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Wang Y, Peng Y, Liu S, Li M, Pei X, Tong Y. CRISPR/Cas12a coupled with loop-mediated isothermal amplification and lateral flow assay for SARS-CoV-2 detection. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024. [PMID: 39158842 DOI: 10.1039/d4ay00757c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/20/2024]
Abstract
Point-of-care testing (POCT) is rapid, exhibits highly sensitive performance, can facilitate home self-testing and avoids cross-contamination. Herein, we developed a biosensor that combines Si-OH magnetic bead (MB)-based fast RNA extraction, reverse transcription-loop-mediated isothermal amplification (RT-LAMP), CRISPR-Cas12a, and lateral flow assay (LFA) for rapid detection of SARS-CoV-2 RNA within 1.5 h. In the presence of the SARS-CoV-2 LAMP amplicon, the trans-cleavage activity of Cas12a was activated to cleave the probe, separating streptavidin from the AuNPs-digoxin (Dig) antibody, resulting in the inability of the test line to capture the AuNPs-Dig antibody. The method can distinguish SARS-CoV-2 from other RNA viruses, with a limit-of-detection (LOD) of 6.2 × 102 copies per mL. Therefore, LAMP-CRISPR-LFA has high specificity and sensitivity and is convenient to develop into commercial assay kits, which could have a broad prospect for practical application.
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Affiliation(s)
- Yuer Wang
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029, China.
| | - Yadan Peng
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029, China.
| | - Sitong Liu
- College of Chemistry and Materials Engineering, Institute of Cosmetic Regulatory Science, Beijing Technology and Business University, Beijing 100048, P. R. China.
| | - Mengzhe Li
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029, China.
| | - Xiaojing Pei
- College of Chemistry and Materials Engineering, Institute of Cosmetic Regulatory Science, Beijing Technology and Business University, Beijing 100048, P. R. China.
| | - Yigang Tong
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029, China.
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2
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Yang R, Han P, Han P, Li D, Zhao R, Niu S, Liu K, Li S, Tian WX, Gao GF. Molecular basis of hippopotamus ACE2 binding to SARS-CoV-2. J Virol 2024; 98:e0045124. [PMID: 38591877 PMCID: PMC11092335 DOI: 10.1128/jvi.00451-24] [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: 03/07/2024] [Accepted: 03/18/2024] [Indexed: 04/10/2024] Open
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has a wide range of hosts, including hippopotami, which are semi-aquatic mammals and phylogenetically closely related to Cetacea. In this study, we characterized the binding properties of hippopotamus angiotensin-converting enzyme 2 (hiACE2) to the spike (S) protein receptor binding domains (RBDs) of the SARS-CoV-2 prototype (PT) and variants of concern (VOCs). Furthermore, the cryo-electron microscopy (cryo-EM) structure of the SARS-CoV-2 PT S protein complexed with hiACE2 was resolved. Structural and mutational analyses revealed that L30 and F83, which are specific to hiACE2, played a crucial role in the hiACE2/SARS-CoV-2 RBD interaction. In addition, comparative and structural analysis of ACE2 orthologs suggested that the cetaceans may have the potential to be infected by SARS-CoV-2. These results provide crucial molecular insights into the susceptibility of hippopotami to SARS-CoV-2 and suggest the potential risk of SARS-CoV-2 VOCs spillover and the necessity for surveillance. IMPORTANCE The hippopotami are the first semi-aquatic artiodactyl mammals wherein SARS-CoV-2 infection has been reported. Exploration of the invasion mechanism of SARS-CoV-2 will provide important information for the surveillance of SARS-CoV-2 in hippopotami, as well as other semi-aquatic mammals and cetaceans. Here, we found that hippopotamus ACE2 (hiACE2) could efficiently bind to the RBDs of the SARS-CoV-2 prototype (PT) and variants of concern (VOCs) and facilitate the transduction of SARS-CoV-2 PT and VOCs pseudoviruses into hiACE2-expressing cells. The cryo-EM structure of the SARS-CoV-2 PT S protein complexed with hiACE2 elucidated a few critical residues in the RBD/hiACE2 interface, especially L30 and F83 of hiACE2 which are unique to hiACE2 and contributed to the decreased binding affinity to PT RBD compared to human ACE2. Our work provides insight into cross-species transmission and highlights the necessity for monitoring host jumps and spillover events on SARS-CoV-2 in semi-aquatic/aquatic mammals.
