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Shaukat A, Chrouda A, Sadaf S, Alhamlan F, Eissa S, Zourob M. Cell-SELEX for aptamer discovery and its utilization in constructing electrochemical biosensor for rapid and highly sensitive detection of Legionella pneumophila serogroup 1. Sci Rep 2024; 14:14132. [PMID: 38898115 PMCID: PMC11187191 DOI: 10.1038/s41598-024-65075-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Accepted: 06/17/2024] [Indexed: 06/21/2024] Open
Abstract
This study introduces an innovative electrochemical aptasensor designed for the highly sensitive and rapid detection of Legionella pneumophila serogroup 1 (L. pneumophila SG1), a particularly virulent strain associated with Legionellosis. Employing a rigorous selection process utilizing cell-based systematic evolution of ligands by exponential enrichment (cell-SELEX), we identified new high-affinity aptamers specifically tailored for L. pneumophila SG1. The selection process encompassed ten rounds of cell-SELEX cycles with live L. pneumophila, including multiple counter-selection steps against the closely related Legionella sub-species. The dissociation constant (Kd) of the highest affinity sequence to L. pneumophila SG1 was measured at 14.2 nM, representing a ten-fold increase in affinity in comparison with the previously reported aptamers. For the development of electrochemical aptasensor, a gold electrode was modified with the selected aptamer through the formation of self-assembled monolayers (SAMs). The newly developed aptasensor exhibited exceptional sensitivity, and specificity in detecting and differentiating various Legionella sp., with a detection limit of 5 colony forming units (CFU)/mL and an insignificant/negligible cross-reactivity with closely related sub-species. Furthermore, the aptasensor effectively detected L. pneumophila SG1 in spiked water samples, demonstrating an appreciable recovery percentage. This study shows the potential of our aptamer-based electrochemical biosensor as a promising approach for detecting L. pneumophila SG1 in diverse environments.
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Affiliation(s)
- Aysha Shaukat
- Department of Chemistry, Alfaisal University, 11533, Riyadh, Kingdom of Saudi Arabia
- School of Biochemistry and Biotechnology, University of the Punjab, Lahore, Pakistan
| | - Amani Chrouda
- Department of Chemistry, Alfaisal University, 11533, Riyadh, Kingdom of Saudi Arabia
| | - Saima Sadaf
- School of Biochemistry and Biotechnology, University of the Punjab, Lahore, Pakistan
| | - Fatimah Alhamlan
- King Faisal Specialist Hospital and Research Center, Riyadh, Kingdom of Saudi Arabia
| | - Shimaa Eissa
- Department of Chemistry, Khalifa University of Science and Technology, 127788, Abu Dhabi, United Arab Emirates
- Center for Catalysis and Separations, Khalifa University of Science and Technology, 127788, Abu Dhabi, United Arab Emirates
| | - Mohammed Zourob
- Department of Chemistry, Alfaisal University, 11533, Riyadh, Kingdom of Saudi Arabia.
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2
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Sande MG, Ferreira D, Rodrigues JL, Melo LDR, Linke D, Silva CJ, Moreira FTC, Sales MGF, Rodrigues LR. Electrochemical Aptasensor for the Detection of the Key Virulence Factor YadA of Yersinia enterocolitica. BIOSENSORS 2022; 12:bios12080614. [PMID: 36005012 PMCID: PMC9405658 DOI: 10.3390/bios12080614] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 08/02/2022] [Accepted: 08/06/2022] [Indexed: 05/31/2023]
Abstract
New point-of-care (POC) diagnosis of bacterial infections are imperative to overcome the deficiencies of conventional methods, such as culture and molecular methods. In this study, we identified new aptamers that bind to the virulence factor Yersinia adhesin A (YadA) of Yersinia enterocolitica using cell-systematic evolution of ligands by exponential enrichment (cell-SELEX). Escherichia coli expressing YadA on the cell surface was used as a target cell. After eight cycles of selection, the final aptamer pool was sequenced by high throughput sequencing using the Illumina Novaseq platform. The sequencing data, analyzed using the Geneious software, was aligned, filtered and demultiplexed to obtain the key nucleotides possibly involved in the target binding. The most promising aptamer candidate, Apt1, bound specifically to YadA with a dissociation constant (Kd) of 11 nM. Apt1 was used to develop a simple electrochemical biosensor with a two-step, label-free design towards the detection of YadA. The sensor surface modifications and its ability to bind successfully and stably to YadA were confirmed by cyclic voltammetry, impedance spectroscopy and square wave voltammetry. The biosensor enabled the detection of YadA in a linear range between 7.0 × 104 and 7.0 × 107 CFU mL−1 and showed a square correlation coefficient >0.99. The standard deviation and the limit of detection was ~2.5% and 7.0 × 104 CFU mL−1, respectively. Overall, the results suggest that this novel biosensor incorporating Apt1 can potentially be used as a sensitive POC detection system to aid the diagnosis of Y. enterocolitica infections. Furthermore, this simple yet innovative approach could be replicated to select aptamers for other (bacterial) targets and to develop the corresponding biosensors for their detection.
