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Lin X, Fang Y, Chen Q, Guo Z, Chen X, Chen X. Magnetically actuated microfluidic chip combined with a G-quadruplex DNAzyme-based fluorescent/colorimetric sensor for the dual-mode detection of ochratoxin A in wheat. Talanta 2024; 267:125273. [PMID: 37804790 DOI: 10.1016/j.talanta.2023.125273] [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: 08/05/2023] [Revised: 09/28/2023] [Accepted: 10/02/2023] [Indexed: 10/09/2023]
Abstract
In this work, a portable fluorescent/colorimetric sensor based on G-quadruplex DNAzyme was constructed to achieve rapid and dual-mode detection of ochratoxin A (OTA) in wheat. OTA aptamers coupled with magnetic beads (MBs) can self-assemble with two segments of DNA and hemin to form a G-quadruplex DNAzyme structure that can catalyze the oxidation of Amplex Red (ADHP) with H2O2, making the solution red and producing strong fluorescence in solution. However, in the presence of OTA, the structure of the G-quadruplex DNAzyme was damaged, resulting in reduced catalytic activity. According to the principle of detection, a magnet-controlled chip integrating the reaction, washing, and detection was designed in this study. Shuttling the MB-DNAzyme probes onto a magnetically controlled chip considerably reduced the background signal and improved the detection efficiency and sensitivity. In addition, a portable fluorescence and colorimetric detection platform was built for on-site OTA detection.
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Affiliation(s)
- Xueqi Lin
- College of Ocean Food and Biological Engineering, Jimei University, Xiamen, 361021, China.
| | - Yuwen Fang
- College of Ocean Food and Biological Engineering, Jimei University, Xiamen, 361021, China.
| | - Quansheng Chen
- College of Ocean Food and Biological Engineering, Jimei University, Xiamen, 361021, China.
| | - Zhiyong Guo
- Institute of Analytical Technology and Smart Instruments and Colleague of Environment and Public Healthy, Xiamen Huaxia University, Xiamen, 361024, China.
| | - Xi Chen
- State Key Laboratory of Marine Environmental Science, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China.
| | - Xiaomei Chen
- College of Ocean Food and Biological Engineering, Jimei University, Xiamen, 361021, China.
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2
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Zhang L, Wu H, Chen Y, Zhang S, Song M, Liu C, Li J, Cheng W, Ding S. Target response controlled enzyme activity switch for multimodal biosensing detection. J Nanobiotechnology 2023; 21:122. [PMID: 37031177 PMCID: PMC10082497 DOI: 10.1186/s12951-023-01860-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 03/16/2023] [Indexed: 04/10/2023] Open
Abstract
How to achieve delicate regulation of enzyme activity and empower it with more roles is the peak in the field of enzyme catalysis research. Traditional proteases or novel nano-enzymes are unable to achieve stimulus-responsive activity modulation due to their own structural limitations. Here, we propose a novel Controllable Enzyme Activity Switch, CEAS, based on hemin aggregation regulation, to deeply explore its regulatory mechanism and develop multimodal biosensing applications. The core of CEAS relies on the dimerizable inactivation of catalytically active center hemin and utilizes a DNA template to orderly guide the G4-Hemin DNAzyme to tightly bind to DNA-Hemin, thereby shutting down the catalytic ability. By customizing the design of the guide template, different target stimulus responses lead to hemin dimerization dissociation and restore the synergistic catalysis of G4-Hemin and DNA-Hemin, thus achieving a target-regulated enzymatic activity switch. Moreover, the programmability of CEAS allowed it easy to couple with a variety of DNA recognition and amplification techniques, thus developing a series of visual protein detection systems and highly sensitive fluorescent detection systems with excellent bioanalytical performance. Therefore, the construction of CEAS is expected to break the limitation of conventional enzymes that cannot be targetable regulated, thus enabling customizable enzymatic reaction systems and providing a new paradigm for controllable enzyme activities.
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Affiliation(s)
- Lu Zhang
- Key Laboratory of Clinical Laboratory Diagnostics (Ministry of Education), College of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - Haiping Wu
- Key Laboratory of Clinical Laboratory Diagnostics (Ministry of Education), College of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - Yirong Chen
- Key Laboratory of Clinical Laboratory Diagnostics (Ministry of Education), College of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - Songzhi Zhang
- Key Laboratory of Clinical Laboratory Diagnostics (Ministry of Education), College of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - Mingxuan Song
- Key Laboratory of Clinical Laboratory Diagnostics (Ministry of Education), College of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - Changjin Liu
- Department of Laboratory Medicine, The Fifth People's Hospital of Chongqing, Chongqing, 400062, China
| | - Jia Li
- The Center for Clinical Molecular Medical Detection, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, People's Republic of China.
| | - Wei Cheng
- The Center for Clinical Molecular Medical Detection, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, People's Republic of China.
| | - Shijia Ding
- Key Laboratory of Clinical Laboratory Diagnostics (Ministry of Education), College of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, People's Republic of China.
