1
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Gao N, Ren G, Zhang M, Mao L. Electroless Deposition of Palladium Nanoparticles on Graphdiyne Boosts Electrochemiluminescence. J Am Chem Soc 2024; 146:3836-3843. [PMID: 38306697 DOI: 10.1021/jacs.3c11009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2024]
Abstract
Modulating the electronic structure of metal nanoparticles via metal-support interaction has attracted intense interest in the field of catalytic science. However, the roles of supporting substrates in regulating the catalytic properties of electrochemiluminescence (ECL) remain elusive. Here, we find that the use of graphdiyne (GDY) as the substrate for electroless deposition of Pd nanoparticles (Pd/GDY) produces the most pronounced anodic signal enhancement in luminol-dissolved oxygen (O2) ECL system as co-reactant accelerator over other carbon-based Pd composite nanomaterials. Pd/GDY exhibits electrocatalytic activity for the reduction of O2 through a four-electron pathway at approximately -0.059 V (vs Ag/AgCl) in neutral solution forming reactive oxygen species (ROS) as intermediates. The study shows that the interaction of Pd and GDY increases the amount and stability of ROS on the Pd/GDY electrode surface and promotes the reaction of ROS and luminol anion radical to generate excited luminol, which significantly boosts the luminol anodic ECL emission. Based on quenching of luminol ECL through the consumption of ROS by antioxidants, we develop a platform for the detection of intracellular antioxidants. This study provides an avenue for the development of efficient luminol ECL systems in neutral media and expands the biological application of ECL systems.
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Affiliation(s)
- Nan Gao
- Department of Chemistry, Renmin University of China, Beijing 100872, China
| | - Guoyuan Ren
- Department of Chemistry, Renmin University of China, Beijing 100872, China
| | - Meining Zhang
- Department of Chemistry, Renmin University of China, Beijing 100872, China
| | - Lanqun Mao
- College of Chemistry, Beijing Normal University, Beijing 100875, China
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2
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Yu Y, Nie W, Chu K, Wei X, Smith ZJ. Highly Sensitive, Portable Detection System for Multiplex Chemiluminescence Analysis. Anal Chem 2023; 95:14762-14769. [PMID: 37729474 DOI: 10.1021/acs.analchem.3c02920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/22/2023]
Abstract
Chemiluminescence (CL) has emerged as a critical tool for the sensing and quantification of various bioanalytes in virtually all clinical fields. However, the rapid nature of many CL reactions raises challenges for typical low-cost optical sensors such as cameras to achieve accurate and sensitive detection. Meanwhile, classic sensors such as photomultiplier tubes are highly sensitive but lack spatial multiplexing capabilities and are generally not suited for point-of-care applications outside a standard laboratory setting. To address this issue, in this paper, a miniaturized and versatile silicon-photomultiplier-based fiber-integrated CL device (SFCD) was designed for sensitive multiplex CL detection. The SFCD comprises a silicon photomultiplier array coupled to an array of high numerical aperture plastic optical fibers to achieve 16-plex detection. The optical fibers ensure efficient light collection while allowing the fixed detector to be mated with diverse sample geometries (e.g., circular or grid), simply by adjusting the fiber configuration. In a head-to-head comparison with a lens-based camera system featuring a cooled detector, the SFCD achieved a 14-fold improved limit of detection in both direct and enzyme-mediated CL reactions. The SFCD also features improved compactness and lower cost, as well as faster temporal resolution compared with camera-based systems while preserving spatial multiplexing and good environmental robustness. Thus, the SFCD has excellent potential for point-of-care biosensing applications.
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Affiliation(s)
- Yannan Yu
- Key Laboratory of Scientific Instrumentation of Anhui Higher Education Institutes, Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, 96 JinZhai Road, Hefei 230026, China
| | - Wei Nie
- Department of Chemistry, University of Science and Technology of China, 96 JinZhai Road, Hefei 230026, China
| | - Kaiqin Chu
- Key Laboratory of Scientific Instrumentation of Anhui Higher Education Institutes, Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, 96 JinZhai Road, Hefei 230026, China
| | - Xi Wei
- Department of Chemistry, University of Science and Technology of China, 96 JinZhai Road, Hefei 230026, China
| | - Zachary J Smith
- Key Laboratory of Scientific Instrumentation of Anhui Higher Education Institutes, Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, 96 JinZhai Road, Hefei 230026, China
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3
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Zhao C, Ma C, Zhang F, Lai W, Hong C, Qi Y. Preparation of oxidized acetylene black by high-temperature calcination for luminol efficient cathodic electrochemiluminescence. J Colloid Interface Sci 2023; 645:997-1004. [PMID: 37183158 DOI: 10.1016/j.jcis.2023.05.034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 04/25/2023] [Accepted: 05/05/2023] [Indexed: 05/16/2023]
Abstract
The improvement of electrochemiluminescence (ECL) intensity in luminol, a classic electrochemiluminescent material, remains a controversial topic. In this study, synthesis of acetylene black oxide (ACETO) through simple air annealing was successful in introducing oxygen-containing groups and defects, which can act as active sites for the oxygen reduction reaction (ORR) and exhibit excellent catalytic activity. By introducing the two-electron (2e-) ORR into the cathode ECL system of luminol, integration of ACETO and luminol allows for in situ generation of dissolved oxygen into reactive oxygen species (ROS), thereby enhancing the ECL intensity of luminol. It is worth noting that iron-nitrogen-carbon (FeNC), as a secondary antibody (Ab2) label, can catalyze the decomposition of H2O2, the product of 2e- ORR, into ROS to achieve ECL amplification. Alpha-fetoprotein (AFP), an important tumor marker, was successfully detected with a detection limit of 0.01 pg/mL, indicating that this ECL signal amplification strategy has broad application prospects in biological analysis.
