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Deng X, Ma B, Gong Y, Li J, Zhou Y, Xu T, Hao P, Sun K, Lv Z, Yu X, Zhang M. Advances in Aptamer-Based Conjugate Recognition Techniques for the Detection of Small Molecules in Food. Foods 2024; 13:1749. [PMID: 38890976 PMCID: PMC11172347 DOI: 10.3390/foods13111749] [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: 04/16/2024] [Revised: 05/23/2024] [Accepted: 05/30/2024] [Indexed: 06/20/2024] Open
Abstract
Small molecules are significant risk factors for causing food safety issues, posing serious threats to human health. Sensitive screening for hazards is beneficial for enhancing public security. However, traditional detection methods are unable to meet the requirements for the field screening of small molecules. Therefore, it is necessary to develop applicable methods with high levels of sensitivity and specificity to identify the small molecules. Aptamers are short-chain nucleic acids that can specifically bind to small molecules. By utilizing aptamers to enhance the performance of recognition technology, it is possible to achieve high selectivity and sensitivity levels when detecting small molecules. There have been several varieties of aptamer target recognition techniques developed to improve the ability to detect small molecules in recent years. This review focuses on the principles of detection platforms, classifies the conjugating methods between small molecules and aptamers, summarizes advancements in aptamer-based conjugate recognition techniques for the detection of small molecules in food, and seeks to provide emerging powerful tools in the field of point-of-care diagnostics.
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Affiliation(s)
- Xin Deng
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection & Quarantine, China Jiliang University, Hangzhou 310018, China; (X.D.); (B.M.); (Y.G.); (P.H.); (K.S.); (X.Y.)
| | - Biao Ma
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection & Quarantine, China Jiliang University, Hangzhou 310018, China; (X.D.); (B.M.); (Y.G.); (P.H.); (K.S.); (X.Y.)
| | - Yunfei Gong
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection & Quarantine, China Jiliang University, Hangzhou 310018, China; (X.D.); (B.M.); (Y.G.); (P.H.); (K.S.); (X.Y.)
| | - Jiali Li
- Hangzhou Quickgene Sci-Tech. Co., Ltd., Hangzhou 310018, China;
| | - Yuxin Zhou
- College of Life Science, China Jiliang University, Hangzhou 310018, China; (Y.Z.); (T.X.)
| | - Tianran Xu
- College of Life Science, China Jiliang University, Hangzhou 310018, China; (Y.Z.); (T.X.)
| | - Peiying Hao
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection & Quarantine, China Jiliang University, Hangzhou 310018, China; (X.D.); (B.M.); (Y.G.); (P.H.); (K.S.); (X.Y.)
| | - Kai Sun
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection & Quarantine, China Jiliang University, Hangzhou 310018, China; (X.D.); (B.M.); (Y.G.); (P.H.); (K.S.); (X.Y.)
| | - Zhiyong Lv
- Dept Qual Managemet, Inner Mongolia Yili Grp. Co., Ltd., Hohhot 151100, China;
| | - Xiaoping Yu
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection & Quarantine, China Jiliang University, Hangzhou 310018, China; (X.D.); (B.M.); (Y.G.); (P.H.); (K.S.); (X.Y.)
| | - Mingzhou Zhang
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection & Quarantine, China Jiliang University, Hangzhou 310018, China; (X.D.); (B.M.); (Y.G.); (P.H.); (K.S.); (X.Y.)
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Yu H, Yang H, Liu W, Jin L, Jin B, Wu M. Novel electrochemiluminescence biosensor of fumonisin B 1 detection using MWCNTs-PDMS flexible bipolar electrode. Talanta 2023; 257:124379. [PMID: 36812657 DOI: 10.1016/j.talanta.2023.124379] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 02/10/2023] [Accepted: 02/15/2023] [Indexed: 02/18/2023]
Abstract
A novel portable and disposable bipolar electrode (BPE)-electrochemiluminescence (ECL) device was fabricated for fumonisin B1 (FB1) detection. BPE was fabricated by using MWCNTs and polydimethylsiloxane (PDMS) due to their excellent electrical conductivity and good mechanical stiffness. After the deposition of Au NPs on the cathode of BPE, the ECL signal could be improved 89-fold. Then a specific aptamer-based sensing strategy was constructed by grafting capture DNA on Au surface, followed by hybridizing with aptamer. Meanwhile, an excellent catalyst, Ag NPs was labeled on aptamer to activate oxygen reduction reaction, leading to a 13.8-fold enhancement in ECL signal at the anode of BPE. Under the optimal conditions, the biosensor exhibited a wide linear range of 0.10 pg/mL to 10 ng/mL for FB1 detection. Meanwhile, it demonstrated satisfactory recoveries for real sample detection with good selectivity, making it to be a convenient and sensitive device for mycotoxin assay.
