1
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Tao S, Han X, Shi D, Yu T, Long Y, Zou S, Lu S, Song L, Liu G. Portable Device with Nicking Enzyme Enhanced Special RCA on μPADs toward Sensitive Detection of High-Risk HPV Infection. Anal Chem 2024. [PMID: 38912660 DOI: 10.1021/acs.analchem.4c02070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/25/2024]
Abstract
Development of an accurate, rapid, and cost-effective portable device is in high demand for point-of-care molecular diagnosis toward disease screening. Here we report a one-pot homogeneous isothermal assay that leverages nicking endonuclease and minimum secondary structured rolling circle amplification (N-MSSRCA) for fast and sensitive quantification of nucleic acids on distance microfluidic paper-based analytical devices (dμPAD) by a portable custom-made fluorescence detector. Human papillomavirus (HPV) oncogenic E7 mRNA as the biomarker for cervical cancer was used as the model analyte. N-MSSRCA integrates ligase for target recognition, the nicking enzyme for primer generation, and the dual function of the Phi29 DNA polymerase for both on- and off-loop amplification. The proposed method was capable of detecting 1 and 10 fM of the analyte using the microplate reader and portable detector with dμPAD, respectively, with ∼1 h assay time. A cohort study of 40 cervical swab samples shows N-MSSRCA reached positive and negative predictive values of 87.5% and 93.5% using the portable detector with dμPAD, compared to 91.67% and 100% using the microplate reader. N-MSSRCA demonstrates potential in early screening of high-risk HPV infection as a generic strategy to detect various nucleic acids in point-of-care scenarios.
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Affiliation(s)
- Shurui Tao
- Integrated Devices and Intelligent Diagnosis (ID2) Laboratory, CUHK(SZ)-Boyalife Joint Laboratory for Regenerative Medicine Engineering, School of Medicine, The Chinese University of Hong Kong, Shenzhen 518172, China
| | - Xin Han
- Integrated Devices and Intelligent Diagnosis (ID2) Laboratory, CUHK(SZ)-Boyalife Joint Laboratory for Regenerative Medicine Engineering, School of Medicine, The Chinese University of Hong Kong, Shenzhen 518172, China
| | - Dongni Shi
- Department of Experimental Research, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
| | - Tian Yu
- Integrated Devices and Intelligent Diagnosis (ID2) Laboratory, CUHK(SZ)-Boyalife Joint Laboratory for Regenerative Medicine Engineering, School of Medicine, The Chinese University of Hong Kong, Shenzhen 518172, China
| | - Yingxi Long
- Integrated Devices and Intelligent Diagnosis (ID2) Laboratory, CUHK(SZ)-Boyalife Joint Laboratory for Regenerative Medicine Engineering, School of Medicine, The Chinese University of Hong Kong, Shenzhen 518172, China
| | - Siyi Zou
- Integrated Devices and Intelligent Diagnosis (ID2) Laboratory, CUHK(SZ)-Boyalife Joint Laboratory for Regenerative Medicine Engineering, School of Medicine, The Chinese University of Hong Kong, Shenzhen 518172, China
| | - Sheng Lu
- Integrated Devices and Intelligent Diagnosis (ID2) Laboratory, CUHK(SZ)-Boyalife Joint Laboratory for Regenerative Medicine Engineering, School of Medicine, The Chinese University of Hong Kong, Shenzhen 518172, China
| | - Libing Song
- Department of Experimental Research, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
| | - Guozhen Liu
- Integrated Devices and Intelligent Diagnosis (ID2) Laboratory, CUHK(SZ)-Boyalife Joint Laboratory for Regenerative Medicine Engineering, School of Medicine, The Chinese University of Hong Kong, Shenzhen 518172, China
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2
