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Ramanavicius A, Morkvenaite-Vilkonciene I, Samukaite-Bubniene U, Petroniene JJ, Barkauskas J, Genys P, Ratautaite V, Viter R, Iatsunskyi I, Ramanaviciene A. Scanning electrochemical microscopy and electrochemical impedance spectroscopy-based characterization of perforated polycarbonate membrane modified by carbon-nanomaterials and glucose oxidase. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126822] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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2
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A supersensitive MSPQC bacterium sensor based on 16S rRNA and “DNA-RNA switch”. Biosens Bioelectron 2019; 138:111302. [DOI: 10.1016/j.bios.2019.05.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Revised: 04/25/2019] [Accepted: 05/03/2019] [Indexed: 12/18/2022]
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3
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Conzuelo F, Schulte A, Schuhmann W. Biological imaging with scanning electrochemical microscopy. Proc Math Phys Eng Sci 2018; 474:20180409. [PMID: 30839832 PMCID: PMC6237495 DOI: 10.1098/rspa.2018.0409] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2018] [Accepted: 09/04/2018] [Indexed: 12/27/2022] Open
Abstract
Scanning electrochemical microscopy (SECM) is a powerful and versatile technique for visualizing the local electrochemical activity of a surface as an ultramicroelectrode tip is moved towards or over a sample of interest using precise positioning systems. In comparison with other scanning probe techniques, SECM not only enables topographical surface mapping but also gathers chemical information with high spatial resolution. Considerable progress has been made in the analysis of biological samples, including living cells and immobilized biomacromolecules such as enzymes, antibodies and DNA fragments. Moreover, combinations of SECM with comple-mentary analytical tools broadened its applicability and facilitated multi-functional analysis with extended life science capabilities. The aim of this review is to present a brief topical overview on recent applications of biological SECM, with particular emphasis on important technical improvements of this surface imaging technique, recommended applications and future trends.
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Affiliation(s)
- Felipe Conzuelo
- Analytical Chemistry—Center for Electrochemical Sciences (CES), Faculty for Chemistry and Biochemistry, Ruhr-Universität Bochum, Universitätsstr. 150, 44780 Bochum, Germany
| | - Albert Schulte
- School of Biomolecular Science and Engineering (BSE), Vidyasirimedhi Institute of Science and Technology (VISTEC), Rayong 21210, Thailand
| | - Wolfgang Schuhmann
- Analytical Chemistry—Center for Electrochemical Sciences (CES), Faculty for Chemistry and Biochemistry, Ruhr-Universität Bochum, Universitätsstr. 150, 44780 Bochum, Germany
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4
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Dias JT, Svedberg G, Nystrand M, Andersson-Svahn H, Gantelius J. Rapid Nanoprobe Signal Enhancement by In Situ Gold Nanoparticle Synthesis. J Vis Exp 2018:57297. [PMID: 29578517 PMCID: PMC5931481 DOI: 10.3791/57297] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The use of nanoprobes such as gold, silver, silica or iron-oxide nanoparticles as detection reagents in bioanalytical assays can enable high sensitivity and convenient colorimetric readout. However, high densities of nanoparticles are typically needed for detection. The available synthesis-based enhancement protocols are either limited to gold and silver nanoparticles or rely on precise enzymatic control and optimization. Here, we present a protocol to enhance the colorimetric readout of gold, silver, silica, and iron oxide nanoprobes. It was observed that the colorimetric signal can be improved by up to a 10000-fold factor. The basis for such signal enhancement strategies is the chemical reduction of Au3+ to Au0. There are several chemical reactions that enable the reduction of Au3+ to Au0. In the protocol, Good's buffers and H2O2 are used and it is possible to favor the deposition of Au0 onto the surface of existing nanoprobes, in detriment of the formation of new gold nanoparticles. The protocol consists of the incubation of the microarray with a solution consisting of chloroauric acid and H2O2 in 2-(N-morpholino)ethanesulfonic acid pH 6 buffer following the nanoprobe-based detection assay. The enhancement solution can be applied to paper and glass-based sensors. Moreover, it can be used in commercially available immunoassays as demonstrated by the application of the method to a commercial allergen microarray. The signal development requires less than 5 min of incubation with the enhancement solution and the readout can be assessed by naked eye or low-end image acquisition devices such as a table-top scanner or a digital camera.