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Affiliation(s)
- Chulei Zhao
- School of Chemistry and Chemical Engineering/State Key Laboratory Incubation Base for Green Processing of Chemical Engineering, Shihezi University, Xinjiang Uygur Autonomous Region, PR China
| | - Chaoyun Ma
- School of Chemistry and Chemical Engineering/State Key Laboratory Incubation Base for Green Processing of Chemical Engineering, Shihezi University, Xinjiang Uygur Autonomous Region, PR China
| | - Fuping Zhang
- School of Chemistry and Chemical Engineering/State Key Laboratory Incubation Base for Green Processing of Chemical Engineering, Shihezi University, Xinjiang Uygur Autonomous Region, PR China
| | - Wenjing Lai
- School of Chemistry and Chemical Engineering/State Key Laboratory Incubation Base for Green Processing of Chemical Engineering, Shihezi University, Xinjiang Uygur Autonomous Region, PR China
| | - Chenglin Hong
- School of Chemistry and Chemical Engineering/State Key Laboratory Incubation Base for Green Processing of Chemical Engineering, Shihezi University, Xinjiang Uygur Autonomous Region, PR China.
| | - Yu Qi
- School of Chemistry and Chemical Engineering/State Key Laboratory Incubation Base for Green Processing of Chemical Engineering, Shihezi University, Xinjiang Uygur Autonomous Region, PR China.
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4
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Wang Z, Guo H, Luo Z, Duan Y, Feng Y. Low-Triggering-Potential Electrochemiluminescence from a Luminol Analogue Functionalized Semiconducting Polymer Dots for Imaging Detection of Blood Glucose. Anal Chem 2022; 94:5615-5623. [PMID: 35352933 DOI: 10.1021/acs.analchem.1c05377] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
In recent years, semiconducting polymer dots (Pdots) as environmentally friendly and high-brightness electrochemiluminescence (ECL) nanoemitters have attracted intense attention in ECL biosensing and imaging. However, most of the available Pdots have a high ECL excitation potential in the aqueous phase (>1.0 V vs Ag/AgCl), which causes poor selectivity in actual sample detection. Therefore, it is particularly important to construct a simple and universal strategy to lower the trigger potential of Pdots. This work has realized the ECL emission of Pdots at low-trigger-potential based on the electrochemiluminescence resonance energy transfer (ERET) strategy. By covalently coupling the Pdots with a luminol analogue, N-(4-aminobutyl)-N-ethylisoluminol (ABEI), the ABEI-Pdots showed an anodic ECL emission with a low onset potential of +0.34 V and a peak potential at +0.45 V (vs Ag/AgCl), which was the lowest trigger potential reported so far. We further explored this low-triggering-potential ECL for imaging detection of glucose in buffer and serum. By imaging the ABEI-Pdots-modified screen-printed electrodes (SPCE) at +0.45 V for 16 s, the ECL imaging method could quantify the glucose concentration in buffer from 10 to 200 μM with detection limits of 3.3 μM, while exhibiting excellent selectivity. When applied to real serum, the results of our method were highly consistent with a commercial blood glucose meter, with the relative errors ranging from 3.2 to 13%. This work provided a universal strategy for constructing low potential Pdots and demonstrated its application potential in complex biological sample analysis.