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3
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Zhang G, Zhang X, Zhang Q, Chen W, Wu S, Yang H, Zhou Y. MnO 2 nanosheets-triggered oxVB 1 fluorescence immunoassay for detection zearalenone. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 286:121954. [PMID: 36228491 DOI: 10.1016/j.saa.2022.121954] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 08/22/2022] [Accepted: 10/03/2022] [Indexed: 06/16/2023]
Abstract
In this study, an alkaline phosphatase (ALP)-mediated fluorescence immunoassay for detecting zearalenone (ZEN) was established based on the oxVB1 fluorescence signal modulated by MnO2 nanosheets (MnO2 NS). As the ALP-antibody content increased, more 2-phosphoascorbic acid (AAP) was hydrolyzed to ascorbic acid (AA) which destroyed the MnO2 NS rapidly. In the lack of MnO2 NS, VB1 cannot be oxidized to oxVB1 for emitting fluorescence. On the contrary, the fluorescence of oxVB1 recovered slowly with the decrease of the ALP-antibody concentration. In the optimization condition, the detection limit of this method was 15.5 pg mL-1. Moreover, the recovery of ZEN in real samples ranged from 94.24 % to 108.26 %, which indicated the remarkable accuracy and reliability of this approach. Meanwhile, the proposal of this fluorescence immunoassay provided a new possibility for detecting other targets by replacing antibodies and antigens.
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Affiliation(s)
- Guohao Zhang
- College of Animal Science, Yangtze University, Jingzhou 434025, China
| | - Xingping Zhang
- College of Life Science, Yangtze University, Jingzhou 434025, China; State Key Laboratory of Coordination Chemistry, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, China
| | - Qian Zhang
- College of Animal Science, Yangtze University, Jingzhou 434025, China
| | - Wang Chen
- College of Animal Science, Yangtze University, Jingzhou 434025, China
| | - Shixiang Wu
- College of Animal Science, Yangtze University, Jingzhou 434025, China
| | - Hualin Yang
- College of Animal Science, Yangtze University, Jingzhou 434025, China; College of Life Science, Yangtze University, Jingzhou 434025, China.
| | - Yu Zhou
- College of Animal Science, Yangtze University, Jingzhou 434025, China.
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4
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Lee S, Han MS. An analyte-triggered artificial peroxidase system based on dimanganese complex for a versatile enzyme assay. Chem Commun (Camb) 2021; 57:9450-9453. [PMID: 34528977 DOI: 10.1039/d1cc03638f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We described an analyte-activatable artificial peroxidase system (caged Mn2(bpmp)) by caging a dimanganese complex, exhibiting peroxidase-like activity, with an analyte-reactive trigger. It allowed adjustments of the detection target to be applied depending on the trigger as well as the detection modes, such as fluorescence and colorimetric, as required. This system was successfully applied to a versatile enzyme assay for leucine aminopeptidase and γ-glutamyl transpeptidase based on spectrophotometric change induced from the oxidation of the peroxidase substrate by analyte-triggered peroxidase-like activity.
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Affiliation(s)
- Suji Lee
- Department of Chemistry, Gwangju Institute of Science and Technology (GIST), 123 Cheomdangwagi-ro, Buk-gu, Gwangju 61005, Republic of Korea.
| | - Min Su Han
- Department of Chemistry, Gwangju Institute of Science and Technology (GIST), 123 Cheomdangwagi-ro, Buk-gu, Gwangju 61005, Republic of Korea.
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5
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Qu Z, Yu T, Liu Y, Bi L. Determination of butyrylcholinesterase activity based on thiamine luminescence modulated by MnO 2 nanosheets. Talanta 2021; 224:121831. [PMID: 33379049 DOI: 10.1016/j.talanta.2020.121831] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 10/15/2020] [Accepted: 10/28/2020] [Indexed: 10/23/2022]
Abstract
In this paper, a novel strategy for biosensing butyrylcholinesterase (BChE) activity is developed based on manganese dioxide (MnO2) nanosheets to modulate the photoluminescence of thiamine (TH). The oxidase-like activity of MnO2 nanosheets enables them to catalyze the oxidation of non-fluorescent substrate TH to generate strong fluorescent thiochrome (TC). When the target BChE is introduced to form thiocholine in the presence of S-butyrylthiocholine iodide (BTCh), MnO2 nanosheets are reduced by thiocholine to Mn2+, resulting in the loss of their oxidase-like activity and the reduction of TC fluorescence. Based on this, a BChE activity fluorescence biosensor is constructed utilizing the luminescence behavior variation of TH and the oxidase-like activity of MnO2 nanosheets. The fluorescence biosensor shows a sensitive response to BChE, and the detection limit reaches 0.036 U L-1. In addition, the feasibility of the biosensor in real samples analysis is studied with satisfactory results.
