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An aptamer-assisted biological nanopore biosensor for ultra-sensitive detection of ochratoxin A with a portable single-molecule measuring instrument. Talanta 2022; 248:123619. [PMID: 35671547 DOI: 10.1016/j.talanta.2022.123619] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 05/06/2022] [Accepted: 05/25/2022] [Indexed: 11/22/2022]
Abstract
Biological nanopore-based single-molecule detection technology has shown ultrahigh sensitivity to various target analyte. But the detection scope of interesting targets is limited due to the lack of effective signal conversion strategies. In addition, conventional nanopore detection instruments are cumbersome, resulting nanopore detection can only be performed in laboratory. Herein, a customizable nanopore current amplifier is constructed to lower the cost and increase the portability of the nanopore instrument, and then an immobilized aptamer-based signal conversion strategy is proposed for α-hemolysin (α-HL) nanopore to detect small molecules (ochratoxin A, OTA). The presence of OTA in sample would trigger the release of probe single-strand DNA (ssDNA) from magnetic beads, which could subsequently cause current blockage in nanopore. The results show that the signal frequency of probe ssDNA has a linear relationship with the OTA concentration in the range of 2 × 101~2 × 103 pmol/L. Compared to other methods, our sensing system has achieved an ultra-sensitive detection of OTA with the detection limit as low as 1.697 pmol/L. This strategy could broaden the scope of nanopore detection and have the potential for rapid and in-situ detection of other food contaminants in the future.
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Gu Y, Liu L, Guo J, Xiao S, Fang F, Yu X, Gopinath SCB, Wu J, Liu X. Biomolecular assembly on interdigitated electrode nanosensor for selective detection of insulin-like growth factor-1. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2021; 49:30-37. [PMID: 33467925 DOI: 10.1080/21691401.2020.1865992] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
This research is focussed to quantify IGF1 by electroanalytical analysis on InterDigitated electrode surface and characterized by the microscopic observations. For the detection, antibody and aptamer were used to analyze the level of IGF1. The sandwich pattern (aptamer-IGF1-antibody) was designed on the chemically modified IDE surface and reached the limit of detection to 10 fM with 100 folds enhancement in the sensitivity. Different control experiments (absence of IGF1, binding with IGF2 and with non-complementary aptamer) were failed to show the current changes, discriminated the specific detection. A good detection strategy is to complement the currently following imaging systems for AAA.
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Affiliation(s)
- Yan Gu
- Department of Vascular Surgery, Tianjin First Center Hospital, Tianjin, China
| | - Lijie Liu
- Department of Pharmacy, The Affiliated Hospital of Qingdao University, Qingdao City, China
| | - Jian Guo
- Department of Imaging, The Affiliated Hospital of Qingdao University, Qingdao City, China
| | - Shun Xiao
- Department of Vascular Surgery, The Affiliated Hospital of Qingdao University, Qingdao City, China
| | - Fang Fang
- Department of Oncology, The Affiliated Hospital of Qingdao University, Qingdao City, China
| | - Xiaoyun Yu
- Department of Oncology, The Affiliated Hospital of Qingdao University, Qingdao City, China
| | - Subash C B Gopinath
- Institute of Nano Electronic Engineering, Universiti Malaysia Perlis (UniMAP), Perlis, Malaysia.,Faculty of Chemical Engineering Technology, Universiti Malaysia Perlis (UniMAP), Perlis, Malaysia
| | - Jianlie Wu
- Department of Oncology, The Affiliated Hospital of Qingdao University, Qingdao City, China
| | - Xunqiang Liu
- Department of Vascular surgery, Yan'an Hospital Affiliated to Kunming Medical University, Kunming City, Yunnan Province, China
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Selective Capture and Identification of Methicillin-Resistant Staphylococcus aureus by Combining Aptamer-Modified Magnetic Nanoparticles and Mass Spectrometry. Int J Mol Sci 2021; 22:ijms22126571. [PMID: 34207373 PMCID: PMC8234742 DOI: 10.3390/ijms22126571] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 06/15/2021] [Accepted: 06/16/2021] [Indexed: 11/16/2022] Open
Abstract
A nucleic acid aptamer that specifically recognizes methicillin-resistant Staphylococcus aureus (MRSA) has been immobilized on magnetic nanoparticles to capture the target bacteria prior to mass spectrometry analysis. After the MRSA species were captured, they were further eluted from the nanoparticles and identified using matrix-assisted laser desorption ionization mass spectrometry (MALDI-MS). The combination of aptamer-based capture/enrichment and MS analysis of microorganisms took advantage of the selectivity of both techniques and should enhance the accuracy of MRSA identification. The capture and elution efficiencies for MRSA were optimized by examining factors such as incubation time, temperature, and elution solvents. The aptamer-modified magnetic nanoparticles showed a capture rate of more than 90% under the optimized condition, whereas the capture rates were less than 11% for non-target bacteria. The as-prepared nanoparticles exhibited only a 5% decrease in the capture rate and a 9% decrease in the elution rate after 10 successive cycles of utilization. Most importantly, the aptamer-modified nanoparticles revealed an excellent selectivity towards MRSA in bacterial mixtures. The capture of MRSA at a concentration of 102 CFU/mL remained at a good percentage of 82% even when the other two species were at 104 times higher concentration (106 CFU/mL). Further, the eluted MRSA bacteria were successfully identified using MALDI mass spectrometry.
