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Shruti A, Bage N, Kar P. Nanomaterials based sensors for analysis of food safety. Food Chem 2024; 433:137284. [PMID: 37703589 DOI: 10.1016/j.foodchem.2023.137284] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 08/10/2023] [Accepted: 08/23/2023] [Indexed: 09/15/2023]
Abstract
The freshnessof the food is a major issue because spoiled food lacks critical nutrients for growth and could be harmful to human health if consumed directly. Nanomaterials are captivating due to their unique properties like large surface area, high selectivity, small dimension, great biocompatibility and conductivity, real-time onsite analysis, etc. which give them an advantage over conventional evaluation techniques. Despite these advantages of nanomaterials used in food safety and their preservation, food products can still get affected by various environmental factors (like pH, temperature, etc.), making the use of time-temperature indicators more condescending. This review is a comprehensive study on food safety, its causes, the responsible analytes, their remedies by various nanomaterials, the development of various nanosensors, and the various challenges faced in maintaining food safety standards to reduce the risk of contaminants.
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Affiliation(s)
- Asparshika Shruti
- Department of Chemistry, Birla Institute of Technology, Mesra, Ranchi, Jharkhand, India
| | - Nirgaman Bage
- Department of Chemistry, Birla Institute of Technology, Mesra, Ranchi, Jharkhand, India
| | - Pradip Kar
- Department of Chemistry, Birla Institute of Technology, Mesra, Ranchi, Jharkhand, India.
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2
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Bhupathi P, Elhassan A-Elgadir TM, Mohammed Ali RH, Sanaan Jabbar H, Gulnoza D, Joshi SK, Kadhem Abid M, Ahmed Said E, Alawadi A, Alsaalamy A. Fluorescence Resonance Energy Transfer (FRET)-Based Sensor for Detection of Foodborne Pathogenic Bacteria: A Review. Crit Rev Anal Chem 2023:1-18. [PMID: 37917532 DOI: 10.1080/10408347.2023.2274050] [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: 11/04/2023]
Abstract
Sensitive and rapid determination of foodborne pathogenic bacteria is of practical importance for the control and prevention of foodborne illnesses. Nowadays, with the prosperous development of fluorescence assays, fluorescence resonance energy transfer (FRET)-derived diagnostic strategies are extensively employed in quantitative analysis of different pathogenic bacteria in food-related matrices, which displays a rapid, simple, stable, reliable, cost-effective, selective, sensitive, and real-time way. Considering the extensive efforts that have been made in this field so far, we here discuss the up-to-date developments of FRET-based diagnostic approaches for the determination of key foodborne pathogens like Staphylococcus aureus, Escherichia coli, Vibrio parahaemolyticus, Salmonella spp., Campylobacter spp., and Bacillus cereus in complex food-related matrices. Moreover, the principle of this technology, the choosing standards of acceptor-donor pairs, and the fluorescence properties are also profiled. Finally, the current prospects and challenges in this field are also put forward.
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Affiliation(s)
- Priyadharshini Bhupathi
- VIT School of Agricultural Innovations and Advanced Learning (VAIAL), Vellore Institute of Technology, Vellore-632014, Tamil Nadu, India
| | | | | | - Hijran Sanaan Jabbar
- Department of Chemistry, College of Science, Salahaddin University-Erbil, Kurdistan Region, Iraq
- Department of Medical Laboratory Science, College of Health Sciences, Lebanese French University, Erbil, Kurdistan Region, Iraq
| | - Djakhangirova Gulnoza
- Department of Food Products Technology, Tashkent Institute of Chemical Technology, Navoi street 32, Tashkent 100011, Uzbekistan
| | - S K Joshi
- Department of Mechanical Engineering, Uttaranchal Institute of Technology, Uttaranchal University, Dehradun-248007, India
| | - Mohammed Kadhem Abid
- Department of Anesthesia, College of Health and medical Technology, Al-Ayen University, Thi-Qar, Iraq
| | - Esraa Ahmed Said
- Department of Dentistry, Al-Noor University College, Nineveh, Iraq
| | - Ahmed Alawadi
- College of Technical Engineering, The Islamic University, Najaf, Iraq
- College of Technical Engineering, The Islamic University of Al Diwaniyah, Al Diwaniyah, Iraq
- College of Technical Engineering, The Islamic University of Babylon, Babylon, Iraq
| | - Ali Alsaalamy
- College of Technical Engineering, Imam Ja'afar Al-Sadiq University, Al-Muthanna 66002, Iraq
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3
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Battisti A, Samal SK, Puppi D. Biosensing Systems Based on Graphene Oxide Fluorescence Quenching Effect. MICROMACHINES 2023; 14:1522. [PMID: 37630058 PMCID: PMC10456591 DOI: 10.3390/mi14081522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 07/20/2023] [Accepted: 07/26/2023] [Indexed: 08/27/2023]
Abstract
Graphene oxide (GO) is a versatile material obtained by the strong oxidation of graphite. Among its peculiar properties, there is the outstanding ability to significantly alter the fluorescence of many common fluorophores and dyes. This property has been exploited in the design of novel switch-ON and switch-OFF fluorescence biosensing platforms for the detection of a plethora of biomolecules, especially pathological biomarkers and environmental contaminants. Currently, novel advanced strategies are being developed for therapeutic, diagnostic and theranostic approaches to widespread pathologies caused by viral or bacterial agents, as well as to cancer. This work illustrates an overview of the most recent applications of GO-based sensing systems relying on its fluorescence quenching effect.
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Affiliation(s)
- Antonella Battisti
- NEST, Istituto Nanoscienze-CNR and Scuola Normale Superiore, p.zza San Silvestro 12, I-56127 Pisa, Italy
| | - Sangram Keshari Samal
- Laboratory of Biomaterials and Regenerative Medicine for Advanced Therapies, ICMR-RMRC, Bhubaneswar 751023, Odisha, India;
| | - Dario Puppi
- BIOLab Research Group, Department of Chemistry and Industrial Chemistry, University of Pisa, UdR INSTM Pisa, Via Moruzzi 13, I-56124 Pisa, Italy;
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4
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Tavassoli M, Khezerlou A, Hamishehkar H, Ehsani A, Khalilzadeh B. An ultrasensitive aptamer-based fluorescent on/off system for trace amount evaluation of Yersinia enterocolitica in food samples. Mikrochim Acta 2023; 190:253. [PMID: 37286753 DOI: 10.1007/s00604-023-05820-0] [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: 02/14/2023] [Accepted: 05/02/2023] [Indexed: 06/09/2023]
Abstract
An innovative aptamer labeled with 5-FAM has been developed with a high affinity for Yersinia enterocolitica (Y. enterocolitica) using graphene oxide (GO) as a quenching platform. The selectivity of the prepared system was evaluated in the presence of common coexisted bacteria like Yersinia pseudotuberculosis, Staphylococcus aureus, Listeria monocytogenes, Escherichia coli, and Salmonella typhimurium. Some experimental factors like pH and stability were investigated. The results showed that in the absence of Y. enterocolitica, aptamer labeled with 5-FAM was bonded with GO, causing fluorescence to be relatively weak. After the addition of Y. enterocolitica, the aptamer is released from the GO surface and binds to the target bacteria, and significantly increases the fluorescence intensity with an excitation wavelength of 410 nm and an emission wavelength of 530 nm. After optimizing all conditions, the system exhibited a wide linear response for Y. enterocolitica in the concentration range 10 to 1.0 × 109 CFU•mL-1 and the limit of detection (LOD) was 3 CFU•mL-1. This system demonstrated that GO-designed aptamers can be successful in detecting Y. enterocolitica in whole-cell forms, making them potentially useful for screening and rapid detection.
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Affiliation(s)
- Milad Tavassoli
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Food Science and Technology, Faculty of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
- Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Arezou Khezerlou
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Food Science and Technology, Faculty of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
- Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hamed Hamishehkar
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ali Ehsani
- Department of Food Science and Technology, Faculty of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Balal Khalilzadeh
- Stem Cell Research Center (SCRC), Tabriz University of Medical Sciences, Tabriz, 51666-14711, Iran
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Subodh, Ravina, Priyanka, Narang J, Mohan H. Biosensors for phytohormone Abscisic acid and its role in humans: A review. SENSORS INTERNATIONAL 2023. [DOI: 10.1016/j.sintl.2023.100234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/24/2023] Open
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6
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Liu R, Ali S, Huang D, Zhang Y, Lü P, Chen Q. A Sensitive Nucleic Acid Detection Platform for Foodborne Pathogens Based on CRISPR-Cas13a System Combined with Polymerase Chain Reaction. FOOD ANAL METHOD 2022. [DOI: 10.1007/s12161-022-02419-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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7
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Immunoassay based on urease-encapsulated metal-organic framework for sensitive detection of foodborne pathogen with pH meter as a readout. Mikrochim Acta 2022; 189:358. [PMID: 36040541 DOI: 10.1007/s00604-022-05462-8] [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: 07/04/2022] [Accepted: 08/16/2022] [Indexed: 10/14/2022]
Abstract
The potential of enzyme-encapsulated metal-organic framework (MOF) as an antibody label for the construction of enzyme-linked immunosorbent assay (ELISA) is demonstrated. Zeolitic imidazolate framework-90 (ZIF-90) was employed as a MOF model to load urease and pig immunoglobulin G (IgG) antibody. This leads to the production of U@ZIF-90/IgG composite, in which urease was encapsulated in ZIF-90 to form U@ZIF-90 for amplifying the detection signal, while IgG was anchored on the surface of U@ZIF-90 for specifically recognizing Staphylococcus aureus (S. aureus). Benefiting from the unique porous structure of ZIF-90, the U@ZIF-90 not only allows urease to be encapsulated with an ultrahigh loading efficiency, but also shields the loaded urease against harsh environments. The U@ZIF-90 shows a threefold higher catalytic activity than free urease due to the confinement effect. These findings lead to an ELISA with greatly enhanced sensitivity for S. aureus detection. By using a portable pH meter as a readout, the ELISA has a linear response that covers 10 to 109 CFU/mL S. aureus with a detection limit of 1.96 CFU/mL and exhibits high selectivity over other bacteria. The successful determination of S. aureus in milk samples demonstrates the applicability of the ELISA in a complex biological matrix.
