1
|
Tsai CN, Lee CY, Chen HY, Hsieh BC. Parylene Double-Layer Coated Screen-Printed Carbon Electrode for Label-Free and Reagentless Capacitive Aptasensing of Gliadin. ACS Sens 2024. [PMID: 38982801 DOI: 10.1021/acssensors.4c00875] [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: 07/11/2024]
Abstract
Celiac patients are required to strictly adhere to a gluten-free diet because even trace amounts of gluten can damage their small intestine and leading to serious complications. Despite increased awareness, gluten can still be present in products due to cross-contamination or hidden ingredients, making regular monitoring essential. With the goal of guaranteeing food safety for consuming labeled gluten-free products, a capacitive aptasensor was constructed to target gliadin, the main allergic gluten protein for celiac disease. The success of capacitive aptasensing was primarily realized by coating a Parylene double-layer (1000 nm Parylene C at the bottom with 400 nm Parylene AM on top) on the electrode surface to ensure both high insulation quality and abundant reactive amino functionalities. Under the optimal concentration of aptamer (5 μM) used for immobilization, a strong linear relationship exists between the amount of gliadin (0.01-1.0 mg/mL) and the corresponding ΔC response (total capacitance decrease during a 20 min monitoring period after sample introduction), with an R2 of 0.9843. The detection limit is 0.007 mg/mL (S/N > 5), equivalent to 0.014 mg/mL (14 ppm) of gluten content. Spike recovery tests identified this system is free from interferences in corn and cassava flour matrices. The analytical results of 24 commercial wheat flour samples correlated well with a gliadin ELISA assay (R2 = 0.9754). The proposed label-free and reagentless capacitive aptasensor offers advantages of simplicity, cost-effectiveness, ease of production, and speediness, making it a promising tool for verifying products labeled as gluten-free (gluten content <20 ppm).
Collapse
Affiliation(s)
- Chun-Ning Tsai
- Department of Biomechatronics Engineering, National Taiwan University, Taipei 10617, Taiwan
| | - Chin-Yun Lee
- Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan
| | - Hsien-Yeh Chen
- Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan
| | - Bo-Chuan Hsieh
- Department of Biomechatronics Engineering, National Taiwan University, Taipei 10617, Taiwan
| |
Collapse
|
2
|
Bruce-Tagoe TA, Bhaskar S, Kavle RR, Jeevanandam J, Acquah C, Ohemeng-Boahen G, Agyei D, Danquah MK. Advances in aptamer-based biosensors for monitoring foodborne pathogens. JOURNAL OF FOOD SCIENCE AND TECHNOLOGY 2024; 61:1252-1271. [PMID: 38910921 PMCID: PMC11190136 DOI: 10.1007/s13197-023-05889-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 09/27/2023] [Accepted: 10/21/2023] [Indexed: 06/25/2024]
Abstract
Biosensors are analytical devices for detecting a wide range of targets, including cells, proteins, DNA, enzymes, and chemical and biological compounds. They mostly rely on using bioprobes with a high binding affinity to the target for specific detection. However, low specificity and effectiveness of the conventional biosensors has led to the search for novel materials, that can specifically detect biomolecules. Aptamers are a group of single-stranded DNA or RNA oligonucleotides, that can bind to their targets with high specificity and serve as effective bioprobes for developing aptamer-based biosensors. Aptamers have a shorter production time, high stability, compared to traditional bioprobes, and possess ability to develop them for specific target molecules for tailored applications. Thus, various aptasensing approaches, including electrochemical, optical, surface plasmon resonance and chip-dependent approaches, have been investigated in recent times for various biological targets, including foodborne pathogens. Hence, this article is an overview of various conventional foodborne pathogen detection methods, their limitations and the ability of aptamer-based biosensors to overcome those limitations and replace them. In addition, the current status and advances in aptamer-based biosensors for the detection of foodborne pathogens to ensure food safety were also discussed. Supplementary Information The online version contains supplementary material available at 10.1007/s13197-023-05889-8.
