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Tao C, Wang J, Zhu Y, Ding C, Shen Z, Sun D, Cao S, Jiang X, Li Y, Liu C, Zhang Q, Li S, Zhang X, Shi Q, Kong D. A highly sensitive fluorescence biosensor for aflatoxins B 1 detection based on polydiacetylene liposomes combined with exonuclease III-assisted recycling amplification. Mikrochim Acta 2024; 191:397. [PMID: 38877314 DOI: 10.1007/s00604-024-06482-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Accepted: 06/03/2024] [Indexed: 06/16/2024]
Abstract
A fluorescence biosensor for determination of aflatoxin B1 (AFB1) based on polydiacetylene (PDA) liposomes and exonuclease III (EXO III)-assisted recycling amplification was developed. The AFB1 aptamer partially hybridizes with complementary DNA (cDNA), which is released upon recognition of AFB1 by the aptamer. Subsequently, the cDNA hybridizes with hairpin H to form double-stranded DNA that undergoes digestion by EXO III, resulting in the cyclic release of cDNA and generation of capture DNA for further reaction. The capture DNA then hybridizes with probe modified on PDA liposomes, leading to aggregation of liposomes and subsequent fluorescence production. This strategy exhibited a limit of detection of 0.18 ng/mL within the linear range 1-100 ng/mL with a determination coefficient > 0.99. The recovery ranged from 92.81 to 106.45%, with relative standard deviations (RSD) between 1.73 and 4.26%, for corn, brown rice, peanut butter, and wheat samples. The stability, accuracy, and specificity of the method demonstrated the applicability for real sample analysis.
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Affiliation(s)
- Chunxu Tao
- School of Grain Science and Technology, Jiangsu University of Science and Technology, Zhenjiang, 212003, Jiangsu, China
| | - Junyan Wang
- School of Grain Science and Technology, Jiangsu University of Science and Technology, Zhenjiang, 212003, Jiangsu, China
| | - Ying Zhu
- School of Grain Science and Technology, Jiangsu University of Science and Technology, Zhenjiang, 212003, Jiangsu, China
| | - Chao Ding
- School of Grain Science and Technology, Jiangsu University of Science and Technology, Zhenjiang, 212003, Jiangsu, China
| | - Zhuoyue Shen
- School of Grain Science and Technology, Jiangsu University of Science and Technology, Zhenjiang, 212003, Jiangsu, China
| | - Danni Sun
- School of Grain Science and Technology, Jiangsu University of Science and Technology, Zhenjiang, 212003, Jiangsu, China
| | - Shanshan Cao
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003, Jiangsu, China
| | - Xinrong Jiang
- The Quality Monitoring Center for Food and Strategic Reserves of Zhenjiang City, Zhenjiang, 212009, Jiangsu, China
| | - Yaqi Li
- School of Grain Science and Technology, Jiangsu University of Science and Technology, Zhenjiang, 212003, Jiangsu, China
- Jiangsu Provincial Engineering Research Center of Grain Bioprocessing, Zhenjiang, 212003, Jiangsu, China
| | - Chang Liu
- School of Grain Science and Technology, Jiangsu University of Science and Technology, Zhenjiang, 212003, Jiangsu, China
- Jiangsu Provincial Engineering Research Center of Grain Bioprocessing, Zhenjiang, 212003, Jiangsu, China
| | - Qi Zhang
- School of Grain Science and Technology, Jiangsu University of Science and Technology, Zhenjiang, 212003, Jiangsu, China
- Jiangsu Provincial Engineering Research Center of Grain Bioprocessing, Zhenjiang, 212003, Jiangsu, China
| | - Shijie Li
- School of Grain Science and Technology, Jiangsu University of Science and Technology, Zhenjiang, 212003, Jiangsu, China
- Jiangsu Provincial Engineering Research Center of Grain Bioprocessing, Zhenjiang, 212003, Jiangsu, China
| | - Xinyan Zhang
- School of Grain Science and Technology, Jiangsu University of Science and Technology, Zhenjiang, 212003, Jiangsu, China
- Jiangsu Provincial Engineering Research Center of Grain Bioprocessing, Zhenjiang, 212003, Jiangsu, China
| | - Qiaoqiao Shi
- School of Grain Science and Technology, Jiangsu University of Science and Technology, Zhenjiang, 212003, Jiangsu, China.
- Jiangsu Provincial Engineering Research Center of Grain Bioprocessing, Zhenjiang, 212003, Jiangsu, China.
| | - Dezhao Kong
- School of Grain Science and Technology, Jiangsu University of Science and Technology, Zhenjiang, 212003, Jiangsu, China.
