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Lin M, Yang H, Li Q, Xiao H, Jiang S, Liang J, Cui X, Zhao S. Dual lateral flow assay based on PdRu nanocages for human Papillomavirus detection. J Colloid Interface Sci 2024; 673:893-900. [PMID: 38908288 DOI: 10.1016/j.jcis.2024.06.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2024] [Revised: 05/21/2024] [Accepted: 06/02/2024] [Indexed: 06/24/2024]
Abstract
Cervical cancer is one of the most common gynecological malignancies, with the vast majority of which being caused by persistent infection with Human Papillomavirus (HPV) 16 and 18. The current available HPV detection methods are sensitive and genotyped but are restricted by expensive instruments and skilled personnel. The development of an easy-to-use, rapid, and cost-friendly analysis method for HPV is of great need. Herein, hollow palladium-ruthenium nanocages modified with two oligonucleotides (PdRu capture probes) were constructed for genotyping and simultaneous detection of target nucleic acids HPV16 and HPV18 by dual lateral flow assay (DLFA). PdRu capture probes were endowed with bi-functions for the first time, which could be used to output signals and hybridize target nucleic acids. Under optimized conditions, the PdRu based-DLFA with detection limits of 0.93 nM and 0.19 nM, respectively, exhibited convenient operation, and high sensitivity. Meanwhile, the DLFA achieved excellent rapid detection within 20 min, which was attributed to capture probes that can be directly bound to amplification-free target nucleic acids. Therefore, the development of PdRu-based DLFA can be utilized for rapid, sensitive, and simultaneous genotyping detection of HPV16 and HPV18, showing great application for nucleic acid detection.
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Affiliation(s)
- Mingxia Lin
- Department of Pharmaceutical Engineering, School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China.
| | - Huiyi Yang
- Molecular Diagnosis and Treatment Center for Infectious Diseases, Dermatology Hospital, Southern Medical University, Guangzhou, China.
| | - Qinglan Li
- Department of Pharmaceutical Engineering, School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China.
| | - Huanxin Xiao
- Department of Pharmaceutical Engineering, School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China.
| | - Shilin Jiang
- Department of Pharmaceutical Engineering, School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China.
| | - Jinhui Liang
- Department of Pharmaceutical Engineering, School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China.
| | - Xiping Cui
- Department of Pharmaceutical Engineering, School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China.
| | - Suqing Zhao
- Department of Pharmaceutical Engineering, School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China.
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2
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Xie G, Mao F, Huang Y, Wen L, Sun Z, He Z, Liu X. Enzyme Cascade Amplification-Based Immunoassay Using Alkaline Phosphatase-Linked Single-Chain Variable Fragment Fusion Tracer and MnO 2 Nanosheets for Detection of Deoxynivalenol in Corn Samples. Foods 2024; 13:2009. [PMID: 38998516 PMCID: PMC11241725 DOI: 10.3390/foods13132009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2024] [Revised: 06/13/2024] [Accepted: 06/21/2024] [Indexed: 07/14/2024] Open
Abstract
Deoxynivalenol (DON) is a common mycotoxin that contaminates cereals. Therefore, the development of sensitive and efficient detection methods for DON is essential to guarantee food safety and human health. In this study, an enzyme cascade amplification-based immunoassay (ECAIA) using a dual-functional alkaline phosphatase-linked single-chain fragment variable fusion tracer (scFv-ALP) and MnO2 nanosheets was established for DON detection. The scFv-ALP effectively catalyzes the hydrolysis of ascorbyl-2-phosphate (AAP) to produce ascorbic acid (AA). This AA subsequently interacts with MnO2 nanosheets to initiate a redox reaction that results in the loss of oxidizing properties of MnO2. In the absence of ALP, MnO2 nanosheets can oxidize 3,3',5,5'-tetramethylbenzidine (TMB) to produce the blue oxidized product of TMB, which exhibits a signal at a wavelength of 650 nm for quantitative analysis. After optimization, the ECAIA had a limit of detection of 0.45 ng/mL and a linear range of 1.2-35.41 ng/mL. The ECAIA exhibited good accuracy in recovery experiments and high selectivity for DON. Moreover, the detection results of the actual corn samples correlated well with those from high-performance liquid chromatography. Overall, the proposed ECAIA based on the scFv-ALP and MnO2 nanosheets was demonstrated as a reliable tool for the detection of DON in corn samples.
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Affiliation(s)
- Guifang Xie
- School of Food Science and Engineering, Hainan University, Haikou 570228, China
- Guizhou Provincial Supervision and Testing Center for Agricultural Product Quality, Agricultural Product Quality and Safety Risk Assessment Laboratory of the Ministry of Agriculture, Guiyang 550004, China
| | - Fujing Mao
- School of Food Science and Engineering, Hainan University, Haikou 570228, China
| | - Yirui Huang
- School of Food Science and Engineering, Hainan University, Haikou 570228, China
| | - Li Wen
- School of Food Science and Engineering, Hainan University, Haikou 570228, China
| | - Zhichang Sun
- School of Food Science and Engineering, Hainan University, Haikou 570228, China
| | - Zhenyun He
- School of International Tourism, Hainan College of Economics and Business, Haikou 571127, China
| | - Xing Liu
- School of Food Science and Engineering, Hainan University, Haikou 570228, China
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3
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He J, Wang Y, Wang D, Yang Y, Xue X, Xu T, Gu S, Tang F. Heterologous antigen selection of chicken single-chain variable fragments against thiamethoxam. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:1756-1762. [PMID: 38440844 DOI: 10.1039/d3ay01422c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/06/2024]
Abstract
Single-chain variable fragments (scFvs) are valuable in the development of immunoassays for pesticide detection. In this study, scFvs specific to thiamethoxam (Thi) were successfully isolated from a library generated by chicken immunization through heterologous coating selection. These scFvs were subsequently expressed with fusion with an Avi tag and alkaline phosphatase. After combination and optimization, a scFv-biotin based enzyme linked immunosorbent assay (ELISA) was developed for the detection of Thi, demonstrating an impressive half-maximum signal inhibition concentration (IC50) of 30 ng mL-1 and a limit of detection (LOD) of 1.8 ng mL-1. The immunoassay exhibited minimal cross-reactivity with other neonicotinoid insecticides, except for 7.5% for imidacloprid and 6.7% for imidaclothiz. The accuracy of the assay was confirmed by testing spiked samples of apple, pear, cabbage, and cucumber, which resulted in average recoveries ranging between 82% and 119%, closely aligning with the results obtained through high-performance liquid chromatography. Therefore, the chicken scFv-biotin based assay showed promise as a high-throughput screening tool for Thi in agricultural samples.