Collapse
Affiliation(s)
| | - Shyju Bhaskar
- Department of Food Science, University of Otago, Dunedin, 9056 New Zealand
| | - Ruchita Rao Kavle
- Department of Food Science, University of Otago, Dunedin, 9056 New Zealand
| | - Jaison Jeevanandam
- CQM - Centro de Química da Madeira, Universidade da Madeira, Campus da Penteada, 9020-105 Funchal, Portugal
| | - Caleb Acquah
- Faculty of Health Sciences, University of Ottawa, Ottawa, ON K1H 8M5 Canada
| | - Godfred Ohemeng-Boahen
- Department of Chemical Engineering, Kwame Nkrumah University of Science and Technology, UPO, Kumasi, Ghana
| | - Dominic Agyei
- Department of Food Science, University of Otago, Dunedin, 9056 New Zealand
| | - Michael K. Danquah
- Chemical Engineering Department, University of Tennessee, Chattanooga, TN 37403 USA
| |
Collapse
|
3
|
Su J, Zheng W. Dual-Toehold-Probe-Mediated Exonuclease-III-Assisted Signal Recycles Integrated with CHA for Detection of mecA Gene Using a Personal Glucose Meter in Skin and Soft Tissue Infection. J Microbiol Biotechnol 2023; 33:1692-1697. [PMID: 37734933 PMCID: PMC10772588 DOI: 10.4014/jmb.2306.06037] [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: 06/22/2023] [Revised: 08/04/2023] [Accepted: 08/10/2023] [Indexed: 09/23/2023]
Abstract
Staphylococcus aureus integrated with mecA gene, which codes for penicillin-binding protein 2a, is resistant to all penicillins and other beta-lactam antibiotics, resulting in poor treatment expectations in skin and soft tissue infections. The development of a simple, sensitive and portable biosensor for mecA gene analysis in S. aureus is urgently needed. Herein, we propose a dual-toehold-probe (sensing probe)-mediated exonuclease-III (Exo-III)-assisted signal recycling for portable detection of the mecA gene in S. aureus. When the target mecA gene is present, it hybridizes with the sensing probe, initiating Exo III-assisted dual signal recycles, which in turn release numerous "3" sequences. The released "3" sequences initiate catalytic hairpin amplification, resulting in the fixation of a sucrase-labeled H2 probe on the surface of magnetic beads (MBs). After magnet-based enrichment of an MB-H1-H2-sucrase complex and removal of a liquid supernatant containing free sucrase, the complex is then used to catalyze sucrose to glucose, which can be quantitatively detected by a personal glucose meter. With a limit of detection of 4.36 fM for mecA gene, the developed strategy exhibits high sensitivity. In addition, good selectivity and anti-interference capability were also attained with this method, making it promising for antibiotic tolerance analysis at the point-of-care.
Collapse
Affiliation(s)
- Jiaguang Su
- Department of Dermatology, The First Affiliated Hospital of Guangxi Medical University, No. 6 Shuangyong Road, Nanning 530021, Guangxi Zhuang Autonomous Region, P.R. China
| | - Wenjun Zheng
- Department of Dermatology, The First Affiliated Hospital of Guangxi Medical University, No. 6 Shuangyong Road, Nanning 530021, Guangxi Zhuang Autonomous Region, P.R. China
| |
Collapse
|
4
|
Zhang L, Xu X, Cao L, Zhu Z, Ding Y, Jiang H, Li B, Liu J. Multi-aptamer-mediated hairpin allosteric and aptamer-assisted CRISPR system for detection of S. pneumoniae and S. aureus. Mikrochim Acta 2023; 191:29. [PMID: 38095724 DOI: 10.1007/s00604-023-06094-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 11/08/2023] [Indexed: 12/18/2023]
Abstract
A novel nucleic acid aptamer nanoprobes-mediated hairpin allosteric and aptamer-assisted CRISPR system for detection of Streptococcus pneumoniae and Staphylococcus aureus is presented. In this fluorescence assay system, utilizing the hairpin allosteric effect caused by the aptamer binding to the target bacteria, the detection of S. pneumoniae is first achieved through changes in fluorescence due to FRET. Subsequently, a Cas12a protein mixture is added to detect S. aureus. The amplified output signal is triggered by two methods to ensure the sensitivity of the method: the synergistic FRET effect is achieved by the assembly of multi-aptamer through the conjugation of streptavidin-biotin, and the trans-cleavage function of CRISPR/Cas 12a. Under the optimized conditions, the proposed hairpin allosteric aptasensor could achieve high sensitivity (a detection limit of 135 cfu/mL) and broad-concentration quantification (dynamic range of 103-107 cfu/mL) of S. pneumoniae. The aptamer-assisted CRISPR system for S. aureus detection showed good linearity (R2 = 0.996) in the concentration range 102-108 cfu/mL, with a detection limit of 39 cfu/mL. No cross-reactivity with other foodborne pathogenic bacteria was observed in both systems. Taking only 55 min, this method of multiple pathogen detection proved to be promising.