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Affiliation(s)
- Zhuanzhuan Wang
- Research Center of Analytical Instrumentation, Key Laboratory of Synthetic and Natural Functional Molecule of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an, 710127, People's Republic of China
| | - Haijing Guo
- Research Center of Analytical Instrumentation, Key Laboratory of Synthetic and Natural Functional Molecule of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an, 710127, People's Republic of China
| | - Zewei Luo
- Research Center of Analytical Instrumentation, Key Laboratory of Synthetic and Natural Functional Molecule of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an, 710127, People's Republic of China
| | - Yixiang Duan
- Research Center of Analytical Instrumentation, Key Laboratory of Synthetic and Natural Functional Molecule of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an, 710127, People's Republic of China
| | - Yaqiang Feng
- Research Center of Analytical Instrumentation, Key Laboratory of Synthetic and Natural Functional Molecule of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an, 710127, People's Republic of China
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5
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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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6
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Wang J, Haghighatbin MA, Shen W, Mi L, Cui H. Metal Ion-Mediated Potential-Resolved Ratiometric Electrochemiluminescence Bioassay for Efficient Determination of miR-133a in Early Diagnosis of Acute Myocardial Infarction. Anal Chem 2020; 92:7062-7070. [DOI: 10.1021/acs.analchem.0c00377] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Jue Wang
- CAS Key Laboratory of Soft Matter Chemistry, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Mohammad A. Haghighatbin
- CAS Key Laboratory of Soft Matter Chemistry, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Wen Shen
- CAS Key Laboratory of Soft Matter Chemistry, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Lan Mi
- CAS Key Laboratory of Soft Matter Chemistry, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Hua Cui
- CAS Key Laboratory of Soft Matter Chemistry, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
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7
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Ding H, Guo W, Su B. Electrochemiluminescence Single‐Cell Analysis: Intensity‐ and Imaging‐Based Methods. Chempluschem 2020; 85:725-733. [DOI: 10.1002/cplu.202000145] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 03/25/2020] [Indexed: 12/21/2022]
Affiliation(s)
- Hao Ding
- Institute of Analytical ChemistryDepartment of ChemistryZhejiang University Hangzhou 310058 P. R. China
| | - Weiliang Guo
- Institute of Analytical ChemistryDepartment of ChemistryZhejiang University Hangzhou 310058 P. R. China
| | - Bin Su
- Institute of Analytical ChemistryDepartment of ChemistryZhejiang University Hangzhou 310058 P. R. China
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8
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Zeolitic imidazolate frameworks for use in electrochemical and optical chemical sensing and biosensing: a review. Mikrochim Acta 2020; 187:234. [PMID: 32180011 DOI: 10.1007/s00604-020-4173-3] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Accepted: 02/18/2020] [Indexed: 12/27/2022]
Abstract
This review (with 145 refs.) summarizes the progress that has been made in the use of zeolitic imidazolate frameworks in chemical sensing and biosensing. Zeolitic imidazolate frameworks (ZIFs) are a type of porous material with zeolite topological structure that combine the advantages of zeolite and traditional metal-organic frameworks. Owing to the structural flexibility of ZIFs, their pore sizes and surface functionalization can be reasonably designed. Following an introduction into the field of metal-organic frameworks and the zeolitic imidazolate framework (ZIF) subclass, a first large section covers the various kinds and properties of ZIFs. The next large section covers electrochemical sensors and assays (with subsections on methods for gases, electrochemiluminescence, electrochemical biomolecules). This is followed by main sections on ZIF-based colorimetric and luminescent sensors, with subsections on sensors for metal ions and anions, for gases, and for organic biomolecules. The last section covers SERS-based assays. Several tables are presented that give an overview on the wealth of methods and materials. A concluding section summarizes the current status, addresses current challenges, and gives an outlook on potential future trends. Graphical abstract In recent years, ZIFs and their composites have been widely used as probes in chemical sensing, and these probes have shown great advantages over other materials. This review describes the current progress on ZIFs toward electrochemical, luminescence, colorimetric, and SERS-based sensing applications, highlighting the different strategies for designing ZIFs and their composites and potential challenges in this field.
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9
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N'Diaye J, Hyun Chang J, Lian K. The Capacitive Behavior of Polyluminol on Carbon Nanotubes Electrodes. ChemElectroChem 2019. [DOI: 10.1002/celc.201901473] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jeanne N'Diaye
- Materials Science and EngineeringUniversity of Toronto 184 College St Toronto, Ontario M5S 3E4 Canada
| | - Jin Hyun Chang
- Department of Energy Conversion and StorageTechnical University of Denmark DK-2800 Kgs. Lyngby Denmark
| | - Keryn Lian
- Materials Science and EngineeringUniversity of Toronto 184 College St Toronto, Ontario M5S 3E4 Canada
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10
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N'Diaye J, Lian K. Investigation of the chemical structure and electrochemical activity of a chemically polymerized luminol. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2019.03.024] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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11
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Wang S, Zhao Y, Wang M, Li H, Saqib M, Ge C, Zhang X, Jin Y. Enhancing Luminol Electrochemiluminescence by Combined Use of Cobalt-Based Metal Organic Frameworks and Silver Nanoparticles and Its Application in Ultrasensitive Detection of Cardiac Troponin I. Anal Chem 2019; 91:3048-3054. [PMID: 30680992 DOI: 10.1021/acs.analchem.8b05443] [Citation(s) in RCA: 91] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Electrochemiluminescence (ECL) has emerged as one of the most important methods for in vitro diagnosis and detection, but it is still limited in sensitivity for ultrasensitive biodetections. Fast and ultrasensitive detection of biomolecules is critical, especially for the clinical detection of cardiac troponin I (cTnI) for cardiac infarction diagnosis. In this study, an effective tactic was developed to enhance ECL efficiency of the luminol system, by combined use of Co2+-based metal organic frameworks (MOF), zeolitic imidazolate frameworks (ZIF-67), and luminol-capped Ag nanoparticles (luminol-AgNPs). The integration leads to a pronounced ∼115-fold enhancement in luminol ECL. On the basis of this fascinating sensing platform, a robust label-free ECL immunosensor was constructed for ultrasensitive detection of cTnI, the main marker of myocardial infarction, with good stability and a detection limit as low as 0.58 fg mL-1 (S/N = 3).
