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Xu Q, Xie G, Shi Q, Liu J, Zhou B, Tong P, Aguilar ZP, Xu H. The dual nucleic acid amplification with dynamic light scattering strategy for ultrasensitive detection of Salmonella in milk. Microchem J 2022. [DOI: 10.1016/j.microc.2022.108143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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2
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A Specific and Sensitive Aptamer-Based Digital PCR Chip for Salmonella typhimurium Detection. BIOSENSORS 2022; 12:bios12070458. [PMID: 35884261 PMCID: PMC9313467 DOI: 10.3390/bios12070458] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 06/22/2022] [Accepted: 06/23/2022] [Indexed: 12/23/2022]
Abstract
Food poisoning and infectious diseases caused by Salmonella typhimurium (S. typhimurium) are serious public health concerns for human health and food safety. The diversity and complexity of food matrices pose great challenges for rapid and ultra-sensitive detection of S. typhimurium in food samples. A method capable of identification, detection, and quantification of S. typhimurium is essential for addressing these issues. In this study, aptamer-coated magnetic beads (Apt-MBs) are employed as capture bio-probes to specifically and selectively concentrate S. typhimurium in food samples. A self-priming chip-based digital PCR was then presented as another biosensor for on-site detection and quantification of S. typhimurium cells. The chip we developed was robust and did not require any external power for sample loading. The combination of Apt-MBs with an on-chip digital detection realized the integration into lab-on-a-chip-based biosensors for on-site monitoring of foodborne pathogens. It was possible to capture and detect S. typhimurium cells as low as 90 CFU/reaction with a capture efficiency of 94.5%. Additionally, the whole process only took about 2 h. This unique platform could also be used to monitor other target bacteria with high specificity and sensitivity by utilizing different aptamers. Furthermore, the platform has potential applications in point-of-care testing in the future.
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Garrido-Maestu A, Prado M. Naked-eye detection strategies coupled with isothermal nucleic acid amplification techniques for the detection of human pathogens. Compr Rev Food Sci Food Saf 2022; 21:1913-1939. [PMID: 35122372 DOI: 10.1111/1541-4337.12902] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 12/13/2021] [Accepted: 12/14/2021] [Indexed: 12/26/2022]
Abstract
Nucleic acid amplification-based techniques have gained acceptance by the scientific, and general, community as reference methodologies for many different applications. Since the development of the gold standard of these techniques, polymerase chain reaction (PCR), back in the 1980s many improvements have been made, and alternative techniques emerged reporting improvements over PCR. Among these, isothermal amplification approaches resulted of particular interest as could overcome the need of specialized equipment to accurately control temperature changes, but it was after year 2000 that these techniques have flourished in a huge number of novel alternatives with many different degrees of complexities and requirements. An added value is their possibility to be combined with many different naked-eye detection strategies, simplifying the resources needed, allowing to reduce cost, and serving as the basis for novel developments of lab-on-chip systems, and miniaturized devices, for point-of-care testing. In this review, we will go over different types of naked-eye detection strategies, combined with isothermal amplification. This will provide the readers up-to-date information for them to select the most appropriate strategies depending on the particular needs and resources for their experimental setup.
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Affiliation(s)
- Alejandro Garrido-Maestu
- Food Quality and Safety Research Group, International Iberian Nanotechnology Laboratory, Braga, Portugal
| | - Marta Prado
- Food Quality and Safety Research Group, International Iberian Nanotechnology Laboratory, Braga, Portugal
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4
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Malini S, Roy A, Raj K, Raju KSA, Ali IH, Mahesh B, Yadav KK, Islam S, Jeon BH, Lee SS. Sensing beyond Senses: An Overview of Outstanding Strides in Architecting Nanopolymer-Enabled Sensors for Biomedical Applications. Polymers (Basel) 2022; 14:601. [PMID: 35160590 PMCID: PMC8840134 DOI: 10.3390/polym14030601] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 01/28/2022] [Accepted: 01/29/2022] [Indexed: 11/17/2022] Open
Abstract
Nano-enabled sensing is an expanding interdisciplinary field of emerging science with dynamic multifunctional detecting capabilities, equipped with a wide range of multi-faceted nanomaterial having diverse dimensions and composition. They have proven to be highly robust, sensitive, and useful diagnostic tools ranging from advanced industrial processes to ordinary consumer products. As no single nanomaterial has proved to be unparalleled, recent years has witnessed a large number of nanomaterial-based sensing strategies for rapid detection and quantification of processes and substances with a high degree of reliability. Nano-furnished platforms, because of easy fabrication methods and chemical versatility, can serve as ideal sensing means through different transduction mechanisms. This article, through a unified experimental-theoretical approach, uses literature of recent years to introduce, evaluate, and analyze significant developments in the area of nanotechnology-aided sensors incorporating the various classes of nanomaterial. Addressing the broad interests, the work also summarizes the sensing mechanisms using schematic illustrations, attempts to integrate the performance of different categories of nanomaterials in the design of sensors, knowledge gaps, regulatory aspects, future research directions, and challenges of implementing such techniques in standalone devices. In view of a dependency of analysis and testing on sustained growth of sensor-supported platforms, this article inspires the scientific community for more attention in this field.