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Affiliation(s)
- Jinxin He
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China.
| | - Yating Wang
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China.
| | - Di Wang
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China.
| | - Yayun Yang
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China.
| | - Xianle Xue
- Beijing Key Laboratory of Biodiversity and Organic Farming, College of Resources and Environmental Sciences, China Agricultural University, Beijing, 100193, China.
| | - Ting Xu
- Beijing Key Laboratory of Biodiversity and Organic Farming, College of Resources and Environmental Sciences, China Agricultural University, Beijing, 100193, China.
| | - Shaopeng Gu
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China.
| | - Fang Tang
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China.
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4
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Xu W, Song D, Liu J, Han X, Xu J, Zhu A, Long F. Development of chemiluminescent lab-on-fiber immunosensors for rapid point-of-care testing of anti-SARS-CoV-2 antibodies and evaluation of longitudinal immune response kinetics following three-dose inactivation virus vaccination. J Med Virol 2022; 95:e28190. [PMID: 36180404 PMCID: PMC9539144 DOI: 10.1002/jmv.28190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 09/19/2022] [Accepted: 09/26/2022] [Indexed: 01/11/2023]
Abstract
Developing reliable, rapid, and quantitative point-of-care testing (POCT) technology of SARS-CoV-2-specific antibodies and understanding longitudinal vaccination response kinetics are highly required to restrain the ongoing coronavirus disease 2019 (COVID-19) pandemic. We demonstrate a novel portable, sensitive, and rapid chemiluminescent lab-on-fiber detection platform for detection of anti-SARS-CoV-2 antibodies: the chemiluminescent lab-on-fiber immunosensor (c-LOFI). Using SARS-CoV-2 Spike S1 RBD protein functionalized fiber bio-probe, the c-LOFI can detect anti-SARS-CoV-2 immunoglobulin G (IgG) and immunoglobulin M (IgM) antibodies with high sensitivity based on their respective horseradish peroxidase-labeled secondary antibodies. The limits of detection of anti-SARS-CoV-2 IgG and IgM antibodies were 0.6 and 0.3 ng/ml, respectively. The c-LOFI was successfully applied for direct detection of anti-SARS-CoV-2 antibodies in whole blood samples with simple dilution, which can serve as a finger prick test to rapidly detect antibodies. Furthermore, the longitudinal immune response (>12 months) kinetics following three-dose inactivated virus vaccines was evaluated based on anti-SARS-CoV-2 IgG detection results, which can provide important significance for understanding the immune mechanism against COVID-19 and identify individuals who may benefit from the vaccination and booster vaccination. The c-LOFI has great potential to become a sensitive, low-cost, rapid, high-frequency POCT tool for the detection of both SARS-CoV-2-specific antibodies and other biomarkers.
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Affiliation(s)
- Wenjuan Xu
- School of Environment and Natural ResourcesRenmin University of ChinaBeijing100872China
| | - Dan Song
- School of Environment and Natural ResourcesRenmin University of ChinaBeijing100872China
| | - Jiayao Liu
- School of Environment and Natural ResourcesRenmin University of ChinaBeijing100872China
| | - Xiangzhi Han
- School of Environment and Natural ResourcesRenmin University of ChinaBeijing100872China
| | - Jiaxin Xu
- School of Environment and Natural ResourcesRenmin University of ChinaBeijing100872China
| | - Anna Zhu
- State Key Laboratory of NBC Protection for CivilianBeijing102205China
| | - Feng Long
- School of Environment and Natural ResourcesRenmin University of ChinaBeijing100872China,Department of ChemistryRenmin University of ChinaBeijing100872China
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He Q, Yang L, Lin M, Yang H, Cui X, McCoy MR, Hammock BD, Fang Y, Zhao S. Generation of bioluminescent enzyme immunoassay for ferritin by single-chain variable fragment and its NanoLuc luciferase fusion. Anal Bioanal Chem 2022; 414:6939-6946. [PMID: 35945290 PMCID: PMC9531656 DOI: 10.1007/s00216-022-04261-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 07/26/2022] [Accepted: 08/01/2022] [Indexed: 11/01/2022]
Abstract
Ferritin, widely present in liver and spleen tissue, is considered as a serological biomarker for liver diseases and cancers. The detection of ferritin may be an important tool in health diagnosis. In this study, 14 non-immunized chicken spleens were utilized to construct a single-chain fragment (scFv) phage library. After 4 rounds of panning, 7 unique clones were obtained. The optimal clone was further screened and combined with NanoLuc luciferase (Nluc) as a dual functional immunoprobe to bioluminescent enzyme immunoassay (BLEIA), which was twice as sensitive as its parental scFv-based double-sandwich enzyme-linked immunoassay (ds-ELISA). The cross-reactivity analysis revealed that the proposed methods were highly selective and suitable for clinical detection. To further verify the performance of the immunoassays, serum samples were tested by the proposed methods and a commercial ELISA kit, and there was a good correlation between the results. These results suggested that scFv fused with Nluc might be a powerful dual functional tool for rapid, practically reliable, and highly sensitive ferritin detection.
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Affiliation(s)
- Qiyi He
- Department of Pharmaceutical Engineering, School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, 510006, People's Republic of China
- Faculty of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, People's Republic of China
| | - Li Yang
- Biotherapy Center, Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510630, People's Republic of China
| | - Mingxia Lin
- Department of Pharmaceutical Engineering, School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, 510006, People's Republic of China
| | - Huiyi Yang
- Department of Pharmaceutical Engineering, School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, 510006, People's Republic of China
| | - Xiping Cui
- Department of Pharmaceutical Engineering, School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, 510006, People's Republic of China
| | - Mark R McCoy
- Department of Entomology and Nematology and UCD Comprehensive Cancer Center, University of California, Davis, Davis, CA, 95616, USA
| | - Bruce D Hammock
- Department of Entomology and Nematology and UCD Comprehensive Cancer Center, University of California, Davis, Davis, CA, 95616, USA
| | - Yanxiong Fang
- Faculty of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, People's Republic of China.
| | - Suqing Zhao
- Department of Pharmaceutical Engineering, School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, 510006, People's Republic of China.
