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Ozcelikay G, Cetinkaya A, Kaya SI, Yence M, Canavar Eroğlu PE, Unal MA, Ozkan SA. Novel Sensor Approaches of Aflatoxins Determination in Food and Beverage Samples. Crit Rev Anal Chem 2024; 54:982-1001. [PMID: 35917408 DOI: 10.1080/10408347.2022.2105136] [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] [Indexed: 10/16/2022]
Abstract
The rapid quantification of toxins in food and beverage products has become a significant issue in overcoming and preventing many life-threatening diseases. Aflatoxin-contaminated food is one of the reasons for primary liver cancer and induces some tumors and cancer types. Advancements in biosensors technology have brought out different analysis methods. Therefore, the sensing performance has been improved for agricultural and beverage industries or food control processes. Nanomaterials are widely used for the enhancement of sensing performance. The enzymes, molecularly imprinted polymers (MIP), antibodies, and aptamers can be used as biorecognition elements. The transducer part of the biosensor can be selected, such as optical, electrochemical, and mass-based. This review explains the classification of major types of aflatoxins, the importance of nanomaterials, electrochemical, optical biosensors, and QCM and their applications for the determination of aflatoxins.
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Affiliation(s)
- Goksu Ozcelikay
- Department of Analytical Chemistry, Faculty of Pharmacy, Ankara University, Yenimahalle, Ankara, Turkey
| | - Ahmet Cetinkaya
- Department of Analytical Chemistry, Faculty of Pharmacy, Ankara University, Yenimahalle, Ankara, Turkey
| | - S Irem Kaya
- Department of Analytical Chemistry, Gulhane Faculty of Pharmacy, University of Health Sciences, Kecioren, Ankara, Turkey
| | - Merve Yence
- Department of Analytical Chemistry, Faculty of Pharmacy, Ankara University, Yenimahalle, Ankara, Turkey
| | | | | | - Sibel A Ozkan
- Department of Analytical Chemistry, Faculty of Pharmacy, Ankara University, Yenimahalle, Ankara, Turkey
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Esmaelpourfarkhani M, Ramezani M, Alibolandi M, Abnous K, Taghdisi SM. CRISPR-Cas12a-based colorimetric aptasensor for aflatoxin M1 detection based on oxidase-mimicking activity of flower-like MnO 2 nanozymes. Talanta 2024; 271:125729. [PMID: 38306811 DOI: 10.1016/j.talanta.2024.125729] [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: 11/24/2023] [Revised: 01/19/2024] [Accepted: 01/27/2024] [Indexed: 02/04/2024]
Abstract
Given the highly mutagenic and carcinogenic nature of Aflatoxin M1 (AFM1), the quantity assessment of AFM1 residues in milk and dairy products is necessary to maintain consumer health and food safety. Herein, CRISPR-Cas12a-based colorimetric aptasensor was developed using the catalytic activity of flower-like nanozymes of MnO2 and trans-cleavage property of CRISPR-Cas12a system to quantitatively detect AFM1. The basis of the developed colorimetric aptasensor relies on whether or not the CRISPR-Cas12a system is activated, as well as the contrast in oxidase-mimicking capability exhibited by flower-like MnO2 nanozymes when AFM1 is absent or present. When AFM1 is not present in the sample, single-stranded DNA (ssDNA) is degraded by the activated CRISPR-Cas12a, and the solution turns into yellow due to the catalytic activity of the nanozymes. While, in the attendance of AFM1, ssDNA degradation does not occur due to the inactivation of the CRISPR-Cas12a. Therefore, with the adsorption of the ssDNA on the MnO2 nanozymes, their catalytic activity decreases, and the solution color becomes pale yellow due to less oxidation of the chromogenic substrate. In this aptasensor, the relative absorbance changes increased linearly from 6 to 160 ng L-1, and the detection limit was 2.1 ng L-1. The developed aptasensor displays a selective detection performance and a practical application for quantitative analysis of AFM1 in milk samples. The results of the introduced aptasensor open up the way to design other selective and sensitive aptasensors for the detection of other mycotoxins by substitution of the used sequences.
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Affiliation(s)
- Masoomeh Esmaelpourfarkhani
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Medicinal Chemistry, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohammad Ramezani
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mona Alibolandi
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Khalil Abnous
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Medicinal Chemistry, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.
| | - Seyed Mohammad Taghdisi
- Targeted Drug Delivery Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Pharmaceutical Biotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.
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3
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Huang L, Zhang C, Ye R, Yan B, Zhou X, Xu W, Guo J. Capacitive biosensors for label-free and ultrasensitive detection of biomarkers. Talanta 2024; 266:124951. [PMID: 37487266 DOI: 10.1016/j.talanta.2023.124951] [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: 05/04/2023] [Revised: 07/10/2023] [Accepted: 07/14/2023] [Indexed: 07/26/2023]
Abstract
Capacitive biosensors are label-free capacitors that can detect biomarkers with the outstanding advantages of simplicity, low cost, and ultrahigh sensitivity. A typical capacitive biosensor consists of a bioreceptor and a transducer, where the bioreceptor captures the biomarker to form a bioreceptor/biomarker conjugate and the transducer generates a detectable signal. In general, antibodies, aptamers, or proteins are exploited as the bioreceptor, while various electrodes including carbon electrodes (CEs), gold electrodes (AuEs), or interdigitated electrodes (IDEs) may serve as the transducer. Because the formation of bioreceptor/biomarker conjugates often leads to a change in capacitance, the capacitive signal is then employed for biomarker detection. This review summarizes recent advances in capacitive biosensors for the detection of biomarkers over the last five years. With a focus on the three common types of bioreceptors, i.e., antibodies, aptamers, and proteins, capacitive biosensors using CEs, AuEs, and IDEs as the transducers are discussed in detail. The immobilization of bioreceptors and signal amplification strategies are described to provide a robust overview of capacitive biosensors for biomarker detection. In addition, analytical methods and future prospects are given to support the application of capacitive biosensors.
