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Huang F, Jiang Y, Wu Q, Zheng C, Huang S, Yang H, Xiang G, Zheng L. A one-pot loop-mediated isothermal amplification platform using fluorescent gold nanoclusters for rapid and naked-eye pathogen detection. Food Chem 2024; 460:140573. [PMID: 39053273 DOI: 10.1016/j.foodchem.2024.140573] [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: 01/08/2024] [Revised: 07/01/2024] [Accepted: 07/21/2024] [Indexed: 07/27/2024]
Abstract
Loop-mediated isothermal amplification (LAMP) is a rapid and sensitive nucleic acid testing method for pathogen detection, yet the absence of a straightforward readout strategy remains challenging. We've successfully designed polyethyleneimine-stabilized gold nanoclusters (PEI-AuNCs) as a cationic AuNCs indicator tailored for distinguishing LAMP results, enabling direct visual inspection under UV light. Positive LAMP reactions with PEI-AuNCs, in combination with magnesium pyrophosphate crystals, yield red-fluorescent bulk precipitates visible to the naked eye. To address contamination concerns, we introduced a one-pot reaction by incorporating AuNCs into the lid recess. This one-pot LAMP assay demonstrates exceptional detection capability, identifying Salmonella enterica at concentrations as low as 101 CFU/mL within approximately 50 min, excluding nucleic acid extraction. The platform's versatility, achieved through customizable primers, positions it as a promising molecular diagnostic tool for rapid and visual pathogen detection across scientific disciplines.
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Affiliation(s)
- Fuyuan Huang
- Wenzhou Key Laboratory of Sanitary Microbiology, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Yayun Jiang
- Department of Clinical Laboratory, People's Hospital of Deyang City, Deyang, China
| | - Qiaoli Wu
- Wenzhou Key Laboratory of Sanitary Microbiology, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Chaochuan Zheng
- Wenzhou Key Laboratory of Sanitary Microbiology, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Shen Huang
- Wenzhou Key Laboratory of Sanitary Microbiology, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Huan Yang
- Wenzhou Lucheng District Center for Disease Control and Prevention, China.
| | - Guangxin Xiang
- Wenzhou Key Laboratory of Sanitary Microbiology, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China.
| | - Laibao Zheng
- Wenzhou Key Laboratory of Sanitary Microbiology, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China.
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2
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Yan C, Mu L, Mei M, Wang Y, She G, Shi W. Fluorescence Enhancement Method for Aptamer-Templated Silver Nanoclusters and Its Application in the Construction of a β-Amyloid Oligomer Sensor. Anal Chem 2023; 95:6915-6922. [PMID: 37079771 DOI: 10.1021/acs.analchem.3c00201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/22/2023]
Abstract
DNA-templated silver nanoclusters (DNA-AgNCs) have attracted significant attention due to their unique fluorescence properties. However, so far, the relatively low quantum yields of the DNA-AgNCs and the complex design of DNA-AgNC-based sensors have limited their application in biosensing or bioimaging. Herein, we report a novel fluorescence enhancement method. The β-Amyloid Oligomer (AβO) aptamer (AptAβO) with A10/T10 at its 3' end can be directly used as the template to fabricate the AgNCs. When the AgNCs were hybridized with the complementary strand that has 12 bases suspended at its 3' terminal, being the same or complementary to the A/T at the 3' end of the AptAβO, and two-base mismatches in the complementary region of the aptamer excluded A10/T10, a dramatic fluorescence enhancement (maximum: ∼500-fold; maximum quantum yield: 31.5%) can be realized. The fluorescence enhancement should result from the aggregation-induced emission of the AgNCs, which can be attributed to forming the reticular structure of the hybridized product. To some extent, the method developed in this work is extendable. The fluorescence enhancement was also realized from the thrombin aptamer-templated AgNCs through designing the aptamer and the corresponding complementary strand according to the method. Based on the fluorescence enhancement of the AptAβO-templated AgNCs, an "on-off" fluorescence sensor was constructed for the sensitive and selective detection of AβO. This work provides a rational strategy to realize fluorescence enhancement for the aptamer-templated AgNCs and design an aptamer-based fluorescence sensor.
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Affiliation(s)
- Chenyuan Yan
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lixuan Mu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Mingliang Mei
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yuan Wang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Guangwei She
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Wensheng Shi
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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3
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Li C, Wang Y, Li PF, Fu Q. Construction of rolling circle amplification products-based pure nucleic acid nanostructures for biomedical applications. Acta Biomater 2023; 160:1-13. [PMID: 36764595 DOI: 10.1016/j.actbio.2023.02.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Revised: 01/16/2023] [Accepted: 02/03/2023] [Indexed: 02/11/2023]
Abstract
Nucleic acid nanomaterials with good biocompatibility, biodegradability, and programmability have important applications in biomedical field. Nucleic acid nanomaterials are usually combined with some inorganic nanomaterials to improve their biological stability. However, undefined toxic side effects of composite nanocarriers hamper their application in vivo. As a nanotool capable of avoiding potential biotoxicity, nanostructures composed entirely of DNA oligonucleotides have been rapidly developed in the field of biomedicine in recent years. Rolling circle amplification (RCA) is an isothermal enzymatic nucleic acid amplification technology for large-scale production of periodic DNA/RNA with pre-designed desirable structures and functions. RCA products with different functional parts can be customized by changing the sequence of the circular template, thereby generating complex multifunctional DNA nanostructures, such as DNA nanowire, nanoflower, origami, nanotube, nanoribbon, etc. More importantly, RCA products as nonnicked building blocks can enhance the biostability of DNA nanostructures, especially in vivo. These RCA products-based nucleic acid nanostructures can be used as scaffolds or nanocarriers to interact or load with metal nanoparticles, proteins, lipids, cationic polymers, therapeutic nucleic acids or drugs, etc. This paper reviews the assembly strategies of RCA based DNA nanostructures with different shape and their applications in biosensing, bioimaging and biomedicine. Finally, the development prospects of the nucleic acid nanomaterials in clinical diagnosis and treatment of diseases are described. STATEMENT OF SIGNIFICANCE: As a nanotool capable of avoiding potential biotoxicity, nanostructures composed entirely of DNA oligonucleotides have been rapidly developed in the field of biomedicine in recent years. Rolling circle amplification (RCA) is an isothermal enzymatic nucleic acid amplification technology for large-scale production of periodic DNA/RNA with pre-designed desirable structures and functions. This paper reviews the construction of various shapes of pure nucleic acid nanomaterials based on RCA products and their applications in biosensing, bioimaging and biomedicine. This will promote the development of biocompatible DNA nanovehicles and their further application in living systems, including bioimaging, molecular detection, disease diagnosis and drug delivery, finally producing a significant impact in the field of nanotechnology and nanomedicine.
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Affiliation(s)
- Congcong Li
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, 1 Ningde Road, Qingdao 266073, China.
| | - Yin Wang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, 1 Ningde Road, Qingdao 266073, China.
| | - Pei-Feng Li
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, 1 Ningde Road, Qingdao 266073, China.
| | - Qinrui Fu
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, 1 Ningde Road, Qingdao 266073, China.
