1
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Wang D, Zhang L, Zeng J, Wang S, Li W, Sun Y, Wu W, Tian ZQ, Zhang Z. A sensitive intelligent point-of-care test method for tert-butylhydroquinone in edible oil via a test strip with a smartphone. Food Chem 2024; 460:140625. [PMID: 39089030 DOI: 10.1016/j.foodchem.2024.140625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2024] [Revised: 07/22/2024] [Accepted: 07/23/2024] [Indexed: 08/03/2024]
Abstract
Tert-butylhydroquinone (TBHQ) is easily overused or illegally added to edible oil and attracts a growing concern because of its cytotoxic, liver-damaging, and carcinogenic effects. Thus, a sensitive and intelligent point-of-care testing (iPOCT) method is developed to fulfill the on-site monitoring. This iPOCT method depended on a fluorescent immunochromatographic assay within 15 min. Under optimization, the limit of quantification (LOQ) was calculated as 0.03 μg mL-1. The iPOCT method provided a low limit of detection (LOD) of 0.02 μg mL-1, a wide linear range of 0.03-100 μg mL-1, and great selectivity. Recoveries by the spiking experiments ranged from 97.4% to 103.5% with relative standard deviations (RSDs) of 2.4%-4.9% in soybean, peanut, rapeseed, and corn oil samples. The results showed that the iPOCT method is highly consistent with the high-performance liquid chromatography (HPLC) method.
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Affiliation(s)
- Dan Wang
- School of Bioengineering and Health, State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, Wuhan 430200, PR China; School of Ecology and Environmental, Tibet University, Lhasa 850000, PR China; College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, PR China
| | - Le Zhang
- School of Ecology and Environmental, Tibet University, Lhasa 850000, PR China
| | - Jing Zeng
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Oil Crops, Key Laboratory of Detection for Mycotoxins, National Reference Lab for Biotoxin Test, Hongshan Laboratory, Hubei, Wuhan, 430062, PR China
| | - Shenling Wang
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Oil Crops, Key Laboratory of Detection for Mycotoxins, National Reference Lab for Biotoxin Test, Hongshan Laboratory, Hubei, Wuhan, 430062, PR China
| | - Wangwang Li
- School of Ecology and Environmental, Tibet University, Lhasa 850000, PR China
| | - Yuanlong Sun
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, PR China
| | - Wenqin Wu
- School of Bioengineering and Health, State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, Wuhan 430200, PR China.
| | - Zhi-Quan Tian
- School of Ecology and Environmental, Tibet University, Lhasa 850000, PR China; College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, PR China.
| | - Zhaowei Zhang
- School of Bioengineering and Health, State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, Wuhan 430200, PR China; Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Oil Crops, Key Laboratory of Detection for Mycotoxins, National Reference Lab for Biotoxin Test, Hongshan Laboratory, Hubei, Wuhan, 430062, PR China.
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2
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Chen D, Chen Y, Zhang Y, Du J, Xiao H, Yang Z, Xu J. Multi-class analysis of 100 drug residues in cosmetics using high-performance liquid chromatography-quadrupole time-of-flight high-resolution mass spectrometry. Talanta 2024; 266:124954. [PMID: 37478768 DOI: 10.1016/j.talanta.2023.124954] [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: 03/20/2023] [Revised: 06/25/2023] [Accepted: 07/14/2023] [Indexed: 07/23/2023]
Abstract
Cosmetics are an important aspect of the lives of many people. With an increasing demand for cosmetics, consumers pay more attention to their efficacy and composition. To improve their efficacy, prohibited substances, such as hormones, glucocorticoids, antibiotics, antifungals and antihistamines, may be added to cosmetics. We developed a rapid method for the multi-class analysis of drug residues in toner and lotion cosmetic samples using high-performance liquid chromatography coupled with quadrupole time-of-flight high-resolution mass spectrometry (HPLC-Q-TOF-HRMS). The primary variables in the extraction and purification steps were studied to minimize the interference of the sample matrix. The non-information-dependent sequential window acquisition of all theoretical fragment ion spectra (SWATH®) mode was used to improve the data acquisition efficiency. The secondary product ion peak areas were used for quantification to obtain a satisfactory matrix effects. The validation experiments confirmed that the developed method exhibited good linearity (5-200 ng/L) with correlation coefficients (R) ≥ 0.9902. Our developed method was then successfully applied to 92 real cosmetic samples. The calibration curve established by this method can be used for retrospective quantitative analysis over long durations without re-calibration. This method is efficient and suitable for screening and controlling multi-class prohibited substances in the cosmetics industry to reduce potential risks.
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Affiliation(s)
- Dan Chen
- Guangdong Institute of Sport Science, Guangzhou, 510663, PR China
| | - Ying Chen
- Guangdong Institute of Sport Science, Guangzhou, 510663, PR China
| | - Yuan Zhang
- Guangdong Institute of Sport Science, Guangzhou, 510663, PR China
| | - Juan Du
- Institute of Maternal and Child Health, Wuhan Children's Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430016, PR China
| | - Han Xiao
- Institute of Maternal and Child Health, Wuhan Children's Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430016, PR China
| | - Zong Yang
- Asia Pacific Technical Support Center of SCIEX, Shanghai, 200050, PR China
| | - Jia Xu
- Institute of Maternal and Child Health, Wuhan Children's Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430016, PR China.