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Li H, Lu H, Tang Y, Wang H, Xiao Y, Li B. A Rebuilding‐Free Nucleic Acid Detection Strategy Enables Ultrasensitive Genotyping, N‐in‐1 Logic Screening and Accurate Multiplex Assay of Dangerous Pathogens. Angew Chem Int Ed Engl 2022; 61:e202209496. [DOI: 10.1002/anie.202209496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Indexed: 11/11/2022]
Affiliation(s)
- Huan Li
- State Key Lab 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
| | - Huiying Lu
- School of Life Sciences Northeast Normal University Changchun Jilin, 130024 China
| | - Yidan Tang
- State Key Lab of Electroanalytical Chemistry Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun Jilin, 130022 China
| | - Huaning Wang
- State Key Lab 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
| | - Yao Xiao
- State Key Lab 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
| | - Bingling Li
- State Key Lab 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
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3
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Li H, Lu H, Tang Y, Wang H, Xiao Y, Li B. A Rebuilding‐Free Nucleic Acid Detection Strategy Enables Ultrasensitive Genotyping, N‐in‐1 Logic Screening and Accurate Multiplex Assay of Dangerous Pathogens. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202209496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Huan Li
- Changchun Institute of Applied Chemistry Chinese Academy of Sciences: Chang Chun Institute of Applied Chemistry Chinese Academy of Sciences State Key Lab of Electroanalytical Chemistry Changchun Institute of Applied Chemistry 130022 Changchun CHINA
| | - Huiying Lu
- Northeast Normal University School of Life Sciences CHINA
| | - Yidan Tang
- Changchun Institute of Applied Chemistry Chinese Academy of Sciences: Chang Chun Institute of Applied Chemistry Chinese Academy of Sciences State Key Lab of Electroanalytical Chemistry 5625 Remin StreetChangchun 130022 Changchun CHINA
| | - Huaning Wang
- Changchun Institute of Applied Chemistry Chinese Academy of Sciences: Chang Chun Institute of Applied Chemistry Chinese Academy of Sciences State Key Lab of Electroanalytical Chemistry CHINA
| | - Yao Xiao
- Changchun Institute of Applied Chemistry Chinese Academy of Sciences: Chang Chun Institute of Applied Chemistry Chinese Academy of Sciences State Key Lab of Electroanalytical Chemistry CHINA
| | - Bingling Li
- Changchun Institute of Applied Chemistry, Chinese Academy of Science State Key Lab of Electroanalytical Chemistry 5625 Renmin Street 130022 Changchun CHINA
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4
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Bialy RM, Li Y, Brennan JD. Target-Dependent Protection of DNA Aptamers against Nucleolytic Digestion Enables Signal-On Biosensing with Toehold-Mediated Rolling Circle Amplification. Chemistry 2021; 27:14543-14549. [PMID: 34437748 DOI: 10.1002/chem.202102975] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Indexed: 02/06/2023]
Abstract
We report a generalizable strategy for biosensing that takes advantage of the resistance of DNA aptamers against nuclease digestion when bound with their targets, coupled with toehold mediated strand displacement (TMSD) and rolling circle amplification (RCA). A DNA aptamer containing a toehold extension at its 5'-end protects it from 3'-exonuclease digestion by phi29 DNA polymerase (phi29 DP) in a concentration-dependent manner. The protected aptamer can participate in RCA in the presence of a circular template that is designed to free the aptamer from its target via TMSD. The absence of the target leads to aptamer digestion, and thus no RCA product is produced, resulting in a turn-on sensor. Using two different DNA aptamers, we demonstrate rapid and quantitative real-time fluorescence detection of two human proteins: platelet-derived growth factor (PDGF) and thrombin. Sensitive detection of PDGF was also achieved in human serum and human plasma, demonstrating the selectivity of the assay.
