1
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Maroli G, Abarintos V, Piper A, Merkoçi A. The Cleanroom-Free, Cheap, and Rapid Fabrication of Nanoelectrodes with Low zM Limits of Detection. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2302136. [PMID: 37635265 DOI: 10.1002/smll.202302136] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 06/28/2023] [Indexed: 08/29/2023]
Abstract
Nanoscale electrodes have been a topic of intense research for many decades. Their enhanced sensitivities, born out of an improved signal-to-noise ratio as electrode dimensions decrease, make them ideal for the development of low-concentration analyte sensors. However, to date, nanoelectrode fabrication has typically required expensive equipment and exhaustive, time-consuming fabrication methods that have rendered them unsuitable for widespread use and commercialization. Herein, a method of nanoband electrode fabrication using low cost materials and equipment commonly found in research laboratories around the world is reported. The materials' cost to produce each nanoband is less than €0.01 and fabrication of a batch takes less than 1 h. The devices can be made of flexible plastics and their designs can be quickly and easily iterated. Facile methods of combining these nanobands into powerful devices, such as complete three-electrode systems, are also displayed. As a proof of concept, the electrodes are functionalized for the detection of a DNA sequence specific to SARS-CoV-2 and found to display single molecule sensitivity.
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Affiliation(s)
- Gabriel Maroli
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), UAB Campus, Bellaterra, Barcelona, 08193, Spain
- UIDI-CONICET Universidad Tecnológica Nacional, Buenos Aires, C1041AAJ, Argentina
| | - Vernalyn Abarintos
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), UAB Campus, Bellaterra, Barcelona, 08193, Spain
| | - Andrew Piper
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), UAB Campus, Bellaterra, Barcelona, 08193, Spain
| | - Arben Merkoçi
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), UAB Campus, Bellaterra, Barcelona, 08193, Spain
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2
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Karimian N, Campagnol D, Tormen M, Maria Stortini A, Canton P, Ugo P. Nanoimprinted Arrays of Glassy Carbon Nanoelectrodes for Improved Electrochemistry of Enzymatic Redox-Mediators. J Electroanal Chem (Lausanne) 2023. [DOI: 10.1016/j.jelechem.2023.117240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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3
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Longo S, De Leo L, Not T, Ugo P. Nanoelectrode ensemble immunosensor platform for the anodic detection of anti-tissue transglutaminase isotype IgA. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2021.115984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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4
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Liu Y, Li X, Chen J, Yuan C. Micro/Nano Electrode Array Sensors: Advances in Fabrication and Emerging Applications in Bioanalysis. Front Chem 2020; 8:573865. [PMID: 33324609 PMCID: PMC7726471 DOI: 10.3389/fchem.2020.573865] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Accepted: 10/26/2020] [Indexed: 01/24/2023] Open
Abstract
Due to the rapid development of micro/nano manufacturing techniques and the greater understanding in electrochemical principles and methods, micro/nano electrode array sensing has received much attention in recent years, especially in bioanalysis. This review aims to explore recent progress in innovative techniques for the construction of micro/nano electrode array sensor and the unique applications of various types of micro/nano electrode array sensors in biochemical analysis. Moreover, the new area of smart sensing benefited from miniaturization of portable micro/nano electrode array sensors as well as wearable intelligent devices are further discussed.
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Affiliation(s)
- Yang Liu
- Institute for Advanced Study, Shenzhen University, Shenzhen, China
- College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, China
| | - Xiuting Li
- Institute for Advanced Study, Shenzhen University, Shenzhen, China
| | - Jie Chen
- Institute for Advanced Study, Shenzhen University, Shenzhen, China
| | - Chonglin Yuan
- Institute for Advanced Study, Shenzhen University, Shenzhen, China
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5
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Zanut A, Cian A, Cefarin N, Pozzato A, Tormen M. Nanoelectrode Arrays Fabricated by Thermal Nanoimprint Lithography for Biosensing Application. BIOSENSORS 2020; 10:E90. [PMID: 32764306 PMCID: PMC7459808 DOI: 10.3390/bios10080090] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 07/27/2020] [Accepted: 07/31/2020] [Indexed: 06/11/2023]
Abstract
Electrochemical sensors are devices capable of detecting molecules and biomolecules in solutions and determining the concentration through direct electrical measurements. These systems can be miniaturized to a size less than 1 µm through the creation of small-size arrays of nanoelectrodes (NEA), offering advantages in terms of increased sensitivity and compactness. In this work, we present the fabrication of an electrochemical platform based on an array of nanoelectrodes (NEA) and its possible use for the detection of antigens of interest. NEAs were fabricated by forming arrays of nanoholes on a thin film of polycarbonate (PC) deposited on boron-doped diamond (BDD) macroelectrodes by thermal nanoimprint lithography (TNIL), which demonstrated to be a highly reliable and reproducible process. As proof of principle, gliadin protein fragments were physisorbed on the polycarbonate surface of NEAs and detected by immuno-indirect assay using a secondary antibody labelled with horseradish peroxidase (HRP). This method allows a successful detection of gliadin, in the range of concentration of 0.5-10 μg/mL, by cyclic voltammetry taking advantage from the properties of NEAs to strongly suppress the capacitive background signal. We demonstrate that the characteristics of the TNIL technology in the fabrication of high-resolution nanostructures together with their low-cost production, may allow to scale up the production of NEAs-based electrochemical sensing platform to monitor biochemical molecules for both food and biomedical applications.
