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Jiang ZQ, Zhang L, Lan CJ, Wang JP. Development of a Progesterone-Receptor-Based Pseudo-immunoassay for Multi-detection of Progestins in Milk and Studying Its Recognition Mechanism. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:17959-17967. [PMID: 37938156 DOI: 10.1021/acs.jafc.3c05890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2023]
Abstract
The residues of progestins in milk are dangerous to consumers, but an immunoassay capable of multi-determining progestins in milk has not been reported thus far. In this study, the ligand binding domain of the human progesterone receptor was expressed and its intermolecular interactions with the commonly used steroid hormones were studied. The docking results showed that the receptor fragment only recognized progestins and did not recognize other steroid hormones. Then, it was used as recognition material to develop a pseudo-direct competitive enzyme-linked immunosorbent assay for multi-determination of five progestins in milk. Because biotinylated horseradish peroxidase was combined with streptavidinated horseradish peroxidase to enhance the signal, the sensitivities for the five progestins (IC50 of 0.029-0.097 ng/mL) were improved 96-143-fold in comparison to the use of the conventional horseradish peroxidase signal system (IC50 of 3.0-12.5 ng/mL). This method showed negligible cross-reactivities to other steroid hormones, consistent with the docking results. This was the first paper developing a progesterone-receptor-based method for detection of progestins, and this method exhibited generally better performance than all of the previously reported immunoassays for progestins.
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Affiliation(s)
- Zu Qiang Jiang
- College of Veterinary Medicine, Hebei Agricultural University, Baoding, Hebei 071000, People's Republic of China
| | - Lei Zhang
- College of Veterinary Medicine, Hebei Agricultural University, Baoding, Hebei 071000, People's Republic of China
| | - Cui Juan Lan
- Fengrun Bureau of Agriculture and Rural Affairs, Tangshan, Hebei 063000, People's Republic of China
| | - Jian Ping Wang
- College of Veterinary Medicine, Hebei Agricultural University, Baoding, Hebei 071000, People's Republic of China
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Zhang X, Kuang X, Ren X, Wang Y, Liu X, Li Y, Ju H, Wei Q. Supramolecular Anchored Copper Nanoclusters for a Multipath Electrochemiluminescence Probe. Anal Chem 2023; 95:16761-16770. [PMID: 37905934 DOI: 10.1021/acs.analchem.3c04086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2023]
Abstract
Copper nanoclusters (Cu NCs) are highly promising nanomaterials in the field of electrochemiluminescence (ECL). Nevertheless, their limited stability and efficiency have impeded their practical applications. Here, we introduced a novel supramolecular anchoring strategy resulting in the creation of exceptionally stable Cu NCs (CET-Cu NCs) with remarkable ECL properties. Specifically, CET-Cu NCs exhibited a relative ECL efficiency (ΦECL) of 62% based on the annihilation ECL efficiency of [Ru(bpy)3]2+ (100%), with tripropylamine employed as a coreactant. Moreover, CET-Cu NCs can generate ECL emission through multiple different paths, which enables them to serve as signal probes in a wider range of testing scenarios, thereby enhancing the reliability and robustness of sensing and analytical systems. To demonstrate the practical utility, CET-Cu NCs were selected as an ECL signal probe for a sensing platform that facilitated ultrasensitive detection of progesterone via oriented immobilization technology and antibody/aptamer sandwich assays. This study surmounted the barriers to the practical application of Cu NCs through the implementation of a supramolecular anchoring strategy, thereby providing enhanced utility of Cu NCs in ECL sensing and analysis.
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Affiliation(s)
- Xiaoyue Zhang
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China
| | - Xuan Kuang
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China
| | - Xiang Ren
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China
| | - Yuewei Wang
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China
| | - Xuejing Liu
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China
| | - Yueyun Li
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255049, P. R. China
| | - Huangxian Ju
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China
- State Key Laboratory of Analytical Chemistry for Life Science, Department of Chemistry, Nanjing University, Nanjing 210023, China
| | - Qin Wei
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China
- Department of Chemistry, Sungkyunkwan University, Suwon 16419, Republic of Korea
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Su Y, Liu G, Hou H, Peng Y, Wang J. Development of a Magnetic Molecularly Imprinted Microsphere-Based Signal Amplified Semi-Homogeneous Method for Multidetection of Five Progestins in Milk. Foods 2023; 12:2818. [PMID: 37569089 PMCID: PMC10417076 DOI: 10.3390/foods12152818] [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: 07/05/2023] [Revised: 07/16/2023] [Accepted: 07/19/2023] [Indexed: 08/13/2023] Open
Abstract
The residues of progestins in milk are significant risk factors for teenage acne and may cause hormone-dependent cancers in consumers, so the determination of these residues in milk is very important. However, an immunoassay or immunoassay-like method capable of determining multiple progestins in milk has not been reported so far. The present study, for the first time, synthesized a type of magnetic molecularly imprinted microsphere that was capable of simultaneously recognizing five progestins. At the same time, an enzyme labeled conjugate was synthesized by coupling progesterone 3-(o-carboxymethyl)oxime with streptavidinated horseradish peroxidase. The above two reagents were used to develop a semi-homogeneous method for the simultaneous detection of the residues of the five progestins in milk. During the experiments, biotinylated horseradish peroxidase was used to amplify the signal, so the sensitivity to the five drugs (limits of detection 0.04-0.1 pg/mL) was increased 44-75-fold. In addition, the magnetic molecularly imprinted microsphere could be regenerated four times by using simple elution. Through general comparison of its detection spectrum, sensitivity, simplicity, and reusability, the present method exhibited better performance than the previous immunoassays for the detection of progestins, and so it could be used as a routine tool for the screening of progestins residues in milk.
