1
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Shen L, Tang J, Li M, Yu C, Zhang M, Wang S, Li Y, Liu Z. Facile synthesis of sulfur quantum dots with red light emission: Implications for electrochemiluminescence analysis application. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 323:124878. [PMID: 39084015 DOI: 10.1016/j.saa.2024.124878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Revised: 06/29/2024] [Accepted: 07/22/2024] [Indexed: 08/02/2024]
Abstract
Sulfur quantum dots (SQDs) have been reported as a potential candidate due to their low toxicity and high luminescent performance. Here, SQDs with red light fluorescence (FL) emission were synthesized by a one-step hydrothermal method using Na2CO3 as an etching agent, using sublimed sulfur powder as a sulfur source, and using bovine serum albumin (BSA) as a stabilizer. The choice of etching agent (NaOH or Na2CO3) realized the tuning of SQDs' FL emission with blue and red light. The synthesized SQDs showed good FL stability and high FL efficiency, with a quantum yield of 1.03 % in an aqueous solution at 575 nm. In addition, stable and efficient electrochemiluminescence (ECL) emission was achieved by employing SQDs as ECL emitters with K2S2O8 as the co-reactant. The resorcinol (RS) can enhance the ECL intensity of the SQDs-K2S2O8 system, and the ECL intensity had a good linear relationship with the concentration of RS in a range from 2.5 nM to 25 nM with a detection limit of 0.61 nM. This work provides an emerging red-light luminescent SQDs, which would open up a way for the development of new types of luminophor in FL or ECL analysis. It also provides convenience for bio-labeling of live cells, in vivo imaging and provide new materials for photoelectric devices.
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Affiliation(s)
- Lihua Shen
- College of Chemistry and Chemical Engineering, Xi'an University of Science and Technology, Xi'an 710054, China.
| | - Jundan Tang
- College of Chemistry and Chemical Engineering, Xi'an University of Science and Technology, Xi'an 710054, China
| | - Meng Li
- College of Chemistry and Chemical Engineering, Xi'an University of Science and Technology, Xi'an 710054, China
| | - Chunxia Yu
- College of Chemistry and Chemical Engineering, Xi'an University of Science and Technology, Xi'an 710054, China
| | - Meng Zhang
- College of Chemistry and Chemical Engineering, Xi'an University of Science and Technology, Xi'an 710054, China
| | - Shan Wang
- School of Chemistry and Chemical Engineering, Xianyang Normal University, Xianyang 712000, China.
| | - Yuangang Li
- College of Chemistry and Chemical Engineering, Xi'an University of Science and Technology, Xi'an 710054, China
| | - Zhifang Liu
- School of Integrated Circuits and Electronics, Beijing Institute of Technology, Beijing 100081, China.
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Wang YZ, Zhang YQ, Liu Y, Li YR, Li ML, Meng GR, Mi L, Hu YH, Xu JJ. Tripedal DNA Walker as a Signal Amplifier Combined with a Potential-Resolved Multicolor Electrochemiluminescence Strategy for Ultrasensitive Detection of Prostate Cancer Staging Indicators. Anal Chem 2024; 96:5852-5859. [PMID: 38556977 DOI: 10.1021/acs.analchem.3c05606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
A multicolor electrochemiluminescence (ECL) biosensor based on a closed bipolar electrode (BPE) array was proposed for the rapid and intuitive analysis of three prostate cancer staging indicators. First, [Irpic-OMe], [Ir(ppy)2(acac)], and [Ru(bpy)3]2+ were applied as blue, green, and red ECL emitters, respectively, whose mixed ECL emission colors covered the whole visible region by varying the applied voltages. Afterward, we designed a simple Mg2+-dependent DNAzyme (MNAzyme)-driven tripedal DNA walker (TD walker) to release three output DNAs. Immediately after, three output DNAs were added to the cathodic reservoirs of the BPE for incubation. After that, we found that the emission colors from the anode of the BPE changed as a driving voltage of 8.0 V was applied, mainly due to changes in the interfacial potential and faradaic currents at the two poles of the BPE. Via optimization of the experimental parameters, cutoff values of such three indicators at different clinical stages could be identified instantly with the naked eye, and standard precision swatches with multiple indicators could be prepared. Finally, in order to precisely determine the prostate cancer stage, the multicolor ECL device was used for clinical analysis, and the resulting images were then compared with standard swatches, laying the way for accurate prostate cancer therapy.