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Affiliation(s)
- Lei Huang
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou, China; School of Resources and Environment, University of Electronic Science and Technology of China, Chengdu, China
| | - Cheng Zhang
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou, China
| | - Run Ye
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou, China
| | - Bin Yan
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou, China.
| | - Xiaojia Zhou
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou, China.
| | - Wenbo Xu
- School of Resources and Environment, University of Electronic Science and Technology of China, Chengdu, China
| | - Jinhong Guo
- School of Sensing Science and Engineering, Shanghai Jiao Tong University, Shanghai, China.
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Algethami FK, Rabti A, Mastouri M, Ben Aoun S, Alqarni LS, Elamin MR, Raouafi N. Sub-femtomolar capacitance-based biosensing of kanamycin using screen-printed electrodes coated with redox-active polymeric films. Mikrochim Acta 2023; 190:434. [PMID: 37821740 DOI: 10.1007/s00604-023-06003-7] [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: 08/15/2023] [Accepted: 09/16/2023] [Indexed: 10/13/2023]
Abstract
An ultrasensitive capacitance-based biosensor has been developed capable of detecting the kanamycin (KAN) antibiotic at sub-femtomolar levels. The biosensor was constructed using a potential-pulse-assisted method, allowing for the layer-by-layer deposition of a melanin-like polymeric film (MLPF) on an electrode surface modified with gold nanoparticles (AuNPs). The MLPF was formed through the electrochemical polymerization of dopamine and the specific kanamycin aptamer. By optimizing the operating parameters, we achieved a label-free detection of kanamycin by monitoring the variation of pseudocapacitive properties of the MLPF-modified electrode using electrochemical impedance spectroscopy. The developed biosensor demonstrated a wide linear response ranging from 1 fM to 100 pM, with a remarkable limit of detection of 0.3 fM (S/N = 3) for kanamycin. Furthermore, the biosensor was successfully applied to detect kanamycin in milk samples, exhibiting good recovery. These findings highlight the promising potential of the aptasensor for determination of antibiotic residues and ensuring food safety. In conclusion, our ultrasensitive capacitance-based biosensor provides a reliable and efficient method for detecting trace amounts of kanamycin in dairy products. This technology can contribute to safeguarding consumer health and maintaining high food safety standards.
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Affiliation(s)
- Faisal K Algethami
- Department of Chemistry, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), P.O. Box 90950, 11623, Riyadh, Saudi Arabia.
| | - Amal Rabti
- Laboratory of Materials, Treatment, and Analysis (LMTA), National Institute of Research and Physicochemical Analysis (INRAP), Biotechpole Sidi Thabet, 2020, Sidi Thabet, Tunisia
- Sensors and Biosensors Group, Analytical Chemistry and Electrochemistry Lab (LR99ES15), University of Tunis El Manar, Tunis El Manar, 2092, Tunis, Tunisia
| | - Mohamed Mastouri
- Sensors and Biosensors Group, Analytical Chemistry and Electrochemistry Lab (LR99ES15), University of Tunis El Manar, Tunis El Manar, 2092, Tunis, Tunisia
| | - Sami Ben Aoun
- Department of Chemistry, Faculty of Science, Taibah University, P.O Box 30002, Al-Madinah Al-Munawwarah, Saudi Arabia
| | - Laila S Alqarni
- Department of Chemistry, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), P.O. Box 90950, 11623, Riyadh, Saudi Arabia
| | - Mohamed R Elamin
- Department of Chemistry, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), P.O. Box 90950, 11623, Riyadh, Saudi Arabia
| | - Noureddine Raouafi
- Sensors and Biosensors Group, Analytical Chemistry and Electrochemistry Lab (LR99ES15), University of Tunis El Manar, Tunis El Manar, 2092, Tunis, Tunisia.
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Algethami FK, Rabti A, Mastouri M, Abdulkhair BY, Ben Aoun S, Raouafi N. Highly sensitive capacitance-based nitrite sensing using polydopamine/AuNPs-modified screen-printed carbon electrode. RSC Adv 2023; 13:21336-21344. [PMID: 37465569 PMCID: PMC10350640 DOI: 10.1039/d3ra03898j] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2023] [Accepted: 07/10/2023] [Indexed: 07/20/2023] Open
Abstract
Regulatory bodies play a crucial role in establishing limits for food additives to ensure food quality and safety of food products, as excessive usage poses risks to consumers. In the context of processed animal-based foodstuffs, nitrite is commonly utilized as a means to slow down bacterial degradation. In this study, we have successfully leveraged the redox activity of an electrochemically deposited polydopamine (pDA) film onto gold nanoparticle (AuNP)-modified screen-printed electrodes (SPCE) to develop a sensitive and versatile methodology for the detection of nitrite using redox capacitance spectroscopy. By exploiting the interaction of the AuNPs/pDA electroactive interface with the target nitrite ions, we observed distinct changes in the redox distribution, subsequently leading to modifications in the associated redox capacitance. This alteration enables the successful detection of nitrite, exhibiting a linear response within the concentration range of 10 to 500 μM, with a limit of detection of 1.98 μM (S/N = 3). Furthermore, we applied the developed sensor to analyze nitrite levels in processed meats, yielding good recoveries. These results demonstrate the potential of our approach as a promising method for routine detection of ions.
