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Wei Y, Wang X, Li M, Yu F, Xu R, Qin G, Li Y. Novel electrochemical sensing platform basing on di-functional stimuli-responsive imprinted polymers for simultaneous extraction and determination of metronidazole. Anal Chim Acta 2023; 1260:341219. [PMID: 37121660 DOI: 10.1016/j.aca.2023.341219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 04/08/2023] [Accepted: 04/12/2023] [Indexed: 05/02/2023]
Abstract
A novel magnetic-controlled electrochemical sensor has been fabricated by combined photo-responsive surface molecular imprinted polymers (P-SMIPs) and electrochemical sensor. In particular, the P-SMIPs were obtained by living radical polymerization of photo-responsive functional monomer onto the magnetic Fe3O4 modified multi-walled carbon nanotubes nanocomposites. The magnetic glassy carbon electrode was introduced to make the anchoring and removal of P-SMIPs onto the magnetic-controlled glassy carbon electrode easy to manipulate. Driven by UV/vis light, the platform performs releasing and absorption of metronidazole basing on conformational variations of the photo-responsive monomer at the receptor sites part in the P-SMIPs. This process can be tested by the photo-responsive variations of metronidazole electrochemical signal. As the consequence, extracting of P-SMIPs sensor can be conveniently triggered by the controllable UV light intervention measure, leading to effectively improve in both analytes mass transfer rate to the receiving media and extraction efficiency. The experimental result indicated that the excellent recoveries of metronidazole were varied between 77.9% and 89.9% with RSDs ≤4.87% in the biological samples. Therefore, the P-SMIPs sensor shows satisfactory potential in reusable extractions that can be recycled several times with no significant loss of activity, and this utilization strategy can be extended to other analytes, achieving manifold applications of pharmaceutical and environmental.
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Affiliation(s)
- Yubo Wei
- School of Pharmaceutical Sciences and Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, Yunnan, 650500, People's Republic of China.
| | - Xin Wang
- School of Pharmaceutical Sciences and Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, Yunnan, 650500, People's Republic of China
| | - Meihong Li
- School of Pharmaceutical Sciences and Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, Yunnan, 650500, People's Republic of China
| | - Fang Yu
- School of Pharmaceutical Sciences and Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, Yunnan, 650500, People's Republic of China
| | - Ruoping Xu
- School of Pharmaceutical Sciences and Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, Yunnan, 650500, People's Republic of China
| | - Guiping Qin
- Faculty of Science, Kunming University of Science and Technology, 727 South Jingming Road, Chenggong District, Kunming, 650500, People's Republic of China.
| | - Yupeng Li
- School of Pharmaceutical Sciences and Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, Yunnan, 650500, People's Republic of China.
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A molecularly imprinted sensor based on thermo-responsive calcium alginate nanohydrogels for lysozyme detection. Colloid Polym Sci 2023. [DOI: 10.1007/s00396-023-05062-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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Editorial on Special Issue "Advances in Hydrogels". Gels 2022; 8:gels8120787. [PMID: 36547311 PMCID: PMC9777966 DOI: 10.3390/gels8120787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Accepted: 11/28/2022] [Indexed: 12/03/2022] Open
Abstract
Hydrogels are a class of soft materials with crosslinked network structures [...].
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Fabrication and photophysical assessment of quinoxaline based chemosensor: Selective determination of picric acid in hydrogel and aqueous medium. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119816] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Wang J, Li X, Zhang R, Fu B, Chen M, Ye M, Liu W, Xu J, Pan G, Zhang H. A molecularly imprinted antibiotic receptor on magnetic nanotubes for the detection and removal of environmental oxytetracycline. J Mater Chem B 2022; 10:6777-6783. [PMID: 35583296 DOI: 10.1039/d2tb00497f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The detection and elimination of antibiotic contaminants, such as oxytetracycline (OTC), a broad-spectrum tetracycline antibiotic, would be of help in efficient environmental monitoring, agriculture and food safety tests. Nevertheless, currently available methodologies, which mostly rely on the chromatographic separation of OTC, suffer from low sensitivity and complicated processes. Thus, we report here on the design and synthesis of a fluorescent sensor based on molecularly imprinted magnetic halloysite nanotubes (referred to as MHNTs@FMIPs) for the effective detection and purification of OTC in actual environmental samples. The fluorescence of the MHNTs@FMIPs was quenched obviously upon loading with OTC, covering a linear concentration range of 10-300 nM with a limit of detection (LOD) as low as 8.1 nM. The imprinting factor is 4.47, indicating an excellent specificity. Furthermore, the MHNTs@FMIPs can be applied to the quantitative detection of OTC (5 cycles of 300 nM) in aquaculture wastewater and Yangtze River water, demonstrating their immense application potential.