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3
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Dey MK, Iftesum M, Devireddy R, Gartia MR. New technologies and reagents in lateral flow assay (LFA) designs for enhancing accuracy and sensitivity. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2023; 15:4351-4376. [PMID: 37615701 DOI: 10.1039/d3ay00844d] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/25/2023]
Abstract
Lateral flow assays (LFAs) are a popular method for quick and affordable diagnostic testing because they are easy to use, portable, and user-friendly. However, LFA design has always faced challenges regarding sensitivity, accuracy, and complexity of the operation. By integrating new technologies and reagents, the sensitivity and accuracy of LFAs can be improved while minimizing the complexity and potential for false positives. Surface enhanced Raman spectroscopy (SERS), photoacoustic techniques, fluorescence resonance energy transfer (FRET), and the integration of smartphones and thermal readers can improve LFA accuracy and sensitivity. To ensure reliable and accurate results, careful assay design and validation, appropriate controls, and optimization of assay conditions are necessary. Continued innovation in LFA technology is crucial to improving the reliability and accuracy of rapid diagnostic testing and expanding its applications to various areas, such as food testing, water quality monitoring, and environmental testing.
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Affiliation(s)
- Mohan Kumar Dey
- Department of Mechanical and Industrial Engineering, Louisiana State University, Baton Rouge, LA 70803, USA.
| | - Maria Iftesum
- Department of Mechanical and Industrial Engineering, Louisiana State University, Baton Rouge, LA 70803, USA.
| | - Ram Devireddy
- Department of Mechanical and Industrial Engineering, Louisiana State University, Baton Rouge, LA 70803, USA.
| | - Manas Ranjan Gartia
- Department of Mechanical and Industrial Engineering, Louisiana State University, Baton Rouge, LA 70803, USA.
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4
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Wen Z, Hu X, Yan R, Wang W, Meng H, Song Y, Wang S, Wang X, Tang Y. A reliable upconversion nanoparticle-based immunochromatographic assay for the highly sensitive determination of olaquindox in fish muscle and water samples. Food Chem 2023; 406:135081. [PMID: 36463602 DOI: 10.1016/j.foodchem.2022.135081] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Revised: 11/19/2022] [Accepted: 11/24/2022] [Indexed: 11/29/2022]
Abstract
Olaquindox residues in food from its illegal use has received great attention. Here, an immunoassay strategy integrating an upconversion nanoparticle (UCNP)-based immunochromatographic strip with a fluorescence reader was proposed for the highly selective and sensitive detection of olaquindox. Polyacrylic acid-functionalized UCNPs were synthesized using a simple ligand exchange process and combined with an olaquindox polyclonal antibody to form a fluorescent probe. This approach achieved a sensitive response and specific recognition of olaquindox. A convenient upconversion fluorescence reader was introduced to implement accurate and sensitive quantitative analysis of olaquindox based on the fluorescence intensity of control and test lines on a strip. Under optimal conditions, the method demonstrated a favorable linear range (0-50 ng/mL) and sensitive detection (1.42 ng/mL, S/N = 3). This method was applied successfully to determine olaquindox in fish muscle and water samples, and results were consistent with an HPLC approach, and considered a promising strategy for monitoring olaquindox residuals.
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Affiliation(s)
- Zhenhua Wen
- College of Food Science and Technology, Hebei Agricultural University, Baoding 071001, China
| | - Xuelian Hu
- College of Food Science and Technology, Hebei Agricultural University, Baoding 071001, China
| | - Rongfang Yan
- College of Food Science and Technology, Hebei Agricultural University, Baoding 071001, China
| | - Wenxiu Wang
- College of Food Science and Technology, Hebei Agricultural University, Baoding 071001, China
| | - He Meng
- College of Food Science and Technology, Hebei Agricultural University, Baoding 071001, China
| | - Yang Song
- College of Life Sciences, Tianjin Normal University, Tianjin 300387, China
| | - Shuo Wang
- College of Food Science and Technology, Hebei Agricultural University, Baoding 071001, China; Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin 300071, China
| | - Xianghong Wang
- College of Food Science and Technology, Hebei Agricultural University, Baoding 071001, China
| | - Yiwei Tang
- College of Food Science and Technology, Hebei Agricultural University, Baoding 071001, China.