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Affiliation(s)
- Jorge T Dias
- Division of Proteomics and Nanobiotechnology, Science for Life Laboratory, KTH Royal Institute of Technology
| | - Gustav Svedberg
- Division of Proteomics and Nanobiotechnology, Science for Life Laboratory, KTH Royal Institute of Technology
| | - Mats Nystrand
- Global Research and Development, Thermo Fisher Scientific IDD
| | - Helene Andersson-Svahn
- Division of Proteomics and Nanobiotechnology, Science for Life Laboratory, KTH Royal Institute of Technology
| | - Jesper Gantelius
- Division of Proteomics and Nanobiotechnology, Science for Life Laboratory, KTH Royal Institute of Technology;
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5
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Rapid signal enhancement method for nanoprobe-based biosensing. Sci Rep 2017; 7:6837. [PMID: 28754966 PMCID: PMC5533771 DOI: 10.1038/s41598-017-07030-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Accepted: 06/21/2017] [Indexed: 02/05/2023] Open
Abstract
The introduction of nanomaterials as detection reagents has enabled improved sensitivity and facilitated detection in a variety of bioanalytical assays. However, high nanoprobe densities are typically needed for colorimetric detection and to circumvent this limitation several enhancement protocols have been reported. Nevertheless, there is currently a lack of universal, enzyme-free and versatile methods that can be readily applied to existing as well as new biosensing strategies. The novel method presented here is shown to enhance the signal of gold nanoparticles enabling visual detection of a spot containing <10 nanoparticles. Detection of Protein G on paper arrays was improved by a 100-fold amplification factor in under five minutes of assay time, using IgG-labelled gold, silver, silica and iron oxide nanoprobes. Furthermore, we show that the presented protocol can be applied to a commercial allergen microarray assay, ImmunoCAP ISAC sIgE 112, attaining a good agreement with fluorescent detection when analysing human clinical samples.
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Polcari D, Dauphin-Ducharme P, Mauzeroll J. Scanning Electrochemical Microscopy: A Comprehensive Review of Experimental Parameters from 1989 to 2015. Chem Rev 2016; 116:13234-13278. [PMID: 27736057 DOI: 10.1021/acs.chemrev.6b00067] [Citation(s) in RCA: 213] [Impact Index Per Article: 26.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- David Polcari
- Department
of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec Canada, H3A 0B8
| | - Philippe Dauphin-Ducharme
- Department
of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec Canada, H3A 0B8
| | - Janine Mauzeroll
- Department
of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec Canada, H3A 0B8
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7
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Rudolph D, Bates D, DiChristina TJ, Mizaikoff B, Kranz C. Detection of Metal-reducing Enzyme Complexes by Scanning Electrochemical Microscopy. ELECTROANAL 2016. [DOI: 10.1002/elan.201600333] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Douglas Rudolph
- School of Chemistry and Biochemistry; Georgia Institute of Technology; Atlanta GA 30332-0230 U.S.A
| | - David Bates
- School of Biology; Georgia Institute of Technology; Atlanta GA 30332-0230 U.S.A
| | | | - Boris Mizaikoff
- Institute of Analytical and Bioanalytical Chemistry; Ulm University; Albert-Einstein-Allee 11 89081 Ulm Germany
| | - Christine Kranz
- Institute of Analytical and Bioanalytical Chemistry; Ulm University; Albert-Einstein-Allee 11 89081 Ulm Germany
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9