- Jiangsu Provincial Engineering Research Center of Grain Bioprocessing, Zhenjiang, 212003, Jiangsu, China.
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Adigal SS, Bhandary SV, Hegde N, Nidheesh VR, John RV, Rizvi A, George SD, Kartha VB, Chidangil S. Protein profile analysis of tear fluid with hyphenated HPLC-UV LED-induced fluorescence detection for the diagnosis of dry eye syndrome. RSC Adv 2023; 13:22559-22568. [PMID: 37501778 PMCID: PMC10369224 DOI: 10.1039/d3ra04389d] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 07/12/2023] [Indexed: 07/29/2023] Open
Abstract
Tear fluid contains organic and inorganic constituents, variations in their relative concentrations could provide valuable information and can be useful for the detection of several ophthalmological diseases. This report describes the application of the lab-assembled light-emitting diode (LED)-based high-performance liquid chromatography system for protein profiling of tear fluids to diagnose dry eye disease. Principal Component Analysis (PCA), match/no-match, and Artificial Neural Network (ANN) based binary classification of protein profile data were performed for disease diagnosis. Results from the match/no-match test of the protein profile data showed 94.4% sensitivity and 87.8% specificity. ANN with the leaving one out procedure has given 91.6% sensitivity and 93.9% specificity.
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Affiliation(s)
- Sphurti S Adigal
- Centre of Excellence for Biophotonics, Department of Atomic and Molecular Physics, Manipal Academy of Higher Education Manipal Karnataka India 576104
| | - Sulatha V Bhandary
- Department of Ophthalmology, Kasturba Medical College Manipal Karnataka India 576104
| | - Nagaraj Hegde
- Ato-gear BV Schimmelt 28 5611 ZX Eindhoven Netherlands
| | - V R Nidheesh
- Centre of Excellence for Biophotonics, Department of Atomic and Molecular Physics, Manipal Academy of Higher Education Manipal Karnataka India 576104
| | - Reena V John
- Centre of Excellence for Biophotonics, Department of Atomic and Molecular Physics, Manipal Academy of Higher Education Manipal Karnataka India 576104
| | - Alisha Rizvi
- Department of Ophthalmology, Kasturba Medical College Manipal Karnataka India 576104
| | - Sajan D George
- Centre for Applied Nanotechnology, Department of Atomic and Molecular Physics, Manipal Academy of Higher Education Manipal Karnataka India 567104
| | - V B Kartha
- Centre of Excellence for Biophotonics, Department of Atomic and Molecular Physics, Manipal Academy of Higher Education Manipal Karnataka India 576104
| | - Santhosh Chidangil
- Centre of Excellence for Biophotonics, Department of Atomic and Molecular Physics, Manipal Academy of Higher Education Manipal Karnataka India 576104
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Zhao L, Suo Z, He B, Huang Y, Liu Y, Wei M, Jin H. A fluorescent aptasensor based on nitrogen-doped carbon supported palladium and exonuclease III-assisted signal amplification for sensitive detection of AFB1. Anal Chim Acta 2022; 1226:340272. [DOI: 10.1016/j.aca.2022.340272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 08/05/2022] [Accepted: 08/14/2022] [Indexed: 11/01/2022]
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4
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Lu S, Gao Y, Geng X, Guan Y. Peltier thermoelectric cooler improves both the signal-to-noise ratio and warm-up time of high-power LED induced fluorescence detector and application to aflatoxins. Anal Chim Acta 2022; 1192:339392. [DOI: 10.1016/j.aca.2021.339392] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 12/15/2021] [Accepted: 12/20/2021] [Indexed: 11/25/2022]
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Huang Q, Lin X, Chen D, Tong QX. Carbon Dots/α-Fe 2O 3-Fe 3O 4 nanocomposite: Efficient synthesis and application as a novel electrochemical aptasensor for the ultrasensitive determination of aflatoxin B1. Food Chem 2021; 373:131415. [PMID: 34710699 DOI: 10.1016/j.foodchem.2021.131415] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 09/20/2021] [Accepted: 10/13/2021] [Indexed: 12/21/2022]
Abstract
Developing an effective method for the detection of aflatoxin B1 (AFB1) remains an arduous task due to the high toxicity of AFB1 to a health concern. In this study, a sensitive and reliable electrochemical aptasensor based on carbon dots/α-Fe2O3-Fe3O4 nanocomposite (CDs/α-Fe2O3-Fe3O4) is constructed for the determination of AFB1. The CDs have good electrical conductivity and large specific surface areas to improve the aptasensor's sensitivity. The α-Fe2O3-Fe3O4 can not only improve the catalytic performance of the aptasensor but also have magnetism, which can realize the recovery of CDs/α-Fe2O3-Fe3O4 to avoid material waste and environmental pollution. This electrochemical aptasensor can achieve a good linear (0.001-100.0 nM) and excellent detection limit (0.5 pM) for the determination of AFB1. In addition, the aptasensor was also applied to determine AFB1 in beer, rice, and peanuts, all results were in good agreement with HPLC, indicating that the electrochemical aptasensor has a broad application prospect.
