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Chen D, Pan Y, Yu H, Chen X. Simple and sensitive detection of Pseudomonas aeruginosa in neonatal infection based on a both-end blocked peroxidase-mimicking DNAzyme. Biotechniques 2024; 76:323-332. [PMID: 39185786 DOI: 10.1080/07366205.2024.2348295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Accepted: 04/24/2024] [Indexed: 08/27/2024] Open
Abstract
Developing a simple and highly sensitive approach for Pseudomonas aeruginosa (P. aeruginosa) detection is crucial, as it is closely associated with various disorders, such as newborn infections. Nevertheless, few of techniques have the capability to accurately identify P. aeruginosa with a high level of sensitivity and significantly improved stability. The employment of the both-end blocked peroxidase-mimicking DNAzyme significantly diminished the interferences from background signals, so conferring the approach with a high degree of selectivity and reproducibility. The proposed method is demonstrated with exceptional discernment capacity in differentiating interfering microorganisms. The simplicity, elevated sensitivity and high discerning capability make the method a highly promising alternative instrument for pathogenic bacteria detection.
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Affiliation(s)
- Dongyun Chen
- Department of Nosocomial Infection Management, Maternal & Child Branch, Ruian People's Hospital, the Third Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325200, China
| | - Yicong Pan
- Department of Neonatology, Maternal & Child Branch Hospital of Ruian People's Hospital, the Third Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325200, China
| | - Huan Yu
- Department of Nosocomial Infection Management, Maternal & Child Branch, Ruian People's Hospital, the Third Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325200, China
| | - Xiaoxiang Chen
- Department of Clinical Laboratory, Maternal & Child Hospital, Ruian People's Hospital, the Third Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325200, China
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Han J, Wang J, Wang J, Fan D, Dong S. Recent advancements in coralyne (COR)-based biosensors: Basic principles, various strategies and future perspectives. Biosens Bioelectron 2022; 210:114343. [PMID: 35561578 DOI: 10.1016/j.bios.2022.114343] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 05/01/2022] [Accepted: 05/03/2022] [Indexed: 11/02/2022]
Abstract
As a kind of protoberberine alkaloid heterocyclic analogues, coralyne (COR) has been reported to exhibit superior antileukemic ability and used as anticancer drug agent. While, the severe hazards and side effects caused by unreasonable use have made its accurate detection more and more important. Although scientists have explored various methods to sense COR and other related targets, a systematical review which could not only elaborate recent developments and analyze current challenges of COR-based biosensors, but also present future perspective has not been reported and is urgently needed. In this review, we attempt to summarize latest advancements in COR-based biosensors in recent decade. Firstly, the operating principles, advantages and disadvantages of various strategies for COR detection (colorimetric, fluorescent, electrochemical and other ones) are comprehensively demonstrated and reviewed. Secondly, COR-assisted biosensors for detection of different non-COR targets (heparin, toxins, nucleic acids and other small molecules) are further discussed. Finally, we analyze current challenges and also suggest potential perspectives for this area.
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Affiliation(s)
- Jiawen Han
- Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology, Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, Shandong, 266003, China
| | - Juan Wang
- Research Center for Intelligent and Wearable Technology, College of Textiles and Clothing, Qingdao University, Qingdao, Shandong, 266071, China
| | - Jun Wang
- Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology, Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, Shandong, 266003, China
| | - Daoqing Fan
- Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology, Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, Shandong, 266003, China.
| | - Shaojun Dong
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China.
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Ma C, Chen M, He H, Chen L. Detection of coralyne and heparin by polymerase extension reaction using SYBR Green I. Mol Cell Probes 2019; 46:101423. [PMID: 31323319 DOI: 10.1016/j.mcp.2019.101423] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2019] [Revised: 07/14/2019] [Accepted: 07/16/2019] [Indexed: 11/24/2022]
Abstract
Polydeoxyadenosine (poly (dA)) has been extensively applied for detecting many drug molecules. Herein, we developed a sensitive method for detecting coralyne and heparin using a modified DNA probe with poly (dA) at one end. In the absence of coralyne, the DNA probe was digested by the Exonuclease I (Exo I), and therefore the SYBR Green I (SG I) emitted an extremely low fluorescent signal. While coralyne specifically binding to poly (dA) with strong propensity could remarkably restrain the disintegration of the DNA probe, through which as a template the second strand of DNA sequence was formed with the introduction of DNA polymerase. Therefore, the fluorescent signal of SG I was intensified to quantify coralyne. Based on this method, heparin can be determined due to its strong affinity towards coralyne. This method showed a linear range from 2 to 500 nM for coralyne with a low detection limit of 0.98 nM, and the linear range of heparin was from 1 to 100 nM when 1.25 nm was the detection limit. The proposed method was also implemented successfully in biological samples and showed a potential application for screening potential therapeutic molecules.