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Affiliation(s)
- Yin-Zhu Wang
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Yu-Qi Zhang
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Yan Liu
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Yue-Rong Li
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Meng-Li Li
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Gong-Rui Meng
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Li Mi
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Yong-Hong Hu
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Jing-Juan Xu
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, P. R. China
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Kerr E, Knezevic S, Francis PS, Hogan CF, Valenti G, Paolucci F, Kanoufi F, Sojic N. Electrochemiluminescence Amplification in Bead-Based Assays Induced by a Freely Diffusing Iridium(III) Complex. ACS Sens 2023; 8:933-939. [PMID: 36701204 DOI: 10.1021/acssensors.2c02697] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Heterogeneous electrochemiluminescence (ECL) assays employing tri-n-propylamine as a co-reactant and a tris(2,2'-bipyridine)ruthenium(II) ([Ru(bpy)3]2+) derivative as an emissive label are integral to the majority of academic and commercial applications of ECL sensing. This model system is an active research area and constitutes the basis of successfully commercialized bead-based ECL immunoassays. Herein, we propose a novel approach to the enhancement of such conventional ECL assays via the incorporation of a second metal coordination complex, [Ir(sppy)3]3- (where sppy = 5'-sulfo-2-phenylpyridinato-C2,N), to the experimental system. By employing ECL microscopy, we are able to map the spatial distribution of ECL emission at the surface of the bead, from [Ru(bpy)3]2+ labels, and solution-phase emission, from [Ir(sppy)3]3-. The developed [Ir(sppy)3]3--mediated enhancement approach elicited a significant improvement (70.9-fold at 0.9 V and 2.9-fold at 1.2 V vs Ag/AgCl) of the ECL signal from [Ru(bpy)3]2+ labels immobilized on the surface of a polystyrene bead. This dramatic enhancement in ECL signal, particularly at low oxidation potentials, has important implications for the improvement of existing heterogeneous ECL assays and ECL-based microscopy, by amplifying the signal, opening new bioanalytical detection schemes, and reducing both electrode surface passivation and deleterious side reactions.
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Affiliation(s)
- Emily Kerr
- Institute for Frontier Materials, Deakin University, Geelong, Victoria 3220, Australia
| | - Sara Knezevic
- Univ. Bordeaux, CNRS, Bordeaux INP, Institut des Scie nces Moléculaires, UMR 5255, 16 Avenue Pey-Berland, 33607 Pessac, France
| | - Paul S Francis
- School of Life and Environmental Sciences, Deakin University, Geelong, Victoria 3220, Australia
| | - Conor F Hogan
- Department of Biochemistry and Chemistry, Biomedical and Environmental Sensor Technology Centre, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria 3086, Australia
| | - Giovanni Valenti
- Department of Chemistry "Giacomo Ciamician", University of Bologna, 40126 Bologna, Italy
| | - Francesco Paolucci
- Department of Chemistry "Giacomo Ciamician", University of Bologna, 40126 Bologna, Italy
| | | | - Neso Sojic
- Univ. Bordeaux, CNRS, Bordeaux INP, Institut des Scie nces Moléculaires, UMR 5255, 16 Avenue Pey-Berland, 33607 Pessac, France
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Zhang H, Liu Y, Yao M, Han W, Zhang S. Cathodic Electrochemiluminesence Microscopy for Imaging of Single Carbon Nanotube and Nucleolin at Single Tumor Cell. Anal Chem 2023; 95:570-574. [PMID: 36596251 DOI: 10.1021/acs.analchem.2c04425] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Cathodic electrochemiluminesence (ECL) microscopy based on luminol analog L012 was originally established to implement the imaging of a single nanotube and nucleolin on a single tumor cell. This microscopy utilizes multiwalled carbon nanotubes (MWCNTs) as advanced coreactant accelerators to efficiently convert dissolved oxygen (O2) and H2O2 into reactive oxygen species (ROS) due to excellent electrocatalytic properties. The produced ROS could oxide L012 into an excited state of L012 leading to a bright cathodic ECL illumination, thereby promoting ECL imaging of MWCNTs at a low triggering potential. After being modified with AS1411 aptamers, MWCNTs@AS1411 probes were incubated with tumor cells for specific ECL imaging of nucleolin on the plasma membrane, which permits cathodic ECL microscopy for label-free bioassays without ECL tags. The L012-based cathodic ECL microscopy with a moderate operating potential and label-free characteristics provides a universal approach in single nanomaterial and single-cell imaging and analyses.