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Li J, Li S, Wang X, Zhu Z, Zhang Q, Liu S, Wang Y, Huang J. Responsive Cysteine-Lighted Silver Nanoclusters Regulated by Highly Catalytic G-Quadruplex DNAzyme for Ultrasensitive Detection of Salmonella Typhimurium. FOOD ANAL METHOD 2022. [DOI: 10.1007/s12161-022-02300-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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9
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A Simple Fluorescent Aptasensing Platform Based on Graphene Oxide for Dopamine Determination. Appl Biochem Biotechnol 2022; 194:1925-1937. [DOI: 10.1007/s12010-022-03802-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/31/2021] [Indexed: 11/26/2022]
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10
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Umapathi R, Park B, Sonwal S, Rani GM, Cho Y, Huh YS. Advances in optical-sensing strategies for the on-site detection of pesticides in agricultural foods. Trends Food Sci Technol 2022. [DOI: 10.1016/j.tifs.2021.11.018] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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11
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Fu L, Chen Q, Jia L. Carbon dots and gold nanoclusters assisted construction of a ratiometric fluorescent biosensor for detection of Gram-negative bacteria. Food Chem 2021; 374:131750. [PMID: 34871851 DOI: 10.1016/j.foodchem.2021.131750] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 11/12/2021] [Accepted: 11/29/2021] [Indexed: 01/20/2023]
Abstract
A core-satellite nanocomposite was prepared by encapsulating the photostable blue carbon dots (BCDs) in the core of silica as the reference signal readout, and the target-sensitive gold nanoclusters (AuNCs) covalently linked to the surface of silica as the respond signal readout. The nanocomposite (BCD@SiO2@AuNC) was used as a ratiometric fluorescent sensor to realize the selective detection of Gram-negative bacteria. The detection principle was based on the quenching of Cu2+ toward AuNCs and the reduction of Gram-negative bacteria toward Cu2+. The sensor exhibited good selectivity toward Gram-negative bacteria owing to the copper-homeostasis mechanism possessed by the bacteria. The sensor demonstrated linear response to the logarithm concentration of Gram-negative bacteria with determination coefficients higher than 0.912. The feasibility of the sensor was verified by analysis of Gram-negative bacteria in eggshell, swimming pool water, as well as Chinese cabbage samples with recoveries ranging from 93.9% to 109%.
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Affiliation(s)
- Li Fu
- Ministry of Education Key Laboratory of Laser Life Science & Guangdong Provincial Key Laboratory of Laser Life Science & Guangzhou Key Laboratory of Spectral Analysis and Functional Probes, College of Biophotonics, South China Normal University, Guangzhou 510631, China
| | - Qingmei Chen
- Ministry of Education Key Laboratory of Laser Life Science & Guangdong Provincial Key Laboratory of Laser Life Science & Guangzhou Key Laboratory of Spectral Analysis and Functional Probes, College of Biophotonics, South China Normal University, Guangzhou 510631, China
| | - Li Jia
- Ministry of Education Key Laboratory of Laser Life Science & Guangdong Provincial Key Laboratory of Laser Life Science & Guangzhou Key Laboratory of Spectral Analysis and Functional Probes, College of Biophotonics, South China Normal University, Guangzhou 510631, China.
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12
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Li B, Feng D, Miao Y, Liang X, Gu L, Lan H, Gao S, Zhang Y, Deng Y, Geng L. The systemic characterization of aptamer cocktail for bacterial detection studied by graphene oxide-based fluorescence resonance energy transfer aptasensor. J Mol Recognit 2021; 34:e2934. [PMID: 34553439 DOI: 10.1002/jmr.2934] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Accepted: 08/12/2021] [Indexed: 12/15/2022]
Abstract
Aptamers have gained significant attention as the molecular recognition element to replace antibodies in sensor development and target delivery. Nevertheless, it is noteworthy that unlike the wide application of polyvalent antibodies, existing researches on the combined use of heterologous aptamers with similar recognition affinity and specificity for target detection were sporadic. Herein, first, the wide existence of polyaptamer for bacteria was revealed through the summary of existing literature. Furthermore, based on the establishment of a sensitive aptamer cocktail/graphene oxide fluorescence resonance energy transfer polyaptasensor with a detection limit as low as 10 CFU/ml, the systemic characterization of aptamer cocktails in bacterial detection was carried out by taking E. coli, Vi. parahemolyticus, S. typhimurium, and C. sakazakii as the assay targets. It was turned out that the polyaptasensors for C. sakazakii and S. typhimurium owned prevalence in the broader concentration range of target bacteria. While the polyaptasensors for E. coli and V. parahemolyticus outperformed monoaptasensor mainly in the lower concentration of target bacteria. The linear relationships between fluorescence recovery and the concentration of bacteria were also discussed. The different characteristics of the bacterial cellular membrane, including the binding affinity and the robustness to variation, are analyzed to be the main reason for the diverse detection performance of aptasensors. The study here enhances a sensor detection strategy with super sensitivity. More importantly, this systemic study on the aptamer cocktail in reference to antibodies will advance the in-depth understanding and rational design of aptamer based biological recognition, detection, and targeting.
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Affiliation(s)
- Baichang Li
- Department of Life, Beijing Institute of Technology, Beijing, China
| | - Dongwei Feng
- Department of Life, Beijing Institute of Technology, Beijing, China
| | - Yunfei Miao
- Department of Life, Beijing Institute of Technology, Beijing, China
| | - Xuewang Liang
- Department of Life, Beijing Institute of Technology, Beijing, China
| | - Le Gu
- Biological Detection Department, BOE Technology Group Co., Ltd., Beijing, China
| | - Hongying Lan
- Department of Life, Beijing Institute of Technology, Beijing, China
| | - Shimeng Gao
- College of Agriculture and Life Sciences, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Yaxi Zhang
- Department of Life, Beijing Institute of Technology, Beijing, China
| | - Yulin Deng
- Department of Life, Beijing Institute of Technology, Beijing, China
| | - Lina Geng
- Department of Life, Beijing Institute of Technology, Beijing, China
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13
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Advancement in Salmonella Detection Methods: From Conventional to Electrochemical-Based Sensing Detection. BIOSENSORS-BASEL 2021; 11:bios11090346. [PMID: 34562936 PMCID: PMC8468554 DOI: 10.3390/bios11090346] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 09/06/2021] [Accepted: 09/09/2021] [Indexed: 02/07/2023]
Abstract
Large-scale food-borne outbreaks caused by Salmonella are rarely seen nowadays, thanks to the advanced nature of the medical system. However, small, localised outbreaks in certain regions still exist and could possess a huge threat to the public health if eradication measure is not initiated. This review discusses the progress of Salmonella detection approaches covering their basic principles, characteristics, applications, and performances. Conventional Salmonella detection is usually performed using a culture-based method, which is time-consuming, labour intensive, and unsuitable for on-site testing and high-throughput analysis. To date, there are many detection methods with a unique detection system available for Salmonella detection utilising immunological-based techniques, molecular-based techniques, mass spectrometry, spectroscopy, optical phenotyping, and biosensor methods. The electrochemical biosensor has growing interest in Salmonella detection mainly due to its excellent sensitivity, rapidity, and portability. The use of a highly specific bioreceptor, such as aptamers, and the application of nanomaterials are contributing factors to these excellent characteristics. Furthermore, insight on the types of biorecognition elements, the principles of electrochemical transduction elements, and the miniaturisation potential of electrochemical biosensors are discussed.
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14
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Li G, Wei Y, Ma L, Mao Y, Xun R, Deng Y. A novel highly sensitive soy aptasensor for antigen β-conglycinin determination. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2021; 13:3059-3067. [PMID: 34137405 DOI: 10.1039/d1ay00701g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
β-Conglycinin, composed of three subunits (α', α and β), is the main allergen of soy protein which can cause severe allergic reactions, such as diarrhea, decreased growth performance and even death. Among them, the β subunit is more stable and difficult to remove, being one of the main nutritional inhibitors, which can be used to evaluate the concentration of β-conglycinin. However, there is no effective, accurate method for its β subunit rapid detection. Herein, we have successfully selected a high affinity β subunit aptamer (Kd = 6.9 nM) and developed a highly sensitive aptasensor. The aptasensor displayed high specificity and the β subunit at a concentration of 70-350 nM could be detected with a detection limit of 4.48 nM (3S/N). In addition, the recoveries of β subunit were more than 90%, demonstrating its practical properties for complicated conditions such as food quality control and disease diagnosis, without requiring expensive and sophisticated equipment.
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Affiliation(s)
- Guohui Li
- National Engineering Laboratory for Cereal Fermentation Technology (NELCF), Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China.
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Abstract
Graphene-based FRET aptasensors can be realized only by unique combinations of aptamer that can be freely functionalized by chemical modification, and graphene/graphene oxide that works as an excellent fluorescence acceptor at the same time as aptamer adsorbates. This review describes the principles of the sensor, several applications to microchannel devices, improvement of the sensing performance by molecular design of the aptamer and remarks on future prospects based on an introduction of recent works and achievements, including the author's paper. The sensor employs DNA modified with graphene/graphene oxide at the terminal as the molecular probe. This system is supported by the excellent property of DNA that does not lose the molecular recognition ability even due to a chemical modification at the terminal. I hope that this review will be useful for developing research on higher performance of graphene aptasensors in the future.
