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Zhou J, Liu Y, Du X, Gui Y, He J, Xie F, Cai J. Recent Advances in Design and Application of Nanomaterials-Based Colorimetric Biosensors for Agri-food Safety Analysis. ACS OMEGA 2023; 8:46346-46361. [PMID: 38107919 PMCID: PMC10720297 DOI: 10.1021/acsomega.3c06409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 10/12/2023] [Accepted: 11/03/2023] [Indexed: 12/19/2023]
Abstract
A colorimetric sensor detects an analyte by utilizing the optical properties of the sensor unit, such as absorption or reflection, to generate a structural color that serves as the output signal to detect an analyte. Detecting the refractive index of an analyte by recording the color change of the sensor structure on its surface has several advantages, including simple operation, low cost, suitability for onsite analysis, and real-time detection. Colorimetric sensors have drawn much attention owing to their rapidity, simplicity, high sensitivity and selectivity. This Review discusses the use of colorimetric sensors in the food industry, including their applications for detecting food contaminants. The Review also provides insight into the scope of future research in this area.
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Affiliation(s)
- Jiaojiao Zhou
- National
R&D Center for Se-Rich Agricultural Products Processing, Hubei
Engineering Research Center for Deep Processing of Green Se-Rich Agricultural
Products, School of Modern Industry for Selenium Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, China
| | - Yuantao Liu
- National
R&D Center for Se-Rich Agricultural Products Processing, Hubei
Engineering Research Center for Deep Processing of Green Se-Rich Agricultural
Products, School of Modern Industry for Selenium Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, China
| | - Xiaoping Du
- Ankang
R&D Center for Se-enriched Products, Key Laboratory of Se-enriched
Products Development and Quality Control, Ministry of Agriculture and Rural Affairs, Ankang Shaanxi 725000, China
| | - Yue Gui
- National
R&D Center for Se-Rich Agricultural Products Processing, Hubei
Engineering Research Center for Deep Processing of Green Se-Rich Agricultural
Products, School of Modern Industry for Selenium Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, China
| | - Jiangling He
- National
R&D Center for Se-Rich Agricultural Products Processing, Hubei
Engineering Research Center for Deep Processing of Green Se-Rich Agricultural
Products, School of Modern Industry for Selenium Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, China
| | - Fang Xie
- National
R&D Center for Se-Rich Agricultural Products Processing, Hubei
Engineering Research Center for Deep Processing of Green Se-Rich Agricultural
Products, School of Modern Industry for Selenium Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, China
| | - Jie Cai
- National
R&D Center for Se-Rich Agricultural Products Processing, Hubei
Engineering Research Center for Deep Processing of Green Se-Rich Agricultural
Products, School of Modern Industry for Selenium Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, China
- Key
Laboratory for Deep Processing of Major Grain and Oil, Ministry of
Education, Hubei Key Laboratory for Processing and Transformation
of Agricultural Products, Wuhan Polytechnic
University, Wuhan 430023, China
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2
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Li J, Du Z, Wang P, Chen K, Lin S, Xu W, Zhu L. A turn-on signal biosensor for cadmium(II) based on DNAzyme and stem-loop qPCR. Anal Chim Acta 2023; 1279:341827. [PMID: 37827645 DOI: 10.1016/j.aca.2023.341827] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 09/14/2023] [Accepted: 09/15/2023] [Indexed: 10/14/2023]
Abstract
Cadmium is a heavy metal that is exceedingly hazardous to humans and can enter the body through tainted food or drink, causing severe harm. It is critical to develop a technology for detecting cadmium in food and water that is sensitive and accurate. One such approach, which employs nucleases, is uncommon. A cadmium(II) turn-on biosensor was successfully created in this work using repetitive cleavage of certain specific nucleases for signal conversion and sophisticated stem-loop qPCR (quantitative polymerase chain reaction) for quick signal amplification and output. The method has strong selectivity and sensitivity for precise quantification, with a detection limit of 6 nmol L-1, i.e. 0.948 g L-1, which is far lower than the 5.0 g L-1 set by the United States Environmental Protection Agency, and it also operates well in retail rice samples.