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Affiliation(s)
- Huairong Zhang
- Collaborative Innovation Center of Tumor Marker Detection Technology, Equipment and Diagnosis-Therapy Integration in Universities of Shandong, Shandong Province Key Laboratory of Detection Technology for Tumor Makers, School of Chemistry and Chemical Engineering, Linyi University, Linyi, 276005, China
| | - Yong Liu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, P. R. China
| | - Mei Yao
- Collaborative Innovation Center of Tumor Marker Detection Technology, Equipment and Diagnosis-Therapy Integration in Universities of Shandong, Shandong Province Key Laboratory of Detection Technology for Tumor Makers, School of Chemistry and Chemical Engineering, Linyi University, Linyi, 276005, China
| | - Wenxiu Han
- Collaborative Innovation Center of Tumor Marker Detection Technology, Equipment and Diagnosis-Therapy Integration in Universities of Shandong, Shandong Province Key Laboratory of Detection Technology for Tumor Makers, School of Chemistry and Chemical Engineering, Linyi University, Linyi, 276005, China
| | - Shusheng Zhang
- Collaborative Innovation Center of Tumor Marker Detection Technology, Equipment and Diagnosis-Therapy Integration in Universities of Shandong, Shandong Province Key Laboratory of Detection Technology for Tumor Makers, School of Chemistry and Chemical Engineering, Linyi University, Linyi, 276005, China
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Liu J, Yu K, Zhang H, He J, Jiang J, Luo H. Mass spectrometric detection of fleeting neutral intermediates generated in electrochemical reactions. Chem Sci 2021; 12:9494-9499. [PMID: 34349924 PMCID: PMC8278903 DOI: 10.1039/d1sc01385h] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 06/09/2021] [Indexed: 11/23/2022] Open
Abstract
Towards the goal of on-line monitoring of transient neutral intermediates during electrochemical reactions, an electrochemistry-neutral reionization-mass spectrometry (EC-NR-MS) technique was developed in this work. The EC-NR setup consisted of a customized EC flow cell, a sonic spray ionization source, a heating tube, an ion deflector and an electrospray ionization source, which were respectively used for the precise control of the electrochemical reaction, solution nebulization, droplet desolvation, ion deflection and neutral intermediate ionization. Based on the EC-NR-MS approach, some long-sought neutral radicals including TPrA˙, DBAE˙ and TEOA˙, which belong to important reductive intermediates in electrochemiluminescence (ECL) reactions, were successfully identified which helps to clarify the previously unproven ECL reaction mechanism. These findings were also supported by spin-trapping experiments and the tandem MS technique. Accordingly, the EC-NR-MS method provides a direct solution for studying complicated electrochemical reactions, especially for detecting short-lived neutral radicals as well as ionic intermediates. An electrochemistry-neutral reionization-mass spectrometry (EC-NR-MS) technique was developed for on-line studying the long-sought neutral radicals generated in electrochemical reactions.![]()
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Affiliation(s)
- Jilin Liu
- School of Environment, School of Marine Science and Technology (Weihai), Harbin Institute of Technology Weihai Shandong 150090 China .,State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology Harbin Heilongjiang 150090 China.,School of Chemistry and Chemical Engineering, Harbin Institute of Technology Harbin Heilongjiang 150001 China
| | - Kai Yu
- School of Environment, School of Marine Science and Technology (Weihai), Harbin Institute of Technology Weihai Shandong 150090 China .,State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology Harbin Heilongjiang 150090 China
| | - Hong Zhang
- School of Environment, School of Marine Science and Technology (Weihai), Harbin Institute of Technology Weihai Shandong 150090 China .,State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology Harbin Heilongjiang 150090 China
| | - Jing He
- School of Environment, School of Marine Science and Technology (Weihai), Harbin Institute of Technology Weihai Shandong 150090 China .,State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology Harbin Heilongjiang 150090 China.,School of Chemistry and Chemical Engineering, Harbin Institute of Technology Harbin Heilongjiang 150001 China
| | - Jie Jiang
- School of Environment, School of Marine Science and Technology (Weihai), Harbin Institute of Technology Weihai Shandong 150090 China .,State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology Harbin Heilongjiang 150090 China.,School of Chemistry and Chemical Engineering, Harbin Institute of Technology Harbin Heilongjiang 150001 China
| | - Hai Luo
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University Beijing 100871 China
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6
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Wang XY, Zhu KD, Zhu J, Ding SN. Photonic Crystal of Polystyrene Nanomembrane: Signal Amplification and Low Triggered Potential Electrochemiluminescence for Tetracycline Detection. Anal Chem 2021; 93:2959-2967. [PMID: 33506679 DOI: 10.1021/acs.analchem.0c04613] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