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Affiliation(s)
- Ruirui Yang
- College of Veterinary Medicine, Shanxi Agricultural University, Jinzhong, China
- CAS Key Laboratory of Pathogen Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences (CAS), Beijing, China
| | - Pu Han
- CAS Key Laboratory of Pathogen Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences (CAS), Beijing, China
| | - Pengcheng Han
- School of Medicine, Zhongda Hospital, Southeast University, Nanjing, China
| | - Dedong Li
- CAS Key Laboratory of Pathogen Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences (CAS), Beijing, China
- College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Runchu Zhao
- CAS Key Laboratory of Pathogen Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences (CAS), Beijing, China
- Institute of Physical Science and Information Technology, Anhui University, Hefei, China
| | - Sheng Niu
- College of Veterinary Medicine, Shanxi Agricultural University, Jinzhong, China
| | - Kefang Liu
- CAS Key Laboratory of Pathogen Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences (CAS), Beijing, China
| | - Shihua Li
- CAS Key Laboratory of Pathogen Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences (CAS), Beijing, China
| | - Wen-Xia Tian
- College of Veterinary Medicine, Shanxi Agricultural University, Jinzhong, China
| | - George Fu Gao
- College of Veterinary Medicine, Shanxi Agricultural University, Jinzhong, China
- CAS Key Laboratory of Pathogen Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences (CAS), Beijing, China
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3
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Zhang Z, Liu T, Dong M, Ahamed MA, Guan W. Sample-to-answer salivary miRNA testing: New frontiers in point-of-care diagnostic technologies. WILEY INTERDISCIPLINARY REVIEWS. NANOMEDICINE AND NANOBIOTECHNOLOGY 2024; 16:e1969. [PMID: 38783564 PMCID: PMC11141732 DOI: 10.1002/wnan.1969] [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: 12/22/2023] [Revised: 03/10/2024] [Accepted: 05/02/2024] [Indexed: 05/25/2024]
Abstract
MicroRNA (miRNA), crucial non-coding RNAs, have emerged as key biomarkers in molecular diagnostics, prognosis, and personalized medicine due to their significant role in gene expression regulation. Salivary miRNA, in particular, stands out for its non-invasive collection method and ease of accessibility, offering promising avenues for the development of point-of-care diagnostics for a spectrum of diseases, including cancer, neurodegenerative disorders, and infectious diseases. Such development promises rapid and precise diagnosis, enabling timely treatment. Despite significant advancements in salivary miRNA-based testing, challenges persist in the quantification, multiplexing, sensitivity, and specificity, particularly for miRNA at low concentrations in complex biological mixtures. This work delves into these challenges, focusing on the development and application of salivary miRNA tests for point-of-care use. We explore the biogenesis of salivary miRNA and analyze their quantitative expression and their disease relevance in cancer, infection, and neurodegenerative disorders. We also examined recent progress in miRNA extraction, amplification, and multiplexed detection methods. This study offers a comprehensive view of the development of salivary miRNA-based point-of-care testing (POCT). Its successful advancement could revolutionize the early detection, monitoring, and management of various conditions, enhancing healthcare outcomes. This article is categorized under: Diagnostic Tools > Biosensing Diagnostic Tools > Diagnostic Nanodevices.
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Affiliation(s)
- Zhikun Zhang
- Department of Electrical Engineering, Pennsylvania State University, University Park 16802, USA
- Department of Biomedical Engineering, Pennsylvania State University, University Park 16802, USA
| | - Tianyi Liu
- Department of Electrical Engineering, Pennsylvania State University, University Park 16802, USA
| | - Ming Dong
- Department of Electrical Engineering, Pennsylvania State University, University Park 16802, USA
| | - Md. Ahasan Ahamed
- Department of Electrical Engineering, Pennsylvania State University, University Park 16802, USA
| | - Weihua Guan
- Department of Electrical Engineering, Pennsylvania State University, University Park 16802, USA
- Department of Biomedical Engineering, Pennsylvania State University, University Park 16802, USA
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4
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Dong M, Kshirsagar A, Politza AJ, Guan W. High Fidelity Machine-Learning-Assisted False Positive Discrimination in Loop-Mediated Isothermal Amplification Using Nanopore-Based Sizing and Counting. ACS NANO 2024; 18:7170-7179. [PMID: 38393338 PMCID: PMC11197460 DOI: 10.1021/acsnano.3c12053] [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] [Indexed: 02/25/2024]
Abstract
Loop-mediated isothermal amplification (LAMP) is a rapid, sensitive, and cost-effective method for developing point-of-care nucleic acid testing due to its isothermal nature. Yet, LAMP can suffer from the issue of false positives, which can compromise the specificity of the results. LAMP false positives typically arise due to contamination, nonspecific amplification, and nonspecific signal reporting (intercalating dyes, colorimetric, turbidity, etc.). While dye-labeled primers or probes have been introduced for multiplexed detection and enhanced specificity in LAMP assays, they carry the risk of reaction inhibition. This inhibition can result from the labeled primers with fluorophores or quenchers and probes that do not fully dissociate during reaction. This work demonstrated a nanopore-based system for probe-free LAMP readouts by employing amplicon sizing and counting, analogous to an electronic version of gel electrophoresis. We first developed a model to explore LAMP kinetics and verified distinct patterns between true and false positives via gel electrophoresis. Subsequently, we implemented nanopore sized counting and calibrated the event charge deficit (ECD) values and frequencies to ensure a fair analysis of amplicon profiles. This sized counting method, integrated with machine learning, achieved 91.67% accuracy for false positive discrimination, enhancing LAMP's reliability for nucleic acid detection.
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Affiliation(s)
- Ming Dong
- Department of Electrical Engineering, Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Aneesh Kshirsagar
- Department of Electrical Engineering, Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Anthony J. Politza
- Department of Biomedical Engineering, Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Weihua Guan
- Department of Electrical Engineering, Pennsylvania State University, University Park, Pennsylvania 16802, United States
- Department of Biomedical Engineering, Pennsylvania State University, University Park, Pennsylvania 16802, United States
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5
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Li Y, Zhang X, Liao Y, Shi C, Wang Y, Mu X, Xie Y, Ma C. Engineering of a Chimeric Template Triggers RNase H-Based Isothermal Amplification Approach for Sensitive Detection of Pathogen RNA. Anal Chem 2023; 95:18249-18257. [PMID: 38041626 DOI: 10.1021/acs.analchem.3c04098] [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: 12/03/2023]
Abstract
RNA-based detection of pathogenic organisms is an emerging field of research that is crucial for disease diagnosis and environmental and food safety. By rationally engineering an RNA-DNA tandem (RDT) structural template, we proposed a novel RNase H-based isothermal exponential amplification (RH-IEA) reaction to rapidly identify long-stranded RNA. In this strategy, the rigid and compact RDT template selectively recognized the target RNA and formed a stable hybrid with it. Upon site-specific cleavage of RNase H, the 3' overhang of the target RNA was cut off, and a free hydroxyl end at the hydrolysis site was generated to trigger an exponential amplification reaction (EXPAR). This method maintained the high efficiency and rapid amplification kinetics of EXPAR. As a result, the RH-IEA strategy was able to sensitively and specifically detect the characteristic sequence of Escherichia coli O157:H7 RNA, with a detection sensitivity of 1 fg/μL. Besides, the RDT template can be used as an RNA protector to prevent specific segments of the target RNA from being degraded by RNase enzymes, allowing the sample to be stored at room temperature for a long time. With this advantage, the practicality of RH-IEA will be more flexible than the reverse transcription polymerase chain reaction. It was successfully applied in the identification of E. coli O157:H7 in milk with a minimum detection concentration of 1.0 × 102 CFU/mL. Therefore, the RH-IEA method will serve as a powerful tool for detecting long-stranded RNA and will also shed light on the pathogen detection in food safety and molecular diagnosis.