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Affiliation(s)
- Faisal K Algethami
- Department of Chemistry, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU) P.O. Box 90950 Riyadh 11623 Saudi Arabia @imamu.edu.sa
| | - Amal Rabti
- Sensors and Biosensors Group, Analytical Chemistry and Electrochemistry Lab (LR99ES15), Department of Chemistry, Faculty of Science, University of Tunis El Manar Tunis El Manar 2092 Tunis Tunisia
- National Institute of Research and Physicochemical Analysis (INRAP), Laboratory of Materials, Treatment, and Analysis (LMTA), Biotechpole Sidi Thabet 2020 Sidi Thabet Tunisia
| | - Mohamed Mastouri
- Sensors and Biosensors Group, Analytical Chemistry and Electrochemistry Lab (LR99ES15), Department of Chemistry, Faculty of Science, University of Tunis El Manar Tunis El Manar 2092 Tunis Tunisia
| | - Babiker Y Abdulkhair
- Department of Chemistry, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU) P.O. Box 90950 Riyadh 11623 Saudi Arabia @imamu.edu.sa
| | - Sami Ben Aoun
- Department of Chemistry, Faculty of Science, Taibah University P.O. Box 30002 Al-Madinah Al-Munawwarah Saudi Arabia
| | - Noureddine Raouafi
- Sensors and Biosensors Group, Analytical Chemistry and Electrochemistry Lab (LR99ES15), Department of Chemistry, Faculty of Science, University of Tunis El Manar Tunis El Manar 2092 Tunis Tunisia
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Marins-Gonçalves L, Martins Ferreira M, Rocha Guidi L, De Souza D. Is chemical analysis suitable for detecting mycotoxins in agricultural commodities and foodstuffs? Talanta 2023; 265:124782. [PMID: 37339540 DOI: 10.1016/j.talanta.2023.124782] [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: 03/22/2023] [Revised: 05/07/2023] [Accepted: 06/06/2023] [Indexed: 06/22/2023]
Abstract
The assessment of the risks of mycotoxins to humans through consuming contaminated foods resulted in specific legislation that evaluates the presence, quantities, and type of mycotoxins in agricultural commodities and foodstuffs. Thus, to ensure compliance with legislation, food safety and consumer health, the development of suitable analytical procedures for identifying and quantifying mycotoxins in the free or modified form, in low-concentration and in complex samples is necessary. This review reports the application of the modern chemical methods of analysis employed in mycotoxin detection in agricultural commodities and foodstuffs. It is reported extraction methods with reasonable accuracy and those present characteristics according to guidelines of Green Analytical Chemistry. Recent trends in mycotoxins detection using analytical techniques are presented and discussed, evaluating the robustness, precision, accuracy, sensitivity, and selectivity in the detection of different classes of mycotoxins. Sensitivity coming from modern chromatographic techniques allows the detection of very low concentrations of mycotoxins in complex samples. However, it is essential the development of more green, fast and more suitable accuracy extraction methods for mycotoxins, which agricultural commodities producers could use. Despite the high number of research reporting the use of chemically modified voltammetric sensors, mycotoxins detection still has limitations due to the low selectivity from similar chemical structures of mycotoxins. Furthermore, spectroscopic techniques are rarely employed due to the limited number of reference standards for calibration procedures.
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Affiliation(s)
- Lorranne Marins-Gonçalves
- Laboratory of Electroanalytical Applied to Biotechnology and Food Engineering (LEABE), Chemistry Institute, Uberlândia Federal University, Patos de Minas Campus, Major Jerônimo street, 566, Patos de Minas, MG, 38700-002, Brazil; Postgraduate Program in Food Engineering, Chemistry Engineering, Uberlândia Federal University; Patos de Minas Campus, Major Jerônimo street, 566, Patos de Minas, MG, 38700-002, Brazil
| | - Mariana Martins Ferreira
- Postgraduate Program in Food Engineering, Chemistry Engineering, Uberlândia Federal University; Patos de Minas Campus, Major Jerônimo street, 566, Patos de Minas, MG, 38700-002, Brazil
| | - Letícia Rocha Guidi
- Postgraduate Program in Food Engineering, Chemistry Engineering, Uberlândia Federal University; Patos de Minas Campus, Major Jerônimo street, 566, Patos de Minas, MG, 38700-002, Brazil
| | - Djenaine De Souza
- Laboratory of Electroanalytical Applied to Biotechnology and Food Engineering (LEABE), Chemistry Institute, Uberlândia Federal University, Patos de Minas Campus, Major Jerônimo street, 566, Patos de Minas, MG, 38700-002, Brazil; Postgraduate Program in Food Engineering, Chemistry Engineering, Uberlândia Federal University; Patos de Minas Campus, Major Jerônimo street, 566, Patos de Minas, MG, 38700-002, Brazil.
