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He Z, Wang H, Liu W, Sun J, Huang J, Han J, Li B, Xu R, Zhang Y, Hua J, Guo Y, Lu F, Shi C. A novel self-enhanced electrochemiluminescent aptamer sensor based on ternary nanocomposite PEI/RuSi-MWCNTs for the detection of profenofos residues in vegetables. Heliyon 2024; 10:e25167. [PMID: 38333799 PMCID: PMC10850902 DOI: 10.1016/j.heliyon.2024.e25167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 01/20/2024] [Accepted: 01/22/2024] [Indexed: 02/10/2024] Open
Abstract
In this work, a novel ternary nanocomposite of PEI/RuSi-MWCNTs was designed and synthesized for the first time, which an ultrasensitive and self-enhanced electrochemiluminescent (ECL) aptasensor was developed for the detection of profenofos residues in vegetables. The self-enhanced complex PEI-Ru (II) enhanced the emission and stability of ECL, and the multi-walled carbon nanotubes (MWCNTs) acted as an excellent carrier and signal amplification. The PEI/RuSi-MWCNTs were characterized by scanning electron microscope (SEM), transmission electron microscope (TEM) and energy dispersive spectrometer (EDS). The incorporation of gold nanoparticles (AuNPs) improved the performance of the sensor and provided a platform for the immobilization of the aptamer. The results of the experiment showed that the presence of profenofos significantly suppressed the electrochemiluminescence intensity of the sensor. The detection sensitivity of the aptamer sensor was in the range of 1 × 10-2 to 1 × 103 ng/mL. Under optimal conditions, the limit of detection (LOD) of the sensor for profenofos was 1.482 × 10-3 ng/mL. The sensor had excellent stability, reproducibility and specificity. The recoveries of the sensor ranged from 92.29 % to 106.47 % in real sample tests.
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Affiliation(s)
- Zhenying He
- School of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, Shandong, 255049, China
- Information Technology Research Center, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097, China
- Zibo City Key Laboratory of Agricultural Product Safety Traceability, No. 266 Xincun Xilu, Zibo, Shandong, 255049, China
- Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 266 Xincun Xilu, Zibo, Shandong, 255049, China
| | - Haifang Wang
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, 100700, China
| | - Wenzheng Liu
- School of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, Shandong, 255049, China
- Zibo City Key Laboratory of Agricultural Product Safety Traceability, No. 266 Xincun Xilu, Zibo, Shandong, 255049, China
- Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 266 Xincun Xilu, Zibo, Shandong, 255049, China
| | - Jiashuai Sun
- School of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, Shandong, 255049, China
- Zibo City Key Laboratory of Agricultural Product Safety Traceability, No. 266 Xincun Xilu, Zibo, Shandong, 255049, China
- Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 266 Xincun Xilu, Zibo, Shandong, 255049, China
| | - Jingcheng Huang
- School of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, Shandong, 255049, China
- Zibo City Key Laboratory of Agricultural Product Safety Traceability, No. 266 Xincun Xilu, Zibo, Shandong, 255049, China
- Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 266 Xincun Xilu, Zibo, Shandong, 255049, China
| | - Jie Han
- School of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, Shandong, 255049, China
- Zibo City Key Laboratory of Agricultural Product Safety Traceability, No. 266 Xincun Xilu, Zibo, Shandong, 255049, China
- Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 266 Xincun Xilu, Zibo, Shandong, 255049, China
| | - Baoxin Li
- School of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, Shandong, 255049, China
- Zibo City Key Laboratory of Agricultural Product Safety Traceability, No. 266 Xincun Xilu, Zibo, Shandong, 255049, China
- Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 266 Xincun Xilu, Zibo, Shandong, 255049, China
| | - Rui Xu
- School of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, Shandong, 255049, China
- Zibo City Key Laboratory of Agricultural Product Safety Traceability, No. 266 Xincun Xilu, Zibo, Shandong, 255049, China
- Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 266 Xincun Xilu, Zibo, Shandong, 255049, China
| | - Yuhao Zhang
- School of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, Shandong, 255049, China
- Zibo City Key Laboratory of Agricultural Product Safety Traceability, No. 266 Xincun Xilu, Zibo, Shandong, 255049, China
- Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 266 Xincun Xilu, Zibo, Shandong, 255049, China
| | - Jin Hua
- School of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, Shandong, 255049, China
- Zibo City Key Laboratory of Agricultural Product Safety Traceability, No. 266 Xincun Xilu, Zibo, Shandong, 255049, China
- Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 266 Xincun Xilu, Zibo, Shandong, 255049, China
| | - Yemin Guo
- School of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, Shandong, 255049, China
- Zibo City Key Laboratory of Agricultural Product Safety Traceability, No. 266 Xincun Xilu, Zibo, Shandong, 255049, China
- Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 266 Xincun Xilu, Zibo, Shandong, 255049, China
| | - Fangyuan Lu
- School of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, Shandong, 255049, China
- Zibo City Key Laboratory of Agricultural Product Safety Traceability, No. 266 Xincun Xilu, Zibo, Shandong, 255049, China
- Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 266 Xincun Xilu, Zibo, Shandong, 255049, China
| | - Ce Shi
- Information Technology Research Center, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097, China
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Zhou J, Gui Y, Lv X, He J, Xie F, Li J, Cai J. Nanomaterial-Based Fluorescent Biosensor for Food Safety Analysis. BIOSENSORS 2022; 12:1072. [PMID: 36551039 PMCID: PMC9775463 DOI: 10.3390/bios12121072] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 11/16/2022] [Accepted: 11/21/2022] [Indexed: 06/17/2023]
Abstract
Food safety issues have become a major threat to public health and have garnered considerable attention. Rapid and effective detection methods are crucial for ensuring food safety. Recently, nanostructured fluorescent materials have shown considerable potential for monitoring the quality and safety of food because of their fascinating optical characteristics at the nanoscale. In this review, we first introduce biomaterials and nanomaterials for food safety analysis. Subsequently, we perform a comprehensive analysis of food safety using fluorescent biosensors based on nanomaterials, including mycotoxins, heavy metals, antibiotics, pesticide residues, foodborne pathogens, and illegal additives. Finally, we provide new insights and discuss future approaches for the development of food safety detection, with the aim of improving fluorescence detection methods for the practical application of nanomaterials to ensure food safety and protect human health.
