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Chen X, Dai Q, Qiu X, Luo X, Li Y. New nanosensor fabricated on single nanopore electrode filled with prussian blue and graphene quantum dots coated by polypyrrole for hydrogen peroxide sensing. Talanta 2024; 274:126043. [PMID: 38581852 DOI: 10.1016/j.talanta.2024.126043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 03/06/2024] [Accepted: 04/02/2024] [Indexed: 04/08/2024]
Abstract
Hydrogen peroxide (H2O2) is a common oxidant that plays an important role in many biological processes and is also an important medium analysis in various fields. In this work, a new electrochemical nanosensor capable of detecting and quantifying hydrogen peroxide was introduced. This nanosensor was fabricated by electrodepositing prussian blue (PB)/graphene quantum dots (GQDs)/polypyrrole (PPy) on single nanopore electrode etched from single gold nanoelectrode. This prepapred nanosensor exhibits good electrochemical response to hydrogen peroxide with high sensitivity and stability, with a linear response in the 2.0 and 80 μM by using amperometric method and differential pulse voltammetry (DPV) method. The limit of detections are 0.33 μM (S/N = 3) for amperometric method and 0.67 μM (S/N = 3) for differential pulse voltammetry (DPV) method, respectively. This nanosensor can be used for the determination of hydrogen peroxide in human urine, and can serve as a new electrochemical platform to monitor H2O2 release from single living cells due to its small overal dimension and high sensitivity.
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Affiliation(s)
- Xiaohu Chen
- Anhui Province Key Laboratory of Biomedical Materials and Chemical Measurement, Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241000, PR China
| | - Qingshan Dai
- Anhui Province Key Laboratory of Biomedical Materials and Chemical Measurement, Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241000, PR China
| | - Xia Qiu
- Anhui Province Key Laboratory of Biomedical Materials and Chemical Measurement, Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241000, PR China
| | - Xianzhun Luo
- Anhui Province Key Laboratory of Biomedical Materials and Chemical Measurement, Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241000, PR China
| | - Yongxin Li
- Anhui Province Key Laboratory of Biomedical Materials and Chemical Measurement, Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241000, PR China.
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2
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Qiu X, Dong J, Dai Q, Huang M, Li Y. Functionalized nanopores based on hybridization chain reaction: Fabrication and microRNA sensing. Biosens Bioelectron 2023; 240:115594. [PMID: 37660458 DOI: 10.1016/j.bios.2023.115594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 07/28/2023] [Accepted: 08/10/2023] [Indexed: 09/05/2023]
Abstract
Enzyme-free hybridization chain reaction (HCR) technology is often used as a signal amplification tool for the detection of different targets. In this study, an ultrasensitive and label-free method for detecting miRNA-21 was developed using the nanopore ionic current rectification (ICR) technology coupled with HCR technology. The probe oligonucleotide (DNA1) was combined with the gold-coated nanopore through the Au-S bond to form a DNA1-functionalized gold-coated nanopore (DNA1-Au-coated nanopore). Since miRNA-21 is partially complementary to DNA1, it can be selectively recognized by DNA1-functionalized gold-coated nanopores. The target (miRNA-21) can induce the opening of hairpin DNA and HCR reaction after the introduction of hairpin DNA H1 and H2. The concentration of miRNA-21 will affect the combination of H1 and H2 on the inner wall of the nanopore, and its surface charge will change with the internal modification, thereby changing the ion current rectification ratio. Under the condition that the concentration of H1, H2 and HCR reaction time are constant, the change of ICR ratio is linearly correlated with the logarithm of miRNA-21 concentration within a certain range, which shows that the sensing strategy we designed can achieve target miRNA-21 detection. This ultrasensitive miRNA holds great promise in the field of cancer diagnosis.
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Affiliation(s)
- Xia Qiu
- Key Laboratory of Functional Molecular Solid, Ministry of Education, Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241000, PR China
| | - Jingyi Dong
- Key Laboratory of Functional Molecular Solid, Ministry of Education, Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241000, PR China
| | - Qingshan Dai
- Key Laboratory of Functional Molecular Solid, Ministry of Education, Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241000, PR China
| | - Mimi Huang
- Key Laboratory of Functional Molecular Solid, Ministry of Education, Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241000, PR China
| | - Yongxin Li
- Key Laboratory of Functional Molecular Solid, Ministry of Education, Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241000, PR China.
