate the self-stacking of MXene and rGO, endowing them with superior electron transfer capacity and large specific surface area, thereby producing prominent synergistic electrocatalytic effect towards rutin. In addition, the excellent enrichment effect of rGO-PSS@MXene for rutin also plays an important role through the electrostatic and π-π stacking interactions. The electrochemical characteristics of rutin on the sensor were examined in detail and a sensitive sensing method was proposed. Under optimized conditions, the method showed satisfactory linear relationship for rutin in the concentration range of 0.005-10.0 μM, with limit of detection of 1.8 nM (S/N = 3). The quantitative validation results in herbal medicine and commercial Tartary buckwheat tea were highly consistent with the labeled quantity and the results of HPLC determination, respectively, suggesting the sensor possessed excellent selectivity and accuracy. This proposed strategy for rutin determination is expected to expand the application of MXene heterostructure in electrochemical sensors, and is envisioned as a promising candidate for quality monitoring of drugs and foods.
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Affiliation(s)
- Yanmei Shi
- Academy of Traditional Chinese Medicine, Henan University of Chinese Medicine, Zhengzhou, 450001, PR China; People's Hospital of Henan University of Chinese Medicine/Zhengzhou People's Hospital, Zhengzhou, Henan, 450003, PR China
| | - Kai Hu
- Academy of Traditional Chinese Medicine, Henan University of Chinese Medicine, Zhengzhou, 450001, PR China
| | - Lin Mei
- School of Materials and Chemical Engineering, Zhongyuan University of Technology, Zhengzhou, 450007, PR China.
| | - Liqin Chao
- Academy of Traditional Chinese Medicine, Henan University of Chinese Medicine, Zhengzhou, 450001, PR China
| | - Mingxia Wu
- Department of Medicine, Henan University of Chinese Medicine, Zhengzhou, 450001, PR China
| | - Zhihong Chen
- Academy of Traditional Chinese Medicine, Henan University of Chinese Medicine, Zhengzhou, 450001, PR China
| | - Xiangxiang Wu
- Academy of Traditional Chinese Medicine, Henan University of Chinese Medicine, Zhengzhou, 450001, PR China
| | - Jingyi Qiao
- Academy of Traditional Chinese Medicine, Henan University of Chinese Medicine, Zhengzhou, 450001, PR China
| | - Pingsheng Zhu
- College of Traditional Chinese Medicine, Henan University of Chinese Medicine, Zhengzhou, 450001, PR China
| | - Mingsan Miao
- Academy of Traditional Chinese Medicine, Henan University of Chinese Medicine, Zhengzhou, 450001, PR China.
| | - Sisen Zhang
- People's Hospital of Henan University of Chinese Medicine/Zhengzhou People's Hospital, Zhengzhou, Henan, 450003, PR China.
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Peng LX, Zou L, Wang JB, Zhao JL, Xiang DB, Zhao G. Flavonoids, Antioxidant Activity and Aroma Compounds Analysis from Different Kinds of Tartary Buckwheat Tea. Indian J Pharm Sci 2016; 77:661-7. [PMID: 26997692 PMCID: PMC4778224 DOI: 10.4103/0250-474x.174972] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
The rutin, quercetin concentrations, antioxidant activity, and aroma compounds in different commercial tartary buckwheat tea were analyzed in our study. Results revealed that the materials and the processing protocol affected the chemical composition and activity of tartary buckwheat tea. Rutin and quercetin concentrations, antioxidant activity were significantly different in various kinds of tartary buckwheat tea, where the whole bran tea and the whole plant tea had the lower rutin, but higher quercetin concentrations and higher antioxidant activity. The whole embryo tea had the converse results. There was strong correlation between quercetin concentration and antioxidant activity (r>0.98, P<0.05). Meanwhile, Twenty eight different aroma compounds in tartary buckwheat tea were identified by gas chromatography-mass spectrometry. Those compounds were mainly composed of pyrazine, aldehydes, fatty acids and ketones. The main type of aroma compounds in different tartary buckwheat tea were similar, but their relative contents were different. The implications to the quality control of buckwheat tea were extensively discussed.
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Affiliation(s)
- L X Peng
- National Research and Development Center for Coarse Cereal Processing, Chengdu University, Chengdu 610 106, People's Republic of China
| | - L Zou
- National Research and Development Center for Coarse Cereal Processing, Chengdu University, Chengdu 610 106, People's Republic of China
| | - J B Wang
- School of Bioengineering, Xihua University, Chengdu 610 039, People's Republic of China
| | - J L Zhao
- National Research and Development Center for Coarse Cereal Processing, Chengdu University, Chengdu 610 106, People's Republic of China
| | - D B Xiang
- National Research and Development Center for Coarse Cereal Processing, Chengdu University, Chengdu 610 106, People's Republic of China
| | - G Zhao
- National Research and Development Center for Coarse Cereal Processing, Chengdu University, Chengdu 610 106, People's Republic of China
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