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Affiliation(s)
- Jiale Li
- Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University, Beijing, 100083, China
| | - Zaihui Du
- Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University, Beijing, 100083, China
| | - Pengfei Wang
- Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University, Beijing, 100083, China
| | - Keren Chen
- Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University, Beijing, 100083, China
| | - Shenghao Lin
- Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University, Beijing, 100083, China
| | - Wentao Xu
- Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University, Beijing, 100083, China.
| | - Longjiao Zhu
- Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University, Beijing, 100083, China.
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3
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Huang L, Zhang Z. Recent Advances in the DNA-Mediated Multi-Mode Analytical Methods for Biological Samples. BIOSENSORS 2023; 13:693. [PMID: 37504092 PMCID: PMC10377368 DOI: 10.3390/bios13070693] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 06/14/2023] [Accepted: 06/27/2023] [Indexed: 07/29/2023]
Abstract
DNA-mediated nanotechnology has become a research hot spot in recent decades and is widely used in the field of biosensing analysis due to its distinctive properties of precise programmability, easy synthesis and high stability. Multi-mode analytical methods can provide sensitive, accurate and complementary analytical information by merging two or more detection techniques with higher analytical throughput and efficiency. Currently, the development of DNA-mediated multi-mode analytical methods by integrating DNA-mediated nanotechnology with multi-mode analytical methods has been proved to be an effective assay for greatly enhancing the selectivity, sensitivity and accuracy, as well as detection throughput, for complex biological analysis. In this paper, the recent progress in the preparation of typical DNA-mediated multi-mode probes is reviewed from the aspect of deoxyribozyme, aptamer, templated-DNA and G-quadruplex-mediated strategies. Then, the advances in DNA-mediated multi-mode analytical methods for biological samples are summarized in detail. Moreover, the corresponding current applications for biomarker analysis, bioimaging analysis and biological monitoring are introduced. Finally, a proper summary is given and future prospective trends are discussed, hopefully providing useful information to the readers in this research field.
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Affiliation(s)
- Lu Huang
- School of Chemistry, Sun Yat-sen University, Guangzhou 510006, China
| | - Zhuomin Zhang
- School of Chemistry, Sun Yat-sen University, Guangzhou 510006, China
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Wang Q, Wang Z, He Y, Xiong B, Li Y, Wang F. Chemical and structural modification of RNA-cleaving DNAzymes for efficient biosensing and biomedical applications. Trends Analyt Chem 2022. [DOI: 10.1016/j.trac.2022.116910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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5
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Fu Y, Du C, Zhang Q, Xiao K, Zhang X, Chen J. Colorimetric and Photocurrent-Polarity-Switching Photoelectrochemical Dual-Mode Sensing Platform for Highly Selective Detection of Mercury Ions Based on the Split G-Quadruplex-Hemin Complex. Anal Chem 2022; 94:15040-15047. [PMID: 36259408 DOI: 10.1021/acs.analchem.2c03084] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Mercury ion (Hg2+) is one of the most harmful heavy metal ions with the greatest impact on public health. Herein, based on the excellent catalytic activity toward 3,3',5,5'-tetramethylbenzidine (TMB) and the strong photocurrent-polarity-switching ability to SnS2 photoanode of the split G-quadruplex-hemin complex, the magnetic NiCo2O4@SiO2-NH2 sphere-assisted colorimetric and photoelectrochemical (PEC) dual-mode sensing platform was developed for the Hg2+ assay. First, the amino-labelled single-stranded DNA1 (S1) was immobilized on NiCo2O4@SiO2-NH2 and then partly hybridized with another single-stranded DNA2 (S2). When Hg2+ was present, the thymine-Hg2+-thymine base pairs between S1 and S2 were formed, causing the formation of the split G-quadruplex in the presence of K+. After addition of hemin, the split G-quadruplex-hemin complex was obtained and effectually catalyzed the H2O2-mediated oxidation of TMB. Thus, the color and absorbance intensity of the TMB solution were changed, resulting in the visual and colorimetric detection of Hg2+. The linear response range is 10 pM to 10 nM, and the detection limit is 3.8 pM. Meanwhile, the above G-quadruplex-hemin complex effectively switched the photocurrent polarity of SnS2-modified indium tin oxide electrode, leading to the sensitive and selective PEC assay of Hg2+ with a linear response range of 5 pM to 500 nM and a detection limit of 2.3 pM. Moreover, the developed dual-mode sensing platform provided mutual authentication of detection results in different modes, effectively improving the assay accuracy and confidence, and may have a good potential application in highly sensitive, selective, and accurate determination of Hg2+ in environmental fields.