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Affiliation(s)
- S. Malini
- Department of Chemistry, B.M.S. College of Engineering, Bangalore 560019, India;
| | - Arpita Roy
- Department of Biotechnology, School of Engineering & Technology, Sharda University, Greater Noida 201310, India;
| | - Kalyan Raj
- Department of Chemistry, B.M.S. College of Engineering, Bangalore 560019, India;
| | - K. S. Anantha Raju
- Department of Chemistry, Dayananda Sagar College of Engineering, Bangalore 560078, India;
| | - Ismat H. Ali
- Department of Chemistry, College of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia;
| | - B. Mahesh
- Department of Chemistry, JSS Academy of Technical Education, Bangalore 560060, India;
| | - Krishna Kumar Yadav
- Faculty of Science and Technology, Madhyanchal Professional University, Ratibad, Bhopal 462044, India;
| | - Saiful Islam
- Civil Engineering Department, College of Engineering, King Khalid University, Abha 61421, Saudi Arabia;
| | - Byong-Hun Jeon
- Department of Earth Resources & Environmental Engineering, Hanyang University, 222-Wangsimni-ro, Seongdong-gu, Seoul 04763, Korea;
| | - Sean Seungwon Lee
- Department of Earth Resources & Environmental Engineering, Hanyang University, 222-Wangsimni-ro, Seongdong-gu, Seoul 04763, Korea;
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Couto C, Almeida A. Metallic Nanoparticles in the Food Sector: A Mini-Review. Foods 2022; 11:402. [PMID: 35159552 PMCID: PMC8833908 DOI: 10.3390/foods11030402] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 01/27/2022] [Accepted: 01/28/2022] [Indexed: 12/10/2022] Open
Abstract
Nanomaterials, and in particular metallic nanoparticles (MNPs), have significantly contributed to the production of healthier, safer, and higher-quality foods and food packaging with special properties, such as greater mechanical strength, improved gas barrier capacity, increased water repellency and ability to inhibit microbial contamination, ensuring higher quality and longer product shelf life. MNPs can also be incorporated into chemical and biological sensors, enabling the design of fast and sensitive monitoring devices to assess food quality, from freshness to detection of allergens, food-borne pathogens or toxins. This review summarizes recent developments in the use of MNPs in the field of food science and technology. Additionally, a brief overview of MNP synthesis and characterization techniques is provided, as well as of the toxicity, biosafety and regulatory issues of MNPs in the agricultural, feed and food sectors.
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Affiliation(s)
- Cristina Couto
- TOXRUN–Toxicology Research Unit, University Institute of Health Sciences, CESPU, CRL, 4585-116 Gandra, Portugal
| | - Agostinho Almeida
- LAQV/REQUIMTE, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal;
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Yusuf L, Appeaning M, Amole TG, Musa BM, Galadanci HS, Quashie PK, Aliyu IA. Rapid, Cheap, and Effective COVID-19 Diagnostics for Africa. Diagnostics (Basel) 2021; 11:diagnostics11112105. [PMID: 34829451 PMCID: PMC8625903 DOI: 10.3390/diagnostics11112105] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 09/27/2021] [Accepted: 10/13/2021] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Although comprehensive public health measures such as mass quarantine have been taken internationally, this has generally been ineffective, leading to a high infection and mortality rate. Despite the fact that the COVID-19 pandemic has been downgraded to epidemic status in many countries, the real number of infections is unknown, particularly in low-income countries. However, precision shielding is used in COVID-19 management, and requires estimates of mass infection in key groups. As a result, rapid tests for the virus could be a useful screening tool for asymptomatic virus shedders who are about to come into contact with sensitive groups. In Africa and other low- and middle-income countries there is high rate of COVID-19 under-diagnosis, due to the high cost of molecular assays. Exploring alternate assays to the reverse transcriptase polymerase chain reaction (RT-PCR) for COVID-19 diagnosis is highly warranted. AIM This review explored the feasibility of using alternate molecular, rapid antigen, and serological diagnostic assays to accurately and precisely diagnose COVID-19 in African populations, and to mitigate severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) RT-PCR diagnostic challenges in Africa. METHOD We reviewed publications from internet sources and searched for appropriate documents available in English. This included Medline, Google Scholar, and Ajol. We included primary literature and some review articles that presented knowledge on the current trends on SARS-CoV-2 diagnostics in Africa and globally. RESULTS Based on our analysis, we highlight the utility of four different alternatives to RT-PCR. These include two isothermal nucleic acid amplification assays (loop-mediated isothermal amplification (LAMP) and recombinase polymerase amplification (RPA)), rapid antigen testing, and antibody testing for tackling difficulties posed by SARS-CoV-2 RT-PCR testing in Africa. CONCLUSION The economic burden associated COVID-19 mass testing by RT-PCR will be difficult for low-income nations to meet. We provide evidence for the utility and deployment of these alternate testing methods in Africa and other LMICs.