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Affiliation(s)
- Alessandra Zanut
- Department of Physics, University of Trieste, P.le Europa 1, 34100 Trieste, Italy;
- IOM-CNR, TASC Laboratory, Area Science Park—Basovizza, S.S 14 Km 163.5, I-34149 Trieste, Italy;
| | - Alessandro Cian
- ThunderNIL srl, via Foscolo 8, I-35131 Padova, Italy; (A.C.); (A.P.)
- Center for Materials and Microsystems, Fondazione Bruno Kessler, 38123 Trento, Italy
| | - Nicola Cefarin
- Department of Physics, University of Trieste, P.le Europa 1, 34100 Trieste, Italy;
- IOM-CNR, TASC Laboratory, Area Science Park—Basovizza, S.S 14 Km 163.5, I-34149 Trieste, Italy;
| | | | - Massimo Tormen
- IOM-CNR, TASC Laboratory, Area Science Park—Basovizza, S.S 14 Km 163.5, I-34149 Trieste, Italy;
- ThunderNIL srl, via Foscolo 8, I-35131 Padova, Italy; (A.C.); (A.P.)
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6
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Eksin E, Senturk H, Zor E, Bingol H, Erdem A. Carbon quantum dot modified electrodes developed for electrochemical monitoring of Daunorubicin-DNA interaction. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.114011] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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7
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Piper A, Alston BM, Adams DJ, Mount AR. Functionalised microscale nanoband edge electrode (MNEE) arrays: the systematic quantitative study of hydrogels grown on nanoelectrode biosensor arrays for enhanced sensing in biological media. Faraday Discuss 2019; 210:201-217. [PMID: 30101263 DOI: 10.1039/c8fd00063h] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Nanoelectrodes and nanoelectrode arrays show enhanced diffusion and greater faradaic current densities and signal-to-noise ratios compared to macro and microelectrodes, which can lead to enhanced sensing and detection. One example is the microsquare nanoband edge electrode (MNEE) array system, readily formed through microfabrication and whose quantitative response has been established electroanalytically. Hydrogels have been shown to have applications in drug delivery, tissue engineering, and anti-biofouling; some also have the ability to be grown electrochemically. Here, we combine these two emerging technologies to demonstrate the principles of a hydrogel-coated nanoelectrode array biosensor that is resistant to biofouling. We first electrochemically grow and analyze hydrogels on MNEE arrays. The structure of these gels is shown by imaging to be electrochemically controllable, reproducible and structurally hierarchical. This structure is determined by the MNEE array diffusion fields, consistent with the established hydrogel formation reaction, and varies in structural scale from nano (early time, near electrode growth) to micro (for isolated elements in the array) to macro (when there is array overlap) with distance from the electrode, forming a hydrogel mesh of increasing density on progression from solution to electrode. There is also increased hydrogel structural density observed at electrode corners, attributable to enhanced diffusion. The resulting hydrogel structure can be formed on (and is firmly anchored to/through) an established clinically relevant biosensing layer without compromising detection. It is also shown to be capable, through proof-of-principle model protein studies using bovine serum albumin (BSA), of preventing protein biofouling whilst enabling smaller molecules such as DNA to pass through the hydrogel matrix and be sensed. Together, this demonstrates a method for developing reproducible, quantitative electrochemical nanoelectrode biosensors able to sense selectively in real-world sample matrices through the tuning of their interfacial properties.