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3
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Yang YJ, Bai YY, Huangfu YY, Yang XY, Tian YS, Zhang ZL. Single-Nanoparticle Collision Electrochemistry Biosensor Based on an Electrocatalytic Strategy for Highly Sensitive and Specific Detection of H7N9 Avian Influenza Virus. Anal Chem 2022; 94:8392-8398. [DOI: 10.1021/acs.analchem.2c00913] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Yan-Ju Yang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P. R. China
| | - Yi-Yan Bai
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P. R. China
| | - Yue-Yue Huangfu
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P. R. China
| | - Xiao-Yan Yang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P. R. China
| | - Yi-Shen Tian
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P. R. China
| | - Zhi-Ling Zhang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P. R. China
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4
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Zhu Y, Tang H, Wang H, Li Y. In Situ SERS Monitoring of the Plasmon-Driven Catalytic Reaction by Using Single Ag@Au Nanowires as Substrates. Anal Chem 2021; 93:11736-11744. [PMID: 34461733 DOI: 10.1021/acs.analchem.1c01926] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Single nanowires (NWs), as a kind of new surface-enhanced Raman scattering (SERS) substrates, have received extensive concern owing to their distinctive properties and distinct advantages. In this contribution, single Ag nanowires (AgNWs) and single Au-coated AgNWs (Ag@AuNWs) were fabricated by the laser-assisted pulling method and the galvanic replacement reaction, respectively. The prepared single Ag@AuNWs show both high SERS activity and catalytic activity through in situ monitoring and assessing the plasmon-driven surface-catalytic reaction of 4-nitrothiophenol (4-NTP) dimerizing to 4,4'-dimercaptoazobenzene and the reduction reaction of 4-NTP to para-aminothiophenol, respectively. It was found that the intensity of the Raman peak was affected greatly by the laser power, and the Raman peak could still be observed at 0.05% power under mild conditions (633 nm wavelength) in this single nanowire system. From the Raman spectrum, the SERS enhancement factor (EF) of 5.4 × 104 can be obtained, and the EF value of 1.3 × 109 can be reached at optimal conditions. Results have shown that single Ag@AuNWs can be utilized as a good platform for SERS applications with high sensitivity, stability, and reproducibility, which will benefit SERS-based research at the single entity level.
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Affiliation(s)
- Yanyan Zhu
- Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P.R. China
| | - Haoran Tang
- Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P.R. China
| | - Hao Wang
- Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P.R. China
| | - Yongxin Li
- Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P.R. China
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Wang H, Yang C, Tang H, Li Y. Stochastic Collision Electrochemistry from Single G-Quadruplex/Hemin: Electrochemical Amplification and MicroRNA Sensing. Anal Chem 2021; 93:4593-4600. [PMID: 33660976 DOI: 10.1021/acs.analchem.0c05055] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Stochastic collision electrochemistry is a hot topic in single molecule/particle research, which provides an opportunity to investigate the details of the single molecule/particle reaction mechanism that is always masked in ensemble-averaged measurements. In this work, we develop an electrochemical amplification strategy to monitor the electrocatalytic behavior of single G-quadruplex/hemin (GQH) for the reaction between hydrogen peroxide and hydroquinone (HQ) through the collision upon a gold nanoelectrode. The intrinsic peroxidase activities of single GQH were investigated by stochastic collision electrochemical measurements, giving further insights into understanding biocatalytic processes. Based on the unique catalytic activity of GQH, we have also designed a hybridization chain reaction strategy to detect miRNA-15 with good selectivity and sensitivity. This work provided a meaningful strategy to investigate the electrochemical amplification and the broad application for nucleic acid sensing at the single molecule/particle level.
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Affiliation(s)
- Hao Wang
- Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China
| | - Cheng Yang
- Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China
| | - Haoran Tang
- Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China
| | - Yongxin Li
- Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China
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6
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Zhao D, Tang H, Wang H, Yang C, Li Y. Analytes Triggered Conformational Switch of i-Motif DNA inside Gold-Decorated Solid-State Nanopores. ACS Sens 2020; 5:2177-2183. [PMID: 32588619 DOI: 10.1021/acssensors.0c00798] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The nanopore-based technique is a useful tool for single-molecule sensing and characterization. In this work, we have developed a new DNA-functionalized gold-modified nanopore, and analytes can induce the conformational switch of i-motif DNA formed on the inner surface of the nanopore. i-Motif DNA structure can be formed in the presence of silver ions (Ag+), which will result in the change in surface charge and structure of the nanopore tip and ion current rectification (ICR) ratio. The i-motif DNA structure on nanopore surface will be destroyed after the addition of glutathione (GSH) due to the strong interaction of Ag-S bond, which results in the recovery of surface charge, steric hindrance, and ICR ratio. This analyte-triggered conformational switch of i-motif DNA can help us deeply understand the DNA technology inside single nanopore and will benefit the possible applications in an ultrasensitive detection and biological/chemical analysis.