Collapse
Affiliation(s)
- Limei Zhang
- Department of Laboratory Medicine, the Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China
- Sichuan Province Engineering Technology Research Center of Molecular Diagnosis of Clinical Diseases, Luzhou, 646000, China
- Molecular Diagnosis of Clinical Diseases Key Laboratory of Luzhou, Luzhou, 646000, China
| | - Xuejing Xu
- Department of Laboratory Medicine, the Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China
- Sichuan Province Engineering Technology Research Center of Molecular Diagnosis of Clinical Diseases, Luzhou, 646000, China
- Molecular Diagnosis of Clinical Diseases Key Laboratory of Luzhou, Luzhou, 646000, China
| | - Linhong Cao
- Department of Laboratory Medicine, the Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China
- Sichuan Province Engineering Technology Research Center of Molecular Diagnosis of Clinical Diseases, Luzhou, 646000, China
- Molecular Diagnosis of Clinical Diseases Key Laboratory of Luzhou, Luzhou, 646000, China
| | - Zixin Zhu
- Department of Laboratory Medicine, the Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China
- Sichuan Province Engineering Technology Research Center of Molecular Diagnosis of Clinical Diseases, Luzhou, 646000, China
- Molecular Diagnosis of Clinical Diseases Key Laboratory of Luzhou, Luzhou, 646000, China
| | - Yinhuan Ding
- Department of Laboratory Medicine, the Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China
- Sichuan Province Engineering Technology Research Center of Molecular Diagnosis of Clinical Diseases, Luzhou, 646000, China
- Molecular Diagnosis of Clinical Diseases Key Laboratory of Luzhou, Luzhou, 646000, China
| | - Hui Jiang
- Department of Laboratory Medicine, the Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China
| | - Baolin Li
- Department of Laboratory Medicine, the Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China.
- Sichuan Province Engineering Technology Research Center of Molecular Diagnosis of Clinical Diseases, Luzhou, 646000, China.
- Molecular Diagnosis of Clinical Diseases Key Laboratory of Luzhou, Luzhou, 646000, China.
| | - Jinbo Liu
- Department of Laboratory Medicine, the Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China.
- Sichuan Province Engineering Technology Research Center of Molecular Diagnosis of Clinical Diseases, Luzhou, 646000, China.
- Molecular Diagnosis of Clinical Diseases Key Laboratory of Luzhou, Luzhou, 646000, China.
| |
Collapse
|
5
|
Wijesinghe KM, Sabbih G, Algama CH, Syed R, Danquah MK, Dhakal S. FRET-Based Single-Molecule Detection of Pathogen Protein IsdA Using Computationally Selected Aptamers. Anal Chem 2023. [PMID: 37327207 DOI: 10.1021/acs.analchem.3c00717] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Iron-regulated surface determinant protein A (IsdA) is a key surface protein found in the foodborne bacteria─Staphylococcus aureus (S. aureus)─which is known to be critical for bacterial survival and colonization. S. aureus is pathogenic and has been linked to foodborne diseases; thus, early detection is critical to prevent diseases caused by this bacterium. Despite IsdA being a specific marker for S. aureus and several detection methods have been developed for sensitive detection of this bacteria such as cell culture, nucleic acids amplification, and other colorimetric and electrochemical methods, the detection of S. aureus through IsdA is underdeveloped. Here, by combining computational generation of target-guided aptamers and fluorescence resonance energy transfer (FRET)-based single-molecule analysis, we presented a widely applicable and robust detection method for IsdA. Three different RNA aptamers specific to the IsdA protein were identified and their ability to switch a FRET construct to a high-FRET state in the presence of protein was verified. The presented approach demonstrated the detection of IsdA down to picomolar levels (×10-12 M, equivalent to ∼1.1 femtomoles IsdA) with a dynamic range extending to ∼40 nM. The FRET-based single-molecule technique that we reported here is capable of detecting the foodborne pathogen protein IsdA with high sensitivity and specificity and has a broader application in the food industry and aptamer-based sensing field by enabling quantitative detection of a wide range of pathogen proteins.
