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Manceau M, Farre C, Lagarde F, Mathey R, Buhot A, Vidic J, Léguillier V, Hou Y, Chaix C. Investigation of the Affinity of Aptamers for Bacteria by Surface Plasmon Resonance Imaging Using Nanosomes. ACS APPLIED MATERIALS & INTERFACES 2024; 16:29645-29656. [PMID: 38809175 DOI: 10.1021/acsami.4c02355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2024]
Abstract
The cell-SELEX method enables efficient selection of aptamers that bind whole bacterial cells. However, after selection, it is difficult to determine their binding affinities using common screening methods because of the large size of the bacteria. Here we propose a simple surface plasmon resonance imaging method (SPRi) for aptamer characterization using bacterial membrane vesicles, called nanosomes, instead of whole cells. Nanosomes were obtained from membrane fragments after mechanical cell disruption in order to preserve the external surface epitopes of the bacterium used for their production. The study was conducted on Bacillus cereus (B. cereus), a Gram-positive bacterium commonly found in soil, rice, vegetables, and dairy products. Four aptamers and one negative control were initially grafted onto a biochip. The binding of B. cereus cells and nanosomes to immobilized aptamers was then compared. The use of nanosomes instead of cells provided a 30-fold amplification of the SPRi signal, thus allowing the selection of aptamers with higher affinities. Aptamer SP15 was found to be the most sensitive and selective for B. cereus ATCC14579 nanosomes. It was then truncated into three new sequences (SP15M, SP15S1, and SP15S2) to reduce its size while preserving the binding site. Fitting the results of the SPRi signal for B. cereus nanosomes showed a similar trend for SP15 and SP15M, and a slightly higher apparent association rate constant kon for SP15S2, which is the truncation with a high probability of a G-quadruplex structure. These observations were confirmed on nanosomes from B. cereus ATCC14579 grown in milk and from the clinical strain B. cereus J066. The developed method was validated using fluorescence microscopy on whole B. cereus cells and the SP15M aptamer labeled with a rhodamine. This study showed that nanosomes can successfully mimic the bacterial membrane with great potential for facilitating the screening of specific ligands for bacteria.
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Affiliation(s)
- Mathilde Manceau
- Université Claude Bernard Lyon 1, CNRS, ISA, UMR5280, 69100 Villeurbanne, France
| | - Carole Farre
- Université Claude Bernard Lyon 1, CNRS, ISA, UMR5280, 69100 Villeurbanne, France
| | - Florence Lagarde
- Université Claude Bernard Lyon 1, CNRS, ISA, UMR5280, 69100 Villeurbanne, France
| | - Raphaël Mathey
- Université Grenoble Alpes, CEA, CNRS, Grenoble INP, IRIG, SyMMES, 38000 Grenoble, France
| | - Arnaud Buhot
- Université Grenoble Alpes, CEA, CNRS, Grenoble INP, IRIG, SyMMES, 38000 Grenoble, France
| | - Jasmina Vidic
- Université Paris-Saclay, INRAE, AgroParisTech, UMR 1319, Micalis Institute, 78350 Jouy-en-Josas, France
| | - Vincent Léguillier
- Université Paris-Saclay, INRAE, AgroParisTech, UMR 1319, Micalis Institute, 78350 Jouy-en-Josas, France
| | - Yanxia Hou
- Université Grenoble Alpes, CEA, CNRS, Grenoble INP, IRIG, SyMMES, 38000 Grenoble, France
| | - Carole Chaix
- Université Claude Bernard Lyon 1, CNRS, ISA, UMR5280, 69100 Villeurbanne, France
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2
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Guo X. Research progress on the detection of foodborne pathogens based on aptamer recognition. Mikrochim Acta 2024; 191:318. [PMID: 38727855 DOI: 10.1007/s00604-024-06375-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Accepted: 04/20/2024] [Indexed: 05/15/2024]
Abstract
Foodborne diseases caused by bacterial contamination are a serious threat to food safety and human health. The classical plate culture method has the problems of long detection cycle, low sensitivity and specificity, and complicated operation, which cannot meet the growing demand for rapid quantitative detection of pathogenic bacteria. The frequent outbreak of foodborne diseases has put forward higher requirements for rapid and simple detection technology of foodborne pathogens. Aptamer is a kind of oligonucleotide fragment that can recognize targets with the advantages of high affinity and good specificity. The target can be range from proteins, small molecules, cells bacteria, and even viruses. Herein, the latest advances in sensitive and rapid detection of foodborne pathogens based on aptamer recognition was reviewed. Special attention has been paid to the obtained sequences of aptamers to various foodborne pathogens, the optimization of sequences, and the mechanism of aptamer recognition. Then, the research progress of biosensors for the detection of pathogenic bacteria based on aptamer recognition were summarized. Some challenges and prospects for the detection of foodborne pathogens based on aptamer recognition were prospected. In summary, with the further deepening of aptamer research and improvement of detection technology, aptamer-based recognition can meet the needs of rapid, sensitive, and accurate detection in practical applications.
