1
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Yang Y, Tan J, Wang F, Sun W, Shi H, Cheng Z, Xie Y, Zhou X. Preconcentration and detection of SARS-CoV-2 in wastewater: A comprehensive review. Biosens Bioelectron 2024; 263:116617. [PMID: 39094290 DOI: 10.1016/j.bios.2024.116617] [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: 05/22/2024] [Revised: 07/17/2024] [Accepted: 07/29/2024] [Indexed: 08/04/2024]
Abstract
Severe acute respiratory syndrome coronaviruses 2 (SARS-CoV-2) causing coronavirus disease 2019 (COVID-19) affected the health of human beings and the global economy. The patients with SARS-CoV-2 infection had viral RNA or live infectious viruses in feces. Thus, the possible transmission of SARS-CoV-2 through wastewater received great attentions. Moreover, SARS-CoV-2 in wastewater can serve as an early indicator of the infection within communities. We summarized the preconcentration and detection technology of SARS-CoV-2 in wastewater aiming at the complex matrices of wastewater and low virus concentration and compared their performance characteristics. We described the emerging tests that would be possible to realize the rapid detection of SARS-CoV-2 in fields and encourage academics to advance their technologies beyond conception. We concluded with a brief discussion on the outlook for integrating preconcentration and the detection of SARS-CoV-2 with emerging technologies.
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Affiliation(s)
- Yihan Yang
- School of Environment, Tsinghua University, Beijing, 100084, China
| | - Jisui Tan
- School of Environment, Tsinghua University, Beijing, 100084, China
| | - Fan Wang
- School of Environment, Tsinghua University, Beijing, 100084, China
| | - Weiming Sun
- School of Environment, Tsinghua University, Beijing, 100084, China
| | - Hanchang Shi
- School of Environment, Tsinghua University, Beijing, 100084, China
| | - Zhao Cheng
- School of Environment, Tsinghua University, Beijing, 100084, China
| | - Yangcun Xie
- Chinese Academy of Environmental Planning, Beijing, 100043, China.
| | - Xiaohong Zhou
- School of Environment, Tsinghua University, Beijing, 100084, China.
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2
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Chen J, Su H, Kim JH, Liu L, Liu R. Recent advances in the CRISPR/Cas system-based visual detection method. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024. [PMID: 39345221 DOI: 10.1039/d4ay01147c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/01/2024]
Abstract
Currently, various infectious pathogens and bacterial toxins as well as heavy metal pollution pose severe threats to global environmental health and the socio-economic infrastructure. Therefore, there is a pressing need for rapid, sensitive, and convenient visual molecular detection methods. The rapidly evolving detection approach based on clustered regularly interspaced short palindromic repeats (CRISPR)/associated nucleases (Cas) has opened a new frontier in the field of molecular diagnostics. This paper reviews the development of visual detection methods in recent years based on different Cas and analyzes their advantages and disadvantages as well as the challenges of future research. Firstly, different CRISPR/Cas effectors and their working principles in the diagnosis of various diseases are briefly reviewed. Subsequently, the article focuses on the development of visual readout signals in point-of-care testing using laboratory-based CRISPR/Cas technology, including colorimetric, fluorescence, and lateral flow analysis. Finally, the challenges and prospects of visual detection methods based on CRISPR/Cas technology are discussed.
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Affiliation(s)
- Jinrong Chen
- Department of Biotechnology, College of Engineering, The University of Suwon, Hwaseong 18323, Korea.
- Shandong Province Key Laboratory of Detection Technology of Tumor Markers, Linyi University, Linyi 276005, China.
| | - Hang Su
- Shandong Province Key Laboratory of Detection Technology of Tumor Markers, Linyi University, Linyi 276005, China.
| | - June Hyun Kim
- Department of Biotechnology, College of Engineering, The University of Suwon, Hwaseong 18323, Korea.
| | - Lishang Liu
- Shandong Province Key Laboratory of Detection Technology of Tumor Markers, Linyi University, Linyi 276005, China.
| | - Rui Liu
- Department of Biotechnology, College of Engineering, The University of Suwon, Hwaseong 18323, Korea.
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3
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Zhao C, Du L, Hu J, Hou X. Recombinase Polymerase Amplification and Target-Triggered CRISPR/Cas12a Assay for Sensitive and Selective Hepatitis B Virus DNA Analysis Based on Lanthanide Tagging and Inductively Coupled Plasma Mass Spectrometric Detection. Anal Chem 2024; 96:15059-15065. [PMID: 39241168 DOI: 10.1021/acs.analchem.4c03715] [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: 09/08/2024]
Abstract
Herein, we report a target-triggered CRISPR/Cas12a assay by coupling lanthanide tagging and inductively coupled plasma mass spectrometry (ICP-MS) for highly sensitive elemental detection. Hepatitis B virus (HBV) DNA was chosen as a model analyte, and recombinase polymerase amplification (RPA) was used for target amplification. The double-stranded RPA amplicons containing a 5' TTTG PAM sequence can be recognized by Cas12a through a specific CRISPR RNA, activating the trans-cleavage activity of CRISPR/Cas12a and nonspecific cleavage of terbium (Tb)-ssDNA modified on magnetic beads (MBs). Following magnetic separation and acid digestion, the released Tb3+ ions were quantitated by ICP-MS and correlated to the concentration of HBV DNA. Taking advantage of the accelerated cleavage of Tb-ssDNA attached to the MB particles, RPA for target amplification, and ICP-MS for highly selective signal readout, this method permits the detection of 1 copy/μL of HBV DNA in serum with high specificity and holds great promise in the early diagnosis of viral infections or tumor development.