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Lu X, Hu Y, Wang W, Du J, He H, Ai R, Liu X. A novel platform to study the photoinduced electron transfer at a dye-sensitized solid/liquid interface. Colloids Surf B Biointerfaces 2013; 103:608-14. [DOI: 10.1016/j.colsurfb.2012.11.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2012] [Revised: 09/22/2012] [Accepted: 11/08/2012] [Indexed: 10/27/2022]
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10
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Momotenko D, Qiao L, Cortés-Salazar F, Lesch A, Wittstock G, Girault HH. Electrochemical Push–Pull Scanner with Mass Spectrometry Detection. Anal Chem 2012; 84:6630-7. [DOI: 10.1021/ac300999v] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Dmitry Momotenko
- Laboratoire d’Electrochimie
Physique et Analytique, Ecole Polytechnique Fédérale de Lausanne, Station 6, CH-1015 Lausanne, Switzerland
| | - Liang Qiao
- Laboratoire d’Electrochimie
Physique et Analytique, Ecole Polytechnique Fédérale de Lausanne, Station 6, CH-1015 Lausanne, Switzerland
| | - Fernando Cortés-Salazar
- Laboratoire d’Electrochimie
Physique et Analytique, Ecole Polytechnique Fédérale de Lausanne, Station 6, CH-1015 Lausanne, Switzerland
| | - Andreas Lesch
- Department of Pure and Applied
Chemistry, Faculty of Mathematics and Natural Sciences, Carl von Ossietzky University of Oldenburg, D-26111
Oldenburg, Germany
| | - Gunther Wittstock
- Department of Pure and Applied
Chemistry, Faculty of Mathematics and Natural Sciences, Carl von Ossietzky University of Oldenburg, D-26111
Oldenburg, Germany
| | - Hubert H. Girault
- Laboratoire d’Electrochimie
Physique et Analytique, Ecole Polytechnique Fédérale de Lausanne, Station 6, CH-1015 Lausanne, Switzerland
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11
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Qin G, Zhang M, Zhang T, Zhang Y, McIntosh M, Li X, Zhang X. Label-Free Electrochemical Imaging of Latent Fingerprints on Metal Surfaces. ELECTROANAL 2012. [DOI: 10.1002/elan.201100694] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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12
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Lesch A, Momotenko D, Cortés-Salazar F, Wirth I, Tefashe UM, Meiners F, Vaske B, Girault HH, Wittstock G. Fabrication of soft gold microelectrode arrays as probes for scanning electrochemical microscopy. J Electroanal Chem (Lausanne) 2012. [DOI: 10.1016/j.jelechem.2011.12.005] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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13
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Cortés-Salazar F, Momotenko D, Girault HH, Lesch A, Wittstock G. Seeing Big with Scanning Electrochemical Microscopy. Anal Chem 2011; 83:1493-9. [DOI: 10.1021/ac101931d] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | | | - Andreas Lesch
- Carl von Ossietzky University of Oldenburg (Germany)
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14
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Cortés-Salazar F, Momotenko D, Lesch A, Wittstock G, Girault HH. Soft Microelectrode Linear Array for Scanning Electrochemical Microscopy. Anal Chem 2010; 82:10037-44. [DOI: 10.1021/ac1019304] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Fernando Cortés-Salazar
- Laboratoire d’Electrochimie Physique et Analytique, Ecole Polytechnique Fédérale de Lausanne, Station 6, CH-1015 Lausanne, Switzerland, and Department of Pure and Applied Chemistry, Center of Interface Science (CIS), Faculty of Mathematics and Natural Sciences, Carl von Ossietzky University of Oldenburg, D-26111 Oldenburg, Germany
| | - Dmitry Momotenko