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Aptamer-functionalized capacitive biosensors. Biosens Bioelectron 2023; 224:115014. [PMID: 36628826 DOI: 10.1016/j.bios.2022.115014] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 11/17/2022] [Accepted: 12/13/2022] [Indexed: 12/25/2022]
Abstract
The growing use of aptamers as target recognition elements in label-free biosensing necessitates corresponding transducers that can be used in relevant environments. While popular in many fields, capacitive sensors have seen relatively little, but growing use in conjunction with aptamers for sensing diverse targets. Few reports have shown physiologically relevant sensitivity in laboratory conditions and a cohesive picture on how target capture modifies the measured capacitance has been lacking. In this review, we assess the current state of the field in three areas: small molecule, protein, and cell sensing. We critically analyze the proposed hypotheses on how aptamer-target capture modifies the capacitance, as many mechanistic postulations appear to conflict between published works. As the field matures, we encourage future works to investigate individual aptamer-target interactions and to interrogate the physical mechanisms leading to measured changes in capacitance. To this point, we provide recommendations on best practices for developing aptasensors with a particular focus on considerations for biosensing in clinical settings.
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Algethami FK, Rabti A, Mastouri M, Ben Aoun S, Abdulkhair BY, Raouafi N. In silico selection of an aptamer for the design of aptamer-modified magnetic beads bearing ferrocene co-immobilized label for capacitive detection of acetamiprid. Talanta 2023; 258:124445. [PMID: 36924636 DOI: 10.1016/j.talanta.2023.124445] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 03/04/2023] [Accepted: 03/09/2023] [Indexed: 03/12/2023]
Abstract
In silico evaluation of aptamer/target interactions can facilitate the development of efficient biosensor with high specificity and affinity. In this work, we present in silico, i.e. structural similarity, molecular docking and molecular dynamics selection of the aptamer with sufficient binding properties for acetamiprid (ACE), a nicotine-like pesticide, and its use to design aptamer-modified magnetic beads bearing ferrocene co-immobilized label for capacitive detection of ACE. Taking advantages of the aptamer higher stability and binding affinity, the specific properties of magnetic beads and the redox properties of ferrocene moiety, the developed aptasensor showed promising analytical performances for ACE detection, using electrochemical capacitance spectroscopy, with a linear response ranging from 1 fM to 100 pM and a limit of detection of 0.94 fM (S/N = 3). Furthermore, it was successfully applied to detect ACE in fortified tomatoes samples, proving a promising approach for routine detection of pesticide in real agricultural samples.
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Affiliation(s)
- Faisal K Algethami
- Department of Chemistry, College of Science, Imam Mohammad Ibn Saud Islamic University, P.O. Box 90950, Riyadh, 11623, Saudi Arabia.
| | - Amal Rabti
- Sensors and Biosensors Group, Analytical Chemistry and Electrochemistry Lab (LR99ES15), University of Tunis El Manar, Tunis El Manar, 2092, Tunis, Tunisia
| | - Mohamed Mastouri
- Sensors and Biosensors Group, Analytical Chemistry and Electrochemistry Lab (LR99ES15), University of Tunis El Manar, Tunis El Manar, 2092, Tunis, Tunisia
| | - Sami Ben Aoun
- Department of Chemistry, Faculty of Science, Taibah University, P.O Box 30002, Al-Madinah Al-Munawwarah, Saudi Arabia
| | - Babiker Y Abdulkhair
- Department of Chemistry, College of Science, Imam Mohammad Ibn Saud Islamic University, P.O. Box 90950, Riyadh, 11623, Saudi Arabia
| | - Noureddine Raouafi
- Sensors and Biosensors Group, Analytical Chemistry and Electrochemistry Lab (LR99ES15), University of Tunis El Manar, Tunis El Manar, 2092, Tunis, Tunisia.
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Thurner F, AlZahra'a Alatraktchi F. Recent advances in electrochemical biosensing of aflatoxin M1 in milk – a mini review. Microchem J 2023. [DOI: 10.1016/j.microc.2023.108594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
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Wang M, Shan L, Kong X, Pan R, Wang H, Zhou J, Ming J. A label-free fluorescence strategy for analysis of aflatoxin M1 by self-protected DNAzyme and aptamer recognition triggered DNA walker cascade amplification. Microchem J 2022. [DOI: 10.1016/j.microc.2022.108356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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11
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Emerging biosensors to detect aflatoxin M1 in milk and dairy products. Food Chem 2022; 398:133848. [DOI: 10.1016/j.foodchem.2022.133848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 06/17/2022] [Accepted: 07/31/2022] [Indexed: 11/23/2022]
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Kaur G, Sharma S, Singh S, Bhardwaj N, Deep A. Selective and Sensitive Electrochemical Sensor for Aflatoxin M1 with a Molybdenum Disulfide Quantum Dot/Metal-Organic Framework Nanocomposite. ACS OMEGA 2022; 7:17600-17608. [PMID: 35664620 PMCID: PMC9161392 DOI: 10.1021/acsomega.2c00126] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Accepted: 04/27/2022] [Indexed: 06/15/2023]
Abstract
Aflatoxins are the hepatotoxic secondary metabolites which are highly carcinogenic and known to cause several adverse effects on human health. The present study reports a simple, sensitive, and novel electrochemical sensor for aflatoxin M1 (AFM1). The sensor has been fabricated by modifying the screen-printed carbon electrodes with a functional nanocomposite of molybdenum disulfide (MoS2) quantum dots (QDs) and a zirconium-based metal-organic framework (MOF), that is, UiO-66-NH2. The MoS2/UiO-66-modified electrodes were decorated with the AFM1-specific monoclonal antibodies and then investigated for the electrochemical detection of AFM1. Based on the electrochemical impedance spectroscopy analysis, it was possible to detect AFM1 in the concentration range of 0.2-10 ng mL-1 with a limit of detection of 0.06 ng mL-1. The realization of an excellent sensing performance can be attributed to the electroactivity of MoS2 QDs and the large surface to volume area achieved by the addition of the MOF. The presence of UiO-66-NH2 is also useful to attain readily available amine functionality for the robust interfacing of antibodies. The performance of the developed sensor has also been validated by detecting AFM1 in the spiked milk samples.