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Affiliation(s)
- Changbei Ma
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University (BTBU), Beijing, 102488, China; School of Life Sciences, Central South University, Changsha, 410013, China.
| | - Miangjian Chen
- School of Life Sciences, Central South University, Changsha, 410013, China
| | - Hailun He
- School of Life Sciences, Central South University, Changsha, 410013, China
| | - Leilei Chen
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University (BTBU), Beijing, 102488, China.
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Zhu X, Chen M, Ma C. Sensitive Detection of Coralyne and Heparin Using a Singly Labeled Fluorescent Oligonucleotide Probe. ChemistrySelect 2019. [DOI: 10.1002/slct.201900942] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Xingxing Zhu
- School of Life SciencesCentral South University Changsha 410013 China
| | - Miangjian Chen
- School of Life SciencesCentral South University Changsha 410013 China
| | - Changbei Ma
- School of Life SciencesCentral South University Changsha 410013 China
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Fu X, Zhang H, Zhang J, Wen ST, Deng XC. A Highly Sensitive and Label-Free Microbead-Based ‘Turn-On’ Colorimetric Sensor for the Detection of Mercury(II) in Urine Using a Peroxidase-Like Split G-Quadruplex–Hemin DNAzyme. Aust J Chem 2018. [DOI: 10.1071/ch18302] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
A highly sensitive and label-free microbead-based ‘turn-on’ assay was developed for the detection of Hg2+ in urine based on the Hg2+-mediated formation of intermolecular split G-quadruplex–hemin DNAzymes. In the presence of Hg2+, T–T mismatches between the two partial cDNA strands were stabilized by a T–Hg2+–T base pair, and can cause the G-rich sequences of the two oligonucleotides to associate to form a split G-quadruplex which is able to bind hemin to form the catalytically active G-quadruplex–hemin DNAzyme. This microbead-based ‘turn-on’ process allows the detection of Hg2+ in urine samples at concentrations as low as 0.5 pM. The relative standard deviation and recovery are 1.2–3.9 and 98.7–103.2%, respectively. The remarkable sensitivity for Hg2+ is mainly attributed to the enhanced mass transport ability that is inherent in homogeneous microbead-based assays. Compared with previous developments of intermolecular split G-quardruplex–hemin DNAzymes for the homogeneous detection of Hg2+ (the limit of detection was 19nM), a signal enhancement of ~1000 times is obtained when such an assay is performed on the surface of microbeads.
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KANG BH, LI N, LIU SG, LI NB, LUO HQ. A Label-free, Highly Sensitive and Selective Detection of Hemin Based on the Competition between Hemin and Protoporphyrin IX Binding to G-Quadruplexes. ANAL SCI 2016; 32:887-92. [DOI: 10.2116/analsci.32.887] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Bei Hua KANG
- Key Laboratory of Eco-Environments in Three Gorges Reservoir Region (Ministry of Education), School of Chemistry and Chemical Engineering, Southwest University
| | - Na LI
- Key Laboratory of Eco-Environments in Three Gorges Reservoir Region (Ministry of Education), School of Chemistry and Chemical Engineering, Southwest University
| | - Shi Gang LIU
- Key Laboratory of Eco-Environments in Three Gorges Reservoir Region (Ministry of Education), School of Chemistry and Chemical Engineering, Southwest University
| | - Nian Bing LI
- Key Laboratory of Eco-Environments in Three Gorges Reservoir Region (Ministry of Education), School of Chemistry and Chemical Engineering, Southwest University
| | - Hong Qun LUO
- Key Laboratory of Eco-Environments in Three Gorges Reservoir Region (Ministry of Education), School of Chemistry and Chemical Engineering, Southwest University
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