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An iron oxide nanoworm hybrid on an interdigitated microelectrode silica surface to detect abdominal aortic aneurysms. Mikrochim Acta 2021; 188:185. [PMID: 33977395 DOI: 10.1007/s00604-021-04836-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Accepted: 04/25/2021] [Indexed: 10/21/2022]
Abstract
An abdominal aortic aneurysm (AAA) is abnormal swelling in the abdominal aorta and a prevalent life-threatening disease. This research introduces a new interdigitated microelectrode (IDME)-sensing surface modified by iron oxide nanoworms (IONWs) for detecting the AAA biomarker insulin-like growth factor-1 (IGF1). A sandwich pattern was formulated with the IGF1 aptamer and IGFBP1 (IGF binding protein-1) on the IONW-constructed IDME hybrid to identify IGF1. The surface morphology of the IONWs revealed a uniform distribution of worm-like structures (80-100 nm) as confirmed by FESEM and FETEM analyses. Further, the presence of the major elements, Fe and O, was confirmed by EDX and XPS studies. The crystal planes that appeared in the IONW reflect cubic magnetite. IONW-modified IDME attained a limit of detection for IGF1 of 1 fM (3σ) with an aptamer-IGF1-IGFBP1 sandwich. This sandwich with IGFBP1 enhanced the current level at all concentrations of IGF1 and displayed linearity in the range 1 fM to 100 pM with a determination coefficient of R2 = 0.9373 [y = 3.38221x - 4.79]. Control experiments with complementary aptamer sequences, IGF2 and IGFBP3 did not show notable signal changes, indicating the specific detection of IGF1. This IONW constructed electrode helps to achieve the detection of low amounts of IGF1 and diagnose AAA at the stage prior to rupture.
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Qiu C, Wang X, Zhang X, Li Z, Zhou Y, Kang J. Sensitive determination of NT-proBNP for diagnosing abdominal aortic aneurysms incidence on interdigitated electrode sensor. Biotechnol Appl Biochem 2020; 68:865-870. [PMID: 32964560 DOI: 10.1002/bab.2006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Accepted: 08/10/2020] [Indexed: 12/18/2022]
Abstract
Abdominal aortic aneurysm (AAA) is a vascular disease found to have progressive growth in the area of aorta. Rupturing of aorta causes excessive bleeding that leads to health-related issues, which can be fatal sometimes. Therefore, it becomes important to make early diagnosis of AAA and its condition and start immediate treatment. Blood-based biomarker helps to diagnose AAA and to monitor the condition after AAA surgery. N-terminal pro-B-type natriuretic peptide (NT-proBNP) is a hormone produced in the heart in small quantities and increased when the heart needs to work harder. NT-proBNP was proved to be strongly linked with AAA incidence. Moreover, quantifying the level of NT-proBNP helps to determine the risk factors on cardiovascular system after the surgery. This work is quantifying the NT-proBNP on interdigitated electrode sensor by using NT-proBNP binding aptamer. The detection limit of NT-proBNP was calculated as 1 pg/mL on a linear regression curve [y = 0.2148x + 0.8849; R² = 0.9049]. The linear range with dose-dependent analysis was from 0.01 until 100 ng/mL. Moreover, the control experiment with complementary aptamer sequence did not show the current signal, specifying the detection of NT-proBNP. This research benefits to identify the heart condition of patient after the removal of AAA.