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Affiliation(s)
- Xianglin Guo
- School of Food Science and Technology, Hunan Agricultural University, Changsha, 410128, Hunan, China.
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Léguillier V, Heddi B, Vidic J. Recent Advances in Aptamer-Based Biosensors for Bacterial Detection. BIOSENSORS 2024; 14:210. [PMID: 38785684 PMCID: PMC11117931 DOI: 10.3390/bios14050210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Revised: 04/09/2024] [Accepted: 04/19/2024] [Indexed: 05/25/2024]
Abstract
The rapid and sensitive detection of pathogenic bacteria is becoming increasingly important for the timely prevention of contamination and the treatment of infections. Biosensors based on nucleic acid aptamers, integrated with optical, electrochemical, and mass-sensitive analytical techniques, have garnered intense interest because of their versatility, cost-efficiency, and ability to exhibit high affinity and specificity in binding bacterial biomarkers, toxins, and whole cells. This review highlights the development of aptamers, their structural characterization, and the chemical modifications enabling optimized recognition properties and enhanced stability in complex biological matrices. Furthermore, recent examples of aptasensors for the detection of bacterial cells, biomarkers, and toxins are discussed. Finally, we explore the barriers to and discuss perspectives on the application of aptamer-based bacterial detection.
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Affiliation(s)
- Vincent Léguillier
- INRAE, AgroParisTech, Micalis Institut, Université Paris-Saclay, UMR 1319, 78350 Jouy-en-Josas, France;
- ENS Paris-Saclay, Laboratoire de Biologie et Pharmacologie Appliquée (LBPA), UMR8113 CNRS, 91190 Gif-sur-Yvette, France
| | - Brahim Heddi
- ENS Paris-Saclay, Laboratoire de Biologie et Pharmacologie Appliquée (LBPA), UMR8113 CNRS, 91190 Gif-sur-Yvette, France
| | - Jasmina Vidic
- INRAE, AgroParisTech, Micalis Institut, Université Paris-Saclay, UMR 1319, 78350 Jouy-en-Josas, France;
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Uğurlu Ö, Man E, Gök O, Ülker G, Soytürk H, Özyurt C, Evran S. A review of aptamer-conjugated nanomaterials for analytical sample preparation: Classification according to the utilized nanomaterials. Anal Chim Acta 2024; 1287:342001. [PMID: 38182359 DOI: 10.1016/j.aca.2023.342001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 11/01/2023] [Accepted: 11/03/2023] [Indexed: 01/07/2024]
Abstract
BACKGROUND Sample extraction before detection is a critical step in analysis. Since targets of interest are often found in complex matrices, the sample can not be directly introduced to the analytical instrument. Nanomaterials with unique physical-chemical properties are excellent supports for use in sorbent-based extraction. However, they lack selectivity and thus need to be functionalized with target-capturing molecules. Antibodies and molecularly imprinted polymers (MIPs) can be used for this purpose, but they have some problems that limit their practical applications. Hence, functionalization of nanomaterials for selectivity remains a problem. RESULTS Nucleic acid aptamers are affinity reagents that can provide superiority to antibodies since they can be selected in vitro and at a lower cost. Moreover, aptamers can be chemically synthesized and easily modified with different functional groups. Hence, aptamers are good candidates to impart selectivity to the nanomaterials. Recent studies focus on the integration of aptamers with magnetic nanoparticles, carbon-based nanomaterials, metal-organic frameworks, gold nanoparticles, gold nanorods, silica nanomaterials, and nanofibers. The unique properties of nanomaterials and aptamers make the aptamer-conjugated nanomaterials attractive for use in sample preparation. Aptamer-functionalized nanomaterials have been successfully used for selective extraction of proteins, small molecules, and cells from different types of complex samples such as serum, urine, and milk. In particular, magnetic nanoparticles have a wider use due to the rapid extraction of the sample under magnetic field. SIGNIFICANCE In this review, we aim to emphasize how beneficial features of nanomaterials and aptamers could be combined for extraction or enrichment of the analytes from complex samples. We aim to highlight that the benefits are twofold in terms of selectivity and efficiency when employing nanomaterials and aptamers together as a single platform.