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5
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Advances on Hormones in Cosmetics: Illegal Addition Status, Sample Preparation, and Detection Technology. Molecules 2023; 28:molecules28041980. [PMID: 36838967 PMCID: PMC9959700 DOI: 10.3390/molecules28041980] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 02/11/2023] [Accepted: 02/16/2023] [Indexed: 02/22/2023] Open
Abstract
Owing to the rapid development of the cosmetic industry, cosmetic safety has become the focus of consumers' attention. However, in order to achieve the desired effects in the short term, the illegal addition of hormones in cosmetics has emerged frequently, which could induce skin problems and even skin cancer after long-term use. Therefore, it is of great significance to master the illegal addition in cosmetics and effectively detect the hormones that may exist in cosmetics. In this review, we analyze the illegally added hormone types, detection values, and cosmetic types, as well as discuss the hormone risks in cosmetics for human beings, according to the data in unqualified cosmetics in China from 2017 to 2022. Results showed that although the frequency of adding hormones in cosmetics has declined, hormones are still the main prohibited substances in illegal cosmetics, especially facial masks. Because of the complex composition and the low concentration of hormones in cosmetics, it is necessary to combine efficient sample preparation technology with instrumental analysis. In order to give the readers a comprehensive overview of hormone analytical technologies in cosmetics, we summarize the advanced sample preparation techniques and commonly used detection techniques of hormones in cosmetics in the last decade (2012-2022). We found that ultrasound-assisted extraction, solid phase extraction, and microextraction coupled with chromatographic analysis are still the most widely used analytical technologies for hormones in cosmetics. Through the investigation of market status, the summary of sample pretreatment and detection technologies, as well as the discussion of their development trends in the future, our purpose is to provide a reference for the supervision of illegal hormone residues in cosmetics.
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6
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Jiang W, Yi J, Li X, He F, Niu N, Chen L. A Comprehensive Review on Upconversion Nanomaterials-Based Fluorescent Sensor for Environment, Biology, Food and Medicine Applications. BIOSENSORS 2022; 12:1036. [PMID: 36421153 PMCID: PMC9688752 DOI: 10.3390/bios12111036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 11/07/2022] [Accepted: 11/14/2022] [Indexed: 06/16/2023]
Abstract
Near-infrared-excited upconversion nanoparticles (UCNPs) have multicolor emissions, a low auto-fluorescence background, a high chemical stability, and a long fluorescence lifetime. The fluorescent probes based on UCNPs have achieved great success in the analysis of different samples. Here, we presented the research results of UCNPs probes utilized in analytical applications including environment, biology, food and medicine in the last five years; we also introduced the design and construction of upconversion optical sensing platforms. Future trends and challenges of the UCNPs used in the analytical field have also been discussed with particular emphasis.
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Affiliation(s)
- Wei Jiang
- College of Chemistry, Chemical Engineering and Resource Utilization, Key Laboratory of Forest Plant Ecology, Northeast Forestry University, 26 Hexing Road, Harbin 150040, China
| | - Jiaqi Yi
- College of Chemistry, Chemical Engineering and Resource Utilization, Key Laboratory of Forest Plant Ecology, Northeast Forestry University, 26 Hexing Road, Harbin 150040, China
| | - Xiaoshuang Li
- College of Chemistry, Chemical Engineering and Resource Utilization, Key Laboratory of Forest Plant Ecology, Northeast Forestry University, 26 Hexing Road, Harbin 150040, China
| | - Fei He
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
| | - Na Niu
- College of Chemistry, Chemical Engineering and Resource Utilization, Key Laboratory of Forest Plant Ecology, Northeast Forestry University, 26 Hexing Road, Harbin 150040, China
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
| | - Ligang Chen
- College of Chemistry, Chemical Engineering and Resource Utilization, Key Laboratory of Forest Plant Ecology, Northeast Forestry University, 26 Hexing Road, Harbin 150040, China
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7
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Sena-Torralba A, Álvarez-Diduk R, Parolo C, Piper A, Merkoçi A. Toward Next Generation Lateral Flow Assays: Integration of Nanomaterials. Chem Rev 2022; 122:14881-14910. [PMID: 36067039 PMCID: PMC9523712 DOI: 10.1021/acs.chemrev.1c01012] [Citation(s) in RCA: 67] [Impact Index Per Article: 33.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
![]()
Lateral flow assays (LFAs) are currently the most used
point-of-care
sensors for both diagnostic (e.g., pregnancy test, COVID-19 monitoring)
and environmental (e.g., pesticides and bacterial monitoring) applications.
Although the core of LFA technology was developed several decades
ago, in recent years the integration of novel nanomaterials as signal
transducers or receptor immobilization platforms has brought improved
analytical capabilities. In this Review, we present how nanomaterial-based
LFAs can address the inherent challenges of point-of-care (PoC) diagnostics
such as sensitivity enhancement, lowering of detection limits, multiplexing,
and quantification of analytes in complex samples. Specifically, we
highlight the strategies that can synergistically solve the limitations
of current LFAs and that have proven commercial feasibility. Finally,
we discuss the barriers toward commercialization and the next generation
of LFAs.