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Affiliation(s)
- Zhengyi Qu
- College of Chemistry, Jilin University, Changchun, 130012, PR China
| | - Tian Yu
- College of Electrical and Electronic Engineering, Changchun University of Technology, Changchun, 130012, PR China
| | - Yuzhong Liu
- Jilin University First Hospital, Changchun, 130021, PR China
| | - Lihua Bi
- College of Chemistry, Jilin University, Changchun, 130012, PR China.
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6
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Cao Y, Ding P, Yang L, Li W, Luo Y, Wang J, Pei R. Investigation and improvement of catalytic activity of G-quadruplex/hemin DNAzymes using designed terminal G-tetrads with deoxyadenosine caps. Chem Sci 2020; 11:6896-6906. [PMID: 34094131 PMCID: PMC8159390 DOI: 10.1039/d0sc01905d] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
It is generally acknowledged that G-quadruplexes (G4s) acquire peroxidase activity upon interaction with hemin. Hemin has been demonstrated to bind selectively to the 3′-terminal G-tetrad of parallel G4s via end-stacking; however, the relationships between different terminal G-tetrads and the catalytic functions of G4/hemin DNAzymes are not fully understood. Herein, the oligonucleotide d(AGGGGA) and its three analogues, d(AGBrGBrGGA), d(AGBrGGGBrA) and d(AGBrGGBrGA) (GBr indicates 8-bromo-2′-deoxyguanosine), were designed. These oligonucleotides form three parallel G4s and one antiparallel G4 without loop regions. The scaffolds had terminal G-tetrads that were either anti-deoxyguanosines (anti-dGs) or syn-deoxyguanosines (syn-dGs) at different proportions. The results showed that the parallel G4 DNAzymes exhibited 2 to 5-fold higher peroxidase activities than the antiparallel G4 DNAzyme, which is due to the absence of the 3′-terminal G-tetrad in the antiparallel G4. Furthermore, the 3′-terminal G-tetrad consisting of four anti-dGs in parallel G4s was more energetically favorable and thus more preferable for hemin stacking compared with that consisting of four syn-dGs. We further investigated the influence of 3′ and 5′ deoxyadenosine (dA) caps on the enzymatic performance by adding 3′-3′ or 5′-5′ phosphodiester bonds to AG4A. Our data demonstrated that 3′ dA caps are versatile residues in promoting the interaction of G4s with hemin. Thus, by increasing the number of 3′ dA caps, the DNAzyme of 3′A5′-5′GG3′-3′GG5′-5′A3′ with two 5′-terminal G-tetrads can exhibit significantly high catalytic activity, which is comparable to that of 5′A3′-3′GG5′-5′GG3′-3′A5′ with two 3′-terminal G-tetrads. This study may provide insights into the catalytic mechanism of G4-based DNAzymes and strategies for promoting their catalytic activities. Investigation of the peroxidase activities of G4/hemin DNAzymes using designed terminal G-tetrads by eliminating the steric effect of loop regions.![]()
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Affiliation(s)
- Yanwei Cao
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences Suzhou 215123 China
| | - Pi Ding
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences Suzhou 215123 China
| | - Luyan Yang
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences Suzhou 215123 China
| | - Wenjing Li
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences Suzhou 215123 China
| | - Yu Luo
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences Suzhou 215123 China
| | - Jine Wang
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences Suzhou 215123 China
| | - Renjun Pei
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences Suzhou 215123 China
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7
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Copper-based two-dimensional metal-organic framework nanosheets as horseradish peroxidase mimics for glucose fluorescence sensing. Anal Chim Acta 2019; 1079:164-170. [DOI: 10.1016/j.aca.2019.06.042] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Revised: 06/18/2019] [Accepted: 06/21/2019] [Indexed: 01/08/2023]
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8
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Yang S, Yang C, Huang D, Song L, Chen J, Yang Q. Recent Progress in Fluorescence Signal Design for DNA-Based Logic Circuits. Chemistry 2019; 25:5389-5405. [PMID: 30328639 DOI: 10.1002/chem.201804420] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Revised: 10/16/2018] [Indexed: 01/06/2023]
Abstract
DNA-based logic circuits, encoding algorithms in DNA and processing information, are pushing the frontiers of molecular computers forward, owing to DNA's advantages of stability, accessibility, manipulability, and especially inherent biological significance and potential medical application. In recent years, numerous logic functions, from arithmetic to nonarithmetic, have been realized based on DNA. However, DNA can barely provide a detectable signal by itself, so that the DNA-based circuits depend on extrinsic signal actuators. The signal strategy of carrying out a response is becoming one of the design focuses in DNA-based logic circuit construction. Although work on sequence and structure design for DNA-based circuits has been well reviewed, the strategy on signal production lacks comprehensive summary. In this review, we focused on the latest designs of fluorescent output for DNA-based logic circuits. Several basic strategies are summarized and a few designs for developing multi-output systems are provided. Finally, some current difficulties and possible opportunities were also discussed.