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Affiliation(s)
- Dandan Zhao
- Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China
| | - Haoran Tang
- Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China
| | - Hao Wang
- Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China
| | - Cheng Yang
- Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China
| | - Yongxin Li
- Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China
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7
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Bai YY, Wu Z, Xu CM, Zhang L, Feng J, Pang DW, Zhang ZL. One-to-Many Single Entity Electrochemistry Biosensing for Ultrasensitive Detection of microRNA. Anal Chem 2019; 92:853-858. [PMID: 31755700 DOI: 10.1021/acs.analchem.9b03492] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Single-entity electrochemistry (SEEC), a promising method for biosensing, has an intrinsic limitation on sensitivity since at most one colliding entity can be successfully triggered by one target. Here, we take advantage of one-to-many (1:n) signal amplification to develop a new single-entity electrochemistry biosensing (SEECBS), integrating satellite magnetic nanoparticle (MN)-DNA-Pt nanoparticle (NP) conjugates, duplex-specific nuclease (DSN) assisted Pt NPs releasing with stabilization, and effective collision of small sized and nearly naked Pt NPs. Compared with conventional SEECBS, the 1:n SEECBS can successfully enrich ∼2 nM Pt NPs by adding 50 aM microRNA (miRNA), in other words, ∼4 × 107 Pt NPs can be triggered by one target. The proposed SEECBS allows the detection of 47 aM miRNA-21, nearly 6 orders of magnitude lower than the previous work, and discrimination of nontarget miRNAs containing even single-nucleotide mismatch. Besides, this method has also been successfully demonstrated for quantification of miRNA in different cell lines. Therefore, the proposed method holds great potential for the application of SEECBS in early diagnosis and prognosis monitoring of cancer.
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Affiliation(s)
- Yi-Yan Bai
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences , Wuhan University , Wuhan 430072 , People's Republic of China
| | - Zhen Wu
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules and College of Chemistry and Chemical Engineering , Hubei University , Wuhan 430062 , People's Republic of China
| | - Chun-Miao Xu
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences , Wuhan University , Wuhan 430072 , People's Republic of China
| | - Li Zhang
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences , Wuhan University , Wuhan 430072 , People's Republic of China
| | - Jiao Feng
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences , Wuhan University , Wuhan 430072 , People's Republic of China
| | - Dai-Wen Pang
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences , Wuhan University , Wuhan 430072 , People's Republic of China
| | - Zhi-Ling Zhang
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences , Wuhan University , Wuhan 430072 , People's Republic of China
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8
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Amperometric sensing of hydrazine by using single gold nanopore electrodes filled with Prussian Blue and coated with polypyrrole and carbon dots. Mikrochim Acta 2019; 186:350. [PMID: 31093761 DOI: 10.1007/s00604-019-3486-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Accepted: 05/05/2019] [Indexed: 01/26/2023]
Abstract
A nanoprobe for hydrazine sensing is described that is making use of a single gold nanopore electrode (SAuNPEs) that was modified by electro-deposition of Prussian Blue (PB) and then coated with a thin membrane of polypyrrole and carbon dots in order to enhance stability and catalytic activity. Best operated at a low potential of 0.3 V vs. Ag/AgCl, the nanosensor display good electrocatalytic activity towards the oxidation of hydrazine, with a linear response in the 0.5-80 μM hydrazine concentration range and a 0.18 μM detection limit (at S/N = 3). The method was applied to the determination of hydrazine in human urine. Graphical abstract Schematic presentation of the electrocatalytic oxidation of hydrazine using a single gold nanopore electrode that was modified by electro-deposition of Prussian Blue and then coated with a thin membrane of polypyrrole and carbon dots.