Collapse
Affiliation(s)
- Kalani M Wijesinghe
- Department of Chemistry, Virginia Commonwealth University, Richmond, Virginia 23284, United States
| | - Godfred Sabbih
- Department of Chemical Engineering, University of Tennessee, Chattanooga, Tennessee 37403, United States
| | - Chamika Harshani Algama
- Department of Chemistry, Virginia Commonwealth University, Richmond, Virginia 23284, United States
| | - Rida Syed
- Department of Chemistry, Virginia Commonwealth University, Richmond, Virginia 23284, United States
| | - Michael K Danquah
- Department of Chemical Engineering, University of Tennessee, Chattanooga, Tennessee 37403, United States
| | - Soma Dhakal
- Department of Chemistry, Virginia Commonwealth University, Richmond, Virginia 23284, United States
| |
Collapse
|
6
|
Chuang HS, Fan YJ, Ger TR, Chiu NF, Williams SJ, Bau HH. Editorial: Rapid detection of fungi, microbial, and viral pathogens based on emerging biosensing technology. Front Bioeng Biotechnol 2022; 10:1067322. [DOI: 10.3389/fbioe.2022.1067322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Accepted: 11/04/2022] [Indexed: 11/18/2022] Open
|
7
|
Chen W, Zhang Y, Lai Q, Li Y, Liu Z. Multiple amplification-based fluorometric aptasensor for highly sensitive detection of Staphylococcus aureus. Appl Microbiol Biotechnol 2022; 106:6733-6743. [PMID: 36058939 DOI: 10.1007/s00253-022-12057-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 06/27/2022] [Accepted: 06/28/2022] [Indexed: 11/02/2022]
Abstract
Rapid and accurate detection and identification of Staphylococcus aureus (S. aureus) are of great significance for food safety, environmental monitoring, early clinical diagnosis, and prevention of the spread of drug-resistant bacteria. Herein, we design a fluorometric aptasensor for ultra-sensitive, specific, and rapid detection of S. aureus. The apasensor combines the enrichment and separation of magnetic nanoparticles (MNPs), the biotin-streptavidin conjugation system, and a single S. aureus can release four signaling probes for signal amplification. Aptamer acts as a specific biorecognition element of S. aureus. Four FAM-labeled partially complementary sequences (FAM-pcDNAs) were used as signaling probes. The aptamers were sequential hybridized with the four FAM-pcDNAs to form aptamer&pcDNAs, which were then bound to MNPs via the biotin-streptavidin. When the aptamer specifically recognizes and binds to S. aureus, the FAM-pcDNAs signaling probes are replaced and released into the supernatant. The concentration of S. aureus can be quantified by measuring the fluorescence intensity (λexc/em = 492/520 nm) of the replaced signaling probe FAM-pcDNAs. The results show that the proposed fluorometric aptasensor displays good specificity, ultra-high sensitivity (1.23 cfu/mL), wide linear range (1 ~ 108 cfu/mL), and fast detection speed (~ 1.5 h). The recovery test verifies further that the proposed fluorometric aptasensor can detect S. aureus in spiked blood samples. Since aptamers are easy to customize, we believe that fluorometric aptasensors based on multiple amplification have broad prospects in the construction of practical high-performance biosensors for bacterial detection. KEY POINTS: • Multiple amplification-based fluorometric aptasensor for S. aureus is developed • The aptasensor displays high specificity with a LOD of 1.23 CFU/mL • The aptasensor can directly detect S. aureus in spiked blood samples.
Collapse
Affiliation(s)
- Wei Chen
- Hunan Key Laboratory for Super Microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha, Hunan, China.,Department of Clinical Laboratory, Xiangya Hospital of Central South University, Changsha, Hunan, China.,Department of Microbiology, School of Basic Medical Science Central, South University, Changsha, Hunan, China
| | - Yanke Zhang
- Hunan Key Laboratory for Super Microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha, Hunan, China
| | - Qingteng Lai
- Hunan Key Laboratory for Super Microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha, Hunan, China
| | - Youzhen Li
- Hunan Key Laboratory for Super Microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha, Hunan, China
| | - Zhengchun Liu
- Hunan Key Laboratory for Super Microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha, Hunan, China. .,Department of Microbiology, School of Basic Medical Science Central, South University, Changsha, Hunan, China.
| |
Collapse
|