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4
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Chen J, Liu J, Wu D, Pan R, Chen J, Wu Y, Huang M, Li G. CRISPR/Cas Precisely Regulated DNA-Templated Silver Nanocluster Fluorescence Sensor for Meat Adulteration Detection. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:14296-14303. [PMID: 36288511 DOI: 10.1021/acs.jafc.2c04500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Meat adulteration can cause consumer fraud, food allergies, and religious issues. Rapid and sensitive detection methods are urgently demanded to supervise meat authenticity. Herein, a clustered regularly interspaced short palindromic repeats (CRISPR)/Cas precisely regulated DNA-templated silver nanocluster (DNA-AgNC) sensor was ingeniously designed to detect meat adulteration. Specific sequence recognition of CRISPR/Cas12a allowed accurate identification of target DNA. The emerging label-free fluorescent probes, DNA-AgNCs, a class of promising fluorophores in biochemical analysis with attractive photostability and remarkably enhanced fluorescence properties, were first introduced as the substrates of CRISPR/Cas12a system, allowing a sensitive output of amplified signals through the precise regulation of the unique target DNA-activated trans-cleavage activity of Cas12a. Based on this specific recognition, efficient signal transduction of CRISPR/Cas12a, and the outstanding fluorescence properties of DNA-AgNCs, the proposed strategy achieved a satisfactory linear range from 10 pM to 1 μM with a limit of detection (LOD) as low as 1.9 pM, which can achieve sensitive detection of meat adulteration.
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Affiliation(s)
- Jiahui Chen
- School of Food Science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Jianghua Liu
- School of Food Science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Di Wu
- Institute for Global Food Security, School of Biological Sciences, Queen's University Belfast, 19 Chlorine Gardens, Belfast BT9 5DL, U.K
| | - Ruiyuan Pan
- School of Food Science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Jian Chen
- School of Food Science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Yongning Wu
- School of Food Science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
- NHC Key Laboratory of Food Safety Risk Assessment, Food Safety Research Unit (2019RU014) of Chinese Academy of Medical Science, China National Center for Food Safety Risk Assessment, Beijing 100021, China
| | - Mingquan Huang
- Beijing Laboratory of Food Quality and Safety, Beijing Technology and Business University, Beijing 100048, China
| | - Guoliang Li
- School of Food Science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
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5
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Li T, Hu Z, Yu S, Liu Z, Zhou X, Liu R, Liu S, Deng Y, Li S, Chen H, Chen Z. DNA Templated Silver Nanoclusters for Bioanalytical Applications: A Review. J Biomed Nanotechnol 2022. [DOI: 10.1166/jbn.2022.3344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Due to their unique programmability, biocompatibility, photostability and high fluorescent quantum yield, DNA templated silver nanoclusters (DNA Ag NCs) have attracted increasing attention for bioanalytical application. This review summarizes the recent developments in fluorescence
properties of DNA templated Ag NCs, as well as their applications in bioanalysis. Finally, we herein discuss some current challenges in bioanalytical applications, to promote developments of DNA Ag NCs in biochemical analysis.
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Affiliation(s)
- Taotao Li
- Hunan Provincial Key Lab of Dark Tea and Jin-Hua, School of Materials and Chemical Engineering, Hunan City University, Yiyang 413000, China
| | - Zhiyuan Hu
- Hunan Provincial Key Lab of Dark Tea and Jin-Hua, School of Materials and Chemical Engineering, Hunan City University, Yiyang 413000, China
| | - Songlin Yu
- Hunan Provincial Key Lab of Dark Tea and Jin-Hua, School of Materials and Chemical Engineering, Hunan City University, Yiyang 413000, China
| | - Zhanjun Liu
- Hunan Provincial Key Lab of Dark Tea and Jin-Hua, School of Materials and Chemical Engineering, Hunan City University, Yiyang 413000, China
| | - Xiaohong Zhou
- Hunan Provincial Key Lab of Dark Tea and Jin-Hua, School of Materials and Chemical Engineering, Hunan City University, Yiyang 413000, China
| | - Rong Liu
- Hunan Provincial Key Lab of Dark Tea and Jin-Hua, School of Materials and Chemical Engineering, Hunan City University, Yiyang 413000, China
| | - Shiquan Liu
- Hunan Provincial Key Lab of Dark Tea and Jin-Hua, School of Materials and Chemical Engineering, Hunan City University, Yiyang 413000, China
| | - Yan Deng
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou 412007, China
| | - Song Li
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou 412007, China
| | - Hui Chen
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou 412007, China
| | - Zhu Chen
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou 412007, China
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6
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Wu Q, Liu C, Liu Y, Cui C, Ge J, Tan W. Multibranched Linear DNA-Controlled Assembly of Silver Nanoclusters and Their Applications in Aptamer-Based Cell Recognition. ACS APPLIED MATERIALS & INTERFACES 2022; 14:14953-14960. [PMID: 35344322 DOI: 10.1021/acsami.1c24547] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
DNA-templated silver nanoclusters (DNA-AgNCs) are promising fluorescent materials and have been used in cancer diagnosis. Although many different DNA-AgNC applications have been realized, most of them rely on individual DNA-AgNCs or assembled DNA-AgNCs with limited recognition abilities, resulting in low detection sensitivity or off-target effects, in turn, hindering the performance of DNA-AgNCs in cancer cell recognition. As a solution, we assembled DNA-AgNCs by a multibranched linear (MBL) DNA structure formed through a trigger-initiated hybridization chain reaction (HCR) regarding the natural compatibility of DNA-AgNCs with DNA programmability and the advantages of DNA assembly in incorporating repetitive and functional moieties into one structure. By the specific modification of the trigger, MBL-AgNCs tethered with the targeting aptamer and partially hybridized duplex, which works as a component of DNA logic platform relying on the combination of cascade strand displacement reaction and specific recognition ability of aptamers, were obtained, respectively. DNA-AgNCs assembled by the aptamer-tethered MBL structure exhibited about 20-fold enhanced detection sensitivity in recognizing cancer cells compared to individual aptamer-tethered DNA-AgNCs. DNA-AgNCs assembled by the duplex-attached MBL exhibited logic performance in analyzing dual cell surface receptors with the assistance of "AND" logic platform, thus identifying cancer cells with high sensitivity and resolution. The facile conjugation of the MBL structure with different functional DNA structures makes it an ideal platform to assemble DNA-AgNCs used for aptamer-based cell recognition, thus broadening the potential applications of DNA-AgNCs.
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Affiliation(s)
- Qiong Wu
- Center for Research at Bio/Nano Interface, Department of Chemistry and Department of Physiology and Functional Genomics, UF Health Cancer Center, UF Genetics Institute and McKnight Brain Institute, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Chengcheng Liu
- Center for Research at Bio/Nano Interface, Department of Chemistry and Department of Physiology and Functional Genomics, UF Health Cancer Center, UF Genetics Institute and McKnight Brain Institute, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Yuan Liu
- Center for Research at Bio/Nano Interface, Department of Chemistry and Department of Physiology and Functional Genomics, UF Health Cancer Center, UF Genetics Institute and McKnight Brain Institute, University of Florida, Gainesville, Florida 32611-7200, United States
- The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, Zhejiang 310022, China
| | - Cheng Cui
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Aptamer Engineering Center of Hunan Province, Hunan University, Changsha 410082, China
| | - Jia Ge
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Weihong Tan
- Center for Research at Bio/Nano Interface, Department of Chemistry and Department of Physiology and Functional Genomics, UF Health Cancer Center, UF Genetics Institute and McKnight Brain Institute, University of Florida, Gainesville, Florida 32611-7200, United States
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Aptamer Engineering Center of Hunan Province, Hunan University, Changsha 410082, China
- The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, Zhejiang 310022, China
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7
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Zhang C, Belwal T, Luo Z, Su B, Lin X. Application of Nanomaterials in Isothermal Nucleic Acid Amplification. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2102711. [PMID: 34626064 DOI: 10.1002/smll.202102711] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Revised: 08/29/2021] [Indexed: 05/26/2023]
Abstract
Because of high sensitivity and specificity, isothermal nucleic acid amplification are widely applied in many fields. To facilitate and improve their performance, various nanomaterials, like nanoparticles, nanowires, nanosheets, nanotubes, and nanoporous films are introduced in isothermal nucleic acid amplification. However, the specific application, roles, and prospect of nanomaterials in isothermal nucleic acid amplification have not been comprehensively reviewed. Here, the application of different nanomaterials (0D, 1D, 2D, and 3D) in isothermal nucleic acid amplification is comprehensively discussed and recent progress in the field is summarized. The nanomaterials are mainly used for reaction enhancer, signal generation/amplification, or surface loading carriers. In addition, 3D nanomaterials can be also functioned as isolated chambers for digital nucleic acid amplification and the tools for DNA sequencing of amplified products. Challenges and future recommendations are also proposed to be better used for recent covid-19 detection, point-of-care diagnostic, food safety, and other fields.
