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Gutiérrez-Gálvez L, Sulleiro MV, Gutiérrez-Sánchez C, García-Nieto D, Luna M, Pérez EM, García-Mendiola T, Lorenzo E. MoS 2-Carbon Nanodots as a New Electrochemiluminescence Platform for Breast Cancer Biomarker Detection. BIOSENSORS 2023; 13:bios13030348. [PMID: 36979560 PMCID: PMC10046281 DOI: 10.3390/bios13030348] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 02/23/2023] [Accepted: 03/02/2023] [Indexed: 05/27/2023]
Abstract
In this work, we present the combination of two different types of nanomaterials, 2D molybdenum disulfide nanosheets (MoS2-NS) and zero-dimensional carbon nanodots (CDs), for the development of a new electrochemiluminescence (ECL) platform for the early detection and quantification of the biomarker human epidermal growth factor receptor 2 (HER2), whose overexpression is associated with breast cancer. MoS2-NS are used as an immobilization platform for the thiolated aptamer, which can recognize the HER2 epitope peptide with high affinity, and CDs act as coreactants of the anodic oxidation of the luminophore [Ru(bpy)3]2+. The HER2 biomarker is detected by changes in the ECL signal of the [Ru(bpy)3]2+/CD system, with a low detection limit of 1.84 fg/mL and a wide linear range. The proposed method has been successfully applied to detect the HER2 biomarker in human serum samples.
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Affiliation(s)
- Laura Gutiérrez-Gálvez
- Departamento de Química Analítica y Análisis Instrumental, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | | | - Cristina Gutiérrez-Sánchez
- Departamento de Química Analítica y Análisis Instrumental, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Daniel García-Nieto
- Instituto de Micro y Nanotecnología IMN-CNM, CSIC (CEI UAM+CSIC), Isaac Newton 8, Tres Cantos, 28760 Madrid, Spain
| | - Mónica Luna
- Instituto de Micro y Nanotecnología IMN-CNM, CSIC (CEI UAM+CSIC), Isaac Newton 8, Tres Cantos, 28760 Madrid, Spain
| | - Emilio M. Pérez
- IMDEA-Nanociencia, Ciudad Universitaria de Cantoblanco, 28049 Madrid, Spain
| | - Tania García-Mendiola
- Departamento de Química Analítica y Análisis Instrumental, Universidad Autónoma de Madrid, 28049 Madrid, Spain
- Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Encarnación Lorenzo
- Departamento de Química Analítica y Análisis Instrumental, Universidad Autónoma de Madrid, 28049 Madrid, Spain
- IMDEA-Nanociencia, Ciudad Universitaria de Cantoblanco, 28049 Madrid, Spain
- Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, 28049 Madrid, Spain
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Xu T, Xu P, Xu G, Liu M, Zhu Y. A Signal Amplification Strategy Using ATP as a Co‐Reaction Accelerator for the Electrochemiluminescence of Ru(bpy)
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/HEPES System and Detection of Iodide Anions**. ChemistrySelect 2023. [DOI: 10.1002/slct.202204363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Tingting Xu
- Anhui Key Laboratory of Chemo/Biosensing College of Chemistry and Materials Science Anhui Normal University Wuhu 241000 China
| | - Panpan Xu
- Anhui Key Laboratory of Chemo/Biosensing College of Chemistry and Materials Science Anhui Normal University Wuhu 241000 China
| | - Guilin Xu
- Anhui Key Laboratory of Chemo/Biosensing College of Chemistry and Materials Science Anhui Normal University Wuhu 241000 China
| | - Mengyao Liu
- Anhui Key Laboratory of Chemo/Biosensing College of Chemistry and Materials Science Anhui Normal University Wuhu 241000 China
| | - Yinggui Zhu
- Anhui Key Laboratory of Chemo/Biosensing College of Chemistry and Materials Science Anhui Normal University Wuhu 241000 China
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3
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Single-electrode electrochemical system based on tris(1,10-phenanthroline)ruthenium modified carbon nanotube/graphene film electrode for visual electrochemiluminescence analysis. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.140431] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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4
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Barkae TH, Zeid AM, Xu G. Highly Sensitive Detection of the Insecticide Azamethiphos by Tris(2,2'-bipyridine)ruthenium(II) Electrogenerated Chemiluminescence. SENSORS (BASEL, SWITZERLAND) 2022; 22:2519. [PMID: 35408132 PMCID: PMC9002990 DOI: 10.3390/s22072519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Revised: 03/18/2022] [Accepted: 03/21/2022] [Indexed: 06/14/2023]