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Affiliation(s)
- Chenxi Zhao
- Analytical & Testing Center, Sichuan University, Chengdu, Sichuan 610064, China
| | - Lijie Du
- Analytical & Testing Center, Sichuan University, Chengdu, Sichuan 610064, China
| | - Jing Hu
- Analytical & Testing Center, Sichuan University, Chengdu, Sichuan 610064, China
| | - Xiandeng Hou
- Analytical & Testing Center, Sichuan University, Chengdu, Sichuan 610064, China
- Key Lab of Green Chem & Tech (MOE) at College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, China
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4
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Yao Z, Li W, He K, Wang H, Xu Y, Xu X, Wu Q, Wang L. Precise pathogen quantification by CRISPR-Cas: a sweet but tough nut to crack. Crit Rev Microbiol 2024:1-19. [PMID: 39287550 DOI: 10.1080/1040841x.2024.2404041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Revised: 09/04/2024] [Accepted: 09/09/2024] [Indexed: 09/19/2024]
Abstract
Pathogen detection is increasingly applied in medical diagnosis, food processing and safety, and environmental monitoring. Rapid, sensitive, and accurate pathogen quantification is the most critical prerequisite for assessing protocols and preventing risks. Among various methods evolved, those based on clustered regularly interspaced short palindromic repeats (CRISPR)-associated proteins (Cas) have been developed as important pathogen detection strategies due to their distinct advantages of rapid target recognition, programmability, ultra-specificity, and potential for scalability of point-of-care testing (POCT). However, arguments and concerns on the quantitative capability of CRISPR-based strategies are ongoing. Herein, we systematically overview CRISPR-based pathogen quantification strategies according to the principles, properties, and application scenarios. Notably, we review future challenges and perspectives to address the of precise pathogen quantification by CRISPR-Cas. We hope the insights presented in this review will benefit development of CRISPR-based pathogen detection methods.
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Affiliation(s)
- Zhihao Yao
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
- Lab of Brewing Microbiology and Applied Enzymology, The Key Laboratory of Industrial Biotechnology, Ministry of Education, State Key Laboratory of Food Science and Technology, School of Biotechnology, Jiangnan University, Wuxi, Jiangsu, China
| | - Wanglu Li
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Kaiyu He
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Hongmei Wang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Yan Xu
- Lab of Brewing Microbiology and Applied Enzymology, The Key Laboratory of Industrial Biotechnology, Ministry of Education, State Key Laboratory of Food Science and Technology, School of Biotechnology, Jiangnan University, Wuxi, Jiangsu, China
| | - Xiahong Xu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Qun Wu
- Lab of Brewing Microbiology and Applied Enzymology, The Key Laboratory of Industrial Biotechnology, Ministry of Education, State Key Laboratory of Food Science and Technology, School of Biotechnology, Jiangnan University, Wuxi, Jiangsu, China
| | - Liu Wang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
- Key Laboratory of Traceability for Agricultural Genetically Modified Organisms, Ministry of Agriculture and Rural Affairs, Hangzhou, China
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5
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Luo B, Zhou J, Zhan X, Ying B, Lan F, Wu Y. Visual and colorimetric detection of microRNA in clinical samples based on strand displacement amplification and nanozyme-mediated CRISPR-Cas12a system. Talanta 2024; 277:126310. [PMID: 38815319 DOI: 10.1016/j.talanta.2024.126310] [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: 02/29/2024] [Revised: 05/15/2024] [Accepted: 05/20/2024] [Indexed: 06/01/2024]
Abstract
The sensitive and accurate detection of target microRNA is especially important for the diagnosis, staging, and treatment of hepatocellular carcinoma (HCC). Herein, we report a simple strand displacement and CRISPR-Cas12a amplification strategy with nanozymes as a signal reporter for the binary visual and colorimetric detection of the HCC related microRNA. Pt@Au nanozymes with excellent peroxidase enzyme activity were prepared and linked to magnetic beads via a single-stranded DNA (ssDNA) linker. The target microRNA was designed to trigger strand displacement amplification and release a DNA promoter to activate the CRISPR-Cas12a system. The activated CRISPR-Cas12a system efficiently cleaved the linker ssDNA and released Pt@Au nanozymes from magnetic beads to induce the colorimetric reaction of 3,3',5,5'-tetramethylbenzidine. The strand displacement amplification converted the single microRNA input into abundant DNA promoter output, which improved the detection sensitivity by over two orders of magnitude. Through integration of strand displacement amplification and the nanozyme-mediated CRISPR-Cas12a system, limits of detection of 0.5 pM and 10 pM for miRNA-21 were achieved with colorimetric and visual readouts, respectively. The proposed strategy can achieve accurate quantitative detection of miRNA-21 in the range from 1 pM to 500 pM. The detection results for miRNA-21 using both colorimetric and visual readouts were validated in 40 clinical serum samples. Significantly, the proposed strategy achieved visual HCC diagnosis with the naked eye and could distinguish distinct Barcelona clinical HCC stages by colorimetric detection, showing good application prospects for sensitive and facile point-of-care testing for HCC.