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Affiliation(s)
- Shanshan Wang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry , Chinese Academy of Sciences , Changchun 130022 , People's Republic of China.,College of Chemistry , Liaoning University , Shenyang 110036 , People's Republic of China
| | - Yangyang Zhao
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry , Chinese Academy of Sciences , Changchun 130022 , People's Republic of China
| | - Minmin Wang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry , Chinese Academy of Sciences , Changchun 130022 , People's Republic of China.,University of Chinese Academy of Sciences , Beijing 100049 , People's Republic of China
| | - Haijuan Li
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry , Chinese Academy of Sciences , Changchun 130022 , People's Republic of China
| | - Muhammad Saqib
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry , Chinese Academy of Sciences , Changchun 130022 , People's Republic of China
| | - Chunhua Ge
- College of Chemistry , Liaoning University , Shenyang 110036 , People's Republic of China
| | - Xiangdong Zhang
- College of Chemistry , Liaoning University , Shenyang 110036 , People's Republic of China
| | - Yongdong Jin
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry , Chinese Academy of Sciences , Changchun 130022 , People's Republic of China.,University of Chinese Academy of Sciences , Beijing 100049 , People's Republic of China
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12
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Zhang Z, Zhu N, Zou Y, Zhao Z, Wu X, Liang G, Han Z, Meng H. A novel and sensitive chemiluminescence immunoassay based on AuNCs@pepsin@luminol for simultaneous detection of tetrabromobisphenol A bis(2-hydroxyethyl) ether and tetrabromobisphenol A mono(hydroxyethyl) ether. Anal Chim Acta 2018; 1035:168-174. [DOI: 10.1016/j.aca.2018.06.039] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Revised: 06/12/2018] [Accepted: 06/13/2018] [Indexed: 02/06/2023]
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13
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Jadoun S, Verma A, Riaz U. Luminol modified polycarbazole and poly(o-anisidine): Theoretical insights compared with experimental data. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 204:64-72. [PMID: 29902772 DOI: 10.1016/j.saa.2018.06.025] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Revised: 06/02/2018] [Accepted: 06/07/2018] [Indexed: 06/08/2023]
Abstract
With the aim to explore the effect of luminol as a multifunctional dopant for conjugated polymers, the present study reports the ultrasound-assisted doping of polycarbazole (PCz) and poly(o-anisidine) (PAnis) with luminol in basic, acidic and neutral media. The synthesized homopolymers and luminol doped polymers were characterized using FT-IR, UV-visible and XRD studies while the photo-physical properties were investigated via fluorescence spectroscopy. Density functional theory (DFT) calculations were performed to get insights into the structural, optical, and electronic properties of homopolymers of polycarbazole (PCz) and poly(o-anisidine) (PAnis). Vibrational bands B3LYP/6-311G (d,p) level, UV-vis spectral bands and electronic properties such as ionization potentials (IP), electron affinities (EA) and HOMO-LUMO band gap energies of the homopolymers and doped polymers were calculated and compared. Results revealed that luminol doped polymers showed different photo-physical characteristics in acidic, basic and neutral media which could be tuned to obtain near infrared (NIR) emitting polymers.
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Affiliation(s)
- Sapana Jadoun
- Materials Research Laboratory, Department of Chemistry, Jamia Millia Islamia, New Delhi 110025, India
| | - Anurakshee Verma
- Materials Research Laboratory, Department of Chemistry, Jamia Millia Islamia, New Delhi 110025, India
| | - Ufana Riaz
- Materials Research Laboratory, Department of Chemistry, Jamia Millia Islamia, New Delhi 110025, India.
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14
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Li G, Qiu S, Zhang Y, Li M, Guan M. Label-Free Electrochemiluminescent Determination of DNA Using Luminol and Hemin Functionalized Nanoparticles. ANAL LETT 2018. [DOI: 10.1080/00032719.2018.1520239] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Guixin Li
- Engineering Research Center of Electrochemical Technology and Application, School of Chemistry and Chemical Engineering, Xinjiang Normal University, Urumqi, Xinjiang, China
| | - Shuyin Qiu
- Engineering Research Center of Electrochemical Technology and Application, School of Chemistry and Chemical Engineering, Xinjiang Normal University, Urumqi, Xinjiang, China
| | - Yanhui Zhang
- Engineering Research Center of Electrochemical Technology and Application, School of Chemistry and Chemical Engineering, Xinjiang Normal University, Urumqi, Xinjiang, China
| | - Mengfei Li
- Engineering Research Center of Electrochemical Technology and Application, School of Chemistry and Chemical Engineering, Xinjiang Normal University, Urumqi, Xinjiang, China
| | - Ming Guan
- Engineering Research Center of Electrochemical Technology and Application, School of Chemistry and Chemical Engineering, Xinjiang Normal University, Urumqi, Xinjiang, China
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15
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Zhu Q, Huang J, Yan M, Ye J, Wang D, Lu Q, Yang X. N-(Aminobutyl)-N-(ethylisoluminol)-functionalized gold nanoparticles on cobalt disulfide nanowire hybrids for the non-enzymatic chemiluminescence detection of H 2O 2. NANOSCALE 2018; 10:14847-14851. [PMID: 30059104 DOI: 10.1039/c8nr03990a] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
N-(Aminobutyl)-N-(ethylisoluminol) (ABEI)-functionalized gold nanoparticles (AuNPs) on cobalt disulfide nanowires (ABEI/AuNPs/CoS2 NWs) are rapidly synthesized through a microwave-assisted reduction of chloroauric acid (HAuCl4) on CoS2 NWs with ABEI. The obtained nanohybrids with enhanced chemiluminescence are exploited for the non-enzymatic detection of H2O2.