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Affiliation(s)
- Andrew Piper
- EaSTCHEM, School of Chemistry, The University of Edinburgh, Joseph Black Building, King's Building's, David Brewster Road, Edinburgh, EH9 3FJ, UK.
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8
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Habtamu HB, Not T, De Leo L, Longo S, Moretto LM, Ugo P. Electrochemical Immunosensor Based on Nanoelectrode Ensembles for the Serological Analysis of IgG-type Tissue Transglutaminase. SENSORS 2019; 19:s19051233. [PMID: 30862087 PMCID: PMC6427579 DOI: 10.3390/s19051233] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2018] [Revised: 03/04/2019] [Accepted: 03/05/2019] [Indexed: 12/17/2022]
Abstract
Celiac disease (CD) is a gluten-dependent autoimmune disorder affecting a significant percentage of the general population, with increasing incidence particularly for children. Reliable analytical methods suitable for the serological diagnosis of the disorder are urgently required for performing both the early diagnosis and the follow-up of a patient adhering to a gluten-free diet. Herein we report on the preparation and application of a novel electrochemical immunosensor based on the use of ensembles of gold nanoelectrodes (NEEs) for the detection of anti-tissue transglutaminase (anti-tTG), which is considered one reliable serological marker for CD. To this end, we take advantage of the composite nature of the nanostructured surface of membrane-templated NEEs by functionalizing the polycarbonate surface of the track-etched membrane with tissue transglutaminase. Incubation of the functionalized NEE in anti-tTG samples results in the capture of the anti-tTG antibody. Confirmation of the recognition event is achieved by incubating the NEE with a secondary antibody labelled with horseradish peroxidase (HRP): in the presence of H2O2 as substrate and hydroquinone as redox mediator, an electrocatalytic current is indeed generated whose increment is proportional to the amount of anti-tTG captured from the sample. The optimized sensor allows a detection limit of 1.8 ng mL−1, with satisfactory selectivity and reproducibility. Analysis of serum samples from 28 individuals, some healthy and some affected by CD, furnished analytical results comparable with those achieved by classical fluoroenzyme immunoassay (FEIA). We note that the NEE-based immunosensor developed here detects the IgG isotype of anti-tTG, while FEIA detects the IgA isotype, which is not a suitable diagnostic marker for IgA-deficient patients.
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Affiliation(s)
- Henok B Habtamu
- Department of Molecular Sciences and Nanosystems, University Ca'Foscari of Venice, via Torino 155, 30172 Venezia Mestre, Italy.
| | - Tarcisio Not
- Institute for Maternal and Child Health - IRCCS "Burlo Garofolo", 34100 Trieste, Italy.
- Department of Medical, Surgical and Health Sciences, University of Trieste, 34100 Trieste, Italy.
| | - Luigina De Leo
- Institute for Maternal and Child Health - IRCCS "Burlo Garofolo", 34100 Trieste, Italy.
| | - Sara Longo
- Department of Molecular Sciences and Nanosystems, University Ca'Foscari of Venice, via Torino 155, 30172 Venezia Mestre, Italy.
| | - Ligia M Moretto
- Department of Molecular Sciences and Nanosystems, University Ca'Foscari of Venice, via Torino 155, 30172 Venezia Mestre, Italy.
| | - Paolo Ugo
- Department of Molecular Sciences and Nanosystems, University Ca'Foscari of Venice, via Torino 155, 30172 Venezia Mestre, Italy.