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Affiliation(s)
- Yamin Fu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China.,Key Laboratory of Advanced Materials of Tropical Island Resources, Ministry of Education, School of Chemical Engineering and Technology, Hainan University, Haikou 570228, P. R. China
| | - Cuicui Du
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China
| | - Qingqing Zhang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China
| | - Ke Xiao
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China
| | - Xiaohua Zhang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China
| | - Jinhua Chen
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China
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6
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Li Y, Liu K, Wang B, Liu Z, Yang C, Wang J, Ma X, Li H, Sun C. Engineering DNAzyme strategies for fluorescent detection of lead ions based on RNA cleavage-propelled signal amplification. JOURNAL OF HAZARDOUS MATERIALS 2022; 440:129712. [PMID: 35952430 DOI: 10.1016/j.jhazmat.2022.129712] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Revised: 07/21/2022] [Accepted: 08/02/2022] [Indexed: 05/07/2023]
Abstract
Based on the high recognition ability and flexible programmability of GR5 DNAzyme, two fluorescent biosensors were engineered for amplified detection of Pb2+ via incorporating Ti3C2TX MXenes and embedding 2-aminopurine (2-AP), respectively. The quencher-required approach relied on the DNA affinity and fluorescence quenching ability of Ti3C2TX MXenes. Benefiting from the low background signal modulated by Ti3C2TX MXenes, the sensitive determination of Pb2+ was achieved in the linear range of 0.2-10 ng mL-1 with the limit of detection (LOD) of 0.05 ng mL-1. The quencher-free approach combined the fluorescent trait of 2-AP embedded in DNA structure, and the RNA cleavage-propelled digestion process of Exonuclease I (Exo I) for signal amplification, indicating the sensitive detection of Pb2+ with the LOD as low as 0.02 ng mL-1 in the linear range of 0.1-10 ng mL-1. Both DNAzyme assays exhibited simple procedures, favorable specificity, rapid analysis, and satisfactory application in standard reference materials (lead in drinking water) and spiked water samples. The two fluorescent biosensors established in this work would not only provide theoretic fundament for DNA adsorption of Ti3C2TX MXenes and the design of 2-AP-embedded DNAzyme assays, but also hold a great potential for on-site monitoring of lead pollution in water samples.
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Affiliation(s)
- Ying Li
- Department of Food Quality and Safety, Jilin University, Changchun 130062, China
| | - Kai Liu
- Department of Food Quality and Safety, Jilin University, Changchun 130062, China
| | - Boxu Wang
- Department of Food Quality and Safety, Jilin University, Changchun 130062, China
| | - Zheng Liu
- Department of Food Quality and Safety, Jilin University, Changchun 130062, China
| | - Chuanyu Yang
- Department of Food Quality and Safety, Jilin University, Changchun 130062, China
| | - Junyang Wang
- Department of Food Quality and Safety, Jilin University, Changchun 130062, China
| | - Xinyue Ma
- Department of Food Quality and Safety, Jilin University, Changchun 130062, China
| | - Hongxia Li
- Department of Food Quality and Safety, Jilin University, Changchun 130062, China.
| | - Chunyan Sun
- Department of Food Quality and Safety, Jilin University, Changchun 130062, China.
