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Huang W, Yang C, Gao J, Ye J, Yuan R, Xu W. Cooperative Amplification of Au@FeCo as Mimetic Catalytic Nanozymes and Bicycled Hairpin Assembly for Ultrasensitive Electrochemical Biosensing. Anal Chem 2023; 95:5710-5718. [PMID: 36941819 DOI: 10.1021/acs.analchem.2c05725] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/23/2023]
Abstract
Exploring the cooperative amplification of peroxidase-like metal nanocomposites and cycled hairpin assembly is intriguing for sensitive bioanalysis. Herein, we report the first design of a unique electrochemical biosensor based on mimicking Au@FeCo nanozymes and bicycled hairpin assembly (BHA) for synergistic signal amplification. By loading the enzyme-like FeCo alloy in Au nanoparticles (AuNPs), the as-synthesized Au@FeCo hybrids display great improvement of electronic conductivity and active surface area and excellent mimic catalase activity to H2O2 decomposition into •OH radicals. The immobilization of Au@FeCo in an electrode sensing interface is stabilized via the resulting electrodeposition in HAuCl4 while efficiently accelerating the electron transfer of electroactive ferrocene (Fc). Upon the immobilization of a helping hairpin (HH) via Au-S bonds, a specific DNA trigger (T*) is introduced to activate BHA operation through competitive strand displacement reactions among recognizing hairpin (RH), signaling hairpin (SH), and HH. T* and RH are rationally released to catalyze two cycles, in which the transient depletion of dsDNA intermediates rapidly drives the progressive hairpin assemblies to output more products SH·HH. Thus, the efficient amplification of Au@FeCo mimic catalase activity combined with BHA leads to a significantly increased current signal of Fc dependent on miRNA-21 analogous to T*, thereby directing the creation of a highly sensitive electrochemical biosensor having applicable potential in actual samples.
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Affiliation(s)
- Weixiang Huang
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China
| | - Chunli Yang
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China
| | - Jiaxi Gao
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China
| | - Jingjing Ye
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China
| | - Ruo Yuan
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China
| | - Wenju Xu
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China
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Manaf BAA, Hong SP, Rizwan M, Arshad F, Gwenin C, Ahmed MU. Recent advancement in sensitive detection of carcinoembryonic antigen using nanomaterials based immunosensors. SURFACES AND INTERFACES 2023; 36:102596. [DOI: 10.1016/j.surfin.2022.102596] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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Bimetallic organic framework Cu/UiO-66 mediated "fluorescence turn-on" method for ultrasensitive and rapid detection of carcinoembryonic antigen (CEA). Anal Chim Acta 2021; 1183:339000. [PMID: 34627512 DOI: 10.1016/j.aca.2021.339000] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 07/22/2021] [Accepted: 08/26/2021] [Indexed: 12/28/2022]
Abstract
Carcinoembryonic antigen (CEA) is a key serum tumor marker which is overexpressed in all types of adenocarcinomas. Therefore, establish the ultrasensitive, accurate and rapid method for CEA detection is essential for reducing the mortality of cancer. Here, a bimetallic organic framework Cu/UiO-66 was synthesized through the simple two-step hydrothermal method and used to construct a "fluorescence turn-on" analytical method for CEA detection. Cu/UiO-66 can adsorb CEA aptamers modified with FAM (CEA/FAM-Apt) and take place photoinduced electron transfer (PET) between Cu/UiO-66 and FAM, resulting in the fluorescence of the FAM is quenched. When CEA is present, CEA and CEA/FAM-Apt are tightly combined, making CEA/FAM-Apt far away from the Cu/UiO-66 surface. As a result, the fluorescence intensity of the system was significantly restored. Under optimal conditions, the proposed "fluorescence turn-on" method can detect CEA as low as 0.01 ng mL-1 in a range of 0.01-0.3 ng mL-1. Besides, this analytical method owns good selectivity, reproducibility and serum applicability, which provides a new platform for the direct detection of clinical diagnosis-related markers.