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Affiliation(s)
- Yong Li
- Shandong Provincial Key Laboratory of Biochemical Engineering, Qingdao Nucleic Acid Rapid Detection Engineering Research Center, Qingdao Key Laboratory of Nucleic Acid Rapid Detection, Sino-UAE International Cooperative Joint Laboratory of Pathogenic Microorganism Rapid Detection, College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Xin Zhang
- Shandong Provincial Key Laboratory of Biochemical Engineering, Qingdao Nucleic Acid Rapid Detection Engineering Research Center, Qingdao Key Laboratory of Nucleic Acid Rapid Detection, Sino-UAE International Cooperative Joint Laboratory of Pathogenic Microorganism Rapid Detection, College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Yu Liao
- Shandong Provincial Key Laboratory of Biochemical Engineering, Qingdao Nucleic Acid Rapid Detection Engineering Research Center, Qingdao Key Laboratory of Nucleic Acid Rapid Detection, Sino-UAE International Cooperative Joint Laboratory of Pathogenic Microorganism Rapid Detection, College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Chao Shi
- Qingdao Navid Biotechnology Co., Ltd, Qingdao JianMa Gene Technology Co., Ltd, Qingdao Nucleic Acid Rapid Testing International Science and Technology Cooperation Base, the Affiliated Hospital of Qingdao University, College of Life Sciences, Qingdao University, Qingdao 266071, China
| | - Ye Wang
- Clinical Laboratory, Qingdao Central Hospital, The Second Affiliated Hospital of Medical College of Qingdao University, Qingdao 266042, China
| | - Xiaofeng Mu
- Clinical Laboratory, Qingdao Central Hospital, The Second Affiliated Hospital of Medical College of Qingdao University, Qingdao 266042, China
| | - Yingqiu Xie
- Department of Biology, School of Sciences and Humanities, Nazarbayev University, Astana 010000, Kazakhstan
| | - Cuiping Ma
- Shandong Provincial Key Laboratory of Biochemical Engineering, Qingdao Nucleic Acid Rapid Detection Engineering Research Center, Qingdao Key Laboratory of Nucleic Acid Rapid Detection, Sino-UAE International Cooperative Joint Laboratory of Pathogenic Microorganism Rapid Detection, College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
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Yin YD, Chen FF, Hu J, Yang L, Song XT, Wu GR, Xu M, Gu ZY. Solid-State Nanopore Distinguishes Ferritin and Apo-Ferritin with Identical Exteriors through Amplified Flexibility at Single-Molecule Level. Anal Chem 2023; 95:16496-16504. [PMID: 37916987 DOI: 10.1021/acs.analchem.3c02041] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2023]
Abstract
Protein identification and discrimination at the single-molecule level are big challenges. Solid-state nanopores as a sensitive biosensor have been used for protein analysis, although it is difficult to discriminate proteins with similar structures in the traditional discrimination method based on the current blockage fraction. Here, we select ferritin and apo-ferritin as the model proteins that exhibit identical exterior and different interior structures and verify the practicability of their discrimination with flexibility features by the strategy of gradually decreasing the nanopore size. We show that the larger nanopore (relative to the protein size) has no obvious effect on discriminating two proteins. Then, the comparable-sized nanopore plays a key role in discriminating two proteins based on the dwell time and fraction distribution, and the conformational changes of both proteins are also studied with this nanopore. Finally, in the smaller nanopore, the protein molecules are trapped rather than translocated, where two proteins are obviously discriminated through the current fluctuation caused by the vibration of proteins. This strategy has potential in the discrimination of other important similar proteins.
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Affiliation(s)
- Yun-Dong Yin
- Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Fang-Fang Chen
- Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Jun Hu
- Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Lei Yang
- Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Xi-Tong Song
- Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Guo-Rong Wu
- Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Ming Xu
- Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Zhi-Yuan Gu
- Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
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7
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Kaladharan K, Chen KH, Chen PH, Goudar VS, Ishdorj TO, Santra TS, Tseng FG. Dual-clamped One-Pot SERS-based Biosensors for Rapid and Sensitive Detection of SARS-CoV-2 Using Portable Raman Spectrometer. SENSORS AND ACTUATORS. B, CHEMICAL 2023; 393:134172. [PMID: 37363301 PMCID: PMC10276524 DOI: 10.1016/j.snb.2023.134172] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Revised: 05/20/2023] [Accepted: 06/16/2023] [Indexed: 06/28/2023]
Abstract
Rapid and sensitive diagnostics of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is of utmost importance to control the widespread coronavirus disease 2019 (COVID-19) upsurge. This study demonstrated a novel one-pot surface-enhanced Raman scattering (SERS) based immunoassay to detect SARS-CoV-2, without any washing process using a portable Raman spectrometer. The SERS-immune assay was designed using a regular digital versatile disk (DVD) substrate integrated with Raman reporter labeled silver nanoparticles for double clamping effects. The disks were molded to form nanopillar arrays and coated with silver film to enhance the sensitivity of immunoassay. The SERS platform demonstrated a limit of detection (LoD) up to 50 pg mL-1 for SARS-CoV-2 spike protein and virus-like-particle (VLP) protein in phosphate buffer saline within a turnaround time of 20 minutes. Moreover, VLP protein spiked in untreated saliva achieved an LoD of 400 pg mL-1, providing a cycle threshold (Ct) value range of 30-32, closer to reverse transcription-polymerase chain reaction (RT-PCR) results (35-40) and higher than the commercial rapid antigen tests, ranging from 25-28. Therefore, the developed one-pot SERS based biosensor exhibited highly sensitive and rapid detection of SARS-CoV-2, which could be a potential point-of-care platform for early and cost-effective diagnosis of the COVID-19 virus.