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Affiliation(s)
- Roger M Bialy
- Biointerfaces Institute, McMaster University, 1280 Main Street West, Hamilton, ON, L8S 4O3, Canada
| | - Yingfu Li
- Biointerfaces Institute, McMaster University, 1280 Main Street West, Hamilton, ON, L8S 4O3, Canada.,Department of Biochemistry and Biomedical Sciences, McMaster University, 1280 Main Street West, Hamilton, ON, L8S 4K1, Canada
| | - John D Brennan
- Biointerfaces Institute, McMaster University, 1280 Main Street West, Hamilton, ON, L8S 4O3, Canada
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5
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Bialy RM, Li Y, Brennan JD. Target-Mediated 5'-Exonuclease Digestion of DNA Aptamers with RecJ to Modulate Rolling Circle Amplification for Biosensing. Chembiochem 2021; 23:e202100476. [PMID: 34643997 DOI: 10.1002/cbic.202100476] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 09/29/2021] [Indexed: 11/11/2022]
Abstract
We report a new method for biosensing based on the target-mediated resistance of DNA aptamers against 5'-exonuclease digestion, allowing them to act as primers for rolling circle amplification (RCA). A target-bound DNA strand containing an aptamer region on the 5'-end and a primer region on the 3'-end is protected from 5'-exonuclease digestion by RecJ exonuclease in a target-dependent manner. As the protected aptamer is at the 5'-end, the exposed primer on the 3'-end can participate in RCA in the presence of a circular template to generate a turn-on sensor. Without target, RecJ digests the primer and prevents RCA from occurring, allowing quantitative fluorescence detection of both thrombin, a protein, and ochratoxin A (OTA), a small molecule, at picomolar concentrations.
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Affiliation(s)
- Roger M Bialy
- Biointerfaces Institute, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4O3, Canada
| | - Yingfu Li
- Biointerfaces Institute, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4O3, Canada.,Department of Biochemistry and Biomedical Sciences, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4K1, Canada
| | - John D Brennan
- Biointerfaces Institute, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4O3, Canada
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6
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Li J, Mohammed-Elsabagh M, Paczkowski F, Li Y. Circular Nucleic Acids: Discovery, Functions and Applications. Chembiochem 2020; 21:1547-1566. [PMID: 32176816 DOI: 10.1002/cbic.202000003] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Revised: 02/13/2020] [Indexed: 12/14/2022]
Abstract
Circular nucleic acids (CNAs) are nucleic acid molecules with a closed-loop structure. This feature comes with a number of advantages including complete resistance to exonuclease degradation, much better thermodynamic stability, and the capability of being replicated by a DNA polymerase in a rolling circle manner. Circular functional nucleic acids, CNAs containing at least a ribozyme/DNAzyme or a DNA/RNA aptamer, not only inherit the advantages of CNAs but also offer some unique application opportunities, such as the design of topology-controlled or enabled molecular devices. This article will begin by summarizing the discovery, biogenesis, and applications of naturally occurring CNAs, followed by discussing the methods for constructing artificial CNAs. The exploitation of circular functional nucleic acids for applications in nanodevice engineering, biosensing, and drug delivery will be reviewed next. Finally, the efforts to couple functional nucleic acids with rolling circle amplification for ultra-sensitive biosensing and for synthesizing multivalent molecular scaffolds for unique applications in biosensing and drug delivery will be recapitulated.
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Affiliation(s)
- Jiuxing Li
- M.G. DeGroote Institute for Infectious Disease Research Department of Biochemistry and Biomedical Sciences, McMaster University, 1280 Main Street West, Hamilton, L8S 4K1, Canada
| | - Mostafa Mohammed-Elsabagh
- M.G. DeGroote Institute for Infectious Disease Research Department of Biochemistry and Biomedical Sciences, McMaster University, 1280 Main Street West, Hamilton, L8S 4K1, Canada
| | - Freeman Paczkowski
- M.G. DeGroote Institute for Infectious Disease Research Department of Biochemistry and Biomedical Sciences, McMaster University, 1280 Main Street West, Hamilton, L8S 4K1, Canada
| | - Yingfu Li
- M.G. DeGroote Institute for Infectious Disease Research Department of Biochemistry and Biomedical Sciences, McMaster University, 1280 Main Street West, Hamilton, L8S 4K1, Canada
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7
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Bialy RM, Ali MM, Li Y, Brennan JD. Protein-Mediated Suppression of Rolling Circle Amplification for Biosensing with an Aptamer-Containing DNA Primer. Chemistry 2020; 26:5085-5092. [PMID: 32096262 DOI: 10.1002/chem.202000245] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 02/21/2020] [Indexed: 12/22/2022]
Abstract
We report a method to detect proteins via suppression of rolling circle amplification (RCA) by using an appropriate aptamer as the linear primer (denoted as an aptaprimer) to initiate RCA. In the absence of a protein target, the aptaprimer is free to initiate RCA, which can produce long DNA products that are detected via binding of a fluorescent intercalating dye. Introduction of a target causes the primer region within the aptamer to become unavailable for binding to the circular template, inhibiting RCA. Using SYBR Gold or QuantiFluor dyes as fluorescent probes to bind to the RCA reaction product, it is possible to produce a generic protein-modulated RCA assay system that does not require fluorophore- or biotin-modified DNA species, substantially reducing complexity and cost of reagents. Based on this modulation of RCA, we demonstrate the ability to produce both solution and paper-based assays for rapid and quantitative detection of proteins including platelet derived growth factor and thrombin.