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Affiliation(s)
- Huihui Yu
- Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing, 210095, PR China
| | - Haijian Yang
- Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing, 210095, PR China
| | - Weishuai Liu
- Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing, 210095, PR China
| | - Longsheng Jin
- Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing, 210095, PR China
| | - Bing Jin
- Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing, 210095, PR China.
| | - Meisheng Wu
- Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing, 210095, PR China.
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Yu Y, Li Y, Xu N, Zha Y, Bai X, Liu M, Zhou Y, Liu X. Fluorescence ratio immunoassay for fumonisin B1 based on the oxidase characteristics of the growth of monodispersed 2-D MnO 2 nanosheet on an individual gold nanoparticle (AuNP@MnO 2). Mikrochim Acta 2023; 190:93. [PMID: 36790594 DOI: 10.1007/s00604-023-05675-5] [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: 11/21/2022] [Accepted: 01/25/2023] [Indexed: 02/16/2023]
Abstract
Fumonisin B1 (FB1) is one of the important mycotoxins posing health risks in the area of food safety. A sensitive fluorescence ratio immunoassay has been established for FB1 based on the growth of monodispersed 2-D MnO2 nanosheet on an individual gold nanoparticle (AuNP@MnO2). FB1 competed with the coated FB1-BSA to bind the FB1 monoclonal antibody. After a washing step, alkaline phosphatase-labeled goat anti-mouse IgG (ALP-IgG) with high catalytic activity was combined with FB1 monoclonal antibody. ALP reacts with ascorbic acid 2-phosphate (AAP) to produce ascorbic acid (AA), which decomposes AuNP@MnO2 to dehydroascorbic acid (DHAA). O-Phenylenediamine dihydrochloride (OPD) is oxidized to yellow-fluorescent substrate of 2,3-diaminophenazine (DAP) (excitation, 423 nm; emission, 570 nm) by AuNP@MnO2. Meanwhile, OPD can also be reduced to blue fluorescent substrate of OPDred (excitation, 350 nm; emission, 430 nm) by DHAA. The content of FB1 can be determined by fluorescence ratio of blue/yellow. The limit of detection (LOD) of the fluorescence ratio immunoassay for FB1 was 0.06 ng mL-1, and the linear range was from 0.25 to 60.00 ng mL-1. The effectiveness of the assay was verified in real maize samples, and satisfactory recoveries were attained. The correlation coefficient of these results between the fluorescence ratio immunoassay and commercial ELISA kit was 0.9999. This method provides a sensitive and selective tool for the detection of FB1 in maize samples.
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Affiliation(s)
- Yao Yu
- State Key Laboratory for Zoonotic Diseases, Key Laboratory of Zoonosis Research, Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, 130062, People's Republic of China
| | - Yansong Li
- State Key Laboratory for Zoonotic Diseases, Key Laboratory of Zoonosis Research, Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, 130062, People's Republic of China
| | - Ning Xu
- State Key Laboratory for Zoonotic Diseases, Key Laboratory of Zoonosis Research, Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, 130062, People's Republic of China
| | - Yonghong Zha
- State Key Laboratory for Zoonotic Diseases, Key Laboratory of Zoonosis Research, Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, 130062, People's Republic of China
| | - Xue Bai
- State Key Laboratory for Zoonotic Diseases, Key Laboratory of Zoonosis Research, Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, 130062, People's Republic of China
| | - Mingyuan Liu
- State Key Laboratory for Zoonotic Diseases, Key Laboratory of Zoonosis Research, Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, 130062, People's Republic of China
| | - Yu Zhou
- State Key Laboratory for Zoonotic Diseases, Key Laboratory of Zoonosis Research, Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, 130062, People's Republic of China.