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Affiliation(s)
- Maria G. Sande
- CEB—Centre of Biological Engineering, Universidade do Minho, Campus de Gualtar, 4710-057 Braga, Portugal
- LABBELS—Associate Laboratory, 4710-057 Braga, Portugal
| | - Débora Ferreira
- CEB—Centre of Biological Engineering, Universidade do Minho, Campus de Gualtar, 4710-057 Braga, Portugal
- LABBELS—Associate Laboratory, 4710-057 Braga, Portugal
| | - Joana L. Rodrigues
- CEB—Centre of Biological Engineering, Universidade do Minho, Campus de Gualtar, 4710-057 Braga, Portugal
- LABBELS—Associate Laboratory, 4710-057 Braga, Portugal
| | - Luís D. R. Melo
- CEB—Centre of Biological Engineering, Universidade do Minho, Campus de Gualtar, 4710-057 Braga, Portugal
- LABBELS—Associate Laboratory, 4710-057 Braga, Portugal
| | - Dirk Linke
- Section for Genetics and Evolutionary Biology, Department of Biosciences, University of Oslo, 0316 Oslo, Norway
| | - Carla J. Silva
- CENTI—Center for Nanotechnology and Smart Materials, Rua Fernando Mesquita 278, 4760-034 Vila Nova de Famalicão, Portugal
- CITEVE—Technological Center for the Textile and Clothing Industries of Portugal, Rua Fernando Mesquita 2785, 4760-034 Vila Nova de Famalicão, Portugal
| | - Felismina T. C. Moreira
- CEB—Centre of Biological Engineering, Universidade do Minho, Campus de Gualtar, 4710-057 Braga, Portugal
- LABBELS—Associate Laboratory, 4710-057 Braga, Portugal
- BioMark-CINTESIS/ISEP, School of Engineering, Polytechnic Institute of Porto, 4219-015 Porto, Portugal
| | - Maria Goreti F. Sales
- CEB—Centre of Biological Engineering, Universidade do Minho, Campus de Gualtar, 4710-057 Braga, Portugal
- LABBELS—Associate Laboratory, 4710-057 Braga, Portugal
- BioMark-CINTESIS/ISEP, School of Engineering, Polytechnic Institute of Porto, 4219-015 Porto, Portugal
| | - Ligia R. Rodrigues
- CEB—Centre of Biological Engineering, Universidade do Minho, Campus de Gualtar, 4710-057 Braga, Portugal
- LABBELS—Associate Laboratory, 4710-057 Braga, Portugal
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3
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A ratiometric electrochemical DNA-biosensor for detection of miR-141. Mikrochim Acta 2022; 189:213. [PMID: 35513513 DOI: 10.1007/s00604-022-05301-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Accepted: 03/30/2022] [Indexed: 10/18/2022]
Abstract
A sensitive biosensor for the detection of miR-141 has been constructed. The DNA-biosensor is prepared by first immobilizing the thiolated methylene blue-labeled hairpin capture probe (MB-HCP) on two-layer nanocomposite film graphene oxide-chitosan@ polyvinylpyrrolidone-gold nanourchin modified glassy carbon electrode. We used the hematoxylin as an electrochemical auxiliary indicator in the second stage to recognize DNA hybridization via the square wave voltammetry (SWV) responses that record the accumulated hematoxylin on electrode surfaces. The morphology and chemical composition of nanocomposite was characterized using TEM, FE-SEM, and FT-IR techniques. The preparation stages of the DNA-biosensor were screened by electrochemical impedance spectroscopy and cyclic voltammetry. The proposed DNA-biosensor can distinguish miR-141 from a non-complementary and mismatch sequence. A detection limit of 0.94 fM and a linear range of 2.0 -5.0 × 105 fM were obtained using SWV for miR-141 detection. The working potential for methylene blue and hematoxylin was -0.28 and + 0.15 V vs. Ag/AgCl, respectively. The developed biosensor can be successfully used in the early detection of non-small cell lung cancer (NSCLC) by directly measuring miR-141 in human plasma samples. This novel DNA-biosensor is of promise in early sensitive clinical diagnosis of cancers with miR-141 as its biomarker.