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Affiliation(s)
- Kiran Kaladharan
- Department of Engineering and System Science, National Tsing Hua University, Taiwan ROC
| | - Kuan-Hung Chen
- Department of Engineering and System Science, National Tsing Hua University, Taiwan ROC
| | - Pin-Han Chen
- Department of Engineering and System Science, National Tsing Hua University, Taiwan ROC
| | - Venkanagouda S Goudar
- Department of Engineering and System Science, National Tsing Hua University, Taiwan ROC
| | - Tseren-Onolt Ishdorj
- School of Information and Communication Technology, Mongolian University of Science and Technology, Mongolia
| | - Tuhin Subhra Santra
- Department of Engineering Design, Indian Institute of Technology Madras, India
| | - Fan-Gang Tseng
- Department of Engineering and System Science, National Tsing Hua University, Taiwan ROC
- Institute of Nano Engineering and Microsystems, National Tsing Hua University, Taiwan ROC
- Department of Chemistry, National Tsing Hua University, Taiwan ROC
- Frontier Research Centre on Fundamental and Applied Sciences of Matters, National Tsing Hua, University, Taiwan, ROC
- Research Centre for Applied Sciences, Academia Sinica, Taipei, Taiwan ROC
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8
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Chen X, Zhou S, Wang Y, Zheng L, Guan S, Wang D, Wang L, Guan X. Nanopore Single-molecule Analysis of Biomarkers: Providing Possible Clues to Disease Diagnosis. Trends Analyt Chem 2023; 162:117060. [PMID: 38106545 PMCID: PMC10722900 DOI: 10.1016/j.trac.2023.117060] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2023]
Abstract
Biomarker detection has attracted increasing interest in recent years due to the minimally or non-invasive sampling process. Single entity analysis of biomarkers is expected to provide real-time and accurate biological information for early disease diagnosis and prognosis, which is critical to the effective disease treatment and is also important in personalized medicine. As an innovative single entity analysis method, nanopore sensing is a pioneering single-molecule detection technique that is widely used in analytical bioanalytical fields. In this review, we overview the recent progress of nanopore biomarker detection as new approaches to disease diagnosis. In highlighted studies, nanopore was focusing on detecting biomarkers of different categories of communicable and noncommunicable diseases, such as pandemic Covid-19, AIDS, cancers, neurologic diseases, etc. Various sensitive and selective nanopore detecting strategies for different types of biomarkers are summarized. In addition, the challenges, opportunities, and direction for future development of nanopore-based biomarker sensors are also discussed.
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Affiliation(s)
- Xiaohan Chen
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, China
- Chongqing School, University of Chinese Academy of Science, Chongqing, 400714, China
| | - Shuo Zhou
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, China
- Chongqing School, University of Chinese Academy of Science, Chongqing, 400714, China
| | - Yunjiao Wang
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, China
- Chongqing School, University of Chinese Academy of Science, Chongqing, 400714, China
| | - Ling Zheng
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, China
- Chongqing School, University of Chinese Academy of Science, Chongqing, 400714, China
- School of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing 400054, China
| | - Sarah Guan
- Hinsdale Central High School, Hinsdale, IL 60521, USA
| | - Deqiang Wang
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, China
- Chongqing School, University of Chinese Academy of Science, Chongqing, 400714, China
| | - Liang Wang
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, China
- Chongqing School, University of Chinese Academy of Science, Chongqing, 400714, China
- Chongqing Key Laboratory of Intelligent Medicine Engineering for Hepatopancreatobiliary Diseases, University of Chinese Academy of Sciences, Chongqing 401147, China
| | - Xiyun Guan
- Department of Chemistry, Illinois Institute of Technology, Chicago, IL, 60616, USA
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9
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Li H, Li Y, Gui C, Chen D, Chen L, Luo L, Huang G, Yuan Y, He R, Xia F, Wang J. Bare glassy nanopore for length-resolution reading of PCR amplicons from various pathogenic bacteria and viruses. Talanta 2023; 256:124275. [PMID: 36701856 DOI: 10.1016/j.talanta.2023.124275] [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: 10/01/2022] [Revised: 11/16/2022] [Accepted: 01/14/2023] [Indexed: 01/18/2023]
Abstract
In this study, it is confirmed that without addition of organic solvent and embedding polymer hydrogel into glass nanopore, bare glass nanopore can faithfully measure various lengths of DNA duplexes from 200 to 3000 base pairs with 200 base pairs resolution, showing well-separated peak amplitudes of blockage currents. Furthermore, motivated by this readout capability of duplex DNA, amplicons from Polymerase Chain Reaction (PCR) amplification are straightforwardly discriminated by bare glassy nanopore without fluorescent labeling. Except simultaneous discrimination of up to 7 different segments of the same lambda genome, various pathogenic bacteria and viruses including SARS-CoV-2 and its mutants in clinical samples can be discriminated at high resolution. Moreover, quantitative measurement of PCR amplicons is obtained with detection range spanning from 0.75 aM to 7.5 pM and detection limit of 7.5 aM, which reveals that bare glass nanopore can faithfully disclose PCR results without any extra labeling.