In this work, a low triggered potential electrochemiluminescence strategy based on gold-filled photonic crystals (GPCs) electrodes composed of photonic crystals self-assembled with polystyrene spheres and gold nanoparticles embedded in the gaps of the photonic crystals was proposed. The GPCs electrodes served as the detection platform to bind antigen, and Ru(bpy)32+-COOH as a luminophore was labeled on the antibody (Ab). Then, Ru(bpy)32+-COOH/Ab was connected to the immobilized antigen on the surface of the photonic crystals by the immunoreaction to avoid direct contact with the gold nanoparticles surface. ECL emission can only be initiated by electrochemical oxidation of tripropylamine (TPrA) since Ru(bpy)32+-COOH cannot be oxidized directly on the electrode surface. The TPrA·+ and TPrA· radicals generated by the oxidation of TPrA can spread to the vicinity of Ru(bpy)32+-COOH over a short distance and react with the Ru(bpy)32+-COOH, eventually producing ECL emission. The potential of ECL emission caused by TPrA oxidation was about 300 mV lower than that caused by Ru(bpy)32+-COOH oxidation because the oxidation potential of TPrA (0.95 V vs SCE) was lower than Ru(bpy)32+-COOH (1.25 V vs SCE). Furthermore, the photonic crystals nanomembrane has the capability to enhance electrochemiluminescence. Thereafter, tetracycline antibiotic as a model compound was successfully detected via competitive immunoassay on GPCs electrodes with a detection limit of 0.075 pg/mL (S/N = 3), which has broad application prospects in the field of analysis and detection.
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Affiliation(s)
- Xiao-Yan Wang
- Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
| | - Kai-Di Zhu
- Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
| | - Jin Zhu
- Huadong Medical Institute of Biotechniques, Nanjing 210002, China
| | - Shou-Nian Ding
- Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
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Affiliation(s)
- Kira L. Rahn
- Department of Chemistry, Iowa State University, 1605 Gilman Hall, 2415 Osborn Drive, Ames, Iowa 50011-1021, United States
| | - Robbyn K. Anand
- Department of Chemistry, Iowa State University, 1605 Gilman Hall, 2415 Osborn Drive, Ames, Iowa 50011-1021, United States
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8
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Raju CV, Sornambigai M, Kumar SS. Unraveling the reaction mechanism of co-reactant free in-situ cathodic solid state ECL of Ru(bpy)32+ molecule immobilized on Nafion coated nanoporous gold electrode. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.136920] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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9
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Chikhaliwala P, Chandra S. Poly‐amidoamine Dendrimers@Fe 3O 4Based Electrochemiluminescent Nanomaterials for Biosensing of Liver Cancer Biomarkers. ELECTROANAL 2020. [DOI: 10.1002/elan.202060075] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Priyal Chikhaliwala
- SVKM's NMIMS University Sunandan Divatia School of Science, Department of Biological Sciences, Vile Parle (West) Mumbai 400 056 India
| | - Sudeshna Chandra
- SVKM's NMIMS University Sunandan Divatia School of Science, Department of Chemistry, Vile Parle (West) Mumbai 400 056 India
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10
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Heiderscheit TS, Gallagher MJ, Baiyasi R, Collins SSE, Hosseini Jebeli SA, Scarabelli L, Al-Zubeidi A, Flatebo C, Chang WS, Landes CF, Link S. Nanoelectrode-emitter spectral overlap amplifies surface enhanced electrogenerated chemiluminescence. J Chem Phys 2019; 151:144712. [PMID: 31615232 DOI: 10.1063/1.5118669] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Electrogenerated chemiluminescence (ECL) is a promising technique for low concentration molecular detection. To improve the detection limit, plasmonic nanoparticles have been proposed as signal boosting antennas to amplify ECL. Previous ensemble studies have hinted that spectral overlap between the nanoparticle antenna and the ECL emitter may play a role in signal enhancement. Ensemble spectroscopy, however, cannot resolve heterogeneities arising from colloidal nanoparticle size and shape distributions, leading to an incomplete picture of the impact of spectral overlap. Here, we isolate the effect of nanoparticle-emitter spectral overlap for a model ECL system, coreaction of tris(2,2'-bipyridyl)dichlororuthenium(ii) hexahydrate and tripropylamine, at the single-particle level while minimizing other factors influencing ECL intensities. We found a 10-fold enhancement of ECL among 952 gold nanoparticles. This signal enhancement is attributed exclusively to spectral overlap between the nanoparticle and the emitter. Our study provides new mechanistic insight into plasmonic enhancement of ECL, creating opportunities for low concentration ECL sensing.