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Affiliation(s)
- Yuko Ueno
- Department of Applied Chemistry, Faculty of Science and Engineering, Chuo University
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16
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Liu W, Miao L, Li X, Xu Z. Development of fluorescent probes targeting the cell wall of pathogenic bacteria. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2020.213646] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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17
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Ning Y, Hu J, Lu F. Aptamers used for biosensors and targeted therapy. Biomed Pharmacother 2020; 132:110902. [PMID: 33096353 PMCID: PMC7574901 DOI: 10.1016/j.biopha.2020.110902] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 10/12/2020] [Accepted: 10/14/2020] [Indexed: 01/07/2023] Open
Abstract
Aptamers are single-stranded nucleic acid sequences that can bind to target molecules with high selectivity and affinity. Most aptamers are screened in vitro by a combinatorial biology technique called systematic evolution of ligands by exponential enrichment (SELEX). Since aptamers were discovered in the 1990s, they have attracted considerable attention and have been widely used in many fields owing to their unique advantages. In this review, we present an overview of the advancements made in aptamers used for biosensors and targeted therapy. For the former, we will discuss multiple aptamer-based biosensors with different principles detected by various signaling methods. For the latter, we will focus on aptamer-based targeted therapy using aptamers as both biotechnological tools for targeted drug delivery and as targeted therapeutic agents. Finally, challenges and new perspectives associated with these two regions were further discussed. We hope that this review will help researchers interested in aptamer-related biosensing and targeted therapy research.
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Affiliation(s)
- Yi Ning
- Department of Microbiology, The Medicine School of Hunan University of Chinese Medicine, Changsha, Hunan, 410208, PR China
| | - Jue Hu
- Department of Microbiology, The Medicine School of Hunan University of Chinese Medicine, Changsha, Hunan, 410208, PR China
| | - Fangguo Lu
- Department of Microbiology, The Medicine School of Hunan University of Chinese Medicine, Changsha, Hunan, 410208, PR China.
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18
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Shen Y, Xu L, Li Y. Biosensors for rapid detection of Salmonella in food: A review. Compr Rev Food Sci Food Saf 2020; 20:149-197. [PMID: 33443806 DOI: 10.1111/1541-4337.12662] [Citation(s) in RCA: 69] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2020] [Revised: 09/04/2020] [Accepted: 10/01/2020] [Indexed: 12/13/2022]
Abstract
Salmonella is one of the main causes of foodborne infectious diseases, posing a serious threat to public health. It can enter the food supply chain at various stages of production, processing, distribution, and marketing. High prevalence of Salmonella necessitates efficient and effective approaches for its identification, detection, and monitoring at an early stage. Because conventional methods based on plate counting and real-time polymerase chain reaction are time-consuming and laborious, novel rapid detection methods are urgently needed for in-field and on-line applications. Biosensors provide many advantages over conventional laboratory assays in terms of sensitivity, specificity, and accuracy, and show superiority in rapid response and potential portability. They are now recognized as promising alternative tools and one of the most on-site applicable and end user-accessible methods for rapid detection. In recent years, we have witnessed a flourishing of studies in the development of robust and elaborate biosensors for detection of Salmonella in food. This review aims to provide a comprehensive overview on Salmonella biosensors by highlighting different signal-transducing mechanisms (optical, electrochemical, piezoelectric, etc.) and critically analyzing its recent trends, particularly in combination with nanomaterials, microfluidics, portable instruments, and smartphones. Furthermore, current challenges are emphasized and future perspectives are discussed.
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Affiliation(s)
- Yafang Shen
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China.,Department of Biological and Agricultural Engineering, University of Arkansas, Fayetteville, Arkansas
| | - Lizhou Xu
- Department of Materials, Imperial College London, London, UK
| | - Yanbin Li
- Department of Biological and Agricultural Engineering, University of Arkansas, Fayetteville, Arkansas
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Fu L, Qian Y, Zhou J, Zheng L, Wang Y. Fluorescence-based quantitative platform for ultrasensitive food allergen detection: From immunoassays to DNA sensors. Compr Rev Food Sci Food Saf 2020; 19:3343-3364. [PMID: 33337031 DOI: 10.1111/1541-4337.12641] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 08/12/2020] [Accepted: 09/01/2020] [Indexed: 01/10/2023]
Abstract
Food allergies are global health issue with an increasing prevalence that affect food safety; hence, food allergen detection, labeling, and management are considered to be important priorities in the food industry. In this critical review, we provide a comprehensive overview of several fluorescence-based platforms based on different biorecognition ligands, such as antibodies, DNA, aptamers, and cells, for food allergen quantification. Traditional analytical methods are generally unsuitable for food manufacturers to accomplish the real-time identification of food allergens in food products. Therefore, it is important to develop simple, rapid, inexpensive, accurate, and sensitive methods to improve user accessibility. A fluorescence-based quantitative platform provides an excellent detection platform for food allergens because of its high sensitivity. This review summarizes the traditional antibody-based fluorescent techniques for food allergen detection, such as the time-resolved fluoroimmunoassay , immunofluorescence imaging, fluorescence enzyme-linked immune sorbent assay, flow injection fluoroimmunoassay, and fluorescence immunosensors. However, these methods suffer from disadvantages such as the significant rate of false-positive and false-negative results due to antibody cross-reactivity with nontarget food components in the complex food matrix and epitope degradation during food processing. Hence, different types of fluorescence-based immunoassays are suitable for standardization and quantification of allergens in fresh foods. In addition, we summarize new fluorescence-based quantitative platforms, including fluorescence genosensors, fluorescence cell sensors, and fluorescence aptamer sensors. With the advantages of high sensitivity and simple operation, fluorescence biosensors will have great potential in the future and could provide portable methods for multiallergen real-time detection in complex food systems.
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Affiliation(s)
- Linglin Fu
- Food Safety Key Laboratory of Zhejiang Province, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, People's Republic of China
| | - Yifan Qian
- Food Safety Key Laboratory of Zhejiang Province, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, People's Republic of China
| | - Jinru Zhou
- Food Safety Key Laboratory of Zhejiang Province, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, People's Republic of China
| | - Lei Zheng
- School of Food Science and Engineering, Hefei University of Technology, Hefei, People's Republic of China
| | - Yanbo Wang
- Food Safety Key Laboratory of Zhejiang Province, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, People's Republic of China
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Chen Q, Gao R, Jia L. Enhancement of the peroxidase-like activity of aptamers modified gold nanoclusters by bacteria for colorimetric detection of Salmonella typhimurium. Talanta 2020; 221:121476. [PMID: 33076089 DOI: 10.1016/j.talanta.2020.121476] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Revised: 07/24/2020] [Accepted: 07/27/2020] [Indexed: 12/28/2022]
Abstract
A colorimetric aptasensor was developed for selective and sensitive detection of Salmonella typhimurium (S. typhimurium) based on the enhancement of bacteria for the peroxidase-like activity of dual aptamers modified bovine serum albumin stabilized-gold nanoclusters (aptamers@BSA-AuNCs). Micro-sized bacteria was found to be able to capture aptamers@BSA-AuNCs and 3,3',5,5'-tetramethylbenzidine (TMB), thus promoting the proximity of aptamers@BSA-AuNCs to TMB and greatly increasing the local concentrations of the enzyme-mimetic nanoparticles and their substrate. As a result, addition of bacteria promoted the formation of blue products in the catalytic system, which was utilized to achieve bacteria detection by colorimetry. The parameters influencing the colorimetric aptasensor were optimized by an orthogonal test. Under the selected conditions, the aptasensor exhibited a wide linear response to S. typhimurium in the concentration range of 101-106 cfu mL-1 with a detection limit as low as 1 cfu mL-1. The feasibility of the aptasensor was verified by successful detection of S. typhimurium in egg samples with recoveries in the range of 92.4%-110%.
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Affiliation(s)
- Qingmei Chen
- Ministry of Education Key Laboratory of Laser Life Science & Guangdong Provincial Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, 510631, China
| | - Ran Gao
- Ministry of Education Key Laboratory of Laser Life Science & Guangdong Provincial Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, 510631, China
| | - Li Jia
- Ministry of Education Key Laboratory of Laser Life Science & Guangdong Provincial Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, 510631, China.
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Schmitz FRW, Valério A, de Oliveira D, Hotza D. An overview and future prospects on aptamers for food safety. Appl Microbiol Biotechnol 2020; 104:6929-6939. [PMID: 32588103 PMCID: PMC7315907 DOI: 10.1007/s00253-020-10747-0] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 06/10/2020] [Accepted: 06/16/2020] [Indexed: 02/07/2023]
Abstract
Introduction Many bacteria are responsible for infections in humans and plants, being found in vegetables, water, and medical devices. Most bacterial detection methods are time-consuming and take days to give the result. Aptamers are a promising alternative for a quick and reliable measurement technique to detect bacteria present in food products. Selected aptamers are DNA or RNA oligonucleotides that can bind with bacteria or other molecules with affinity and specificity for the target cells by the SELEX or cell-SELEX technique. This method is based on some rounds to remove the non-ligand oligonucleotides, leaving the aptamers specific to bind to the selected bacteria. Compared with conventional methodologies, the detection approach using aptamers is a rapid, low-cost form of analysis. Objective This review summarizes obtention methods and applications of aptamers in the food industry and biotechnology. Besides, different techniques with aptamers are presented, which enable more effective target detection. Conclusion Applications of aptamers as biosensors, or the association of aptamers with nanomaterials, may be employed in analyses by colorimetric, fluorescence, or electrical devices. Additionally, more efficient ways of sample preparation are presented, which can support food safety to provide human health, with a low-cost method for contaminant detection.Key points • Aptamers are promising for detecting contaminants outbreaks. • Studies are needed to identify aptamers for different targets. |
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Affiliation(s)
- Fernanda Raquel Wust Schmitz
- Department of Chemical Engineering and Food Engineering (EQA), Federal University of Santa Catarina (UFSC), Florianópolis, SC, 88040-900, Brazil
| | - Alexsandra Valério
- Department of Chemical Engineering and Food Engineering (EQA), Federal University of Santa Catarina (UFSC), Florianópolis, SC, 88040-900, Brazil
| | - Débora de Oliveira
- Department of Chemical Engineering and Food Engineering (EQA), Federal University of Santa Catarina (UFSC), Florianópolis, SC, 88040-900, Brazil.