Abstract
Azamethiphos (AZA) is an insecticide and neurotoxic agent that causes the inhibition of acetylcholinesterase (AChE). AChE is a vital enzyme for neurotransmission because it metabolizes acetylcholine neurotransmitter at the synaptic cleft and terminates synaptic transmission. It is worth mentioning that organophosphates and carbamates inhibit AChE. These AChE inhibitors bind to the active site of the enzyme and inactivate it, leading to paralysis and death. Herein, for the first time, we develop a sensitive, low-cost, and rapid electrogenerated chemiluminescence (ECL) system for the detection of AZA. The designed ECL sensor was applied for the highly sensitive detection of AZA with a wide dynamic range (from 0.1 μM to 1000 μM) and low detection limit of 0.07 μM (S/N = 3). The practical utility of the sensor demonstrates high recoveries (96-102%) in real samples of lake water and wastewater.
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Affiliation(s)
- Tesfaye Hailemariam Barkae
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China; (T.H.B.); (A.M.Z.)
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei 230026, China
- Department of Chemistry, College of Natural & Computational Science, Wolkite University, Wolkite P.O. Box 07, Ethiopia
| | - Abdallah M. Zeid
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China; (T.H.B.); (A.M.Z.)
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei 230026, China
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
| | - Guobao Xu
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China; (T.H.B.); (A.M.Z.)
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei 230026, China
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5
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D'Alton L, Carrara S, Barbante GJ, Hoxley D, Hayne DJ, Francis PS, Hogan CF. A simple, low-cost instrument for electrochemiluminescence immunoassays based on a Raspberry Pi and screen-printed electrodes. Bioelectrochemistry 2022; 146:108107. [DOI: 10.1016/j.bioelechem.2022.108107] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 02/28/2022] [Accepted: 03/21/2022] [Indexed: 12/19/2022]
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6
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A New Anodic Electrochemiluminescence of Tris(2,2′- bipyridine)ruthenium(II) with 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide as a Coreactant for Determination of Hydrogen peroxide. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107256] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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7
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Kitte SA, Bushira FA, Li H, Jin Y. Electrochemiluminescence of Ru(bpy) 32+/thioacetamide and its application for the sensitive determination of hepatotoxic thioacetamide. Analyst 2021; 146:5198-5203. [PMID: 34308456 DOI: 10.1039/d1an00862e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Thioacetamide (TAA) is a well-known hepatotoxic substance, so it is important to determine its presence and content in food and environmental samples. Herein, we report a highly sensitive determination method for TAA based on the electrochemiluminescence (ECL) of tris(2,2'-bipyridyl)ruthenium(ii) (Ru(bpy)32+) for the first time by using TAA as a new coreactant for Ru(bpy)32+ ECL via an anodic route. The developed Ru(bpy)32+-TAA ECL system allows the determination of TAA with a good dynamic linear range and low limit of detection (LOD) of 0.1 μM to 1000 μM and 0.035 μM (3σ/m), respectively. In addition, the established ECL system can be applied to detect TAA in fruit juice and waste water samples with outstanding recoveries.
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Affiliation(s)
- Shimeles Addisu Kitte
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China. and Department of Chemistry, College of Natural Sciences, Jimma University, P. O. Box 378, Jimma, Ethiopia
| | - Fuad Abduro Bushira
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China. and Department of Chemistry, College of Natural Sciences, Jimma University, P. O. Box 378, Jimma, Ethiopia and University of Science and Technology of China, Hefei 230026, P. R. China
| | - Haijuan Li
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China.