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Affiliation(s)
- Roger M Bialy
- Biointerfaces Institute, McMaster University, 1280 Main Street West, Hamilton, ON, L8S 4O3, Canada
| | - Monsur M Ali
- Biointerfaces Institute, McMaster University, 1280 Main Street West, Hamilton, ON, L8S 4O3, Canada
| | - Yingfu Li
- Biointerfaces Institute, McMaster University, 1280 Main Street West, Hamilton, ON, L8S 4O3, Canada.,Department of Biochemistry and Biomedical Sciences, McMaster University, 1280 Main Street West, Hamilton, ON, L8S 4K1, Canada
| | - John D Brennan
- Biointerfaces Institute, McMaster University, 1280 Main Street West, Hamilton, ON, L8S 4O3, Canada
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8
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Samani SE, Chang D, McConnell EM, Rothenbroker M, Filipe CDM, Li Y. Highly Sensitive RNA-Cleaving DNAzyme Sensors from Surface-to-Surface Product Enrichment. Chembiochem 2019; 21:632-637. [PMID: 31544309 DOI: 10.1002/cbic.201900575] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Indexed: 12/13/2022]
Abstract
The engineering of easy-to-use biosensors with ultra-low detection sensitivity remains a major challenge. Herein, we report a simple approach for creating such sensors through the use of an RNA-cleaving DNAzyme (RcD) and a strategy designed to concentrate its cleavage product significantly. The assay uses micron-sized beads loaded with a target-responsive RcD and a paper strip containing a microzone covered with a DNA oligonucleotide capable of capturing the cleavage product of the RcD through Watson-Crick hybridization. Placing the beads and the paper strip in a target-containing test sample allows the bead-bound RcD molecules to undergo target-induced RNA cleavage, releasing a DNA fragment that is captured by the paper strip. This strategy, though simple, is very effective in achieving high levels of detection sensitivity, being able to enrich the concentration of the cleavage product by three orders of magnitude. It is also compatible with both fluorescence-based and colorimetric reporting mechanisms. This work provides a simple platform for developing ultrasensitive biosensors that take advantage of the widely available RcDs as molecular recognition elements.