| | - Dachamir Hotza
- Department of Chemical Engineering and Food Engineering (EQA), Federal University of Santa Catarina (UFSC), Florianópolis, SC, 88040-900, Brazil
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22
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He Q, Luo H, Chen L, Dong J, Chen K, Ning Y. Nanographite‐based fluorescent biosensor for detecting microRNA using duplex‐specific nuclease‐assisted recycling. LUMINESCENCE 2020; 35:347-354. [DOI: 10.1002/bio.3733] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Revised: 10/16/2019] [Accepted: 10/18/2019] [Indexed: 11/12/2022]
Affiliation(s)
- Qizhi He
- Department of Human Anatomy, Histology and Embryology, Institute of NeuroscienceChangsha Medical University Changsha Hunan China
| | - Huaiqing Luo
- Department of Human Anatomy, Histology and Embryology, Institute of NeuroscienceChangsha Medical University Changsha Hunan China
| | - Lingli Chen
- Department of MicrobiologyThe Medicine School of Hunan University of Chinese Medicine Changsha Hunan China
| | - Jun Dong
- Department of Human Anatomy, Histology and Embryology, Institute of NeuroscienceChangsha Medical University Changsha Hunan China
| | - Keke Chen
- Department of Human Anatomy, Histology and Embryology, Institute of NeuroscienceChangsha Medical University Changsha Hunan China
| | - Yi Ning
- Department of MicrobiologyThe Medicine School of Hunan University of Chinese Medicine Changsha Hunan China
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Feng S, Lv J, Pei F, Lv X, Wu Y, Hao Q, Zhang Y, Tong Z, Lei W. Fluorescent MoS 2 QDs based on IFE for turn-off determination of FOX-7 in real water samples. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 231:118131. [PMID: 32062514 DOI: 10.1016/j.saa.2020.118131] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 01/29/2020] [Accepted: 02/03/2020] [Indexed: 06/10/2023]
Abstract
A novel method for turn-off sensing 1,1-diamino-2,2-dinitroethylene (FOX-7) in aqueous medium was first proposed based on the inner filter effect (IFE) of FOX-7 on the fluorescence of molybdenum disulfide quantum dots (MoS2 QDs). Water-soluble MoS2 QDs as the fluorophore were prepared by the simple hydrothermal method. The morphology, structure, composition and optical properties of the prepared MoS2 QDs were characterized by Transmission electron microscopy (TEM), Fourier transform infrared (FT-IR), X-ray photoelectron spectroscopy (XPS), UV-vis absorption and photoluminescence spectra. The results showed that the MoS2 QDs had good water dispersibility and emitted strong photoluminescence with a particle size of 2 nm. Under the optimal experimental conditions, the fluorescence signal of MoS2 QDs was quenched in the concentrations range of FOX-7 (0.5-100 μM) and the limit of detection (LOD) of the sensor was 0.19 μM. The method had been applied to analyze the real water samples with good selectivity and stability. Moreover, the quenching mechanism was studied systematically by the Fourier transform infrared (FT-IR), UV-vis absorption spectra, fluorescence lifetime, and Stern-Volmer equation, which had been proved to be static quenching. The fluorescence quenching mechanism is mainly IFE and electron transfer.
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Affiliation(s)
- Shasha Feng
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Jingjing Lv
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Fubin Pei
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Xuchu Lv
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Yi Wu
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Qingli Hao
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Yuehua Zhang
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China
| | - Zhaoyang Tong
- State Key Laboratory of NBC Protection for Civilian, Beijing 102205, China.
| | - Wu Lei
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.
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Electrochemical quantification of Ag 2S quantum dots: evaluation of different surface coating ligands for bacteria determination. Mikrochim Acta 2020; 187:169. [PMID: 32060641 DOI: 10.1007/s00604-020-4140-z] [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: 09/29/2019] [Accepted: 01/24/2020] [Indexed: 01/04/2023]
Abstract
In this work, novel silver sulphide quantum dots (Ag2S QD) are electrochemically quantified for the first time. The method is based on the electrochemical reduction of Ag+ to Ag0 at -0.3 V on screen-printed carbon electrodes (SPCEs), followed by anodic stripping voltammetric oxidation that gives a peak of currents at +0.06 V which represents the analytical signal. The optimized methodology allows the quantification of water-stabilized Ag2S QD in the range of approximately 2 × 109-2 × 1012 QD·mL-1 with a good reproducibility (RSD: 5%). Moreover, as proof-of-concept of relevant biosensing application, Ag2S QD are evaluated as tags for Escherichia coli (E. coli) bacteria determination. Bacteria tagged with QD are separated by centrifugation from the sample solution and placed on the SPCE surface for quantitative analysis. The effect of two different Ag2S QD surface coating/stabilizing agents on both the voltammetric response and the bacteria sensing is also evaluated. 3-mercaptopropionic acid (3-MPA) is studied as model of short length coating ligand with no affinity for the bacteria, while boronic acid (BA) is evaluated as longer length ligand with chemical affinity for the polysaccharides present in the peptidoglycan layer on the bacteria cells surface. The biosensing system allows to detect bacteria in the range 10-1-103 bacteria·mL-1 with a limit of detection as low as 1 bacteria·mL-1. This methodology is a promising proof-of-concept alternative to traditional laboratory-based tests, with good sensitivity and short time and low cost of analysis. Graphical abstractNovel silver sulphide quantum dots (Ag2S QD) are electrochemically quantified for the first time. Moreover, Ag2S QD are evaluated as tags for Escherichia coli bacteria determination. The effect of two different QD surface coating ligands is also evaluated.
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25
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Detection of pathogenic bacteria via nanomaterials-modified aptasensors. Biosens Bioelectron 2019; 150:111933. [PMID: 31818764 DOI: 10.1016/j.bios.2019.111933] [Citation(s) in RCA: 85] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 11/13/2019] [Accepted: 11/26/2019] [Indexed: 01/17/2023]
Abstract
Detection and identification of special cells via aptamer-based nano-conjugates sensors have been revolutionized over the past few years. These sensing platforms rely on selecting aptamers using systematic evolution of ligands by exponential enrichment (SELEX) in vitro, which allows for sensitive detection of cells. Integration of the aptamer-based sensors (aptasensors) with nanomaterials offers enhanced specificity and sensitivity, which in turn, offers great promise for numerous applications, spanning from bioanalysis to biomedical applications. Accordingly, the demand for using aptamer-conjugated nanomaterials for various applications has progressively increased over the past years. In light of this, this Review seeks to highlight the recent advances in the development of aptamer-conjugated nanomaterials and their utilization for the detection of various pathogens involved in infectious diseases and food contamination.
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26
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Ultrasensitive immunoassay of Staphylococcus aureus based on colorimetric and fluorescent responses of 4-chloro-7-nitrobenzo-2-oxa-1,3-diazole to l-cysteine. Talanta 2019; 202:244-250. [DOI: 10.1016/j.talanta.2019.04.076] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Revised: 04/24/2019] [Accepted: 04/28/2019] [Indexed: 11/22/2022]
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27
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A ratiometric fluorescent nanoprobe consisting of ssDNA-templated silver nanoclusters for detection of histidine/cysteine, and the construction of combinatorial logic circuits. Mikrochim Acta 2019; 186:648. [DOI: 10.1007/s00604-019-3749-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Accepted: 08/10/2019] [Indexed: 02/06/2023]
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28
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Ren J, Liang G, Man Y, Li A, Jin X, Liu Q, Pan L. Aptamer-based fluorometric determination of Salmonella Typhimurium using Fe3O4 magnetic separation and CdTe quantum dots. PLoS One 2019; 14:e0218325. [PMID: 31216306 PMCID: PMC6584018 DOI: 10.1371/journal.pone.0218325] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Accepted: 05/30/2019] [Indexed: 01/15/2023] Open
Abstract
Based on the high sensitivity and stable fluorescence of CdTe quantum dots (QDs) in conjunction with a specific DNA aptamer, the authors describe an aptamer-based fluorescence assay for the determination of Salmonella Typhimurium. The fluorescence detection and quantification of S. Typhimurium is based on a magnetic separation system, a combination of aptamer-coated Fe3O4 magnetic particles (Apt-MNPs) and QD-labeled ssDNA2 (complementary strand of the aptamer). Apt-MNPs are employed for the specific capture of S. Typhimurium. CdTe QD-labeled ssDNA2 was used as a signaling probe. Simply, the as-prepared CdTe QD-labeled ssDNA2 was first incubated with the Apt-MNPs to form the aptamer-ssDNA2 duplex. After the addition of S. Typhimurium, they could specifically bind the DNA aptamer, leading to cleavage of the aptamer-ssDNA2 duplex, accompanied by the release of CdTe QD-labeled DNA. Thus, an increased fluorescence signal can be achieved after magnetic removal of the Apt-MNPs. The fluorescence of CdTe QDs (λexc/em = 327/612 nm) increases linearly in the concentration range of 10 to 1010 cfu•mL-1, and the limit of detection is determined to be 1 cfu•mL-1. The detection process can be performed within 2 h and is successfully applied to the analysis of spiked food samples with good recoveries from 90% to 105%.