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Affiliation(s)
- Huizhen Li
- School of Chemistry and Chemical Engineering, School of Mechanical and Electrical Engineering, Guangzhou University, Guangzhou, Guangdong, 510006, China
| | - Yunhui Li
- School of Chemistry and Chemical Engineering, School of Mechanical and Electrical Engineering, Guangzhou University, Guangzhou, Guangdong, 510006, China
| | - Cenlin Gui
- School of Chemistry and Chemical Engineering, School of Mechanical and Electrical Engineering, Guangzhou University, Guangzhou, Guangdong, 510006, China
| | - Daqi Chen
- School of Chemistry and Chemical Engineering, School of Mechanical and Electrical Engineering, Guangzhou University, Guangzhou, Guangdong, 510006, China
| | - Lanfang Chen
- School of Chemistry and Chemical Engineering, School of Mechanical and Electrical Engineering, Guangzhou University, Guangzhou, Guangdong, 510006, China
| | - Le Luo
- School of Chemistry and Chemical Engineering, School of Mechanical and Electrical Engineering, Guangzhou University, Guangzhou, Guangdong, 510006, China
| | - Guobao Huang
- Guangxi Key Laboratory of Agricultural Resources Chemistry and Biotechnology, College of Chemistry and Food Science, Yulin Normal University, Yulin, Guangxi, 537000, China
| | - Yang Yuan
- School of Chemistry and Chemical Engineering, School of Mechanical and Electrical Engineering, Guangzhou University, Guangzhou, Guangdong, 510006, China
| | - Rong He
- Guangzhou Center for Disease Control and Prevention, Guangzhou, Guangdong, 510440, China.
| | - Fan Xia
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, Hubei, 430074, China.
| | - Jiahai Wang
- School of Chemistry and Chemical Engineering, School of Mechanical and Electrical Engineering, Guangzhou University, Guangzhou, Guangdong, 510006, China.
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10
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Li M, Ge H, Sun Z, Fu J, Cao L, Feng X, Meng G, Peng Y, Liu Y, Zhao C. A loop-mediated isothermal amplification-enabled analytical assay for the detection of SARS-CoV-2: A review. Front Cell Infect Microbiol 2022; 12:1068015. [PMID: 36619749 PMCID: PMC9816412 DOI: 10.3389/fcimb.2022.1068015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Accepted: 11/29/2022] [Indexed: 12/24/2022] Open
Abstract
The number of words: 4645, the number of figures: 4, the number of tables: 1The outbreak of COVID-19 in December 2019 caused a global pandemic of acute respiratory disease, and with the increasing virulence of mutant strains and the number of confirmed cases, this has resulted in a tremendous threat to global public health. Therefore, an accurate diagnosis of COVID-19 is urgently needed for rapid control of SARS-CoV-2 transmission. As a new molecular biology technology, loop-mediated isothermal amplification (LAMP) has the advantages of convenient operation, speed, low cost and high sensitivity and specificity. In the past two years, rampant COVID-19 and the continuous variation in the virus strains have demanded higher requirements for the rapid detection of pathogens. Compared with conventional RT-PCR and real-time RT-PCR methods, genotyping RT-LAMP method and LAMP plus peptide nucleic acid (PNA) probe detection methods have been developed to correctly identified SARS-CoV-2 variants, which is also why LAMP technology has attracted much attention. LAMP detection technology combined with lateral flow assay, microfluidic technology and other sensing technologies can effectively enhance signals by nucleic acid amplification and help to give the resulting output in a faster, more convenient and user-friendly way. At present, LAMP plays an important role in the detection of SARS-CoV-2.
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Affiliation(s)
- Mingna Li
- College of public health, Jilin Medical University, Jilin, China,College of medical technology, Beihua University, Jilin, China
| | - Hongjuan Ge
- College of public health, Jilin Medical University, Jilin, China
| | - Zhe Sun
- College of public health, Jilin Medical University, Jilin, China,College of medical technology, Beihua University, Jilin, China
| | - Jangshan Fu
- College of public health, Jilin Medical University, Jilin, China
| | - Lele Cao
- College of public health, Jilin Medical University, Jilin, China
| | - Xinrui Feng
- College of public health, Jilin Medical University, Jilin, China,Medical college, Yanbian University, Jilin, China
| | - Guixian Meng
- College of medical laboratory, Jilin Medical University, Jilin, China
| | - Yubo Peng
- Business School, The University of Adelaide, Adelaide, SA, Australia
| | - Yan Liu
- College of public health, Jilin Medical University, Jilin, China,*Correspondence: Yan Liu, ; Chen Zhao,
| | - Chen Zhao
- College of public health, Jilin Medical University, Jilin, China,*Correspondence: Yan Liu, ; Chen Zhao,
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11
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Ortiz-Cartagena C, Fernández-García L, Blasco L, Pacios O, Bleriot I, López M, Cantón R, Tomás M. Reverse Transcription-Loop-Mediated Isothermal Amplification-CRISPR-Cas13a Technology as a Promising Diagnostic Tool for SARS-CoV-2. Microbiol Spectr 2022; 10:e0239822. [PMID: 36169448 PMCID: PMC9604158 DOI: 10.1128/spectrum.02398-22] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 09/07/2022] [Indexed: 01/04/2023] Open
Abstract
At the end of 2019, a new coronavirus, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), caused a pandemic that persists to date and has resulted in more than 6.2 million deaths. In the last couple of years, researchers have made great efforts to develop a diagnostic technique that maintains high levels of sensitivity and specificity, since an accurate and early diagnosis is required to minimize the prevalence of SARS-CoV-2 infection. In this context, CRISPR-Cas systems are proposed as promising tools for development as diagnostic techniques due to their high specificity, highlighting that Cas13 endonuclease discriminates single nucleotide changes and displays collateral activity against single-stranded RNA molecules. With the aim of improving the sensitivity of diagnosis, this technology is usually combined with isothermal preamplification reactions (SHERLOCK, DETECTR). Based on this, we developed a reverse transcription-loop-mediated isothermal amplification (RT-LAMP)-CRISPR-Cas13a method for SARS-CoV-2 virus detection in nasopharyngeal samples without using RNA extraction that exhibits 100% specificity and 83% sensitivity, as well as a positive predictive value (PPV) of 100% and negative predictive values (NPVs) of 100%, 81%, 79.1%, and 66.7% for cycle threshold (CT) values of <20, 20 to 30, >30 and overall, respectively. IMPORTANCE The coronavirus disease 2019 (COVID-19) crisis has driven the development of innovative molecular diagnosis methods, including CRISPR-Cas technology. In this work, we performed a protocol, working with RNA extraction kit-free samples and using RT-LAMP-CRISPR-Cas13a technology; our results place this method at the forefront of rapid and specific diagnostic methods for COVID-19 due to the high specificity (100%), sensitivity (83%), PPVs (100%), and NPVs (81% for high viral loads) obtained with clinical samples.