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Affiliation(s)
- Amadeo Sena-Torralba
- Nanobioelectronics & Biosensors Group, Institut Català de Nanociència I Nanotecnologia (ICN2), CSIC and The Barcelona Institute of Science and Technology (BIST), Campus UAB, Bellaterra, 08193 Barcelona, Spain.,Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Universitat Politècnica de València, Universitat de València, Camino de Vera s/n, 46022 Valencia, Spain
| | - Ruslan Álvarez-Diduk
- Nanobioelectronics & Biosensors Group, Institut Català de Nanociència I Nanotecnologia (ICN2), CSIC and The Barcelona Institute of Science and Technology (BIST), Campus UAB, Bellaterra, 08193 Barcelona, Spain
| | - Claudio Parolo
- Barcelona Institute for Global Health (ISGlobal) Hospital Clínic-Universitat de Barcelona, Carrer del Rosselló 132, 08036 Barcelona, Spain
| | - Andrew Piper
- Nanobioelectronics & Biosensors Group, Institut Català de Nanociència I Nanotecnologia (ICN2), CSIC and The Barcelona Institute of Science and Technology (BIST), Campus UAB, Bellaterra, 08193 Barcelona, Spain
| | - Arben Merkoçi
- Nanobioelectronics & Biosensors Group, Institut Català de Nanociència I Nanotecnologia (ICN2), CSIC and The Barcelona Institute of Science and Technology (BIST), Campus UAB, Bellaterra, 08193 Barcelona, Spain.,Catalan Institution for Research and Advanced Studies (ICREA), Pg. Lluís Companys 23, 08010 Barcelona, Spain
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8
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Chao M, Xu X, Wu A, Song S, Kuang H, Xu C, Liu L. Gold immunochromatographic strip assay for the detection of triamcinolone acetonide and budesonide in milk. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2022; 39:1531-1543. [PMID: 35867536 DOI: 10.1080/19440049.2022.2099984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
A monoclonal antibody against triamcinolone acetonide (TCA) and budesonide (BUD) was prepared using a hapten that was generated by introducing a carboxyl group into the structure of TCA. Based on the prepared monoclonal antibody, a gold nanoparticle-based lateral-flow immunoassay (GLFA) was developed with the ability to screen TCA and BUD in milk. The visible limits of detection of the GLFA for the analysis of TCA and BUD were 0.1 and 0.5 ng/mL with a cutoff value of 5 and 10 ng/mL, respectively, in milk. Average recoveries of TCA and BUD in milk were 92.0-102.2% and 96.0-98.8% with a good correlation between the results from the GLFA and LC-MS/MS analysis. These results demonstrated that the GLFA method for the rapid detection of TCA and BUD in milk samples is reliable and sensitive.
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Affiliation(s)
- Mengjia Chao
- State Key Lab of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, People's Republic of China
| | - Xinxin Xu
- State Key Lab of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, People's Republic of China
| | - Aihong Wu
- State Key Lab of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, People's Republic of China
| | - Shanshan Song
- State Key Lab of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, People's Republic of China
| | - Hua Kuang
- State Key Lab of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, People's Republic of China
| | - Chuanlai Xu
- State Key Lab of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, People's Republic of China
| | - Liqiang Liu
- State Key Lab of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, People's Republic of China
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9
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Shapoval O, Brandmeier JC, Nahorniak M, Oleksa V, Makhneva E, Gorris HH, Farka Z, Horák D. PMVEMA-coated upconverting nanoparticles for upconversion-linked immunoassay of cardiac troponin. Talanta 2022; 244:123400. [PMID: 35395457 DOI: 10.1016/j.talanta.2022.123400] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 03/16/2022] [Accepted: 03/18/2022] [Indexed: 11/18/2022]
Abstract
Surface engineering of upconverting nanoparticles (UCNPs) is crucial for their bioanalytical applications. Here, an antibody specific to cardiac troponin I (cTnI), an important biomarker for acute myocardial infection, was covalently immobilized on the surface of UCNPs to prepare a label for the detection of cTnI biomarker in an upconversion-linked immunoassay (ULISA). Core-shell UCNPs (NaYF4:Yb,Tm@NaYF4) were first coated with poly(methyl vinyl ether-alt-maleic acid) (PMVEMA) and then conjugated to antibodies. The morphology (size and uniformity), hydrodynamic diameter, chemical composition, and amount of coating on the of UCNPs, as well as their upconversion luminescence, colloidal stability, and leaching of Y3+ ions into the surrounding media, were determined. The developed ULISA allowed reaching a limit of detection (LOD) of 0.13 ng/ml and 0.25 ng/ml of cTnI in plasma and serum, respectively, which represents 12- and 2-fold improvement to conventional enzyme-linked immunosorbent based on the same immunoreagents.
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Affiliation(s)
- Oleksandr Shapoval
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 162 06, Prague 6, Czech Republic
| | - Julian C Brandmeier
- Department of Biochemistry, Faculty of Science, Masaryk University, Kamenice 5, 625 00, Brno, Czech Republic
| | - Mykhailo Nahorniak
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 162 06, Prague 6, Czech Republic
| | - Viktoriia Oleksa
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 162 06, Prague 6, Czech Republic
| | - Ekaterina Makhneva
- Department of Biochemistry, Faculty of Science, Masaryk University, Kamenice 5, 625 00, Brno, Czech Republic
| | - Hans H Gorris
- Department of Biochemistry, Faculty of Science, Masaryk University, Kamenice 5, 625 00, Brno, Czech Republic
| | - Zdeněk Farka
- Department of Biochemistry, Faculty of Science, Masaryk University, Kamenice 5, 625 00, Brno, Czech Republic
| | - Daniel Horák
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 162 06, Prague 6, Czech Republic.