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Affiliation(s)
- Sahar Esmaeili Samani
- Department of Chemical Engineering, McMaster University, 1280 Main Street West, Hamilton, ON, L8S 4K1, Canada
| | - Dingran Chang
- Department of Biochemistry and Biomedical Sciences, McMaster University, 1280 Main Street West, Hamilton, ON, L8S 4K1, Canada
| | - Erin M McConnell
- Department of Biochemistry and Biomedical Sciences, McMaster University, 1280 Main Street West, Hamilton, ON, L8S 4K1, Canada
| | - Meghan Rothenbroker
- Department of Biochemistry and Biomedical Sciences, McMaster University, 1280 Main Street West, Hamilton, ON, L8S 4K1, Canada
| | - Carlos D M Filipe
- Department of Chemical Engineering, McMaster University, 1280 Main Street West, Hamilton, ON, L8S 4K1, Canada
| | - Yingfu Li
- Department of Biochemistry and Biomedical Sciences, McMaster University, 1280 Main Street West, Hamilton, ON, L8S 4K1, Canada
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9
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Liu M, Yin Q, Chang Y, Zhang Q, Brennan JD, Li Y. In Vitro Selection of Circular DNA Aptamers for Biosensing Applications. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201901192] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Meng Liu
- School of Environmental Science and Technology Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education) Dalian University of Technology Dalian 116024 China
| | - Qingxin Yin
- School of Environmental Science and Technology Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education) Dalian University of Technology Dalian 116024 China
| | - Yangyang Chang
- School of Environmental Science and Technology Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education) Dalian University of Technology Dalian 116024 China
| | - Qiang Zhang
- Biointerfaces Institute McMaster University 1280 Main Street West Hamilton Ontario L8S4O3 Canada
- School of Life Science and Biotechnology Dalian University of Technology Dalian 116024 China
| | - John D. Brennan
- Biointerfaces Institute McMaster University 1280 Main Street West Hamilton Ontario L8S4O3 Canada
| | - Yingfu Li
- Department of Biochemistry and Biomedical Sciences McMaster University 1280 Main Street West Hamilton Ontario L8S4K1 Canada
- Biointerfaces Institute McMaster University 1280 Main Street West Hamilton Ontario L8S4O3 Canada
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10
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Liu M, Yin Q, Chang Y, Zhang Q, Brennan JD, Li Y. In Vitro Selection of Circular DNA Aptamers for Biosensing Applications. Angew Chem Int Ed Engl 2019; 58:8013-8017. [PMID: 31020784 DOI: 10.1002/anie.201901192] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 04/17/2019] [Indexed: 01/01/2023]
Abstract
We report on the first effort to select DNA aptamers from a circular DNA library, which resulted in the discovery of two high-affinity circular DNA aptamers that recognize the glutamate dehydrogenase (GDH) from Clostridium difficile, an established antigen for diagnosing Clostridium difficile infection (CDI). One aptamer binds effectively in both the circular and linear forms, the other is functional only in the circular configuration. Interestingly, these two aptamers recognize different epitopes on GDH, demonstrating the advantage of selecting aptamers from circular DNA libraries. A sensitive diagnostic test was developed to take advantage of the high stability of circular DNA aptamers in biological samples and their compatibility with rolling circle amplification. This test is capable of identifying patients with active CDI using stool samples. This work represents a significant step forward towards demonstrating the practical utility of DNA aptamers in clinical diagnosis.
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Affiliation(s)
- Meng Liu
- School of Environmental Science and Technology, Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), Dalian University of Technology, Dalian, 116024, China
| | - Qingxin Yin
- School of Environmental Science and Technology, Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), Dalian University of Technology, Dalian, 116024, China
| | - Yangyang Chang
- School of Environmental Science and Technology, Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), Dalian University of Technology, Dalian, 116024, China
| | - Qiang Zhang
- Biointerfaces Institute, McMaster University, 1280 Main Street West, Hamilton, Ontario, L8S4O3, Canada.,School of Life Science and Biotechnology, Dalian University of Technology, Dalian, 116024, China
| | - John D Brennan
- Biointerfaces Institute, McMaster University, 1280 Main Street West, Hamilton, Ontario, L8S4O3, Canada
| | - Yingfu Li
- Department of Biochemistry and Biomedical Sciences, McMaster University, 1280 Main Street West, Hamilton, Ontario, L8S4K1, Canada.,Biointerfaces Institute, McMaster University, 1280 Main Street West, Hamilton, Ontario, L8S4O3, Canada
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11
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Liu M, Yin Q, McConnell EM, Chang Y, Brennan JD, Li Y. DNAzyme Feedback Amplification: Relaying Molecular Recognition to Exponential DNA Amplification. Chemistry 2018; 24:4473-4479. [PMID: 29240289 DOI: 10.1002/chem.201705338] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Indexed: 01/10/2023]
Abstract
Technologies capable of linking DNA amplification to molecular recognition are very desirable for ultrasensitive biosensing applications. We have developed a simple but powerful isothermal DNA amplification method, termed DNAzyme feedback amplification (DFA), that is capable of relaying molecular recognition to exponential DNA amplification. The method incorporates both an RNA-cleaving DNAzyme (RCD) and rolling circle amplification (RCA) carried out by a special DNA polymerase using a circular DNA template. DFA begins with a stimulus-dependent RCA reaction, producing tandemly linked RCDs in long-chain DNA products. These RCDs cleave an RNA-containing DNA sequence to form additional primers that hybridize to the circular DNA molecule, giving rise to DNA assemblies that act as the new inputs for RCA. The RCA reaction and the cleavage event keep on feeding each other autonomously, resulting in exponential growth of repetitive DNA sequences that can be easily detected. This method can be used for the detection of both nucleic acid based targets and non-nucleic acid analytes. In this article, we discuss the conceptual framework of the feedback amplification approach, the essential features of this method as well as remaining challenges and possible solutions.