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9
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On-chip suspended gold nanowire electrode with a rough surface: Fabrication and electrochemical properties. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.02.106] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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10
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Tang H, Zhu J, Wang D, Li Y. Dual-signal amplification strategy for miRNA sensing with high sensitivity and selectivity by use of single Au nanowire electrodes. Biosens Bioelectron 2019; 131:88-94. [DOI: 10.1016/j.bios.2019.02.023] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Revised: 01/15/2019] [Accepted: 02/01/2019] [Indexed: 12/15/2022]
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11
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Wang D, Hua H, Liu Y, Tang H, Li Y. Single Ag Nanowire Electrodes and Single Pt@Ag Nanowire Electrodes: Fabrication, Electrocatalysis, and Surface-Enhanced Raman Scattering Applications. Anal Chem 2019; 91:4291-4295. [DOI: 10.1021/acs.analchem.8b04610] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Dongmei Wang
- Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241000, P.R. China
- College of Chemistry and Material Engineering, Chaohu University, Chaohu, Anhui 238000, P.R. China
| | - Hongmei Hua
- Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241000, P.R. China
| | - Yong Liu
- Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241000, P.R. China
| | - Haoran Tang
- Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241000, P.R. China
| | - Yongxin Li
- Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241000, P.R. China
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12
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Tang H, Hao H, Zhu J, Guan X, Qiu B, Li Y. Single Pt–Pd Bimetallic Nanoparticle Electrode: Controllable Fabrication and Unique Electrocatalytic Performance for the Methanol Oxidation Reaction. Chemistry 2019; 25:4935-4940. [DOI: 10.1002/chem.201900076] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2019] [Indexed: 11/12/2022]
Affiliation(s)
- Haoran Tang
- Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials ScienceAnhui Normal University Wuhu 241000 P.R. China
| | - Huan Hao
- Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials ScienceAnhui Normal University Wuhu 241000 P.R. China
| | - Jiahui Zhu
- Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials ScienceAnhui Normal University Wuhu 241000 P.R. China
| | - Xianping Guan
- Key Laboratory of Modern Agricultural Equipment and Technology, Ministry of EducationJiangsu University Zhenjiang 212013 P.R. China
| | - Baijing Qiu
- Key Laboratory of Modern Agricultural Equipment and Technology, Ministry of EducationJiangsu University Zhenjiang 212013 P.R. China
| | - Yongxin Li
- Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials ScienceAnhui Normal University Wuhu 241000 P.R. China
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13
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Buk V, Pemble ME. A highly sensitive glucose biosensor based on a micro disk array electrode design modified with carbon quantum dots and gold nanoparticles. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2018.12.068] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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14
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Wang D, Hua H, Tang H, Yang C, Chen W, Li Y. A signal amplification strategy and sensing application using single gold nanoelectrodes. Analyst 2019; 144:310-316. [PMID: 30406238 DOI: 10.1039/c8an01474d] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
In this work, a label-free electrochemical apta-nanosensor was fabricated on a single gold nanodisk electrode (AuNDE) for thrombin sensing with high sensitivity via a novel signal amplification strategy. This recognition platform was fabricated via self-assembly of helper DNA (HP-DNA), thrombin-binding aptamer (TBA) and gold nanoparticle (AuNP)-DNA complexes to form a sandwich structure on the AuNDE surface. A novel signal amplification strategy via designed AuNP-DNA complexes was introduced using Ru(NH3)63+ as the signal reporter based on the electrostatic interaction. In the presence of thrombin, the strong interaction between the TBA and target led to the dissociation of sandwich DNA complexes from the AuNDE, which resulted in the reduction current of Ru(NH3)63+. This proposed sensing platform showed a wide detection range of 0.1 pM-5 nM and a low detection limit of 0.02 pM. Considering the small overall dimensions and high sensitivity, this nanosensor can be potentially applied for bioanalysis in living biosystems.
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Affiliation(s)
- Dongmei Wang
- Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241000, P. R. China. and College of Chemistry and Material Engineering, Chaohu University, Chaohu, Anhui 238000, P.R. China
| | - Hongmei Hua
- Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241000, P. R. China.
| | - Haoran Tang
- Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241000, P. R. China.
| | - Cheng Yang
- Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241000, P. R. China.
| | - Wei Chen
- Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241000, P. R. China.
| | - Yongxin Li
- Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241000, P. R. China.