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6
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Zhao X, Liu Z, Sun F, Yao L, Yang G, Wang K. Bile Acid Detection Techniques and Bile Acid-Related Diseases. Front Physiol 2022; 13:826740. [PMID: 35370774 PMCID: PMC8967486 DOI: 10.3389/fphys.2022.826740] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 02/22/2022] [Indexed: 12/23/2022] Open
Abstract
Bile acid is a derivative of cholinergic acid (steroidal parent nucleus) that plays an important role in digestion, absorption, and metabolism. In recent years, bile acids have been identified as signaling molecules that regulate self-metabolism, lipid metabolism, energy balance, and glucose metabolism. The detection of fine changes in bile acids caused by metabolism, disease, or individual differences has become a research hotspot. At present, there are many related techniques, such as enzyme analysis, immunoassays, and chromatography, that are used for bile acid detection. These methods have been applied in clinical practice and laboratory research to varying degrees. However, mainstream detection technology is constantly updated and replaced with the passage of time, proffering new detection technologies. Previously, gas chromatography (GS) and gas chromatography-mass spectrometry (GC-MS) were the most commonly used for bile acid detection. In recent years, high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) has developed rapidly and has gradually become the mainstream bile acid sample separation and detection technology. In this review, the basic principles, development and progress of technology, applicability, advantages, and disadvantages of various detection techniques are discussed and the changes in bile acids caused by related diseases are summarized.
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Affiliation(s)
- Xiang Zhao
- Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Zitian Liu
- Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Fuyun Sun
- Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Lunjin Yao
- Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Guangwei Yang
- Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Kexin Wang
- Department of General Surgery, Qilu Hospital of Shandong University, Jinan, China
- *Correspondence: Kexin Wang,
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Pan J, He Q, Lao Z, Zou Y, Su J, Li Q, Chen Z, Cui X, Cai Y, Zhao S. A bifunctional immunosensor based on osmium nano-hydrangeas as a catalytic chromogenic and tinctorial signal output for folic acid detection. Analyst 2021; 147:55-65. [PMID: 34821249 DOI: 10.1039/d1an01432c] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
As a neglected member of the platinum group elements, osmium, the metal with the highest density in the earth, is very suitable for the preparation of a peroxidase with high catalytic activity and stability, and can also be associated with the development of a sensor. In this study, we accessed Os nano-hydrangeas (OsNHs) with one-pot synthesis and utilized them in a bifunctional immunosensor that can present both catalytic chromogenic and tinctorial signal for nanozyme-linked immunosorbent assay (NLISA) and lateral flow immunoassay (LFIA) for use in folic acid (FA) detection. In the OsNHs-NLISA, the linear range is from 9.42 to 167.53 ng mL-1. The limit of detection (LOD) is 4.03 ng mL-1 and the IC50 value is 39.73 ng mL-1. In OsNHs-LFIA, the visual cut-off value and limit of detection (v-LOD) are 100 ng mL-1 and 0.01 ng mL-1, respectively. Additionally, the outcome from the specificity and spiked sample analysis offered recovery from the spiked milk powder sample ranging from 93.9 to 103.6% with a coefficient of variation under 4.9%, compared with UPLC-MS/MS for a correlation of R2 = 0.999 and admirable validation. The promising application of the OsNHs can also be used in other bioprobes, and this bifunctional immunosensor analysis mode is suitable for diversified analytes.
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Affiliation(s)
- Junkang Pan
- Department of Pharmaceutical Engineering, School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, People's Republic of China.
| | - Qiyi He
- Department of Pharmaceutical Engineering, School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, People's Republic of China. .,Department of Chemical Engineering and Technology, School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, People's Republic of China
| | - Zhiting Lao
- Department of Pharmaceutical Engineering, School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, People's Republic of China.
| | - Yikui Zou
- Department of Pharmaceutical Engineering, School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, People's Republic of China.
| | - Jingyi Su
- Department of Pharmaceutical Engineering, School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, People's Republic of China.
| | - Qinglan Li
- Department of Pharmaceutical Engineering, School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, People's Republic of China.
| | - Zekai Chen
- Department of Pharmaceutical Engineering, School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, People's Republic of China.
| | - Xiping Cui
- Department of Pharmaceutical Engineering, School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, People's Republic of China.
| | - Yanfei Cai
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, People's Republic of China.
| | - Suqing Zhao
- Department of Pharmaceutical Engineering, School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, People's Republic of China.
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Wu H, Xu X, Liu L, Xu L, Kuang H, Xu C. Gold-based immunochromatographic assay strip for the detection of quinclorac in foods. Analyst 2021; 146:6831-6839. [PMID: 34723310 DOI: 10.1039/d1an01748a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this study, a highly specific and sensitive monoclonal antibody (mAb) against quinclorac (Qui) was prepared. Based on the selected mAb, 2G3, an indirect competitive enzyme-linked immunosorbent assay (ic-ELISA) and an immunochromatographic strip assay were established for the detection of Qui in actual samples. The 50%-inhibitory concentration of mAb 2G3 against Qui was 48.763 ng mL-1. No cross-reaction with other quinolines indicated that mAb 2G3 had high specificity. The recovery of the established ic-ELISA method was in the range of 85.6% to 98.9%. The cut-off value of Qui in cucumber and tomato by immunochromatographic strip was 200 ng g-1. The analysis results of ic-ELISA and immunochromatographic strip assay were consistent with the results of LC-MS/MS, which further proved that the established ic-ELISA and immunochromatographic strip assay could provide valuable tools for the rapid detection of Qui residues in cucumber and tomato samples.
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Affiliation(s)
- Huihui Wu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China. .,International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China
| | - Xinxin Xu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China. .,International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China
| | - Liqiang Liu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China. .,International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China
| | - Liguang Xu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China. .,International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China
| | - Hua Kuang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China. .,International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China
| | - Chuanlai Xu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China. .,International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China
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9
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Lu M, Liang M, Pan J, Zhong Y, Zhang C, Cui X, Wang T, Yan J, Ding J, Zhao S. Development of a Highly Sensitive Biotin-Streptavidin Amplified Enzyme-Linked Immunosorbent Assay for Determination of Progesterone in Milk Samples. FOOD ANAL METHOD 2021. [DOI: 10.1007/s12161-021-02137-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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10
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Xu W, Liu J, Song D, Li C, Zhu A, Long F. Rapid, label-free, and sensitive point-of-care testing of anti-SARS-CoV-2 IgM/IgG using all-fiber Fresnel reflection microfluidic biosensor. Mikrochim Acta 2021; 188:261. [PMID: 34278534 PMCID: PMC8286882 DOI: 10.1007/s00604-021-04911-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Accepted: 06/21/2021] [Indexed: 01/28/2023]
Abstract
The ongoing global pandemic of SARS-CoV-2 has promoted to develop novel serological testing technologies since they can be effectively complementary to RT-PCR. Here, a new all-fiber Fresnel reflection microfluidic biosensor (FRMB) was constructed through combining all-fiber optical system, microfluidic chip, and multimode fiber bio-probe. The transmission of the incident light and the collection and transmission of Fresnel reflection light are achieved using a single-multi-mode fiber optic coupler (SMFC) without any other optical separation elements. This compact design greatly simplifies the whole system structure and improves light transmission efficiency, which makes it suitable for the label-free, sensitive, and easy-to-use point-of-care testing (POCT) of targets in nanoliter samples. Based on Fresnel reflection mechanism and immunoassay principle, both the SARS-CoV-2 IgM and IgG antibodies against the SARS-CoV-2 spike protein could be sensitively quantified in 7 min using the secondary antibodies-modified multimode fiber bio-probe. The FRMB performs in one-step, is accurate, label-free, and sensitive in situ/on-site detection of SARS-CoV-2 IgM or IgG in serum with simple dilution only. The limits of detection of SARS-CoV-2 IgM and SARS-CoV-2 IgG were 0.82 ng/mL and 0.45 ng/mL, respectively. Based on our proposed theory, the affinity constants of SARS-CoV-2 IgM or IgG antibody and their respective secondary antibodies were also determined. The FRMB can be readily extended as a universal platform for the label-free, rapid, and sensitive in situ/on-site measurement of other biomarkers and the investigation of biomolecular interaction.