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Affiliation(s)
- Concha Ortiz-Cartagena
- Translational and Multidisciplinary Microbiology (MicroTM), Biomedical Research Institute A Coruña (INIBIC), Microbiology Department, Hospital A Coruña (CHUAC), University of A Coruña (UDC), A Coruña, Spain
| | - Laura Fernández-García
- Translational and Multidisciplinary Microbiology (MicroTM), Biomedical Research Institute A Coruña (INIBIC), Microbiology Department, Hospital A Coruña (CHUAC), University of A Coruña (UDC), A Coruña, Spain
| | - Lucia Blasco
- Translational and Multidisciplinary Microbiology (MicroTM), Biomedical Research Institute A Coruña (INIBIC), Microbiology Department, Hospital A Coruña (CHUAC), University of A Coruña (UDC), A Coruña, Spain
| | - Olga Pacios
- Translational and Multidisciplinary Microbiology (MicroTM), Biomedical Research Institute A Coruña (INIBIC), Microbiology Department, Hospital A Coruña (CHUAC), University of A Coruña (UDC), A Coruña, Spain
| | - Inés Bleriot
- Translational and Multidisciplinary Microbiology (MicroTM), Biomedical Research Institute A Coruña (INIBIC), Microbiology Department, Hospital A Coruña (CHUAC), University of A Coruña (UDC), A Coruña, Spain
| | - María López
- Translational and Multidisciplinary Microbiology (MicroTM), Biomedical Research Institute A Coruña (INIBIC), Microbiology Department, Hospital A Coruña (CHUAC), University of A Coruña (UDC), A Coruña, Spain
- Spanish Network for Research in Infectious Diseases (REIPI) and CIBER de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, Madrid, Spain
| | - Rafael Cantón
- Spanish Network for Research in Infectious Diseases (REIPI) and CIBER de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, Madrid, Spain
- Servicio de Microbiología, Hospital Universitario Ramón y Cajal and Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid, Spain
| | - María Tomás
- Translational and Multidisciplinary Microbiology (MicroTM), Biomedical Research Institute A Coruña (INIBIC), Microbiology Department, Hospital A Coruña (CHUAC), University of A Coruña (UDC), A Coruña, Spain
- Spanish Network for Research in Infectious Diseases (REIPI) and CIBER de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, Madrid, Spain
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12
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Islam A, Haider F, Ahmmed Aoni R, Ahmed R. Plasmonic photonic biosensor: in situ detection and quantification of SARS-CoV-2 particles. OPTICS EXPRESS 2022; 30:40277-40291. [PMID: 36298963 DOI: 10.1364/oe.469937] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Accepted: 10/03/2022] [Indexed: 06/16/2023]
Abstract
We conceptualized and numerically investigated a photonic crystal fiber (PCF)-based surface plasmon resonance (SPR) sensor for rapid detection and quantification of novel coronavirus. The plasmonic gold-based optical sensor permits three different ways to quantify the virus concentrations inside patient's body based on different ligand-analyte conjugate pairs. This photonic biosensor demonstrates viable detections of SARS-CoV-2 spike receptor-binding-domain (RBD), mutated viral single-stranded ribonucleic acid (RNA) and human monoclonal antibody immunoglobulin G (IgG). A marquise-shaped core is introduced to facilitate efficient light-tailoring. Analytes are dissolved in sterile phosphate buffered saline (PBS) and surfaced on the plasmonic metal layer for realizing detection. The 1-pyrene butyric acid n-hydroxy-succinimide ester is numerically used to immobilize the analytes on the sensing interface. Using the finite element method (FEM), the proposed sensor is studied critically and optimized for the refractive index (RI) range from 1.3348-1.3576, since the target analytes RIs fluctuate within this range depending on the severity of the viral infection. The polarization-dependent sensor exhibits dominant sensing attributes for x-polarized mode, where it shows the average wavelength sensitivities of 2,009 nm/RIU, 2,745 nm/RIU and 1,984 nm/RIU for analytes: spike RBD, extracted coronavirus RNA and antibody IgG, respectively. The corresponding median amplitude sensitivities are 135 RIU-1, 196 RIU-1 and 140 RIU-1, respectively. The maximum sensor resolution and figure of merit are found 2.53 × 10-5 RIU and 101 RIU-1, respectively for viral RNA detection. Also, a significant limit of detection (LOD) of 6.42 × 10-9 RIU2/nm is obtained. Considering modern bioassays, the proposed compact photonic sensor will be well-suited for rapid point-of-care COVID testing.
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13
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Shirvaliloo M, Sheervalilou R, Ahmadpour E, Safiri S, Bannazadeh Baghi H. Diagnostic accuracy of clinically applied nanoparticle-based biosensors at detecting SARS-CoV-2 RNA and surface proteins in pharyngeal swabs compared to RT-PCR as a reference test. Expert Rev Mol Diagn 2022; 22:881-894. [PMID: 36224104 DOI: 10.1080/14737159.2022.2135434] [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: 01/06/2023]
Abstract
INTRODUCTION Nanoparticle-based biosensors (NPBs) are point-of-care diagnostic platforms that can be used for detection of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) with high accuracy. AREAS COVERED EBSCOhost Web, Embase, ProQuest, PubMed/MEDLINE, Scopus, Web of Science, and WHO Global Literature on Coronavirus Disease 2019 (COVID-19) were searched for relevant records published from 1 November 2019 to 30 April 2022. Records reporting original data on the accuracy of clinically applied nanoparticle-based biosensors at detecting SARS-CoV-2 RNA and surface proteins from pharyngeal swab specimens were considered. Findings were reported based on the PRISMA 2020 statement. The QUADAS-2 tool was used for assessment of quality and risk of bias among the included studies. EXPERT OPINION A total of 50 relevant records were identified, of which 13 were included. The included studies explored the diagnostic performance of 13 clinically applied distinct nanoparticle-based biosensors in a total of 789 pharyngeal swabs collected from 376 COVID-19 patients and 413 otherwise healthy individuals. The mean sensitivity, specificity, and accuracy were 97.07%, 94.43%, and 96.91%, respectively, in comparison to RT-qPCR as the reference test. Considering their ease-of-operation, portability, low-cost manufacturing, NPBs could be considered suitable candidate diagnostic platforms for substituting RT-qPCR.