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Shang Y, Liu F, Wang Y, Li N, Ding B. Enzyme Mimic Nanomaterials and Their Biomedical Applications. Chembiochem 2020; 21:2408-2418. [PMID: 32227615 DOI: 10.1002/cbic.202000123] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 03/28/2020] [Indexed: 01/10/2023]
Abstract
Nanomaterials with enzyme-mimicking behavior (nanozymes) have attracted a lot of research interest recently. In comparison to natural enzymes, nanozymes hold many advantages, such as good stability, ease of production and surface functionalization. As the catalytic mechanism of nanozymes is gradually revealed, the application fields of nanozymes are also broadly explored. Beyond traditional colorimetric detection assays, nanozymes have been found to hold great potential in a variety of biomedical fields, such as tumor theranostics, antibacterial, antioxidation and bioorthogonal reactions. In this review, we summarize nanozymes consisting of different nanomaterials. In addition, we focus on the catalytic performance of nanozymes in biomedical applications. The prospects and challenges in the practical use of nanozymes are discussed at the end of this Minireview.
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Affiliation(s)
- Yingxu Shang
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, 11 BeiYiTiao, ZhongGuanCun, Beijing, 100190, China.,University of Chinese Academy of Sciences, 52 Sanlihe Rd., Beijing, 100864, China
| | - Fengsong Liu
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, 11 BeiYiTiao, ZhongGuanCun, Beijing, 100190, China.,University of Chinese Academy of Sciences, 52 Sanlihe Rd., Beijing, 100864, China
| | - Yuanning Wang
- Northeast Electric Power University, 169, Changchun Road, Jilin City, Jilin Province, 132012, China
| | - Na Li
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, 11 BeiYiTiao, ZhongGuanCun, Beijing, 100190, China
| | - Baoquan Ding
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, 11 BeiYiTiao, ZhongGuanCun, Beijing, 100190, China.,University of Chinese Academy of Sciences, 52 Sanlihe Rd., Beijing, 100864, China.,School of Materials Science and Engineering, Zhengzhou University, No.100 Science Avenue, Zhengzhou City, Henan Province, 450001, China
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Wei Q, Wang C, Li P, Wu T, Yang N, Wang X, Wang Y, Li C. ZnS/C/MoS 2 Nanocomposite Derived from Metal-Organic Framework for High-Performance Photo-Electrochemical Immunosensing of Carcinoembryonic Antigen. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1902086. [PMID: 31361083 DOI: 10.1002/smll.201902086] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Revised: 07/07/2019] [Indexed: 06/10/2023]
Abstract
A hexafluorophosphate ionic liquid is used as a functional monomer to prepare a metal-organic framework (Zn-MOF). Zn-MOF is used as a template for MoS2 nanosheets synthesis and further carbonized to yield light-responsive ZnS/C/MoS2 nanocomposites. Zn-MOF, carbonized-Zn-MOF, and ZnS/C/MoS2 nanocomposites are characterized by Fourier transform infrared spectroscopy, transmission electron microscopy, X-ray diffraction pattern, scanning electron microscopy (SEM), element mapping, Raman spectroscopy, X-ray photoelectron spectroscopy, fluorescence, and nitrogen-adsorption analysis. Carcinoembryonic antigen (CEA) is selected as a model to construct an immunosensing platform to evaluate the photo-electrochemical (PEC) performances of ZnS/C/MoS2 nanocomposites. A sandwich-type PEC immunosensor is fabricated by immobilizing CEA antibody (Ab1 ) onto the ZnS/C/MoS2 /GCE surface, subsequently binding CEA and the alkaline phosphatase-gold nanoparticle labeled CEA antibody (ALP-Au-Ab2 ). The catalytic conversion of vitamin C magnesium phosphate produces ascorbic acid (AA). Upon being illuminated, AA can react with photogenerated holes from ZnS/C/MoS2 nanocomposites to generate a photocurrent for quantitative assay. Under optimized experimental conditions, the PEC immunosensor exhibits excellent analytical characteristics with a linear range from 2.0 pg mL-1 to 10.0 ng mL-1 and a detection limit of 1.30 pg mL-1 (S/N = 3). The outstanding practicability of this PEC immunosensor is demonstrated by accurate assaying of CEA in clinical serum samples.