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Affiliation(s)
- Lukman Yusuf
- Department of Medical Laboratory Science, College of Health Sciences, Bayero University Kano, Kano 700233, Nigeria;
| | - Mark Appeaning
- West African Centre for Cell Biology of Infectious Pathogens (WACCBIP), College of Basic and Applied Sciences, University of Ghana, P.O. Box LG54, Legon, Accra 23321, Ghana;
- Department of Medical Laboratory Science, Faculty of Health and Allied Sciences, Koforidua Technical University, P.O. Box KF981, Koforidua 03420, Ghana
| | - Taiwo Gboluwaga Amole
- Africa Center of Excellence for Population Health and Policy, Bayero University Kano (ACEPHAP), Kano 700233, Nigeria; (T.G.A.); (B.M.M.); (H.S.G.)
- Department of Community Medicine, Bayero University Kano, Aminu Kano Teaching Hospital, Kano 700233, Nigeria
| | - Baba Maiyaki Musa
- Africa Center of Excellence for Population Health and Policy, Bayero University Kano (ACEPHAP), Kano 700233, Nigeria; (T.G.A.); (B.M.M.); (H.S.G.)
- Department of Medicine, College of Health Sciences, Bayero University Kano, Aminu Kano Teaching Hospital, Kano 700233, Nigeria
| | - Hadiza Shehu Galadanci
- Africa Center of Excellence for Population Health and Policy, Bayero University Kano (ACEPHAP), Kano 700233, Nigeria; (T.G.A.); (B.M.M.); (H.S.G.)
- Department of Gynecology and Obstetrics, College of Health Sciences, Bayero University Kano, Kano 700233, Nigeria
| | - Peter Kojo Quashie
- West African Centre for Cell Biology of Infectious Pathogens (WACCBIP), College of Basic and Applied Sciences, University of Ghana, P.O. Box LG54, Legon, Accra 23321, Ghana;
- Correspondence: (P.K.Q.); (I.A.A.)
| | - Isah Abubakar Aliyu
- Department of Medical Laboratory Science, College of Health Sciences, Bayero University Kano, Kano 700233, Nigeria;
- Africa Center of Excellence for Population Health and Policy, Bayero University Kano (ACEPHAP), Kano 700233, Nigeria; (T.G.A.); (B.M.M.); (H.S.G.)
- Correspondence: (P.K.Q.); (I.A.A.)
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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: 26] [Impact Index Per Article: 8.7] [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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Manoj D, Shanmugasundaram S, Anandharamakrishnan C. Nanosensing and nanobiosensing: Concepts, methods, and applications for quality evaluation of liquid foods. Food Control 2021. [DOI: 10.1016/j.foodcont.2021.108017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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9
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Development of an on-spot and rapid recombinase polymerase amplification assay for Aspergillus flavus detection in grains. Food Control 2021. [DOI: 10.1016/j.foodcont.2021.107957] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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10
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Yu H, Yu J, Li L, Zhang Y, Xin S, Ni X, Sun Y, Song K. Recent Progress of the Practical Applications of the Platinum Nanoparticle-Based Electrochemistry Biosensors. Front Chem 2021; 9:677876. [PMID: 34012952 PMCID: PMC8128108 DOI: 10.3389/fchem.2021.677876] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Accepted: 04/07/2021] [Indexed: 11/28/2022] Open
Abstract
The detection of biomolecules using various biosensors with excellent sensitivity, selectivity, stability, and reproducibility, is of great significance in the analytical and biomedical fields toward achieving their practical applications. Noble metal nanoparticles are favorable candidates due to their unique optical, surface electrical effect, and catalytic properties. Among these noble metal nanoparticles, platinum nanoparticles (Pt NPs) have been widely employed for the detection of bioactive substances such as glucose, glutamic acid, and hormones. However, there is still a long way to go before the potential challenges in the practical applications of biomolecules are fully overcome. Bearing this in mind, combined with our research experience, we summarized the recent progress of the Pt NP-based biosensors and highlighted the current problems that exist in their practical applications. The current review would provide fundamental guidance for future applications using the Pt NP-based biosensors in food, agricultural, and medical fields.