- Laboratoire d’Electrochimie Physique et Analytique, Ecole Polytechnique Fédérale de Lausanne, Station 6, CH-1015 Lausanne, Switzerland, and Department of Pure and Applied Chemistry, Center of Interface Science (CIS), Faculty of Mathematics and Natural Sciences, Carl von Ossietzky University of Oldenburg, D-26111 Oldenburg, Germany
| | - Andreas Lesch
- Laboratoire d’Electrochimie Physique et Analytique, Ecole Polytechnique Fédérale de Lausanne, Station 6, CH-1015 Lausanne, Switzerland, and Department of Pure and Applied Chemistry, Center of Interface Science (CIS), Faculty of Mathematics and Natural Sciences, Carl von Ossietzky University of Oldenburg, D-26111 Oldenburg, Germany
| | - Gunther Wittstock
- Laboratoire d’Electrochimie Physique et Analytique, Ecole Polytechnique Fédérale de Lausanne, Station 6, CH-1015 Lausanne, Switzerland, and Department of Pure and Applied Chemistry, Center of Interface Science (CIS), Faculty of Mathematics and Natural Sciences, Carl von Ossietzky University of Oldenburg, D-26111 Oldenburg, Germany
| | - Hubert H. Girault
- Laboratoire d’Electrochimie Physique et Analytique, Ecole Polytechnique Fédérale de Lausanne, Station 6, CH-1015 Lausanne, Switzerland, and Department of Pure and Applied Chemistry, Center of Interface Science (CIS), Faculty of Mathematics and Natural Sciences, Carl von Ossietzky University of Oldenburg, D-26111 Oldenburg, Germany
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15
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Schulte A, Nebel M, Schuhmann W. Scanning electrochemical microscopy in neuroscience. ANNUAL REVIEW OF ANALYTICAL CHEMISTRY (PALO ALTO, CALIF.) 2010; 3:299-318. [PMID: 20636044 DOI: 10.1146/annurev.anchem.111808.073651] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
This article reviews recent work involving the application of scanning electrochemical microscopy (SECM) to the study of individual cultured living cells, with an emphasis on topographical and functional imaging of neuronal and secretory cells of the nervous and endocrine system. The basic principles of biological SECM and associated negative amperometric-feedback and generator/collector-mode SECM imaging are discussed, and successful use of the methodology for screening soft and fragile membranous objects is outlined. The drawbacks of the constant-height mode of probe movement and the benefits of the constant-distance mode of SECM operation are described. Finally, representative examples of constant-height and constant-distance mode SECM on a variety of live cells are highlighted to demonstrate the current status of single-cell SECM in general and of SECM in neuroscience in particular.
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Affiliation(s)
- Albert Schulte
- Institute of Science, Suranaree University of Technology, Nakhon Ratchasima, Thailand.
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16
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17
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Cortés-Salazar F, Träuble M, Li F, Busnel JM, Gassner AL, Hojeij M, Wittstock G, Girault HH. Soft Stylus Probes for Scanning Electrochemical Microscopy. Anal Chem 2009; 81:6889-96. [DOI: 10.1021/ac900887u] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Fernando Cortés-Salazar
- Laboratoire d’Electrochimie Physique et Analytique, Ecole Polytechnique Fédérale de Lausanne, Station 6, CH-1015 Lausanne, Switzerland, and Department of Pure and Applied Chemistry, Center of Interface Science (CIS), Faculty of Mathematics and Natural Sciences, Carl von Ossietzky University of Oldenburg, D-26111 Oldenburg, Germany
| | - Markus Träuble