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Affiliation(s)
- Meng Liu
- School of Environmental Science and Technology, Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), Dalian University of Technology, Dalian, 116024, P. R. China
| | - Qingxin Yin
- School of Environmental Science and Technology, Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), Dalian University of Technology, Dalian, 116024, P. R. China
| | - Erin M McConnell
- Department of Biochemistry and Biomedical Sciences and Chemistry & Chemical Biology, McMaster University, 1280 Main Street West, Hamilton, ON, L8S 4K1, Canada
| | - Yangyang Chang
- School of Environmental Science and Technology, Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), Dalian University of Technology, Dalian, 116024, P. R. China
| | - John D Brennan
- Biointerfaces Institute, McMaster University, 1280 Main Street West, Hamilton, ON, L8S 4L8, Canada
| | - Yingfu Li
- Department of Biochemistry and Biomedical Sciences and Chemistry & Chemical Biology, McMaster University, 1280 Main Street West, Hamilton, ON, L8S 4K1, Canada.,Biointerfaces Institute, McMaster University, 1280 Main Street West, Hamilton, ON, L8S 4L8, Canada
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12
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13
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Liu M, Zhang Q, Chang D, Gu J, Brennan JD, Li Y. A DNAzyme Feedback Amplification Strategy for Biosensing. Angew Chem Int Ed Engl 2017; 56:6142-6146. [PMID: 28370773 DOI: 10.1002/anie.201700054] [Citation(s) in RCA: 104] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2017] [Revised: 03/05/2017] [Indexed: 12/20/2022]
Affiliation(s)
- Meng Liu
- Department of Biochemistry and Biomedical Sciences and Chemistry & Chemical Biology; McMaster University; 1280 Main Street West Hamilton ON L8S 4K1 Canada
- Biointerfaces Institute; McMaster University; 1280 Main Street West Hamilton ON L8S 4L8 Canada
| | - Qiang Zhang
- Biointerfaces Institute; McMaster University; 1280 Main Street West Hamilton ON L8S 4L8 Canada
| | - Dingran Chang
- Department of Biochemistry and Biomedical Sciences and Chemistry & Chemical Biology; McMaster University; 1280 Main Street West Hamilton ON L8S 4K1 Canada
| | - Jimmy Gu
- Department of Biochemistry and Biomedical Sciences and Chemistry & Chemical Biology; McMaster University; 1280 Main Street West Hamilton ON L8S 4K1 Canada
| | - John D. Brennan
- Biointerfaces Institute; McMaster University; 1280 Main Street West Hamilton ON L8S 4L8 Canada
| | - Yingfu Li
- Department of Biochemistry and Biomedical Sciences and Chemistry & Chemical Biology; McMaster University; 1280 Main Street West Hamilton ON L8S 4K1 Canada
- Biointerfaces Institute; McMaster University; 1280 Main Street West Hamilton ON L8S 4L8 Canada
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