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Affiliation(s)
- Han Yu
- School of Life Sciences, Changchun Normal University, Changchun, China
| | - Jingbo Yu
- School of Life Sciences, Changchun Normal University, Changchun, China
| | - Linlin Li
- School of Life Sciences, Changchun Normal University, Changchun, China
| | - Yujia Zhang
- School of Life Sciences, Changchun Normal University, Changchun, China
| | - Shuquan Xin
- School of Life Sciences, Changchun Normal University, Changchun, China
| | - Xiuzhen Ni
- School of Life Sciences, Changchun Normal University, Changchun, China
| | - Yuan Sun
- Center of Pharmaceutical Engineering and Technology, Harbin University of Commerce, Harbin, China
| | - Kai Song
- School of Life Sciences, Changchun Normal University, Changchun, China
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Dehghani Z, Nguyen T, Golabi M, Hosseini M, Rezayan AH, Mohammadnejad J, Wolff A, Vinayaka AC. Magnetic beads modified with Pt/Pd nanoparticle and aptamer as a catalytic nano-bioprobe in combination with loop mediated isothermal amplification for the on-site detection of Salmonella Typhimurium in food and fecal samples. Food Control 2021. [DOI: 10.1016/j.foodcont.2020.107664] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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12
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Hu L, Zhu X, Shang L, Teng Y, Li J, Li B. Inhibit the intrinsic bacteria from konjac glucomannan hydrosol for its improved viscosity stability. Food Hydrocoll 2021. [DOI: 10.1016/j.foodhyd.2020.106197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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13
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Wang L, He K, Sadak O, Wang X, Wang Q, Xu X. Visual detection of in vitro nucleic acid replication by submicro- and nano-sized materials. Biosens Bioelectron 2020; 169:112602. [PMID: 32947078 DOI: 10.1016/j.bios.2020.112602] [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: 06/11/2020] [Revised: 08/29/2020] [Accepted: 09/06/2020] [Indexed: 12/15/2022]
Abstract
The rapid growth of in vitro nucleic acid replication has offered a powerful tool for clinical diagnosis, food safety detection and environmental monitorning. Successful implementation of various isothermal nucleic acid amplification methods enables rapid replication of target sequences without the participant of a thermal cycler. Point-of-need analysis possesses great superiorities in user-friendly, instant results analysis, low manufacturing, and consumable costs. To meet the great challenge of point-of-need analysis, developing simple and rapid visual methods becomes crucial. Submicro- and nanomaterials possess unique surface properties, which enables their rapid response to DNA amplicons. Their unique optical, magnetic, catalytic, and other physical/chemical properties have been frequently employed for the visual detection of in vitro nucleic acid replications. Herein, we aim to review the submicro- and nanomaterials-based visual methods for detection of nucleic acid amplification. The visual methods are classified according to the designing strategies (e.g. LSPR, bridging flocculation, luminescence, catalytic reaction, separation, etc.). The basic principles, merits and drawbacks of each strategy are described. The application in analysis of nucleic acid targets and non-nucleic acid targets are discussed. The main challenges and future research directions are also highlighted in this rapidly emerging field.
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Affiliation(s)
- Liu Wang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China
| | - Kaiyu He
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China
| | - Omer Sadak
- Department of Electrical and Electronics Engineering, Ardahan University, 75000, Turkey
| | - Xinquan Wang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China.
| | - Qiang Wang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China
| | - Xiahong Xu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China.
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Detection of food spoilage and adulteration by novel nanomaterial-based sensors. Adv Colloid Interface Sci 2020; 286:102297. [PMID: 33142210 DOI: 10.1016/j.cis.2020.102297] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Revised: 10/13/2020] [Accepted: 10/22/2020] [Indexed: 02/06/2023]
Abstract
Food industry is always looking for more innovative and accurate ways to monitor the food safety and quality control of final products. Current detection techniques of analytes are costly and time-consuming, and occasionally require professional experts and specialized tools. The usage of nanomaterials in sensory systems has eliminated not only these drawbacks but also has advantages such as higher sensitivity and selectivity. This article first presents a general overview of the current studies conducted on the detection of spoilage and adulteration in foods from 2015 to 2020. Then, the sensory properties of nanomaterials including metal and magnetic nanoparticles, carbon nanostructures (nanotubes, graphene and its derivatives, and nanofibers), nanowires, and electrospun nanofibers are presented. The latest investigations and advancements in the application of nanomaterial-based sensors in detecting spoilage (food spoilage pathogens, toxins, pH changes, and gases) and adulterants (food additives, glucose, melamine, and urea) have also been discussed in the following sections. To conclude, these sensors can be applied in the smart packaging of food products to meet the demand of consumers in the new era.