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10
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Shahcheraghi N, Golchin H, Sadri Z, Tabari Y, Borhanifar F, Makani S. Nano-biotechnology, an applicable approach for sustainable future. 3 Biotech 2022; 12:65. [PMID: 35186662 PMCID: PMC8828840 DOI: 10.1007/s13205-021-03108-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 12/30/2021] [Indexed: 12/17/2022] Open
Abstract
Nanotechnology is one of the most emerging fields of research within recent decades and is based upon the exploitation of nano-sized materials (e.g., nanoparticles, nanotubes, nanomembranes, nanowires, nanofibers and so on) in various operational fields. Nanomaterials have multiple advantages, including high stability, target selectivity, and plasticity. Diverse biotic (e.g., Capsid of viruses and algae) and abiotic (e.g., Carbon, silver, gold and etc.) materials can be utilized in the synthesis process of nanomaterials. "Nanobiotechnology" is the combination of nanotechnology and biotechnology disciplines. Nano-based approaches are developed to improve the traditional biotechnological methods and overcome their limitations, such as the side effects caused by conventional therapies. Several studies have reported that nanobiotechnology has remarkably enhanced the efficiency of various techniques, including drug delivery, water and soil remediation, and enzymatic processes. In this review, techniques that benefit the most from nano-biotechnological approaches, are categorized into four major fields: medical, industrial, agricultural, and environmental.
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Affiliation(s)
- Nikta Shahcheraghi
- Department of Engineering, University of Science and Culture, Tehran, Iran
| | - Hasti Golchin
- Faculty of Biological Sciences, Kharazmi University, No.43.South Moffateh Ave., 15719-14911 Tehran, Iran
| | - Zahra Sadri
- Faculty of Biological Sciences, Kharazmi University, No.43.South Moffateh Ave., 15719-14911 Tehran, Iran
| | - Yasaman Tabari
- Faculty of Sciences and Advanced Technologies, Science and Culture University, 1461968151 Tehran, Iran
| | - Forough Borhanifar
- Faculty of Biological Sciences, Kharazmi University, No.43.South Moffateh Ave., 15719-14911 Tehran, Iran
| | - Shadi Makani
- Faculty of Biological Sciences, Kharazmi University, No.43.South Moffateh Ave., 15719-14911 Tehran, Iran
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11
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Wu N, Wei Y, Pan L, Yang X, Qi H, Gao Q, Zhang C, Li CZ. Sensitive and rapid determination of heat shock protein 70 using lateral flow immunostrips and upconversion nanoparticle fluorescence probes. Analyst 2022; 147:3444-3450. [DOI: 10.1039/d2an00742h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Heat shock protein 70 (Hsp70), belonging to the heat shock protein (HSP) family, is reported to be a potential diagnostic biomarker.
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Affiliation(s)
- Nengying Wu
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710062, P.R. China
- Guizhou Academy of Forestry, Guiyang, 550000, P.R. China
| | - Yuxi Wei
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710062, P.R. China
| | - Lanlan Pan
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710062, P.R. China
| | - Xiaolin Yang
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710062, P.R. China
| | - Honglan Qi
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710062, P.R. China
| | - Qiang Gao
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710062, P.R. China
| | - Chengxiao Zhang
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710062, P.R. China
| | - Chen-zhong Li
- Department of Biochemistry and Molecular Biology, Tulane University School of Medicine, Tulane University School of Medicine, New Orleans, LA, USA
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12
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Ensuring food safety using fluorescent nanoparticles-based immunochromatographic test strips. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.10.025] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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13
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Immunological Analytical Techniques for Cosmetics Quality Control and Process Monitoring. Processes (Basel) 2021. [DOI: 10.3390/pr9111982] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Cosmetics analysis represents a rapidly expanding field of analytical chemistry as new cosmetic formulations are increasingly in demand on the market and the ingredients required for their production are constantly evolving. Each country applies strict legislation regarding substances in the final product that must be prohibited or regulated. To verify the compliance of cosmetics with current regulations, official analytical methods are available to reveal and quantitatively determine the analytes of interest. However, since ingredients, and the lists of regulated/prohibited substances, rapidly change, dedicated analytical methods must be developed ad hoc to fulfill the new requirements. Research focuses on finding innovative techniques that allow a rapid, inexpensive, and sensitive detection of the target analytes in cosmetics. Among the different methods proposed, immunological techniques are gaining interest, as they make it possible to carry out low-cost analyses on raw materials and finished products in a relatively short time. Indeed, immunoassays are based on the specific and selective antibody/antigen reaction, and they have been extensively applied for clinical diagnostic, alimentary quality control and environmental security purposes, and even for routine analysis. Since the complexity and variability of the matrices, as well as the great variety of compounds present in cosmetics, are analogous with those from food sources, immunological methods could also be applied successfully in this field. Indeed, this would provide a valid approach for the monitoring of industrial production chains even in developing countries, which are currently the greatest producers of cosmetics and the major exporters of raw materials. This review aims to highlight the immunological techniques proposed for cosmetics analysis, focusing on the detection of prohibited/regulated compounds, bacteria and toxins, and allergenic substances, and the identification of counterfeits.