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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
| | - 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
| | - Xuqin Lv
- 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
| | - 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
| | - Jinjie Li
- Institute of System and Engineering, Beijing 100010, 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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Huang Y, Zhang S, Chen Y, Dai H, Lin Y. Modular and Noncontact Wireless Detection Platform for Ovarian Cancer Markers: Electrochemiluminescent and Photoacoustic Dual-Signal Output Based on Multiresponse Carbon Nano-Onions. Anal Chem 2022; 94:13269-13277. [DOI: 10.1021/acs.analchem.2c03337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yitian Huang
- College of Chemistry and Material, Fujian Normal University, Fuzhou, Fujian 350108, China
| | - Shupei Zhang
- College of Chemical and Material Engineering, Quzhou University, Quzhou, Zhejiang 32400, China
| | - Yanjie Chen
- College of Chemistry and Material, Fujian Normal University, Fuzhou, Fujian 350108, China
| | - Hong Dai
- College of Chemistry and Material, Fujian Normal University, Fuzhou, Fujian 350108, China
- College of Chemical and Material Engineering, Quzhou University, Quzhou, Zhejiang 32400, China
| | - Yanyu Lin
- College of Chemistry and Material, Fujian Normal University, Fuzhou, Fujian 350108, China
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Victorious A, Zhang Z, Chang D, Maclachlan R, Pandey R, Xia J, Gu J, Hoare T, Soleymani L, Li Y. A DNA Barcode‐Based Aptasensor Enables Rapid Testing of Porcine Epidemic Diarrhea Viruses in Swine Saliva Using Electrochemical Readout. Angew Chem Int Ed Engl 2022; 61:e202204252. [DOI: 10.1002/anie.202204252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Indexed: 11/08/2022]
Affiliation(s)
- Amanda Victorious
- School of Biomedical Engineering McMaster University 1280 Main Street West, Hamilton Ontario L8S 4K1 Canada
| | - Zijie Zhang
- Department of Biochemistry and Biomedical Sciences McMaster University Canada
| | - Dingran Chang
- Department of Biochemistry and Biomedical Sciences McMaster University Canada
| | | | - Richa Pandey
- School of Biomedical Engineering McMaster University 1280 Main Street West, Hamilton Ontario L8S 4K1 Canada
| | - Jianrun Xia
- Department of Biochemistry and Biomedical Sciences McMaster University Canada
| | - Jimmy Gu
- Department of Biochemistry and Biomedical Sciences McMaster University Canada
| | - Todd Hoare
- School of Biomedical Engineering McMaster University 1280 Main Street West, Hamilton Ontario L8S 4K1 Canada
- Department of Chemical Engineering McMaster University Canada
| | - Leyla Soleymani
- School of Biomedical Engineering McMaster University 1280 Main Street West, Hamilton Ontario L8S 4K1 Canada
- Department of Engineering Physics McMaster University Canada
- Michael G. DeGroote Institute for Infectious Disease Research McMaster University Canada
| | - Yingfu Li
- School of Biomedical Engineering McMaster University 1280 Main Street West, Hamilton Ontario L8S 4K1 Canada
- Department of Biochemistry and Biomedical Sciences McMaster University Canada
- Michael G. DeGroote Institute for Infectious Disease Research McMaster University Canada
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Wang Q, Zhang Z, Zhang L, Liu Y, Xie L, Ge S, Yu J. Photoswitchable CRISPR/Cas12a-Amplified and Co 3O 4@Au Nanoemitter Based Triple-Amplified Diagnostic Electrochemiluminescence Biosensor for Detection of miRNA-141. ACS APPLIED MATERIALS & INTERFACES 2022; 14:32960-32969. [PMID: 35839124 DOI: 10.1021/acsami.2c08823] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
In this work, a CRISPR/Cas12a initiated switchable ternary electrochemiluminescence (ECL) biosensor combined with a Co3O4@Au nanoemitter is presented for the in vitro monitoring of miRNA-141. Benefiting from the advantages of high-throughput cargo payload capability and superconductivity, three-dimensional reduced graphene oxide (3D-rGO) was designated as an introductory conducting stratum of a paper working electrode (PWE). With the collaborative participation of Co3O4@Au NPs, the transmutation of TPrA in the Ru(bpy)32+/TPrA system can be riotously expedited into exorbitant free radical ions TPrA•, which provoked the exaggeration of the ECL signal. Moreover, the programmable enzyme-free hybrid chain reaction (HCR) amplifier on the PWE surface accurately anchored the assembly of nucleic acid tandem and accomplished the secondary recursion of the signal. Impressively, the multifunctional CRISPR/Cas12a with nonspecific cis/trans-splitting decomposition manipulated the photoswitch of the "on-off" signal state that avoided the false-positive diagnosis. The presented multistrategy cooperative biosensor demonstrated extraordinary sensitivity and specificity, with a low detection limit of 3.3 fM (S/N = 3) in the concentration scope from 10 fM to 100 nM, which fully corresponded to the expectation. Overall, this innovative methodology paved a generous avenue for evaluating multifarious biotransformations and provided a tremendous impetus to the development of real-time diagnosis and clinical detection of other biomarkers.