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Affiliation(s)
- Shu Yang
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China
| | - Chunrong Yang
- College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Dan Huang
- College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Lingbo Song
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China
| | - Jianchi Chen
- College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Qianfan Yang
- College of Chemistry, Sichuan University, Chengdu, 610064, China
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9
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Ran P, Zhu S, Song J, Wu J, Mo F, Fu Y. A widened emission window of the peroxydisulfate-oxygen system for the detection of L-alanine. Colloids Surf B Biointerfaces 2018; 169:418-421. [PMID: 29807340 DOI: 10.1016/j.colsurfb.2018.05.036] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2018] [Revised: 04/12/2018] [Accepted: 05/16/2018] [Indexed: 12/20/2022]
Abstract
Peroxydisulfate-oxygen (S2O82--O2) system has become one of the most used systems in electrogenerated chemiluminscence (ECL) field. Due to S2O82- can be used as Fenton Reagent, this work designed an ECL biosensor based on the S2O82--O2 system for the detection of L-alanine in a widened emission window and using hemin/G-quadruplex and platinum and palladium nanowires (Pt-Pd NWs) to in situ generate O2 to amplify the ECL intensity. The proposed ECL sensor showed an excellent analytical property for the detection of L-alanine in a linear range of 5.0 × 10-3 M to 1.0 × 10-8 M with the detection limit of 3.3 × 10-9 M (S/N = 3). This work with high selectivity, stability and reproducibility may open a new door to apply S2O82- in ECL field.
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Affiliation(s)
- Peiyao Ran
- Key Laboratory on Luminescence and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Shu Zhu
- Key Laboratory on Luminescence and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Jinyi Song
- Key Laboratory on Luminescence and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Jingling Wu
- Key Laboratory on Luminescence and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Fangjing Mo
- Key Laboratory on Luminescence and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Yingzi Fu
- Key Laboratory on Luminescence and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China.
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10
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Liu S, Xu N, Tan C, Fang W, Tan Y, Jiang Y. A sensitive colorimetric aptasensor based on trivalent peroxidase-mimic DNAzyme and magnetic nanoparticles. Anal Chim Acta 2018; 1018:86-93. [PMID: 29605139 DOI: 10.1016/j.aca.2018.01.040] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Accepted: 01/22/2018] [Indexed: 01/24/2023]
Abstract
In this study, a novel colorimetric aptasensor was prepared by coupling trivalent peroxidase-mimic DNAzyme and magnetic nanoparticles for highly sensitive and selective detection of target proteins. A three G-quadruplex (G4) DNA-hemin complex was employed as the trivalent peroxidase-mimic DNAzyme, in which hemin assisted the G4-DNA to fold into a catalytic conformation and act as an enzyme. The design of the aptasensor includes magnetic nanoparticles (MNPs), complementary DNA (cDNA) modified with biotin, and a label-free single strand DNA (ssDNA) including the aptamer and trivalent peroxidase-mimic DNAzyme. The trivalent DNAzyme, which has the highest catalytic activity among multivalent DNAzymes, catalyzed the H2O2-mediated oxidation of ABTS. The colorless ABTS was oxidized to produce a blue-green product that can be clearly distinguished by the naked eye. The aptamer and trivalent peroxidase-mimic DNAzyme promote the specificity and sensitivity of this detection method, which can be generalized for other targets by simply replacing the corresponding aptamers. To demonstrate the feasible use of the aptasensor for target detection, a well-known tumor biomarker MUC1 was evaluated as the model target. The limits of detection were determined to be 5.08 and 5.60 nM in a linear range of 50-1000 nM in a buffer solution and 10% serum system, respectively. This colorimetric and label-free aptasensor with excellent sensitivity and strong anti-interference ability has potential application in disease diagnoses, prognosis tracking, and therapeutic evaluation.