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Affiliation(s)
- Bin Luo
- Analytical and Testing Center, Sichuan University, Chengdu, 610064, PR China
| | - Juan Zhou
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, PR China
| | - Xiaohui Zhan
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610064, PR China
| | - Binwu Ying
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, PR China
| | - Fang Lan
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610064, PR China
| | - Yao Wu
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610064, PR China.
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6
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Tian R, Ma W, Wang L, Xie W, Wang Y, Yin Y, Weng T, He S, Fang S, Liang L, Wang L, Wang D, Bai J. The combination of DNA nanostructures and materials for highly sensitive electrochemical detection. Bioelectrochemistry 2024; 157:108651. [PMID: 38281367 DOI: 10.1016/j.bioelechem.2024.108651] [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: 11/24/2023] [Revised: 01/17/2024] [Accepted: 01/18/2024] [Indexed: 01/30/2024]
Abstract
Due to the wide range of electrochemical devices available, DNA nanostructures and material-based technologies have been greatly broadened. They have been actively used to create a variety of beautiful nanostructures owing to their unmatched programmability. Currently, a variety of electrochemical devices have been used for rapid sensing of biomolecules and other diagnostic applications. Here, we provide a brief overview of recent advances in DNA-based biomolecular assays. Biosensing platform such as electrochemical biosensor, nanopore biosensor, and field-effect transistor biosensors (FET), which are equipped with aptamer, DNA walker, DNAzyme, DNA origami, and nanomaterials, has been developed for amplification detection. Under the optimal conditions, the proposed biosensor has good amplification detection performance. Further, we discussed the challenges of detection strategies in clinical applications and offered the prospect of this field.
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Affiliation(s)
- Rong Tian
- Chongqing School, University of Chinese Academy of Sciences & Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, 400714, PR China.
| | - Wenhao Ma
- Bioengineering College of Chongqing University, Chongqing 400044, PR China
| | - Lue Wang
- School of Pharmaceutical Sciences, Tsinghua University, Beijing 100084, PR China
| | - Wanyi Xie
- Chongqing School, University of Chinese Academy of Sciences & Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, 400714, PR China
| | - Yunjiao Wang
- Chongqing School, University of Chinese Academy of Sciences & Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, 400714, PR China
| | - Yajie Yin
- Chongqing School, University of Chinese Academy of Sciences & Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, 400714, PR China
| | - Ting Weng
- Chongqing School, University of Chinese Academy of Sciences & Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, 400714, PR China
| | - Shixuan He
- Chongqing School, University of Chinese Academy of Sciences & Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, 400714, PR China
| | - Shaoxi Fang
- Chongqing School, University of Chinese Academy of Sciences & Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, 400714, PR China
| | - Liyuan Liang
- Chongqing School, University of Chinese Academy of Sciences & Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, 400714, PR China
| | - Liang Wang
- Chongqing School, University of Chinese Academy of Sciences & Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, 400714, PR China.
| | - Deqiang Wang
- Chongqing School, University of Chinese Academy of Sciences & Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, 400714, PR China.
| | - Jingwei Bai
- School of Pharmaceutical Sciences, Tsinghua University, Beijing 100084, PR China
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7
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Luo L, Dong F, Li D, Li X, Li X, Fan Y, Qi C, Luo J, Li L, Shen B. Enhancing 3D DNA Walker-Induced CRISPR/Cas12a Technology for Highly Sensitive Detection of ExomicroRNA Associated with Osteoporosis. ACS Sens 2024; 9:1438-1446. [PMID: 38451610 DOI: 10.1021/acssensors.3c02533] [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] [Indexed: 03/08/2024]
Abstract
Exosomal microRNAs (exomiRNAs) have emerged as promising biomarkers for the early clinical diagnosis of osteoporosis. However, their limited abundance and short length in peripheral blood present significant challenges for the accurate detection of exomiRNAs. Herein, we have designed and implemented an efficacious fluorescence-based biosensor for the highly sensitive detection of exomiRNA associated with osteoporosis, leveraging the enhancing 3D DNA walker-induced CRISPR/Cas12a technology. The engineered DNA walker is capable of efficiently transforming target exomiRNA into amplifying DNA strands, thereby enhancing the sensitivity of the developed biosensor. Concurrently, the liberated DNA strands serve as activators to trigger Cas12a trans-cleavage activity, culminating in a significantly amplified fluorescent signal for the highly sensitive detection of exomiRNA-214. Under optimal conditions, the devised technology demonstrated the capacity to detect target exomiRNA-214 at concentrations as low as 20.42 fM, encompassing a wide linear range extending from 50.0 fM to 10.0 nM. Moreover, the fluorescence-based biosensor could accurately differentiate between healthy individuals and osteoporosis patients via the detection of exomiRNA-214, which was in agreement with RT-qPCR results. As such, this biosensing technology offers promise as a valuable tool for the early diagnosis of osteoporosis.