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Affiliation(s)
- Gurjeet Kaur
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, Uttar Pradesh, India
- CSIR-Central
Scientific Instruments Organization (CSIR-CSIO), Sector 30C, Chandigarh 160030, India
| | - Saloni Sharma
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, Uttar Pradesh, India
- CSIR-Central
Scientific Instruments Organization (CSIR-CSIO), Sector 30C, Chandigarh 160030, India
| | - Shalini Singh
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, Uttar Pradesh, India
- CSIR-Central
Scientific Instruments Organization (CSIR-CSIO), Sector 30C, Chandigarh 160030, India
| | - Neha Bhardwaj
- Department
of Biotechnology, University Institute of Engineering Technology (UIET), Panjab University, Chandigarh 160014, India
| | - Akash Deep
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, Uttar Pradesh, India
- CSIR-Central
Scientific Instruments Organization (CSIR-CSIO), Sector 30C, Chandigarh 160030, India
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Xiong Y, Li W, Wen Q, Xu D, Ren J, Lin Q. Aptamer-engineered nanomaterials to aid in mycotoxin determination. Food Control 2022. [DOI: 10.1016/j.foodcont.2021.108661] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Pérez-Fernández B, Muñiz ADLE. Electrochemical biosensors based on nanomaterials for aflatoxins detection: A review (2015–2021). Anal Chim Acta 2022; 1212:339658. [DOI: 10.1016/j.aca.2022.339658] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 02/09/2022] [Accepted: 02/24/2022] [Indexed: 12/25/2022]
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Tasić N, Cavalcante L, Deffune E, Góes MS, Paixão TR, Gonçalves LM. Probeless and label-free impedimetric biosensing of D-dimer using gold nanoparticles conjugated with dihexadecylphosphate on screen-printed carbon electrodes. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.139244] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Zhang C, Jiang C, Lan L, Ping J, Ye Z, Ying Y. Nanomaterial-based biosensors for agro-product safety. Trends Analyt Chem 2021. [DOI: 10.1016/j.trac.2021.116369] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Gwiazda M, Bhardwaj SK, Kijeńska-Gawrońska E, Swieszkowski W, Sivasankaran U, Kaushik A. Impedimetric and Plasmonic Sensing of Collagen I Using a Half-Antibody-Supported, Au-Modified, Self-Assembled Monolayer System. BIOSENSORS-BASEL 2021; 11:bios11070227. [PMID: 34356698 PMCID: PMC8301786 DOI: 10.3390/bios11070227] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 07/03/2021] [Accepted: 07/05/2021] [Indexed: 11/16/2022]
Abstract
This research presents an electrochemical immunosensor for collagen I detection using a self-assembled monolayer (SAM) of gold nanoparticles (AuNPs) and covalently immobilized half-reduced monoclonal antibody as a receptor; this allowed for the validation of the collagen I concentration through two different independent methods: electrochemically by Electrochemical Impedance Spectroscopy (EIS), and optically by Surface Plasmon Resonance (SPR). The high unique advantage of the proposed sensor is based on the performance of the stable covalent immobilization of the AuNPs and enzymatically reduced half-IgG collagen I antibodies, which ensured their appropriate orientation onto the sensor's surface, good stability, and sensitivity properties. The detection of collagen type I was performed in a concentration range from 1 to 5 pg/mL. Moreover, SPR was utilized to confirm the immobilization of the monoclonal half-antibodies and sensing of collagen I versus time. Furthermore, EIS experiments revealed a limit of detection (LOD) of 0.38 pg/mL. The selectivity of the performed immunosensor was confirmed by negligible responses for BSA. The performed approach of the immunosensor is a novel, innovative attempt that enables the detection of collagen I with very high sensitivity in the range of pg/mL, which is significantly lower than the commonly used enzyme-linked immunosorbent assay (ELISA).
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Affiliation(s)
- Marcin Gwiazda
- Faculty of Materials Science and Engineering, Warsaw University of Technology, 141 Woloska Str., 02-507 Warsaw, Poland; (M.G.); (E.K.-G.); (W.S.)
- Department of Chemistry, The University of Manchester, Manchester M13 9PL, UK
- Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Tuwima 10, 10-748 Olsztyn, Poland;
| | - Sheetal K. Bhardwaj
- Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Tuwima 10, 10-748 Olsztyn, Poland;
- Van’t Hoff Institute for Molecular Sciences, University of Amsterdam Science Park 904, 1098 XH Amsterdam, The Netherlands
- Correspondence: or (S.K.B.); or (A.K.)
| | - Ewa Kijeńska-Gawrońska
- Faculty of Materials Science and Engineering, Warsaw University of Technology, 141 Woloska Str., 02-507 Warsaw, Poland; (M.G.); (E.K.-G.); (W.S.)
- Centre for Advanced Materials and Technologies CEZAMAT, Poleczki 19, 02-822 Warsaw, Poland
| | - Wojciech Swieszkowski
- Faculty of Materials Science and Engineering, Warsaw University of Technology, 141 Woloska Str., 02-507 Warsaw, Poland; (M.G.); (E.K.-G.); (W.S.)
| | - Unni Sivasankaran
- Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Tuwima 10, 10-748 Olsztyn, Poland;
| | - Ajeet Kaushik
- NanoBioTech Laboratory, Department of Natural Sciences, Florida Polytechnic University, Lakeland, FL 33805, USA
- Correspondence: or (S.K.B.); or (A.K.)