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7
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Lu C, Chen X, Ji Y, Liu C, Liu C. Development and validation of a label-free colorimetric aptasensor based on the HCR and hemin/G-quadruplex DNAzyme for the determination of patulin in fruits and fruit-based products from Xinjiang (China). ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2022; 14:3375-3381. [PMID: 35975688 DOI: 10.1039/d2ay00908k] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
In this study, a simple, novel and practical label-free colorimetric aptasensor was successfully prepared for the ultrasensitive detection of patulin, based on the hybridization chain reaction (HCR) and hemin/G-quadruplex DNAzyme-signal amplification strategy. In this aptasensor, a detection probe was designed consisting of the aptamer sequence for the patulin and an initiator sequence to trigger the HCR. Two hairpin structures (H1 and H2) that included the G-quadruplex sequences in inactive configuration were used as functional elements. The presence of patulin triggered the opening of the hairpin structure and the beginning of the HCR. After the addition of hemin, G-rich DNA self-assembled into the peroxidase-mimicking hemin/G-quadruplex DNAzymes, which catalyzed a colorimetric reaction. Under optimized conditions, patulin was measured within a linear range of 0.1-200 ng mL-1, and the detection limit was 0.060 ng mL-1. The recovery rates ranged from 91.4 to 105% for fruits and fruit-based products. Subsequently, a total of 311 samples comprising fruits, fruit-based products and dried fruits were collected from supermarkets, production bases and farmers' markets in Xinjiang, and analyzed for patulin using the proposed aptasensor. Patulin was detected in 16 samples (5.14%) at concentrations ranging from 1.23 to 16.4 μg kg-1. None of the samples exceeded the maximal level set by the EU commission (50 μg kg-1). The positivity in fresh fruits (7.69%) was significantly higher than that of fruit-based products (4.00%) and dried fruits (1.25%). In summary, the proposed aptasensor can quickly detect patulin in food samples, thus providing a warning for mycotoxin contamination.
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Affiliation(s)
- Chunxia Lu
- Life Science and Technology Institute, Yangtze Normal University, Chongqing 408100, China
| | - Xia Chen
- Supervision and Testing Center Food Quality, Ministry of Agriculture and Rural Affairs (Shihezi), Xinjiang Academy of Agriculture and Reclamation Science, Shihezi 832000, China.
| | - Yong Ji
- Supervision and Testing Center Food Quality, Ministry of Agriculture and Rural Affairs (Shihezi), Xinjiang Academy of Agriculture and Reclamation Science, Shihezi 832000, China.
| | - Chengjiang Liu
- Institute of Agricultural Products Processing, Xinjiang Academy of Agriculture and Reclamation Science, Shihezi 832000, China
| | - Changbin Liu
- Institute of Animal Husbandry and Veterinary Science, Xinjiang Academy of Agriculture and Reclamation Science, Shihezi 832000, China.
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8
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Wang X, Yang J, Xie Y, Lai G. Dual DNAzyme-catalytic assembly of G-quadruplexes for inducing the aggregation of gold nanoparticles and developing a novel antibiotic assay method. Mikrochim Acta 2022; 189:262. [PMID: 35727378 DOI: 10.1007/s00604-022-05362-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Accepted: 05/27/2022] [Indexed: 11/28/2022]
Abstract
By utilizing a target biorecognition reaction to induce the self-assembly of G-quadruplexes and the aggregation of gold nanoparticles (Au NPs), this work develops a novel colorimetric biosensing method for kanamycin (Kana) antibiotic detection. The compact G-quadruplex structure was assembled from its two half-split sequences which were designed in two hairpin substrates of the Mg2+-dependent DNAzyme (MNAzyme). Besides hybridizing with the aptamer strand, the MNAzyme sequence was also split into two half fragments to be designed in the two substrates. Upon the aptamer-recognition reaction toward Kana, the MNAzyme strand could be quantitatively released to cause the exposure of the split G-quadruplex-sequences on two hairpin substrate-modified Au NPs and simultaneous release of two half fragments of the MNAzyme-sequence. Thus, the K+-assisted self-folding of G-quadruplexes causes the cross-linking of the two Au NPs to realize the Au NP aggregation-based colorimetric signal output (measured at the largest absorption peak near 520 nm). Meanwhile, the self-assembled formation of the second MNAzyme drastically amplified the signal response. Under the optimal conditions, a wide linear range from 0.1 pg mL-1 to 10 ng mL-1 and an ultrahigh sensitivity with the detection limit of 76 fg mL-1 were obtained. The dose-recovery experiments in real samples showed satisfactory results with recoveries from 98.4 to 105.4% and relative errors compared with the ELISA method less than 4.1%. Due to the high selectivity, excellent repeatability and stability, and simple manipulation, this method indicates a promising potential for practical applications. A novel homogeneous biosensing method was developed for the convenient detection of the kanamycin antibiotic. The target biorecognition-induced and dual DNAzyme-catalytic assembly of G-quadruplexes enabled the amplified aggregation of gold nanoparticles for the simple, cheap, stable, and ultrasensitive colorimetric signal transduction of the method.