- Laboratoire d’Electrochimie Physique et Analytique, Ecole Polytechnique Fédérale de Lausanne, Station 6, CH-1015 Lausanne, Switzerland, and Department of Pure and Applied Chemistry, Center of Interface Science (CIS), Faculty of Mathematics and Natural Sciences, Carl von Ossietzky University of Oldenburg, D-26111 Oldenburg, Germany
| | - Fei Li
- Laboratoire d’Electrochimie Physique et Analytique, Ecole Polytechnique Fédérale de Lausanne, Station 6, CH-1015 Lausanne, Switzerland, and Department of Pure and Applied Chemistry, Center of Interface Science (CIS), Faculty of Mathematics and Natural Sciences, Carl von Ossietzky University of Oldenburg, D-26111 Oldenburg, Germany
| | - Jean-Marc Busnel
- Laboratoire d’Electrochimie Physique et Analytique, Ecole Polytechnique Fédérale de Lausanne, Station 6, CH-1015 Lausanne, Switzerland, and Department of Pure and Applied Chemistry, Center of Interface Science (CIS), Faculty of Mathematics and Natural Sciences, Carl von Ossietzky University of Oldenburg, D-26111 Oldenburg, Germany
| | - Anne-Laure Gassner
- Laboratoire d’Electrochimie Physique et Analytique, Ecole Polytechnique Fédérale de Lausanne, Station 6, CH-1015 Lausanne, Switzerland, and Department of Pure and Applied Chemistry, Center of Interface Science (CIS), Faculty of Mathematics and Natural Sciences, Carl von Ossietzky University of Oldenburg, D-26111 Oldenburg, Germany
| | - Mohamad Hojeij
- Laboratoire d’Electrochimie Physique et Analytique, Ecole Polytechnique Fédérale de Lausanne, Station 6, CH-1015 Lausanne, Switzerland, and Department of Pure and Applied Chemistry, Center of Interface Science (CIS), Faculty of Mathematics and Natural Sciences, Carl von Ossietzky University of Oldenburg, D-26111 Oldenburg, Germany
| | - Gunther Wittstock
- Laboratoire d’Electrochimie Physique et Analytique, Ecole Polytechnique Fédérale de Lausanne, Station 6, CH-1015 Lausanne, Switzerland, and Department of Pure and Applied Chemistry, Center of Interface Science (CIS), Faculty of Mathematics and Natural Sciences, Carl von Ossietzky University of Oldenburg, D-26111 Oldenburg, Germany
| | - Hubert H. Girault
- Laboratoire d’Electrochimie Physique et Analytique, Ecole Polytechnique Fédérale de Lausanne, Station 6, CH-1015 Lausanne, Switzerland, and Department of Pure and Applied Chemistry, Center of Interface Science (CIS), Faculty of Mathematics and Natural Sciences, Carl von Ossietzky University of Oldenburg, D-26111 Oldenburg, Germany
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18
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Laforge FO, Velmurugan J, Wang Y, Mirkin MV. Nanoscale Imaging of Surface Topography and Reactivity with the Scanning Electrochemical Microscope. Anal Chem 2009; 81:3143-50. [DOI: 10.1021/ac900335c] [Citation(s) in RCA: 87] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- François O. Laforge
- Department of Chemistry and Biochemistry, Queens College−City University of New York, Flushing, New York 11367
| | - Jeyavel Velmurugan
- Department of Chemistry and Biochemistry, Queens College−City University of New York, Flushing, New York 11367
| | - Yixian Wang
- Department of Chemistry and Biochemistry, Queens College−City University of New York, Flushing, New York 11367
| | - Michael V. Mirkin
- Department of Chemistry and Biochemistry, Queens College−City University of New York, Flushing, New York 11367
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Takahashi Y, Miyamoto T, Shiku H, Asano R, Yasukawa T, Kumagai I, Matsue T. Electrochemical Detection of Epidermal Growth Factor Receptors on a Single Living Cell Surface by Scanning Electrochemical Microscopy. Anal Chem 2009; 81:2785-90. [DOI: 10.1021/ac900195m] [Citation(s) in RCA: 84] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Yasufumi Takahashi