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Affiliation(s)
- Özge Uğurlu
- Department of Medical Services and Techniques, Hatay Vocational School of Health Services, Hatay Mustafa Kemal University, Tayfur Sökmen Campus, 31060, Alahan-Antakya, Hatay, Turkey; Department of Biochemistry, Faculty of Science, Ege University, 35100, İzmir, Turkey
| | - Ezgi Man
- Department of Biochemistry, Faculty of Science, Ege University, 35100, İzmir, Turkey; EGE SCIENCE PRO Scientific Research Inc., Ege University, IdeEGE Technology Development Zone, 35100, İzmir, Turkey
| | - Oğuz Gök
- Department of Biochemistry, Faculty of Science, Ege University, 35100, İzmir, Turkey
| | - Gözde Ülker
- Department of Biochemistry, Faculty of Science, Ege University, 35100, İzmir, Turkey
| | - Hakan Soytürk
- Department of Biochemistry, Faculty of Science, Ege University, 35100, İzmir, Turkey
| | - Canan Özyurt
- Department of Chemistry and Chemical Processing Technologies, Lapseki Vocational School, Çanakkale Onsekiz Mart University, Çanakkale, Turkey
| | - Serap Evran
- Department of Biochemistry, Faculty of Science, Ege University, 35100, İzmir, Turkey.
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Rahimizadeh K, Zahra QUA, Chen S, Le BT, Ullah I, Veedu RN. Nanoparticles-assisted aptamer biosensing for the detection of environmental pathogens. ENVIRONMENTAL RESEARCH 2023; 238:117123. [PMID: 37717803 DOI: 10.1016/j.envres.2023.117123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 09/08/2023] [Accepted: 09/10/2023] [Indexed: 09/19/2023]
Abstract
Given the importance of public health, it is crucial to develop quick, targeted, highly sensitive, and accurate technologies to monitor pathogenic microbes in response to the growing concerns of food and environmental safety. Although conventional approaches for microbiological detection are available, they are laborious, and often skill demanding. Therefore, such approaches are incompetent in the on-site or high-throughput assessment of pathogenic microbes. Numerous efforts have been made to develop biosensors that use nucleic acid aptamer as the biorecognition element, which would avoid the abovementioned limitations. Incorporating nanomaterials (NMs) into aptamer-based biosensors (aptasensors) improves their sensitivity and specificity, opening exciting possibilities for various applications, such as bioanalysis of food and environmental samples. Over the last decade, nanomaterial-conjugated aptasensors have seen a steadily rising demand. To this end, the main goal of this study is to demonstrate the novelty in the design of nanomaterial-conjugated aptasensors and how they can be used to detect different pathogenic microbes in water and food. The intent of this paper is to evaluate the cutting-edge techniques that have appeared in nano-aptasensors throughout the past few years, such as manufacturing procedures, analytical credibility, and sensing mechanisms. Additionally, the fundamental performance parameters of aptasensing techniques (such as detection limits, and sensing ranges response) were also used to evaluate their practical applicability. Finally, it is anticipated that this study will inspire innovative ideas and techniques for the construction and use of aptasensors for monitoring pathogenic microorganisms in food, drinks, recreational water, and wastewater.