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Abnous K, Danesh NM, Ramezani M, Alibolandi M, Nameghi MA, Zavvar TS, Taghdisi SM. A novel colorimetric aptasensor for ultrasensitive detection of aflatoxin M 1 based on the combination of CRISPR-Cas12a, rolling circle amplification and catalytic activity of gold nanoparticles. Anal Chim Acta 2021; 1165:338549. [PMID: 33975697 DOI: 10.1016/j.aca.2021.338549] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 04/03/2021] [Accepted: 04/06/2021] [Indexed: 12/11/2022]
Abstract
Colorimetric approaches have received noticeable attention among sensing methods in view of simplicity and watching the color change of sample by the naked eyes. However, developing colorimetric sensing methods which show high sensitivity is still problematic. Herein, based on CRISPR-Cas12a, rolling circle amplification (RCA) and catalytic activity of gold nanoparticles (AuNPs), a colorimetric aptasensor was introduced for highly sensitive detection of aflatoxin M1 (AFM1). In the presence of AFM1, the CRISPR-Cas12a is inactivated and large single-stranded DNA (ssDNA) structures are formed on the surface of AuNPs following the addition of T4 DNA ligase and phi29 DNA polymerase. So, the sample color remains yellow after addition of 4-nitrophenol. However, no huge DNA structure is observed on the surface of AuNPs in the absence of target because of activation of CRISPR-Cas12a and digestion of primer. So, the color of sample switches to colorless. The results indicated that the biosensor had high selectivity toward AFM1 and the approach achieved a detection limit as low as 0.05 ng/L. In addition, it could sensitively identify AFM1 in the spiked milk samples. Overall, this approach is highly sensitive and does not require sophisticated equipment. Therefore, it maintains promising potential for other mycotoxins detection in real samples by simply replacing the applied sequences.
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Affiliation(s)
- Khalil Abnous
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Medicinal Chemistry, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Noor Mohammad Danesh
- Department of Medicinal Chemistry, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran; Research Institute of Sciences and New Technology, Mashhad, Iran
| | - Mohammad Ramezani
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mona Alibolandi
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Morteza Alinezhad Nameghi
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Taraneh Sadat Zavvar
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Seyed Mohammad Taghdisi
- Targeted Drug Delivery Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Pharmaceutical Biotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.
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19
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Ng HY, Lee WC, Kung CT, Li LC, Lee CT, Fu LM. Recent Advances in Microfluidic Devices for Contamination Detection and Quality Inspection of Milk. MICROMACHINES 2021; 12:558. [PMID: 34068982 PMCID: PMC8156775 DOI: 10.3390/mi12050558] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 05/05/2021] [Accepted: 05/11/2021] [Indexed: 02/08/2023]
Abstract
Milk is a necessity for human life. However, it is susceptible to contamination and adulteration. Microfluidic analysis devices have attracted significant attention for the high-throughput quality inspection and contaminant analysis of milk samples in recent years. This review describes the major proposals presented in the literature for the pretreatment, contaminant detection, and quality inspection of milk samples using microfluidic lab-on-a-chip and lab-on-paper platforms in the past five years. The review focuses on the sample separation, sample extraction, and sample preconcentration/amplification steps of the pretreatment process and the determination of aflatoxins, antibiotics, drugs, melamine, and foodborne pathogens in the detection process. Recent proposals for the general quality inspection of milk samples, including the viscosity and presence of adulteration, are also discussed. The review concludes with a brief perspective on the challenges facing the future development of microfluidic devices for the analysis of milk samples in the coming years.
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Affiliation(s)
- Hwee-Yeong Ng
- Division of Nephrology, Kaohsiung Chang Gung Memorial Hospital, College of Medicine, Chang Gung University, Kaohsiung 833, Taiwan; (H.-Y.N.); (W.-C.L.); (L.-C.L.); (C.-T.L.)
| | - Wen-Chin Lee
- Division of Nephrology, Kaohsiung Chang Gung Memorial Hospital, College of Medicine, Chang Gung University, Kaohsiung 833, Taiwan; (H.-Y.N.); (W.-C.L.); (L.-C.L.); (C.-T.L.)
| | - Chia-Te Kung
- Department of Emergency Medicine, Kaohsiung Chang Gung Memorial Hospital, College of Medicine, Chang Gung University, Kaohsiung 833, Taiwan;
| | - Lung-Chih Li
- Division of Nephrology, Kaohsiung Chang Gung Memorial Hospital, College of Medicine, Chang Gung University, Kaohsiung 833, Taiwan; (H.-Y.N.); (W.-C.L.); (L.-C.L.); (C.-T.L.)
| | - Chien-Te Lee
- Division of Nephrology, Kaohsiung Chang Gung Memorial Hospital, College of Medicine, Chang Gung University, Kaohsiung 833, Taiwan; (H.-Y.N.); (W.-C.L.); (L.-C.L.); (C.-T.L.)