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Affiliation(s)
- Qiuxi Wei
- Key Laboratory of Analytical Chemistry of the State Ethnic Affairs Commission, College of Chemistry and Materials Science, South-Central University for Nationalities, Wuhan, 430074, China
| | - Chen Wang
- Key Laboratory of Analytical Chemistry of the State Ethnic Affairs Commission, College of Chemistry and Materials Science, South-Central University for Nationalities, Wuhan, 430074, China
| | - Ping Li
- Key Laboratory of Analytical Chemistry of the State Ethnic Affairs Commission, College of Chemistry and Materials Science, South-Central University for Nationalities, Wuhan, 430074, China
| | - Tsunghsueh Wu
- Department of Chemistry, University of Wisconsin-Platteville, 1 University Plaza, Platteville, WI, 53818-3099, USA
| | - Nianjun Yang
- Institute of Materials Engineering, University of Siegen, Siegen, 57076, Germany
| | - Xing Wang
- Key Laboratory of Analytical Chemistry of the State Ethnic Affairs Commission, College of Chemistry and Materials Science, South-Central University for Nationalities, Wuhan, 430074, China
| | - Yanying Wang
- Key Laboratory of Analytical Chemistry of the State Ethnic Affairs Commission, College of Chemistry and Materials Science, South-Central University for Nationalities, Wuhan, 430074, China
| | - Chunya Li
- Key Laboratory of Analytical Chemistry of the State Ethnic Affairs Commission, College of Chemistry and Materials Science, South-Central University for Nationalities, Wuhan, 430074, China
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Huang Y, Ren J, Qu X. Nanozymes: Classification, Catalytic Mechanisms, Activity Regulation, and Applications. Chem Rev 2019; 119:4357-4412. [PMID: 30801188 DOI: 10.1021/acs.chemrev.8b00672] [Citation(s) in RCA: 1387] [Impact Index Per Article: 277.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Because of the high catalytic activities and substrate specificity, natural enzymes have been widely used in industrial, medical, and biological fields, etc. Although promising, they often suffer from intrinsic shortcomings such as high cost, low operational stability, and difficulties of recycling. To overcome these shortcomings, researchers have been devoted to the exploration of artificial enzyme mimics for a long time. Since the discovery of ferromagnetic nanoparticles with intrinsic horseradish peroxidase-like activity in 2007, a large amount of studies on nanozymes have been constantly emerging in the next decade. Nanozymes are one kind of nanomaterials with enzymatic catalytic properties. Compared with natural enzymes, nanozymes have the advantages such as low cost, high stability and durability, which have been widely used in industrial, medical, and biological fields. A thorough understanding of the possible catalytic mechanisms will contribute to the development of novel and high-efficient nanozymes, and the rational regulations of the activities of nanozymes are of great significance. In this review, we systematically introduce the classification, catalytic mechanism, activity regulation as well as recent research progress of nanozymes in the field of biosensing, environmental protection, and disease treatments, etc. in the past years. We also propose the current challenges of nanozymes as well as their future research focus. We anticipate this review may be of significance for the field to understand the properties of nanozymes and the development of novel nanomaterials with enzyme mimicking activities.
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Affiliation(s)
- Yanyan Huang
- Laboratory of Chemical Biology and State Key Laboratory of Rare Earth Resource Utilization , Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun , Jilin 130022 , China.,College of Light Industry and Food Engineering , Nanjing Forestry University , Nanjing 210037 , China
| | - Jinsong Ren
- Laboratory of Chemical Biology and State Key Laboratory of Rare Earth Resource Utilization , Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun , Jilin 130022 , China
| | - Xiaogang Qu
- Laboratory of Chemical Biology and State Key Laboratory of Rare Earth Resource Utilization , Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun , Jilin 130022 , China
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Ren X, Lu P, Feng R, Zhang T, Zhang Y, Wu D, Wei Q. An ITO-based point-of-care colorimetric immunosensor for ochratoxin A detection. Talanta 2018; 188:593-599. [DOI: 10.1016/j.talanta.2018.06.004] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Revised: 05/24/2018] [Accepted: 06/01/2018] [Indexed: 12/16/2022]
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Wang H, Sun Y, Yue W, Kang Q, Li H, Shen D. A smartphone-based double-channel fluorescence setup for immunoassay of a carcinoembryonic antigen using CuS nanoparticles for signal amplification. Analyst 2018; 143:1670-1678. [DOI: 10.1039/c7an01988b] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Sensitive detection of cancer biomarkers is valuable for clinical diagnosis and treatment assessment of cancers.