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Affiliation(s)
- Changcheng Qiu
- Department of General Surgery, People's Hospital of Gaomi, Gaomi, Shandong Province, People's Republic of China
| | - Xiao Wang
- Department of Vascular Surgery, Liaocheng People's Hospital, Liaocheng, Shandong Province, People's Republic of China
| | - Xia Zhang
- Department of General Surgery, People's Hospital of Gaomi, Gaomi, Shandong Province, People's Republic of China
| | - Zhenhuan Li
- Department of general surgery, The 5th Hospital of Xi'an, Xi'an, Shaanxi Province, People's Republic of China
| | - Yiming Zhou
- Aviation Medical Office of Air Force Flight Test Bureau, Xi'an, Shaanxi Province, People's Republic of China
| | - Jie Kang
- Department of Vascular Surgery, Liaocheng People's Hospital, Liaocheng, Shandong Province, People's Republic of China
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Huang Y, Zhang L, Li Z, Gopinath SCB, Chen Y, Xiao Y. Aptamer–17β‐estradiol–antibody sandwich ELISA for determination of gynecological endocrine function. Biotechnol Appl Biochem 2020; 68:881-888. [DOI: 10.1002/bab.2008] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 08/06/2020] [Indexed: 12/24/2022]
Affiliation(s)
- Yue Huang
- Department of Second Gynecology Cangzhou Central Hospital Cangzhou Hebei Province People's Republic of China
| | - Li Zhang
- Department of Endocrinology The Fourth People's Hospital of Jinan City Tianqiao District Jinan Shandong Province People's Republic of China
| | - Zhenzuo Li
- Department of Endocrinology The Fourth People's Hospital of Jinan City Tianqiao District Jinan Shandong Province People's Republic of China
| | - Subash C. B. Gopinath
- School of Bioprocess Engineering Universiti Malaysia Perlis Arau Perlis 02600 Malaysia
- Institute of Nano Electronic Engineering Universiti Malaysia Perlis Kangar Perlis 01000 Malaysia
| | - Yeng Chen
- Department of Oral & Craniofacial Sciences Faculty of Dentistry University of Malaya Kuala Lumpur Malaysia
| | - Yan Xiao
- Department of Gynecology Endocrinology Maternal and Child Health Care of Shandong Province Jinan Shandong Province People's Republic of China
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Hatefi-Mehrjardi A, Beheshti-Marnani A, Es′haghi Z. Signal promoting role of a p-type transition metal dichalcogenide used for the detection of ultra-trace amounts of diclofenac via a labeled aptasensor. Front Chem Sci Eng 2019. [DOI: 10.1007/s11705-019-1797-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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Ehzari H, Safari M, Shahlaei M. A simple and label-free genosensor for BRCA1 related sequence based on electrospinned ribbon conductive nanofibers. Microchem J 2018. [DOI: 10.1016/j.microc.2018.07.033] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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9
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Designing an electrochemical aptasensor based on immobilization of the aptamer onto nanocomposite for detection of the streptomycin antibiotic. Microchem J 2018. [DOI: 10.1016/j.microc.2018.05.016] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Sedighian H, Halabian R, Amani J, Heiat M, Taheri RA, Imani Fooladi AA. Manufacturing of a novel double-function ssDNA aptamer for sensitive diagnosis and efficient neutralization of SEA. Anal Biochem 2018; 548:69-77. [PMID: 29496467 DOI: 10.1016/j.ab.2018.02.017] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2017] [Revised: 02/19/2018] [Accepted: 02/20/2018] [Indexed: 10/17/2022]
Abstract
Staphylococcal enterotoxin A (SEA) is an enterotoxin produced mainly by Staphylococcus aureus. In recent years, it has become the most prevalent compound for staphylococcal food poisoning (SFP) around the world. In this study, we isolate new dual-function single-stranded DNA (ssDNA) aptamers by using some new methods, such as the Taguchi method, by focusing on the detection and neutralization of SEA enterotoxin in food and clinical samples. For the asymmetric polymerase chain reaction (PCR) optimization of each round of systematic evolution of ligands by exponential enrichment (SELEX), we use Taguchi L9 orthogonal arrays, and the aptamer mobility shift assay (AMSA) is used for initial evaluation of the protein-DNA interactions on the last SELEX round. In our investigation the dissociation constant (KD) value and the limit of detection (LOD) of the candidate aptamer were found to be 8.5 ± 0.91 of nM and 5 ng/ml using surface plasmon resonance (SPR). In the current study, the Taguchi and mobility shift assay methods were innovatively harnessed to improve the selection process and evaluate the protein-aptamer interactions. To the best of our knowledge, this is the first report on employing these two methods in aptamer technology especially against bacterial toxin.
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Affiliation(s)
- Hamid Sedighian
- Applied Biotechnology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Raheleh Halabian
- Applied Microbiology Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Jafar Amani
- Applied Microbiology Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Mohammad Heiat
- Applied Biotechnology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Ramezan Ali Taheri
- Nanobiotechnology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Abbas Ali Imani Fooladi
- Applied Microbiology Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran.