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Affiliation(s)
- Junan Ren
- Beijing Research Center for Agricultural Standards and Testing, Beijing Academy of Agriculture and Forestry Sciences, Beijjing, PR China
- Risk Assessment Lab for Agro-products (Beijing), Ministry of Agriculture, Beijing, PR China
- Beijing Municipal Key Laboratory of Agriculture Environment Monitoring, Beijing, PR China
| | - Gang Liang
- Beijing Research Center for Agricultural Standards and Testing, Beijing Academy of Agriculture and Forestry Sciences, Beijjing, PR China
- Risk Assessment Lab for Agro-products (Beijing), Ministry of Agriculture, Beijing, PR China
- Beijing Municipal Key Laboratory of Agriculture Environment Monitoring, Beijing, PR China
| | - Yan Man
- Beijing Research Center for Agricultural Standards and Testing, Beijing Academy of Agriculture and Forestry Sciences, Beijjing, PR China
- Risk Assessment Lab for Agro-products (Beijing), Ministry of Agriculture, Beijing, PR China
- Beijing Municipal Key Laboratory of Agriculture Environment Monitoring, Beijing, PR China
| | - An Li
- Beijing Research Center for Agricultural Standards and Testing, Beijing Academy of Agriculture and Forestry Sciences, Beijjing, PR China
- Risk Assessment Lab for Agro-products (Beijing), Ministry of Agriculture, Beijing, PR China
- Beijing Municipal Key Laboratory of Agriculture Environment Monitoring, Beijing, PR China
| | - Xinxin Jin
- Beijing Research Center for Agricultural Standards and Testing, Beijing Academy of Agriculture and Forestry Sciences, Beijjing, PR China
- Risk Assessment Lab for Agro-products (Beijing), Ministry of Agriculture, Beijing, PR China
- Beijing Municipal Key Laboratory of Agriculture Environment Monitoring, Beijing, PR China
| | - Qingju Liu
- Beijing Research Center for Agricultural Standards and Testing, Beijing Academy of Agriculture and Forestry Sciences, Beijjing, PR China
- Risk Assessment Lab for Agro-products (Beijing), Ministry of Agriculture, Beijing, PR China
- Beijing Municipal Key Laboratory of Agriculture Environment Monitoring, Beijing, PR China
| | - Ligang Pan
- Beijing Research Center for Agricultural Standards and Testing, Beijing Academy of Agriculture and Forestry Sciences, Beijjing, PR China
- Risk Assessment Lab for Agro-products (Beijing), Ministry of Agriculture, Beijing, PR China
- Beijing Municipal Key Laboratory of Agriculture Environment Monitoring, Beijing, PR China
- * E-mail:
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29
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Tang J, Wang Z, Zhou J, Lu Q, Deng L. Enzyme-free hybridization chain reaction-based signal amplification strategy for the sensitive detection of Staphylococcus aureus. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 215:41-47. [PMID: 30818216 DOI: 10.1016/j.saa.2019.02.035] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Revised: 02/16/2019] [Accepted: 02/16/2019] [Indexed: 06/09/2023]
Abstract
In this study, based on hybridization chain reaction (HCR) amplification and graphene oxide (GO), we developed a facile enzyme-free signal amplification strategy for sensitive detection of Staphylococcus aureus (S. aureus). Two hairpin probes (HP1 and HP2) labeled by fluorophore 6-carboxyfluorescein (FAM) are designed. The HP1 and HP2 can not only trigger to the HCR but also form a long nicked double strand DNA (dsDNA) with the target (16S rRNA). In the absence of target (16 s RNA), the free FAM-labeled HP1 and HP2 are adsorbed by the GO via π-π stacking, the fluorescence signal is quenched. In the presence of target (16 s RNA), the HCR is triggered and dsDNA complexes are generated. As a result, the fluorescence signal can be strongly amplified by the synergistic effect of FAM and the dsDNA dye SYBR Green I. Based on this mechanism, a fluorescence method is designed for the detection of 16S rRNA of S. aureus. Under the optimal conditions, it has low detection limit (50 pM) and a linear response in a concentration range of 50 pM to 100 nM for 16S rRNA. Furthermore, this method has also been successfully applied to the detection of S. aureus in milk sample with the detection limit of 4 × 102 CFU·mL-1.
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Affiliation(s)
- Jie Tang
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha 410081, Hunan, People's Republic of China
| | - Zefeng Wang
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha 410081, Hunan, People's Republic of China
| | - Jiaqi Zhou
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha 410081, Hunan, People's Republic of China
| | - Qiujun Lu
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha 410081, Hunan, People's Republic of China
| | - Le Deng
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha 410081, Hunan, People's Republic of China.
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Bhardwaj N, Bhardwaj SK, Bhatt D, Lim DK, Kim KH, Deep A. Optical detection of waterborne pathogens using nanomaterials. Trends Analyt Chem 2019. [DOI: 10.1016/j.trac.2019.02.019] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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31
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Fluorometric determination of mercury(II) via a graphene oxide-based assay using exonuclease III-assisted signal amplification and thymidine-Hg(II)-thymidine interaction. Mikrochim Acta 2019; 186:216. [PMID: 30838468 DOI: 10.1007/s00604-019-3332-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2018] [Accepted: 02/22/2019] [Indexed: 12/26/2022]
Abstract
A highly sensitive and selective fluorometric method is described for determination of mercury(II). It is based on (a) the use of graphene oxide (GO) acting as a quencher of the fluoresence of the carboxy-fluorescein (FAM), and (b) of Hg(II)-triggered cleavage of the newly formed nucleic acid sequences harbored blunt 3'-hydroxyl termini by exonuclease III (Exo III) that leads to signal amplification. Two DNA probes are used, viz. a capture probe (CP) and a help probe; HP) that is partially complementary. In the absence of Hg(II), the FAM-labeled hairpin (signal probe, SP) is adsorbed onto the surface of GO via π-stacking interactions. CP blocks the release of the HP for binding to SP. This results in quenching of the green fluorescence of the label. Upon addition of Hg(II), the linear structure of CP is converted to a hairpin structure due to the formation of thymidine-Hg(II)-thymidine duplexes. HP is released from the CP/HP hybrids, and this causes SP to be released from from GO and fluorescence to be recovered. The signal is strongly amplified by using Exo III-assisted targeting and recycling of HP. Hence, Hg(II) can be detected via the strong increase in fluorescence. The method has a linear response in the 0.1 to 30 nM Hg(II) concentration range and a 10 pM detection limit. It was applied to the determination of Hg(II) in three (spiked) Chinese medicines. Graphical abstract Schematic representation of fluorescence sensing strategy for Hg2+ by using graphene oxide as a quencher and exonuclease III-assisted signal amplification.
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32
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Choi JR, Yong KW, Choi JY, Cowie AC. Emerging Point-of-care Technologies for Food Safety Analysis. SENSORS (BASEL, SWITZERLAND) 2019; 19:E817. [PMID: 30781554 PMCID: PMC6412947 DOI: 10.3390/s19040817] [Citation(s) in RCA: 73] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 02/14/2019] [Accepted: 02/14/2019] [Indexed: 02/08/2023]
Abstract
Food safety issues have recently attracted public concern. The deleterious effects of compromised food safety on health have rendered food safety analysis an approach of paramount importance. While conventional techniques such as high-performance liquid chromatography and mass spectrometry have traditionally been utilized for the detection of food contaminants, they are relatively expensive, time-consuming and labor intensive, impeding their use for point-of-care (POC) applications. In addition, accessibility of these tests is limited in developing countries where food-related illnesses are prevalent. There is, therefore, an urgent need to develop simple and robust diagnostic POC devices. POC devices, including paper- and chip-based devices, are typically rapid, cost-effective and user-friendly, offering a tremendous potential for rapid food safety analysis at POC settings. Herein, we discuss the most recent advances in the development of emerging POC devices for food safety analysis. We first provide an overview of common food safety issues and the existing techniques for detecting food contaminants such as foodborne pathogens, chemicals, allergens, and toxins. The importance of rapid food safety analysis along with the beneficial use of miniaturized POC devices are subsequently reviewed. Finally, the existing challenges and future perspectives of developing the miniaturized POC devices for food safety monitoring are briefly discussed.
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Affiliation(s)
- Jane Ru Choi
- Department of Mechanical Engineering, University of British Columbia, 2054⁻6250 Applied Science Lane, Vancouver, BC V6T 1Z4, Canada.
- Centre for Blood Research, Life Sciences Centre, University of British Columbia, 2350 Health Sciences Mall, Vancouver, BC V6T 1Z3, Canada.
| | - Kar Wey Yong
- Department of Chemical & Petroleum Engineering, Schulich School of Engineering, University of Calgary, Calgary, AB T2N 1N4, Canada.
| | - Jean Yu Choi
- Faculty of Medicine, University of Dundee, Dow Street, Dundee DD1 5EH, UK.
| | - Alistair C Cowie
- Faculty of Medicine, University of Dundee, Dow Street, Dundee DD1 5EH, UK.
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Wen LX, Lv JJ, Chen L, Li SB, Mou XJ, Xu Y. A fluorescent probe composed of quantum dot labeled aptamer and graphene oxide for the determination of the lipopolysaccharide endotoxin. Mikrochim Acta 2019; 186:122. [PMID: 30666423 DOI: 10.1007/s00604-018-3218-3] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2018] [Accepted: 12/28/2018] [Indexed: 01/28/2023]
Abstract
Endotoxins are complex lipopolysaccharides (LPS) and key components of the outer cell membrane of Gram-negative bacteria. The authors report on a fluorescent aptamer-based probe for the determination of LPS of Gram-negative bacteria. An aptamer against LPS was fluorescently labeled with CdSe/ZnS quantum dots. Its emission is quenched on addition of graphene oxide (GO). On addition of LPS, the aptamer binds LPS and GO is released. This results in the recovery of fluorescence, typically measured at excitation/emission wavelengths of 495/543 nm. The probe responds to LPS in the 10-500 ng·mL-1 concentration range, and the detection limit is 8.7 ng·mL-1. It can be used for selective detection of LPS from different Gram-negative bacteria, in the presence of biological interferents. Graphical abstract Schematic presentation of a green fluorescent probe comprised of an aptamer labelled with CdSe/ZnS quantum dots and of graphene oxide. Lipopolysaccharides bind to the aptamer and release graphene oxide to result in fluorescence recovery, which is measured at an emission wavelength 543 nm.