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Affiliation(s)
- Chao Zhang
- College of Biosystems Engineering and Food Science, Key Laboratory of Agro-Products Postharvest Handling of Ministry of Agriculture and Rural Affairs, Fuli Institute of Food Science, Zhejiang University, Hangzhou, 310058, China
| | - Tarun Belwal
- College of Biosystems Engineering and Food Science, Key Laboratory of Agro-Products Postharvest Handling of Ministry of Agriculture and Rural Affairs, Fuli Institute of Food Science, Zhejiang University, Hangzhou, 310058, China
| | - Zisheng Luo
- College of Biosystems Engineering and Food Science, Key Laboratory of Agro-Products Postharvest Handling of Ministry of Agriculture and Rural Affairs, Fuli Institute of Food Science, Zhejiang University, Hangzhou, 310058, China
- Ningbo Research Institute, Zhejiang University, Ningbo, 315100, China
| | - Bin Su
- Institute of Analytical Chemistry, Department of Chemistry, Zhejiang University, Hangzhou, 310058, China
| | - Xingyu Lin
- College of Biosystems Engineering and Food Science, Key Laboratory of Agro-Products Postharvest Handling of Ministry of Agriculture and Rural Affairs, Fuli Institute of Food Science, Zhejiang University, Hangzhou, 310058, China
- Ningbo Research Institute, Zhejiang University, Ningbo, 315100, China
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8
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Ma GM, Huo LW, Tong YX, Wang YC, Li CP, Jia HX. Label-free and sensitive MiRNA detection based on turn-on fluorescence of DNA-templated silver nanoclusters coupled with duplex-specific nuclease-assisted signal amplification. Mikrochim Acta 2021; 188:355. [PMID: 34585278 DOI: 10.1007/s00604-021-05001-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Accepted: 08/24/2021] [Indexed: 11/30/2022]
Abstract
A novel strategy for microRNAs (miRNAs) detection has been developed utilizing duplex-specific nuclease-assisted signal amplification (DSNSA) and guanine-rich DNA-enhanced fluorescence of DNA-templated silver nanoclusters (AgNCs). The combination between target miRNA, DSNSA, and AgNCs is achieved by the unique design of DNA sequences. Target miRNA opens the hairpin structure of the Hairpin DNA probe (HP) by hybridizing with the HP and initiates the duplex-specific nuclease-assisted signal amplification (DSNSA) reaction. The DSNSA reaction generates the release of the guanine-rich DNA sequence, which can turn on the fluorescence of the dark AgNCs by hybridizing with the DNA template of the dark AgNCs. The fluorescence intensity of AgNCs corresponds to the dosage of the target miRNA. This is measured at 630 nm by exciting at 560 nm. The constructed method exhibits a low detection limit (~8.3 fmol), a great dynamic range of more than three orders of magnitude, and excellent selectivity. Moreover, it has a good performance for miR-21 detection in complex biological samples. A novel strategy for microRNAs (miRNAs) detection has been developed utilizing duplex-specific nuclease-assisted signal amplification (DSNSA) and guanine-rich DNA-enhanced fluorescence of DNA-templated silver nanoclusters (AgNCs).
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Affiliation(s)
- Gui-Min Ma
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis, Ministry of Education; Key Laboratory of Analytical Science and Technology of Hebei Province; Institute of Life Science and Green Development; College of Chemistry and Environmental Science, Hebei University, Baoding, 071002, Hebei Province, People's Republic of China
| | - Li-Wei Huo
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis, Ministry of Education; Key Laboratory of Analytical Science and Technology of Hebei Province; Institute of Life Science and Green Development; College of Chemistry and Environmental Science, Hebei University, Baoding, 071002, Hebei Province, People's Republic of China
| | - Yin-Xia Tong
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis, Ministry of Education; Key Laboratory of Analytical Science and Technology of Hebei Province; Institute of Life Science and Green Development; College of Chemistry and Environmental Science, Hebei University, Baoding, 071002, Hebei Province, People's Republic of China
| | - Yu-Cong Wang
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis, Ministry of Education; Key Laboratory of Analytical Science and Technology of Hebei Province; Institute of Life Science and Green Development; College of Chemistry and Environmental Science, Hebei University, Baoding, 071002, Hebei Province, People's Republic of China
| | - Cui-Ping Li
- Key Laboratory of Public Health Safety of Hebei Province; Key Laboratory of Medicinal Chemistry and Molecular Diagnosis, Ministry of Education; College of Public Health, Hebei University, Baoding, 071002, People's Republic of China
| | - Hong-Xia Jia
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis, Ministry of Education; Key Laboratory of Analytical Science and Technology of Hebei Province; Institute of Life Science and Green Development; College of Chemistry and Environmental Science, Hebei University, Baoding, 071002, Hebei Province, People's Republic of China.
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9
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Xu L, Zhou Z, Gou X, Shi W, Gong Y, Yi M, Cheng W, Song F. Light up multiple protein dimers on cell surface based on proximity-induced fluorescence activation of DNA-templated sliver nanoclusters. Biosens Bioelectron 2021; 179:113064. [DOI: 10.1016/j.bios.2021.113064] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 01/27/2021] [Accepted: 01/31/2021] [Indexed: 02/07/2023]
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10
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A Label-Free Fluorescent Sensor Based on the Formation of Poly(thymine)-Templated Copper Nanoparticles for the Sensitive and Selective Detection of MicroRNA from Cancer Cells. CHEMOSENSORS 2020. [DOI: 10.3390/chemosensors8030052] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
In this work, a simple and label-free fluorescence “off” to “on” platform was designed for the sensitive and selective detection of microRNA (miRNA) in cancer cells. This method utilized a padlock DNA-based rolling circle amplification (P-RCA) to synthesize fluorescent poly(thymine) (PolyT) which acted as a template for the synthesis of copper nanoparticles (CuNPs) within 10 minutes under mild conditions. While the repeated PolyT sequence was used as the template for CuNP synthesis, other non-PolyT parts (single strand-DNAs without the capacity to act as the template for CuNP formation) served as “smart glues” or rigid linkers to build complex nanostructures. Under the excitation wavelength of 340 nm, the synthesized CuNPs emitted strong red fluorescence effectively at 620 nm. To demonstrate the use of this method as a universal biosensor platform, lethal-7a (let-7a) miRNA was chosen as the standard target. This sensor could achieve highly sensitive and selective detection of miRNA in the presence of other homologous analogues for the combination of P-RCA with the fluorescent copper nanoparticle. Overall, this novel label-free method holds great potential in the sensitive detection of miRNA with high specificity in real samples.