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Affiliation(s)
- Kamal Rahimizadeh
- Centre for Molecular Medicine and Innovative Therapeutics, Health Futures Institute, Murdoch University, Perth, WA 6150, Australia; Perron Institute for Neurological and Translational Science, Perth, WA 6009, Australia.
| | - Qurat Ul Ain Zahra
- Centre for Molecular Medicine and Innovative Therapeutics, Health Futures Institute, Murdoch University, Perth, WA 6150, Australia.
| | - Suxiang Chen
- Centre for Molecular Medicine and Innovative Therapeutics, Health Futures Institute, Murdoch University, Perth, WA 6150, Australia; Perron Institute for Neurological and Translational Science, Perth, WA 6009, Australia.
| | - Bao T Le
- Centre for Molecular Medicine and Innovative Therapeutics, Health Futures Institute, Murdoch University, Perth, WA 6150, Australia; Perron Institute for Neurological and Translational Science, Perth, WA 6009, Australia.
| | - Ismat Ullah
- State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, Hubei Province, 430074, PR China.
| | - Rakesh N Veedu
- Centre for Molecular Medicine and Innovative Therapeutics, Health Futures Institute, Murdoch University, Perth, WA 6150, Australia; Perron Institute for Neurological and Translational Science, Perth, WA 6009, Australia.
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Zheng L, Jin W, Xiong K, Zhen H, Li M, Hu Y. Nanomaterial-based biosensors for the detection of foodborne bacteria: a review. Analyst 2023; 148:5790-5804. [PMID: 37855707 DOI: 10.1039/d3an01554h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2023]
Abstract
Ensuring food safety is a critical concern for the development and well-being of humanity, as foodborne illnesses caused by foodborne bacteria have increasingly become a major public health concern worldwide. Traditional food safety monitoring systems are expensive and time-consuming, relying heavily on specialized equipment and operations. Therefore, there is an urgent need to develop low-cost, user-friendly and highly sensitive biosensors for detecting foodborne bacteria. In recent years, the combination of nanomaterials with optical biosensors has provided a prospective future platform for the detection of foodborne bacteria. By harnessing the unique properties of nanomaterials, such as their high surface area-to-volume ratio and exceptional sensitivity, in tandem with the precision of optical biosensing techniques, a new prospect has opened up for the rapid and accurate identification of potential bacterial contaminants in food. This review focuses on recent advances and new trends of nanomaterial-based biosensors for the detection of foodborne pathogens, which mainly include noble metal nanoparticles (NMPs), metal organic frameworks (MOFs), graphene nanomaterials, quantum dot (QD) nanomaterials, upconversion fluorescent nanomaterials (UCNPs) and carbon dots (CDs). Additionally, we summarized the research progress of color indicators, nanozymes, natural enzyme vectors and fluorescent dye biosensors, focusing on the advantages and disadvantages of nanomaterial-based biosensors and their development prospects. This review provides an outlook on future technological directions and potential applications to help identify the most promising areas of development in this field.
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Affiliation(s)
- Lingyan Zheng
- Beijing Engineering and Technology Research Centre of Food Additives, Beijing Technology & Business University (BTBU), Beijing, 100048, China.
- Beijing Laboratory for Food Quality and Safety, Beijing Technology & Business University (BTBU), Beijing, 100048, China
- Beijing Innovation Centre for Food Nutrition and Human Health, Beijing Technology & Business University (BTBU), Beijing, 100048, China
| | - Wen Jin
- Beijing Engineering and Technology Research Centre of Food Additives, Beijing Technology & Business University (BTBU), Beijing, 100048, China.