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Affiliation(s)
- Shuwen Liu
- Department of Chemistry, Tsinghua University, Beijing 100084, China; State Key Laboratory of Chemical Oncogenomics, The Graduate School at Shenzhen, Tsinghua University, Shenzhen, Guangdong 518055, China
| | - Naihan Xu
- State Key Laboratory of Chemical Oncogenomics, The Graduate School at Shenzhen, Tsinghua University, Shenzhen, Guangdong 518055, China
| | - Chunyan Tan
- Department of Chemistry, Tsinghua University, Beijing 100084, China; State Key Laboratory of Chemical Oncogenomics, The Graduate School at Shenzhen, Tsinghua University, Shenzhen, Guangdong 518055, China
| | - Wei Fang
- Department of Chemistry, Tsinghua University, Beijing 100084, China; State Key Laboratory of Chemical Oncogenomics, The Graduate School at Shenzhen, Tsinghua University, Shenzhen, Guangdong 518055, China
| | - Ying Tan
- Department of Chemistry, Tsinghua University, Beijing 100084, China; State Key Laboratory of Chemical Oncogenomics, The Graduate School at Shenzhen, Tsinghua University, Shenzhen, Guangdong 518055, China.
| | - Yuyang Jiang
- State Key Laboratory of Chemical Oncogenomics, The Graduate School at Shenzhen, Tsinghua University, Shenzhen, Guangdong 518055, China; School of Pharmaceutical Sciences, Tsinghua University, Beijing 100084, China
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11
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Fan D, Zhu X, Dong S, Wang E. Tyramine Hydrochloride Based Label-Free System for Operating Various DNA Logic Gates and a DNA Caliper for Base Number Measurements. Chemphyschem 2017; 18:1767-1772. [DOI: 10.1002/cphc.201601291] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Indexed: 01/13/2023]
Affiliation(s)
- Daoqing Fan
- State Key Laboratory of Electroanalytical Chemistry; Changchun Institute of Applied Chemistry; Chinese Academy of Sciences; Changchun Jilin 130022 P.R. China
- University of Chinese Academy of Sciences; Beijing 100039 P.R. China
| | - Xiaoqing Zhu
- State Key Laboratory of Electroanalytical Chemistry; Changchun Institute of Applied Chemistry; Chinese Academy of Sciences; Changchun Jilin 130022 P.R. China
- University of Chinese Academy of Sciences; Beijing 100039 P.R. China
| | - Shaojun Dong
- State Key Laboratory of Electroanalytical Chemistry; Changchun Institute of Applied Chemistry; Chinese Academy of Sciences; Changchun Jilin 130022 P.R. China
- University of Chinese Academy of Sciences; Beijing 100039 P.R. China
| | - Erkang Wang
- State Key Laboratory of Electroanalytical Chemistry; Changchun Institute of Applied Chemistry; Chinese Academy of Sciences; Changchun Jilin 130022 P.R. China
- University of Chinese Academy of Sciences; Beijing 100039 P.R. China
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12
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Lin S, Wang W, Hu C, Yang G, Ko CN, Ren K, Leung CH, Ma DL. The application of a G-quadruplex based assay with an iridium(iii) complex to arsenic ion detection and its utilization in a microfluidic chip. J Mater Chem B 2017; 5:479-484. [DOI: 10.1039/c6tb02656g] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
In this work, the iridium(iii) complex 1 was synthesized and employed in constructing an assay which is based on a G-quadruplex for detecting arsenic ions in aqueous solution.
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Affiliation(s)
- Sheng Lin
- Department of Chemistry
- Hong Kong Baptist University
- Kowloon Tong
- China
| | - Wanhe Wang
- Department of Chemistry
- Hong Kong Baptist University
- Kowloon Tong
- China
| | - Chong Hu
- Department of Chemistry
- Hong Kong Baptist University
- Kowloon Tong
- China
| | - Guanjun Yang
- State Key Laboratory of Quality Research in Chinese Medicine
- Institute of Chinese Medical Sciences
- University of Macau
- Macao
- China
| | - Chung-Nga Ko
- Department of Chemistry
- Hong Kong Baptist University
- Kowloon Tong
- China
| | - Kangning Ren
- Department of Chemistry
- Hong Kong Baptist University
- Kowloon Tong
- China
| | - Chung-Hang Leung
- State Key Laboratory of Quality Research in Chinese Medicine
- Institute of Chinese Medical Sciences
- University of Macau
- Macao
- China
| | - Dik-Lung Ma
- Department of Chemistry
- Hong Kong Baptist University
- Kowloon Tong
- China
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13
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Lin S, Lu L, Liu JB, Liu C, Kang TS, Yang C, Leung CH, Ma DL. A G-quadruplex-selective luminescent iridium(III) complex and its application by long lifetime. Biochim Biophys Acta Gen Subj 2016; 1861:1448-1454. [PMID: 27592730 DOI: 10.1016/j.bbagen.2016.08.022] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Revised: 08/27/2016] [Accepted: 08/30/2016] [Indexed: 01/05/2023]
Abstract