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Affiliation(s)
- Qiuju Zhu
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
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16
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Highly chemiluminescent magnetic mesoporous carbon composites Fe3O4@void@C with yolk-shell structure. Sci China Chem 2018. [DOI: 10.1007/s11426-018-9329-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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17
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Chen Y, Fu J, Cui C, Jiang D, Chen Z, Chen HY, Zhu JJ. In Situ Visualization of Electrocatalytic Reaction Activity at Quantum Dots for Water Oxidation. Anal Chem 2018; 90:8635-8641. [PMID: 29886727 DOI: 10.1021/acs.analchem.8b01935] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Exploring electrocatalytic reactions on the nanomaterial surface can give crucial information for the development of robust catalysts. Here, electrocatalytic reaction activity at single quantum dots (QDs) loaded silica microparticle involved in water oxidation is visualized using electrochemiluminescence (ECL) microscopy. Under positive potential, the active redox centers at QDs induce the generation of hydroperoxide surface intermediates as coreactants to remarkably enhance ECL emission from luminol derivative molecules for imaging. For the first time, in situ visualization of the catalytic activity of water oxidation with QDs catalyst was achieved, supported by a linear relation between ECL intensity and turn over frequency. A very slight diffusion trend attributed to only the luminol species proved in situ capture of hydroperoxide surface intermediates at catalytic active sites of QDs. This work provides tremendous potential in online imaging of electrocatalytic reactions and visual evaluation of catalyst performance.
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Affiliation(s)
- Ying Chen
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering , Nanjing University , Nanjing , Jiangsu 210093 , China
| | - Jiaju Fu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering , Nanjing University , Nanjing , Jiangsu 210093 , China
| | - Chen Cui
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering , Nanjing University , Nanjing , Jiangsu 210093 , China
| | - Dechen Jiang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering , Nanjing University , Nanjing , Jiangsu 210093 , China
| | - Zixuan Chen
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering , Nanjing University , Nanjing , Jiangsu 210093 , China
| | - Hong-Yuan Chen
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering , Nanjing University , Nanjing , Jiangsu 210093 , China
| | - Jun-Jie Zhu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering , Nanjing University , Nanjing , Jiangsu 210093 , China
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18
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Han Z, Shu J, Jiang Q, Cui H. Coreactant-Free and Label-Free Eletrochemiluminescence Immunosensor for Copeptin Based on Luminescent Immuno-Gold Nanoassemblies. Anal Chem 2018; 90:6064-6070. [DOI: 10.1021/acs.analchem.7b05406] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Zhili Han
- CAS Key Laboratory of Soft Matter Chemistry, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Jiangnan Shu
- CAS Key Laboratory of Soft Matter Chemistry, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Qiaoshi Jiang
- CAS Key Laboratory of Soft Matter Chemistry, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Hua Cui
- CAS Key Laboratory of Soft Matter Chemistry, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
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19
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Kim JM, Jeong S, Song JK, Kim J. Near-infrared electrochemiluminescence from orange fluorescent Au nanoclusters in water. Chem Commun (Camb) 2018; 54:2838-2841. [DOI: 10.1039/c7cc09394b] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
We report the unusual generation of near-IR electrochemiluminescence from orange fluorescent Au nanoclusters soluble in water.