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Affiliation(s)
- Xiaojun Wang
- Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, College of Chemistry and Chemical Engineering, Hubei Normal University, Huangshi, 435002, China
| | - Jingru Yang
- Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, College of Chemistry and Chemical Engineering, Hubei Normal University, Huangshi, 435002, China
| | - Yiming Xie
- Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, College of Chemistry and Chemical Engineering, Hubei Normal University, Huangshi, 435002, China
| | - Guosong Lai
- Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, College of Chemistry and Chemical Engineering, Hubei Normal University, Huangshi, 435002, China.
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Li P, Li W, Xie Z, Zhan H, Deng L, Huang J. A label-free and signal-amplifiable assay method for colorimetric detection of carcinoembryonic antigen. Biotechnol Bioeng 2021; 119:504-512. [PMID: 34845724 DOI: 10.1002/bit.28003] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2021] [Revised: 11/21/2021] [Accepted: 11/24/2021] [Indexed: 01/20/2023]
Abstract
In this work, an innovative colorimetric assay method for the determination of carcinoembryonic antigen is developed with aptamer probes utilized as recognition element. DNA hybridization chain reaction is used as signal amplification technique, and peroxidase-mimicking hemin/G-quadruplex-assisted catalytic oxidation of 2,2'-azino-bis-3-ethylbenzothiazoline-6-sulfonic acid (ABTS) is deployed as signal reporting mechanism. The detection principle was firstly verified by using gel electrophoresis analysis and absorbance measurements. After condition optimization, a detection limit was theoretically determined as 24.8 ng/ml. Furthermore, the method exhibited good selectivity and satisfactory recovery rates (92.2%-108.6%) in serum samples. Moreover, the sensing scheme is easily extended for the detection of other analytes via similar target-aptamer recognition principle. To sum up, this is an enzyme- and label-free, cost-effective yet signal-amplifiable assay scheme for the determination of tumor markers with promising simplicity and selectivity, practical utility, and potential universality.
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Affiliation(s)
- Peng Li
- School of Biomedical Engineering, Southern Medical University, Guangzhou, China
| | - Wenqin Li
- School of Biomedical Engineering, Southern Medical University, Guangzhou, China
| | - Zhuohao Xie
- School of Biomedical Engineering, Southern Medical University, Guangzhou, China
| | - Haonan Zhan
- School of Biomedical Engineering, Southern Medical University, Guangzhou, China
| | - Liehua Deng
- Department of Critical Care Medicine, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Jiahao Huang
- School of Biomedical Engineering, Southern Medical University, Guangzhou, China.,Department of Critical Care Medicine, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
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Zhou R, Zeng Z, Sun R, Liu W, Zhu Q, Zhang X, Chen C. Traditional and new applications of the HCR in biosensing and biomedicine. Analyst 2021; 146:7087-7103. [PMID: 34775502 DOI: 10.1039/d1an01371h] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The hybridization chain reaction is a very popular isothermal nucleic acid amplification technology. A single-stranded DNA initiator triggers an alternate hybridization event between two hairpins forming a double helix polymer. Due to isothermal, enzyme-free and high amplification efficiency characteristics, the HCR is often used as a signal amplification technology for various biosensing and biomedicine fields. However, as an enzyme-free self-assembly reaction, it has some inevitable shortcomings of relatively slow kinetics, low cell internalization efficiency, weak biostability of DNA probes and uncontrollable reaction in these applications. More and more researchers use this reaction system to synthesize new materials. New materials can avoid these problems skillfully by virtue of their inherent biological characteristics, molecular recognition ability, sequence programmability and biocompatibility. Here, we summarized the traditional application of the HCR in biosensing and biomedicine in recent years, and also introduced its new application in the synthesis of new materials for biosensing and biomedicine. Finally, we summarized the development and challenges of the HCR in biosensing and biomedicine in recent years. We hope to give readers some enlightenment and help.