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15
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Hua H, Liu Y, Wang D, Li Y. Size-Dependent Voltammetry at Single Silver Nanoelectrodes. Anal Chem 2018; 90:9677-9681. [DOI: 10.1021/acs.analchem.8b02644] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Hongmei Hua
- Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, P.R. China
| | - Yong Liu
- Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, P.R. China
| | - Dongmei Wang
- Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, P.R. China
| | - Yongxin Li
- Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, P.R. China
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16
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Ding S, Liu Y, Ma C, Zhang J, Zhu A, Shi G. Development of Glass-sealed Gold Nanoelectrodes for in vivo
Detection of Dopamine in Rat Brain. ELECTROANAL 2018. [DOI: 10.1002/elan.201700522] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Shushu Ding
- School of Chemistry and Molecular Engineering; East China Normal University; 500 Dongchuan Road Shanghai 200241 People's Republic of China
| | - Yingzi Liu
- Institute of Brain Functional Genomics; East China Normal University; 3663 Zhongshan Road North Shanghai 200062 People's Republic of China
| | - Chunrong Ma
- School of Chemistry and Molecular Engineering; East China Normal University; 500 Dongchuan Road Shanghai 200241 People's Republic of China
| | - Junqi Zhang
- School of Chemistry and Molecular Engineering; East China Normal University; 500 Dongchuan Road Shanghai 200241 People's Republic of China
| | - Anwei Zhu
- School of Chemistry and Molecular Engineering; East China Normal University; 500 Dongchuan Road Shanghai 200241 People's Republic of China
| | - Guoyue Shi
- School of Chemistry and Molecular Engineering; East China Normal University; 500 Dongchuan Road Shanghai 200241 People's Republic of China
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17
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Hua H, Liu Y, Guan X, Li Y. DNA nanosensors based on the use of single gold nanowire electrodes and Methylene Blue as an intercalator. Mikrochim Acta 2018; 185:152. [DOI: 10.1007/s00604-018-2703-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Accepted: 01/22/2018] [Indexed: 10/18/2022]
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18
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Qian Y, Zhu J, Li Y. Single Cylindrical Nanopore Electrodes: Surface Functionalization, Unusual Voltammetry, and Size-Exclusion Properties. ChemElectroChem 2017. [DOI: 10.1002/celc.201701096] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Yuanyuan Qian
- Anhui Key Laboratory of Chemo-/Biosensing, College of Chemistry and Materials Science; Anhui Normal University; Wuhu 241000 P.R. China
| | - Jiahui Zhu
- Anhui Key Laboratory of Chemo-/Biosensing, College of Chemistry and Materials Science; Anhui Normal University; Wuhu 241000 P.R. China
| | - Yongxin Li
- Anhui Key Laboratory of Chemo-/Biosensing, College of Chemistry and Materials Science; Anhui Normal University; Wuhu 241000 P.R. China
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19
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Wang D, Xiao X, Xu S, Liu Y, Li Y. Electrochemical aptamer-based nanosensor fabricated on single Au nanowire electrodes for adenosine triphosphate assay. Biosens Bioelectron 2017; 99:431-437. [PMID: 28810234 DOI: 10.1016/j.bios.2017.08.020] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Revised: 07/30/2017] [Accepted: 08/08/2017] [Indexed: 02/06/2023]
Abstract
In this work, single Au nanowire electrodes (AuNWEs) were fabricated by laser-assisted pulling/hydrofluoric acid (HF) etching process, which then were characterized by transmission electron microscopy (TEM), electrochemical method and finite-element simulation. The as-prepared single AuNWEs were used to construct electrochemical aptamer-based nanosensors (E-AB nanosensors) based on the formation of Au-S bond that duplex DNA tagged with methylene blue (MB) was modified on the surface of electrode. In the presence of adenosine triphosphate (ATP), the MB-labeled aptamer dissociated from the duplex DNA due to the strong specific affinity between aptamer and target, which lead to the reduction of MB electrochemical signals. Moreover, BSA was employed to further passivate electrode surface bonding sites for the stable of the sensor. The as-prepared E-AB nanosensor has been used for ATP assay with excellent sensitivity and selectivity, even in a complex system like cerebrospinal fluid of rat brain. Considering the unique properties of good stability, larger surface area and smaller overall dimensions, this E-AB nanosensor should be an ideal platform for widely sensing applications in living bio-system.