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Zhao P, Huang X, Tao H, Li Y, Sun L, Hu J. The antibody orientational labeled by StaphylococcusA protein improve the sensitivity of Gold Immunochromatography Assay. Anal Biochem 2021; 641:114403. [PMID: 34610335 DOI: 10.1016/j.ab.2021.114403] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 09/18/2021] [Accepted: 09/30/2021] [Indexed: 11/19/2022]
Abstract
The antibody of Cry1Ab-51 was immobilized orientationly in a simple and effective way on Colloidal gold nanoparticles(CGNP) by The staphylococcal protein A(SPA) affinity with the FC fragement of mouse IgG.The lateral flow detection test strip assembled with the probe by orientational labeled method at the optimum operational conditons (new probe) is 10 times more sensitive than the test strip assembled with the probe labeled by Adsorption(conventionally probe). The affinity experiment have shown that the affinity of the new probe is much higher than the conventionally probe. The Immunochromatography gold strip(ICG strip) assembled by the new probe was highly specific to Cry1Ab with no cross-reaction with other transgenic proteins. And it was proved that the specificity of the new probe have no significant change. Furthermore, the ICG strips assembled by the new probe could be stored for 12 months under dry conditions without significant loss of sensitivity.The Orientational labeling the antibodies with Staphylococcus A protein on Colloidal gold proved to be suitable for improving the sensitivity of the ICG strips.
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Affiliation(s)
- Penghua Zhao
- Shaanxi Province Research Center of Cell Immunological Engineering and Technology, Central Lab of Shaanxi Provincial People's Hospital, Xi'an, 710068, China.
| | - Xiaoyan Huang
- Shaanxi Provincial Key Laboratory of Infection and Immune Diseases, Shaanxi Provincial People's Hospital, Xi'an, 710068, China
| | - Haiqiang Tao
- Shaanxi HaiNa Bio-tech Co. Ltd., Xi'an, 710032, China
| | - Yaping Li
- Shaanxi Province Research Center of Cell Immunological Engineering and Technology, Central Lab of Shaanxi Provincial People's Hospital, Xi'an, 710068, China
| | - Lijun Sun
- Shaanxi Province Research Center of Cell Immunological Engineering and Technology, Central Lab of Shaanxi Provincial People's Hospital, Xi'an, 710068, China
| | - Jun Hu
- Shaanxi Province Research Center of Cell Immunological Engineering and Technology, Central Lab of Shaanxi Provincial People's Hospital, Xi'an, 710068, China
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Wang X, Xue CH, Yang D, Jia ST, Ding YR, Lei L, Gao KY, Jia TT. Modification of a nitrocellulose membrane with nanofibers for sensitivity enhancement in lateral flow test strips. RSC Adv 2021; 11:26493-26501. [PMID: 35479983 PMCID: PMC9037416 DOI: 10.1039/d1ra04369b] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Accepted: 07/23/2021] [Indexed: 01/16/2023] Open
Abstract
Lateral-flow analysis (LFA) is a convenient, low-cost, and rapid detection method, which has been widely used for screening of diseases. However, sensitivity enhancement in LFA is still a focus in this field and remains challenging. Herein, we propose an electrospinning coating method to modify the conventional nitrocellulose (NC) membrane and optimize the liquid flow rate for enhancing the sensitivity of the NC based LFA strips in the detection of human chorionic gonadotropin (HCG) and luteinizing hormone (LH). It can be seen that coating the NC membrane with nitrocellulose fibers could obtain a NC based strip with HCG and LH detection limits of 0.22 and 0.36 mIU mL-1 respectively, and a quantitative linear range of 0.5-500 mIU mL-1. The results show that electrospinning is effective in modifying conventional NC membranes for LFA applications.
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Affiliation(s)
- Xue Wang
- College of Environmental Science and Engineering, Shaanxi University of Science and Technology Xi'an 710021 China
| | - Chao-Hua Xue
- College of Environmental Science and Engineering, Shaanxi University of Science and Technology Xi'an 710021 China
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology Xi'an 710021 China
| | - Dong Yang
- College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology Xi'an 710021 China
| | - Shun-Tian Jia
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology Xi'an 710021 China
| | - Ya-Ru Ding
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology Xi'an 710021 China
| | - Lei Lei
- College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology Xi'an 710021 China
| | - Ke-Yi Gao
- College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology Xi'an 710021 China
| | - Tong-Tong Jia
- College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology Xi'an 710021 China
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Hu Q, Wu Q, Huang F, Xu Z, Zhou L, Zhao S. Multicolor Coding Up-Conversion Nanoplatform for Rapid Screening of Multiple Foodborne Pathogens. ACS APPLIED MATERIALS & INTERFACES 2021; 13:26782-26789. [PMID: 34077176 DOI: 10.1021/acsami.1c05522] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Technologies for rapid screening of multiple foodborne pathogens have been urgently needed because of the complex food matrix and high outbreaks of foodborne diseases. In this study, multicolor coding up-conversion nanoparticles (UCNPs) were synthesized and applied for rapid and simultaneous detection of five kinds of foodborne pathogens. The multicolor coding UCNPs were obtained through doping different concentrations of a sensitizer (Yb3+) on the shell of the synthesized NaYF4:Yb3+, Tm3+ (20%/2%)@NaYF4:Yb3+, and Er3+ (x %/2%) core/shell nanocrystals. All the UCNPs could emit red and green luminescence simultaneously once excited with near-infrared wavelength (980 nm), and the ratio of red and green (R/G ratio) emission light intensity of each kind of UCNPs varied depending on the Yb3+ doping concentration. In addition, the magnetic nanoparticles (MNPs) modified with the monoclonal antibodies (mAbs) against the target bacteria were used to capture and separate the bacteria, resulting in obtaining the MNP-bacterium complexes. Different UCNPs with multicolor coding acted as signal probes were also modified with the mAbs to react with the MNP-bacterium complexes to form the MNP-bacterium-UCNP sandwich complexes. After the sandwich complexes were excited with a wavelength of 980 nm, the obtained R/G ratios and the green photoluminescence intensity (PL intensity) could be used to distinguish and quantitatively detect foodborne pathogens, respectively. This proposed nanoplatform could detect five foodborne pathogens simultaneously within 2 h with good sensitivity and specificity, showing great potential for multiplex detection of other targets in the fields of medical diagnosis and food security.