- College of Animal Science, Yangtze University, Jingzhou, 434023, People's Republic of China.
| | - Xiaolei Liu
- State Key Laboratory for Zoonotic Diseases, Key Laboratory of Zoonosis Research, Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, 130062, People's Republic of China.
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Xu G, Fan X, Chen X, Liu Z, Chen G, Wei X, Li X, Leng Y, Xiong Y, Huang X. Ultrasensitive Lateral Flow Immunoassay for Fumonisin B1 Detection Using Highly Luminescent Aggregation-Induced Emission Microbeads. Toxins (Basel) 2023; 15:79. [PMID: 36668898 PMCID: PMC9861643 DOI: 10.3390/toxins15010079] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 01/05/2023] [Accepted: 01/09/2023] [Indexed: 01/18/2023] Open
Abstract
Lateral flow immunoassay (LFIA) based on fluorescent microbeads has attracted much attention for its use in rapid and accurate food safety monitoring. However, conventional fluorescent microbeads are limited by the aggregation-caused quenching effect of the loaded fluorophores, thus resulting in low signal intensity and insufficient sensitivity of fluorescent LFIA. In this study, a green-emitting fluorophore with an aggregation-induced emission (AIE) characteristic was encapsulated in polymer nanoparticles via an emulsification technique to form ultrabright fluorescent microbeads (denoted as AIEMBs). The prepared AIEMBs were then applied in a competitive LFIA (AIE-LFIA) as signal reporters for the rapid and highly sensitive screening of fumonisin B1 (FB1) in real corn samples. High sensitivity with a detection limit of 0.024 ng/mL for FB1 was achieved by the developed AIE-LFIA. Excellent selectivity, good accuracy, and high reliability of the AIE-LFIA were demonstrated, indicating a promising platform for FB1 screening.
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Affiliation(s)
- Ge Xu
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Xiaojing Fan
- School of Future Technology, Nanchang University, Nanchang 330047, China
| | - Xirui Chen
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Zilong Liu
- School of Food Science and Engineering, Hainan University, Haikou 570228, China
| | - Guoxin Chen
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Xiaxia Wei
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Xiangmin Li
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Yuankui Leng
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Yonghua Xiong
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Xiaolin Huang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Nanchang University, Nanchang 330047, China
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Naghshbandi B, Adabi M, Pooshang Bagheri K, Tavakolipour H. Design of a new electrochemical aptasensor based on screen printed carbon electrode modified with gold nanoparticles for the detection of fumonisin B1 in maize flour. J Nanobiotechnology 2023; 20:534. [PMID: 36588152 PMCID: PMC9806910 DOI: 10.1186/s12951-022-01745-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 12/09/2022] [Indexed: 01/03/2023] Open
Abstract
A new aptasensor for detecting fumonisin B1 (FB1) in the maize samples was developed based on DNA- aptamer recognition and electrochemical technique. A thiol-modified single-stranded DNA (ss-HSDNA) was immobilized on a screen printed carbon electrode (SPCE) electrodeposited by gold nanoparticles (AuNPs). The morphology and structure of SPCE and AuNPs/SPCE were evaluated via scanning electron microscopy (SEM) equipped with energy dispersive spectroscopy (EDS). The SEM results demonstrated that the SPCE had a flat sheet-like structure, and the AuNPs were homogeneously electrodeposited on the SPCE. Cyclic voltammetry (CV) experiments in the [Fe(CN)6]- 3/- 4 solution were conducted to investigate each step of electrode modification as well as aptasensor performance. Aptamer-FB1 interaction prevented the electron transfer permitting the determination of FB1 in the range of 0.5-500 ng/mL with a low detection limit (0.14 ng/mL). The designed aptasensor was also shown high selectivity, acceptable repeatability and reproducibility, good long-term stability, and excellent recovery. Furthermore, there was a strong correlation between the findings achieved via the designed aptasensor and high performance liquid chromatography (HPLC). Therefore, a simple construction process and satisfactory electrochemical performance of the proposed aptasensor have a great potential for the detection of FB1 in maize samples.