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Affiliation(s)
- Jun Myung Kim
- Department of Chemistry
- Research Institute for Basic Sciences
- KHU-KIST Department of Converging Science and Technology
- Kyung Hee University
- Seoul 02447
| | - Seonghyun Jeong
- Department of Chemistry
- Research Institute for Basic Sciences
- KHU-KIST Department of Converging Science and Technology
- Kyung Hee University
- Seoul 02447
| | - Jae Kyu Song
- Department of Chemistry
- Research Institute for Basic Sciences
- KHU-KIST Department of Converging Science and Technology
- Kyung Hee University
- Seoul 02447
| | - Joohoon Kim
- Department of Chemistry
- Research Institute for Basic Sciences
- KHU-KIST Department of Converging Science and Technology
- Kyung Hee University
- Seoul 02447
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20
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Zhao X, Zhou W, Lu C. Fabrication of Noncoplanar Molecule Aggregates with Inherent Porous Structures for Electrochemiluminescence Signal Amplification. Anal Chem 2017; 89:10078-10084. [DOI: 10.1021/acs.analchem.7b02921] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Xiaocen Zhao
- State
Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Wenjuan Zhou
- Department
of Chemistry, Capital Normal University, Beijing 100048, China
| | - Chao Lu
- State
Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
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21
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Zhai Q, Li J, Wang E. Recent Advances Based on Nanomaterials as Electrochemiluminescence Probes for the Fabrication of Sensors. ChemElectroChem 2017. [DOI: 10.1002/celc.201600898] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Qingfeng Zhai
- State Key Laboratory of Electroanalytical Chemistry; Changchun Institute of Applied Chemistry; Chinese Academy of Sciences; Changchun, Jilin 130022 P.R. China
- University of Chinese Academy of Sciences; Beijing 100039 China
| | - Jing Li
- State Key Laboratory of Electroanalytical Chemistry; Changchun Institute of Applied Chemistry; Chinese Academy of Sciences; Changchun, Jilin 130022 P.R. China
- University of Chinese Academy of Sciences; Beijing 100039 China
| | - Erkang Wang
- State Key Laboratory of Electroanalytical Chemistry; Changchun Institute of Applied Chemistry; Chinese Academy of Sciences; Changchun, Jilin 130022 P.R. China
- University of Chinese Academy of Sciences; Beijing 100039 China
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22
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Jadoun S, Sharma V, Ashraf SM, Riaz U. Sonolytic doping of poly(1-naphthylamine) with luminol: influence on spectral, morphological and fluorescent characteristics. Colloid Polym Sci 2017. [DOI: 10.1007/s00396-017-4055-3] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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23
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Hao L, Gu H, Duan N, Wu S, Ma X, Xia Y, Tao Z, Wang Z. An enhanced chemiluminescence resonance energy transfer aptasensor based on rolling circle amplification and WS 2 nanosheet for Staphylococcus aureus detection. Anal Chim Acta 2017; 959:83-90. [PMID: 28159108 DOI: 10.1016/j.aca.2016.12.045] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Revised: 12/28/2016] [Accepted: 12/30/2016] [Indexed: 01/06/2023]
Abstract
A chemiluminescence resonance energy transfer aptasensor was fabricated for the detection of Staphylococcus aureus (S. aureus) with Co2+ enhanced N-(aminobutyl)-N-(ethylisoluminol) (ABEI) functional flowerlike gold nanoparticles (Co2+/ABEI-AuNFs) as donor and WS2 nanosheet as acceptor. In the presence of S. aureus, rolling circle amplification (RCA) can be started. Partially complementary sequence of RCA product functional ABEI-AuNFs (cDNA-ABEI-AuNFs) were then annealed to multiple sites of the RCA product to form duplex complex. This complex is less adsorbed onto the WS2 nanosheet, thus attenuating the quenching of ABEI-AuNFs chemiluminescence by WS2 nanosheet. In the absence of target S. aureus (and hence the absence of RCA and duplex formation), the free cDNA-ABEI-AuNFs is completely adsorbed onto the WS2 nanosheet and chemiluminescence quenching ensues. Under optimal conditions, the logarithmic correlation between the concentration of S. aureus and the CL signal was found to be linear within the range of 50 cfu/mL to 1.5 × 105 cfu/mL (R2 = 0.9913). The limits of detection of the developed method were found to be 15 cfu/mL for S. aureus. The selectivity and the capability of the biosensor in meat samples were also studied. Therefore, this simple and easy operation method can be used to detect S. aureus with high sensitivity and specificity.
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Affiliation(s)
- Liling Hao
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Huajie Gu
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Nuo Duan
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Shijia Wu
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Xiaoyuan Ma
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Yu Xia
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Zui Tao
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Zhouping Wang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China; School of Food Science and Technology, Dalian Polytechnic University, National Engineering Research Center of Seafood, Dalian 116034, China.
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24
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Jiang X, Wang Z, Wang H, Zhuo Y, Yuan R, Chai Y. A novel metal–organic framework loaded with abundant N-(aminobutyl)-N-(ethylisoluminol) as a high-efficiency electrochemiluminescence indicator for sensitive detection of mucin1 on cancer cells. Chem Commun (Camb) 2017; 53:9705-9708. [DOI: 10.1039/c7cc05495e] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Abundant luminophore N-(aminobutyl)-N-(ethylisoluminol) functionalized metal–organic framework was synthesized as a novel and high-efficiency electrochemiluminescence indicator.