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Affiliation(s)
- Qiushi Hu
- National Key Laboratory of Biochemical Engineering, PLA Key Laboratory of Biopharmaceutical Production & Formulation Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, P. R. China
- Institute of Optoelectronics Technology, Key Laboratory of Luminescence and Optical Information, Ministry of Education, Beijing Jiaotong University, Beijing 100044, P. R. China
| | - Qixiao Wu
- Institute of Optoelectronics Technology, Key Laboratory of Luminescence and Optical Information, Ministry of Education, Beijing Jiaotong University, Beijing 100044, P. R. China
| | - Fengchun Huang
- National Key Laboratory of Biochemical Engineering, PLA Key Laboratory of Biopharmaceutical Production & Formulation Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, P. R. China
- Innovation Academy for Green Manufacture, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Zheng Xu
- Institute of Optoelectronics Technology, Key Laboratory of Luminescence and Optical Information, Ministry of Education, Beijing Jiaotong University, Beijing 100044, P. R. China
| | - Lei Zhou
- National Key Laboratory of Biochemical Engineering, PLA Key Laboratory of Biopharmaceutical Production & Formulation Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, P. R. China
- Innovation Academy for Green Manufacture, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Suling Zhao
- Institute of Optoelectronics Technology, Key Laboratory of Luminescence and Optical Information, Ministry of Education, Beijing Jiaotong University, Beijing 100044, P. R. China
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Kumar B, Malhotra K, Fuku R, Van Houten J, Qu GY, Piunno PA, Krull UJ. Recent trends in the developments of analytical probes based on lanthanide-doped upconversion nanoparticles. Trends Analyt Chem 2021. [DOI: 10.1016/j.trac.2021.116256] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Xu Y, Ma B, Chen E, Yu X, Sun C, Zhang M. Functional Up-Conversion Nanoparticle-Based Immunochromatography Assay for Simultaneous and Sensitive Detection of Residues of Four Tetracycline Antibiotics in Milk. Front Chem 2020; 8:759. [PMID: 33134255 PMCID: PMC7578426 DOI: 10.3389/fchem.2020.00759] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 07/22/2020] [Indexed: 12/21/2022] Open
Abstract
An ultrahigh-sensitivity lateral flow immunochromatography (LFIC) assay based on up-converting nanoparticles (UCNPs) was developed to carry out a multi-residue detection of tetracycline in milk. The sensitivity of the immunoassay was greatly improved by the use of a broad-spectrum monoclonal antibody attached to UCNPs to form a signal probe. Under the optimal conditions, the UCNP-LFIC assay enabled sensitive detection of tetracycline (TC) as well as of oxytetracycline (OTC), chlortetracycline (CTC), and doxycycline (DOX) within 10 min, with IC 50 values of 0.32, 0.32, 0.26, 0.22 ng/mL, respectively. There was no cross-reactivity with ten other antibiotics. Similarly, we evaluated the experimental results for matrix effects. Experiments involving spiking showed the four tetracycline antibiotics displaying mean recoveries ranging from 93.95 to 111.90% with relative standard deviations (RSDs) of < 9.95%. The detection results of actual samples using the developed method showed a good correlation (R 2 ≥ 0.98) with the results using high-performance liquid chromatography (HPLC). Thus, the assay can achieve an ultrahighly sensitive detection of antibiotics in milk, and can hence promote human health and provides promising applications in the bio-detection field.