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Affiliation(s)
- Jixiang Wang
- Sino-European School of Technology of Shanghai University, Shanghai University, CN-200444, Shanghai, P. R. China. .,Pharmaceutical Sciences Laboratory, Åbo Akademi University, FI-20520, Turku, Finland. .,Turku Bioscience Centre, University of Turku and Åbo Akademi University, FI-20520, Turku, Finland
| | - Xiaolei Li
- Sino-European School of Technology of Shanghai University, Shanghai University, CN-200444, Shanghai, P. R. China.
| | - Rong Zhang
- Department of Interventional Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, CN-200233, Shanghai, China
| | - Bingjie Fu
- Sino-European School of Technology of Shanghai University, Shanghai University, CN-200444, Shanghai, P. R. China.
| | - Mingcan Chen
- Sino-European School of Technology of Shanghai University, Shanghai University, CN-200444, Shanghai, P. R. China.
| | - Mengxue Ye
- Sino-European School of Technology of Shanghai University, Shanghai University, CN-200444, Shanghai, P. R. China.
| | - Wanyu Liu
- Sino-European School of Technology of Shanghai University, Shanghai University, CN-200444, Shanghai, P. R. China.
| | - Jingjing Xu
- Sino-European School of Technology of Shanghai University, Shanghai University, CN-200444, Shanghai, P. R. China.
| | - Guoqing Pan
- Institute for Advanced Materials, School of Materials Science and Engineering, Jiangsu University, Zhenjiang, 212013, Jiangsu, China.
| | - Hongbo Zhang
- Pharmaceutical Sciences Laboratory, Åbo Akademi University, FI-20520, Turku, Finland. .,Turku Bioscience Centre, University of Turku and Åbo Akademi University, FI-20520, Turku, Finland
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Self-cleaning electrochemical protein-imprinting biosensor with a dual-driven switchable affinity for sensing bovine serum albumin. Talanta 2022; 237:122893. [PMID: 34736709 DOI: 10.1016/j.talanta.2021.122893] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Revised: 09/11/2021] [Accepted: 09/18/2021] [Indexed: 01/31/2023]
Abstract
A facile, universal and highly efficient approach for producing a self-cleaning electrochemical protein-imprinting biosensor based on dual stimuli-responsive memory hydrogels via free-radical polymerisation is described. As confirmed by static contact angle and scanning electron microscopy results, the imprinted hydrogels exhibited reversible conformational changes after being simulated by an external electric field and temperature. By exploring the properties of imprinted hydrogels for sensing applications, the electrochemical protein-imprinting biosensor was originally fabricated on a glassy carbon electrode using the drop-casting method. Because of the trigger gates of the temperature and electric field, the biosensor demonstrated excellent self-cleaning behaviours compared with other corresponding electric-field or thermo-responsive imprinting biosensors. Moreover, the prepared biosensor exhibited satisfactory selectivity, good biocompatibility, comparable limits of detection and linearity ranges as well as acceptable stability toward bovine serum albumin. Consequently, the biosensor was successfully employed to simultaneously enrich, detect and extract bovine serum albumin from complex biological samples; the process was dynamic, controllable and harmless to the template under the dual external stimuli. Thus, the proposed biosensor exhibited considerable potential in controlled drug/chemical delivery and smart sensing for bioanalyses involving dual stimuli-responsive behaviours.