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11
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Wen QL, Peng J, Liu AY, Wang J, Hu YL, Ling J, Cao QE. DNA bioassays based on the fluorescence 'turn off' of silver nanocluster beacon. LUMINESCENCE 2020; 35:702-708. [PMID: 31926119 DOI: 10.1002/bio.3775] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 12/23/2019] [Accepted: 12/30/2019] [Indexed: 12/12/2022]
Abstract
Recognition and quantification of oligonucleotide sequences play important roles in medical diagnosis. In this study, a new fluorescent oligonucleotide-stabilized silver nanocluster beacon (NCB) probe was designed for sensitive detection of oligonucleotide sequence targets. This probe contained two tailored DNA strands. One strand was a signal probe strand containing a cytosine-rich strand template for fluorescent silver nanocluster (Ag NC) synthesis and a detection sections at each end. The other strand was a fluorescence enhancing strand containing a guanine-rich section for signal enhancement at one end and a linker section complementary to one end of the signal probe strand. After synthesis of the Ag NCs and hybridization of the two strands, the fluorescence intensity of the as-prepared silver NCB was enhanced 200-fold compared with the Ag NCs. Two NCBs were designed to detect two disease-related oligonucleotide sequences, and results indicated that the two target oligonucleotide sequences in the range 50.0-600.0 and 50.0-200.0 nM could be linearly detected with detection limits of 20 and 25 nM, respectively. The developed fluorescence method using NCBs for oligonucleotide sequence detection was sensitive, facile and had potential for use in bioanalysis and diagnosis.
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Affiliation(s)
- Qiu-Lin Wen
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, China
| | - Jun Peng
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, China.,Hunan Province Geological Testing Institute, Changsha, China
| | - An-Yong Liu
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, China
| | - Jun Wang
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, China
| | - Yi-Lin Hu
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, China
| | - Jian Ling
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, China
| | - Qiu-E Cao
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, China
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12
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Zhou H, Duan S, Huang J, He F. An ultrasensitive electrochemical biosensor for Pseudomonas aeruginosa assay based on a rolling circle amplification-assisted multipedal DNA walker. Chem Commun (Camb) 2020; 56:6273-6276. [DOI: 10.1039/d0cc01619e] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
An ultrasensitive electrochemical biosensor was developed based on RCA and multipedal DNA walking strategy for the assay of 16S rRNA gene, and it has great application potential in food safety, environmental monitoring, and disease diagnosis.
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Affiliation(s)
- Huang Zhou
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha
- P. R. China
| | - Shaoyun Duan
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha
- P. R. China
| | - Ji Huang
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha
- P. R. China
| | - Fengjiao He
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha
- P. R. China
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13
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Guo Y, Pan X, Zhang W, Hu Z, Wong KW, He Z, Li HW. Label-free probes using DNA-templated silver nanoclusters as versatile reporters. Biosens Bioelectron 2019; 150:111926. [PMID: 31929081 DOI: 10.1016/j.bios.2019.111926] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2019] [Revised: 11/17/2019] [Accepted: 11/25/2019] [Indexed: 12/17/2022]
Abstract
DNA-templated silver nanoclusters (DNA-AgNCs) have demonstrated pervasive applications in analytical chemistry recently. As a way of signal output in DNA-based detection methods, DNA-AgNCs have prominent advantages: first, the recognition and synthesizing sequences are naturally integrated in one DNA probe without any chemical modification or connection; second, the emissive wavelength of DNA-AgNCs can be adjusted in a wide range by employing different sequences; third, DNA-AgNCs can be utilized for producing not only fluorescence, also electrochemiluminescence and electrochemical signals. Besides, they also show potential applications for cell imaging, and are considered to be one of the most ideal nanomaterials for in-vivo imaging due to their ultra-small particle size. In this review, a brief and comprehensive introduction of DNA-AgNCs is firstly given, then label-free probes using DNA-AgNCs are classified and summarized, lastly concluding perspectives are provided on the defects and application potentials.
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Affiliation(s)
- Yahui Guo
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, 214122, China; Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - Xinyue Pan
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, 214122, China
| | - Wenya Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, 214122, China
| | - Zhigang Hu
- Wuxi Children's Hospital, Wuxi People's Hospital Affiliated to Nanjing Medical University, Wuxi, China
| | - Ka-Wang Wong
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - Zhike He
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Hung-Wing Li
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China.
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14
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Catalytic hairpin assembly induced dual signal enhancement for rapid detection of miRNA using fluorescence light-up silver nanocluster. Anal Chim Acta 2019; 1084:93-98. [DOI: 10.1016/j.aca.2019.08.007] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Accepted: 08/04/2019] [Indexed: 01/09/2023]
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15
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Xie Z, Sun P, Wang Z, Li H, Yu L, Sun D, Chen M, Bi Y, Xin X, Hao J. Metal–Organic Gels from Silver Nanoclusters with Aggregation‐Induced Emission and Fluorescence‐to‐Phosphorescence Switching. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201912201] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Zengchun Xie
- National Engineering Research Center for Colloidal MaterialsKey Laboratory of Colloid and Interface ChemistryMinistry of EducationSchool of Chemistry and Chemical EngineeringShandong University Jinan 250100 China
| | - Panpan Sun
- National Engineering Research Center for Colloidal MaterialsKey Laboratory of Colloid and Interface ChemistryMinistry of EducationSchool of Chemistry and Chemical EngineeringShandong University Jinan 250100 China
| | - Zhi Wang
- National Engineering Research Center for Colloidal MaterialsKey Laboratory of Colloid and Interface ChemistryMinistry of EducationSchool of Chemistry and Chemical EngineeringShandong University Jinan 250100 China
| | - Hongguang Li
- National Engineering Research Center for Colloidal MaterialsKey Laboratory of Colloid and Interface ChemistryMinistry of EducationSchool of Chemistry and Chemical EngineeringShandong University Jinan 250100 China
| | - Longyue Yu
- National Engineering Research Center for Colloidal MaterialsKey Laboratory of Colloid and Interface ChemistryMinistry of EducationSchool of Chemistry and Chemical EngineeringShandong University Jinan 250100 China
| | - Di Sun
- National Engineering Research Center for Colloidal MaterialsKey Laboratory of Colloid and Interface ChemistryMinistry of EducationSchool of Chemistry and Chemical EngineeringShandong University Jinan 250100 China
| | - Mengjun Chen
- National Engineering Research Center for Colloidal MaterialsKey Laboratory of Colloid and Interface ChemistryMinistry of EducationSchool of Chemistry and Chemical EngineeringShandong University Jinan 250100 China
| | - Yuting Bi
- National Engineering Research Center for Colloidal MaterialsKey Laboratory of Colloid and Interface ChemistryMinistry of EducationSchool of Chemistry and Chemical EngineeringShandong University Jinan 250100 China
| | - Xia Xin
- National Engineering Research Center for Colloidal MaterialsKey Laboratory of Colloid and Interface ChemistryMinistry of EducationSchool of Chemistry and Chemical EngineeringShandong University Jinan 250100 China
| | - Jingcheng Hao
- National Engineering Research Center for Colloidal MaterialsKey Laboratory of Colloid and Interface ChemistryMinistry of EducationSchool of Chemistry and Chemical EngineeringShandong University Jinan 250100 China
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16
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Xie Z, Sun P, Wang Z, Li H, Yu L, Sun D, Chen M, Bi Y, Xin X, Hao J. Metal-Organic Gels from Silver Nanoclusters with Aggregation-Induced Emission and Fluorescence-to-Phosphorescence Switching. Angew Chem Int Ed Engl 2019; 59:9922-9927. [PMID: 31573132 DOI: 10.1002/anie.201912201] [Citation(s) in RCA: 80] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Indexed: 12/15/2022]
Abstract
Luminescent metal nanoclusters (NCs) are emerging as a new class of functional materials that have rich physicochemical properties and wide potential applications. In recent years, it has been found that some metal NCs undergo aggregation-induced emission (AIE) and an interesting fluorescence-to-phosphorescence (F-P) switching in solutions. However, insights of both the AIE and the F-P switching remain largely unknown. Now, gelation of water soluble, atomically precise Ag9 NCs is achieved by the addition of antisolvent. Self-assembly of Ag9 NCs into entangled fibers was confirmed, during which AIE was observed together with an F-P switching occurring within a narrow time scale. Structural evaluation indicates the fibers are highly ordered. The self-assembly of Ag9 NCs and their photoluminescent property are thermally reversible, making the metal-organic gels good candidates for luminescent ratiometric thermometers.