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Affiliation(s)
- Qitong Huang
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases, Ministry of Education, Key Laboratory of Biomaterials and Biofabrication in Tissue Engineering of Jiangxi Province, Scientific Research Center, School of Medical and Information Engineering, Gannan Medical University, Jiangxi 341000, PR China; Department of Chemistry, Key Laboratory for Preparation and Application of Ordered Structural Material of Guangdong Province, Shantou University, Guangdong 515063, PR China
| | - Xiaofeng Lin
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases, Ministry of Education, Key Laboratory of Biomaterials and Biofabrication in Tissue Engineering of Jiangxi Province, Scientific Research Center, School of Medical and Information Engineering, Gannan Medical University, Jiangxi 341000, PR China; Department of Chemistry, Key Laboratory for Preparation and Application of Ordered Structural Material of Guangdong Province, Shantou University, Guangdong 515063, PR China
| | - Dejian Chen
- Xiamen Institute of Rare-earth Materials, Haixi Institutes, Chinese Academy of Sciences, Fujian 361021, PR China
| | - Qing-Xiao Tong
- Department of Chemistry, Key Laboratory for Preparation and Application of Ordered Structural Material of Guangdong Province, Shantou University, Guangdong 515063, PR China.
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[Progress of sample preparation and analytical methods of dried fruit foods]. Se Pu 2021; 39:958-967. [PMID: 34486835 PMCID: PMC9404242 DOI: 10.3724/sp.j.1123.2021.06030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
坚果、果脯等干果类食品含有丰富的营养成分,深受国内外广大消费者的喜爱。但这些食品在果实生产、加工、储运时会使用农药或产生霉变等,造成干果中农药、重金属、霉菌毒素或添加剂等有害成分残留,甚至超过国家限量要求,带来严重的食品安全问题。因此,加强干果类食品的质量监督具有重要的经济和社会意义。但干果类食品基质复杂,有害物质种类多,结构和性质差异大,含量低,其分析检测需要快速高效的样品前处理技术和准确灵敏的分析检测方法。该文主要综述了近十年来干果类食品中有害物质的样品前处理及分析检测方法研究进展。其中样品前处理方法主要包括各种场辅助萃取法、相分离法和衍生化萃取方法等。场辅助萃取法主要是借助超声波和微波场等外场(协同)作用加快干果中有害物质的溶出速度,提高其萃取效率。相分离法,包括固相(微)萃取、分散固相萃取和液相(微)萃取法等,具有溶剂消耗少、分离富集效率高的优势,是干果样品分析中较常使用的前处理方法。该文还重点介绍了干果中各类有害成分分析检测技术,主要包括色谱、原子光谱、无机质谱、电化学分析等常规实验室方法,以及一些适用于现场分析的快速检测技术,并以此为基础,展望了干果类食品中有害物质分析检测技术的发展趋势。
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7
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Handheld laser-induced fluorescence detection systems with different optical configurations. Talanta 2021; 230:122329. [PMID: 33934786 DOI: 10.1016/j.talanta.2021.122329] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 03/17/2021] [Accepted: 03/18/2021] [Indexed: 11/22/2022]
Abstract
There is a growing urgent requirement for miniaturized laser-induced fluorescence (LIF) detection systems in many research fields. In this work, miniaturized LIF detectors with three different optical configurations of orthogonal, confocal, and oblique were developed, using a laser diode as the excitation source and a photodiode as the photodetector. The computer simulation and experimental methods were used to investigate the distributions of laser scattered light and fluorescent light near the detection window. Other conditions including the solution preparation, sample flow rate, alignment method and filter model were also optimized. Under the optimized conditions, the detection limits of sodium fluorescein for orthogonal and confocal LIF detectors were 40 pM and 50 pM, respectively, while the limit of detection (LOD) for oblique LIF detector were 1 nM (45°) and 7 nM (67.5°). We further built a fully integrated handheld orthogonal LIF detector with a total size of 50 × 20 × 46 mm3, a cost of $380, and a detection limit of 10 pM for sodium fluorescein. It is expected that such a LIF detector could be applied in field analysis as a portable instrument or in other analysis systems as a detection module.