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Affiliation(s)
- Wenjuan Xu
- School of Environment and Natural Resources, Renmin University of China, Beijing, 100872, China
| | - Jiayao Liu
- School of Environment and Natural Resources, Renmin University of China, Beijing, 100872, China
| | - Dan Song
- School of Environment and Natural Resources, Renmin University of China, Beijing, 100872, China
| | - Chunsheng Li
- Biology Institute of Hebei Academy of Sciences, Shijiazhuang, China
| | - Anna Zhu
- State Key Laboratory of NBC Protection for Civilian, Beijing, 102205, China.
| | - Feng Long
- School of Environment and Natural Resources, Renmin University of China, Beijing, 100872, China.
- Department of Chemistry, Renmin University of China, Beijing, 100872, China.
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11
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He Q, Fang Y, Yang H, Shen D, Chen Y, Zhong Y, Li X, Eremin SA, Cui X, Zhao S. Enhanced performance of a surface plasmon resonance-based immunosensor for the detection of glycocholic acid. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2021; 13:1919-1924. [PMID: 33913980 DOI: 10.1039/d1ay00357g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The concentration of glycocholic acid (GCA) in urine and blood is an important biomarker for liver cancer. Monitoring of GCA depends to a large extent on the availability of appropriate analytical techniques. In this work, based on the immobilization of GCA-OVA onto the sensor chip surface, a label-free competitive inhibition immunoassay for the determination of GCA with the surface plasmon resonance (SPR) technique was developed. The proposed SPR immunosensor is simple to prepare, recyclable and exhibits excellent sensitivity to GCA (a linear range of 13.3-119.4 ng mL-1 and a limit of detection (LOD) of 2.5 ng mL-1), which was 14 times lower than that of the traditional immunoassay. Excellent recoveries and correlation between these two methods were observed (R2 = 0.995). Hence, it can be proved that the SPR immunosensor could be used to achieve rapid and sensitive quantitative detection of GCA in real urine samples and meet clinical needs.
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Affiliation(s)
- Qiyi He
- Department of Pharmaceutical Engineering, School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, People's Republic of China.
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12
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Lu M, He Q, Zhong Y, Pan J, Lao Z, Lin M, Wang T, Cui X, Ding J, Zhao S. An ultrasensitive colorimetric assay based on a multi-amplification strategy employing Pt/IrO 2@SA@HRP nanoflowers for the detection of progesterone in saliva samples. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2021; 13:1164-1171. [PMID: 33599661 DOI: 10.1039/d1ay00053e] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Progesterone (P4) belongs to a factor that affects stress response and is a potential carcinogen, and saliva levels are expected to be a standard measurement for clinical diagnosis. In this study, a new type of nanoflower with both recognition functionality and catalytic substrate ability was prepared by copper phosphate, Pt/IrO2 nanocomposites (Pt/IrO2 NPs), streptavidin (SA) and horseradish peroxidase (HRP) via a one-pot co-precipitation strategy. Due to the enhanced catalytic activity and stability of Pt/IrO2@SA@HRP nanoflowers, we developed a powerful and sensitive multiple-catalysis ELISA to monitor progesterone in saliva. Multiple-catalysis ELISA based on a specific antibody and Pt/IrO2@SA@HRP nanoflowers exhibited a linear interval range from 0.217 ng mL-1 to 7.934 ng mL-1. The median inhibitory concentration (IC50) for progesterone is 1.311 ng mL-1 and the limit of detection (LOD = IC10) is 0.076 ng mL-1 in the proposed method. Satisfactory recoveries were in a range of 79.6-107% with an acceptable coefficient of variation (below 10.6%). Results of the multiple-catalysis ELISA and LC-MS/MS had a good coincidence. Our result unraveled that multiple-catalysis ELISA is a potentially serviceable tool for the detection of progesterone in saliva.
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Affiliation(s)
- Minglei Lu
- Department of Pharmaceutical Engineering, School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, People's Republic of China.
| | - Qiyi He
- Department of Pharmaceutical Engineering, School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, People's Republic of China.
| | - Yingying Zhong
- Department of Pharmaceutical Engineering, School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, People's Republic of China.
| | - Junkang Pan
- Department of Pharmaceutical Engineering, School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, People's Republic of China.
| | - Zhiting Lao
- Department of Pharmaceutical Engineering, School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, People's Republic of China.
| | - Mingxia Lin
- Department of Pharmaceutical Engineering, School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, People's Republic of China.
| | - Tiantian Wang
- Department of Pharmaceutical Engineering, School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, People's Republic of China.
| | - Xiping Cui
- Department of Pharmaceutical Engineering, School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, People's Republic of China.
| | - Jinlong Ding
- Department of Pharmaceutical Engineering, School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, People's Republic of China.
| | - Suqing Zhao
- Department of Pharmaceutical Engineering, School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, People's Republic of China.