| | - Yongdong Jin
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China. and University of Science and Technology of China, Hefei 230026, P. R. China
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Nikolaou P, Valenti G, Paolucci F. Nano-structured materials for the electrochemiluminescence signal enhancement. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.138586] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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9
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Tris(2,2′-bipyridine)ruthenium(II)/thiosemicarbazide electrochemiluminescence for the detection of thiosemicarbazide and mercury (II). Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.138171] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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10
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Halawa MI, Mostafa IM, Wu G, Li BS. Amplified anodic electrogenerated chemiluminescence of tris(2,2′-bipyridyl)ruthenium(II) for ultrasensitive detection of bambuterol: Application to content uniformity testing. J Electroanal Chem (Lausanne) 2021. [DOI: 10.1016/j.jelechem.2020.114881] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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11
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Gao H, Zhang N, Pan JB, Quan YW, Cheng YX, Chen HY, Xu JJ. Aggregation-Induced Electrochemiluminescence of Conjugated Pdots Containing a Trace Ir(III) Complex: Insights into Structure-Property Relationships. ACS APPLIED MATERIALS & INTERFACES 2020; 12:54012-54019. [PMID: 33211963 DOI: 10.1021/acsami.0c18197] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
An approach to the design of iridium(III)-contained polytetraphenylethene Pdots that could exhibit highly efficient electrochemiluminescence (ECL) was proposed. The relationships of ECL performance between the iridium complex-embedded and end-capped aggregation-induced emission (AIE) active Pdots in aqueous media were investigated for the first time. The iridium complexes with cyclometalated ligand 6-phenylphenanthridine (pphent) were incorporated into the copolymers by either embedding (P0, P2-P5) or end-capping (P1) into the backbone via an ancillary 2,2'-bipyridine (bpy) ligand. Subsequently, the corresponding Pdots of P0-P5 encapsulated with poly(styrene-co-maleicanhydride) could be obtained by the nanoprecipitation method. Compared to Pdots0, Pdots2-Pdots5 with (pphent)2Ir(bpy) (M1) complex embedding, as the iridium complex content increases, ECL signals were decreased in the order of Pdots0 > Pdots2 > Pdots3 > Pdots4 > Pdots5; whereas among these Pdots of P0-P5, Pdots1 with M1 complex end-capping exhibited the highest ECL efficiency (relative to a Ru(bpy)32+ system of 18.9%) and 4.7-fold enhancement of the ECL signal compared to the parent Pdots of P0, which was mainly attributed to the good film conductivity of the completely conjugated architectures, thus prompting the intramolecular electron transfer. This work opened new avenues for designing highly efficient ECL emitters.
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Affiliation(s)
- Hang Gao
- Key Lab of Mesoscopic Chemistry of MOE and Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Nan Zhang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Jian-Bin Pan
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Yi-Wu Quan
- Key Laboratory of High Performance Polymer Material and Technology of Ministry of Education, Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Yi-Xiang Cheng
- Key Lab of Mesoscopic Chemistry of MOE and Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Hong-Yuan Chen
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Jing-Juan Xu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
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12
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Guo W, Zhou P, Sun L, Ding H, Su B. Microtube Electrodes for Imaging the Electrochemiluminescence Layer and Deciphering the Reaction Mechanism. Angew Chem Int Ed Engl 2020; 60:2089-2093. [DOI: 10.1002/anie.202012340] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 10/03/2020] [Indexed: 12/20/2022]
Affiliation(s)
- Weiliang Guo
- Institute of Analytical Chemistry Department of Chemistry Zhejiang University Hangzhou 310058 China
| | - Ping Zhou
- Institute of Analytical Chemistry Department of Chemistry Zhejiang University Hangzhou 310058 China