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Affiliation(s)
- Lijuan Luo
- Department of Laboratory Medicine, The Third Affiliated Hospital of Chongqing Medical University, Chongqing 401120, PR China
| | - Fang Dong
- Department of Gerontology, The First Branch of The First Affiliated Hospital of Chongqing Medical University, Chongqing 400000, PR China
| | - Dandan Li
- Department of Laboratory Medicine, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400072, PR China
| | - Xinmin Li
- Chongqing Key Laboratory of Sichuan-Chongqing Co-construction for Diagnosis and Treatment of Infectious Diseases Integrated Traditional Chinese and Western Medicine, Chongqing Hospital of Traditional Chinese Medicine, Chongqing 400021, PR China
| | - Xinyu Li
- Key Laboratory of Clinical Laboratory Diagnostics (Ministry of Education), College of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, PR China
| | - Yunpeng Fan
- Chongqing Key Laboratory of Sichuan-Chongqing Co-construction for Diagnosis and Treatment of Infectious Diseases Integrated Traditional Chinese and Western Medicine, Chongqing Hospital of Traditional Chinese Medicine, Chongqing 400021, PR China
- Key Laboratory of Clinical Laboratory Diagnostics (Ministry of Education), College of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, PR China
| | - Caihong Qi
- Department of Laboratory Medicine, Chongqing General Hospital, Chongqing 401147, PR China
| | - Jinyong Luo
- Key Laboratory of Clinical Laboratory Diagnostics (Ministry of Education), College of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, PR China
| | - Li Li
- Department of Laboratory Medicine, Chongqing General Hospital, Chongqing 401147, PR China
| | - Bo Shen
- Chongqing Key Laboratory of Sichuan-Chongqing Co-construction for Diagnosis and Treatment of Infectious Diseases Integrated Traditional Chinese and Western Medicine, Chongqing Hospital of Traditional Chinese Medicine, Chongqing 400021, PR China
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8
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Li B, Zhai G, Dong Y, Wang L, Ma P. Recent progress on the CRISPR/Cas system in optical biosensors. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:798-816. [PMID: 38259224 DOI: 10.1039/d3ay02147e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
Clustered regularly interspaced short palindromic repeats (CRISPR) and CRISPR-associated (Cas) protein systems are adaptive immune systems unique to archaea and bacteria, with the characteristics of targeted recognition and gene editing to resist the invasion of foreign nucleic acids. Biosensors combined with the CRISPR/Cas system and optical detection technology have attracted much attention in medical diagnoses, food safety, agricultural progress, and environmental monitoring owing to their good sensitivity, high selectivity, and fast detection efficiency. In this review, we introduce the mechanism of CRISPR/Cas systems and developments in this area, followed by summarizing recent progress on CRISPR/Cas system-based optical biosensors combined with colorimetric, fluorescence, electrochemiluminescence and surface-enhanced Raman scattering optical techniques in various fields. Finally, we discuss the challenges and future perspectives of CRISPR/Cas systems in optical biosensors.
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Affiliation(s)
- Bingqian Li
- School of Special Education and Rehabilitation, Binzhou Medical University, Yantai 264003, China.
| | - Guangyu Zhai
- School of Pharmacy, Binzhou Medical University, Yantai 264003, China
| | - Yaru Dong
- School of Pharmacy, Binzhou Medical University, Yantai 264003, China
| | - Lan Wang
- School of Special Education and Rehabilitation, Binzhou Medical University, Yantai 264003, China.
| | - Peng Ma
- School of Basic Medicine, Binzhou Medical University, Yantai 264003, China.
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9
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Zhang Y, Yu W, Wang M, Zhang L, Li P. Nanozyme-assisted amplification-free CRISPR/Cas system realizes visual detection. Front Bioeng Biotechnol 2024; 11:1327498. [PMID: 38249803 PMCID: PMC10796770 DOI: 10.3389/fbioe.2023.1327498] [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: 10/25/2023] [Accepted: 12/18/2023] [Indexed: 01/23/2024] Open
Abstract
The CRISPR (clustered regularly interspaced short palindromic repeats)/Cas (CRISPR associated) system has proven to be a powerful tool for nucleic acid detection due to its inherent advantages of effective nucleic acid identification and editing capabilities, and is therefore known as the next-generation of molecular diagnostic technology. However, the detection technologies based on CRISPR/Cas systems require preamplification of target analytes; that is, target gene amplification steps through isothermal amplification or PCR before detection to increase target analyte concentrations. This creates a number of testing limitations, such as extended testing time and the need for more sophisticated testing instruments. To overcome the above limitations, various amplification-free assay strategies based on CRISPR/Cas systems have been explored as alternatives, which omit the preamplification step to increase the concentrations of the target analytes. Nanozymes play a pivotal role in enhancing the sensitivity of CRISPR-based detection, enabling visual and rapid CRISPR assays. The utilization of nanozyme exceptional enzyme-like catalytic activity holds great promise for signal amplification in both electrochemical and optical domains, encompassing strategies for electrochemical signal sensors and colorimetric signal sensors. Rather than relying on converting a single detection target analyte into multiple analytes, these methods focus on signal amplification, the main mechanism of which involves the ability to form a large number of reporter molecules or to improve the performance of the sensor. This exploitation of nanozymes for signal amplification results in the heightened sensitivity and accuracy of detection outcomes. In addition to the strategies that improve sensor performance through the application of nanozymes, additional methods are needed to achieve visual signal amplification strategies without preamplification processes. Herein, we review the strategies for improving CRISPR/Cas systems that do not require preamplification, providing a simple, intuitive and preamplification-free CRISPR/Cas system detection platform by improving in-system one-step amplification programs, or enhancing nanozyme-mediated signal amplification strategies.