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Affiliation(s)
- Xinya Jiang
- Key Laboratory of Luminescence and Real-Time Analytical Chemistry
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
| | - Zili Wang
- Key Laboratory of Luminescence and Real-Time Analytical Chemistry
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
| | - Haijun Wang
- Key Laboratory of Luminescence and Real-Time Analytical Chemistry
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
| | - Ying Zhuo
- Key Laboratory of Luminescence and Real-Time Analytical Chemistry
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
| | - Ruo Yuan
- Key Laboratory of Luminescence and Real-Time Analytical Chemistry
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
| | - Yaqin Chai
- Key Laboratory of Luminescence and Real-Time Analytical Chemistry
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
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25
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An ultrasensitive electrochemiluminescence immunosensor for NT-proBNP based on self-catalyzed luminescence emitter coupled with PdCu@carbon nanohorn hybrid. Biosens Bioelectron 2017; 87:779-785. [DOI: 10.1016/j.bios.2016.08.109] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Revised: 08/23/2016] [Accepted: 08/30/2016] [Indexed: 11/21/2022]
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26
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Hao L, Gu H, Duan N, Wu S, Ma X, Xia Y, Wang H, Wang Z. A chemiluminescent aptasensor based on rolling circle amplification and Co 2+/N-(aminobutyl)-N-(ethylisoluminol) functional flowerlike gold nanoparticles for Salmonella typhimurium detection. Talanta 2016; 164:275-282. [PMID: 28107930 DOI: 10.1016/j.talanta.2016.11.053] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2016] [Revised: 11/16/2016] [Accepted: 11/22/2016] [Indexed: 12/22/2022]
Abstract
A sensitive steady-state chemiluminescent aptasensor based on rolling circle amplification (RCA) was fabricated for the detection of Salmonella typhimurium. The sensor utilized aptamer modified Fe3O4 magnetic nanoparticles (MNPs) as capture probes, aptamer as recognition molecules, and Co2+ enhanced N‑(aminobutyl)-N-(ethylisoluminol) (ABEI) functional flowerlike gold nanoparticles (AuNFs) and complementary strand (cDNA) complex (Co2+/ABEI-AuNFs-cDNA) as signal probes. And P-Iodophenol (PIP) was also added to form a typical ABEI- AuNFs-PIP-H2O2 steady-state CL system. By virtue of Fe3O4 MNPs based solid-phase RCA strategy, S. typhimurium can be first captured by the aptamer immobilized on the surface of Fe3O4 MNPs then complex with RCA products to form a sandwich complex. Co2+/ABEI-AuNFs-cDNA signal probes were then assembled on the RCA products to produce and enhance CL signals. Under optimal conditions, the logarithmic correlation between the concentration of S. typhimurium and the CL signal was found to be linear within the range of 32cfumL-1 to 3.2×106cfumL-1 (R2 =0.9921). The limits of detection of the developed method were found to be 10cfumL-1 for S. typhimurium. The method was also used to detect S. typhimurium in real pork samples. The results were compared with those obtained from the plate-counting methods and showed good consistency. Therefore, this detection aptasnesor can be a good candidate for sensitive and selective detection of S. typhimurium with simple and effective operations.
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Affiliation(s)
- Liling Hao
- State Key Laboratory of Food Science and Technology, Synergetic Innovation Center of Food Safety and Nutrition, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Huajie Gu
- State Key Laboratory of Food Science and Technology, Synergetic Innovation Center of Food Safety and Nutrition, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Nuo Duan
- State Key Laboratory of Food Science and Technology, Synergetic Innovation Center of Food Safety and Nutrition, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Shijia Wu
- State Key Laboratory of Food Science and Technology, Synergetic Innovation Center of Food Safety and Nutrition, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Xiaoyuan Ma
- State Key Laboratory of Food Science and Technology, Synergetic Innovation Center of Food Safety and Nutrition, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Yu Xia
- State Key Laboratory of Food Science and Technology, Synergetic Innovation Center of Food Safety and Nutrition, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Haitao Wang
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Zhouping Wang
- State Key Laboratory of Food Science and Technology, Synergetic Innovation Center of Food Safety and Nutrition, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China; School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China.
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27
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Li SK, Chen AY, Chai YQ, Yuan R, Zhuo Y. Electrochemiluminescence Aptasensor Based on Cascading Amplification of Nicking Endonuclease-Assisted Target Recycling and Rolling Circle Amplifications for Mucin 1 Detection. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.07.074] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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28
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Jiang X, Wang H, Wang H, Yuan R, Chai Y. Signal-Switchable Electrochemiluminescence System Coupled with Target Recycling Amplification Strategy for Sensitive Mercury Ion and Mucin 1 Assay. Anal Chem 2016; 88:9243-50. [PMID: 27529728 DOI: 10.1021/acs.analchem.6b02501] [Citation(s) in RCA: 82] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
In the present work, we first found that mercury ion (Hg(2+)) has an efficient quenching effect on the electrochemiluminescence (ECL) of N-(aminobutyl)-N-(ethylisoluminol) (ABEI). Since we were inspired by this discovery, an aptamer-based ECL sensor was fabricated based on a Hg(2+) triggered signal switch coupled with an exonuclease I (Exo I)-stimulated target recycling amplification strategy for ultrasensitive determination of Hg(2+) and mucin 1 (MUC1). Concretely, the ECL intensity of ABEI-functionalized silver nanoparticles decorated graphene oxide nanocomposite (GO-AgNPs-ABEI) was initially enhanced by ferrocene labeled ssDNA (Fc-S1) (first signal switch "on" state) in the existence of H2O2. With the aid of aptamer, assistant ssDNA (S2) and full thymine (T) bases ssDNA (S3) modified Au nanoparticles (AuNPs-S2-S3) were immobilized on the sensing surface through the hybridization reaction. Then, via the strong and stable T-Hg(2+)-T interaction, an abundance of Hg(2+) was successfully captured on the AuNPs-S2-S3 and effectively inhibited the ECL reaction of ABEI (signal switch "off" state). Finally, the signal switch "on" state was executed by utilizing MUC1 as an aptamer-specific target to bind aptamer, leading to the large decrease of the captured Hg(2+). To further improve the sensitivity of the aptasensor, Exo I was implemented to digest the binded aptamer, which resulted in the release of MUC1 for achieving target recycling with strong detectable ECL signal even in a low level of MUC1. By integrating the quenching effect of Hg(2+) to reduce the background signal and target recycling for signal amplification, this proposed ECL aptasensor was successfully used to detect Hg(2+) and MUC1 sensitively with a wide linear response.