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Affiliation(s)
- Lu-Xin Wen
- Key Disciplines Lab of Novel Micro-nano Devices and System Technology, Chongqing University, Chongqing, 400030, China
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400030, China
- National Center for International Research of Micro/Nano-System and New Material Technology, Chongqing University, Chongqing, 400030, China
| | - Jun-Jiang Lv
- Key Disciplines Lab of Novel Micro-nano Devices and System Technology, Chongqing University, Chongqing, 400030, China.
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400030, China.
- Collaborative Innovation Center for Brain Science, Chongqing University, Chongqing, 400030, People's Republic of China.
| | - Li Chen
- Key Disciplines Lab of Novel Micro-nano Devices and System Technology, Chongqing University, Chongqing, 400030, China
- National Center for International Research of Micro/Nano-System and New Material Technology, Chongqing University, Chongqing, 400030, China
| | - Shun-Bo Li
- Key Disciplines Lab of Novel Micro-nano Devices and System Technology, Chongqing University, Chongqing, 400030, China
- National Center for International Research of Micro/Nano-System and New Material Technology, Chongqing University, Chongqing, 400030, China
| | - Xiao-Jing Mou
- Key Disciplines Lab of Novel Micro-nano Devices and System Technology, Chongqing University, Chongqing, 400030, China
- National Center for International Research of Micro/Nano-System and New Material Technology, Chongqing University, Chongqing, 400030, China
| | - Yi Xu
- Key Disciplines Lab of Novel Micro-nano Devices and System Technology, Chongqing University, Chongqing, 400030, China.
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400030, China.
- National Center for International Research of Micro/Nano-System and New Material Technology, Chongqing University, Chongqing, 400030, China.
- Collaborative Innovation Center for Brain Science, Chongqing University, Chongqing, 400030, People's Republic of China.
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Sai-Anand G, Sivanesan A, Benzigar MR, Singh G, Gopalan AI, Baskar AV, Ilbeygi H, Ramadass K, Kambala V, Vinu A. Recent Progress on the Sensing of Pathogenic Bacteria Using Advanced Nanostructures. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2019. [DOI: 10.1246/bcsj.20180280] [Citation(s) in RCA: 92] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Gopalan Sai-Anand
- Global Innovative Center for Advanced Nanomaterials, Faculty of Built Environment and Engineering, The University of Newcastle, Callaghan 2308, New South Wales, Australia
- Future Industries Institute, Division of Information Technology, Engineering and Environment, University of South Australia, Mawson Lakes, South Australia 5095, Australia
| | - Arumugam Sivanesan
- Future Industries Institute, Division of Information Technology, Engineering and Environment, University of South Australia, Mawson Lakes, South Australia 5095, Australia
- Metrohm Australia, 56 Buffalo Road, Gladesville, NSW 2111, Australia
| | - Mercy R Benzigar
- Future Industries Institute, Division of Information Technology, Engineering and Environment, University of South Australia, Mawson Lakes, South Australia 5095, Australia
| | - Gurwinder Singh
- Global Innovative Center for Advanced Nanomaterials, Faculty of Built Environment and Engineering, The University of Newcastle, Callaghan 2308, New South Wales, Australia
- Future Industries Institute, Division of Information Technology, Engineering and Environment, University of South Australia, Mawson Lakes, South Australia 5095, Australia
| | - Anantha-Iyengar Gopalan
- Research Institute of Advanced Energy Technology, Kyungpook National University, Daegu 41566, Korea
| | - Arun Vijay Baskar
- Global Innovative Center for Advanced Nanomaterials, Faculty of Built Environment and Engineering, The University of Newcastle, Callaghan 2308, New South Wales, Australia
- Future Industries Institute, Division of Information Technology, Engineering and Environment, University of South Australia, Mawson Lakes, South Australia 5095, Australia
| | - Hamid Ilbeygi
- Future Industries Institute, Division of Information Technology, Engineering and Environment, University of South Australia, Mawson Lakes, South Australia 5095, Australia
| | - Kavitha Ramadass
- Global Innovative Center for Advanced Nanomaterials, Faculty of Built Environment and Engineering, The University of Newcastle, Callaghan 2308, New South Wales, Australia
- Future Industries Institute, Division of Information Technology, Engineering and Environment, University of South Australia, Mawson Lakes, South Australia 5095, Australia
| | - Venkata Kambala
- Hudson Marketing Pty Ltd, Level 2/131 Macquarie St, Sydney NSW 2000, Australia
| | - Ajayan Vinu
- Global Innovative Center for Advanced Nanomaterials, Faculty of Built Environment and Engineering, The University of Newcastle, Callaghan 2308, New South Wales, Australia
- Future Industries Institute, Division of Information Technology, Engineering and Environment, University of South Australia, Mawson Lakes, South Australia 5095, Australia
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Wang L, Wu A, Wei G. Graphene-based aptasensors: from molecule-interface interactions to sensor design and biomedical diagnostics. Analyst 2019. [PMID: 29528071 DOI: 10.1039/c8an00081f] [Citation(s) in RCA: 68] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Graphene-based nanomaterials have been widely utilized to fabricate various biosensors for environmental monitoring, food safety, and biomedical diagnostics. The combination of aptamers with graphene for creating biofunctional nanocomposites improved the sensitivity and selectivity of fabricated biosensors due to the unique molecular recognition and biocompatibility of aptamers. In this review, we highlight recent advances in the design, fabrication, and biomedical sensing application of graphene-based aptasensors within the last five years (2013-current). The typical studies on the biomedical fluorescence, colorimetric, electrochemical, electrochemiluminescence, photoelectrochemical, electronic, and force-based sensing of DNA, proteins, enzymes, small molecules, ions, and others are demonstrated and discussed in detail. More attention is paid to a few key points such as the conjugation of aptamers with graphene materials, the fabrication strategies of sensor architectures, and the importance of aptamers on improving the sensing performances. It is expected that this work will provide preliminary and useful guidance for readers to understand the fabrication of graphene-based biosensors and the corresponding sensing mechanisms in one way, and in another way will be helpful to develop novel high performance aptasensors for biological analysis and detection.
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Affiliation(s)
- Li Wang
- Key Laboratory of Preparation and Application of Environmental Friendly Materials (Jilin Normal University), Ministry of Education, Changchun, 130103, P. R. China.
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36
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Aptamer-based assays and aptasensors for detection of pathogenic bacteria in food samples. Trends Analyt Chem 2018. [DOI: 10.1016/j.trac.2018.07.016] [Citation(s) in RCA: 136] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Duan N, Wu S, Dai S, Gu H, Hao L, Ye H, Wang Z. Advances in aptasensors for the detection of food contaminants. Analyst 2018; 141:3942-61. [PMID: 27265444 DOI: 10.1039/c6an00952b] [Citation(s) in RCA: 85] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Food safety is a global health objective, and foodborne diseases represent a major crisis in health. Techniques that are simple and suitable for fast screening to detect and identify pathogenic factors in the food chain are vital to ensure food safety. At present, a variety of analytical methods have been reported for the detection of pathogenic agents. Whereas the sensitivity of detection and quantification are still important challenges, we expect major advances from new assay formats and synthetic bio-recognition elements, such as aptamers. Owing to the specific folding capability of aptamers in the presence of an analyte, aptasensors have substantially and successfully been exploited for the detection of a wide range of small and large molecules (e.g., toxins, antibiotics, heavy metals, bacteria, viruses) at very low concentrations. Here, we review the use of aptasensors for the development of highly sensitive and affordable detection tools for food analysis.
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Affiliation(s)
- Nuo Duan
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China.
| | - Shijia Wu
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China.
| | - Shaoliang Dai
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China.
| | - Huajie Gu
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China.
| | - Liling Hao
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China.
| | - Hua Ye
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China.
| | - Zhouping Wang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China.
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38
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Wang L, Wang R, Wei H, Li Y. Selection of aptamers against pathogenic bacteria and their diagnostics application. World J Microbiol Biotechnol 2018; 34:149. [PMID: 30220026 DOI: 10.1007/s11274-018-2528-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Accepted: 08/31/2018] [Indexed: 10/28/2022]
Abstract
Aptamers are short nucleotide sequences which can specifically bind to a variety of targets with high affinity. They are identified and selected via systematic evolution of ligands by exponential enrichment (SELEX). Compared to antibodies, aptamers offer several advantages including easy labeling, high stability and lower cost. Those advantages make it possible to be a potential for use as a recognition probe to replace antibody in the diagnostic field. This article is intended to provide a comprehensive review, which is focused on systemizing recent advancements concerning SELEX procedures, with special emphasis on the key steps in SELEX procedures. The principles of various aptamer-based detections of pathogenic bacteria and their application are discussed in detail, including colorimetric detection, fluorescence detection, electrochemical detection, lateral flow strip test, mass sensitive detection and PCR-based aptasensor. By discussing recent research and future trends based on many excellent publications and reviews, we attempt to give the readers a comprehensive view in the field of aptamer selection against pathogenic bacteria and their diagnostics application. Authors hope that this review will promote lively and valuable discussions in order to generate new ideas and approaches towards the development of aptamer-based methods for application in pathogenic bacteria diagnosis.
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Affiliation(s)
- Lijun Wang
- School of Food and Bioengineering, Xihua University, Chengdu, 610039, China.,Department of Biological & Agricultural Engineering, University of Arkansas, Fayetteville, AR, 72701, USA
| | - Ronghui Wang
- Department of Biological & Agricultural Engineering, University of Arkansas, Fayetteville, AR, 72701, USA
| | - Hua Wei
- Jiangxi-OAI Joint Research Institute, Nanchang University, Nanchang, 330047, China
| | - Yanbin Li
- Department of Biological & Agricultural Engineering, University of Arkansas, Fayetteville, AR, 72701, USA. .,Center of Excellence for Poultry Science, University of Arkansas, 203 Engineering Hall, Fayetteville, AR, 72701, USA.