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Affiliation(s)
- Zengchun Xie
- National Engineering Research Center for Colloidal Materials, Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, China
| | - Panpan Sun
- National Engineering Research Center for Colloidal Materials, Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, China
| | - Zhi Wang
- National Engineering Research Center for Colloidal Materials, Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, China
| | - Hongguang Li
- National Engineering Research Center for Colloidal Materials, Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, China
| | - Longyue Yu
- National Engineering Research Center for Colloidal Materials, Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, China
| | - Di Sun
- National Engineering Research Center for Colloidal Materials, Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, China
| | - Mengjun Chen
- National Engineering Research Center for Colloidal Materials, Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, China
| | - Yuting Bi
- National Engineering Research Center for Colloidal Materials, Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, China
| | - Xia Xin
- National Engineering Research Center for Colloidal Materials, Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, China
| | - Jingcheng Hao
- National Engineering Research Center for Colloidal Materials, Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, China
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17
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Li J, Lin L, Yu J, Zhai S, Liu G, Tian L. Fabrication and Biomedical Applications of “Polymer-Like” Nucleic Acids Enzymatically Produced by Rolling Circle Amplification. ACS APPLIED BIO MATERIALS 2019; 2:4106-4120. [DOI: 10.1021/acsabm.9b00622] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jing Li
- Department of Materials Science and Engineering, Southern University of Science and Technology, 1088 Xueyuan Boulevard, Nanshan District, Shenzhen, Guangdong 518055, P. R. China
| | - Li Lin
- Department of Materials Science and Engineering, Southern University of Science and Technology, 1088 Xueyuan Boulevard, Nanshan District, Shenzhen, Guangdong 518055, P. R. China
| | - Jiantao Yu
- Department of Materials Science and Engineering, Southern University of Science and Technology, 1088 Xueyuan Boulevard, Nanshan District, Shenzhen, Guangdong 518055, P. R. China
| | - Shiyao Zhai
- Department of Materials Science and Engineering, Southern University of Science and Technology, 1088 Xueyuan Boulevard, Nanshan District, Shenzhen, Guangdong 518055, P. R. China
| | - Guoyuan Liu
- Department of Materials Science and Engineering, Southern University of Science and Technology, 1088 Xueyuan Boulevard, Nanshan District, Shenzhen, Guangdong 518055, P. R. China
| | - Leilei Tian
- Department of Materials Science and Engineering, Southern University of Science and Technology, 1088 Xueyuan Boulevard, Nanshan District, Shenzhen, Guangdong 518055, P. R. China
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18
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Zhang X, Liu S, Song X, Wang H, Wang J, Wang Y, Huang J, Yu J. DNA three-way junction-actuated strand displacement for miRNA detection using a fluorescence light-up Ag nanocluster probe. Analyst 2019; 144:3836-3842. [PMID: 31095133 DOI: 10.1039/c9an00508k] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A rapid and label-free fluorescence biosensing strategy for highly sensitive detection of microRNA-122 (miR-122) has been developed by the combination of DNA three-way junction (TWJ)-actuated strand displacement and a fluorescence light-up Ag nanocluster (AgNC) probe. In the presence of target miR-122, the attachment of miR-122 to its complementary DNA results in the unblocking of the toehold and branch migration domains in the TWJ, activating the strand displacement reaction (SDR) accompanied by the proximity between the G-rich DNA probe and DNA-AgNC probe; thus a remarkably enhanced fluorescence signal of AgNCs can be obtained owing to the G-rich fluorescence enhancement mechanism. The results reveal that this biosensor exhibits superb specificity and high sensitivity toward miR-122 with a detection limit of 0.030 nM. In addition, the practicality of the biosensor is demonstrated by analyzing miR-122 in three cell lines with satisfactory results. Furthermore, by the utilization of the toehold-mediated SDR and DNA-AgNC conjugates, this proposed strategy offers the advantages of rapidness, convenience, low cost, and simplified operation without the need for biological labeling and the addition of enzymes. Thus, the constructed biosensor might provide a valuable and practical tool for detecting miRNA and the related clinical diagnosis and fundamental biomedicine research.
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Affiliation(s)
- Xue Zhang
- College of Biological Sciences and Technology, University of Jinan, Jinan 250022, P. R. China.
| | - Su Liu
- School of Water Conservancy and Environment, University of Jinan, Jinan 250022, P. R. China
| | - Xiaolei Song
- School of Water Conservancy and Environment, University of Jinan, Jinan 250022, P. R. China
| | - Haiwang Wang
- College of Biological Sciences and Technology, University of Jinan, Jinan 250022, P. R. China.
| | - Jingfeng Wang
- College of Biological Sciences and Technology, University of Jinan, Jinan 250022, P. R. China.
| | - Yu Wang
- College of Biological Sciences and Technology, University of Jinan, Jinan 250022, P. R. China.
| | - Jiadong Huang
- College of Biological Sciences and Technology, University of Jinan, Jinan 250022, P. R. China. and Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, College of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China
| | - Jinghua Yu
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, College of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China
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19
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Wang J, Lin X, Shu T, Su L, Liang F, Zhang X. Self-Assembly of Metal Nanoclusters for Aggregation-Induced Emission. Int J Mol Sci 2019; 20:E1891. [PMID: 30999556 PMCID: PMC6515624 DOI: 10.3390/ijms20081891] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Revised: 04/01/2019] [Accepted: 04/03/2019] [Indexed: 01/01/2023] Open
Abstract
Aggregation-induced emission (AIE) is an intriguing strategy to enhance the luminescence of metal nanoclusters (NCs). However, the morphologies of aggregated NCs are often irregular and inhomogeneous, leading to instability and poor color purity of the aggregations, which greatly limit their further potential in optical applications. Inspired by self-assembly techniques, manipulating metal NCs into well-defined architectures has achieved success. The self-assembled metal NCs often exhibit enhancing emission stability and intensity compared to the individually or randomly aggregated ones. Meanwhile, the emission color of metal NCs becomes tunable. In this review, we summarize the synthetic strategies involved in self-assembly of metal NCs for the first time. For each synthetic strategy, we describe the self-assembly mechanisms involved and the dependence of optical properties on the self-assembly. Finally, we outline the current challenges to and perspectives on the development of this area.
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Affiliation(s)
- Jianxing Wang
- Beijing Advanced Innovation Center of Materials Genome Engineering, Research Center for Bioengineering and Sensing Technology, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China.
| | - Xiangfang Lin
- Beijing Advanced Innovation Center of Materials Genome Engineering, Research Center for Bioengineering and Sensing Technology, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China.
| | - Tong Shu
- Beijing Advanced Innovation Center of Materials Genome Engineering, Research Center for Bioengineering and Sensing Technology, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China.
| | - Lei Su
- Beijing Advanced Innovation Center of Materials Genome Engineering, Research Center for Bioengineering and Sensing Technology, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China.
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, Beijing 100048, China.
| | - Feng Liang
- The State Key Laboratory for Refractories and Metallurgy, Institute of Advanced Materials and Nanotechnology, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, China.
| | - Xueji Zhang
- Beijing Advanced Innovation Center of Materials Genome Engineering, Research Center for Bioengineering and Sensing Technology, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China.