- Beijing Laboratory for Food Quality and Safety, Beijing Technology & Business University (BTBU), Beijing, 100048, China
- Beijing Innovation Centre for Food Nutrition and Human Health, Beijing Technology & Business University (BTBU), Beijing, 100048, China
| | - Ke Xiong
- Beijing Engineering and Technology Research Centre of Food Additives, Beijing Technology & Business University (BTBU), Beijing, 100048, China.
- Beijing Laboratory for Food Quality and Safety, Beijing Technology & Business University (BTBU), Beijing, 100048, China
- Beijing Innovation Centre for Food Nutrition and Human Health, Beijing Technology & Business University (BTBU), Beijing, 100048, China
| | - Hongmin Zhen
- Beijing Engineering and Technology Research Centre of Food Additives, Beijing Technology & Business University (BTBU), Beijing, 100048, China.
- Beijing Laboratory for Food Quality and Safety, Beijing Technology & Business University (BTBU), Beijing, 100048, China
- Beijing Innovation Centre for Food Nutrition and Human Health, Beijing Technology & Business University (BTBU), Beijing, 100048, China
| | - Mengmeng Li
- Beijing Engineering and Technology Research Centre of Food Additives, Beijing Technology & Business University (BTBU), Beijing, 100048, China.
| | - Yumeng Hu
- Beijing Engineering and Technology Research Centre of Food Additives, Beijing Technology & Business University (BTBU), Beijing, 100048, China.
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7
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Ateiah M, Gandalipov ER, Rubel AA, Rubel MS, Kolpashchikov DM. DNA Nanomachine (DNM) Biplex Assay for Differentiating Bacillus cereus Species. Int J Mol Sci 2023; 24:ijms24054473. [PMID: 36901903 PMCID: PMC10003685 DOI: 10.3390/ijms24054473] [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: 01/31/2023] [Revised: 02/16/2023] [Accepted: 02/21/2023] [Indexed: 03/12/2023] Open
Abstract
Conventional methods for the detection and differentiation of Bacillus cereus group species have drawbacks mostly due to the complexity of genetic discrimination between the Bacillus cereus species. Here, we describe a simple and straightforward assay based on the detected unamplified bacterial 16S rRNA by DNA nanomachine (DNM). The assay uses a universal fluorescent reporter and four all-DNA binding fragments, three of which are responsible for "opening up" the folded rRNA while the fourth stand is responsible for detecting single nucleotide variation (SNV) with high selectivity. Binding of the DNM to 16S rRNA results in the formation of the 10-23 deoxyribozyme catalytic core that cleaves the fluorescent reporter and produces a signal, which is amplified over time due to catalytic turnover. This developed biplex assay enables the detection of B. thuringiensis 16S rRNA at fluorescein and B. mycoides at Cy5 channels with a limit of detection of 30 × 103 and 35 × 103 CFU/mL, respectively, after 1.5 h with a hands-on time of ~10 min. The new assay may simplify the analysis of biological RNA samples and might be useful for environmental monitoring as a simple and inexpensive alternative to amplification-based nucleic acid analysis. The DNM proposed here may become an advantageous tool for detecting SNV in clinically significant DNA or RNA samples and can easily differentiate SNV under broadly variable experimental conditions and without prior amplification.