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Srinivasan S, Ranganathan V, DeRosa MC, Murari BM. Label-free aptasensors based on fluorescent screening assays for the detection of Salmonella typhimurium. Anal Biochem 2018; 559:17-23. [PMID: 30081031 DOI: 10.1016/j.ab.2018.08.002] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Revised: 08/02/2018] [Accepted: 08/02/2018] [Indexed: 10/28/2022]
Abstract
We report two label-free fluorescent aptasensor methods for the detection of S. typhimurium. In the first method, we have used a ''turn off'' approach in which the aptamer is first intercalated with SYBR Green I (SG), leading to a greatly enhanced fluorescence signal. The addition of S. typhimurium (approximately 1530-96938 CFU/mL), which specifically binds with its aptamer and releases SG, leads to a linear decrease in fluorescence intensity. The lowest detection limit achieved with this approach was in the range of 733 CFU/mL. In the second method, a ''turn on'' approach was designed for S. typhimurium through the Förster resonance energy transfer (FRET) between Rhodamine B (RB) and gold nanoparticles (AuNPs). When the aptamer and AuNPs were mixed with RB, the fluorescence of RB was significantly quenched via FRET. The aptamer adsorbs to the AuNP surface to protect them from salt-induced aggregation, which leads to the fluorescence quenching of RB in presence of AuNPs. Upon the addition of S. typhimurium, S. typhimurium specifically binds with its aptamer and loses the capability to stabilize AuNPs. Thus, the salt easily induces the aggregation of AuNPs, resulting in the fluorescence recovery of the quenched RB. S. typhimurium concentrations ranging from 1530 to 96938 CFU/mL with the detection limit of 464 CFU/mL was achieved with this methodology. Given these data, some insights into the molecular interactions between the aptamer and the bacterial target are provided. These aptasensor methods also may be adapted for the detection of a wide variety of targets.
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Affiliation(s)
- Sathya Srinivasan
- Department of Biotechnology, School of Bioscience and Technology, VIT University, Vellore, 632 104, TN, India; Department of Chemistry, Carleton University, 1125 Colonel By Drive, Ottawa, ON K1S 5B6, Canada.
| | - Velu Ranganathan
- Department of Chemistry, Carleton University, 1125 Colonel By Drive, Ottawa, ON K1S 5B6, Canada.
| | - Maria C DeRosa
- Department of Chemistry, Carleton University, 1125 Colonel By Drive, Ottawa, ON K1S 5B6, Canada.
| | - Bhaskar Mohan Murari
- Department of Biotechnology, School of Bioscience and Technology, VIT University, Vellore, 632 104, TN, India; Department of Sensor and Biomedical Technology, School of Electronics Engineering, VIT University, Vellore, 632 104, TN, India.
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Rapid colorimetric lactoferrin-based sandwich immunoassay on cotton swabs for the detection of foodborne pathogenic bacteria. Talanta 2018; 185:275-280. [DOI: 10.1016/j.talanta.2018.03.072] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Revised: 03/22/2018] [Accepted: 03/24/2018] [Indexed: 11/24/2022]
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Habimana JDD, Ji J, Sun X. Minireview: Trends in Optical-Based Biosensors for Point-Of-Care Bacterial Pathogen Detection for Food Safety and Clinical Diagnostics. ANAL LETT 2018. [DOI: 10.1080/00032719.2018.1458104] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Jean de Dieu Habimana
- State Key Laboratory of Food Science and Technology, School of Food Science, National Engineering Research Center for Functional Foods, Synergetic Innovation Center of Food Safety, International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, Jiangsu, China
- Department of Food Science and Technology, School of Food Science and Technology, University of Rwanda, Kigali, Rwanda
| | - Jian Ji
- State Key Laboratory of Food Science and Technology, School of Food Science, National Engineering Research Center for Functional Foods, Synergetic Innovation Center of Food Safety, International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, Jiangsu, China
| | - Xiulan Sun
- State Key Laboratory of Food Science and Technology, School of Food Science, National Engineering Research Center for Functional Foods, Synergetic Innovation Center of Food Safety, International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, Jiangsu, China
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Leng X, Wang Y, Li R, Liu S, Yao J, Pei Q, Cui X, Tu Y, Tang D, Huang J. Circular exponential amplification of photoinduced electron transfer using hairpin probes, G-quadruplex DNAzyme and silver nanocluster-labeled DNA for ultrasensitive fluorometric determination of pathogenic bacteria. Mikrochim Acta 2018; 185:168. [PMID: 29594727 DOI: 10.1007/s00604-018-2698-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Accepted: 01/20/2018] [Indexed: 01/17/2023]
Abstract
The authors describe a fluorometric strategy for the detection of pathogenic bacteria with ultrasensitivity and high specificity. This strategy relies on the combination of target-modulated photoinduced electron transfer (PET) between G-quadruplex DNAzyme and DNA (labeled with silver nanoclusters) along with hairpin probe-based circular exponential amplification. The reaction system involves three hairpin probes (H1, H2 and H3). Probe H1 contains an aptamer against S. Typhimurium and the recognition sequence for nicking endonuclease. It is used to recognize S. Typhimurium and participates in polymerase-catalyzed target recycle amplification and secondary-target recycle amplification. Probe H2 contains an aptamer against hemin and is used to form the G-quadruplex DNAzyme in the presence of hemin and potassium ion. It acts as the electron acceptor and quenches the fluorescence of the labeled DNA. Fluorescence is best measured at excitation/emission wavelengths of 567/650 nm. Probe H3 contains the template sequence for the synthesis of AgNCs and the H2-annealing sequence. Both H2 and H3 are utilized to perform a strand displacement reaction and to achieve PET between G-quadruplex DNAzyme and DNA/AgNCs. To the best of our knowledge, this is the first example of a PET between G-quadruplex DNAzyme and DNA/AgNCs coupled with circular exponential amplification. The assay has an ultra-low detection limit 8 cfu·mL-1 of S. Typhimurium. The assay is rapid, accurate, inexpensive and simple. Hence, the strategy may represent a useful platform for ultrasensitive and highly specific detection of pathogenic bacteria as encountered in food analysis and clinical diagnosis. Graphical abstract The reaction system includes three hairpin probes (H1, H2 and H3), primer probe (P), Phi 29 DNA ploymerase (Phi 29) and nicking endonuclease Nt.AlwI (Nt.AlwI). Phi 29 and Nt.AlwI -assisted signal amplification leads to the recycling of target and produces numerous single stranded-DNAs (S). Strand displacement amplification leads to photoinduced electron transfer (PET) between G-quadruplex DNAzyme and DNA/AgNCs. HAP-based circular exponential amplification of PET results in an ultrasensitive fluorometric assay.
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Affiliation(s)
- Xueqi Leng
- College of Resources and Environment, University of Jinan, Jinan, 250022, People's Republic of China
| | - Yu Wang
- College of Biological Sciences and Technology, University of Jinan, Jinan, 250022, People's Republic of China
| | - Rongguo Li
- Jinan Maternity and Child Care Hospital, Jinan, 250022, People's Republic of China
| | - Su Liu
- College of Resources and Environment, University of Jinan, Jinan, 250022, People's Republic of China.
| | - Jianzhuang Yao
- College of Biological Sciences and Technology, University of Jinan, Jinan, 250022, People's Republic of China
| | - Qianqian Pei
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, College of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, People's Republic of China
| | - Xuejun Cui
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, College of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, People's Republic of China
| | - Yuqin Tu
- College of Resources and Environment, University of Jinan, Jinan, 250022, People's Republic of China
| | - Dan Tang
- College of Biological Sciences and Technology, University of Jinan, Jinan, 250022, People's Republic of China
| | - Jiadong Huang
- College of Biological Sciences and Technology, University of Jinan, Jinan, 250022, People's Republic of China.,Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, College of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, People's Republic of China
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43
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Ultrasensitive detection of aflatoxin B1 and its major metabolite aflatoxin M1 using aptasensors: A review. Trends Analyt Chem 2018. [DOI: 10.1016/j.trac.2017.12.009] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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44
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Sadeghi AS, Mohsenzadeh M, Abnous K, Taghdisi SM, Ramezani M. Development and characterization of DNA aptamers against florfenicol: Fabrication of a sensitive fluorescent aptasensor for specific detection of florfenicol in milk. Talanta 2018; 182:193-201. [PMID: 29501140 DOI: 10.1016/j.talanta.2018.01.083] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2017] [Revised: 01/25/2018] [Accepted: 01/29/2018] [Indexed: 01/05/2023]
Abstract
Specific ssDNA aptamers for the antibiotic florfenicol (FF) were developed from an enriched nucleotide library using magnetic beads-based SELEX (Systematic Evolution of Ligands by EXponential enrichment) technique with high-binding affinity. After 12 rounds of selection, thirty-six sequences were obtained that were then divided into five major families, according to the primary sequence similarity. Binding affinity analyses of three fluorescently tagged aptamers belonging to different families demonstrated that the dissociation constants (Kd) were in the low nanomolar range (Kd = 52.78-211.4 nmol L-1). Furthermore, to verify the potential application of the aptamers, a fluorescent aptasensor was fabricated for detecting the FF residue in raw milk samples based on the energy transfer between graphene oxide as the acceptor and fluorescently tagged FF-specific aptamer as the donor. Under optimal conditions, the aptasensor displayed a wide linear range from 5 to 1200 nmol L-1 and a detection limit of 5.75 nmol L-1 with excellent selectivity in milk. The recovery rate in the milk was between 101% ± 0.14% and 110% ± 2.8%, indicating high accuracy. This fluorescent aptasensor possessed considerable potential for rapid analysis of FF in raw milk because of its simplicity of detection. Moreover, the interaction between the aptamer and FF was studied using molecular modeling.