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Affiliation(s)
- Honghai Wang
- College of Chemistry
- Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Key Laboratory of MoleCular and Nano Probes
- Ministry of Education
| | - Yan Sun
- College of Chemistry
- Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Key Laboratory of MoleCular and Nano Probes
- Ministry of Education
| | - Weiwei Yue
- College of Chemistry
- Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Key Laboratory of MoleCular and Nano Probes
- Ministry of Education
| | - Qi Kang
- College of Chemistry
- Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Key Laboratory of MoleCular and Nano Probes
- Ministry of Education
| | - Huijuan Li
- College of Chemical and Environmental Engineering
- Shandong University of Science and Technology
- Qingdao
- P.R. China
| | - Dazhong Shen
- College of Chemistry
- Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Key Laboratory of MoleCular and Nano Probes
- Ministry of Education
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Affiliation(s)
- Jingwei Sun
- Department of Materials Chemistry; Huzhou University; Huzhou 313000 P.R. China
| | - Hao Sun
- Department of Chemical Engineering; Zhejiang University of Technology; Hangzhou 310014 P.R. China
| | - Ziqi Liang
- Department of Materials Science; Fudan University; Shanghai 200433 P.R. China
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Li Y, Khan MS, Tian L, Liu L, Hu L, Fan D, Cao W, Wei Q. An ultrasensitive electrochemical immunosensor for the detection of prostate-specific antigen based on conductivity nanocomposite with halloysite nanotubes. Anal Bioanal Chem 2017; 409:3245-3251. [PMID: 28251291 DOI: 10.1007/s00216-017-0266-1] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2016] [Revised: 01/01/2017] [Accepted: 02/17/2017] [Indexed: 12/25/2022]
Abstract
A sensitive label-free amperometric electrochemical immunosensor for detection of prostate-specific antigen (PSA) was proposed in this work. The nanocomposite of halloysite nanotubes with polypyrrole shell and palladium nanoparticles (HNTs@PPy-Pd) was used as a novel signal label. The HNTs with adequate hydroxyl groups are economically available raw materials. PPy, as an electrically conducting polymer material, can be absorbed to the surface of HNTs by in situ oxidative polymerization of the pyrrole monomer and form a shell on the HNTs. The shell of PPy could not only improve the conductivity of the nanocomposite but also absorb large amounts of Pd nanoparticles (NPs). The Pd NPs with high electrocatalytic activity toward the reduction of H2O2 and the HNTs@PPy-Pd nanocomposite as the analytical signal label could improve the sensitivity of the immunosensor. Under optimal conditions, the immunosensor showed a low detection limit (0.03 pg/mL) and a wide linear range (0.0001 to 25 ng/mL) of PSA. Moreover, its merits such as good selectivity, acceptable reproducibility, and stability indicate that the fabricated immunosensor has a promising application potential in clinical diagnosis. Graphical Abstract A new label-free amperometric electrochemical immunosensor based on HNTs@PPy-Pd nanocomposite for quantitative detection of PSA.
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Affiliation(s)
- Yueyuan Li
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong (University of Jinan), School of Chemistry and Chemical Engineering, University of Jinan, Jinan, Shandong, 250022, China
| | - Malik Saddam Khan
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong (University of Jinan), School of Chemistry and Chemical Engineering, University of Jinan, Jinan, Shandong, 250022, China
| | - Lihui Tian
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong (University of Jinan), School of Chemistry and Chemical Engineering, University of Jinan, Jinan, Shandong, 250022, China
| | - Li Liu
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong (University of Jinan), School of Chemistry and Chemical Engineering, University of Jinan, Jinan, Shandong, 250022, China
| | - Lihua Hu
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong (University of Jinan), School of Chemistry and Chemical Engineering, University of Jinan, Jinan, Shandong, 250022, China
| | - Dawei Fan
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong (University of Jinan), School of Chemistry and Chemical Engineering, University of Jinan, Jinan, Shandong, 250022, China
| | - Wei Cao
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong (University of Jinan), School of Chemistry and Chemical Engineering, University of Jinan, Jinan, Shandong, 250022, China.