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Affiliation(s)
- Qian Wang
- Institute for Advanced Interdisciplinary Research, University of Jinan, Jinan 250022, P. R. China
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China
| | - Zuhao Zhang
- Institute for Advanced Interdisciplinary Research, University of Jinan, Jinan 250022, P. R. China
| | - Lu Zhang
- Institute for Advanced Interdisciplinary Research, University of Jinan, Jinan 250022, P. R. China
| | - Yunqing Liu
- Institute for Advanced Interdisciplinary Research, University of Jinan, Jinan 250022, P. R. China
| | - Li Xie
- Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan 250117, P. R. China
| | - Shenguang Ge
- Institute for Advanced Interdisciplinary Research, University of Jinan, Jinan 250022, P. R. China
| | - Jinghua Yu
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China
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6
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Li J, Wang C, Wang W, Zhao L, Han H. Dual-Mode Immunosensor for Electrochemiluminescence Resonance Energy Transfer and Electrochemical Detection of Rabies Virus Glycoprotein Based on Ru(bpy) 32+-Loaded Dendritic Mesoporous Silica Nanoparticles. Anal Chem 2022; 94:7655-7664. [PMID: 35579617 DOI: 10.1021/acs.analchem.2c00954] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Rabies is a serious zoonotic disease in almost all warm-blooded animals and causes fatal encephalitis. The detection of rabies virus (RABV) is critical and remains a significant challenge. Herein, an electrochemiluminescence resonance energy transfer (ECL-RET) and electrochemical (EC) dual-mode immunosensor was developed for highly sensitive detection of RABV glycoprotein. Dendritic mesoporous silica nanoparticles (DMSNs) were employed to load Ru(bpy)32+ and to obtain ECL probes (Ru@DMSNs). Ru@DMSNs were decorated on the electrode surface, followed by the modification of the RABV antibody (Ab1). RABV was specifically recognized and captured by Ab1, causing the decline of the ECL signal due to the obstruction of electron transfer. Additionally, manganese oxide nanoparticles (MnOx) modified with Ab2 can further quench the ECL signal of Ru@DMSNs via the RET between Ru@DMSNs and MnOx. Meanwhile, MnOx can catalyze the oxidation of o-phenylenediamine (o-PD), generating a significant differential pulse voltammetry (DPV) signal as a second signal to monitor RABV glycoprotein concentration. Consequently, an immunosensor was developed to achieve dual-signal detection of RABV and improve reliability. Under the optimal conditions, detection ranges of 0.10 pg·mL-1 to 10 ng·mL-1 for ECL (with an 88 fg·mL-1 detection limit) and 1 pg·mL-1 to 2 ng·mL-1 for EC (with a 0.1 pg·mL-1 detection limit) were obtained for RABV detection. The reliability of this immunoassay was validated by eight brain tissue samples. The results were found to be compatible with the results of the real-time reverse transcription-polymerase chain reaction (RT-PCR) assay, indicating the potential applicability of this method for RABV diagnosis.
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Affiliation(s)
- Jiawen Li
- State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Caiqian Wang
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Wenjing Wang
- State Key Laboratory of Agricultural Microbiology, College of Science, Huazhong Agricultural University, Wuhan 430070, China
| | - Ling Zhao
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Heyou Han
- State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China.,State Key Laboratory of Agricultural Microbiology, College of Science, Huazhong Agricultural University, Wuhan 430070, China
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7
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Victorious A, Zhang Z, Chang D, Malachlan R, Pandey R, Xia J, Gu J, Hoare T, Soleymani L, Li Y. A DNA Barcode‐Based Aptasensor Enables Rapid Testing of Porcine Epidemic Diarrhea Viruses in Swine Saliva Using Electrochemical Readout. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202204252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
| | - Zijie Zhang
- McMaster University Biochemistry and Biomedical Sciences CANADA
| | - Dingran Chang
- McMaster University Biochemistry and Biomedical Sciences CANADA
| | | | | | - Jianrun Xia
- McMaster University Biochemistry and Biomedical Sciences CANADA
| | - Jimmy Gu
- McMurry University Biochemistry and Biomedical Sciences CANADA
| | - Todd Hoare
- McMurry University Chemical Engineering CANADA
| | - Leyla Soleymani
- McMastser University Engineering Physics 1280 Main Street W. L8S 4M1 Hamilton CANADA
| | - Yingfu Li
- McMaster University Biochemistry and Biomedical Sciences CANADA
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Shao Y, Zhou H, Wu Q, Xiong Y, Wang J, Ding Y. Recent advances in enzyme-enhanced immunosensors. Biotechnol Adv 2021; 53:107867. [PMID: 34774928 DOI: 10.1016/j.biotechadv.2021.107867] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2021] [Revised: 10/31/2021] [Accepted: 11/05/2021] [Indexed: 12/19/2022]
Abstract
Among the products for rapid detection in different fields, enzyme-based immunosensors have received considerable attention. Recently, great efforts have been devoted to enhancing the output signals of enzymes through different strategies that can significantly improve the sensitivity of enzyme-based immunosensors for the need of practical applications. In this manuscript, the significance of enzyme-based signal transduction patterns in immunoassay and the central role of enzymes in achieving precise control of reaction systems are systematically described. In view of the rapid development of this field, we classify these strategies based on the combination of immune recognition and enzyme amplification into three categories, namely enzyme-based enhancement strategies, combination of the catalytic amplification of enzymes with other signal amplification methods, and substrate-based enhancement strategies. The current focus and future direction of enzyme-based immunoassays are also discussed. This article is not exhaustive, but focuses on the latest advances in different signal generation methods based on enzyme-initiated catalytic reactions and their applications in the detection field, which could provide an accessible introduction of enzyme-based immunosensors for the community with a view to further improving its application efficiency.