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Affiliation(s)
| | | | | | | | - Jianping Wang
- College of Veterinary Medicine, Hebei Agricultural University, Baoding 071000, China; (Y.S.); (G.L.); (H.H.); (Y.P.)
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Fookes F, Polo Parada L, Fidalgo M. A Robust Method for the Elaboration of SiO 2-Based Colloidal Crystals as a Template for Inverse Opal Structures. SENSORS (BASEL, SWITZERLAND) 2023; 23:1433. [PMID: 36772472 PMCID: PMC9920682 DOI: 10.3390/s23031433] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 01/13/2023] [Accepted: 01/26/2023] [Indexed: 06/18/2023]
Abstract
Photonic crystals (PCs) are nanomaterials with photonic properties made up of periodically modulated dielectric materials that reflect light between a wavelength range located in the photonic band gap. Colloidal PCs (C-PC) have been proposed for several applications such as optical platforms for the formation of physical, chemical, and biological sensors based on a chromatic response to an external stimulus. In this work, a robust protocol for the elaboration of photonic crystals based on SiO2 particle (SP) deposition using the vertical lifting method was studied. A wide range of lifting speeds and particle suspension concentrations were investigated by evaluating the C-PC reflectance spectrum. Thinner and higher reflectance peaks were obtained with a decrease in the lifting speed and an increase in the SP concentrations up to certain values. Seven batches of twelve C-PCs employing a SP 3% suspension and a lifting speed of 0.28 µm/s were prepared to test the reproducibility of this method. Every C-PC fabricated in this assay has a wavelength peak in a range of 10 nm and a peak width lower than 90 nm. Inverse-opal polymeric films with a highly porous and interconnected morphology were obtained using the developed C-PC as a template. Overall, these results showed that reproducible colloidal crystals could be elaborated on a large scale with a simple apparatus in a short period, providing a step forward in the scale-up of the fabrication of photonic colloidal crystal and IO structures as those employed for the elaboration of photonic polymeric sensors.
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Affiliation(s)
- Federico Fookes
- Instituto de Desarrollo Tecnológico para la Industria Química (INTEC), Universidad Nacional del Litoral–Conicet, Güemes 3450, Santa Fe 3000, Argentina
- Department of Civil and Environmental Engineering, University of Missouri, Columbia, MO 65211, USA
| | - Luis Polo Parada
- Department of Medical Pharmacology & Physiology, Dalton Cardiovascular Research Center, University of Missouri, Columbia, MO 65211, USA
| | - María Fidalgo
- Department of Civil and Environmental Engineering, University of Missouri, Columbia, MO 65211, USA
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Salahshoor Z, Ho KV, Hsu SY, Hossain AH, Trauth K, Lin CH, Fidalgo M. Detection of Atrazine and Its Metabolites in Natural Water Samples Using Photonic Molecularly Imprinted Sensors. Molecules 2022; 27:molecules27165075. [PMID: 36014316 PMCID: PMC9415651 DOI: 10.3390/molecules27165075] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 08/01/2022] [Accepted: 08/08/2022] [Indexed: 11/16/2022] Open
Abstract
In a previous study, photonic-based molecularly imprinted polymers (MIPs) were fabricated using atrazine (ATZ) and its metabolites, desethylatrazine (DEA) and desisopropylatrazine (DIA), as templates in separate matrices. For the purposes of monitoring the abovementioned molecules in natural waters, the effect of natural waters—featuring ionic strength and natural organic matter (NOM) on atrazine MIP—were studied in this work, and the photonic MIP was implemented for monitoring the target molecules in natural water samples collected from land in nearby farms in northeast of Columbia MO. Non-imprinted polymers (NIP) were also fabricated and applied in the experiments as a control test. In presence of NaCl, CaCl2, and NOM, MIPs presented lower responses by 26%, higher responses by 23%, and higher responses by 35%, respectively. NIPs response in terms of an increase or decrease was consistent with those of MIPs, but only for a lower percentage. MIPs response in natural waters—which were characterized for their physicochemical characteristics such as conductivity, total organic carbon content, etc.—provided a good approximation of the real concentrations obtained from the LCMS instrument; in general, they showed a good concordance, although large discrepancies occurred for some samples, which can be related to reproducibility issues in the manufacturing process or the presence of unknown interfering compounds in the real samples.
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Affiliation(s)
- Zahra Salahshoor
- Department of Civil and Environmental Engineering, University of Missouri, Columbia, MO 65211, USA
| | - Khanh-Van Ho
- Center for Agroforestry, School of Natural Resources, University of Missouri, Columbia, MO 65211, USA
- Department of Chemistry, University of Missouri, Columbia, MO 65211, USA
- Molecular Imaging and Theranostics Center, University of Missouri, Columbia, MO 65211, USA
- Department of Food Technology, Can Tho University, Can Tho 92000, Vietnam
| | - Shu-Yu Hsu
- Center for Agroforestry, School of Natural Resources, University of Missouri, Columbia, MO 65211, USA
| | - Adel H. Hossain
- Department of Civil and Environmental Engineering, University of Missouri, Columbia, MO 65211, USA
| | - Kathleen Trauth
- Department of Civil and Environmental Engineering, University of Missouri, Columbia, MO 65211, USA
| | - Chung-Ho Lin
- Center for Agroforestry, School of Natural Resources, University of Missouri, Columbia, MO 65211, USA
| | - Maria Fidalgo
- Department of Civil and Environmental Engineering, University of Missouri, Columbia, MO 65211, USA
- Correspondence:
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