| | - Qin Wei
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong (University of Jinan), School of Chemistry and Chemical Engineering, University of Jinan, Jinan, Shandong, 250022, China
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Xiang G, Wang X, Li MSM, Lac K, Wang S, Ding Z. Probing Excimers of Pt(II) Compounds with Phenyl-1,2,3-Triazolyl and Pyridyl-1,2,4-Triazolyl Chelate Ligands by Means of Electrochemiluminescence. ChemElectroChem 2017. [DOI: 10.1002/celc.201700059] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Guiming Xiang
- Department of Chemistry; University of Western Ontario; London, Ontario N6 A 5B7 Canada
| | - Xiang Wang
- Department Of Chemistry; Queen's University; Kingston, Ontario K7 L 3N6 Canada
| | - Michelle S. M. Li
- Department of Chemistry; University of Western Ontario; London, Ontario N6 A 5B7 Canada
| | - Kevin Lac
- Department of Chemistry; University of Western Ontario; London, Ontario N6 A 5B7 Canada
| | - Suning Wang
- Department Of Chemistry; Queen's University; Kingston, Ontario K7 L 3N6 Canada
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials; School of Chemistry; Beijing Institute of Technology; 5 South Zhongguancun Street Beijing P.R. China
| | - Zhifeng Ding
- Department of Chemistry; University of Western Ontario; London, Ontario N6 A 5B7 Canada
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Li R, Yang T, Li Z, Gu Z, Wang G, Liu J. Synthesis of palladium@gold nanoalloys/nitrogen and sulphur-functionalized multiple graphene aerogel for electrochemical detection of dopamine. Anal Chim Acta 2017; 954:43-51. [DOI: 10.1016/j.aca.2016.12.031] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Revised: 12/17/2016] [Accepted: 12/19/2016] [Indexed: 01/07/2023]
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Li X, Chen A, Chai Y, Yuan R. K-junction structure mediated exponential signal amplification strategy for microRNA detection in electrochemiluminescence biosensor. Analyst 2017; 142:2185-2190. [DOI: 10.1039/c7an00586e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Based on the novel designed K-junction structure, an economic and efficient exponential signal amplification strategy with simple protocol combining hemin/G-quadruplex, a mimetic peroxidase, as a catalyzer was proposed and utilized in an electrochemiluminescence biosensor for sensitive microRNA detection.
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Affiliation(s)
- Xue Li
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University)
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
| | - Anyi Chen
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University)
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
| | - 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
| | - 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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Ren LL, Dong H, Han TT, Chen Y, Ding SN. Enhanced anodic electrochemiluminescence of CdTe quantum dots based on electrocatalytic oxidation of a co-reactant by dendrimer-encapsulated Pt nanoparticles and its application for sandwiched immunoassays. Analyst 2017; 142:3934-3941. [DOI: 10.1039/c7an01231d] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A first immunosensor using Fe3O4@SiO2-Pt DENs for carrier separation and signal amplification in the CdTe QD-TPrA anodic ECL system.
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Affiliation(s)
- Lu-Lu Ren
- School of Chemistry and Chemical Engineering
- Southeast University
- Nanjing 211189
- China
| | - Hao Dong
- School of Chemistry and Chemical Engineering
- Southeast University
- Nanjing 211189
- China
| | - Ting-Ting Han
- School of Chemistry and Chemical Engineering
- Southeast University
- Nanjing 211189
- China
| | - Yun Chen
- Department of Immunology
- Nanjing Medical University
- Nanjing
- China
| | - Shou-Nian Ding
- School of Chemistry and Chemical Engineering
- Southeast University
- Nanjing 211189
- China
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Zhang Y, Wei Q. The role of nanomaterials in electroanalytical biosensors: A mini review. J Electroanal Chem (Lausanne) 2016. [DOI: 10.1016/j.jelechem.2016.09.011] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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