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Affiliation(s)
- Yanna Shao
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou 510070, China; Department of Food Science and Technology, Institute of Food Safety and Nutrition, College of Science & Engineering, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
| | - Huan Zhou
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou 510070, China; Department of Food Science and Technology, Institute of Food Safety and Nutrition, College of Science & Engineering, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
| | - Qingping Wu
- Department of Food Science and Technology, Institute of Food Safety and Nutrition, College of Science & Engineering, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
| | - Yonghua Xiong
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Juan Wang
- College of Food Science, South China Agricultural University, Guangzhou 510432, China
| | - Yu Ding
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou 510070, China; Department of Food Science and Technology, Institute of Food Safety and Nutrition, College of Science & Engineering, College of Life Science and Technology, Jinan University, Guangzhou 510632, China.
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Ge S, Ran M, Mao Y, Sun Y, Zhou X, Li L, Cao X. A novel DNA biosensor for the ultrasensitive detection of DNA methyltransferase activity based on a high-density "hot spot" SERS substrate and rolling circle amplification strategy. Analyst 2021; 146:5326-5336. [PMID: 34319337 DOI: 10.1039/d1an01034d] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Herein, we proposed a novel biosensor based on a high-density "hot spot" Au@SiO2 array substrate and rolling circle amplification (RCA) strategy for the ultrasensitive detection of CpG methyltransferase (M.SssI) activity. In the presence of M.SssI, the RCA process can be triggered, causing the augmentation of the single-stranded DNA (ssDNA) at the tail of the double-stranded DNA (dsDNA), and the ssDNA can be hybridized with numerous DNA probes labeled with Raman reporters in the next steps. Afterwards, the resultant ssDNA can be modified to the Au@SiO2 array substrate with the SERS enhancement factor of 7.49 × 106. The substrate was synthesized by using a monolayer SiO2 array to pick up the Au nanoparticle (AuNP) array and finite-difference time-domain (FDTD) simulation showed its excellent SERS effect. Particularly, the developed biosensor displayed a significant sensitivity with a broad detection range covering from 0.005 to 50 U mL-1, and the limits of detection (LODs) in PBS buffer and human serum were 2.37 × 10-4 U mL-1 and 2.51 × 10-4 U mL-1, respectively. Finally, in order to verify the feasibility of its clinical application, the serum samples of healthy subjects and breast cancer, prostate cancer, gastric cancer and cervical cancer patients were analyzed, and the reliability of the results was also confirmed by western blot (WB) experiments. Taking advantage of these merits, the proposed biosensor can be a very promising alternative tool for the detection of M.SssI activity, which is of vital importance in the early detection and prevention of tumors.
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Affiliation(s)
- Shengjie Ge
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, 225001, P. R. China.
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Cao Y, Ma C, Zhu JJ. DNA Technology-assisted Signal Amplification Strategies in Electrochemiluminescence Bioanalysis. JOURNAL OF ANALYSIS AND TESTING 2021. [DOI: 10.1007/s41664-021-00175-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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A review of aptamer-based SERS biosensors: Design strategies and applications. Talanta 2021; 227:122188. [PMID: 33714469 DOI: 10.1016/j.talanta.2021.122188] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2020] [Revised: 01/27/2021] [Accepted: 01/30/2021] [Indexed: 02/07/2023]
Abstract
Surface-enhanced Raman spectroscopy, due to its high sensitivity, unique vibrational fingerprint identification of molecules and easy operation, has been extensively applied in different fields. Aptamers, being the unique single stranded DNA/RNA sequences that can specifically recognize and seize the target analytes, combined with Surface-enhanced Raman spectroscopy (SERS), can offer potent multiplex detection capacity with high specificity and sensitivity. In this review, we summarize and classify the general working strategies of different types of aptamer-based SERS biosensors with diversified protocols which either take aptamer conformational change as intrinsic reporter, or make use of various extrinsic Raman reporters in different sensor designs via on/off approach, sandwich-type and magnetic nanoparticles (NPs)-assisted approach, and catalytic reaction assisted approach with amplification of alternative Raman signals. The advantages, applications and perspectives of these aptamer-based SERS biosensors are also discussed.