| | - Lung-Ming Fu
- Department of Engineering Science, National Cheng Kung University, Tainan 701, Taiwan
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Development of electrochemical aptasensor based on gold nanoparticles and electrospun carbon nanofibers for the detection of aflatoxin M1 in milk. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2021. [DOI: 10.1007/s11694-020-00780-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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21
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Jalalian SH, Lavaee P, Ramezani M, Danesh NM, Alibolandi M, Abnous K, Taghdisi SM. An optical aptasensor for aflatoxin M1 detection based on target-induced protection of gold nanoparticles against salt-induced aggregation and silica nanoparticles. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 246:119062. [PMID: 33080511 DOI: 10.1016/j.saa.2020.119062] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 09/25/2020] [Accepted: 10/06/2020] [Indexed: 06/11/2023]
Abstract
Not only intoxications of aflatoxins are significant risk for human beings, but also; the contamination with these toxins affect the economy. Therefore, developing a rapid, precise and inexpensive determination method is vitally important. Here, a colorimetric aptasensor is introduced for the detection of aflatoxin M1 (AFM1) based on the preservation of gold nanoparticles (AuNPs) against NaCl-induced aggregation by detaching of complementary strand of aptamer (CS) from the aptamer-modified streptavidin coated silica nanoparticles (SNPs) following the addition of target. So, the color of sample remains red. While, in the lack of AFM1, salt-induced aggregation of AuNPs occurs and the color of sample becomes purple as the aptamer/CS (dsDNA)-modified SNPs is stable and CS cannot bind to AuNPs. The proposed aptasensor could detect AFM1 in a linear dynamic range, 300-75,000 ng/L, with a detection limit of 30 ng/L. Also, the sensing method was effectively applied for AFM1 recognition in milk samples.
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Affiliation(s)
- Seyed Hamid Jalalian
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Students Research Committee, Department of Pharmaceutical Nanotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran; Academic Center for Education, Culture and Research (ACECR)-Mashhad Branch, Mashhad, Iran
| | - Parirokh Lavaee
- Academic Center for Education, Culture and Research, Research Institute for Industrial Biotechnology, Industrial Biotechnology on Microorganisms, Mashhad, Iran
| | - Mohammad Ramezani
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | | | - Mona Alibolandi
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Khalil Abnous
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran.
| | - Seyed Mohammad Taghdisi
- Targeted Drug Delivery Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Pharmaceutical Biotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.
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Investigation of a Truncated Aptamer for Ofloxacin Detection Using a Rapid FRET-Based Apta-Assay. Antibiotics (Basel) 2020; 9:antibiotics9120860. [PMID: 33287135 PMCID: PMC7761777 DOI: 10.3390/antibiotics9120860] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Revised: 11/24/2020] [Accepted: 12/01/2020] [Indexed: 11/17/2022] Open
Abstract
In this work, we describe the use of a new truncated aptamer for the determination of ofloxacin (OFL), being a principal quinolone commonly used in both human and animal healthcare. Since the affinity of a 72-mer ssDNA sequence has been previously described without further investigations, this paper demonstrates the first computational prediction of the binding motif between this aptamer and OFL through in silico molecular docking studies. Besides, we suggest the application of the characterized recognition mechanism in a simple FRET (Förster Resonance Energy Transfer) pattern for the rapid aptasensing of the quinolone of interest. Accordingly, our approach harnesses the fluorescence quenching of the fluorescein-tagged aptamer (FAM-APT) induced by its partial hybridization to a tetramethyl rhodamine-labelled complementary ssDNA (TAMRA-cDNA). In such a structure, dye labels brought into close proximity act as a FRET pair. Upon ofloxacin addition, an affinity competition occurs to form a more stable FAM-APT/OFL complex, thus unquenching the FAM-APT signal. Interestingly, the recovered fluorescence intensity was found to correlate well with the antibiotic's concentrations in the range of 0.2-200 μM in HEPES buffer, with a linear response that ranged between 0.2 and 20 μM. The rapid apta-assay achieved limits of detection and quantification of 0.12 and 0.40 μM, respectively. The truncated aptamer has also shown an improved specificity toward OFL than other quinolones, compared to the original full-length aptamer described in previous works. Finally, the practical application of the developed apta-assay was successfully confirmed to detect OFL quinolone in spiked milk samples, with satisfactory recoveries ranging between 97.4% and 111.4%.
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24
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Label-free capacitive assaying of biomarkers for molecular diagnostics. Nat Protoc 2020; 15:3879-3893. [PMID: 33106679 DOI: 10.1038/s41596-020-0390-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Accepted: 07/28/2020] [Indexed: 11/08/2022]
Abstract
The label-free analysis of biomarkers offers important advantages in developing point-of-care (PoC) biosensors. In contrast to label-based methodologies, such as ELISA, label-free analysis enables direct detection of targets without additional steps and labeled reagents. Nonetheless, label-free approaches require high sensitivity to detect the intrinsic features of a biomarker and low levels of nonspecific signals. Electrochemical capacitance, [Formula: see text], is a feature of electroactive nanoscale films that can be measured using electrochemical impedance spectroscopy. [Formula: see text] is promising as an electrochemical transducing signal for the development of high-sensitivity, reagentless and label-free molecular diagnostic assays. We used a proprietary ferrocene (Fc)-tagged peptide that is able to self-assemble onto gold electrodes (thicknesses <2 nm) to which any biological receptor can be coupled. When coupled with biological receptors (e.g., a monoclonal antibody), [Formula: see text] exhibited by the redox-tagged peptide changes as a function of the target concentration. We provide herein the steps for the qualitative and quantitative detection of dengue non-structural protein 1 (NS1) biomarker. Detection of NS1 can be used to diagnose dengue virus infection, which causes epidemics each year in tropical and subtropical regions of the world. Including the pre-treatment of the electrode surface, the analysis takes ~25 h. This time can be reduced to minutes if the electrode surface is fabricated separately, demonstrating that [Formula: see text] is promising for PoC applications. We hope this protocol will serve as a reference point for researchers and companies that intend to further develop capacitive devices for molecular diagnostic assays.