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4
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Parchekani J, Hashemzadeh H, Allahverdi A, Siampour H, Abbasian S, Moshaii A, Naderi-Manesh H. Zepto molar miRNA-21 detection in gold Nano-islands platform toward early cancer screening. SENSING AND BIO-SENSING RESEARCH 2021. [DOI: 10.1016/j.sbsr.2021.100449] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
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5
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Li CP, Liu F, Zheng J, Zhao H. A novel electrochemical assay for chymosin determination using a label-free peptide as a substrate. J Dairy Sci 2021; 104:2511-2519. [PMID: 33455776 DOI: 10.3168/jds.2020-19282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 10/26/2020] [Indexed: 11/19/2022]
Abstract
Chymosin is a predominant enzyme in rennet and is used in cheese production because of its excellent milk-clotting activity. Herein, we proposed a facile and label-free electrochemical method for determining chymosin activity based on a peptide-based enzyme substrate. The synthesized substrate peptide for chymosin was assembled onto the surface of the Au-deposited grassy carbon electrode. The current was proportional to chymosin activity, and thus chymosin activity could be determined. The detection ranges of chymosin activity were 2.5 to 25 U mL-1. The detection limit of chymosin activity was 0.8 U mL-1. The sensing platform was used to quantify chymosin activity in commercial rennet with high selectivity, excellent stability, and satisfactory reproducibility. We developed a facile, fast, and effective electrochemical assay for detecting chymosin activity, which has potential applications in cheesemaking.
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Affiliation(s)
- Can-Peng Li
- School of Chemical Science and Technology, Key Laboratory of Medicinal Chemistry for Natural Resource-Ministry of Education, Yunnan University, 2 North Cuihu Road, Kunming 650091, People's Republic of China.
| | - Feng Liu
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Life Sciences, Yunnan University, 2 North Cuihu Road, Kunming 650091, People's Republic of China
| | - Jing Zheng
- School of Chemical Science and Technology, Key Laboratory of Medicinal Chemistry for Natural Resource-Ministry of Education, Yunnan University, 2 North Cuihu Road, Kunming 650091, People's Republic of China
| | - Hui Zhao
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Life Sciences, Yunnan University, 2 North Cuihu Road, Kunming 650091, People's Republic of China.
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6
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Rebelo TSCR, Costa R, Brandão ATSC, Silva AF, Sales MGF, Pereira CM. Molecularly imprinted polymer SPE sensor for analysis of CA-125 on serum. Anal Chim Acta 2019; 1082:126-135. [PMID: 31472701 DOI: 10.1016/j.aca.2019.07.050] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 06/29/2019] [Accepted: 07/22/2019] [Indexed: 10/26/2022]
Abstract
Considering the high incidence level and mortality rate of ovarian cancer, particularly among the European female population, the carbohydrate antigen 125 (CA-125) was selected as the protein target for this study for the development of a MIP-based biosensor. This work presents the development of molecular imprinting polymers (MIPs) on gold electrode surface for CA-125 biomarker recognition. The preparation of the CA-125 imprinting was obtained by electropolymerization of pyrrole (Py) monomer in a gold electrode using cyclic voltammetry (CV) in order to obtain highly selective materials with great molecular recognition capability. The quantification of CA-125 biomarker was made through the comparison of two methods: electrochemical (square wave voltammetry -SWV) and optical transduction (surface plasmon resonance -SPR). SWV has been widely used in biological molecules analysis since it is a fast and sensitive technique. In turn, SPR is a non-destructive optical technique that provides high-quality analytical data of CA-125 biomarker interactions with MIP. Several analytical parameters, such as sensitivity, linear response interval, and detection limit were determined to proceed to the performance evaluation of the electrochemical and optical transduction used in the development of the CA-125 biosensor. The biosensor based in the electrochemical transduction was the one that presented the best analytical parameters, yielding a good selectivity and a detection limit (LOD) of 0.01 U/mL, providing a linear concentration range between 0.01 and 500 U/mL. This electrochemical biosensor was selected for the study and it was successfully applied in the CA-125 analysis in artificial serum samples with recovery rates ranging from 91 to 105% with an average relative error of 5.8%.