- Graduate School of Environmental Studies, Tohoku University, Aramaki Aoba 6-6-11-605, Sendai 980-8579, Japan, Graduate School of Engineering Studies, Tohoku University, Aramaki, Aoba 6-6-11-607, Sendai 980-8579, Japan, and Graduate School of Material Science, University of Hyogo, 3-2-1 Kouto, Kamigori-cho, Ako-gun, Hyogo 678-1297, Japan
| | - Takeshi Miyamoto
- Graduate School of Environmental Studies, Tohoku University, Aramaki Aoba 6-6-11-605, Sendai 980-8579, Japan, Graduate School of Engineering Studies, Tohoku University, Aramaki, Aoba 6-6-11-607, Sendai 980-8579, Japan, and Graduate School of Material Science, University of Hyogo, 3-2-1 Kouto, Kamigori-cho, Ako-gun, Hyogo 678-1297, Japan
| | - Hitoshi Shiku
- Graduate School of Environmental Studies, Tohoku University, Aramaki Aoba 6-6-11-605, Sendai 980-8579, Japan, Graduate School of Engineering Studies, Tohoku University, Aramaki, Aoba 6-6-11-607, Sendai 980-8579, Japan, and Graduate School of Material Science, University of Hyogo, 3-2-1 Kouto, Kamigori-cho, Ako-gun, Hyogo 678-1297, Japan
| | - Ryutaro Asano
- Graduate School of Environmental Studies, Tohoku University, Aramaki Aoba 6-6-11-605, Sendai 980-8579, Japan, Graduate School of Engineering Studies, Tohoku University, Aramaki, Aoba 6-6-11-607, Sendai 980-8579, Japan, and Graduate School of Material Science, University of Hyogo, 3-2-1 Kouto, Kamigori-cho, Ako-gun, Hyogo 678-1297, Japan
| | - Tomoyuki Yasukawa
- Graduate School of Environmental Studies, Tohoku University, Aramaki Aoba 6-6-11-605, Sendai 980-8579, Japan, Graduate School of Engineering Studies, Tohoku University, Aramaki, Aoba 6-6-11-607, Sendai 980-8579, Japan, and Graduate School of Material Science, University of Hyogo, 3-2-1 Kouto, Kamigori-cho, Ako-gun, Hyogo 678-1297, Japan
| | - Izumi Kumagai
- Graduate School of Environmental Studies, Tohoku University, Aramaki Aoba 6-6-11-605, Sendai 980-8579, Japan, Graduate School of Engineering Studies, Tohoku University, Aramaki, Aoba 6-6-11-607, Sendai 980-8579, Japan, and Graduate School of Material Science, University of Hyogo, 3-2-1 Kouto, Kamigori-cho, Ako-gun, Hyogo 678-1297, Japan
| | - Tomokazu Matsue
- Graduate School of Environmental Studies, Tohoku University, Aramaki Aoba 6-6-11-605, Sendai 980-8579, Japan, Graduate School of Engineering Studies, Tohoku University, Aramaki, Aoba 6-6-11-607, Sendai 980-8579, Japan, and Graduate School of Material Science, University of Hyogo, 3-2-1 Kouto, Kamigori-cho, Ako-gun, Hyogo 678-1297, Japan
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Chen Z, Xie S, Shen L, Du Y, He S, Li Q, Liang Z, Meng X, Li B, Xu X, Ma H, Huang Y, Shao Y. Investigation of the interactions between silver nanoparticles and Hela cells by scanning electrochemical microscopy. Analyst 2008; 133:1221-8. [DOI: 10.1039/b807057a] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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23
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Zhang M, Becue A, Prudent M, Champod C, Girault HH. SECM imaging of MMD-enhanced latent fingermarks. Chem Commun (Camb) 2007:3948-50. [PMID: 17896042 DOI: 10.1039/b710947d] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Scanning electrochemical microscopy (SECM) has been used to image latent fingermarks enhanced by adsorption of gold nanoparticles onto which silver is chemically deposited, a process known as "multi-metal-deposition" (MMD).
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Affiliation(s)
- Meiqin Zhang
- Laboratoire d'Electrochimie Physique et Analytique, Ecole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
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