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Affiliation(s)
- Behnaz Naghshbandi
- grid.411463.50000 0001 0706 2472Department of Food Science and Technology, North Tehran Branch, Islamic Azad University, Tehran, Iran
| | - Mohsen Adabi
- grid.411463.50000 0001 0706 2472Department of Metallurgy and Materials Science, Roudehen Branch, Islamic Azad University, Roudehen, Iran
| | - Kamran Pooshang Bagheri
- grid.420169.80000 0000 9562 2611Venom and Biotherapeutics Molecules Lab, Medical Biotechnology Department, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - Hamid Tavakolipour
- grid.449248.7Department of Food Science and Technology, Sabzevar Branch, Islamic Azad University, Sabzevar, Iran
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Yu Y, Li Y, Zhang Q, Zha Y, Lu S, Yang Y, Li P, Zhou Y. Colorimetric immunoassay via smartphone based on Mn2+-Mediated aggregation of AuNPs for convenient detection of fumonisin B1. Food Control 2022. [DOI: 10.1016/j.foodcont.2021.108481] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Hou Y, Jia B, Sheng P, Liao X, Shi L, Fang L, Zhou L, Kong W. Aptasensors for mycotoxins in foods: Recent advances and future trends. Compr Rev Food Sci Food Saf 2021; 21:2032-2073. [PMID: 34729895 DOI: 10.1111/1541-4337.12858] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Revised: 08/19/2021] [Accepted: 09/16/2021] [Indexed: 02/06/2023]
Abstract
Mycotoxin contamination in foods has posed serious threat to public health and raised worldwide concern. The development of simple, rapid, facile, and cost-effective methods for mycotoxin detection is of urgent need. Aptamer-based sensors, abbreviated as aptasensors, with excellent recognition capacity to a wide variety of mycotoxins have attracted ever-increasing interest of researchers because of their simple fabrication, rapid response, high sensitivity, low cost, and easy adaptability for in situ measurement. The past few decades have witnessed the rapid advances of aptasensors for mycotoxin detection in foods. Therefore, this review first summarizes the reported aptamer sequences specific for mycotoxins. Then, the recent 5-year advancements in various newly developed aptasensors, which, according to the signal output mode, are divided into electrochemical, optical and photoelectrochemical categories, for mycotoxin detection are comprehensively discussed. A special attention is taken on their strengths and limitations in real-world application. Finally, the current challenges and future perspectives for developing novel highly reliable aptasensors for mycotoxin detection are highlighted, which is expected to provide powerful references for their thorough research and extended applications. Owing to their unique advantages, aptasensors display a fascinating prospect in food field for safety inspection and risk assessment.
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Affiliation(s)
- Yujiao Hou
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,College of Traditional Chinese Medicine, Xinjiang Medical University, Urumqi, China.,Xinjiang Agricultural Vocational Technical College, Changji, China
| | - Boyu Jia
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Ping Sheng
- College of Traditional Chinese Medicine, Xinjiang Medical University, Urumqi, China
| | - Xiaofang Liao
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Linchun Shi
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Ling Fang
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Lidong Zhou
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Weijun Kong
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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Determination of minimal sequence for zearalenone aptamer by computational docking and application on an indirect competitive electrochemical aptasensor. Anal Bioanal Chem 2021; 413:3861-3872. [PMID: 34021369 DOI: 10.1007/s00216-021-03336-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 03/28/2021] [Accepted: 04/09/2021] [Indexed: 10/21/2022]
Abstract
Aptamers are short single-stranded oligonucleotides (either DNA or RNA) that can fold into well-defined three-dimensional (3D) spatial structures which enable them to capture their specific target by complementary shape interactions. Aptamers are selected from large random libraries through the SELEX process and only a small fraction of the sequence is involved in direct docking with the target. In this paper, we describe the possible truncation variants of zearalenone (ZEA) aptamer which might be an effective binding region for the target. The originally selected zearalenone (ZEA) aptamer was 80-mer in length and shown to bind the target with a high affinity (Kd = 41 ± 5 nM). Herein, computational docking simulation was performed with 15 truncated variants to determine the predicted binding energy and responsible binding site of the aptamer-analyte complex. The results revealed that 5 truncated variants had binding energy lower than - 7.0 kcal/mol. Circular dichroism analysis was performed on the shortlisted aptamer and the conformational change of aptamers was observed with the presence of an analyte. Aptamer Z3IN (29-mer) was chosen as the most enhanced affinity for its target with a dissociation constant of 11.77 ± 1.44 nM. The aptamer was further applied in the electrochemical aptasensor of ZEA based on an indirect competitive format. The results demonstrated that the truncated aptamer leads to an enhancement of the sensitivity of the biosensor.