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20
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Dai R, Hu P, Wang X, Wang S, Song X, Huang K, Chen P. Visual/CVG-AFS/ICP-MS multi-mode and label-free detection of target nucleic acids based on a selective cation exchange reaction and enzyme-free strand displacement amplification. Analyst 2019; 144:4407-4412. [PMID: 31210203 DOI: 10.1039/c9an00642g] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Visual/CVG-AFS/ICP-MS three-mode detection of DNA based on the selective cation exchange reaction and enzyme-free strand displacement amplification.
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Affiliation(s)
- Rui Dai
- College of Chemistry and Material Science
- Sichuan Normal University
- Chengdu
- China
| | - Pingyue Hu
- College of Chemistry and Material Science
- Sichuan Normal University
- Chengdu
- China
| | - Xiu Wang
- College of Chemistry and Material Science
- Sichuan Normal University
- Chengdu
- China
| | - Shixin Wang
- College of Chemistry and Material Science
- Sichuan Normal University
- Chengdu
- China
| | - Xinmei Song
- College of Chemistry and Material Science
- Sichuan Normal University
- Chengdu
- China
| | - Ke Huang
- College of Chemistry and Material Science
- Sichuan Normal University
- Chengdu
- China
| | - Piaopiao Chen
- Department of Laboratory Medicine
- State Key Laboratory of Biotherapy and Cancer Center
- West China Hospital
- Sichuan University and Collaborative Innovation Center for Biotherapy
- Chengdu
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21
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Zhang K, Lv S, Lin Z, Li M, Tang D. Bio-bar-code-based photoelectrochemical immunoassay for sensitive detection of prostate-specific antigen using rolling circle amplification and enzymatic biocatalytic precipitation. Biosens Bioelectron 2018; 101:159-166. [DOI: 10.1016/j.bios.2017.10.031] [Citation(s) in RCA: 204] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Revised: 10/11/2017] [Accepted: 10/14/2017] [Indexed: 12/31/2022]
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22
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Park KW, Lee CY, Batule BS, Park KS, Park HG. Ultrasensitive DNA detection based on target-triggered rolling circle amplification and fluorescent poly(thymine)-templated copper nanoparticles. RSC Adv 2018; 8:1958-1962. [PMID: 35542615 PMCID: PMC9077274 DOI: 10.1039/c7ra11071e] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2017] [Accepted: 12/26/2017] [Indexed: 11/21/2022] Open
Abstract
We describe a novel strategy for the ultrasensitive detection of target DNA based on rolling circle amplification (RCA) coupled with fluorescent poly(thymine)-templated copper nanoparticles (poly T-CuNPs). In the presence of target DNA, a padlock DNA probe that consists of two regions: a target DNA-specific region and a poly(adenine) region, is circularized by the ligation reaction, and the subsequent RCA reaction is promoted to generate long, concatemeric, single-stranded DNA (ssDNA) with a lot of repetitive poly T sequences. As a result, a large number of poly T-CuNPs are formed, exhibiting a highly fluorescent signal. However, in the absence of target DNA or in the presence of non-specific target DNA, the padlock DNA probe is not circularized and the subsequent RCA is not executed, leading to no production of fluorescent poly T-CuNPs. With this simple strategy, we successfully analyzed the target DNA with the ultralow detection limit of 7.79 aM, a value that is 3 or 7 orders of magnitude lower than those of previous RCA-based fluorescent DNA detection strategies. In addition, the developed system was demonstrated to selectively discriminate non-specific target DNAs with one-base mismatch, suggesting potential application in the accurate diagnosis of single nucleotide polymorphisms or mutations.
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Affiliation(s)
- Kwan Woo Park
- Department of Chemical and Biomolecular Engineering (BK 21+ Program), KAIST Daehak-ro 291, Yuseong-gu Daejeon 34141 Republic of Korea +82-42-350-3910 +82-42-350-3932
| | - Chang Yeol Lee
- Department of Chemical and Biomolecular Engineering (BK 21+ Program), KAIST Daehak-ro 291, Yuseong-gu Daejeon 34141 Republic of Korea +82-42-350-3910 +82-42-350-3932
| | - Bhagwan S Batule
- Department of Chemical and Biomolecular Engineering (BK 21+ Program), KAIST Daehak-ro 291, Yuseong-gu Daejeon 34141 Republic of Korea +82-42-350-3910 +82-42-350-3932
| | - Ki Soo Park
- Department of Biological Engineering, College of Engineering, Konkuk University Seoul 05029 Republic of Korea +82-2-450-3742 +82-2-450-3742
| | - Hyun Gyu Park
- Department of Chemical and Biomolecular Engineering (BK 21+ Program), KAIST Daehak-ro 291, Yuseong-gu Daejeon 34141 Republic of Korea +82-42-350-3910 +82-42-350-3932
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23
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Chen Z, Liu C, Cao F, Ren J, Qu X. DNA metallization: principles, methods, structures, and applications. Chem Soc Rev 2018; 47:4017-4072. [DOI: 10.1039/c8cs00011e] [Citation(s) in RCA: 114] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
This review summarizes the research activities on DNA metallization since the concept was first proposed in 1998, covering the principles, methods, structures, and applications.
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Affiliation(s)
- Zhaowei Chen
- Laboratory of Chemical Biology and State Key Laboratory of Rare Earth Resources Utilization
- Changchun Institute of Applied Chemistry
- Chinese Academy of Science
- Changchun
- P. R. China
| | - Chaoqun Liu
- Laboratory of Chemical Biology and State Key Laboratory of Rare Earth Resources Utilization
- Changchun Institute of Applied Chemistry
- Chinese Academy of Science
- Changchun
- P. R. China
| | - Fangfang Cao
- Laboratory of Chemical Biology and State Key Laboratory of Rare Earth Resources Utilization
- Changchun Institute of Applied Chemistry
- Chinese Academy of Science
- Changchun
- P. R. China
| | - Jinsong Ren
- Laboratory of Chemical Biology and State Key Laboratory of Rare Earth Resources Utilization
- Changchun Institute of Applied Chemistry
- Chinese Academy of Science
- Changchun
- P. R. China
| | - Xiaogang Qu
- Laboratory of Chemical Biology and State Key Laboratory of Rare Earth Resources Utilization
- Changchun Institute of Applied Chemistry
- Chinese Academy of Science
- Changchun
- P. R. China
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24
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Ge L, Sun X, Hong Q, Li F. Ratiometric Catalyzed-Assembly of NanoCluster Beacons: A Nonenzymatic Approach for Amplified DNA Detection. ACS APPLIED MATERIALS & INTERFACES 2017; 9:32089-32096. [PMID: 28849916 DOI: 10.1021/acsami.7b09034] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In this work, a novel fluorescent transformation phenomenon of oligonucleotide-encapsulated silver nanoclusters (AgNCs) was demonstrated, in which green-emissive AgNCs effectively transformed to red-emissive AgNCs when placed in close proximity to a special DNA fragment (denoted as convertor here). Taking advantage of a catalyzed-hairpin-assembly (CHA) amplification strategy, we rationally and compatibly engineered a simple and sensitive AgNC-based fluorescent signal amplification strategy through the ratiometric catalyzed-assembly (RCA) of green-emissive NanoCluster Beacon (NCB) with a convertor modified DNA hairpin to induce the template transformation circularly. The proposed ratiometric fluorescent biosensing platform based on RCA-amplified NCB (RCA-NCB) emits intense green fluorescence in the absence of target DNA and will undergo consecutively fluorescent signal transformation from green emission to red emission upon exposure to its target DNA. The ratiometric adaptation of the NCB to CHA circuit advances their general usability as biosensing platform with great improvements in detection sensitivity. By measuring the fluorescence intensity ratio of the red emission and green emission, the proposed RCA-NCB platform exhibits sensitive and accurate analytical performance toward Werner Syndrome-relevant gene, the proof-of-concept target in this work. A low detection limit down to the pM level was achieved, which is lower than most of the reported AgNC-based fluorescent DNA biosensors, making the proposed RCA-NCB biosensing strategy appealing in amplifying the ratiometric fluorescent signal for sensitive DNA detection. Moreover, our proposed RCA-NCB platform shows good recovery toward the target DNA in real human serum samples, illustrating their potential promise for clinical and imaging applications in the future.