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Sha L, Zhu M, Lin F, Yu X, Dong L, Wu L, Ding R, Wu S, Xu J. Stable DNA Aptamer-Metal-Organic Framework as Horseradish Peroxidase Mimic for Ultra-Sensitive Detection of Carcinoembryonic Antigen in Serum. Gels 2021; 7:181. [PMID: 34842664 PMCID: PMC8628696 DOI: 10.3390/gels7040181] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 10/09/2021] [Accepted: 10/19/2021] [Indexed: 12/12/2022] Open
Abstract
Carcinoembryonic antigen (CEA) is an important broad-spectrum tumor marker. For CEA detection, a novel type of metal-organic framework (MOF) was prepared by grafting CEA aptamer-incorporated DNA tetrahedral (TDN) nanostructures into PCN-222 (Fe)-based MOF (referred as CEAapt-TDN-MOF colloid nanorods). The synthesized CEAapt-TDN-MOF is a very stable detection system due to the vertex phosphorylated TDN structure at the interface, possessing a one-year shelf-life. Moreover, it exhibits a significant horseradish peroxidase mimicking activity due to the iron porphyrin ring, which leads to a colorimetric reaction upon binding toward antibody-captured CEA. Using this method, we successfully achieved the highly specific and ultra-sensitive detection of CEA with a limit of detection as low as 3.3 pg/mL. In addition, this method can detect and analyze the target proteins in clinical serum samples, effectively identify the difference between normal individuals and patients with colon cancer, and provide a new method for the clinical diagnosis of tumors, demonstrating a great application potential.
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Affiliation(s)
- Lingjun Sha
- Center for Molecular Recognition and Biosensing, School of Life Sciences, Shanghai University, Shanghai 200444, China; (L.S.); (X.Y.); (L.D.)
| | - Mingcong Zhu
- Sino-European School of Technology of Shanghai University, Shanghai University, Shanghai 200444, China; (M.Z.); (L.W.); (R.D.)
| | - Fuqing Lin
- School of Basic Medical Sciences, Fudan University, Shanghai 200433, China;
| | - Xiaomeng Yu
- Center for Molecular Recognition and Biosensing, School of Life Sciences, Shanghai University, Shanghai 200444, China; (L.S.); (X.Y.); (L.D.)
| | - Langjian Dong
- Center for Molecular Recognition and Biosensing, School of Life Sciences, Shanghai University, Shanghai 200444, China; (L.S.); (X.Y.); (L.D.)
| | - Licheng Wu
- Sino-European School of Technology of Shanghai University, Shanghai University, Shanghai 200444, China; (M.Z.); (L.W.); (R.D.)
| | - Rong Ding
- Sino-European School of Technology of Shanghai University, Shanghai University, Shanghai 200444, China; (M.Z.); (L.W.); (R.D.)
| | - Shuai Wu
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing 210023, China
| | - Jingjing Xu
- Center for Molecular Recognition and Biosensing, School of Life Sciences, Shanghai University, Shanghai 200444, China; (L.S.); (X.Y.); (L.D.)
- Sino-European School of Technology of Shanghai University, Shanghai University, Shanghai 200444, China; (M.Z.); (L.W.); (R.D.)
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Fu Z, Li M, Li Y, Zhang Z, Wang D, Wang C, Li J. Preparation of Agarose Fluorescent Hydrogel Inserted by POSS and Its Application for the Identification and Adsorption of Fe 3. Gels 2021; 7:173. [PMID: 34698197 PMCID: PMC8544435 DOI: 10.3390/gels7040173] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 10/14/2021] [Accepted: 10/14/2021] [Indexed: 12/23/2022] Open
Abstract
After entering in water, Fe3+ is enriched in the human body and along the food chain, causing chronic poisoning and irreversible harm to human health. In order to solve this problem, we synthesized citric acid POSS (CAP) from aminopropyl POSS (OAP) and citric acid. Then, we synthesized fluorescent hydrogels (CAP-agarose hydrogel, CAHG) with CAP and agarose. The luminescence mechanism of CAP was investigated by theoretical calculation. CAP plays a dual role in composite hydrogels: one is to give the gels good fluorescence properties and detect Fe3+; the second is that the surface of CAP has a large content of carbonyl and amide groups, so it can coordinate with Fe3+ to enhance the adsorption properties of hydrogels. The experimental results show that the lowest Fe3+ concentration that CAHG can detect is 5 μmol/L, and the adsorption capacity for Fe3+ is about 26.75 mg/g. In a certain range, the fluorescence intensity of CAHG had an exponential relation with Fe3+ concentration, which is expected to be applied to fluorescence sensors. Even at a lower concentration, CAHG can effectively remove Fe3+ from the solution. The prepared fluorescent hydrogel has great potential in the field of fluorescent probes, fluorescent sensors, and ion adsorption. Besides, CAHG can be used as photothermal material after adsorbing Fe3+, allowing for material recycling and reducing material waste.