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Affiliation(s)
- Atefeh Sarafan Sadeghi
- Department of Food Hygiene and Aquaculture, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Mohammad Mohsenzadeh
- Department of Food Hygiene and Aquaculture, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, 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
| | - Mohammad Ramezani
- Pharmaceutical 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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45
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Mao B, Cheng L, Wang S, Zhou J, Deng L. Combat biofilm by bacteriostatic aptamer-functionalized graphene oxide. Biotechnol Appl Biochem 2018; 65:355-361. [PMID: 29357405 DOI: 10.1002/bab.1631] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Accepted: 12/06/2017] [Indexed: 11/07/2022]
Abstract
Biofilms are the main reason for a large number deaths and high health costs. Their better protection compared to planktonic form against conventional antibiotics leads to poor treatment efficiency. Nanoagent-targeted delivery is a promising avenue for disease therapeutic, but its application targeting biofilms has not been reported currently. The roles, if any, of aptamers acting as delivery carrier and targeting factor, the graphene oxide (GO), and GO modified with aptamers against biofilms were then systematically evaluated. Here, we successfully developed an aptamer-targeted GO strategy against biofilms. We investigated the efficacy of aptamer-GO conjugates by UV spectrophotometer, inverted microscopy, and atomic force microscopy; 93.5 ± 3.4% Salmonella typhimurium biofilms were inhibited and 84.6 ± 5.1% of biofilms were dispersed by a ST-3-GO conjugate. More importantly, this conjugate represented distinctively toxicity to S. typhimurium. Thus, this strategy significantly displays excellent antibiofilm properties and may serve as a long-term solution for biofilm control.
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Affiliation(s)
- Biyao Mao
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Sciences, Hunan Normal University, Changsha, Hunan, People's Republic of China
| | - Lijuan Cheng
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Sciences, Hunan Normal University, Changsha, Hunan, People's Republic of China.,Department of Biochemistry and Molecular Biology, Hunan University of Chinese Medicine, Changsha, Hunan, People's Republic of China
| | - Sheng Wang
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Sciences, Hunan Normal University, Changsha, Hunan, People's Republic of China
| | - Jiaqi Zhou
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Sciences, Hunan Normal University, Changsha, Hunan, People's Republic of China
| | - Le Deng
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Sciences, Hunan Normal University, Changsha, Hunan, People's Republic of China
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46
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Chinnappan R, AlAmer S, Eissa S, Rahamn AA, Abu Salah KM, Zourob M. Fluorometric graphene oxide-based detection of Salmonella enteritis using a truncated DNA aptamer. Mikrochim Acta 2017; 185:61. [PMID: 29594712 DOI: 10.1007/s00604-017-2601-9] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Accepted: 12/01/2017] [Indexed: 02/07/2023]
Abstract
The work describes a fluorescence-based study for mapping the highest affinity truncated aptamer from the full length sequence and its integration in a graphene oxide platform for the detection of Salmonella enteriditis. To identify the best truncated sequence, molecular beacons and a displacement assay design are applied. In the fluorescence displacement assay, the truncated aptamer was hybridized with fluorescein and quencher-labeled complementary sequences to form a fluorescence/quencher pair. In the presence of S. enteritidis, the aptamer dissociates from the complementary labeled oligonucleotides and thus, the fluorescein/quencher pair becomes physically separated. This leads to an increase in fluorescence intensity. One of the truncated aptamers identified has a 2-fold lower dissociation constant (3.2 nM) compared to its full length aptamer (6.3 nM). The truncated aptamer selected in this process was used to develop a fluorometric graphene oxide (GO) based assay. If fluorescein-labeled aptamer is adsorbed on GO via π stacking interaction, fluorescence is quenched. However, in the presence of target (S. enteriditis), the labeled aptamers is released from surface to form a stable complex with the bacteria and fluorescence is restored, depending on the quantity of bacteria being present. The resulting assay has an unsurpassed detection limit of 25 cfu·mL-1 in the best case. The cross reactivity to Salmonella typhimurium, Staphylococcus aureus and Escherichia coli is negligible. The assay was applied to analyze doped milk samples for and gave good recovery. Thus, we believe that the truncated aptamer/graphene oxide platform is a potential tool for the detection of S. Enteritidis. Graphical abstract Fluorescently labelled aptamer against Salmonella enteritidis was adsorbed on the surface of graphene oxide by π-stacking interaction. This results in quenching of the fluorescence of the label. Addition of Salmonella enteritidis restores fluorescence, and this effect is used for quantification of this food-borne pathogen.
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Affiliation(s)
- Raja Chinnappan
- Department of Chemistry, Alfaisal University, Al Zahrawi Street, Al Maather, Al Takhassusi Road, Riyadh, 11533, Saudi Arabia
| | - Saleh AlAmer
- Department of Chemistry, Alfaisal University, Al Zahrawi Street, Al Maather, Al Takhassusi Road, Riyadh, 11533, Saudi Arabia.,Strathclyde Institute of Pharmacy and Biomedical Science, University of Strathclyde, 161 Cathedral Street, Glasgow, G4 0RE, UK
| | - Shimaa Eissa
- Department of Chemistry, Alfaisal University, Al Zahrawi Street, Al Maather, Al Takhassusi Road, Riyadh, 11533, Saudi Arabia
| | - Anas Abdel Rahamn
- King Faisal Specialist Hospital and Research Center, Zahrawi Street, Al Maather, Riyadh, 12713, Saudi Arabia
| | - Khalid M Abu Salah
- Department of Nanomedicine, King Abdullah International Medical Research Center/King Saud bin Abdulaziz University for Health Sciences, King Abdulaziz Medical City, PO Box 3660, Riyadh, 11481, Saudi Arabia
| | - Mohammed Zourob
- Department of Chemistry, Alfaisal University, Al Zahrawi Street, Al Maather, Al Takhassusi Road, Riyadh, 11533, Saudi Arabia. .,King Faisal Specialist Hospital and Research Center, Zahrawi Street, Al Maather, Riyadh, 12713, Saudi Arabia.
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Wang S, Mao B, Wu M, Liang J, Deng L. Influence of aptamer-targeted antibiofilm agents for treatment of Pseudomonas aeruginosa biofilms. Antonie van Leeuwenhoek 2017; 111:199-208. [PMID: 29098517 DOI: 10.1007/s10482-017-0941-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Accepted: 09/05/2017] [Indexed: 10/18/2022]
Abstract
Biofilms are bacterial communities consisting of numerous extracellular polymeric substances. Infections caused by biofilm-forming bacteria are considered to be a major threat to health security and so novel approaches to control biofilm are of importance. Aptamers are single-strand nucleic acid molecules that have high selectivity to their targets. Single-walled carbon nanotubes (SWNTs) are common nanomaterials and have been shown to be toxic to bacterial biofilms. The aim of this study was to test whether an aptamer could play a role as targeting agents to enhance the efficiency of anti-biofilm agents. Hence, two complexes (aptamer-SWNTs and aptamer-ciprofloxacin-SWNTs) based on an aptamer which targets Pseudomonas aeruginosa and SWNTs were constructed. Both complexes were assessed against P. aeruginosa biofilms. In vitro tests demonstrated that the aptamer-SWNTs could inhibit ~36% more biofilm formation than SWNTs alone. Similarly, the aptamer-ciprofloxacin-SWNTs had a higher anti-biofilm efficiency than either component or simple mixtures of two components. Our study underscores the potential of aptamers as targeting agents for anti-biofilm compounds, as well as providing a new strategy to control biofilms.
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Affiliation(s)
- Sheng Wang
- State Key Laboratory of Developmental Biology of Freshwater, College of Life Science, Hunan Normal University, Changsha, 410081, Hunan, People's Republic of China.,Changsha Institute for Food and Drug Control, Changsha, 410081, Hunan, People's Republic of China
| | - Biyao Mao
- State Key Laboratory of Developmental Biology of Freshwater, College of Life Science, Hunan Normal University, Changsha, 410081, Hunan, People's Republic of China
| | - Mingxi Wu
- State Key Laboratory of Developmental Biology of Freshwater, College of Life Science, Hunan Normal University, Changsha, 410081, Hunan, People's Republic of China
| | - Jingjing Liang
- State Key Laboratory of Developmental Biology of Freshwater, College of Life Science, Hunan Normal University, Changsha, 410081, Hunan, People's Republic of China
| | - Le Deng
- State Key Laboratory of Developmental Biology of Freshwater, College of Life Science, Hunan Normal University, Changsha, 410081, Hunan, People's Republic of China.
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48
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Nano-Aptasensing in Mycotoxin Analysis: Recent Updates and Progress. Toxins (Basel) 2017; 9:toxins9110349. [PMID: 29143760 PMCID: PMC5705964 DOI: 10.3390/toxins9110349] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Revised: 10/24/2017] [Accepted: 10/24/2017] [Indexed: 01/23/2023] Open
Abstract
Recent years have witnessed an overwhelming integration of nanomaterials in the fabrication of biosensors. Nanomaterials have been incorporated with the objective to achieve better analytical figures of merit in terms of limit of detection, linear range, assays stability, low production cost, etc. Nanomaterials can act as immobilization support, signal amplifier, mediator and artificial enzyme label in the construction of aptasensors. We aim in this work to review the recent progress in mycotoxin analysis. This review emphasizes on the function of the different nanomaterials in aptasensors architecture. We subsequently relate their features to the analytical performance of the given aptasensor towards mycotoxins monitoring. In the same context, a critically analysis and level of success for each nano-aptasensing design will be discussed. Finally, current challenges in nano-aptasensing design for mycotoxin analysis will be highlighted.
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Homogeneous time-resolved FRET assay for the detection of Salmonella typhimurium using aptamer-modified NaYF4:Ce/Tb nanoparticles and a fluorescent DNA label. Mikrochim Acta 2017. [DOI: 10.1007/s00604-017-2399-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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Kim TH, Lee D, Choi JW. Live cell biosensing platforms using graphene-based hybrid nanomaterials. Biosens Bioelectron 2017; 94:485-499. [DOI: 10.1016/j.bios.2017.03.032] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Revised: 03/01/2017] [Accepted: 03/14/2017] [Indexed: 12/12/2022]
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