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13
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Chen H, Luo K, Zhou Q, Yan Z, Li K. L-lysine-structure-directed MIL-88A and its application in electrochemical sensing of cholylglycine via molecular imprinting technique. Microchem J 2020. [DOI: 10.1016/j.microc.2020.105249] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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14
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Li X, He P, Yu L, He Q, Jia C, Yang H, Lu M, Wei X, Zhao S. Production and characteristics of a novel chicken egg yolk antibody (IgY) against periodontitis-associated pathogens. J Oral Microbiol 2020; 12:1831374. [PMID: 33144924 PMCID: PMC7580850 DOI: 10.1080/20002297.2020.1831374] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Periodontitis is a bacterial biofilm-induced oral disease, mostly caused by Aggregatibacter actinomycetemcomitans (A. actinomycetemcomitans) and Porphyromonas gingivalis (P. gingivalis). Oral administration of chicken egg yolk antibody (IgY) is a promising nutritional strategy to control pathogen infections. The objective of this study was to produce an A. actinomycetemcomitans- and P. gingivalis-specific IgY and evaluate its effects on bacterial agglutination and biofilm formation. Thirty laying hens were immunized with a complex of lysate containing typical molecular weights of membrane proteins of A. actinomycetemcomitans and P. gingivalis. IgY was isolated by polyethylene glycol 6000 and ammonium sulfate and purified by dialysis. The results of enzyme-linked immunosorbent assay showed that the obtained IgY were specific to both A. actinomycetemcomitans and P. gingivalis. In addition, immunoelectron microscopy scanning and crystal violet staining showed that the IgY could bind to cell wall of the pathogens and efficiently accelerate agglutination and inhibit biofilm formation. Furthermore, the activity of the IgY remained stable at different temperature, pH, and storage period. This is the first report that a novel two-in-one IgY was produced to modulate the agglutination and biofilm formation of A. actinomycetemcomitans and P. gingivalis, suggesting the potential of IgY to control periodontitis caused by oral pathogens.
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Affiliation(s)
- Xiangguang Li
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, People's Republic of China
| | - Pan He
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, People's Republic of China
| | - Linjin Yu
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, People's Republic of China
| | - Qiyi He
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, People's Republic of China
| | - Chenggang Jia
- Institute of Biopharmaceutical, Guilin Sanjin Pharmaceutical Co.,Ltd, Guilin City, Guangxi, People's Republic of China
| | - Huiyi Yang
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, People's Republic of China
| | - Minglei Lu
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, People's Republic of China
| | - Xiuting Wei
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, People's Republic of China
| | - Suqing Zhao
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, People's Republic of China
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15
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Yang H, He Q, Chen Y, Shen D, Xiao H, Eremin SA, Cui X, Zhao S. Platinum nanoflowers with peroxidase-like property in a dual immunoassay for dehydroepiandrosterone. Mikrochim Acta 2020; 187:592. [DOI: 10.1007/s00604-020-04528-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Accepted: 08/21/2020] [Indexed: 11/25/2022]
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16
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Prussian blue nanoparticles with peroxidase-mimicking properties in a dual immunoassays for glycocholic acid. J Pharm Biomed Anal 2020; 187:113317. [PMID: 32416340 DOI: 10.1016/j.jpba.2020.113317] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 04/02/2020] [Accepted: 04/14/2020] [Indexed: 12/16/2022]
Abstract
Prussian Blue nanoparticles (PBNPs) were utilized in a lateral flow immunoassay (LFA) and in an indirect competitive nanozyme-linked immunosorbent assay (icELISA), respectively, for their intense blue color and peroxidase (POx) -like activity. The PBNPs with good POx-like activity was linked to the antibody. Under the optimal parameters, both the PBNP-icELISA and PBNP-LFA perform very well. The icELISA has an IC50 value of 190 ng/mL, the working range extends from 29 to 1200 ng/mL, and the limit of detection is 22 ng/mL. The visual cut-off limit is 10 ng/mL. The dual immunoassay was used to quantify glycocholic acid in spiked human urine. Excellent recoveries and correlation between the two methods were observed.
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17
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Liu J, Xu W, Zhu A, Kang H, Cao Y, Long F. Reusable optofluidic point-of-care testing platform with lyophilized specific antibody for fluorescence detection of cholylglycine in serum. Mikrochim Acta 2020; 187:439. [PMID: 32653962 DOI: 10.1007/s00604-020-04424-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Accepted: 06/30/2020] [Indexed: 02/07/2023]
Abstract
A reusable optofluidic point-of-care testing platform (OPOCT) was successfully constructed through integrating evanescent wave fluorescence technology into an all-fiber-based optofluidic system. The compact design of the OPOCT allows it to be portable and suitable for on-site sensitive determination of biomarkers in serum without complicated and costly procedures. The sensitivity of 90.9 pM for antibody determination is observed thanks to the high transmission efficiency of excitation light and fluorescence in the OPOCT. The affinity constant between cholylglycine (CG) and anti-CG antibody was quantified using this platform based on the proposed theory. Using the lyophilized fluorescence-labeled specific antibody and reusable fiber optic biosensor, the OPOCT is applied to the one-step sensitive determination of CG in serum, which eliminates the dearth associated with liquid reagent handling, disposable biosensors, and user intervention. A limit of detection of 0.025 μg/mL for CG is obtained, which is far more than adequate for meeting diagnostic requirements. The matrix effect of serum samples on the evanescent wave-based optofluidic biosensor can be effectively reduced by simple dilution of serum samples. The performance of the OPOCT also compared favorably with that of a commercial turbidimetric inhibition immunoassay through analyzing multiple serum samples. This platform is ready to expand to measure any other biomarker by using its specific antibody. The simplicity, sensitivity, cost-effectiveness, and robustness of the OPOCT enable the early diagnosis of disease and making a timely clinical decision. Graphical abstract .
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Affiliation(s)
- Jiayao Liu
- School of Environment and Natural Resources, Renmin University of China, Beijing, 100874, China
| | - Wenjuan Xu
- School of Environment and Natural Resources, Renmin University of China, Beijing, 100874, China
| | - Anna Zhu
- State Key Laboratory of NBC Protection for Civilian, Academy of Military Sciences PLA China, Beijing, 102205, China
| | - Haoxiang Kang
- Beijing MDTK Biotechnology Corporation, Beijing, 102206, China
| | - Yu Cao
- Beijing MDTK Biotechnology Corporation, Beijing, 102206, China
| | - Feng Long
- School of Environment and Natural Resources, Renmin University of China, Beijing, 100874, China.