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Mirón-Mérida VA, Gong YY, Goycoolea FM. Aptamer-based detection of fumonisin B1: A critical review. Anal Chim Acta 2021; 1160:338395. [PMID: 33894965 DOI: 10.1016/j.aca.2021.338395] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 03/02/2021] [Accepted: 03/05/2021] [Indexed: 01/07/2023]
Abstract
Mycotoxin contamination is a current issue affecting several crops and processed products worldwide. Among the diverse mycotoxin group, fumonisin B1 (FB1) has become a relevant compound because of its adverse effects in the food chain. Conventional analytical methods previously proposed to quantify FB1 comprise LC-MS, HPLC-FLD and ELISA, while novel approaches integrate different sensing platforms and fluorescently labelled agents in combination with antibodies. Nevertheless, such methods could be expensive, time-consuming and require experience. Aptamers (ssDNA) are promising alternatives to overcome some of the drawbacks of conventional analytical methods, their high affinity through specific aptamer-target binding has been exploited in various designs attaining favorable limits of detection (LOD). So far, two aptamers specific to FB1 have been reported, and their modified and shortened sequences have been explored for a successful target quantification. In this critical review spanning the last eight years, we have conducted a systematic comparison based on principal component analysis of the aptamer-based techniques for FB1, compared with chromatographic, immunological and other analytical methods. We have also conducted an in-silico prediction of the folded structure of both aptamers under their reported conditions. The potential of aptasensors for the future development of highly sensitive FB1 testing methods is emphasized.
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Affiliation(s)
| | - Yun Yun Gong
- School of Food Science and Nutrition, University of Leeds, Leeds, LS2 9JT, United Kingdom.
| | - Francisco M Goycoolea
- School of Food Science and Nutrition, University of Leeds, Leeds, LS2 9JT, United Kingdom.
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Khataee A, Sohrabi H, Arbabzadeh O, Khaaki P, Majidi MR. Frontiers in conventional and nanomaterials based electrochemical sensing and biosensing approaches for Ochratoxin A analysis in foodstuffs: A review. Food Chem Toxicol 2021; 149:112030. [DOI: 10.1016/j.fct.2021.112030] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 01/19/2021] [Accepted: 01/24/2021] [Indexed: 12/22/2022]
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Mollarasouli F, Badilli U, Bakirhan NK, Ozkan SA, Ozkan Y. Advanced DNA nanomachines: Strategies and bioapplications. J Drug Deliv Sci Technol 2021. [DOI: 10.1016/j.jddst.2020.102290] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Zheng YT, Zhao BS, Zhang HB, Jia H, Wu M. Colorimetric aptasensor for fumonisin B1 detection by regulating the amount of bubbles in closed bipolar platform. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.114584] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Investigation of the Influence of Liquid Motion in a Flow-based System on an Enzyme Aggregation State with an Atomic Force Microscopy Sensor: The Effect of Water Flow. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10134560] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The influence of liquid motion in flow-based systems on the aggregation state of an enzyme and on its enzymatic activity was studied, with horseradish peroxidase (HRP) as an example. Our experiments were carried out in a setup modeling the flow section of the biosensor communication with a measuring cell containing a protein solution. Studies were conducted for a biosensor measuring cell located along the axis of a spiral-moving liquid flow. The aggregation state of the protein was determined with an atomic force microscopy-based sensor (AFM sensor). It has been demonstrated that upon flowing of water through silicone biosensor communications, an increased aggregation of HRP protein was observed, but, at the same time, its enzymatic activity did not change. Our results obtained herein are useful in the development of models describing the influence of liquid flow in biosensor communications on the properties of enzymes and other proteins. This is particularly important for the development of serologic protein biosensors, which are beginning to be used for the early diagnosis of oncological diseases (such as brain cancer, prostate cancer, breast cancer etc.). The results obtained herein should also be taken into account when considering possible changes in hemodynamics due to increased protein aggregation.
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