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Affiliation(s)
- Tânia S C R Rebelo
- Centro de Investigação Em Química da Universidade Do Porto, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade Do Porto, Porto, Portugal; BioMark/ISEP, Instituto Superior de Engenharia Do Porto, Porto, Portugal
| | - Renata Costa
- Centro de Investigação Em Química da Universidade Do Porto, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade Do Porto, Porto, Portugal
| | - Ana T S C Brandão
- Centro de Investigação Em Química da Universidade Do Porto, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade Do Porto, Porto, Portugal
| | - A Fernando Silva
- Centro de Investigação Em Química da Universidade Do Porto, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade Do Porto, Porto, Portugal
| | - M Goreti F Sales
- BioMark/ISEP, Instituto Superior de Engenharia Do Porto, Porto, Portugal
| | - Carlos M Pereira
- Centro de Investigação Em Química da Universidade Do Porto, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade Do Porto, Porto, Portugal.
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7
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A novel label-free strategy for the ultrasensitive miRNA-182 detection based on MoS 2/Ti 3C 2 nanohybrids. Biosens Bioelectron 2019; 137:45-51. [PMID: 31078839 DOI: 10.1016/j.bios.2019.04.059] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 04/26/2019] [Accepted: 04/30/2019] [Indexed: 02/07/2023]
Abstract
MicroRNAs (miRNAs) are regarded as a large variety of cancer-related biomarkers, and they have attracted wide attentions in recent years. In this work, a novel label-free strategy for the ultrasensitive detection of miRNA-182 (a typical biomarker for lung cancer) based on MoS2/Ti3C2 nanohybrids was suggested. Firstly, modified glassy carbon electrode (GCE) with massive active sites and good electronic conductivity was prepared for biosensing. Then, based on this platform a descent signal in differential pulse voltammetry (DPV) peak current could be observed with the addition of probe RNA with negative charge. Thereafter, with the hybridization of target miRNA-182 with immobilized probe RNA and the swelling-induced breakage of Au-S bonds between RNA and the electrode surface, the characteristic DPV signals increase were found. In particular, this biosensing platform for special miRNAs possessed a good linear detection window in a range from 1 fM to 0.1 nM with a detection limit of 0.43 fM.
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8
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Akbarnia A, Zare HR. A voltammetric assay for microRNA-25 based on the use of amino-functionalized graphene quantum dots and ss- and ds-DNAs as gene probes. Mikrochim Acta 2018; 185:503. [DOI: 10.1007/s00604-018-3037-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Accepted: 10/01/2018] [Indexed: 11/29/2022]
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9
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Impedimetric genosensor for miRNA-34a detection in cell lysates using polypyrrole. J Solid State Electrochem 2017. [DOI: 10.1007/s10008-017-3819-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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10
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Shayeh JS, Sefidbakht Y, Siadat SOR, Niknam K. Continuous fast Fourier transforms cyclic voltammetry as a new approach for investigation of skim milk k-casein proteolysis, a comparative study. Int J Biol Macromol 2017; 103:972-977. [DOI: 10.1016/j.ijbiomac.2017.05.112] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2017] [Revised: 05/09/2017] [Accepted: 05/15/2017] [Indexed: 11/26/2022]
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11
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Increased electrocatalyzed performance through high content potassium doped graphene matrix and aptamer tri infinite amplification labels strategy: Highly sensitive for matrix metalloproteinases-2 detection. Biosens Bioelectron 2017; 94:694-700. [DOI: 10.1016/j.bios.2017.03.064] [Citation(s) in RCA: 90] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2017] [Revised: 03/09/2017] [Accepted: 03/30/2017] [Indexed: 02/04/2023]
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12
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Liu L, Zhang Y, Du R, Li J, Yu X. An ultrasensitive electrochemical immunosensor based on the synergistic effect of quaternary Cu2SnZnS4 NCs and cyclodextrin-functionalized graphene. Analyst 2017; 142:780-786. [DOI: 10.1039/c6an02538b] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cu2ZnSnS4 nanocrystals were first used as electrocatalysts for H2O2 reduction for the ultrasensitive detection of alpha-fetoprotein.