| | - Lei Sun
- Institute of Analytical Chemistry Department of Chemistry Zhejiang University Hangzhou 310058 China
| | - Hao Ding
- Institute of Analytical Chemistry Department of Chemistry Zhejiang University Hangzhou 310058 China
| | - Bin Su
- Institute of Analytical Chemistry Department of Chemistry Zhejiang University Hangzhou 310058 China
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13
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Guo W, Zhou P, Sun L, Ding H, Su B. Microtube Electrodes for Imaging the Electrochemiluminescence Layer and Deciphering the Reaction Mechanism. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202012340] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Weiliang Guo
- Institute of Analytical Chemistry Department of Chemistry Zhejiang University Hangzhou 310058 China
| | - Ping Zhou
- Institute of Analytical Chemistry Department of Chemistry Zhejiang University Hangzhou 310058 China
| | - Lei Sun
- Institute of Analytical Chemistry Department of Chemistry Zhejiang University Hangzhou 310058 China
| | - Hao Ding
- Institute of Analytical Chemistry Department of Chemistry Zhejiang University Hangzhou 310058 China
| | - Bin Su
- Institute of Analytical Chemistry Department of Chemistry Zhejiang University Hangzhou 310058 China
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14
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Halawa MI, Mostafa IM, Tolba MM, El-Shabrawy Y, Li BS. Development of Ru(bpy)32+-amisulpride electrogenerated chemiluminescence system for ultrasensitive and selective detection of amisulpride in pharmaceuticals and real plasma. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.114059] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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15
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Li Z, Qin W, Liang G. A mass-amplifying electrochemiluminescence film (MAEF) for the visual detection of dopamine in aqueous media. NANOSCALE 2020; 12:8828-8835. [PMID: 32253405 DOI: 10.1039/d0nr01025a] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
A bright and metal-free mass-amplifying electrochemiluminescence film (MAEF) performing in aqueous media was reported for the first time. Systematic studies demonstrated that the film substrates have a remarkable influence on the electrochemiluminescence (ECL) performance. Gold substrates promote ECL reactions and the subsequent radiative decay process simultaneously, affording an unconventional 507-fold ECL enhancement. Such a gold-enhanced MAEF is opposite to ECL systems previously reported, in which the use of gold electrodes normally results in decreased ECL intensity due to passivation of the gold surface by oxide formation. More importantly, the ECL intensity of the MAEF is linearly amplified through facilely regulating luminogen loading. Morphological analysis reveals that the film consists of grass-like nanowires with a diameter of 57 nm, which facilitate electrical communication between the luminogen, electrode, and supporting electrolyte, giving rise to the mass-amplifying ECL. The bright ECL of the solid film in aqueous media can be readily observed by the naked eye, entirely different from visible ECL systems reported in which ruthenium complexes dissolved/dispersed in solution are used as the luminogens. The film is further utilized to detect dopamine (DA), an important biomolecule related to nervous diseases, in aqueous media, with a low detection limit of 3.3 × 10-16 M. Furthermore, a facile method based on grayscale analysis of ECL images (GAEI) of the film was developed for visual and ultrasensitive DA detection in aqueous media.
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Affiliation(s)
- Zihua Li
- PCFM and GDHPPC labs, School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, China.
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16
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Trace Ir(III) complex enhanced electrochemiluminescence of AIE-active Pdots in aqueous media. Sci China Chem 2020. [DOI: 10.1007/s11426-019-9650-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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17
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Wang S, Li C, Saqib M, Qi G, Ge C, Li H, Jin Y. Quasi-Photonic Crystal Light-Scattering Signal Amplification of SiO2-Nanomembrane for Ultrasensitive Electrochemiluminescence Detection of Cardiac Troponin I. Anal Chem 2019; 92:845-852. [DOI: 10.1021/acs.analchem.9b03472] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Shanshan Wang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences (CAS), No. 5625 Renmin Street, Changchun 130022, P. R. China