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Affiliation(s)
- Lei Ge
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University , Qingdao, 266109, People's Republic of China
| | - Ximei Sun
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University , Qingdao, 266109, People's Republic of China
| | - Qing Hong
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University , Qingdao, 266109, People's Republic of China
| | - Feng Li
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University , Qingdao, 266109, People's Republic of China
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25
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Li B, Xu L, Chen Y, Zhu W, Shen X, Zhu C, Luo J, Li X, Hong J, Zhou X. Sensitive and Label-Free Fluorescent Detection of Transcription Factors Based on DNA-Ag Nanoclusters Molecular Beacons and Exonuclease III-Assisted Signal Amplification. Anal Chem 2017; 89:7316-7323. [DOI: 10.1021/acs.analchem.7b00055] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Bingzhi Li
- School
of Pharmacy, Nanjing Medical University, Nanjing 211166, People’s Republic of China
| | - Lei Xu
- School
of Pharmacy, Nanjing Medical University, Nanjing 211166, People’s Republic of China
| | - Yue Chen
- Department
of Nutrition and Food Safety, School of Public Health, Nanjing Medical University, Nanjing 211166, People’s Republic of China
| | - Wanying Zhu
- School
of Pharmacy, Nanjing Medical University, Nanjing 211166, People’s Republic of China
| | - Xin Shen
- School
of Pharmacy, Nanjing Medical University, Nanjing 211166, People’s Republic of China
| | - Chunhong Zhu
- School
of Pharmacy, Nanjing Medical University, Nanjing 211166, People’s Republic of China
| | - Jieping Luo
- School
of Pharmacy, Nanjing Medical University, Nanjing 211166, People’s Republic of China
| | - Xiaoxu Li
- School
of Pharmacy, Nanjing Medical University, Nanjing 211166, People’s Republic of China
| | - Junli Hong
- School
of Pharmacy, Nanjing Medical University, Nanjing 211166, People’s Republic of China
| | - Xuemin Zhou
- School
of Pharmacy, Nanjing Medical University, Nanjing 211166, People’s Republic of China
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Ge L, Sun X, Hong Q, Li F. Ratiometric NanoCluster Beacon: A Label-Free and Sensitive Fluorescent DNA Detection Platform. ACS APPLIED MATERIALS & INTERFACES 2017; 9:13102-13110. [PMID: 28367619 DOI: 10.1021/acsami.7b03198] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Although researches until now have emphasized the influence of an oligonucleotide sequence on the fluorescence of oligonucleotide-stabilized silver nanoclusters (AgNCs), this influence has been explored as a novel ratiometric fluorescent signal transduction in this work. This study builds on our original discovery of a template-transformation phenomenon, which demonstrated that the connection of a special DNA fragment (5'-CACCGCTTT-3') with a green-emitting AgNC nucleation sequence (GNuS, 5'-TGCCTTTTGGGGACGGATA-3') creates a red-emitting AgNC nucleation sequence (RNuS, 5'-CACCGCTTTTGCCTTTTGGGGACGGATA-3'). Attempts to expand this idea and construct elegant ratiometric NanoCluster Beacons (NCBs) for DNA sequence detection are not straightforward, and, thus, we carried out a series of investigations with the goal of understanding the mechanism of this template-transformation phenomenon. Experimental results showed that the six-nucleotide fragment (5'-CACCGC-3') at the 5'-end of RNuS acts as a template convertor and takes full responsibility for the template transformation from GNuS to RNuS. Moreover, we found that the appropriate proximity of the convertor to GNuS also plays a significant role in the template transformation. We then show that the insights gained here for the template-transformation mechanism allow us to construct ratiometric NCBs by simply appending the convertor and the GNuS onto a rationally designed stem-loop probe. This new type of NCB emits intense red fluorescence without the addition of a target DNA and emerges as a new, bright green emission only when hybridized to its target DNA. By measuring the distinct variation in the fluorescence intensity ratios of green and red emission, this ratiometric NCB was demonstrated to sensitively detect Hepatitis-A virus gene sequences, a proof-of-concept target in this work, with good selectivity.
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Affiliation(s)
- Lei Ge
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University , Qingdao 266109, P. R. China
| | - Ximei Sun
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University , Qingdao 266109, P. R. China
| | - Qing Hong
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University , Qingdao 266109, P. R. China
| | - Feng Li
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University , Qingdao 266109, P. R. China
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Lu S, Hu T, Wang S, Sun J, Yang X. Ultra-Sensitive Colorimetric Assay System Based on the Hybridization Chain Reaction-Triggered Enzyme Cascade Amplification. ACS APPLIED MATERIALS & INTERFACES 2017; 9:167-175. [PMID: 27996245 DOI: 10.1021/acsami.6b13201] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A versatile and ultrasensitive colorimetric detection platform has been developed based on the hybridization chain reaction (HCR)-triggered enzyme cascade amplification in this work. The proposal involves the preparation of two different hairpin DNA strands consisting of the H1, modified with glucose oxidase (GOx-H1) and H2, modified with horseradish peroxidase (HRP-H2). The H1 and H2 were composed of complementary sequence of nucleic acid target (T) and interlaced complementary stem-loop sequences. In the nucleic acid detection, the hybridization of T and its complementary sequence induces the autonomous assembly of GOx-H1 and HRP-H2 through the predictable HCR, accompanied by the formation of GOx/HRP enzyme pairs with a multiple enzymatic cascade. In contrast to the crude mixture of free GOx-H1 and HRP-H2, the catalytic performance of enzyme cascade reaction has been significantly enhanced, which can be determined by monitoring the absorbance change of 2, 2'-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) (ABTS2-), a typical substrate with hydrogen peroxide for the HRP. Furthermore, this platform can be utilized in the assay of biological substances by the introduction of corresponding aptamer (Apt), complementary strands (Com), and an assistant hairpin DNA strand (HAssist). In view of the signal amplification of HCR and the enhanced catalytic performance of cascaded enzymes, our colorimetric assay system exhibits excellent sensitivity, and the detection limits have been calculated to be 5.2 fM and 0.8 pM for the nucleic acid target (T as a model) and biological substances (ATP as a model), respectively.
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Affiliation(s)
- Shasha Lu
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun, Jilin 130022, China
- University of Science and Technology of China , Hefei, Anhui 230026, China
| | - Tao Hu
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun, Jilin 130022, China
- University of Science and Technology of China , Hefei, Anhui 230026, China
| | - Shuang Wang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun, Jilin 130022, China
- University of Science and Technology of China , Hefei, Anhui 230026, China
| | - Jian Sun
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun, Jilin 130022, China
| | - Xiurong Yang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun, Jilin 130022, China
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Feng C, Mao X, Yang Y, Zhu X, Yin Y, Li G. Rolling circle amplification in electrochemical biosensor with biomedical applications. J Electroanal Chem (Lausanne) 2016. [DOI: 10.1016/j.jelechem.2016.07.008] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Zhu Y, Wang H, Wang L, Zhu J, Jiang W. Cascade Signal Amplification Based on Copper Nanoparticle-Reported Rolling Circle Amplification for Ultrasensitive Electrochemical Detection of the Prostate Cancer Biomarker. ACS APPLIED MATERIALS & INTERFACES 2016; 8:2573-2581. [PMID: 26765624 DOI: 10.1021/acsami.5b10285] [Citation(s) in RCA: 113] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
An ultrasensitive and highly selective electrochemical assay was first attempted by combining the rolling circle amplification (RCA) reaction with poly(thymine)-templated copper nanoparticles (CuNPs) for cascade signal amplification. As proof of concept, prostate specific antigen (PSA) was selected as a model target. Using a gold nanoparticle (AuNP) as a carrier, we synthesized the primer-AuNP-aptamer bioconjugate for signal amplification by increasing the primer/aptamer ratio. The specific construction of primer-AuNP-aptamer/PSA/anti-PSA sandwich structure triggered the effective RCA reaction, in which thousands of tandem poly(thymine) repeats were generated and directly served as the specific templates for the subsequent CuNP formation. The signal readout was easily achieved by dissolving the RCA product-templated CuNPs and detecting the released copper ions with differential pulse stripping voltammetry. Because of the designed cascade signal amplification strategy, the newly developed method achieved a linear range of 0.05-500 fg/mL, with a remarkable detection limit of 0.020 ± 0.001 fg/mL PSA. Finally, the feasibility of the developed method for practical application was investigated by analyzing PSA in the real clinical human serum samples. The ultrasensitivity, specificity, convenience, and capability for analyzing the clinical samples demonstrate that this method has great potential for practical disease diagnosis applications.