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Beitollahi H, Tajik S, Dourandish Z, Zhang K, Le QV, Jang HW, Kim SY, Shokouhimehr M. Recent Advances in the Aptamer-Based Electrochemical Biosensors for Detecting Aflatoxin B1 and Its Pertinent Metabolite Aflatoxin M1. SENSORS (BASEL, SWITZERLAND) 2020; 20:E3256. [PMID: 32521629 PMCID: PMC7309004 DOI: 10.3390/s20113256] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Revised: 05/27/2020] [Accepted: 06/02/2020] [Indexed: 02/07/2023]
Abstract
The notable toxicological impacts of aflatoxin B1 (AFB1) and its main metabolite, aflatoxin M1 (AFM1), on human being health make the evaluation of food quality highly significant. Due to the toxicity of those metabolites-even very low content in foodstuffs-it is crucial to design a sensitive and reliable procedure for their detection. Electrochemical aptamer-based biosensors are considered the most encouraging option, based on multi-placed analysis, rapid response, high sensitivity and specificity. The present review specifically emphasizes the potential utilization of the electrochemical aptasensors for determining the AFM1 and AFB1 with different electrodes.
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Affiliation(s)
- Hadi Beitollahi
- Environment Department, Institute of Science and High Technology and Environmental Sciences, Graduate University of Advanced Technology, Kerman 76315117, Iran; (H.B.); (Z.D.)
| | - Somayeh Tajik
- Research Center for Tropical and Infectious Diseases, Kerman University of Medical Sciences, Kerman 7616913555, Iran
| | - Zahra Dourandish
- Environment Department, Institute of Science and High Technology and Environmental Sciences, Graduate University of Advanced Technology, Kerman 76315117, Iran; (H.B.); (Z.D.)
| | - Kaiqiang Zhang
- Jiangsu Key Laboratory of Advanced Organic Materials, Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, Jiangsu, China;
| | - Quyet Van Le
- Institute of Research and Development, Duy Tan University, Da Nang 550000, Vietnam
| | - Ho Won Jang
- Department of Materials Science and Engineering, Research Institute of Advanced Materials, Seoul National University, Seoul 08826, Korea;
| | - Soo Young Kim
- Department of Materials Science and Engineering, Korea University, 145, Anam-ro Seongbuk-gu, Seoul 02841, Korea
| | - Mohammadreza Shokouhimehr
- Department of Materials Science and Engineering, Research Institute of Advanced Materials, Seoul National University, Seoul 08826, Korea;
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Pang YH, Guo LL, Shen XF, Yang NC, Yang C. Rolling circle amplified DNAzyme followed with covalent organic frameworks: Cascade signal amplification of electrochemical ELISA for alfatoxin M1 sensing. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.136055] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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An X, Shi X, Zhang H, Yao Y, Wang G, Yang Q, Xia L, Sun X. An electrochemical immunosensor based on a combined amplification strategy with the GO–CS/CeO2–CS nanocomposite for the detection of aflatoxin M1. NEW J CHEM 2020. [DOI: 10.1039/c9nj04804a] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Herein, a sensitive electrochemical immunosensor modified with graphene oxide–chitosan (GO–CS) and cerium oxide–chitosan (CeO2–CS) using screen-printed electrodes (SPEs) was developed for the determination of aflatoxin M1(AFM1) in milk.
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Affiliation(s)
- Xingshuang An
- School of Agricultural Engineering and Food Science
- Shandong University of Technology
- Zibo 255049
- China
- Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability
| | - Xiaojie Shi
- School of Agricultural Engineering and Food Science
- Shandong University of Technology
- Zibo 255049
- China
- Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability
| | - Hui Zhang
- School of Agricultural Engineering and Food Science
- Shandong University of Technology
- Zibo 255049
- China
- Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability
| | - Yao Yao
- School of Agricultural Engineering and Food Science
- Shandong University of Technology
- Zibo 255049
- China
- Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability
| | - Guangxian Wang
- School of Agricultural Engineering and Food Science
- Shandong University of Technology
- Zibo 255049
- China
- Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability
| | - Qingqing Yang
- School of Agricultural Engineering and Food Science
- Shandong University of Technology
- Zibo 255049
- China
- Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability
| | - Lianming Xia
- School of Agricultural Engineering and Food Science
- Shandong University of Technology
- Zibo 255049
- China
- Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability
| | - Xia Sun
- School of Agricultural Engineering and Food Science
- Shandong University of Technology
- Zibo 255049
- China
- Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability
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28
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Kulikova TN, Porfireva AV, Evtugyn GA, Hianik T. Electrochemical Aptasensor with Layer‐by‐layer Deposited Polyaniline for Aflatoxin M1 Voltammetric Determination. ELECTROANAL 2019. [DOI: 10.1002/elan.201900274] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- T. N. Kulikova
- Analytical Chemistry Department of Kazan Federal University, Kremlevskaya, 18 420008 Kazan Russian Federation
- Department of Nuclear Physics and BiophysicsComenius University Mlynska dolina F1 842 48 Bratislava Slovakia
| | - A. V. Porfireva
- Analytical Chemistry Department of Kazan Federal University, Kremlevskaya, 18 420008 Kazan Russian Federation
| | - G. A. Evtugyn
- Analytical Chemistry Department of Kazan Federal University, Kremlevskaya, 18 420008 Kazan Russian Federation
| | - T. Hianik
- Department of Nuclear Physics and BiophysicsComenius University Mlynska dolina F1 842 48 Bratislava Slovakia
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