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Affiliation(s)
- Lei Liu
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes
- National Laboratory of Mineral Materials
- School of Materials Science and Technology
- China University of Geosciences
- Beijing
| | - Yihe Zhang
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes
- National Laboratory of Mineral Materials
- School of Materials Science and Technology
- China University of Geosciences
- Beijing
| | - Ruifeng Du
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes
- National Laboratory of Mineral Materials
- School of Materials Science and Technology
- China University of Geosciences
- Beijing
| | - Jinhong Li
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes
- National Laboratory of Mineral Materials
- School of Materials Science and Technology
- China University of Geosciences
- Beijing
| | - Xuelian Yu
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes
- National Laboratory of Mineral Materials
- School of Materials Science and Technology
- China University of Geosciences
- Beijing
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13
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Cardoso AR, Moreira FTC, Fernandes R, Sales MGF. Novel and simple electrochemical biosensor monitoring attomolar levels of miRNA-155 in breast cancer. Biosens Bioelectron 2016; 80:621-630. [PMID: 26901459 PMCID: PMC6366556 DOI: 10.1016/j.bios.2016.02.035] [Citation(s) in RCA: 105] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Revised: 02/08/2016] [Accepted: 02/13/2016] [Indexed: 12/21/2022]
Abstract
This work, describes for the first time, a simple biosensing design to yield an ultrasensitive electrochemical biosensor for a cancer biomarker detection, miRNA-155, with linear response down to the attomolar range. MiRNA-155 was selected for being overexpressed in breast cancer. The biosensor was assembled in two stages: (1) the immobilization of the anti-miRNA-155 that was thiol modified on an Au-screen printed electrode (Au-SPE), followed by (2) blocking the areas of non-specific binding with mercaptosuccinic acid. Atomic force microscopy (AFM) and electrochemical techniques including cyclic voltammetry (CV), impedance spectroscopy (EIS) and square wave voltammetry (SWV) confirmed the surface modification of these devices and their ability to hybridize successfully and stably with miRNA-155. The final biosensor provided a sensitive detection of miRNA-155 from 10 aM to 1.0 nM with a low detection limit (LOD) of 5.7 aM in real human serum samples. Good results were obtained in terms of selectivity towards breast cancer antigen CA-15.3 and bovine serum albumin (BSA). Raw fluid extracts from cell-lines of melanoma did not affect the biosensor response (no significant change of the blank), while raw extracts from breast cancer yielded a positive signal against miRNA-155. This simple and sensitive strategy is a promising alternative for simultaneous quantitative analysis of multiple miRNA in physiological fluids for biomedical research and point-of-care (POC) diagnosis.
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Affiliation(s)
- Ana R Cardoso
- BioMark-CINTESIS/ISEP, School of Engineering, Polytechnic Institute of Porto, Portugal; Molecular Mechanisms of Disease Unit, Centre of Research in Health and Environment (CISA), ESTSP-IPP, Portugal
| | - Felismina T C Moreira
- BioMark-CINTESIS/ISEP, School of Engineering, Polytechnic Institute of Porto, Portugal
| | - Rúben Fernandes
- Molecular Mechanisms of Disease Unit, Centre of Research in Health and Environment (CISA), ESTSP-IPP, Portugal; Metabolism, Nutrition and Endocrinology Unit, Integrative Cancer Programe, Instituto de Investigação e Inovação em Saúde (i3S), University of Porto, Portugal
| | - M Goreti F Sales
- BioMark-CINTESIS/ISEP, School of Engineering, Polytechnic Institute of Porto, Portugal.