- College of Chemistry, Liaoning University, Shenyang 110036, P. R. China
| | - Chuanping Li
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences (CAS), No. 5625 Renmin Street, Changchun 130022, P. R. China
- School of Biological and Chemical Engineering, Anhui Polytechnic University (AHPU), Wuhu 241000, P. R. China
| | - Muhammad Saqib
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences (CAS), No. 5625 Renmin Street, Changchun 130022, P. R. China
| | - Guohua Qi
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences (CAS), No. 5625 Renmin Street, Changchun 130022, P. R. China
| | - Chunhua Ge
- College of Chemistry, Liaoning University, Shenyang 110036, P. R. China
| | - Haijuan Li
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences (CAS), No. 5625 Renmin Street, Changchun 130022, P. R. China
| | - Yongdong Jin
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences (CAS), No. 5625 Renmin Street, Changchun 130022, P. R. China
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Chen L, Hayne DJ, Doeven EH, Agugiaro J, Wilson DJD, Henderson LC, Connell TU, Nai YH, Alexander R, Carrara S, Hogan CF, Donnelly PS, Francis PS. A conceptual framework for the development of iridium(iii) complex-based electrogenerated chemiluminescence labels. Chem Sci 2019; 10:8654-8667. [PMID: 31803440 PMCID: PMC6849491 DOI: 10.1039/c9sc01391a] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Accepted: 07/26/2019] [Indexed: 01/29/2023] Open
Abstract
Translation of the highly promising electrogenerated chemiluminescence (ECL) properties of Ir(iii) complexes (with tri-n-propylamine (TPrA) as a co-reactant) into a new generation of ECL labels for ligand binding assays necessitates the introduction of functionality suitable for bioconjugation. Modification of the ligands, however, can affect not only the photophysical and electrochemical properties of the complex, but also the reaction pathways available to generate light. Through a combined theoretical and experimental study, we reveal the limitations of conventional approaches to the design of electrochemiluminophores and introduce a new class of ECL label, [Ir(C^N)2(pt-TOxT-Sq)]+ (where C^N is a range of possible cyclometalating ligands, and pt-TOxT-Sq is a pyridyltriazole ligand with trioxatridecane chain and squarate amide ethyl ester), which outperformed commercial Ir(iii) complex labels in two commonly used assay formats. Predicted limits on the redox potentials and emission wavelengths of Ir(iii) complexes capable of generating ECL via the dominant pathway applicable in microbead supported ECL assays were experimentally verified by measuring the ECL intensities of the parent luminophores at different applied potentials, and comparing the ECL responses for the corresponding labels under assay conditions. This study provides a framework to tailor ECL labels for specific assay conditions and a fundamental understanding of the ECL pathways that will underpin exploration of new luminophores and co-reactants.
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Affiliation(s)
- Lifen Chen
- Deakin University , School of Life and Environmental Sciences , Centre for Regional and Rural Futures (CeRRF) , Institute for Frontier Materials (IFM) , Geelong , Victoria 3220 , Australia . ;
| | - David J Hayne
- Deakin University , School of Life and Environmental Sciences , Centre for Regional and Rural Futures (CeRRF) , Institute for Frontier Materials (IFM) , Geelong , Victoria 3220 , Australia . ;
| | - Egan H Doeven
- Deakin University , School of Life and Environmental Sciences , Centre for Regional and Rural Futures (CeRRF) , Institute for Frontier Materials (IFM) , Geelong , Victoria 3220 , Australia . ;
| | - Johnny Agugiaro
- Department of Chemistry and Physics , La Trobe Institute for Molecular Sciences (LIMS) , La Trobe University , Melbourne , Victoria 3086 , Australia
| | - David J D Wilson
- Department of Chemistry and Physics , La Trobe Institute for Molecular Sciences (LIMS) , La Trobe University , Melbourne , Victoria 3086 , Australia
| | - Luke C Henderson
- Deakin University , School of Life and Environmental Sciences , Centre for Regional and Rural Futures (CeRRF) , Institute for Frontier Materials (IFM) , Geelong , Victoria 3220 , Australia . ;