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18
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He H, An F, Huang Q, Kong Y, He D, Chen L, Song H. Metabolic effect of AOS-iron in rats with iron deficiency anemia using LC-MS/MS based metabolomics. Food Res Int 2020; 130:108913. [DOI: 10.1016/j.foodres.2019.108913] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Revised: 12/02/2019] [Accepted: 12/15/2019] [Indexed: 12/17/2022]
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19
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Yang MN, Zhang YF, Zhi GY, Gu XF, Han L, Zhang DH. Fabricating cholyglycine-glucose-6-phosphate dehydrogenase conjugates for cholyglycine detection. Biotechnol Appl Biochem 2019; 67:257-264. [PMID: 31651049 DOI: 10.1002/bab.1842] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Accepted: 10/05/2019] [Indexed: 11/05/2022]
Abstract
To establish cholyglycine (CG) detection via enzyme-multiplied immunoassay technique (EMIT), glucose-6-phosphate dehydrogenase (G6PD) was used as a reporter enzyme to prepare hapten-enzyme conjugate. Gel electrophoresis and UV scanning demonstrated that G6PD was successfully labeled with cholyglycine, and CG-G6PD conjugate was obtained. Furthermore, the effects of various parameters on the preparation of CG-G6PD conjugates were investigated. Consequently, CG amount, nicotinamide adenine dinucleotide, d-glucose-6-phosphate (G6P), phosphate buffer and the pH, and ionic strength of solution had important effects on the residual activity of CG-G6PD. Moreover, CG amount, the pH, and G6P played important roles in changing CG labeling location on G6PD. Using the CG-G6PD conjugate as test kit, the cholyglycine-EMIT calibration curve was established, which could be employed in clinical detection of cholyglycine. This study provides some valuable information for preparing hapten-G6PD conjugates.
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Affiliation(s)
- Mei-Na Yang
- College of Pharmaceutical Science, Hebei University, Baoding, China
| | - Ya-Fang Zhang
- Pharmacy Department, Baoding Children's Hospital, Baoding, China
| | - Gao-Ying Zhi
- Computer Center, Hebei University, Baoding, China
| | - Xiao-Fei Gu
- College of Pharmaceutical Science, Hebei University, Baoding, China
| | - Li Han
- College of Pharmaceutical Science, Hebei University, Baoding, China
| | - Dong-Hao Zhang
- College of Pharmaceutical Science, Hebei University, Baoding, China.,Key Laboratory of Pharmaceutical Quality Control of Hebei Province, College of Pharmaceutical Science, Hebei University, Baoding, China
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20
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Peng H, Huang Z, Wu W, Liu M, Huang K, Yang Y, Deng H, Xia X, Chen W. Versatile High-Performance Electrochemiluminescence ELISA Platform Based on a Gold Nanocluster Probe. ACS APPLIED MATERIALS & INTERFACES 2019; 11:24812-24819. [PMID: 31241892 DOI: 10.1021/acsami.9b08819] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
This report outlines a versatile high-performance electrochemiluminescence (ECL) enzyme-linked immunosorbent assay (ELISA) platform, which combines the merits of high-quantum-yield Au nanocluster (AuNC) probe-based ECL technology, the efficient ECL-resonance energy-transfer (ECL-RET) strategy, and highly sensitive and specific ELISA technology. The ECL detection procedure was performed on a recyclable MnO2/AuNC-modified glassy carbon electrode interface by taking advantage of the ECL-RET between the AuNC probe and MnO2 nanomaterials (NMs) to quench the ECL intensity. The etching of MnO2 NMs by the product of ALP-based ELISA recovers the ECL signal. Notably, the ELISA process and the ECL detection procedure in this system are independent. Thus, the ECL-ELISA system can effectively avoid the influence of complex biological samples, and the ECL efficiency of the AuNC probe can be used readily. As demonstrated on TNF-α, because of the abovementioned characteristics, the ECL-ELISA platform presented an extremely wide dynamic range, with a detection limit of 2 orders lower than ELISA. Moreover, the system was also applicable for ultrahigh sensitive detection of various disease-related proteins and able to detect trace biomarkers in real serum samples. Therefore, this multifunctional ECL assay platform is versatile, facile, ultrasensitive, recyclable, and sufficiently straightforward for trace biomarker detection in complex biological samples. This approach not only enriches the foundational study of ECL devices but also greatly expands the potential application of ECL sensors in biological testing and clinical high-throughput diagnosis.
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Affiliation(s)
- Huaping Peng
- Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, Department of Pharmaceutical Analysis , Fujian Medical University , Fuzhou 350004 , China
| | - Zhongnan Huang
- Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, Department of Pharmaceutical Analysis , Fujian Medical University , Fuzhou 350004 , China
| | - Weihua Wu
- Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, Department of Pharmaceutical Analysis , Fujian Medical University , Fuzhou 350004 , China
| | - Mingkai Liu
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials , Jiangsu Normal University , Xuzhou 221116 , China
| | - Kaiyuan Huang
- Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, Department of Pharmaceutical Analysis , Fujian Medical University , Fuzhou 350004 , China
| | - Yu Yang
- Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, Department of Pharmaceutical Analysis , Fujian Medical University , Fuzhou 350004 , China
| | - Haohua Deng
- Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, Department of Pharmaceutical Analysis , Fujian Medical University , Fuzhou 350004 , China
| | - Xinghua Xia
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering , Nanjing University , Nanjing 210093 , China
| | - Wei Chen
- Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, Department of Pharmaceutical Analysis , Fujian Medical University , Fuzhou 350004 , China
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21
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Huo J, Barnych B, Li Z, Wan D, Li D, Vasylieva N, Knezevic SZ, Osipitan OA, Scott JE, Zhang J, Hammock BD. Hapten Synthesis, Antibody Development, and a Highly Sensitive Indirect Competitive Chemiluminescent Enzyme Immunoassay for Detection of Dicamba. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:5711-5719. [PMID: 31042038 PMCID: PMC6873229 DOI: 10.1021/acs.jafc.8b07134] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Although dicamba has long been one of the most widely used selective herbicides, some U.S. states have banned the sale and use of dicamba because of farmers complaints of drift and damage to nonresistant crops. To prevent illegal use of dicamba and allow monitoring of nonresistant crops, a rapid and sensitive method for detection of dicamba is critical. In this paper, three novel dicamba haptens with an aldehyde group were synthesized, conjugated to the carrier protein via a reductive-amination procedure and an indirect competitive chemiluminescent enzyme immunoassay (CLEIA) for dicamba was developed. The assay showed an IC50 of 0.874 ng/mL which was over 15 times lower than that of the conventional enzyme immunoassay. The immunoassay was used to quantify dicamba concentrations in field samples of soil and soybean obtained from fields sprayed with dicamba. The developed CLEIA showed an excellent correlation with LC-MS analysis in spike-and-recovery studies, as well as in real samples. The recovery of dicamba ranged from 86 to 108% in plant samples and from 105 to 107% in soil samples. Thus, this assay is a rapid and simple analytical tool for detecting and quantifying dicamba levels in environmental samples and potentially a great tool for on-site crop and field monitoring.