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Affiliation(s)
- Dongmei Wang
- Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, PR China; College of Chemistry and Material Engineering, Chaohu University, Chaohu, Anhui 238000, PR China
| | - Xiaoqing Xiao
- Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, PR China
| | - Shen Xu
- Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, PR China
| | - Yong Liu
- Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, PR China
| | - Yongxin Li
- Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, PR China.
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Zhang Y, Xu S, Xiao X, Liu Y, Qian Y, Li Y. Single gold nanowire electrodes and single Pt@Au nanowire electrodes: electrochemistry and applications. Chem Commun (Camb) 2017; 53:2850-2853. [DOI: 10.1039/c6cc09854a] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Single Au nanowire electrodes and single Pt@Au nanowire electrodes have been prepared and used to investigate electrochemical properties, fabricate an E-DNA sensor and study the oxygen reduction reaction.
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Affiliation(s)
- Yaoyao Zhang
- Anhui Key Laboratory of Chemo/Biosensing
- College of Chemistry and Materials Science
- Anhui Normal University
- Wuhu
- P. R. China
| | - Shen Xu
- Anhui Key Laboratory of Chemo/Biosensing
- College of Chemistry and Materials Science
- Anhui Normal University
- Wuhu
- P. R. China
| | - Xiaoqing Xiao
- Anhui Key Laboratory of Chemo/Biosensing
- College of Chemistry and Materials Science
- Anhui Normal University
- Wuhu
- P. R. China
| | - Yong Liu
- Anhui Key Laboratory of Chemo/Biosensing
- College of Chemistry and Materials Science
- Anhui Normal University
- Wuhu
- P. R. China
| | - Yuanyuan Qian
- Anhui Key Laboratory of Chemo/Biosensing
- College of Chemistry and Materials Science
- Anhui Normal University
- Wuhu
- P. R. China
| | - Yongxin Li
- Anhui Key Laboratory of Chemo/Biosensing
- College of Chemistry and Materials Science
- Anhui Normal University
- Wuhu
- P. R. China
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21
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Liu Y, Zhang Y, Hua H, Li Y. Fabrication of single Pt@Au nanowire electrodes for monitoring hydrogen peroxide released from living cells. RSC Adv 2017. [DOI: 10.1039/c7ra08085a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Single Pt@AuNWEs were fabricated by a Cu UPD/Pt redox replacement technique, and were applied to monitoring H2O2 released from living cells.
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Affiliation(s)
- Yong Liu
- Anhui Key Laboratory of Chemo/Biosensing
- College of Chemistry and Materials Science
- Anhui Normal University
- Wuhu
- P. R. China
| | - Yaoyao Zhang
- Anhui Key Laboratory of Chemo/Biosensing
- College of Chemistry and Materials Science
- Anhui Normal University
- Wuhu
- P. R. China
| | - Hongmei Hua
- Anhui Key Laboratory of Chemo/Biosensing
- College of Chemistry and Materials Science
- Anhui Normal University
- Wuhu
- P. R. China
| | - Yongxin Li
- Anhui Key Laboratory of Chemo/Biosensing
- College of Chemistry and Materials Science
- Anhui Normal University
- Wuhu
- P. R. China
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22
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Lability of nanoparticulate metal complexes in electrochemical speciation analysis. J Solid State Electrochem 2016. [DOI: 10.1007/s10008-016-3372-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Fan Y, Han C, Zhang B. Recent advances in the development and application of nanoelectrodes. Analyst 2016; 141:5474-87. [PMID: 27510555 DOI: 10.1039/c6an01285j] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Nanoelectrodes have key advantages compared to electrodes of conventional size and are the tool of choice for numerous applications in both fundamental electrochemistry research and bioelectrochemical analysis. This Minireview summarizes recent advances in the development, characterization, and use of nanoelectrodes in nanoscale electroanalytical chemistry. Methods of nanoelectrode preparation include laser-pulled glass-sealed metal nanoelectrodes, mass-produced nanoelectrodes, carbon nanotube based and carbon-filled nanopipettes, and tunneling nanoelectrodes. Several new topics of their recent application are covered, which include the use of nanoelectrodes for electrochemical imaging at ultrahigh spatial resolution, imaging with nanoelectrodes and nanopipettes, electrochemical analysis of single cells, single enzymes, and single nanoparticles, and the use of nanoelectrodes to understand single nanobubbles.
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Affiliation(s)
- Yunshan Fan
- Department of Chemistry, University of Washington, Seattle, Washington 98115, USA.
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