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Affiliation(s)
- Muhannad Ateiah
- Laboratory of Solution Chemistry of Advanced Materials and Technologies, ITMO University, Lomonosova St. 9, St. Petersburg 191002, Russia; (M.A.); (E.R.G.); (M.S.R.)
| | - Erik R. Gandalipov
- Laboratory of Solution Chemistry of Advanced Materials and Technologies, ITMO University, Lomonosova St. 9, St. Petersburg 191002, Russia; (M.A.); (E.R.G.); (M.S.R.)
| | - Aleksandr A. Rubel
- Laboratory of Amyloid Biology, St. Petersburg State University, Universitetskaya enb. 7-9, St. Petersburg 199034, Russia;
| | - Maria S. Rubel
- Laboratory of Solution Chemistry of Advanced Materials and Technologies, ITMO University, Lomonosova St. 9, St. Petersburg 191002, Russia; (M.A.); (E.R.G.); (M.S.R.)
| | - Dmitry M. Kolpashchikov
- Laboratory of Solution Chemistry of Advanced Materials and Technologies, ITMO University, Lomonosova St. 9, St. Petersburg 191002, Russia; (M.A.); (E.R.G.); (M.S.R.)
- Chemistry Department, University of Central Florida, 4000 Central Florida Boulevard, Orlando, FL 32816-2366, USA
- Burnett School of Biomedical Sciences, University of Central Florida, Orlando, FL 32816, USA
- Correspondence:
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Kang Y, Shi S, Sun H, Dan J, Liang Y, Zhang Q, Su Z, Wang J, Zhang W. Magnetic Nanoseparation Technology for Efficient Control of Microorganisms and Toxins in Foods: A Review. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:16050-16068. [PMID: 36533981 DOI: 10.1021/acs.jafc.2c07132] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Outbreaks of foodborne diseases mediated by food microorganisms and toxins remain one of the leading causes of disease and death worldwide. It not only poses a serious threat to human health and safety but also imposes a huge burden on health care and socioeconomics. Traditional methods for the removal and detection of pathogenic bacteria and toxins in various samples such as food and drinking water have certain limitations, requiring a rapid and sensitive strategy for the enrichment and separation of target analytes. Magnetic nanoparticles (MNPs) exhibit excellent performance in this field due to their fascinating properties. The strategy of combining biorecognition elements with MNPs can be used for fast and efficient enrichment and isolation of pathogens. In this review, we describe new trends and practical applications of magnetic nanoseparation technology in the detection of foodborne microorganisms and toxins. We mainly summarize the biochemical modification and functionalization methods of commonly used magnetic nanomaterial carriers and discuss the application of magnetic separation combined with other instrumental analysis techniques. Combined with various detection techniques, it will increase the efficiency of detection and identification of microorganisms and toxins in rapid assays.
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Affiliation(s)
- Yi Kang
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, P. R. China
| | - Shuo Shi
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, P. R. China
| | - Hao Sun
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, P. R. China
| | - Jie Dan
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, P. R. China
| | - Yanmin Liang
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, P. R. China
| | - Qiuping Zhang
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, P. R. China
| | - Zehui Su
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, P. R. China
| | - Jianlong Wang
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, P. R. China
| | - Wentao Zhang
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, P. R. China
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He Y, Cheng Y, Wen X. A design of red emission CDs-based aptasensor for sensitive detection of insulin via fluorescence resonance energy transfer. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 280:121497. [PMID: 35749972 DOI: 10.1016/j.saa.2022.121497] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 05/31/2022] [Accepted: 06/10/2022] [Indexed: 06/15/2023]
Abstract
We successfully designed an aptasensor based on the red emission carbon dots (R-CDs) and effectively detected insulin (INS) via fluorescence resonance energy transfer (FRET). In the process, the aptamer (apt) labeled with R-CDs (R-CDs@apt) was used as fluorescence donor and graphene oxide (GO) was used as fluorescence receptor. The successful detection due to the aptamer sequence has a certain affinity for Go and INS, while the affinity for INS is stronger than that of GO. When INS is not added to the detection system, the aptamer is adsorbed onto the surface of GO, shortening the distance between R-CDs@apt and GO, resulting in FRET and the quenching of fluorescence of R-CDs@apt. When INS was added to the detection system, the aptamer selectively bound INS and separated from the adsorption of GO, FRET gradually disappeared and the fluorescence of R-CDs@apt/GO/INS system was restored. By comparing the changes of fluorescence intensity before and after adding INS, the detection of INS was implemented. The aptasensor has a good linear curve with the detection limit of as low as 1.1 nM when the concentration of INS reached 1.3-150 nM. This method has excellent selectivity and anti-interference. Therefore, it is a potential method for detecting substances in biological fluids.