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Li R, An Y, Jin T, Zhang F, He P. Detection of MUC1 protein on tumor cells and their derived exosomes for breast cancer surveillance with an electrochemiluminescence aptasensor. J Electroanal Chem (Lausanne) 2021. [DOI: 10.1016/j.jelechem.2021.115011] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Ma J, Wang W, Li Y, Lu Z, Tan X, Han H. Novel Porphyrin Zr Metal–Organic Framework (PCN-224)-Based Ultrastable Electrochemiluminescence System for PEDV Sensing. Anal Chem 2021; 93:2090-2096. [DOI: 10.1021/acs.analchem.0c03836] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Jing Ma
- State Key Laboratory of Agricultural Microbiology, College of Food Science and Technology, College of Science, Huazhong Agricultural University, Wuhan 430070, People’s Republic of China
- College of Life Science, Yangtze University, Jingzhou, Hubei 434023, People’s Republic of China
| | - Wenjing Wang
- State Key Laboratory of Agricultural Microbiology, College of Food Science and Technology, College of Science, Huazhong Agricultural University, Wuhan 430070, People’s Republic of China
| | - Yun Li
- State Key Laboratory of Agricultural Microbiology, College of Food Science and Technology, College of Science, Huazhong Agricultural University, Wuhan 430070, People’s Republic of China
| | - Zhicheng Lu
- State Key Laboratory of Agricultural Microbiology, College of Food Science and Technology, College of Science, Huazhong Agricultural University, Wuhan 430070, People’s Republic of China
| | - Xuecai Tan
- College School of Chemistry and Chemical Engineering, Guangxi University for Nationalities, Nanning 530008, People’s Republic of China
| | - Heyou Han
- State Key Laboratory of Agricultural Microbiology, College of Food Science and Technology, College of Science, Huazhong Agricultural University, Wuhan 430070, People’s Republic of China
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14
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Liu Q, Bai W, Guo Z, Zheng X. Enhanced electrochemiluminescence of Ru(bpy) 3 2+ -doped silica nanoparticles by chitosan/Nafion shell@carbon nanotube core-modified electrode. LUMINESCENCE 2020; 36:642-650. [PMID: 33171543 DOI: 10.1002/bio.3979] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 10/26/2020] [Accepted: 11/04/2020] [Indexed: 11/11/2022]
Abstract
Although Ru(bpy)3 2+ -doped silica nanoparticles have been widely explored as the labelling tags for electrochemiluminescence (ECL) sensing different targets, the poor electrical conductive properties of the silica nano-matrix greatly limit their ECL sensitivity. Therefore, a novel scheme to overcome this drawback on Ru(bpy)3 2+ -doped silica nanoparticles ECL is desirable. Here, a new scheme for this purpose was developed based on electrochemically depositing a nanoscale chitosan hydrogel layer on the carbon nanotube (CNT) surface to form chitosan hydrogel shell@CNT core nanocomposites. In this case, the nanoscale chitosan hydrogel layer only formed on the CNT surface due to the superior electrocatalytic effect of CNT on H+ reduction compared with the basic glass carbon electrode. Due to both the superhydrophilic properties and polyelectrolyte features of nanoscale chitosan hydrogel on the CNT surface, chemical affinity as well as the electric conductivity between Ru(bpy)3 2+ -doped silica nanoparticles and CNT were obviously enhanced, and then the ECL effectivity of Ru(bpy)3 2+ inside silica nanoparticles was improved. Furthermore, based on the discriminative interaction of these Ru(bpy)3 2+ -doped silica nanoparticles towards both the ssDNA probes and the ssDNA probe/miRNA complex, as well as the specific adsorption effect of these nanoparticles on the nanoscale chitosan shell@Nafion/CNT core-modified glass carbon electrode, a highly sensitive ECL method for miRNA determination was developed and successfully used to detect miRNA in human serum samples.
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Affiliation(s)
- Qiaoling Liu
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an, China
| | - Wenjia Bai
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an, China
| | - Zhihui Guo
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an, China
| | - Xingwang Zheng
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an, China
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15
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Target-triggered "signal-off" electrochemical aptasensor assisted by Au nanoparticle-modified sensing platform for high-sensitivity determination of circulating tumor cells. Anal Bioanal Chem 2020; 412:8107-8115. [PMID: 32929571 DOI: 10.1007/s00216-020-02940-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 08/31/2020] [Accepted: 09/03/2020] [Indexed: 12/17/2022]
Abstract
In this study, we fabricated a high-sensitivity "signal-off" electrochemical aptasensing platform for quantifying circulating tumor cells (CTCs) based on target-triggered signal readout of methylene blue (MB). Au nanoparticles (AuNPs) were introduced to enlarge the specific surface area of the gold electrode (GE), which would immobilize homogeneous and more MB-aptamers. MB-modified and stem-loop-like aptamers were assigned as a recognition element with K562 cells. Thiolated complementary strands hybridized with MB-aptamers to form double-stranded DNA (dsDNA) conformation which were further self-assembled on the surface of AuNP-modified GE, leading to a marked current peak of MB signal. In the presence of K562 cells, the MB-aptamers preferred to recognize and bind with the cells, causing the disassembly of MB-aptamers from the GE surface. Therefore, the reduced value of MB signal was related to the number of K562 cells. With the proposed aptasensor, a dynamic linear range from 1 × 102 to 1 × 106 cells mL-1 was obtained with a detection limit of 23 cells mL-1. Moreover, the aptasensor showed good selectivity, stability, and reproducibility as well as potential use in the clinical setting. Meanwhile, characterization techniques such as field-emission scanning electron microscopy, energy-dispersive X-ray spectroscopy, atomic force microscopy, cyclic voltammetry, and electrochemical impedance spectroscopy were performed to analyze the evolution of the morphology and each fabricated step of the constructed aptasensor. Our proposed aptasensor could be designed as a universal platform for CTC determination by replacing tumor cell-specific aptamers, which is a promising strategy for basic research and clinical applications. Graphical abstract.