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Affiliation(s)
- Rong Zhou
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha 410013, Hunan, China.
| | - Zhuoer Zeng
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha 410013, Hunan, China.
| | - Ruowei Sun
- Hunan Zaochen Nanorobot Co., Ltd, Liuyang 410300, Hunan, China
| | - Wenfang Liu
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha 410013, Hunan, China.
| | - Qubo Zhu
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha 410013, Hunan, China.
| | - Xun Zhang
- Hunan Zaochen Nanorobot Co., Ltd, Liuyang 410300, Hunan, China
| | - Chuanpin Chen
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha 410013, Hunan, China.
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11
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A Novel Colorimetric Nano Aptasensor for Ultrasensitive Detection of Aflatoxin B1 Based on the Exonuclease III-Assisted Signal Amplification Approach. Foods 2021; 10:foods10112568. [PMID: 34828849 PMCID: PMC8625208 DOI: 10.3390/foods10112568] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 10/15/2021] [Accepted: 10/16/2021] [Indexed: 12/25/2022] Open
Abstract
The detection of aflatoxin B1 (AFB1) has recently garnered much attention on the issue of food safety. In this study, a novel and sensitive aptasensor towards AFB1 is proposed using an Exonuclease III (Exo III)-integrated signal amplification strategy. This reported sensing strategy is regulated by aptamer-functionalized nanobeads that can target AFB1; furthermore, complementary DNA (cDNA) strands can lock the immobilized aptamer strands, preventing the signal amplification function of Exo III in the absence of AFB1. The presence of AFB1 triggers the displacement of cDNA, which will then activate the Exo III-integrated signal amplification procedure, resulting in the generation of a guanine (G)-rich sequence to form a G-4/hemin DNAzyme, which can catalyze the substrate of ABTS to produce a green color. Using this method, a practical detection limit of 0.0032 ng/mL and a dynamic range of detection from 0.0032 to 50 ng/mL were obtained. Additionally, the practical application of the established sensing method for AFB1 in complex matrices was demonstrated through recovery experiments. The recovery rate and relative standard deviations (RSD) in three kinds of cereal samples ranged from 93.83% to 111.58%, and 0.82% to 7.20%, respectively, which were comparable with or better than previously reported methods.
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12
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Xu Q, Liu K, Jin J, Zhang X. Binding-induced output of catalyst DNA for efficient payload of DNAzyme on magnetic beads by catalyzed hairpin assembly. Microchem J 2021. [DOI: 10.1016/j.microc.2021.106490] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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13
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Abstract
This article provides a comprehensive review of biosensing with DNAzymes, providing an overview of different sensing applications while highlighting major progress and seminal contributions to the field of portable biosensor devices and point-of-care diagnostics. Specifically, the field of functional nucleic acids is introduced, with a specific focus on DNAzymes. The incorporation of DNAzymes into bioassays is then described, followed by a detailed overview of recent advances in the development of in vivo sensing platforms and portable sensors incorporating DNAzymes for molecular recognition. Finally, a critical perspective on the field, and a summary of where DNAzyme-based devices may make the biggest impact are provided.
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Affiliation(s)
- Erin M McConnell
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Ontario L8S 4K1, Canada.
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All Silica Micro-Fluidic Flow Injection Sensor System for Colorimetric Chemical Sensing. SENSORS 2021; 21:s21124082. [PMID: 34198500 PMCID: PMC8231821 DOI: 10.3390/s21124082] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 06/08/2021] [Accepted: 06/11/2021] [Indexed: 12/22/2022]
Abstract
This paper presents a miniature, all-silica, flow-injection sensor. The sensor consists of an optical fiber-coupled microcell for spectral absorption measurements and a microfluidic reagent injection system. The proposed sensor operates in back reflection mode and, with its compact dimensions, (no more than 200 µm in diameter) enables operation in small spaces and at very low flow rates of analyte and reagent, thus allowing for on-line or in-line colorimetric chemical sensing.