| | - Timothy U Connell
- Commonwealth Scientific and Industrial Research Organisation (CSIRO) , Clayton , Victoria 3168 , Australia
| | - Yi Heng Nai
- Deakin University , School of Life and Environmental Sciences , Centre for Regional and Rural Futures (CeRRF) , Institute for Frontier Materials (IFM) , Geelong , Victoria 3220 , Australia . ;
| | - Richard Alexander
- Deakin University , School of Life and Environmental Sciences , Centre for Regional and Rural Futures (CeRRF) , Institute for Frontier Materials (IFM) , Geelong , Victoria 3220 , Australia . ;
| | - Serena Carrara
- Department of Chemistry and Physics , La Trobe Institute for Molecular Sciences (LIMS) , La Trobe University , Melbourne , Victoria 3086 , Australia
| | - Conor F Hogan
- Department of Chemistry and Physics , La Trobe Institute for Molecular Sciences (LIMS) , La Trobe University , Melbourne , Victoria 3086 , Australia
| | - Paul S Donnelly
- School of Chemistry , Bio21 Molecular Science and Biotechnology Institute , The University of Melbourne , Victoria 3010 , Australia
| | - Paul S Francis
- Deakin University , School of Life and Environmental Sciences , Centre for Regional and Rural Futures (CeRRF) , Institute for Frontier Materials (IFM) , Geelong , Victoria 3220 , Australia . ;
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Electrochemiluminescence study of AuNPs/CdTe-QDs/SWCNTs/chitosan nanocomposite modified carbon nanofiber screen-printed electrode with [Ru(bpy)3]2+/TPrA. INORG CHEM COMMUN 2019. [DOI: 10.1016/j.inoche.2019.05.030] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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20
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Silver-based metal-organic gels as novel coreactant for enhancing electrochemiluminescence and its biosensing potential. Biosens Bioelectron 2019; 134:29-35. [DOI: 10.1016/j.bios.2019.03.058] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 03/07/2019] [Accepted: 03/26/2019] [Indexed: 01/06/2023]
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21
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Tris(2,2′-bipyridyl)ruthenium(II) electrochemiluminescent determination of ethyl formate. Anal Bioanal Chem 2018; 410:6779-6785. [DOI: 10.1007/s00216-018-1275-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2018] [Revised: 07/07/2018] [Accepted: 07/16/2018] [Indexed: 01/28/2023]
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22
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Yuan F, Qi L, Fereja TH, Snizhko DV, Liu Z, Zhang W, Xu G. Regenerable bipolar electrochemiluminescence device using glassy carbon bipolar electrode, stainless steel driving electrode and cold patch. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2017.12.186] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Valenti G, Scarabino S, Goudeau B, Lesch A, Jović M, Villani E, Sentic M, Rapino S, Arbault S, Paolucci F, Sojic N. Single Cell Electrochemiluminescence Imaging: From the Proof-of-Concept to Disposable Device-Based Analysis. J Am Chem Soc 2017; 139:16830-16837. [PMID: 29064235 DOI: 10.1021/jacs.7b09260] [Citation(s) in RCA: 182] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
We report here the development of coreactant-based electrogenerated chemiluminescence (ECL) as a surface-confined microscopy to image single cells and their membrane proteins. Labeling the entire cell membrane allows one to demonstrate that, by contrast with fluorescence, ECL emission is only detected from fluorophores located in the immediate vicinity of the electrode surface (i.e., 1-2 μm). Then, to present the potential diagnostic applications of our approach, we selected carbon nanotubes (CNT)-based inkjet-printed disposable electrodes for the direct ECL imaging of a labeled plasma receptor overexpressed on tumor cells. The ECL fluorophore was linked to an antibody and enabled to localize the ECL generation on the cancer cell membrane in close proximity to the electrode surface. Such a result is intrinsically associated with the unique ECL mechanism and is rationalized by considering the limited lifetimes of the electrogenerated coreactant radicals. The electrochemical stimulus used for luminescence generation does not suffer from background signals, such as the typical autofluorescence of biological samples. The presented surface-confined ECL microscopy should find promising applications in ultrasensitive single cell imaging assays.