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16
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Uskoković V. Why have nanotechnologies been underutilized in the global uprising against the coronavirus pandemic? Nanomedicine (Lond) 2020; 15:1719-1734. [PMID: 32462968 PMCID: PMC7265684 DOI: 10.2217/nnm-2020-0163] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Accepted: 05/07/2020] [Indexed: 12/11/2022] Open
Abstract
Prior research on nanotechnologies in diagnostics, prevention and treatment of coronavirus infections is reviewed. Gold nanoparticles and semiconductor quantum dots in colorimetric and immunochromatographic assays, silica nanoparticles in the polymerase chain reaction and spike protein nanospheres as antigen carriers and adjuvants in vaccine formulations present notable examples in diagnostics and prevention, while uses of nanoparticles in coronavirus infection treatments have been merely sporadic. The current absence of antiviral therapeutics that specifically target human coronaviruses, including SARS-CoV-2, might be largely due to the underuse of nanotechnologies. Elucidating the interface between nanoparticles and coronaviruses is timely, but presents the only route to the rational design of precisely targeted therapeutics for coronavirus infections. Such a fundamental approach is also a viable prophylaxis against future pandemics of this type.
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Affiliation(s)
- Vuk Uskoković
- Department of Mechanical & Aerospace Engineering, University of California Irvine, Engineering Gateway 4200, Irvine, CA 92697, USA
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17
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Zhou J, Li Y, Wang W, Tan X, Lu Z, Han H. Metal-organic frameworks-based sensitive electrochemiluminescence biosensing. Biosens Bioelectron 2020; 164:112332. [PMID: 32553355 DOI: 10.1016/j.bios.2020.112332] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 05/23/2020] [Accepted: 05/25/2020] [Indexed: 11/29/2022]
Abstract
Metal-organic frameworks (MOFs) as porous materials have attracted much attention in various fields such as gas storage, catalysis, separation, and nanomedical engineering. However, their applications in electrochemiluminescence (ECL) biosensing are limited due to the poor conductivity, lack of modification sites, low stability and specificity, and weak biocompatibility. Integrating the functional materials into MOF structures endows MOF composites with improved conductivity and stability and facilitates the design of ECL sensors with multifunctional MOFs, which are potentially advantageous over their individual components. This review summarizes the strategies for designing ECL-active MOF composites including using luminophore as a ligand, in situ encapsulation of luminophore within the framework, and post-synthetic modification. As-prepared MOF composites can serve as innovative emitters, luminophore carriers, electrode modification materials and co-reaction accelerators in ECL biosensors. The sensing applications of ECl-active MOF composites in the past five years are highlighted including immunoassays, genosensors, and small molecule detection. Finally, the prospects and challenges associated with MOF composites and their related materials for ECL biosensing are tentatively proposed.
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Affiliation(s)
- Jiaojiao Zhou
- State Key Laboratory of Agricultural Microbiology, College of Food Science and Technology, College of Science, Huazhong Agricultural University, Wuhan, 430070, China
| | - Yun Li
- State Key Laboratory of Agricultural Microbiology, College of Food Science and Technology, College of Science, Huazhong Agricultural University, Wuhan, 430070, China
| | - Wenjing Wang
- State Key Laboratory of Agricultural Microbiology, College of Food Science and Technology, College of Science, Huazhong Agricultural University, Wuhan, 430070, China
| | - Xuecai Tan
- School of Chemistry and Chemical Engineering, Guangxi University for Nationalities, Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Key Laboratory of Guangxi Colleges and Universities for Food Safety and Pharmaceutical Analytical Chemistry, Nanning 530008, China
| | - Zhicheng Lu
- State Key Laboratory of Agricultural Microbiology, College of Food Science and Technology, College of Science, Huazhong Agricultural University, Wuhan, 430070, China
| | - Heyou Han
- State Key Laboratory of Agricultural Microbiology, College of Food Science and Technology, College of Science, Huazhong Agricultural University, Wuhan, 430070, China.