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Affiliation(s)
- Yuan Zhang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
| | - Wanpeng Yu
- Medical Collage, Qingdao University, Qingdao, China
| | - Man Wang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
| | - Lei Zhang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
| | - Peifeng Li
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
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10
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Liu LE, Xue L, Li Y, Ji J, Yuan X, Han H, Ding L, Wu Y, Yang R. MOFs-derived Co 3O 4@MnO 2@Carbon dots with enhanced nanozymes activity for photoelectrochemical detection of cancer cells in whole blood. Talanta 2024; 266:125095. [PMID: 37625292 DOI: 10.1016/j.talanta.2023.125095] [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: 06/27/2023] [Revised: 08/15/2023] [Accepted: 08/18/2023] [Indexed: 08/27/2023]
Abstract
Nanozymes have attracted widespread attention, and rationally designing high-activity nanozymes to improve their application performance are a long-term objective. Herein, taking metal-organic frameworks-derived Co3O4 polyhedron with large surface area and high porosity as nanoconfinement carriers, Co3O4@MnO2@CDs polyhedron was successfully synthesized by the room-temperature reduction of MnO4- ions and physical load of carbon dots (CDs). Through cancer cells-triggered double antibody sandwich strategy, the Co3O4@MnO2@CDs polyhedron were introduced to the TiO2 nanoparticle (NPs) modified electrode, leading to the decreased photocurrent. The Co3O4@MnO2@CDs polyhedron can not only quench the photocurrent of TiO2 NPs, also act as nanozymes to catalyze precipitates. Moreover, the precipitates can not only reduce the photoelectrochemical (PEC) response, also increase the quenching capacity of the Co3O4@MnO2@CDs polyhedron. Additionally, the steric hindrance effect of the Co3O4@MnO2@CDs-Ab conjugates further weaken the photocurrent. Based on the multifunctional Co3O4@MnO2@CDs polyhedron, the proposed PEC biosensor for the detection of A549 cancer cells exhibits a wide linear range from 102 to 106 cells/mL and a low detection limit of 11 cells/mL. Furthermore, this strategy can differentiate between lung cancer patients and healthy individuals. The designed multifunctional Co3O4@MnO2@CDs nanozymes provide a new horizon for PEC detection of cancer cells, and may have great potential in early clinical diagnosis and biomedical research.
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Affiliation(s)
- Li-E Liu
- College of Public Health, Zhengzhou University, Zhengzhou, 450001, China
| | - Linsheng Xue
- College of Public Health, Zhengzhou University, Zhengzhou, 450001, China
| | - Yuling Li
- College of Public Health, Zhengzhou University, Zhengzhou, 450001, China
| | - Jiangying Ji
- College of Public Health, Zhengzhou University, Zhengzhou, 450001, China
| | - Xinxin Yuan
- College of Public Health, Zhengzhou University, Zhengzhou, 450001, China
| | - Hangchen Han
- College of Public Health, Zhengzhou University, Zhengzhou, 450001, China
| | - Lihua Ding
- College of Public Health, Zhengzhou University, Zhengzhou, 450001, China
| | - Yongjun Wu
- College of Public Health, Zhengzhou University, Zhengzhou, 450001, China
| | - Ruiying Yang
- College of Public Health, Zhengzhou University, Zhengzhou, 450001, China.
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11
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Zhou J, Liu Y, Du X, Gui Y, He J, Xie F, Cai J. Recent Advances in Design and Application of Nanomaterials-Based Colorimetric Biosensors for Agri-food Safety Analysis. ACS OMEGA 2023; 8:46346-46361. [PMID: 38107919 PMCID: PMC10720297 DOI: 10.1021/acsomega.3c06409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 10/12/2023] [Accepted: 11/03/2023] [Indexed: 12/19/2023]
Abstract
A colorimetric sensor detects an analyte by utilizing the optical properties of the sensor unit, such as absorption or reflection, to generate a structural color that serves as the output signal to detect an analyte. Detecting the refractive index of an analyte by recording the color change of the sensor structure on its surface has several advantages, including simple operation, low cost, suitability for onsite analysis, and real-time detection. Colorimetric sensors have drawn much attention owing to their rapidity, simplicity, high sensitivity and selectivity. This Review discusses the use of colorimetric sensors in the food industry, including their applications for detecting food contaminants. The Review also provides insight into the scope of future research in this area.