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Affiliation(s)
- Milad Shirvaliloo
- Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Future Science Group, Unitec House, 2 Albert Place, London, N3 1QB, UK
| | | | - Ehsan Ahmadpour
- Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Parasitology and Mycology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Saeid Safiri
- Neurosciences Research Center, Aging Research Institute, Tabriz University of Medical Sciences, Tabriz, Iran.,Tuberculosis and Lung Disease Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hossein Bannazadeh Baghi
- Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Microbiology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
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14
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Tang Z, Cui J, Kshirsagar A, Liu T, Yon M, Kuchipudi SV, Guan W. SLIDE: Saliva-Based SARS-CoV-2 Self-Testing with RT-LAMP in a Mobile Device. ACS Sens 2022; 7:2370-2378. [PMID: 35920555 PMCID: PMC9364980 DOI: 10.1021/acssensors.2c01023] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Accepted: 07/14/2022] [Indexed: 12/14/2022]
Abstract
Regular, accurate, rapid, and inexpensive self-testing for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is urgently needed to quell pandemic propagation. The existing at-home nucleic acid testing (NAT) test has high sensitivity and specificity, but it requires users to mail the sample to the central lab, which often takes 3-5 days to obtain the results. On the other hand, rapid antigen tests for the SARS-CoV-2 antigen provide a fast sample to answer the test (15 min). However, the sensitivity of antigen tests is 30 to 40% lower than nucleic acid testing, which could miss a significant portion of infected patients. Here, we developed a fully integrated SARS-CoV-2 reverse transcription loop-mediated isothermal amplification (RT-LAMP) device using a self-collected saliva sample. This platform can automatically handle the complexity and can perform the functions, including (1) virus particles' thermal lysis preparation, (2) sample dispensing, (3) target sequence RT-LAMP amplification, (4) real-time detection, and (5) result report and communication. With a turnaround time of less than 45 min, our device achieved the limit of detection (LoD) of 5 copies/μL of the saliva sample, which is comparable with the LoD (6 copies/μL) using FDA-approved quantitative real-time polymerase chain reaction (qRT-PCR) assays with the same heat-lysis saliva sample preparation method. With clinical samples, our platform showed a good agreement with the results from the gold-standard RT-PCR method. These results show that our platform can perform self-administrated SARS-CoV-2 nucleic acid testing by laypersons with noninvasive saliva samples. We believe that our self-testing platform will have an ongoing benefit for COVID-19 control and fighting future pandemics.
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Affiliation(s)
- Zifan Tang
- Department of Electrical Engineering, Pennsylvania State University, University Park 16802, USA
| | - Jiarui Cui
- Department of Electrical Engineering, Pennsylvania State University, University Park 16802, USA
| | - Aneesh Kshirsagar
- Department of Electrical Engineering, Pennsylvania State University, University Park 16802, USA
| | - Tianyi Liu
- Department of Electrical Engineering, Pennsylvania State University, University Park 16802, USA
| | - Michele Yon
- Animal Diagnostic Laboratory, Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Suresh V. Kuchipudi
- Animal Diagnostic Laboratory, Pennsylvania State University, University Park, Pennsylvania 16802, United States
- Center for Infectious Disease Dynamic, Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Weihua Guan
- Department of Electrical Engineering, Pennsylvania State University, University Park 16802, USA
- Department of Biomedical Engineering, Pennsylvania State University, University Park 16802, USA
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15
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Tanimoto IMF, Cressiot B, Greive SJ, Le Pioufle B, Bacri L, Pelta J. Focus on using nanopore technology for societal health, environmental, and energy challenges. NANO RESEARCH 2022; 15:9906-9920. [PMID: 35610982 PMCID: PMC9120803 DOI: 10.1007/s12274-022-4379-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 03/11/2022] [Accepted: 03/30/2022] [Indexed: 06/15/2023]
Abstract
With an increasing global population that is rapidly ageing, our society faces challenges that impact health, environment, and energy demand. With this ageing comes an accumulation of cellular changes that lead to the development of diseases and susceptibility to infections. This impacts not only the health system, but also the global economy. As the population increases, so does the demand for energy and the emission of pollutants, leading to a progressive degradation of our environment. This in turn impacts health through reduced access to arable land, clean water, and breathable air. New monitoring approaches to assist in environmental control and minimize the impact on health are urgently needed, leading to the development of new sensor technologies that are highly sensitive, rapid, and low-cost. Nanopore sensing is a new technology that helps to meet this purpose, with the potential to provide rapid point-of-care medical diagnosis, real-time on-site pollutant monitoring systems to manage environmental health, as well as integrated sensors to increase the efficiency and storage capacity of renewable energy sources. In this review we discuss how the powerful approach of nanopore based single-molecule, or particle, electrical promises to overcome existing and emerging societal challenges, providing new opportunities and tools for personalized medicine, localized environmental monitoring, and improved energy production and storage systems.