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14
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Lu Y, Guo Z, Song JJ, Huang QA, Zhu SW, Huang XJ, Wei Y. Tunable nanogap devices for ultra-sensitive electrochemical impedance biosensing. Anal Chim Acta 2016; 905:58-65. [PMID: 26755137 DOI: 10.1016/j.aca.2015.11.036] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2014] [Accepted: 11/29/2015] [Indexed: 11/29/2022]
Abstract
A wealth of research has been available discussing nanogap devices for detecting very small quantities of biomolecules by observing their electrical behavior generally performed in dry conditions. We report that a gold nanogapped electrode with tunable gap length for ultra-sensitive detection of streptavidin based on electrochemical impedance technique. The gold nanogap is fabricated using simple monolayer film deposition and in-situ growth of gold nanoparticles in a traditional interdigitated array (IDA) microelectrode. The electrochemical impedance biosensor with a 25-nm nanogap is found to be ultra-sensitive to the specific binding of streptavidin to biotin. The binding of the streptavidin hinder the electron transfer between two electrodes, resulting in a large increase in electron-transfer resistance (Ret) for operating the impedance. A linear relation between the relative Ret and the logarithmic value of streptavidin concentration is observed in the concentration range from 1 pM (picomolar) to 100 nM (nanomolar). The lowest detectable concentration actually measured reaches 1 pM. We believe that such an electrochemical impedance nanogap biosensor provides a useful approach towards biomolecular detection that could be extended to a number of other systems.
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Affiliation(s)
- Yong Lu
- Department of Chemistry, Wannan Medical College, Wuhu 241002, PR China
| | - Zheng Guo
- Nanomaterials and Environmental Detection Laboratory, Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei 230031, PR China
| | - Jing-Jing Song
- Department of Chemistry, Wannan Medical College, Wuhu 241002, PR China
| | - Qin-An Huang
- Department of Chemistry, Wannan Medical College, Wuhu 241002, PR China
| | - Si-Wei Zhu
- Department of Chemistry, Wannan Medical College, Wuhu 241002, PR China
| | - Xing-Jiu Huang
- Nanomaterials and Environmental Detection Laboratory, Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei 230031, PR China
| | - Yan Wei
- Department of Chemistry, Wannan Medical College, Wuhu 241002, PR China.
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15
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Ren X, Wang H, Wu D, Fan D, Zhang Y, Du B, Wei Q. Ultrasensitive immunoassay for CA125 detection using acid site compound as signal and enhancer. Talanta 2015; 144:535-41. [PMID: 26452859 DOI: 10.1016/j.talanta.2015.06.086] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2015] [Revised: 06/25/2015] [Accepted: 06/28/2015] [Indexed: 02/07/2023]
Abstract
A novel sensitive electrochemical immunosensor was proposed for detection of CA125 based on ferrocenecarboxylic acid (FA), HCl-doped polyaniline (H-PANI) and chitosan hydrochloride (CS-HCl), which were used as substrate materials to generate signal and to enlarge specific surface area. The composite of these three materials (acid center compound, FA@H-PANI@CS-HCl) can be connected by hydrogen (H) in each molecule. Ag@Co3O4 nanosheets were used in the immunosensor to amplify the antibody capacity and to enhance the sensitivity of the immunoassay. This kind of sensor was novel, concise and it is the first time to be used in the detection of CA125. The biosensor exhibited low detection limit (0.25 pg/mL) and wide linear range (0.001-25 ng/mL). The stability, selectivity and reproducibility were acceptable. Serum sample analysis proved that the proposed sensor owned well precision and it might be used in potential clinic testing application in the future.