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15
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Xu J, Jiang R, He H, Ma C, Tang Z. Recent advances on G-quadruplex for biosensing, bioimaging and cancer therapy. Trends Analyt Chem 2021. [DOI: 10.1016/j.trac.2021.116257] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Wang G, Wu M, Chu LT, Chen TH. Portable microfluidic device with thermometer-like display for real-time visual quantitation of Cadmium(II) contamination in drinking water. Anal Chim Acta 2021; 1160:338444. [PMID: 33894969 DOI: 10.1016/j.aca.2021.338444] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 03/12/2021] [Accepted: 03/19/2021] [Indexed: 12/20/2022]
Abstract
Cadmium (Cd2+) is a toxic metal ion widely existing in water, soil and food. Conventional water quality control heavily relies on expensive, bulky and sophisticated instrument such as spectrometry, which is time-consuming and incompatible with on-site, real-time detection. Here, a portable microfluidic device with thermometer-like visual readouts is developed for real-time quantitation of cadmium (II) contamination in drinking water. We use Cd2+-dependent DNAzyme (Cd16), which is cleaved when Cd2+ is present, creating a single strand DNA which triggers catalytic hairpin assembly (CHA) with two hairpins H1 and H2 as the building blocks. Plenty of H1H2 complex, the product after the Cd2+-mediated CHA, are generated, which can connect magnetic microparticles (MMPs) and polystyrene microparticles (PMPs), forming "MMPs-H1H2-PMPs" sandwich structure. To provide visual readout to quantitate the particle connection, the particle solution is loaded into a portable microfluidic chip. A magnetic separator first removes MMPs and the connected PMPs, while free PMPs can continue flowing until accumulating into a bar at the particle dam. Shown as a thermometer-like display, the accumulating length is inversely proportional to the concentration of Cd2+, enabling quantitative detection of Cd2+ by the naked eye. The proposed device exhibits a limit of detection of 11.3 nM of Cd2+, selectivity >200-fold against other metal ions, high tolerance to the interferents present in drinking water and high recovery rate in tap water. With high analytical performance without any sample preparation step, this portable device is highly promising in real-time monitoring in urban drinking water at sites.
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Affiliation(s)
- Gaobo Wang
- Department of Biomedical Engineering, City University of Hong Kong, Hong Kong Special Administrative Region, 999077, China
| | - Minghui Wu
- Department of Biomedical Engineering, City University of Hong Kong, Hong Kong Special Administrative Region, 999077, China
| | - Lok Ting Chu
- Department of Biomedical Engineering, City University of Hong Kong, Hong Kong Special Administrative Region, 999077, China
| | - Ting-Hsuan Chen
- Department of Biomedical Engineering, City University of Hong Kong, Hong Kong Special Administrative Region, 999077, China.
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Moon WJ, Yang Y, Liu J. Zn 2+ -Dependent DNAzymes: From Solution Chemistry to Analytical, Materials and Therapeutic Applications. Chembiochem 2020; 22:779-789. [PMID: 33007113 DOI: 10.1002/cbic.202000586] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 10/01/2020] [Indexed: 12/20/2022]
Abstract
Since 1994, deoxyribozymes or DNAzymes have been in vitro selected to catalyze various types of reactions. Metal ions play a critical role in DNAzyme catalysis, and Zn2+ is a very important one among them. Zn2+ has good biocompatibility and can be used for intracellular applications. Chemically, Zn2+ is a Lewis acid and it can bind to both the phosphate backbone and the nucleobases of DNA. Zn2+ undergoes hydrolysis even at neutral pH, and the partially hydrolyzed polynuclear complexes can affect the interactions with DNA. These features have made Zn2+ a unique cofactor for DNAzyme reactions. This review summarizes Zn2+ -dependent DNAzymes with an emphasis on RNA-/DNA-cleaving reactions. A key feature is the sharp Zn2+ concentration and pH-dependent activity for many of the DNAzymes. The applications of these DNAzymes as biosensors for Zn2+ , as therapeutic agents to cleave intracellular RNA, and as chemical biology tools to manipulate DNA are discussed. Future studies can focus on the selection of new DNAzymes with improved performance and detailed biochemical characterizations to understand the role of Zn2+ , which can facilitate practical applications of Zn2+ -dependent DNAzymes.