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Davis JJ, Foster SW, Grinias JP. Low-cost and open-source strategies for chemical separations. J Chromatogr A 2021; 1638:461820. [PMID: 33453654 PMCID: PMC7870555 DOI: 10.1016/j.chroma.2020.461820] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 12/12/2020] [Accepted: 12/14/2020] [Indexed: 12/18/2022]
Abstract
In recent years, a trend toward utilizing open access resources for laboratory research has begun. Open-source design strategies for scientific hardware rely upon the use of widely available parts, especially those that can be directly printed using additive manufacturing techniques and electronic components that can be connected to low-cost microcontrollers. Open-source software eliminates the need for expensive commercial licenses and provides the opportunity to design programs for specific needs. In this review, the impact of the "open-source movement" within the field of chemical separations is described, primarily through a comprehensive look at research in this area over the past five years. Topics that are covered include general laboratory equipment, sample preparation techniques, separations-based analysis, detection strategies, electronic system control, and software for data processing. Remaining hurdles and possible opportunities for further adoption of open-source approaches in the context of these separations-related topics are also discussed.
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Affiliation(s)
- Joshua J Davis
- Department of Chemistry & Biochemistry, Rowan University, Glassboro, NJ 08028, United States
| | - Samuel W Foster
- Department of Chemistry & Biochemistry, Rowan University, Glassboro, NJ 08028, United States
| | - James P Grinias
- Department of Chemistry & Biochemistry, Rowan University, Glassboro, NJ 08028, United States.
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Xi Q, Shi M, Geng X, Wang X, Guan Y. Spherical Dichroic Reflector Improves Limit of Detection in Laser-Induced Fluorescence Detection. Anal Chem 2020; 92:8680-8684. [PMID: 32498508 DOI: 10.1021/acs.analchem.0c01180] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A miniature laser-induced fluorescence (mLIF) detector utilizing a novel spherical dichroic reflector (SDR), an unconventional long working distance high magnification objective, an uncommon broadband emission-matched excitation filter pair, and a silicon-based photodiode detector assembly instead of a photomultiplier tube was developed and evaluated. The detection cell was placed at the spherical center of the SDR instead of the regular focus, yielding a 1.8× signal-to-noise ratio (SNR) improvement. Different from previous works, the use of a 40× objective with a long working distance of 5.38 mm and a broadband BP 527-70 nm emission filter with matched BP 450-30 nm excitation filter improved SNR to 4.6× and 1.9×, respectively. By flow injection analysis (FIA) evaluation, the limit of detection (LOD; 3σ method) for fluorescein sodium was 1.5 × 10-13 M or 8.9 fluorescein molecules in 98 pL detection volume, which was the lowest level of LIFs evaluated by FIA mode. The analysis of three kinds of amino acids with LODs at sub pM to fM level (the lowest levels, hundreds of times lower than previous works using normal capillary) demonstrated the potential of the mLIF in ultratrace analysis of biological and environmental samples, including low copy molecules in a single cell.
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Affiliation(s)
- Qiuying Xi
- CAS Key Laboratory of Separation Sciences for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, People's Republic of China.,School of Optoelectronic Engineering and Instrumentation Science, Dalian University of Technology, No. 2 Linggong Road, Ganjingzi District, Dalian, 116024, People's Republic of China
| | - Meng Shi
- CAS Key Laboratory of Separation Sciences for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, People's Republic of China.,University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
| | - Xuhui Geng
- CAS Key Laboratory of Separation Sciences for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, People's Republic of China
| | - Xiaona Wang
- School of Physics, Dalian University of Technology, No. 2 Linggong Road, Ganjingzi District, Dalian, 116024, People's Republic of China
| | - Yafeng Guan
- CAS Key Laboratory of Separation Sciences for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, People's Republic of China
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A miniaturized and high sensitive dual channel fluorimeter based on compact collinear optical arrangement. Talanta 2020; 211:120698. [PMID: 32070616 DOI: 10.1016/j.talanta.2019.120698] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 12/26/2019] [Accepted: 12/27/2019] [Indexed: 11/21/2022]
Abstract
A miniaturized and high sensitive dual channel fluorimeter was developed and evaluated. It employed collinear optical arrangement, a 365 nm and a 470 nm light emitting diodes (LEDs) as light sources, two photodiodes (PDs) integrated with pre-amplifiers as optoelectronic detectors, and a 12.5 mm × 12.5 mm × 45 mm (width × length × height) quartz cuvette as detection cell. The optical parameters such as spectrum compatibility of dual channel, reshaping lens, the common optical path length (COPL), the common focus lens (CFL), as well as working distance of the cuvette were optimized carefully. It was found that the use of shortened optical path and common focal lens could improve the sensitivity of the dual channel fluorimeter significantly. The limits of detection (LODs) for coumarin, aflatoxin B1, fluorescein sodium, and vitamin B2 were 0.002 μg L-1, 0.006 μg L-1, 0.008 μg L-1, and 0.03 μg L-1, respectively. The dual channel fluorimeter can be used for detection of several categories of substance, such as mycotoxins, polycyclic aromatic hydrocarbons, fluorescein, vitamins, and pathogenic microorganisms etc. As a key component, it can also find application in different disciplines such as fluorescent PCR instruments and 96-well plate fluorescence analyzer.