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Affiliation(s)
- Jingqian Huo
- College of Plant Protection, Agricultural University of Hebei, Baoding 071001, P. R. China
- Department of Entomology and Nematology and UCD Comprehensive Cancer Center, University of California, Davis, California 95616
| | - Bogdan Barnych
- Department of Entomology and Nematology and UCD Comprehensive Cancer Center, University of California, Davis, California 95616
| | - Zhenfeng Li
- Department of Entomology and Nematology and UCD Comprehensive Cancer Center, University of California, Davis, California 95616
| | - Debin Wan
- Department of Entomology and Nematology and UCD Comprehensive Cancer Center, University of California, Davis, California 95616
| | - Dongyang Li
- Department of Entomology and Nematology and UCD Comprehensive Cancer Center, University of California, Davis, California 95616
| | - Natalia Vasylieva
- Department of Entomology and Nematology and UCD Comprehensive Cancer Center, University of California, Davis, California 95616
| | - Stevan Z. Knezevic
- Haskell Agricultural Laboratory, University of Nebraska Lincoln, Concord, NE, 68728
| | - O. Adewale Osipitan
- Haskell Agricultural Laboratory, University of Nebraska Lincoln, Concord, NE, 68728
| | - Jon E. Scott
- Haskell Agricultural Laboratory, University of Nebraska Lincoln, Concord, NE, 68728
| | - Jinlin Zhang
- College of Plant Protection, Agricultural University of Hebei, Baoding 071001, P. R. China
| | - Bruce D. Hammock
- Department of Entomology and Nematology and UCD Comprehensive Cancer Center, University of California, Davis, California 95616
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22
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Wu M, Zhai S, Gao J, Wei D, Xue J, Zhou Y, Li N, Hu L. Diagnosis of hepatocellular carcinoma using a novel anti-glycocholic acid monoclonal antibody-based method. Oncol Lett 2019; 17:3103-3112. [PMID: 30867740 PMCID: PMC6396208 DOI: 10.3892/ol.2019.9943] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Accepted: 12/05/2018] [Indexed: 02/05/2023] Open
Abstract
Glycocholic acid (GCA) is a novel identified biomarker for hepatocellular carcinoma (HCC). However, clinical pathological study of GCA has not been extensive due to the limited availability of anti-GCA monoclonal antibodies (mAbs) and restricted detection methods. In the present study, using human GCA conjugated with bovine serum albumin as the immunogen to immunize BALB/c mice, a novel anti-GCA mAb was generated and characterized. The isotypes of heavy chain and light chain of anti-GCA mAb were examined to be IgG2a and κ, respectively, with a high affinity constant (2.6×108 mol/l). The anti-GCA mAb binds GCA with high specificity and sensitivity, and the 50% inhibitory rate was 77.09 ng/ml. The present study also established a rapid, sensitive and efficient indirect competitive ELISA analysis using this anti-GCA mAb to detect the level of GCA produced by different HCC cell lines. Therefore, the present study may successfully develop a novel method for early HCC diagnosis, and also provide insights for further research and treatment of HCC.
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Affiliation(s)
- Miao Wu
- Department of Immunology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Songhui Zhai
- Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Julia Gao
- Department of Immunology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Dapeng Wei
- Department of Immunology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Jianxin Xue
- Department of Thoracic Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Yuxi Zhou
- Department of Pharmacy, Mianyang People's Hospital, Mianyang, Sichuan 621000, P.R. China
| | - Nan Li
- Department of Immunology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Lijuan Hu
- Department of Immunology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, P.R. China
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23
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He J, Tao X, Wang K, Ding G, Li J, Li QX, Gee SJ, Hammock BD, Xu T. One-step immunoassay for the insecticide carbaryl using a chicken single-chain variable fragment (scFv) fused to alkaline phosphatase. Anal Biochem 2019; 572:9-15. [PMID: 30831096 DOI: 10.1016/j.ab.2019.02.022] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Revised: 12/19/2018] [Accepted: 02/25/2019] [Indexed: 12/14/2022]
Abstract
Immunoassays provide a high-throughput method for monitoring pesticides in foods and the environment. Due to easy generation and capable of being manipulated, chicken single-chain variable fragment (scFv) is attractive in the development of immunoassays for pesticides. Two scFvs (X1 and X2) against the insecticide carbaryl were generated from a chicken immunized with hapten C1 conjugated to keyhole limpet hemocyanin and fused with alkaline phosphatase (AP) to develop a rapid one-step enzyme-linked immunosorbent assay for this pesticide. X2-AP showed higher binding affinity to carbaryl than X1-AP. The X2-AP-based ELISA had a half-maximum signal inhibition concentration of 15 ng mL-1 and a limit of detection of 1.6 ng mL-1. This assay showed negligible cross-reactivity with other carbamate pesticides (<0.1%) and low cross-reactivity with 1-naphthol (5%). The average recoveries of carbaryl spiked in soil, apple and pear samples by the one-step assay ranged from 90% to 114% and agreed well with those of high-performance liquid chromatography. The chicken scFv-based assay showed promise as a high-throughput screening tool for carbaryl in environmental and food matrices.
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Affiliation(s)
- Jinxin He
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Resources and Environmental Sciences, China Agricultural University, Beijing, 100193, China
| | - Xuewu Tao
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Resources and Environmental Sciences, China Agricultural University, Beijing, 100193, China
| | - Kai Wang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Resources and Environmental Sciences, China Agricultural University, Beijing, 100193, China
| | - Guochun Ding
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Resources and Environmental Sciences, China Agricultural University, Beijing, 100193, China
| | - Ji Li
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Resources and Environmental Sciences, China Agricultural University, Beijing, 100193, China
| | - Qing X Li
- Department of Molecular Biosciences and Bioengineering, University of Hawaii at Manoa, 1955 East-West Road, Honolulu, Hawaii, 96822, USA
| | - Shirley J Gee
- Department of Entomology and UCD Comprehensive Cancer Center, University of California, Davis, CA, 95616, United States
| | - Bruce D Hammock
- Department of Entomology and UCD Comprehensive Cancer Center, University of California, Davis, CA, 95616, United States
| | - Ting Xu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Resources and Environmental Sciences, China Agricultural University, Beijing, 100193, China.