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Affiliation(s)
- Thomas S Heiderscheit
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas 77005, USA
| | - Miranda J Gallagher
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas 77005, USA
| | - Rashad Baiyasi
- Department of Electrical and Computer Engineering, Rice University, 6100 Main Street, Houston, Texas 77005, USA
| | - Sean S E Collins
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas 77005, USA
| | - Seyyed Ali Hosseini Jebeli
- Department of Electrical and Computer Engineering, Rice University, 6100 Main Street, Houston, Texas 77005, USA
| | - Leonardo Scarabelli
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas 77005, USA
| | - Alexander Al-Zubeidi
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas 77005, USA
| | - Charlotte Flatebo
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas 77005, USA
| | - Wei-Shun Chang
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas 77005, USA
| | - Christy F Landes
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas 77005, USA
| | - Stephan Link
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas 77005, USA
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Li Z, Wu S, Zhang B, Fu L, Zou G. Promising Mercaptobenzoic Acid-Bridged Charge Transfer for Electrochemiluminescence from CuInS 2@ZnS Nanocrystals via Internal Cu +/Cu 2+ Couple Cycling. J Phys Chem Lett 2019; 10:5408-5413. [PMID: 31464133 DOI: 10.1021/acs.jpclett.9b02400] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Screening novel electrochemiluminescence (ECL) systems with less inherent interference is strongly anticipated for ECL evolution. Herein, near-infrared ECL (∼730 nm) with an ultralow triggering potential of 0.45 V (vs Ag/AgCl) is achieved under physiological conditions with 4-mercaptobenzoic acid (MBA) and citrate capped CuInS2@ZnS (CIS@ZnS) nanocrystals (NCs), which is promising for less autofluorescence and electrochemical interference. Cu+ species within the CIS@ZnS NCs can be electrochemically oxidized at 0.45 V to form internal Cu2+ defects, while the capping agent MBA can bridge a direct charge transfer between the oxidized NCs and the traditional coreactant tripropylamine (TPrA) for weak ECL at 0.45 V. When hydrazine hydrate is adopted as coreactant, CIS@ZnS NCs/hydrazine hydrate exhibits 8k-fold enhanced oxidative-reduction ECL via the internal Cu+/Cu2+ couple cycling at 0.45 V in comparison to CIS@ZnS NCs/TPrA. This work opens a way to enhance the radiative charge transfer of NCs.
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Affiliation(s)
- Zhipeng Li
- School of Chemistry , Dalian University of Technology , Dalian 116023 , China
- School of Chemistry and Chemical Engineering , Shandong University , Jinan 250100 , China
| | - Shuo Wu
- School of Chemistry , Dalian University of Technology , Dalian 116023 , China
| | - Bin Zhang
- School of Chemistry and Chemical Engineering , Shandong University , Jinan 250100 , China
| | - Li Fu
- School of Chemistry and Chemical Engineering , Shandong University , Jinan 250100 , China
| | - Guizheng Zou
- School of Chemistry and Chemical Engineering , Shandong University , Jinan 250100 , China
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Wongkaew N, Simsek M, Griesche C, Baeumner AJ. Functional Nanomaterials and Nanostructures Enhancing Electrochemical Biosensors and Lab-on-a-Chip Performances: Recent Progress, Applications, and Future Perspective. Chem Rev 2018; 119:120-194. [DOI: 10.1021/acs.chemrev.8b00172] [Citation(s) in RCA: 303] [Impact Index Per Article: 50.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Nongnoot Wongkaew
- Institute of Analytical Chemistry, Chemo- and Biosensors, University of Regensburg, 93053 Regensburg, Germany
| | - Marcel Simsek
- Institute of Analytical Chemistry, Chemo- and Biosensors, University of Regensburg, 93053 Regensburg, Germany
| | - Christian Griesche
- Institute of Analytical Chemistry, Chemo- and Biosensors, University of Regensburg, 93053 Regensburg, Germany
| | - Antje J. Baeumner
- Institute of Analytical Chemistry, Chemo- and Biosensors, University of Regensburg, 93053 Regensburg, Germany
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13
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Zhuo Y, Wang HJ, Lei YM, Zhang P, Liu JL, Chai YQ, Yuan R. Electrochemiluminescence biosensing based on different modes of switching signals. Analyst 2018; 143:3230-3248. [DOI: 10.1039/c8an00276b] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Electrochemiluminescence (ECL) has attracted much attention in various fields of analysis owing to low background signals, high sensitivity, and excellent controllability.
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Affiliation(s)
- Ying Zhuo
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University)
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
| | - Hai-Jun 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
| | - Yan-Mei Lei
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University)
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
| | - Pu Zhang
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University)
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
| | - Jia-Li Liu
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University)
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
| | - Ya-Qin 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
| | - 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
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