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Huang W, Tu Z, Ning Z, He Q, Li Y. Development of Real-Time Immuno-PCR Based on Phage Displayed an Anti-Idiotypic Nanobody for Quantitative Determination of Citrinin in Monascus. Toxins (Basel) 2019; 11:toxins11100572. [PMID: 31575068 PMCID: PMC6832940 DOI: 10.3390/toxins11100572] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 09/18/2019] [Accepted: 09/26/2019] [Indexed: 01/01/2023] Open
Abstract
Citrinin (CIT) is a mycotoxin that has been detected in agricultural products, feedstuff, and Monascus products. At present, research has been performed to develop methods for CIT detection, mainly through TLC, HPLC, biosensor, and immunoassay. The immunoassay method is popular with researchers because of its speed, economy, simplicity, and ease of control. However, mycotoxins are inevitably introduced during the determination. Immunoassays require the use of toxins coupled to carrier proteins or enzymes to make competitive antigens. In this study, anti-idiotypic nanobody X27 as CIT mimetic antigen was used as non-toxic surrogate reagents in immunoassay. Therefore, the X27-based real-time immuno-PCR (rtIPCR) method had been established after optimal experiments of annealing temperature and amplification efficiency of real-time PCR, concentration of coating antibody, phage X27, and methyl alcohol. The IC50 value of the established method in the present study is 9.86 ± 2.52 ng/mL, which is nearly equivalent to the traditional phage ELISA method. However, the linear range is of 0.1-1000 ng/mL, which has been broadened 10-fold compared to the phage ELISA method. Besides, the X27-based rtIPCR method has no cross-reactivity to the common mycotoxins, like aflatoxin B1 (AFB1), deoxynivalenol (DON), ochratoxin A (OTA), and zearalenone (ZEN). The method has also been applied to the determination of CIT in rice flour and flour samples, and the recovery was found to be in the range of 90.0-104.6% and 75.8-110.0% respectively. There was no significant difference in the results between the rtIPCR and UPLC-MS. The anti-idiotypic nanobody as a non-toxic surrogate of CIT makes rtIPCR a promising method for actual CIT analysis in Monascus products.
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Affiliation(s)
- Wenping Huang
- State Key Laboratory of Food Science and Technology, Jiangxi-OAI Joint Research Institute, Jiangxi Province Key Laboratory of Modern Analytical Sciences, Nanchang University, Nanchang 330047, China.
| | - Zhui Tu
- State Key Laboratory of Food Science and Technology, Jiangxi-OAI Joint Research Institute, Jiangxi Province Key Laboratory of Modern Analytical Sciences, Nanchang University, Nanchang 330047, China.
| | - Zhenqiang Ning
- State Key Laboratory of Food Science and Technology, Jiangxi-OAI Joint Research Institute, Jiangxi Province Key Laboratory of Modern Analytical Sciences, Nanchang University, Nanchang 330047, China.
| | - Qinghua He
- State Key Laboratory of Food Science and Technology, Jiangxi-OAI Joint Research Institute, Jiangxi Province Key Laboratory of Modern Analytical Sciences, Nanchang University, Nanchang 330047, China.
| | - Yanping Li
- State Key Laboratory of Food Science and Technology, Jiangxi-OAI Joint Research Institute, Jiangxi Province Key Laboratory of Modern Analytical Sciences, Nanchang University, Nanchang 330047, China.
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Šesták J, Planeta J, Kahle V. Nanolitre-scale cell based on L-shaped silica capillary and optical fibre for absorption photometric detection in capillary liquid chromatography. Anal Chim Acta 2019; 1073:99-108. [DOI: 10.1016/j.aca.2019.04.072] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 04/26/2019] [Accepted: 04/27/2019] [Indexed: 10/26/2022]
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