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Affiliation(s)
- Jiaojiao Zhou
- National
R&D Center for Se-Rich Agricultural Products Processing, Hubei
Engineering Research Center for Deep Processing of Green Se-Rich Agricultural
Products, School of Modern Industry for Selenium Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, China
| | - Yuantao Liu
- National
R&D Center for Se-Rich Agricultural Products Processing, Hubei
Engineering Research Center for Deep Processing of Green Se-Rich Agricultural
Products, School of Modern Industry for Selenium Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, China
| | - Xiaoping Du
- Ankang
R&D Center for Se-enriched Products, Key Laboratory of Se-enriched
Products Development and Quality Control, Ministry of Agriculture and Rural Affairs, Ankang Shaanxi 725000, China
| | - Yue Gui
- National
R&D Center for Se-Rich Agricultural Products Processing, Hubei
Engineering Research Center for Deep Processing of Green Se-Rich Agricultural
Products, School of Modern Industry for Selenium Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, China
| | - Jiangling He
- National
R&D Center for Se-Rich Agricultural Products Processing, Hubei
Engineering Research Center for Deep Processing of Green Se-Rich Agricultural
Products, School of Modern Industry for Selenium Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, China
| | - Fang Xie
- National
R&D Center for Se-Rich Agricultural Products Processing, Hubei
Engineering Research Center for Deep Processing of Green Se-Rich Agricultural
Products, School of Modern Industry for Selenium Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, China
| | - Jie Cai
- National
R&D Center for Se-Rich Agricultural Products Processing, Hubei
Engineering Research Center for Deep Processing of Green Se-Rich Agricultural
Products, School of Modern Industry for Selenium Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, China
- Key
Laboratory for Deep Processing of Major Grain and Oil, Ministry of
Education, Hubei Key Laboratory for Processing and Transformation
of Agricultural Products, Wuhan Polytechnic
University, Wuhan 430023, China
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12
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Wang H, Li YL, Fan YJ, Dong JX, Ren X, Ma H, Wu D, Gao ZF, Wei Q, Xia F. DNA Tile and Invading Stacking Primer-Assisted CRISPR-Cas12a Multiple Amplification System for Entropy-Driven Electrochemical Detection of MicroRNA with Tunable Sensitivity. Anal Chem 2023; 95:13659-13667. [PMID: 37623910 DOI: 10.1021/acs.analchem.3c02603] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/26/2023]
Abstract
Conventional electrochemical detection of microRNA (miRNA) encounters issues of poor sensitivity and fixed dynamic range. Here, we report a DNA tile and invading stacking primer-assisted CRISPR-Cas12a multiple amplification strategy to construct an entropy-controlled electrochemical biosensor for the detection of miRNA with tunable sensitivity and dynamic range. To amplify the signal, a cascade amplification of the CRISPR-Cas12a system along with invading stacking primer signal amplification (ISPSA) was designed to detect trace amounts of miRNA-31 (miR-31). The target miR-31 could activate ISPSA and produce numerous DNAs, triggering the cleavage of the single-stranded linker probe (LP) that connects a methylene blue-labeled DNA tile with a DNA tetrahedron to form a Y-shaped DNA scaffold on the electrode. Based on the decrease of current, miR-31 can be accurately and efficiently detected. Impressively, by changing the loop length of the LP, it is possible to finely tune the entropic contribution while keeping the enthalpic contribution constant. This strategy has shown a tunable limit of detection for miRNA from 0.31 fM to 0.56 pM, as well as a dynamic range from ∼2200-fold to ∼270,000-fold. Moreover, it demonstrated satisfactory results in identifying cancer cells with a high expression of miR-31. Our strategy broadens the application of conventional electrochemical biosensing and provides a tunable strategy for detecting miRNAs at varying concentrations.
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Affiliation(s)
- Huan Wang
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Nanxinzhuang West Road, Jinan 250022, P. R. China
| | - Yan Lei Li
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Nanxinzhuang West Road, Jinan 250022, P. R. China
| | - Ya Jie Fan
- Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Materials Science, Hebei University, Baoding 071002, P. R. China
| | - Jiang Xue Dong
- Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Materials Science, Hebei University, Baoding 071002, P. R. China
| | - Xiang Ren
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Nanxinzhuang West Road, Jinan 250022, P. R. China
| | - Hongmin Ma
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Nanxinzhuang West Road, Jinan 250022, P. R. China
| | - Dan Wu
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Nanxinzhuang West Road, Jinan 250022, P. R. China
| | - Zhong Feng Gao
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Nanxinzhuang West Road, Jinan 250022, P. R. China
| | - Qin Wei
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Nanxinzhuang West Road, Jinan 250022, P. R. China
| | - Fan Xia
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, 388 Lumo Road, Wuhan 430074, P. R. China
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13
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Ke X, Hu Y, Chen C, Hu T. A one-tube dual-readout biosensor for detection of nucleic acids and non-nucleic acids using CRISPR-ALP tandem assay. Analyst 2023; 148:4356-4364. [PMID: 37555739 DOI: 10.1039/d3an00918a] [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: 08/10/2023]
Abstract
Clustered regularly interspaced short palindromic repeats (CRISPR)-based diagnostics have been considered a next-generation molecular diagnosis tool. Single-readout mode has been extensively employed in massive CRISPR/Cas12a-based biosensors. In this work, we propose a one-tube dual-readout biosensor (CRISAT) for the first time for the detection of ultrasensitive nucleic acids and non-nucleic acids developed by harnessing CRISPR-ALP tandem assay. In the presence of a target, Cas12a is activated to randomly cut the single-stranded hyDNA sequence of MB@hyDNA-cALP, thus releasing abundant alkaline phosphatase (ALP) in the supernatant solution. By using 4-aminophenol phosphate as the substrate of ALP, p-aminophenol is produced, which then reacts with N-[3-(trimethoxysilyl)propyl]ethylenediamine or diethylenetriamine to generate silicon-containing polymer carbon dots (Si PCDs) or polymer carbon dots (PCDs) in situ, which can be observed by the naked eye or detected using a fluorescent device in the same solution. Using this strategy, a fluorescence and colorimetry dual-readout nanoplatform for CRISPR-based biosensors can be rationally developed. We ascertain the applicability of CRISAT by detecting the SARS-CoV-2 pseudovirus, achieving superior sensitivity and specificity. With simple modification of crRNAs, the CRISAT platform can also be employed to detect monkeypox virus (MPXV) and non-nucleic acids of adenosine triphosphate (ATP). This work shows great potential for the detection of nucleic acids and non-nucleic acids.