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Affiliation(s)
- Zhengquan Fu
- Key Laboratory of Bio-Based Material Science and Technology (Ministry of Education), Northeast Forestry University, Harbin 150040, China; (Z.F.); (M.L.); (Y.L.); (Z.Z.); (C.W.); (J.L.)
- Engineering Research Center of Advanced Wooden Materials (Ministry of Education), Northeast Forestry University, Harbin 150040, China
- Collage of Material Science & Engineering, Northeast Forestry University, Harbin 150040, China
| | - Ming Li
- Key Laboratory of Bio-Based Material Science and Technology (Ministry of Education), Northeast Forestry University, Harbin 150040, China; (Z.F.); (M.L.); (Y.L.); (Z.Z.); (C.W.); (J.L.)
- Engineering Research Center of Advanced Wooden Materials (Ministry of Education), Northeast Forestry University, Harbin 150040, China
- Collage of Material Science & Engineering, Northeast Forestry University, Harbin 150040, China
| | - Yuanhang Li
- Key Laboratory of Bio-Based Material Science and Technology (Ministry of Education), Northeast Forestry University, Harbin 150040, China; (Z.F.); (M.L.); (Y.L.); (Z.Z.); (C.W.); (J.L.)
- Engineering Research Center of Advanced Wooden Materials (Ministry of Education), Northeast Forestry University, Harbin 150040, China
- Collage of Material Science & Engineering, Northeast Forestry University, Harbin 150040, China
| | - Zhiyuan Zhang
- Key Laboratory of Bio-Based Material Science and Technology (Ministry of Education), Northeast Forestry University, Harbin 150040, China; (Z.F.); (M.L.); (Y.L.); (Z.Z.); (C.W.); (J.L.)
- Engineering Research Center of Advanced Wooden Materials (Ministry of Education), Northeast Forestry University, Harbin 150040, China
- Collage of Material Science & Engineering, Northeast Forestry University, Harbin 150040, China
| | - Di Wang
- Key Laboratory of Bio-Based Material Science and Technology (Ministry of Education), Northeast Forestry University, Harbin 150040, China; (Z.F.); (M.L.); (Y.L.); (Z.Z.); (C.W.); (J.L.)
- Engineering Research Center of Advanced Wooden Materials (Ministry of Education), Northeast Forestry University, Harbin 150040, China
- Collage of Material Science & Engineering, Northeast Forestry University, Harbin 150040, China
| | - Chengyu Wang
- Key Laboratory of Bio-Based Material Science and Technology (Ministry of Education), Northeast Forestry University, Harbin 150040, China; (Z.F.); (M.L.); (Y.L.); (Z.Z.); (C.W.); (J.L.)
- Engineering Research Center of Advanced Wooden Materials (Ministry of Education), Northeast Forestry University, Harbin 150040, China
- Collage of Material Science & Engineering, Northeast Forestry University, Harbin 150040, China
| | - Jian Li
- Key Laboratory of Bio-Based Material Science and Technology (Ministry of Education), Northeast Forestry University, Harbin 150040, China; (Z.F.); (M.L.); (Y.L.); (Z.Z.); (C.W.); (J.L.)
- Engineering Research Center of Advanced Wooden Materials (Ministry of Education), Northeast Forestry University, Harbin 150040, China
- Collage of Material Science & Engineering, Northeast Forestry University, Harbin 150040, China
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