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Affiliation(s)
- Ye Zhu
- Key Laboratory of Colloid and Interface Chemistry of Education Ministry, School of Chemistry and Chemical Engineering, Shandong University , Jinan 250100, China
| | - Huijuan Wang
- School of Pharmaceutical Sciences, Shandong University , Jinan 250012, China
| | - Lin Wang
- Department of Radiation Oncology, Qilu Hospital, Shandong University , Jinan 250012, China
| | - Jing Zhu
- Key Laboratory of Colloid and Interface Chemistry of Education Ministry, School of Chemistry and Chemical Engineering, Shandong University , Jinan 250100, China
| | - Wei Jiang
- Key Laboratory of Colloid and Interface Chemistry of Education Ministry, School of Chemistry and Chemical Engineering, Shandong University , Jinan 250100, China
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Zhu Y, Hu XC, Shi S, Gao RR, Huang HL, Zhu YY, Lv XY, Yao TM. Ultrasensitive and universal fluorescent aptasensor for the detection of biomolecules (ATP, adenosine and thrombin) based on DNA/Ag nanoclusters fluorescence light-up system. Biosens Bioelectron 2015; 79:205-12. [PMID: 26706942 DOI: 10.1016/j.bios.2015.12.015] [Citation(s) in RCA: 79] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2015] [Revised: 12/07/2015] [Accepted: 12/10/2015] [Indexed: 10/22/2022]
Abstract
We report here an ultrasensitive strategy based on the recognition-induced conformational alteration of aptamer and fluorescence turn-on abilities of guanine-rich (G-rich) DNA sequence in proximity to silver nanoclusters for adenosine triphosphate (ATP), adenosine (A) and thrombin (TB) detection. Herein, we designed two tailored DNA sequences noted as complementary DNA (abbreviated as c-DNA) and signal probe DNA (abbreviated as s-DNA), respectively. c-DNA is designed as a special structure consisting of a sequence complementary to aptamer at the 3'-end and a guanine-rich DNA sequence at the 5'-end; s-DNA contains a cytosine-rich sequence responsible for Ag NCs templated synthesis at the 3'-end and a link sequence (part of aptamer) complementary to partial of the c-DNA at the 5'-end. In the presence of target, the aptamer associated with the target, resulting in the formation of duplex DNA (dsDNA), the DNA-Ag NCs thereafter could close to the guanine-rich sequence, leading to enhanced fluorescence signal readout. The widespread application of the sensing system is achieved success in the detection of three biomolecules. ATP, adenosine and thrombin in the range of 0.5-8.0 μM, 0.5-7.0 μM and 50-900 nM could be linearly detected with the detection limits of 91.6 nM, 103.4 nM and 8.4 nM, respectively. This label-free and turn-on fluorescent sensing system employing the mechanism proposed here turns out to be sensitive, selective, and convenient for the detection of biomolecules without washing and separation steps.
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Affiliation(s)
- Ying Zhu
- Department of Chemistry, and Shanghai Key Lab of Chemical Assessment and Sustainability, Tongji University, Shanghai 200092, China
| | - Xiao-Chun Hu
- Department of Chemistry, and Shanghai Key Lab of Chemical Assessment and Sustainability, Tongji University, Shanghai 200092, China
| | - Shuo Shi
- Department of Chemistry, and Shanghai Key Lab of Chemical Assessment and Sustainability, Tongji University, Shanghai 200092, China.
| | - Ru-Ru Gao
- Department of Chemistry, and Shanghai Key Lab of Chemical Assessment and Sustainability, Tongji University, Shanghai 200092, China
| | - Hai-Liang Huang
- Department of Chemistry, and Shanghai Key Lab of Chemical Assessment and Sustainability, Tongji University, Shanghai 200092, China
| | - Yan-Yan Zhu
- Department of Chemistry, and Shanghai Key Lab of Chemical Assessment and Sustainability, Tongji University, Shanghai 200092, China
| | - Xiao-Yan Lv
- Department of Chemistry, and Shanghai Key Lab of Chemical Assessment and Sustainability, Tongji University, Shanghai 200092, China
| | - Tian-Ming Yao
- Department of Chemistry, and Shanghai Key Lab of Chemical Assessment and Sustainability, Tongji University, Shanghai 200092, China.
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Abstract
Isothermal amplification of nucleic acids is a simple process that rapidly and efficiently accumulates nucleic acid sequences at constant temperature. Since the early 1990s, various isothermal amplification techniques have been developed as alternatives to polymerase chain reaction (PCR). These isothermal amplification methods have been used for biosensing targets such as DNA, RNA, cells, proteins, small molecules, and ions. The applications of these techniques for in situ or intracellular bioimaging and sequencing have been amply demonstrated. Amplicons produced by isothermal amplification methods have also been utilized to construct versatile nucleic acid nanomaterials for promising applications in biomedicine, bioimaging, and biosensing. The integration of isothermal amplification into microsystems or portable devices improves nucleic acid-based on-site assays and confers high sensitivity. Single-cell and single-molecule analyses have also been implemented based on integrated microfluidic systems. In this review, we provide a comprehensive overview of the isothermal amplification of nucleic acids encompassing work published in the past two decades. First, different isothermal amplification techniques are classified into three types based on reaction kinetics. Then, we summarize the applications of isothermal amplification in bioanalysis, diagnostics, nanotechnology, materials science, and device integration. Finally, several challenges and perspectives in the field are discussed.
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Affiliation(s)
- Yongxi Zhao
- Key Laboratory of Biomedical Information Engineering of Education Ministry, School of Life Science and Technology, Xi'an Jiaotong University , Xianning West Road, Xi'an, Shaanxi 710049, China
| | - Feng Chen
- Key Laboratory of Biomedical Information Engineering of Education Ministry, School of Life Science and Technology, Xi'an Jiaotong University , Xianning West Road, Xi'an, Shaanxi 710049, China
| | - Qian Li
- Division of Physical Biology, and Bioimaging Center, Shanghai Synchrotron Radiation Facility, CAS Key Laboraotory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences , Shanghai 201800, China
| | - Lihua Wang
- Division of Physical Biology, and Bioimaging Center, Shanghai Synchrotron Radiation Facility, CAS Key Laboraotory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences , Shanghai 201800, China
| | - Chunhai Fan
- Division of Physical Biology, and Bioimaging Center, Shanghai Synchrotron Radiation Facility, CAS Key Laboraotory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences , Shanghai 201800, China.,School of Life Science & Technology, ShanghaiTech University , Shanghai 200031, China
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