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Affiliation(s)
- Izadora Mayumi Fujinami Tanimoto
- LAMBE, CNRS, Univ Evry, Université Paris-Saclay, 91025 Evry-Courcouronnes, France
- LuMIn, CNRS, Institut d’Alembert, ENS Paris-Saclay, Université Paris-Saclay, 91190 Gif-sur-Yvette, France
| | | | | | - Bruno Le Pioufle
- LuMIn, CNRS, Institut d’Alembert, ENS Paris-Saclay, Université Paris-Saclay, 91190 Gif-sur-Yvette, France
| | - Laurent Bacri
- LAMBE, CNRS, Univ Evry, Université Paris-Saclay, 91025 Evry-Courcouronnes, France
| | - Juan Pelta
- LAMBE, CNRS, Univ Evry, Université Paris-Saclay, 91025 Evry-Courcouronnes, France
- LAMBE, CNRS, CY Cergy Paris Université, 95000 Cergy, France
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16
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Savonnet M, Aubret M, Laurent P, Roupioz Y, Cubizolles M, Buhot A. Kinetics of Isothermal Dumbbell Exponential Amplification: Effects of Mix Composition on LAMP and Its Derivatives. BIOSENSORS 2022; 12:bios12050346. [PMID: 35624647 PMCID: PMC9138685 DOI: 10.3390/bios12050346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 05/11/2022] [Accepted: 05/13/2022] [Indexed: 11/16/2022]
Abstract
Loop-mediated isothermal amplification (LAMP) is an exponential amplification method of DNA strands that is more and more used for its high performances. Thanks to its high sensitivity and selectivity, LAMP found numerous applications from the detection of pathogens or viruses through their genome amplification to its incorporation as an amplification strategy in protein or miRNA biomarker quantification. The LAMP method is composed of two stages: the first one consists in the transformation of the DNA strands into dumbbell structures formed of two stems and loops thanks to four primers; then, in the second stage, only two primers are required to amplify the dumbbells exponentially in numerous hairpins of increasing lengths. In this paper, we propose a theoretical framework to analyze the kinetics of the second stage of LAMP, the isothermal dumbbell exponential amplification (IDEA) as function of the physico-chemical parameters of the amplification reaction. Dedicated experiments validate the models. We believe these results may help the optimization of LAMP performances by reducing the number of experiments necessary to find the best parameters.
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Affiliation(s)
- Maud Savonnet
- Univ. Grenoble Alpes, CEA, CNRS, IRIG-SyMMES, 38000 Grenoble, France; (M.S.); (M.A.); (Y.R.)
- Microfluidic Systems and Bioengineering Lab, Technologies for Healthcare and Biology Department, Univ. Grenoble Alpes, CEA, LETI, 38000 Grenoble, France;
| | - Mathilde Aubret
- Univ. Grenoble Alpes, CEA, CNRS, IRIG-SyMMES, 38000 Grenoble, France; (M.S.); (M.A.); (Y.R.)
- Microfluidic Systems and Bioengineering Lab, Technologies for Healthcare and Biology Department, Univ. Grenoble Alpes, CEA, LETI, 38000 Grenoble, France;
| | - Patricia Laurent
- Microfluidic Systems and Bioengineering Lab, Technologies for Healthcare and Biology Department, Univ. Grenoble Alpes, CEA, LETI, 38000 Grenoble, France;
| | - Yoann Roupioz
- Univ. Grenoble Alpes, CEA, CNRS, IRIG-SyMMES, 38000 Grenoble, France; (M.S.); (M.A.); (Y.R.)
| | - Myriam Cubizolles
- Microfluidic Systems and Bioengineering Lab, Technologies for Healthcare and Biology Department, Univ. Grenoble Alpes, CEA, LETI, 38000 Grenoble, France;
- Correspondence: (M.C.); (A.B.)
| | - Arnaud Buhot
- Univ. Grenoble Alpes, CEA, CNRS, IRIG-SyMMES, 38000 Grenoble, France; (M.S.); (M.A.); (Y.R.)
- Correspondence: (M.C.); (A.B.)
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17
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Zhang S, Liu M, Cui H, Ziaee MA, Sun R, Chen L, Chen D, Garoli D, Wang J. Detection of small-sized DNA fragments in a glassy nanopore by utilization of CRISPR-Cas12a as a converter system. Analyst 2022; 147:905-914. [PMID: 35142306 DOI: 10.1039/d1an02313f] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The fabrication of nanopores with a matched pore size, and the existence of multiple interferents make the reproducible detection of small-sized molecules by means of solid-state nanopores still challenging. A useful method to solve these problems is based on the detection of large DNA nanostructures related to the existence of small-sized targets. In particular, a DNA tetrahedron with a well-defined 3D nanostructure is the ideal candidate for use as a signal transducer. Here, we demonstrate the detection of an L1-encoding gene of HPV18 as a test DNA target sequence in a reaction buffer solution, where long single-stranded DNA linking DNA tetrahedra onto the surface of the magnetic beads is cleaved by a target DNA-activated CRISPR-cas12 system. The DNA tetrahedra are subsequently released and can be detected by the current pulse in a glassy nanopore. This approach has several advantages: (1) one signal transducer can be used to detect different targets; (2) a glassy nanopore with a pore size much larger than the target DNA fragment can boost the tolerance of the contaminants and interferents which often degrade the performance of a nanopore sensor.
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Affiliation(s)
- Shumin Zhang
- School of Mechanical and Electrical Engineering, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou, 510006, China.
| | - Minyi Liu
- School of Mechanical and Electrical Engineering, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou, 510006, China.
| | - Haofa Cui
- School of Mechanical and Electrical Engineering, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou, 510006, China.
| | - Muhammad Asad Ziaee
- School of Mechanical and Electrical Engineering, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou, 510006, China.
| | - Rongwei Sun
- School of Mechanical and Electrical Engineering, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou, 510006, China.
| | - Liting Chen
- School of Mechanical and Electrical Engineering, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou, 510006, China.
| | - Daqi Chen
- School of Mechanical and Electrical Engineering, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou, 510006, China.
| | - Denis Garoli
- Istituto Italiano di Tecnologia, Via Morego 30, 16136 Genova, Italy. .,Liberà Università di Bolzano, Piazza Università 1, 39100 Bolzano, Italy
| | - Jiahai Wang
- School of Mechanical and Electrical Engineering, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou, 510006, China.
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