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Affiliation(s)
- Xinya Jiang
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University , Chongqing 400715, PR of China
| | - Huijun Wang
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University , Chongqing 400715, PR of China
| | - Haijun Wang
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University , Chongqing 400715, PR of China
| | - Ruo Yuan
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University , Chongqing 400715, PR of China
| | - Yaqin Chai
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University , Chongqing 400715, PR of China
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29
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Wang T, Wang D, Padelford JW, Jiang J, Wang G. Near-Infrared Electrogenerated Chemiluminescence from Aqueous Soluble Lipoic Acid Au Nanoclusters. J Am Chem Soc 2016; 138:6380-3. [DOI: 10.1021/jacs.6b03037] [Citation(s) in RCA: 149] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Tanyu Wang
- Department of Chemistry, Georgia State University, Atlanta, Georgia 30302, United States
| | - Dengchao Wang
- Department of Chemistry, Georgia State University, Atlanta, Georgia 30302, United States
| | - Jonathan W. Padelford
- Department of Chemistry, Georgia State University, Atlanta, Georgia 30302, United States
| | - Jie Jiang
- Department of Chemistry, Georgia State University, Atlanta, Georgia 30302, United States
| | - Gangli Wang
- Department of Chemistry, Georgia State University, Atlanta, Georgia 30302, United States
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30
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Ye C, Wang MQ, Zhong X, Chen S, Chai Y, Yuan R. Highly sensitive electrochemiluminescenc assay of acetylcholinesterase activity based on dual biomarkers using Pd-Au nanowires as immobilization platform. Biosens Bioelectron 2015; 79:34-40. [PMID: 26686921 DOI: 10.1016/j.bios.2015.11.096] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Revised: 11/27/2015] [Accepted: 11/30/2015] [Indexed: 10/22/2022]
Abstract
One-dimensional Pd-Au nanowires (Pd-Au NWs) were prepared and applied to fabricate an electrochemiluminescence (ECL) biosensor for the detection of acetylcholinesterase (AChE) activity. Compared with single-component of Pd or Au, the bimetallic nanocomposite of Pd-Au NWs offers a larger surface area for the immobilization of enzyme, and displays superior electrocatalytic activity and efficient electron transport capacity. In the presence of AChE and choline oxidase (ChOx), acetylcholine (ATCl) is hydrolyzed by AChE to generate thiocholine, then thiocholine is catalyzed by ChOx to produce H2O2 in situ, which serves as the coreactant to effectively enhance the ECL intensity in luminol-ECL system. The detection principle is based on the inhibited AChE and reactivated AChE as dual biomarkers, in which AChE was inhibited by organophosphorus (OP) agents, and then reactivated by obidoxime. Such dual biomarkers method can achieve credible evaluation for AChE activity via providing AChE activity before and after reactivation. The liner range for AChE activity detection was from 0.025 U L(-1) to 25 KU L(-1) with a low detection limit down to 0.0083 U L(-1).
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Affiliation(s)
- Cui Ye
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry, Ministry of Education (Southwest University), College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - Min-Qiang Wang
- Institute for Clean Energy & Advanced Materials, Faculty of Materials and Energy, Southwest University, Chongqing 400715, PR China
| | - Xia Zhong
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry, Ministry of Education (Southwest University), College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China.
| | - Shihong Chen
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry, Ministry of Education (Southwest University), College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - Yaqin Chai
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry, Ministry of Education (Southwest University), College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - Ruo Yuan
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry, Ministry of Education (Southwest University), College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China.
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31
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de Poulpiquet A, Diez-Buitrago B, Milutinovic M, Goudeau B, Bouffier L, Arbault S, Kuhn A, Sojic N. Dual-Color Electrogenerated Chemiluminescence from Dispersions of Conductive Microbeads Addressed by Bipolar Electrochemistry. ChemElectroChem 2015. [DOI: 10.1002/celc.201500402] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Anne de Poulpiquet
- Université Bordeaux; CNRS, ISM UMR5255; NSYSA group, ENSCBP; 33607 Pessac France
| | | | - Milena Milutinovic
- Université Bordeaux; CNRS, ISM UMR5255; NSYSA group, ENSCBP; 33607 Pessac France
| | - Bertrand Goudeau
- Université Bordeaux; CNRS, ISM UMR5255; NSYSA group, ENSCBP; 33607 Pessac France
| | - Laurent Bouffier
- Université Bordeaux; CNRS, ISM UMR5255; NSYSA group, ENSCBP; 33607 Pessac France
| | - Stéphane Arbault
- Université Bordeaux; CNRS, ISM UMR5255; NSYSA group, ENSCBP; 33607 Pessac France
| | - Alexander Kuhn
- Université Bordeaux; CNRS, ISM UMR5255; NSYSA group, ENSCBP; 33607 Pessac France
| | - Neso Sojic
- Université Bordeaux; CNRS, ISM UMR5255; NSYSA group, ENSCBP; 33607 Pessac France
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