BACKGROUND The G-quadruplex motif has been widely used for the construction of analytical detection platforms due to its rich structural polymorphism and flexibility. Luminescent assays are often limited due to the interference from endogenous fluorophores in biological samples. METHODS To address this challenge, a novel long lifetime iridium(III) complex 1 was synthesized and used to construct a G-quadruplex-based assay for detecting prostate specific antigen (PSA) in aqueous solution. PSA is a common biomarker in serum and used as a model for demonstration in this work. RESULTS The PSA assay has achieved a detection limit of 40.8pg·mL-1, and shows high selectivity towards PSA over other proteins. Additionally, the assay could function in diluted human serum by using time-resolved luminescent spectroscopy, with good linearity from 1 to 10ng·mL-1 of PSA, which is adequate to detect the PSA levels for physiological (<4ng·mL-1) and clinical (4-10ng·mL-1) applications. CONCLUSIONS The assay was successfully constructed. As revealed from time-resolved method, the long lifetime property of iridium(III) complex 1 plays an important role in distinguishing phosphorescence signals from short-life auto-fluorescence of human serum. GENERAL SIGNIFICANCE Luminescent transition metal complexes offer several advantages over other widely used organic fluorophores, such as long phosphorescence lifetime, large Stokes shift and modular syntheses. In addition, the assay could work effectively in diluted human serum using time-resolved luminescent spectroscopy, it therefore could be potentially developed to monitor PSA in biological samples. This article is part of a Special Issue entitled "G-quadruplex" Guest Editor: Dr. Concetta Giancola and Dr. Daniela Montesarchio.
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Affiliation(s)
- Sheng Lin
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - Lihua Lu
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China; College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao, China
| | - Jin-Biao Liu
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - Chenfu Liu
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - Tian-Shu Kang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China
| | - Chao Yang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China
| | - Chung-Hang Leung
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China.
| | - Dik-Lung Ma
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China.
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14
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Seow N, Kirk Y, Yung LYL. Detection of G-Quadruplex Formation via Light Scattering of Defined Gold Nanoassemblies Modulated by Molecular Hairpins. Bioconjug Chem 2016; 27:1236-43. [PMID: 27135402 DOI: 10.1021/acs.bioconjchem.6b00084] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
G-quadruplexes are of great scientific interest, as these unique DNA structures play key regulatory roles in cell replication, such as safeguarding against uncontrolled cellular divisions. The quadruplexes have also been applied for detecting DNA and protein biomarkers via methods like fluorescence resonance energy transfer (FRET) and gold nanoparticle (AuNP) aggregation. As an alternative and complementary platform to the established molecular techniques for the study of quadruplexes, we have developed a strategy coupling poly-G (PG)-mediated quadruplex formation with AuNP assembly detectable via dynamic light scattering (DLS). The presence of quadruplex-forming sequences also uniquely modifies the AuNP nanoassembly readout on DLS. In addition, molecular hairpins co-attached onto the AuNP together with PG successfully modulated the quadruplex-induced nanoassembly. Through molecular beacon-based fluorescence restoration and light scattering signal changes, the open/closed conformations of the hairpins are leveraged to tune the size of the quadruplex-mediated nanoassembly.
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Affiliation(s)
- Nianjia Seow
- Department of Chemical and Biomolecular Engineering, Faculty of Engineering, National University of Singapore , Singapore 119260, Singapore
| | - Yingjie Kirk
- Department of Chemical and Biomolecular Engineering, Faculty of Engineering, National University of Singapore , Singapore 119260, Singapore
| | - Lin-Yue Lanry Yung
- Department of Chemical and Biomolecular Engineering, Faculty of Engineering, National University of Singapore , Singapore 119260, Singapore
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15
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Du YC, Jiang HX, Huo YF, Han GM, Kong DM. Optimization of strand displacement amplification-sensitized G-quadruplex DNAzyme-based sensing system and its application in activity detection of uracil-DNA glycosylase. Biosens Bioelectron 2016; 77:971-7. [DOI: 10.1016/j.bios.2015.10.080] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2015] [Revised: 10/27/2015] [Accepted: 10/28/2015] [Indexed: 01/24/2023]
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16
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Fan D, Zhu J, Zhai Q, Wang E, Dong S. Cascade DNA logic device programmed ratiometric DNA analysis and logic devices based on a fluorescent dual-signal probe of a G-quadruplex DNAzyme. Chem Commun (Camb) 2016; 52:3766-9. [DOI: 10.1039/c5cc10556k] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Two fluorescence sensitive substrates of G4 DNAzyme with inverse responses were simultaneously used to a cascade advanced DNA logic device based DNA analysis for the first time.