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24
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He Q, Chen Y, Shen D, Cui X, Zhang C, Yang H, Zhong W, Eremin SA, Fang Y, Zhao S. Development of a surface plasmon resonance immunosensor and ELISA for 3-nitrotyrosine in human urine. Talanta 2018; 195:655-661. [PMID: 30625597 DOI: 10.1016/j.talanta.2018.11.110] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Revised: 11/21/2018] [Accepted: 11/29/2018] [Indexed: 12/20/2022]
Abstract
3-Nitrotyrosine (3-NT) is thought to be a relevant biomarker of nitrosative stress which is associated with many inflammatory and chronic diseases. It is necessary to develop confidential method for specific and sensitive 3-NT detection. In this paper, on the basis of anti-3-NT specific antibody, we developed a label-free indirect competitive surface plasmon resonance (SPR) immunosensor and ELISA for the detection of 3-NT. Under the optimized conditions, the SPR immunosensor can obtain a linear range of 0.17-6.07 μg/mL and a limit of detection (LOD) of 0.12 μg/mL while the ELISA can reach 0.33-9.94 μg/mL and a LOD of 0.24 μg/mL.The selectivity of 3-NT was also testified by six kinds of amino acid analogues. Besides, the developed SPR immunosensor was compared thoroughly with a conventional ELISA in spiked analysis of urine samples. Good recoveries and correlation between these two methods were observed (R2 = 0.964). Therefore, it is concluded that the automated SPR platform can be applied to quantify 3-NT in biological samples with its sensitivity, accuracy, and real-timing.
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Affiliation(s)
- Qiyi He
- Department of Pharmaceutical Engineering, Faculty of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, People's Republic of China.
| | - Yingshan Chen
- Department of Pharmaceutical Engineering, Faculty of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, People's Republic of China.
| | - Ding Shen
- Department of Pharmaceutical Engineering, Faculty of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, People's Republic of China.
| | - Xiping Cui
- Department of Pharmaceutical Engineering, Faculty of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, People's Republic of China.
| | - Chunguo Zhang
- Department of Pharmaceutical Engineering, Faculty of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, People's Republic of China.
| | - Huiyi Yang
- Department of Pharmaceutical Engineering, Faculty of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, People's Republic of China.
| | - Wenying Zhong
- Department of Pharmaceutical Engineering, Faculty of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, People's Republic of China.
| | - Sergei A Eremin
- Faculty of Chemistry, M. V. Lomonosov Moscow State University, 119991 Moscow, Russia; National Research Technical University MISiS, 119049 Moscow, Russia.
| | - Yanxiong Fang
- Department of Pharmaceutical Engineering, Faculty of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, People's Republic of China.
| | - Suqing Zhao
- Department of Pharmaceutical Engineering, Faculty of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, People's Republic of China.
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Nanobody-Alkaline Phosphatase Fusion Protein-Based Enzyme-Linked Immunosorbent Assay for One-Step Detection of Ochratoxin A in Rice. SENSORS 2018; 18:s18114044. [PMID: 30463338 PMCID: PMC6263964 DOI: 10.3390/s18114044] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 11/14/2018] [Accepted: 11/16/2018] [Indexed: 01/23/2023]
Abstract
Ochratoxin A (OTA) has become one a focus of public concern because of its multiple toxic effects and widespread contamination. To monitor OTA in rice, a sensitive, selective, and one-step enzyme-linked immunosorbent assay (ELISA) using a nanobody-alkaline phosphatase fusion protein (Nb28-AP) was developed. The Nb28-AP was produced by auto-induction expression and retained an intact antigen-binding capacity and enzymatic activity. It exhibited high thermal stability and organic solvent tolerance. Under the optimal conditions, the developed assay for OTA could be finished in 20 min with a half maximal inhibitory concentration of 0.57 ng mL-1 and a limit of detection of 0.059 ng mL-1, which was 1.1 times and 2.7 times lower than that of the unfused Nb28-based ELISA. The Nb28-AP exhibited a low cross-reactivity (CR) with ochratoxin B (0.92%) and ochratoxin C (6.2%), and an ignorable CR (<0.10%) with other mycotoxins. The developed Nb-AP-based one-step ELISA was validated and compared with a liquid chromatography-tandem mass spectrometry method. The results show the reliability of Nb-AP-based one-step ELISA for the detection of OTA in rice.
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He Q, Cui X, Shen D, Chen Y, Jiang Z, Lv R, Eremin SA, Zhao S. Development of a simple, rapid and high-throughput fluorescence polarization immunoassay for glycocholic acid in human urine. J Pharm Biomed Anal 2018; 158:431-437. [DOI: 10.1016/j.jpba.2018.06.023] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Revised: 06/12/2018] [Accepted: 06/15/2018] [Indexed: 02/06/2023]
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Cui X, Vasylieva N, Shen D, Barnych B, Yang J, He Q, Jiang Z, Zhao S, Hammock BD. Biotinylated single-chain variable fragment-based enzyme-linked immunosorbent assay for glycocholic acid. Analyst 2018; 143:2057-2065. [PMID: 29629470 PMCID: PMC6449042 DOI: 10.1039/c7an02024d] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Glycocholic acid (GCA) has been identified as a novel selective and sensitive biomarker for hepatocellular carcinoma (HCC). In this work, a recombinant antibody, scFv-G11, which was shown previously to have selective reactivity for GCA, was labeled with biotin using a chemical and an enzymatic method, respectively. The enzymatic method proved superior giving sensitive scFv-biotin preparations. Based on biotinylated scFv against GCA and a biotin-streptavidin system for signal amplification, an indirect competitive biotin-streptavidin-amplified enzyme-linked immunosorbent assay (BA-ELISA) has been established for the sensitive and rapid detection of GCA. Several physiochemical factors that influenced assay performance, such as organic cosolvent, ionic strength, and pH, were studied. Under the optimized conditions, the indirect competitive BA-ELISA based on the obtained biotinylated scFv antibodies indicated that the average concentration required for 50% inhibition of binding (IC50) and the limit of detection (LOD) for GCA were 0.42 μg mL-1 and 0.07 μg mL-1, respectively, and the linear response range extended from 0.14 to 1.24 μg mL-1. Cross-reactivity of biotinylated scFv antibodies with various bile acid analogues was below 1.89%, except for taurocholic acid. The recoveries of GCA from urine samples via this indirect competitive BA-ELISA ranged from 108.3% to 131.5%, and correlated well with liquid chromatography-electrospray tandem mass spectrometry (LC-MS/MS), which indicated the accuracy and reliability of biotinylated scFv-based ELISA in the detection of GCA in urine samples. This study also demonstrates the broad utility of scFv for the development of highly sensitive immunoassays.
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Affiliation(s)
- Xiping Cui
- Department of Pharmaceutical Engineering, Faculty of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, People's Republic of China.
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