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Affiliation(s)
- Xinxin Ke
- Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, 310052, China.
| | - Yi Hu
- Hefei National Lab for Physical Sciences at the Microscale and the Centers for Biomedical Engineering, University of Science and Technology of China, Hefei, 230027, China
| | - Chuanxia Chen
- School of Materials Science and Engineering, University of Jinan, Jinan, Shandong, 250022, China.
| | - Tao Hu
- Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, 310052, China.
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14
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Ma T, Huang K, Cheng N. Recent Advances in Nanozyme-Mediated Strategies for Pathogen Detection and Control. Int J Mol Sci 2023; 24:13342. [PMID: 37686145 PMCID: PMC10487713 DOI: 10.3390/ijms241713342] [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: 07/14/2023] [Revised: 08/13/2023] [Accepted: 08/25/2023] [Indexed: 09/10/2023] Open
Abstract
Pathogen detection and control have long presented formidable challenges in the domains of medicine and public health. This review paper underscores the potential of nanozymes as emerging bio-mimetic enzymes that hold promise in effectively tackling these challenges. The key features and advantages of nanozymes are introduced, encompassing their comparable catalytic activity to natural enzymes, enhanced stability and reliability, cost effectiveness, and straightforward preparation methods. Subsequently, the paper delves into the detailed utilization of nanozymes for pathogen detection. This includes their application as biosensors, facilitating rapid and sensitive identification of diverse pathogens, including bacteria, viruses, and plasmodium. Furthermore, the paper explores strategies employing nanozymes for pathogen control, such as the regulation of reactive oxygen species (ROS), HOBr/Cl regulation, and clearance of extracellular DNA to impede pathogen growth and transmission. The review underscores the vast potential of nanozymes in pathogen detection and control through numerous specific examples and case studies. The authors highlight the efficiency, rapidity, and specificity of pathogen detection achieved with nanozymes, employing various strategies. They also demonstrate the feasibility of nanozymes in hindering pathogen growth and transmission. These innovative approaches employing nanozymes are projected to provide novel options for early disease diagnoses, treatment, and prevention. Through a comprehensive discourse on the characteristics and advantages of nanozymes, as well as diverse application approaches, this paper serves as a crucial reference and guide for further research and development in nanozyme technology. The expectation is that such advancements will significantly contribute to enhancing disease control measures and improving public health outcomes.
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Affiliation(s)
- Tianyi Ma
- Beijing Laboratory for Food Quality and Safety, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China; (T.M.); (K.H.)
| | - Kunlun Huang
- Beijing Laboratory for Food Quality and Safety, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China; (T.M.); (K.H.)
- Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety), Ministry of Agriculture, Beijing 100083, China
| | - Nan Cheng
- Beijing Laboratory for Food Quality and Safety, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China; (T.M.); (K.H.)
- Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety), Ministry of Agriculture, Beijing 100083, China
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15
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Ivanov AV, Safenkova IV, Zherdev AV, Wan Y, Dzantiev BB. Comparison of Single-Stranded DNA Probes Conjugated with Magnetic Particles for Trans-Cleavage in Cas12a-Based Biosensors. BIOSENSORS 2023; 13:700. [PMID: 37504099 PMCID: PMC10376970 DOI: 10.3390/bios13070700] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 06/26/2023] [Accepted: 06/28/2023] [Indexed: 07/29/2023]
Abstract
Biosensors based on endonuclease Cas12 provide high specificity in pathogen detection. Sensitive detection using Cas12-based assays can be achieved using trans-cleaved DNA probes attached to simply separated carriers, such as magnetic particles (MPs). The aim of this work was to compare polyA, polyC, and polyT single-stranded (ss) DNA with different lengths (from 10 to 145 nt) as trans-target probes were immobilized on streptavidin-covered MPs. Each ssDNA probe was labeled using fluorescein (5') and biotin (3'). To compare the probes, we used guide RNAs that were programmed for the recognition of two bacterial pathogens: Dickeya solani (causing blackleg and soft rot) and Erwinia amylovora (causing fire blight). The Cas12 was activated by targeting double-stranded DNA fragments of D. solani or E. amylovora and cleaved the MP-ssDNA conjugates. The considered probes demonstrated basically different dependencies in terms of cleavage efficiency. PolyC was the most effective probe when compared to polyA or polyT probes of the same length. The minimal acceptable length for the cleavage follows the row: polyC < polyT < polyA. The efficiencies of polyC and polyT probes with optimal length were proven for the DNA targets' detection of D. solani and E. amylovora. The regularities found can be used in Cas12a-based detection of viruses, bacteria, and other DNA/RNA-containing analytes.