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18
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He L, Shen Z, Wang J, Zeng J, Wang W, Wu H, Wang Q, Gan N. Simultaneously responsive microfluidic chip aptasensor for determination of kanamycin, aflatoxin M1, and 17β-estradiol based on magnetic tripartite DNA assembly nanostructure probes. Mikrochim Acta 2020; 187:176. [DOI: 10.1007/s00604-020-4155-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2019] [Accepted: 02/08/2020] [Indexed: 11/29/2022]
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19
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Ning Z, Zheng Y, Pan D, Zhang Y, Shen Y. Coupling aptazyme and catalytic hairpin assembly for cascaded dual signal amplified electrochemiluminescence biosensing. Biosens Bioelectron 2019; 150:111945. [PMID: 31818762 DOI: 10.1016/j.bios.2019.111945] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 11/22/2019] [Accepted: 11/30/2019] [Indexed: 01/22/2023]
Abstract
Developing reliable and sensitive detection methods for adenosine triphosphate (ATP) is vital for both clinical diagnosis and food safety. In this work, by coupling aptazyme- and catalytic hairpin assembly (CHA)-based signal amplification and electrochemiluminescence (ECL), an ultrasensitive biosensor for sensing ATP was fabricated using Ru(bpy)32+-doped silica nanoparticles (RuSiO2) as ECL probes and a ferrocene-functionalized hairpin DNA (hairpin-Fc) as quencher. The aptazyme-triggered cleavage of the DNA substrate and the CHA reaction both led to the circular release of trigger DNA, resulting in a significant dual signal amplification, with unprecedented enhancement up to 940-fold. Moreover, the bioconjugation of the DNA substrate with Au@Fe3O4 facilitated the separation and purification of the released trigger DNA, and effectively reduced the background signal. As a result, the as-prepared ECL biosensor exhibited a much lower detection limit of 0.054 pM for ATP, compared to those in previous reports, and showed high reliability for ATP detection in both spiked serum samples and Staphylococcus aureus. This work offers a new perspective for designing nucleic acid-based signal amplification for detecting ATP in bacterial analysis and clinical diagnosis.
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Affiliation(s)
- Zhenqiang Ning
- Medical School, School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 210009, China
| | - Yongjun Zheng
- Medical School, School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 210009, China
| | - Deng Pan
- Medical School, School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 210009, China
| | - Yuanjian Zhang
- Medical School, School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 210009, China
| | - Yanfei Shen
- Medical School, School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 210009, China.
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20
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Zhang Y, Chai Y, Wang H, Yuan R. Target-Induced 3D DNA Network Structure as a Novel Signal Amplifier for Ultrasensitive Electrochemiluminescence Detection of MicroRNAs. Anal Chem 2019; 91:14368-14374. [DOI: 10.1021/acs.analchem.9b02817] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Yue Zhang
- Key Laboratory of Luminescence and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, People’s Republic of China
| | - Yaqin Chai
- Key Laboratory of Luminescence and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, People’s Republic of China
| | - Haijun Wang
- Key Laboratory of Luminescence and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, People’s Republic of China
| | - Ruo Yuan
- Key Laboratory of Luminescence and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, People’s Republic of China
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21
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Shen C, Liu S, Li X, Yang M. Electrochemical Detection of Circulating Tumor Cells Based on DNA Generated Electrochemical Current and Rolling Circle Amplification. Anal Chem 2019; 91:11614-11619. [PMID: 31452368 DOI: 10.1021/acs.analchem.9b01897] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Circulating tumor cells (CTCs) are important indicators for tumor diagnosis and tumor metastasis. However, the extremely low levels of CTCs in peripheral blood challenges the precise detection of CTCs. Herein, we report DNA generated electrochemical current combined with rolling circle amplification (RCA) as well as magnetic nanospheres for highly efficient magnetic capture and ultrasensitive detection of CTCs. The antiepithelial cell adhesion molecule (EpCAM) antibody-modified magnetic nanospheres were used to capture and enrich CTCs. The following binding of an aptamer onto the CTC surface and the subsequent RCA assembled a significant amount of DNA molecules onto the electrode. The reaction of the DNA molecules with molybdate can then form redox molybdophosphate and produce an electrochemical current. Using the breast cancer cell MCF-7 as a model, the sensor displays good performances toward detection of MCF-7 that was spiked into peripheral blood. The signal amplification strategy integrated with a magnetic nanosphere platform exhibits good performance in the efficient capture and detection of CTCs, which may find wide potential in cancer diagnostics and therapeutics.
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Affiliation(s)
- Congcong Shen
- Key Laboratory of Hunan Province for Water Environment and Agriculture Product Safety, College of Chemistry and Chemical Engineering , Central South University , Changsha 410083 , China.,School of Chemistry and Chemical Engineering , Henan Normal University , Xinxiang 453007 , China
| | - Shuping Liu
- Key Laboratory of Hunan Province for Water Environment and Agriculture Product Safety, College of Chemistry and Chemical Engineering , Central South University , Changsha 410083 , China
| | - Xiaoqing Li
- Key Laboratory of Hunan Province for Water Environment and Agriculture Product Safety, College of Chemistry and Chemical Engineering , Central South University , Changsha 410083 , China
| | - Minghui Yang
- Key Laboratory of Hunan Province for Water Environment and Agriculture Product Safety, College of Chemistry and Chemical Engineering , Central South University , Changsha 410083 , China
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22
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Zhao CQ, Ding SN. Perspective on signal amplification strategies and sensing protocols in photoelectrochemical immunoassay. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2019.03.018] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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23
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Chen R, Shi H, Meng X, Su Y, Wang H, He Y. Dual-Amplification Strategy-Based SERS Chip for Sensitive and Reproducible Detection of DNA Methyltransferase Activity in Human Serum. Anal Chem 2019; 91:3597-3603. [PMID: 30724066 DOI: 10.1021/acs.analchem.8b05595] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Herein, we present a dual-amplification sensing strategy-based surface-enhanced Raman scattering (SERS) chip, which combines rolling circle amplification (RCA) and polyadenine (PolyA) assembly for sensitive and reproducible determination of the activity of M.SssI, a cytosine-guanine dinucleotide (CpG) methyltransferase (MTase). Typically, in the presence of M.SssI, RCA process is triggered, resulting in long, single-stranded DNA (ssDNA) fragments that are hybridized with thousands of Raman reporters of Cy3. Afterward, the resultant ssDNA fragments are conjugated to SERS-active substrates made of silver core-gold satellite nanocomposites-modified silicon wafer (Ag-Au NPs@Si), with the SERS enhancement factor of ∼5 × 106. The core-satellite nanostructures are assembled relied on the strong affinity of PolyA toward gold/silver surface. Of particular significance, the developed SERS chip displays an ultrahigh sensitivity with a low limit of detection (LOD) of 2.8 × 10-3 U/mL, which is around 2 orders of magnitude higher than most reported methods. In addition, the constructed chip features a broad detection range covering from 0.05 to 50 U/mL. Besides for the ultrahigh sensitivity and broad dynamic range, the chip also features good reproducibility (e.g., the relative standard deviation (RSD) is less than ∼12%). Taking advantages of these merits, the developed chip is feasible for accurate discrimination of M.SssI with various concentrations spiked in human serum samples with good recoveries ranging from 99.6% to 107%.