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Affiliation(s)
- Ying Xu
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection & Quarantine, China Jiliang University, Hangzhou, China
| | - Biao Ma
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection & Quarantine, China Jiliang University, Hangzhou, China
| | - Erjing Chen
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection & Quarantine, China Jiliang University, Hangzhou, China
| | - Xiaoping Yu
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection & Quarantine, China Jiliang University, Hangzhou, China
| | - Chuanxin Sun
- Department of Plant Biology, Uppsala BioCenter, Linnean Center for Plant Biology, Swedish University of Agricultural Science (SLU), Uppsala, Sweden
| | - Mingzhou Zhang
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection & Quarantine, China Jiliang University, Hangzhou, China
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Zhang SW, Sun YY, Sun YM, Wang H, Li ZF, Xu ZL. Visual upconversion nanoparticle-based immunochromatographic assay for the semi-quantitative detection of sibutramine. Anal Bioanal Chem 2020; 412:8135-8144. [PMID: 32914397 DOI: 10.1007/s00216-020-02944-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 08/17/2020] [Accepted: 09/04/2020] [Indexed: 12/26/2022]
Abstract
Immunochromatographic assay (ICA) has been used widely for the onsite monitoring of illegal additives due to its simplicity, speed, and low cost. However, a scanner is commonly required for ICA to achieve quantitative results. In this work, we developed a visual semi-quantitative ICA for sibutramine, a banned additive in diet foods, without the need for a scanner for measurement. Monoclonal antibodies specific for sibutramine were raised and conjugated with upconversion nanoparticles (UCNPs) as the luminescent tracer. ICA was developed by employing multiple test lines to achieve the semi-quantitative detection of sibutramine. Based on the optimal conditions, the cutoff levels (limit of quantitation, LOQ) of T1 line, T2 line, T3 line, and T4 line were 0.02 μg/mL, 0.15 μg/mL, 1.0 μg/mL, and 7.5 μg/mL, respectively, in buffer system. The ICA demonstrated a LOQ at 0.2 mg/kg for sibutramine in diet food samples. The assay (including pretreatment) can be finished within 30 min without the aid of other instruments, except a laser pen. No false positive or false negative results were observed. The results indicated that the proposed method was reliable, simple, and rapid for the screening of sibutramine abuse in diet food samples.
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Affiliation(s)
- Shi-Wei Zhang
- Guangdong Provincial Key Laboratory of Food Quality and Safety/Guangdong Laboratory of Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, 510642, Guangdong, China.,National Nutrition Food Testing Center, Shenzhen Academy of Metrology and Quality Inspection, Shenzhen, 518055, Guangdong, China
| | - Yan-Yan Sun
- Department of Anaesthesiology, Shenzhen University General Hospital, Shenzhen, 518055, Guangdong, China.
| | - Yuan-Ming Sun
- Guangdong Provincial Key Laboratory of Food Quality and Safety/Guangdong Laboratory of Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, 510642, Guangdong, China
| | - Hong Wang
- Guangdong Provincial Key Laboratory of Food Quality and Safety/Guangdong Laboratory of Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, 510642, Guangdong, China
| | - Zhen-Feng Li
- Department of Entomology and Nematology and UCD Comprehensive Cancer Center, University of California Davis, Davis, CA, 95616, USA
| | - Zhen-Lin Xu
- Guangdong Provincial Key Laboratory of Food Quality and Safety/Guangdong Laboratory of Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, 510642, Guangdong, China.
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Semiquantitative immunochromatographic colorimetric biosensor for the detection of dexamethasone based on up-conversion fluorescent nanoparticles. Mikrochim Acta 2020; 187:447. [DOI: 10.1007/s00604-020-04418-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Accepted: 06/27/2020] [Indexed: 12/30/2022]
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21
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Hu G, Gao S, Han X, Yang L. Comparison of Immunochromatographic Strips Using Colloidal Gold, Quantum Dots, and Upconversion Nanoparticles for Visual Detection of Norfloxacin in Milk Samples. FOOD ANAL METHOD 2020. [DOI: 10.1007/s12161-020-01725-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Wang X, Wang Y, Wang Y, Chen Q, Liu X. Nanobody-alkaline phosphatase fusion-mediated phosphate-triggered fluorescence immunoassay for ochratoxin a detection. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 226:117617. [PMID: 31605970 DOI: 10.1016/j.saa.2019.117617] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Revised: 09/09/2019] [Accepted: 10/06/2019] [Indexed: 06/10/2023]
Abstract
Ochratoxin A (OTA) is a kind of mycotoxin that seriously harms the health of humans and animals. In this study, a nanobody-alkaline phosphatase fusion-mediated phosphate-triggered fluorescence immunoassay (Nb-AP-mediated PT-FIA) was developed for detecting OTA. Based on the constructed phosphate-triggered fluorescence sensing system for Nb-AP and the optimal working conditions, the Nb-AP-mediated PT-FIA has a half maximal inhibition concentration (IC50) of 0.46 ng/mL, a limit of detection (IC10) of 0.12 ng/mL, and a linear range (IC20-80) of 0.2-1.26 ng/mL, respectively. The recovery experiment indicated acceptable accuracy and precision of the Nb-AP-mediated PT-FIA, and the results were validated by high performance liquid chromatography with fluorescence detector. Thus this proposed method is applicable to sensitive, rapid, and low-cost detection of OTA and other toxic analytes with low molecular weight in food and environment.
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Affiliation(s)
- Xuerou Wang
- College of Food Science and Engineering, Hainan University, 58 Renmin Avenue, Haikou, 570228, China
| | - Yuanyuan Wang
- College of Food Science and Engineering, Hainan University, 58 Renmin Avenue, Haikou, 570228, China
| | - Yidan Wang
- College of Food Science and Engineering, Hainan University, 58 Renmin Avenue, Haikou, 570228, China
| | - Qi Chen
- College of Food Science and Engineering, Hainan University, 58 Renmin Avenue, Haikou, 570228, China
| | - Xing Liu
- College of Food Science and Engineering, Hainan University, 58 Renmin Avenue, Haikou, 570228, China.
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