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Affiliation(s)
- Aleksandr V Ivanov
- A.N. Bach Institute of Biochemistry, Research Centre of Biotechnology of the Russian Academy of Sciences, 119071 Moscow, Russia
| | - Irina V Safenkova
- A.N. Bach Institute of Biochemistry, Research Centre of Biotechnology of the Russian Academy of Sciences, 119071 Moscow, Russia
| | - Anatoly V Zherdev
- A.N. Bach Institute of Biochemistry, Research Centre of Biotechnology of the Russian Academy of Sciences, 119071 Moscow, Russia
| | - Yi Wan
- State Key Laboratory of Marine Resource Utilization in South China Sea, Marine College, Hainan University, Haikou 570228, China
| | - Boris B Dzantiev
- A.N. Bach Institute of Biochemistry, Research Centre of Biotechnology of the Russian Academy of Sciences, 119071 Moscow, Russia
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Wang J, Xie Q, Song H, Chen X, Zhang X, Zhao X, Hao Y, Zhang Y, Li H, Li N, Fan K, Wang X. Utilizing nanozymes for combating COVID-19: advancements in diagnostics, treatments, and preventative measures. J Nanobiotechnology 2023; 21:200. [PMID: 37344839 PMCID: PMC10283317 DOI: 10.1186/s12951-023-01945-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Accepted: 05/29/2023] [Indexed: 06/23/2023] Open
Abstract
The emergence of human severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) poses significant challenges to global public health. Despite the extensive efforts of researchers worldwide, there remains considerable opportunities for improvement in timely diagnosis, specific treatment, and effective vaccines for SARS-CoV-2. This is due, in part, to the large number of asymptomatic carriers, rapid virus mutations, inconsistent confinement policies, untimely diagnosis and limited clear treatment plans. The emerging of nanozymes offers a promising approach for combating SARS-CoV-2 due to their stable physicochemical properties and high surface areas, which enable easier and multiple nano-bio interactions in vivo. Nanozymes inspire the development of sensitive and economic nanosensors for rapid detection, facilitate the development of specific medicines with minimal side effects for targeted therapy, trigger defensive mechanisms in the form of vaccines, and eliminate SARS-CoV-2 in the environment for prevention. In this review, we briefly present the limitations of existing countermeasures against coronavirus disease 2019 (COVID-19). We then reviewed the applications of nanozyme-based platforms in the fields of diagnostics, therapeutics and the prevention in COVID-19. Finally, we propose opportunities and challenges for the further development of nanozyme-based platforms for COVID-19. We expect that our review will provide valuable insights into the new emerging and re-emerging infectious pandemic from the perspective of nanozymes.
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Affiliation(s)
- Jia Wang
- Shanxi Medical University School and Hospital of Stomatology, Taiyuan, 030001 China
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan, 030001 China
| | - Qingpeng Xie
- Shanxi Medical University School and Hospital of Stomatology, Taiyuan, 030001 China
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan, 030001 China
| | - Haoyue Song
- Shanxi Medical University School and Hospital of Stomatology, Taiyuan, 030001 China
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan, 030001 China
| | - Xiaohang Chen
- Shanxi Medical University School and Hospital of Stomatology, Taiyuan, 030001 China
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan, 030001 China
| | - Xiaoxuan Zhang
- Shanxi Medical University School and Hospital of Stomatology, Taiyuan, 030001 China
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan, 030001 China
| | - Xiangyu Zhao
- Shanxi Medical University School and Hospital of Stomatology, Taiyuan, 030001 China
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan, 030001 China
| | - Yujia Hao
- Shanxi Medical University School and Hospital of Stomatology, Taiyuan, 030001 China
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan, 030001 China
| | - Yuan Zhang
- Shanxi Medical University School and Hospital of Stomatology, Taiyuan, 030001 China
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan, 030001 China
| | - Huifei Li
- Shanxi Medical University School and Hospital of Stomatology, Taiyuan, 030001 China
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan, 030001 China
| | - Na Li
- Shanxi Medical University School and Hospital of Stomatology, Taiyuan, 030001 China
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan, 030001 China
| | - Kelong Fan
- CAS Engineering Laboratory for Nanozyme, Key Laboratory of Protein and Peptide Pharmaceutical, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101 China
| | - Xing Wang
- Shanxi Medical University School and Hospital of Stomatology, Taiyuan, 030001 China
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan, 030001 China
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17
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Xu S, Wang S, Guo L, Tong Y, Wu L, Huang X. Nanozyme-catalysed CRISPR-Cas12a system for the preamplification-free colorimetric detection of lead ion. Anal Chim Acta 2023; 1243:340827. [PMID: 36697180 DOI: 10.1016/j.aca.2023.340827] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 12/21/2022] [Accepted: 01/11/2023] [Indexed: 01/14/2023]
Abstract
CRISPR-based detection was often based on the target preamplification to realize the high sensitivity. Here, we prepared a CRISPR-Cas12a system for the colorimetric detection of lead ion (Pb2+) based on the assistance of DNAzyme and nanozyme instead of preamplification. The recognition between GR-5 DNAzyme and Pb2+ could trigger the CRISPR-Cas12a system. MnO2 nanozymes connected with magnetic beads through single stranded DNA were prepared as the colorimetric signal probes and catalyst of CRISPR-Cas12a system for the strong oxidase-like activity inducing the color change of 3,3',5,5'-tetramethylbenzidine. The nanozyme-catalysed CRISPR-Cas12a system could be used to detect Pb2+ through the color change with high specificity and sensitivity. The linear range of this approach was 0.8 nM-2500 nM, with a limit of detection of 0.54 nM. This method was applied for the detection of the Pb2+ in food samples indicating good accuracy and anti-interference ability.
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Affiliation(s)
- Shiqi Xu
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, 210023, China
| | - Songtao Wang
- National Engineering Research Center of Solid-state Brewing, Luzhou, 646000, China
| | - Ling Guo
- Zhejiang Laboratory, Hangzhou, 311100, China
| | - Yuqin Tong
- National Engineering Research Center of Solid-state Brewing, Luzhou, 646000, China
| | - Lina Wu
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, 210023, China.
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