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Affiliation(s)
- Daoqing Fan
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- P. R. China
| | - Jinbo Zhu
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- P. R. China
| | - Qingfeng Zhai
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- P. R. China
| | - Erkang Wang
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- P. R. China
| | - Shaojun Dong
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- P. R. China
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17
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Wu Q, Shen H, Shen H, Sun Y, Song L. Study on sensing strategy and performance of a microfluidic chemiluminescence aptazyme sensor. Talanta 2015; 150:531-8. [PMID: 26838440 DOI: 10.1016/j.talanta.2015.12.023] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2015] [Revised: 12/04/2015] [Accepted: 12/10/2015] [Indexed: 11/30/2022]
Abstract
Aptamers are analogous to antibodies in their range of target recognition. G-quadruplex DNAzymes exhibit peroxidase-like activity toward certain specific reactions. Despite aptazyme sensors, based on aptamer and DNAzyme conjugates, have the potential to replace many conventional immune-biosensors; the mechanism concerning high background interference has scarcely been discussed. In this work, by taking a couple of aptazyme sensors with oligonucleotide sequences of adenosine aptamer and CatG4 DNAzyme, the sensing strategy dealing with the thermodynamic equilibrium of the functional oligonucleotide distribution had been studied. Oligonucleotide arrangement and cation condition were found important in modulating the shifting between Watson-Crick duplex and Hoogsteen G-quadruplex, which ultimately influenced sample and background signals. Notably, benefit from the microfluidic chemiluminescence detection, the developed aptazyme sensor achieved an absolute detection limit of 12 pmol adenosine with just 2 μL of pretreated sample solution consumption and satisfactory selectivity. The results have implication for better design of aptazyme sensor in the future.
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Affiliation(s)
- Qiwang Wu
- Institute of Microanalytical Systems, Department of Chemistry, Zhejiang University, Hangzhou 310058, China
| | - Haihui Shen
- School of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Hong Shen
- Institute of Microanalytical Systems, Department of Chemistry, Zhejiang University, Hangzhou 310058, China.
| | - Yue Sun
- School of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Lifang Song
- Institute of Microanalytical Systems, Department of Chemistry, Zhejiang University, Hangzhou 310058, China
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18
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Ding C, Zhang W, Wang W, Chen Y, Li X. Amplification strategies using electrochemiluminescence biosensors for the detection of DNA, bioactive molecules and cancer biomarkers. Trends Analyt Chem 2015. [DOI: 10.1016/j.trac.2014.10.015] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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19
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Tan H, Li Q, Zhou Z, Ma C, Song Y, Xu F, Wang L. A sensitive fluorescent assay for thiamine based on metal-organic frameworks with intrinsic peroxidase-like activity. Anal Chim Acta 2015; 856:90-5. [DOI: 10.1016/j.aca.2014.11.026] [Citation(s) in RCA: 84] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2014] [Revised: 10/14/2014] [Accepted: 11/17/2014] [Indexed: 11/28/2022]
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20
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Ren J, Wang T, Wang E, Wang J. Versatile G-quadruplex-mediated strategies in label-free biosensors and logic systems. Analyst 2015; 140:2556-72. [DOI: 10.1039/c4an02282c] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
This review addresses how G-quadruplex (G4)-mediated biosensors convert the events of target recognition into a measurable physical signal. The application of label-free G4-strategies in the construction of logic systems is also discussed.