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15
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Universal linker Polymerase Chain Reaction-triggered Strand Displacement Amplification visual biosensor for ultra-sensitive detection of Salmonella. Talanta 2020; 222:121575. [PMID: 33167264 DOI: 10.1016/j.talanta.2020.121575] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 08/07/2020] [Accepted: 08/10/2020] [Indexed: 01/24/2023]
Abstract
Salmonella is a principal causal agent of pathogenic outbreaks via food. A universal, highly sensitive and visual Salmonella detection method was proposed in this paper, based on a universal linker PCR (UL-PCR)-triggered Strand Displacement Amplification (SDA). In this research, the UL-PCR achieved the primary amplification. The universal linker primer was ingeniously designed and composed of two parts, one of which was the binding sequence of the target, and the other was the universal linker. Complementary sequences of the G-quadruplex and the nicking endonuclease recognition sequence were included in the universal linker. Therefore, the G-quadruplexes and nicking sites were successfully introduced into the UL-PCR products, providing a basis for further SDA triggering. SDA achieved the secondary signal amplification and generated a large amount of label-free DNAzymes. Following SDA, DNAzymes catalyzed 3,3',5,5'-tetramethylaniline (TMB) into colored compounds visible to the naked eye. We obtained the best experimental conditions by univariate analysis. Under optimal conditions, this proposed universal label-free method could detect Salmonella genome at level as low as 22 copies mL-1, with an excellent linear range between 102 copies mL-1 and 107 copies mL-1. And the limit of quantification (LOQ) was 102 copies mL-1. This strategy shows promise for broad applications.
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16
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Hong H, Sun C, Wei S, Sun X, Mutukumira A, Wu X. Development of a real-time recombinase polymerase amplification assay for rapid detection of Salmonella in powdered infant formula. Int Dairy J 2020. [DOI: 10.1016/j.idairyj.2019.104579] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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17
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Pissuwan D, Gazzana C, Mongkolsuk S, Cortie MB. Single and multiple detections of foodborne pathogens by gold nanoparticle assays. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2019; 12:e1584. [PMID: 31532914 DOI: 10.1002/wnan.1584] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 04/07/2019] [Revised: 07/20/2019] [Accepted: 07/23/2019] [Indexed: 12/14/2022]
Abstract
A late detection of pathogenic microorganisms in food and drinking water has a high potential to cause adverse health impacts in those who have ingested the pathogens. For this reason there is intense interest in developing precise, rapid and sensitive assays that can detect multiple foodborne pathogens. Such assays would be valuable components in the campaign to minimize foodborne illness. Here, we discuss the emerging types of assays based on gold nanoparticles (GNPs) for rapidly diagnosing single or multiple foodborne pathogen infections. Colorimetric and lateral flow assays based on GNPs may be read by the human eye. Refractometric sensors based on a shift in the position of a plasmon resonance absorption peak can be read by the new generation of inexpensive optical spectrometers. Surface-enhanced Raman spectroscopy and the quartz microbalance require slightly more sophisticated equipment but can be very sensitive. A wide range of electrochemical techniques are also under development. Given the range of options provided by GNPs, we confidently expect that some, or all, of these technologies will eventually enter routine use for detecting pathogens in food. This article is categorized under: Diagnostic Tools > Biosensing.
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Affiliation(s)
- Dakrong Pissuwan
- Materials Science and Engineering Program, Faculty of Science, Mahidol University, Bangkok, Thailand.,Nanobiotechnology and Nanobiomaterials Research Laboratory, School of Materials Science and Innovation, Faculty of Science, Mahidol University, Bangkok, Thailand.,School of Mathematical and Physical Sciences, Faculty of Science, University of Technology Sydney, New South Wales, Australia
| | - Camilla Gazzana
- School of Mathematical and Physical Sciences, Faculty of Science, University of Technology Sydney, New South Wales, Australia
| | - Skorn Mongkolsuk
- Department of Biotechnology, Faculty of Science, Mahidol University, Bangkok, Thailand.,Laboratory of Biotechnology, Chulabhorn Research Institute, Bangkok, Thailand
| | - Michael B Cortie
- School of Mathematical and Physical Sciences, Faculty of Science, University of Technology Sydney, New South Wales, Australia
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