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Affiliation(s)
- Runzhi Chen
- Laboratory of Nanoscale Biochemical Analysis, Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Institute of Functional Nano & Soft Materials (FUNSOM), and Collaborative Innovation Center of Suzhou Nano Science and Technology (NANO-CIC) , Soochow University , Suzhou , Jiangsu 215123 , China
| | - Huayi Shi
- Laboratory of Nanoscale Biochemical Analysis, Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Institute of Functional Nano & Soft Materials (FUNSOM), and Collaborative Innovation Center of Suzhou Nano Science and Technology (NANO-CIC) , Soochow University , Suzhou , Jiangsu 215123 , China
| | - Xinyu Meng
- Laboratory of Nanoscale Biochemical Analysis, Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Institute of Functional Nano & Soft Materials (FUNSOM), and Collaborative Innovation Center of Suzhou Nano Science and Technology (NANO-CIC) , Soochow University , Suzhou , Jiangsu 215123 , China
| | - Yuanyuan Su
- Laboratory of Nanoscale Biochemical Analysis, Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Institute of Functional Nano & Soft Materials (FUNSOM), and Collaborative Innovation Center of Suzhou Nano Science and Technology (NANO-CIC) , Soochow University , Suzhou , Jiangsu 215123 , China
| | - Houyu Wang
- Laboratory of Nanoscale Biochemical Analysis, Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Institute of Functional Nano & Soft Materials (FUNSOM), and Collaborative Innovation Center of Suzhou Nano Science and Technology (NANO-CIC) , Soochow University , Suzhou , Jiangsu 215123 , China
| | - Yao He
- Laboratory of Nanoscale Biochemical Analysis, Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Institute of Functional Nano & Soft Materials (FUNSOM), and Collaborative Innovation Center of Suzhou Nano Science and Technology (NANO-CIC) , Soochow University , Suzhou , Jiangsu 215123 , China
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24
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Peng L, Yuan Y, Fu X, Fu A, Zhang P, Chai Y, Gan X, Yuan R. Reversible and Distance-Controllable DNA Scissor: A Regenerated Electrochemiluminescence Biosensing Platform for Ultrasensitive Detection of MicroRNA. Anal Chem 2019; 91:3239-3245. [DOI: 10.1021/acs.analchem.8b02757] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Lichun Peng
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry(Southwest University), Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, People’s Republic of China
| | - Yali Yuan
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry(Southwest University), Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, People’s Republic of China
| | - Xiaomin Fu
- College of Chemistry and Chemical Engineering, Yibin University, Yibin, Sichuan 644007, People’s Republic of China
| | - Ao Fu
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry(Southwest University), Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, People’s Republic of China
| | - Pu Zhang
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry(Southwest University), Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, People’s Republic of China
| | - Yaqin Chai
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry(Southwest University), Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, People’s Republic of China
| | - Xianxue Gan
- College of Chemistry and Chemical Engineering, Yibin University, Yibin, Sichuan 644007, People’s Republic of China
| | - Ruo Yuan
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry(Southwest University), Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, People’s Republic of China
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25
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Wang S, Ji Y, Fu H, Ju H, Lei J. A rolling circle amplification-assisted DNA walker triggered by multiple DNAzyme cores for highly sensitive electrochemical biosensing. Analyst 2019; 144:691-697. [DOI: 10.1039/c8an01892h] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A DNA walker triggered by multiple DNAzyme cores was constructed with the assistance of rolling circle amplification for electrochemical biosensing.
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Affiliation(s)
- Sina Wang
- State Key Laboratory of Analytical Chemistry for Life Science
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210023
- China
| | - Yuhang Ji
- State Key Laboratory of Analytical Chemistry for Life Science
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210023
- China
| | - Haomin Fu
- State Key Laboratory of Analytical Chemistry for Life Science
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210023
- China
| | - Huangxian Ju
- State Key Laboratory of Analytical Chemistry for Life Science
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210023
- China
| | - Jianping Lei
- State Key Laboratory of Analytical Chemistry for Life Science
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210023
- China
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