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Affiliation(s)
- Yanhua He
- Shanxi Normal University, Taiyuan 030031, PR China.
| | | | - Xiaoye Wen
- Shanxi Normal University, Taiyuan 030031, PR China
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10
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Wang L, Yang H, Wang K, Yang H, Zhao M, Shang Y, Wang F, Dong J, Zhao W, Li L, Liang W, Wang Y. A Visualized Isothermal Amplification Method for Rapid and Specific Detection of Emetic and Non-emetic Bacillus cereus in Dairy Products. Front Microbiol 2022; 13:802656. [PMID: 35418965 PMCID: PMC8996228 DOI: 10.3389/fmicb.2022.802656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Accepted: 02/03/2022] [Indexed: 11/13/2022] Open
Abstract
Bacillus cereus is widely distributed in foods, especially dairy products, and can lead to diarrhea (non-emetic B. cereus) and emesis (emetic B. cereus). Although diarrhea due to B. cereus is usually mild, emesis can lead to acute encephalopathy and even death. To develop rapid and sensitive detection methods for B. cereus in foods, specific primers targeting the gyrase B (gyrB) and cereulide synthetase (ces) genes were designed and screened using recombinase polymerase amplification (RPA). Probes and base substitutions were introduced to improve specificity and eliminate primer-dependent artifacts. The 5' ends of the reverse primers and probes were modified with biotin and fluorescein isothiocyanate for detection of RPA products on a lateral flow strip (LFS). The developed RPA-LFS assay allows detection within 20 min at 37°C with no cross-reactivity with other foodborne pathogens. The limit of detection was 104 copies/ml and 102 CFU/ml in pure cultures and milk, respectively. Comparisons with established methods using cream obtained similar results. A specific, rapid, and sensitive RPA-LFS assay was successfully developed for on-site detection of B. cereus in dairy products to distinguish emetic from non-emetic strains.
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Affiliation(s)
- Lei Wang
- Department of Central Laboratory, Lianyungang Hospital Affiliated to Jiangsu University, Lianyungang, China.,School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, China
| | - Huansen Yang
- Lianyungang Center for Disease Control and Prevention, Lianyungang, China
| | - Kun Wang
- Department of Central Laboratory, Lianyungang Hospital Affiliated to Jiangsu University, Lianyungang, China
| | - Haitao Yang
- Jiangsu Key Laboratory of Marine Biological Resources and Environment, Jiangsu Key Laboratory of Marine Pharmaceutical Compound Screening, Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, Lianyungang, China
| | - Mengdi Zhao
- Department of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou, China
| | - Yuping Shang
- Department of Central Laboratory, Lianyungang Hospital Affiliated to Jiangsu University, Lianyungang, China
| | - Fang Wang
- Department of Central Laboratory, Lianyungang Hospital Affiliated to Jiangsu University, Lianyungang, China
| | - Jingquan Dong
- Jiangsu Key Laboratory of Marine Biological Resources and Environment, Jiangsu Key Laboratory of Marine Pharmaceutical Compound Screening, Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, Lianyungang, China
| | - Weiguo Zhao
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, China
| | - Li Li
- Lianyungang Center for Disease Control and Prevention, Lianyungang, China
| | - Wei Liang
- Laboratory Department of Ningbo First Hospital, Ningbo Hospital of Zhejiang University, Ningbo, China
| | - Yan Wang
- Department of Central Laboratory, Lianyungang Hospital Affiliated to Jiangsu University, Lianyungang, China
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11
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Guarding food safety with conventional and up-conversion near-infrared fluorescent sensors. J Adv Res 2022; 41:129-144. [DOI: 10.1016/j.jare.2022.01.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 01/19/2022] [Accepted: 01/24/2022] [Indexed: 01/05/2023] Open
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