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Affiliation(s)
- Jiangtao Ren
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- China
| | - Tianshu Wang
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- China
| | - Erkang Wang
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- China
| | - Jin Wang
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- China
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21
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Sensor Design Based on Structure Adjustment in Loops of G-quadruplex. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2014. [DOI: 10.1016/s1872-2040(14)60772-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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22
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Wang S, Fu B, Wang J, Long Y, Zhang X, Peng S, Guo P, Tian T, Zhou X. Novel Amplex Red Oxidases Based on Noncanonical DNA Structures: Property Studies and Applications in MicroRNA Detection. Anal Chem 2014; 86:2925-30. [DOI: 10.1021/ac402535a] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Shaoru Wang
- College
of Chemistry and Molecular Sciences, Key Laboratory of Biomedical
Polymers of Ministry of Education, State Key Laboratory of Virology, Wuhan University, Wuhan, Hubei 430072, P. R. of China
| | - Boshi Fu
- College
of Chemistry and Molecular Sciences, Key Laboratory of Biomedical
Polymers of Ministry of Education, State Key Laboratory of Virology, Wuhan University, Wuhan, Hubei 430072, P. R. of China
| | - Jiaqi Wang
- College
of Chemistry and Molecular Sciences, Key Laboratory of Biomedical
Polymers of Ministry of Education, State Key Laboratory of Virology, Wuhan University, Wuhan, Hubei 430072, P. R. of China
| | - Yuelin Long
- College
of Chemistry and Molecular Sciences, Key Laboratory of Biomedical
Polymers of Ministry of Education, State Key Laboratory of Virology, Wuhan University, Wuhan, Hubei 430072, P. R. of China
| | - Xiaoe Zhang
- College
of Chemistry and Molecular Sciences, Key Laboratory of Biomedical
Polymers of Ministry of Education, State Key Laboratory of Virology, Wuhan University, Wuhan, Hubei 430072, P. R. of China
| | - Shuang Peng
- College
of Chemistry and Molecular Sciences, Key Laboratory of Biomedical
Polymers of Ministry of Education, State Key Laboratory of Virology, Wuhan University, Wuhan, Hubei 430072, P. R. of China
| | - Pu Guo
- College
of Chemistry and Molecular Sciences, Key Laboratory of Biomedical
Polymers of Ministry of Education, State Key Laboratory of Virology, Wuhan University, Wuhan, Hubei 430072, P. R. of China
| | - Tian Tian
- College
of Chemistry and Molecular Sciences, Key Laboratory of Biomedical
Polymers of Ministry of Education, State Key Laboratory of Virology, Wuhan University, Wuhan, Hubei 430072, P. R. of China
| | - Xiang Zhou
- College
of Chemistry and Molecular Sciences, Key Laboratory of Biomedical
Polymers of Ministry of Education, State Key Laboratory of Virology, Wuhan University, Wuhan, Hubei 430072, P. R. of China
- State
Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing, China
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23
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Li S, Wang L, Hao Y, Zhang L, Zhou B, Deng L, Liu YN. An ultrasensitive colorimetric aptasensor for ATP based on peptide/Au nanocomposites and hemin–G-quadruplex DNAzyme. RSC Adv 2014. [DOI: 10.1039/c4ra02823f] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
A self-assembled peptide nanosphere was firstly applied to construct biosensors. A new signal amplification strategy was proposed for colorimetric aptasensor based on PNS/AuNPs composite. The colorimetric aptasensor displayed an ultra-high sensitivity for ATP detection with a LOD of 1.35 pM.
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Affiliation(s)
- Shipeng Li
- College of Chemistry and Chemical Engineering
- Central South University
- Changsha, PR China
| | - Liqiang Wang
- College of Chemistry and Chemical Engineering
- Central South University
- Changsha, PR China
| | - Yuanqiang Hao
- College of Chemistry and Chemical Engineering
- Central South University
- Changsha, PR China
| | - Lili Zhang
- College of Chemistry and Chemical Engineering
- Central South University
- Changsha, PR China
| | - Binbin Zhou
- College of Chemistry and Chemical Engineering
- Central South University
- Changsha, PR China
- Hunan Institute of Food Quality Supervision Inspection and Research
- Changsha, PR China
| | - Liu Deng
- College of Chemistry and Chemical Engineering
- Central South University
- Changsha, PR China
| | - You-Nian Liu
- College of Chemistry and Chemical Engineering
- Central South University
- Changsha, PR China
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24
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Xiao L, Chai Y, Yuan R, Wang H, Bai L. Highly enhanced electrochemiluminescence based on pseudo triple-enzyme cascade catalysis and in situ generation of co-reactant for thrombin detection. Analyst 2014; 139:1030-6. [DOI: 10.1039/c3an02134c] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this work, a novel pseudo triple-enzyme cascade catalysis amplification strategy was employed to fabricate a highly sensitive electrochemiluminescence (ECL) aptasensor for thrombin (TB) detection.
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Affiliation(s)
- Lijuan Xiao
- Education Ministry Key Laboratory on Luminescence and Real-Time Analysis
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715, People's Republic of China
| | - Yaqin Chai
- Education Ministry Key Laboratory on Luminescence and Real-Time Analysis
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715, People's Republic of China
| | - Ruo Yuan
- Education Ministry Key Laboratory on Luminescence and Real-Time Analysis
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715, People's Republic of China
| | - Haijun Wang
- Education Ministry Key Laboratory on Luminescence and Real-Time Analysis
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715, People's Republic of China
| | - Lijuan Bai
- Education Ministry Key Laboratory on Luminescence and Real-Time Analysis
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715, People's Republic of China
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25
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Kong DM. Factors influencing the performance of G-quadruplex DNAzyme-based sensors. Methods 2013; 64:199-204. [DOI: 10.1016/j.ymeth.2013.07.013] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2013] [Accepted: 07/08/2013] [Indexed: 02/03/2023] Open
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