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Affiliation(s)
- Woohyun J Moon
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario, N2L 3G1, Canada
| | - Yongjie Yang
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario, N2L 3G1, Canada.,Department of Food and Biological Science, College of Agricultural, Yanbian University, Yanbian Chaoxianzuzizhizhou, Yanji, 133002, P. R. China
| | - Juewen Liu
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario, N2L 3G1, Canada.,Centre for Eye and Vision Research, 17W Hong Kong Science Park, Hong Kong, China
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Heaton I, Platt M. DNAzyme Sensor for the Detection of Ca 2+ Using Resistive Pulse Sensing. SENSORS 2020; 20:s20205877. [PMID: 33080851 PMCID: PMC7589696 DOI: 10.3390/s20205877] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 10/07/2020] [Accepted: 10/10/2020] [Indexed: 12/26/2022]
Abstract
DNAzymes are DNA oligonucleotides that can undergo a specific chemical reaction in the presence of a cofactor. Ribonucleases are a specific form of DNAzymes where a tertiary structure undergoes cleavage at a single ribonuclease site. The cleavage is highly specificity to co-factors, which makes them excellent sensor recognition elements. Monitoring the change in structure upon cleavage has given rise to many sensing strategies; here we present a simple and rapid method of following the reaction using resistive pulse sensors, RPS. To demonstrate this methodology, we present a sensor for Ca2+ ions in solution. A nanoparticle was functionalised with a Ca2+ DNAzyme, and it was possible to follow the cleavage and rearrangement of the DNA as the particles translocate the RPS. The binding of Ca2+ caused a conformation change in the DNAzyme, which was monitored as a change in translocation speed. A 30 min assay produced a linear response for Ca2+ between 1–9 μm, and extending the incubation time to 60 min allowed for a concentration as low as 0.3 μm. We demonstrate that the signal is specific to Ca2+ in the presence of other metal ions, and we can quantify Ca2+ in tap and pond water samples.
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Fluorescent detection of Cu (II) ions based on DNAzymatic cascaded cyclic amplification. Mikrochim Acta 2020; 187:443. [PMID: 32661732 DOI: 10.1007/s00604-020-04430-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 07/07/2020] [Indexed: 10/23/2022]
Abstract
A fluorescent biosensor based on the cascaded cyclic amplification-lighted copper nanoparticles has been developed, optimized, and validated. In the double-modular cascaded cyclic amplification, a DNAzymatic cyclic amplification unit transforms metal ion signal to specific DNA sequences, and a linear/exponential integrated amplification unit converts as-prepared DNA codes to identical thymine (T)-rich DNA templates. T-rich scaffolds can induce the generation of red fluorescent copper nanoparticles, with fluorescence emission at 625 nm upon the excitation at 340 nm, as signal vehicles for quantitative detection of metal ions. Copper ions, selected as the model target, could be detected in a wide linear range from 10 to 104 nM depending on the increased fluorescent intensity, and the detection limit is 5.6 ± 0.52 nM (n = 3) within 40 min, which is 4 orders of magnitude lower than the limits set in drinking water. In the detection of Cu2+ in real tap and lake water, the results between inductively coupled plasma mass spectrometry (ICP-MS) and our proposed biosensor were consistent, illustrating the practicability of the fabricated method. In summary, the established fluorescent biosensor compensates the deficiency of immunoassays failing to analyze metal ions, broadens ranges of biomarkers responding to cleaved DNAzymes, provides an open platform sensing different metal ions, and meets the increasing need for the ultrasensitive detection in the field of food safety, environmental monitoring, and medical diagnosis.
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