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QIN SY, CHEN ND, WANG Q, HUANG J, HE XX, LIU JB, GUO QP, YANG XH, WANG KM. Application of Nucleic Acid Aptamers in Polypeptides Researches. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2017. [DOI: 10.1016/s1872-2040(17)61055-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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12
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Fragkaki AG, Kioukia-Fougia N, Kiousi P, Kioussi M, Tsivou M. Challenges in detecting substances for equine anti-doping. Drug Test Anal 2017; 9:1291-1303. [DOI: 10.1002/dta.2162] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2016] [Revised: 12/19/2016] [Accepted: 01/09/2017] [Indexed: 01/01/2023]
Affiliation(s)
- A. G. Fragkaki
- Doping Control Laboratory of Athens; Olympic Athletic Center of Athens ‘Spyros Louis’; 37 Kifisias Avenue 15123 Maroussi Greece
| | - N. Kioukia-Fougia
- Doping Control Laboratory of Athens; Olympic Athletic Center of Athens ‘Spyros Louis’; 37 Kifisias Avenue 15123 Maroussi Greece
| | - P. Kiousi
- Doping Control Laboratory of Athens; Olympic Athletic Center of Athens ‘Spyros Louis’; 37 Kifisias Avenue 15123 Maroussi Greece
| | - M. Kioussi
- Laboratory of Pesticides Residues, Department of Pesticides Control and Phytopharmacy; Benaki Phytopathological Institute; 8 St. Delta str., 14561 Kifissia Athens Greece
- Laboratory of Analytical Chemistry, Department of Chemistry; University of Athens; 15771 Panepistimiopolis-Zographou Athens Greece
| | - M. Tsivou
- Doping Control Laboratory of Athens; Olympic Athletic Center of Athens ‘Spyros Louis’; 37 Kifisias Avenue 15123 Maroussi Greece
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Richards SL, Cawley AT, Cavicchioli R, Suann CJ, Pickford R, Raftery MJ. Aptamer based peptide enrichment for quantitative analysis of gonadotropin-releasing hormone by LC-MS/MS. Talanta 2016; 150:671-80. [PMID: 26838458 DOI: 10.1016/j.talanta.2016.01.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Revised: 01/06/2016] [Accepted: 01/06/2016] [Indexed: 12/13/2022]
Abstract
Over recent years threats to racing have expanded to include naturally occurring biological molecules, such as peptides and proteins, and their synthetic analogues. Traditionally, antibodies have been used to enable detection of these compounds as they allow purification and concentration of the analyte of interest. The rapid expansion of peptide-based therapeutics necessitates a similarly rapid development of suitable antibodies or other means of enrichment. Potential alternative enrichment strategies include the use of aptamers, which offer the significant advantage of chemical synthesis once the nucleic acid sequence is known. A method was developed for the enrichment, detection and quantitation of gonadotropin-releasing hormone (GnRH) in equine urine using aptamer-based enrichment and LC-MS/MS. The method achieved comparable limits of detection (1 pg/mL) and quantification (2.5 pg/mL) to previously published antibody-based enrichment methods. The intra- and inter-assay precision achieved was less than 10% at both 5 and 20 pg/mL, and displayed a working dynamic range of 2.5-100 pg/mL. Significant matrix enhancement (170 ± 8%) and low analytical recovery (29 ± 15%) was observed, although the use of an isotopically heavy labelled GnRH peptide, GnRH (Pro(13)C5,(15)N), as the internal standard provides compensation for these parameters. Within the current limits of detection GnRH was detectable up to 1h post administration in urine and identification of a urinary catabolite extended this detection window to 4h. Based on the results of this preliminary investigation we propose the use of aptamers as a viable alternative to antibodies in the enrichment of peptide targets from equine urine.
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Affiliation(s)
- S L Richards
- Australian Racing Forensic Laboratory, Racing NSW, Sydney, NSW 2000, Australia; Bioanalytical Mass Spectrometry Facility, UNSW Australia, Sydney, NSW 2052, Australia
| | - A T Cawley
- Australian Racing Forensic Laboratory, Racing NSW, Sydney, NSW 2000, Australia; School of Chemistry, UNSW Australia, Sydney, NSW 2052, Australia
| | - R Cavicchioli
- School of Biotechnology and Biomedical Sciences, UNSW Australia, Sydney, NSW 2052, Australia
| | - C J Suann
- Racing NSW, Sydney, NSW 2000, Australia
| | - R Pickford
- Bioanalytical Mass Spectrometry Facility, UNSW Australia, Sydney, NSW 2052, Australia
| | - M J Raftery
- Bioanalytical Mass Spectrometry Facility, UNSW Australia, Sydney, NSW 2052, Australia
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