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Affiliation(s)
- Xiang Ren
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China
| | - Huan Wang
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China
| | - Dan Wu
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China
| | - Dawei Fan
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China
| | - Yong Zhang
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China
| | - Bin Du
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China.
| | - Qin Wei
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China
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16
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Ji L, Guo Z, Yan T, Ma H, Du B, Li Y, Wei Q. Ultrasensitive sandwich-type electrochemical immunosensor based on a novel signal amplification strategy using highly loaded palladium nanoparticles/carbon decorated magnetic microspheres as signal labels. Biosens Bioelectron 2015; 68:757-762. [DOI: 10.1016/j.bios.2015.02.010] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2014] [Revised: 01/31/2015] [Accepted: 02/06/2015] [Indexed: 11/25/2022]
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17
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Karimi Shervedani R, Samiei Foroushani M, Bagheri Dehaghi S. Functionalization of gold mercaptopropionic acid self-assembled monolayer with 5-amino-1,10-phenanthroline: Interaction with iron(II) and application for selective recognition of guanine. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.02.170] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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18
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Li Y, Han J, Chen R, Ren X, Wei Q. Label electrochemical immunosensor for prostate-specific antigen based on graphene and silver hybridized mesoporous silica. Anal Biochem 2015; 469:76-82. [DOI: 10.1016/j.ab.2014.09.022] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2014] [Revised: 09/24/2014] [Accepted: 09/30/2014] [Indexed: 10/24/2022]
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19
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Zhang S, Wang Y, Zhang Y, Yan T, Yan L, Wei Q, Du B. An ultrasensitive electrochemical immunosensor for determination of estradiol using coralloid Cu2S nanostructures as labels. RSC Adv 2015. [DOI: 10.1039/c4ra13066a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Ultrasensitive electrochemical immunoassay based on coralloid Cu2S nanostructure for determination of estradiol.
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Affiliation(s)
- Sen Zhang
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- P. R. China
| | - Yaoguang Wang
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- P. R. China
| | - Yunhui Zhang
- School of Resources and Environment
- University of Jinan
- Jinan 250022
- P. R. China
| | - Tao Yan
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- P. R. China
| | - Liangguo Yan
- School of Resources and Environment
- University of Jinan
- Jinan 250022
- P. R. China
| | - Qin Wei
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- P. R. China
| | - Bin Du
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- P. R. China
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20
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Nanosheet Au/Co3O4-based ultrasensitive nonenzymatic immunosensor for melanoma adhesion molecule antigen. Biosens Bioelectron 2014; 58:345-50. [DOI: 10.1016/j.bios.2014.03.010] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2013] [Revised: 03/04/2014] [Accepted: 03/04/2014] [Indexed: 01/28/2023]
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21
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Teixeira S, Conlan RS, Guy O, Sales MGF. Novel single-wall carbon nanotube screen-printed electrode as an immunosensor for human chorionic gonadotropin. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2014.05.105] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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22
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Novel sensory surface for creatine kinase electrochemical detection. Biosens Bioelectron 2014; 56:217-22. [DOI: 10.1016/j.bios.2013.12.052] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2013] [Revised: 12/22/2013] [Accepted: 12/23/2013] [Indexed: 11/22/2022]
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23
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Zhang S, Ma H, Yan L, Cao W, Yan T, Wei Q, Du B. Copper-doped titanium dioxide nanoparticles as dual-functional labels for fabrication of electrochemical immunosensors. Biosens Bioelectron 2014; 59:335-41. [PMID: 24747572 DOI: 10.1016/j.bios.2014.03.060] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2014] [Revised: 03/19/2014] [Accepted: 03/27/2014] [Indexed: 02/06/2023]
Abstract
Constructions of versatile electroactive labels are key issues in the development of electrochemical immunosensors. In this study, copper-doped titanium dioxide nanoparticle (Cu@TiO2) was synthesized and used as labels for fabrication of sandwich-type electrochemical immunosensors on glassy carbon electrode (GCE). Due to the presence of copper ions, Cu@TiO2 shows a strong response current when coupled to an electrode. The prepared nanocomposite also shows high electrocatalytic activity towards reduction of hydrogen peroxide (H2O2). The dual functionality of Cu@TiO2 enables the fabrication of immunosensor using different detection modes, that is, square wave voltammetry (SWV) or chronoamperometry (CA). While Cu@TiO2 was used as labels of secondary antibodies (Ab2), carboxyl functionalized graphene oxide (CFGO) was used as electrode materials to immobilize primary antibodies (Ab1). Using human immunoglobulin G (IgG) as a model analyte, the immunosensor shows high sensitivity, acceptable stability and good reproducibility for both detection modes. Under optimal conditions, a linear range from 0.1 pg/mL to 100 ng/mL with a detection limit of 0.052 pg/mL was obtained for SWV analysis. For CA analysis, a wider linear range from 0.01 pg/mL to 100 ng/mL and a lower detection limit of 0.0043 pg/mL were obtained. The proposed metal ion-based enzyme-free and noble metal-free immunosensor may have promising applications in clinical diagnoses and many other fields.