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Affiliation(s)
- Giovanni Valenti
- Department of Chemistry ''G. Ciamician'', University of Bologna , Via Selmi 2, 40126 Bologna, Italy
| | - Sabina Scarabino
- University of Bordeaux, Bordeaux INP, ISM, UMR CNRS 5255, 33607 Pessac, France
| | - Bertrand Goudeau
- University of Bordeaux, Bordeaux INP, ISM, UMR CNRS 5255, 33607 Pessac, France
| | - Andreas Lesch
- Laboratory of Physical and Analytical Electrochemistry, EPFL Valais Wallis , Rue de l'Industrie 17, CP 440, CH-1951 Sion, Switzerland
| | - Milica Jović
- Laboratory of Physical and Analytical Electrochemistry, EPFL Valais Wallis , Rue de l'Industrie 17, CP 440, CH-1951 Sion, Switzerland
| | - Elena Villani
- Department of Chemistry ''G. Ciamician'', University of Bologna , Via Selmi 2, 40126 Bologna, Italy
| | - Milica Sentic
- University of Bordeaux, Bordeaux INP, ISM, UMR CNRS 5255, 33607 Pessac, France
| | - Stefania Rapino
- Department of Chemistry ''G. Ciamician'', University of Bologna , Via Selmi 2, 40126 Bologna, Italy
| | - Stéphane Arbault
- University of Bordeaux, Bordeaux INP, ISM, UMR CNRS 5255, 33607 Pessac, France
| | - Francesco Paolucci
- Department of Chemistry ''G. Ciamician'', University of Bologna , Via Selmi 2, 40126 Bologna, Italy.,ICMATE-CNR Bologna Associate Unit, University of Bologna , via Selmi 2, 40126 Bologna, Italy
| | - Neso Sojic
- University of Bordeaux, Bordeaux INP, ISM, UMR CNRS 5255, 33607 Pessac, France
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24
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Zhou Y, Kong L, Xie K, Liu C. Heteroleptic iridium(III) complex with N -heterocyclic carbene ligand: Synthesis, photophysics, theoretical calculations and electrochemiluminescence. J Organomet Chem 2017. [DOI: 10.1016/j.jorganchem.2017.07.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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25
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Valenti G, Rampazzo E, Bonacchi S, Petrizza L, Marcaccio M, Montalti M, Prodi L, Paolucci F. Variable Doping Induces Mechanism Swapping in Electrogenerated Chemiluminescence of Ru(bpy)32+ Core–Shell Silica Nanoparticles. J Am Chem Soc 2016; 138:15935-15942. [DOI: 10.1021/jacs.6b08239] [Citation(s) in RCA: 82] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Giovanni Valenti
- Department
of Chemistry ‘‘G. Ciamician’’, University of Bologna, Via Selmi 2, 40126 Bologna, Italy
| | - Enrico Rampazzo
- Department
of Chemistry ‘‘G. Ciamician’’, University of Bologna, Via Selmi 2, 40126 Bologna, Italy
| | - Sara Bonacchi
- Department
of Chemistry ‘‘G. Ciamician’’, University of Bologna, Via Selmi 2, 40126 Bologna, Italy
| | - Luca Petrizza
- Department
of Chemistry ‘‘G. Ciamician’’, University of Bologna, Via Selmi 2, 40126 Bologna, Italy
| | - Massimo Marcaccio
- Department
of Chemistry ‘‘G. Ciamician’’, University of Bologna, Via Selmi 2, 40126 Bologna, Italy
| | - Marco Montalti
- Department
of Chemistry ‘‘G. Ciamician’’, University of Bologna, Via Selmi 2, 40126 Bologna, Italy
| | - Luca Prodi
- Department
of Chemistry ‘‘G. Ciamician’’, University of Bologna, Via Selmi 2, 40126 Bologna, Italy
| | - Francesco Paolucci
- Department
of Chemistry ‘‘G. Ciamician’’, University of Bologna, Via Selmi 2, 40126 Bologna, Italy
- ICMATE-CNR
Bologna Associate Unit, University of Bologna, Via Selmi 2, 40126 Bologna, Italy
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26
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Valenti G, Fiorani A, Li H, Sojic N, Paolucci F. Essential Role of Electrode Materials in Electrochemiluminescence Applications. ChemElectroChem 2016. [DOI: 10.1002/celc.201600602] [Citation(s) in RCA: 102] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Giovanni Valenti
- Department of Chemistry “G. Ciamician”; University of Bologna; Via Selmi 2 40126 Bologna Italy
| | - Andrea Fiorani
- Department of Chemistry “G. Ciamician”; University of Bologna; Via Selmi 2 40126 Bologna Italy
| | - Haidong Li
- University of Bordeaux; INP Bordeaux, Institut des Sciences Moléculaires, CNRS UMR 5255, ENSCBP; 33607 Pessac France
| | - Neso Sojic
- University of Bordeaux; INP Bordeaux, Institut des Sciences Moléculaires, CNRS UMR 5255, ENSCBP; 33607 Pessac France
| | - Francesco Paolucci
- Department of Chemistry “G. Ciamician”; University of Bologna; Via Selmi 2 40126 Bologna Italy
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