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Affiliation(s)
- Sen Zhang
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China; School of Resources and Environment, University of Jinan, Jinan 250022, PR China
| | - Hongmin Ma
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China
| | - Liangguo Yan
- School of Resources and Environment, University of Jinan, Jinan 250022, PR China
| | - Wei Cao
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China
| | - Tao Yan
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China
| | - Qin Wei
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China.
| | - Bin Du
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China
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24
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Ren X, Yan T, Zhang S, Zhang X, Gao P, Wu D, Du B, Wei Q. Ultrasensitive dual amplification sandwich immunosensor for breast cancer susceptibility gene based on sheet materials. Analyst 2014; 139:3061-8. [DOI: 10.1039/c4an00099d] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
A new electrochemical dual amplification sandwich immunosensor (DASI) was designed for ultrasensitive and accurate detection of the breast cancer susceptibility gene based on the combination of N-doped graphene, hydroxypropyl chitosan and Co3O4 mesoporous nanosheets.
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Affiliation(s)
- Xiang Ren
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022, P.R. China
| | - Tao Yan
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022, P.R. China
| | - Sen Zhang
- School of Resources and Environmental Sciences
- University of Jinan
- Jinan 250022, P.R. China
| | - Xiaoyue Zhang
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022, P.R. China
| | - Picheng Gao
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022, P.R. China
| | - Dan Wu
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022, P.R. China
| | - Bin Du
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022, P.R. China
- School of Resources and Environmental Sciences
| | - Qin Wei
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022, P.R. China
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25
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26
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Moreira FT, Sharma S, Dutra RA, Noronha JP, Cass AE, Sales MGF. Smart plastic antibody material (SPAM) tailored on disposable screen printed electrodes for protein recognition: Application to myoglobin detection. Biosens Bioelectron 2013; 45:237-44. [DOI: 10.1016/j.bios.2013.02.012] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2013] [Revised: 02/04/2013] [Accepted: 02/06/2013] [Indexed: 11/28/2022]
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27
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Feng R, Zhang Y, Ma H, Wu D, Fan H, Wang H, Li H, Du B, Wei Q. Ultrasensitive non-enzymatic and non-mediator electrochemical biosensor using nitrogen-doped graphene sheets for signal amplification and nanoporous alloy as carrier. Electrochim Acta 2013. [DOI: 10.1016/j.electacta.2013.02.093] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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28
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Feng R, Zhang Y, Yu H, Wu D, Ma H, Zhu B, Xu C, Li H, Du B, Wei Q. Nanoporous PtCo-based ultrasensitive enzyme-free immunosensor for zeranoldetection. Biosens Bioelectron 2013; 42:367-72. [DOI: 10.1016/j.bios.2012.10.031] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2012] [Revised: 10/08/2012] [Accepted: 10/08/2012] [Indexed: 10/27/2022]
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29
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Panagopoulou MA, Stergiou DV, Roussis IG, Panayotou G, Prodromidis MI. Kappa-casein based electrochemical and surface plasmon resonance biosensors for the assessment of the clotting activity of rennet. Anal Chim Acta 2012; 712:132-7. [DOI: 10.1016/j.aca.2011.11.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2011] [Revised: 10/26/2011] [Accepted: 11/02/2011] [Indexed: 11/17/2022]
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30
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Surface Imprinting Approach on Screen Printed Electrodes Coated with Carboxylated PVC for Myoglobin detection with Electrochemical Transduction. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/j.proeng.2012.09.284] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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31
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Lu X, Zhao D, Song Z, Wu B, Lu B, Zhou X, Xue Z. A valuable visual colorimetric and electrochemical biosensor for porphyrin. Biosens Bioelectron 2011; 27:172-7. [DOI: 10.1016/j.bios.2011.06.043] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2011] [Revised: 06/27/2011] [Accepted: 06/28/2011] [Indexed: 10/18/2022]
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