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9
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Kaniukov E, Shumskaya A, Yakimchuk D, Kozlovskiy A, Korolkov I, Ibragimova M, Zdorovets M, Kadyrzhanov K, Rusakov V, Fadeev M, Lobko E, Saunina К, Nikolaevich L. FeNi nanotubes: perspective tool for targeted delivery. APPLIED NANOSCIENCE 2018. [DOI: 10.1007/s13204-018-0762-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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10
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Nucleic acid-based electrochemical nanobiosensors. Biosens Bioelectron 2018; 102:479-489. [DOI: 10.1016/j.bios.2017.11.019] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Revised: 11/01/2017] [Accepted: 11/03/2017] [Indexed: 12/19/2022]
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11
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Bakhshpour M, Tamahkar E, Andaç M, Denizli A. Surface imprinted bacterial cellulose nanofibers for hemoglobin purification. Colloids Surf B Biointerfaces 2017; 158:453-459. [DOI: 10.1016/j.colsurfb.2017.07.023] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2017] [Revised: 07/06/2017] [Accepted: 07/07/2017] [Indexed: 01/26/2023]
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12
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Chavis AE, Brady KT, Hatmaker GA, Angevine CE, Kothalawala N, Dass A, Robertson JWF, Reiner JE. Single Molecule Nanopore Spectrometry for Peptide Detection. ACS Sens 2017; 2:1319-1328. [PMID: 28812356 PMCID: PMC11274829 DOI: 10.1021/acssensors.7b00362] [Citation(s) in RCA: 73] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Sensing and characterization of water-soluble peptides is of critical importance in a wide variety of bioapplications. Single molecule nanopore spectrometry (SMNS) is based on the idea that one can use biological protein nanopores to resolve different sized molecules down to limits set by the blockade duration and noise. Previous work has shown that this enables discrimination between polyethylene glycol (PEG) molecules that differ by a single monomer unit. This paper describes efforts to extend SMNS to a variety of biologically relevant, water-soluble peptides. We describe the use of Au25(SG)18 clusters, previously shown to improve PEG detection, to increase the on- and off-rate of peptides to the pore. In addition, we study the role that fluctuations play in the single molecule nanopore spectrometry (SMNS) methodology and show that modifying solution conditions to increase peptide flexibility (via pH or chaotropic salt) leads to a nearly 2-fold reduction in the current blockade fluctuations and a corresponding narrowing of the peaks in the blockade distributions. Finally, a model is presented that connects the current blockade depths to the mass of the peptides, which shows that our enhanced SMNS detection improves the mass resolution of the nanopore sensor more than 2-fold for the largest cationic peptides studied.
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Affiliation(s)
- Amy E. Chavis
- Department of Physics, Virginia Commonwealth University, Richmond, Virginia 23284, United States
| | - Kyle T. Brady
- Department of Physics, Virginia Commonwealth University, Richmond, Virginia 23284, United States
| | - Grace A. Hatmaker
- Department of Physics, Virginia Commonwealth University, Richmond, Virginia 23284, United States
| | - Christopher E. Angevine
- Department of Physics, Virginia Commonwealth University, Richmond, Virginia 23284, United States
| | - Nuwan Kothalawala
- Department of Chemistry and Biochemistry, University of Mississippi, University, Mississippi 38677, United States
| | - Amala Dass
- Department of Chemistry and Biochemistry, University of Mississippi, University, Mississippi 38677, United States
| | - Joseph W. F. Robertson
- Physical Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, Maryland 20899-8120, United States
| | - Joseph E. Reiner
- Department of Physics, Virginia Commonwealth University, Richmond, Virginia 23284, United States
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13
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Bertoncello P, Ugo P. Recent Advances in Electrochemiluminescence with Quantum Dots and Arrays of Nanoelectrodes. ChemElectroChem 2017. [DOI: 10.1002/celc.201700201] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Paolo Bertoncello
- College of Engineering; Swansea University; Bay Campus Swansea SA1 8EN United Kingdom
| | - Paolo Ugo
- Department of Molecular Sciences and Nanosystems; University Ca' Foscari Venice; via Torino 155 30172 Venezia-Mestre Italy
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14
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Karimian N, Moretto LM, Ugo P. Nanobiosensing with Arrays and Ensembles of Nanoelectrodes. SENSORS 2016; 17:s17010065. [PMID: 28042840 PMCID: PMC5298638 DOI: 10.3390/s17010065] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Revised: 12/26/2016] [Accepted: 12/27/2016] [Indexed: 01/01/2023]
Abstract
Since the first reports dating back to the mid-1990s, ensembles and arrays of nanoelectrodes (NEEs and NEAs, respectively) have gained an important role as advanced electroanalytical tools thank to their unique characteristics which include, among others, dramatically improved signal/noise ratios, enhanced mass transport and suitability for extreme miniaturization. From the year 2000 onward, these properties have been exploited to develop electrochemical biosensors in which the surfaces of NEEs/NEAs have been functionalized with biorecognition layers using immobilization modes able to take the maximum advantage from the special morphology and composite nature of their surface. This paper presents an updated overview of this field. It consists of two parts. In the first, we discuss nanofabrication methods and the principles of functioning of NEEs/NEAs, focusing, in particular, on those features which are important for the development of highly sensitive and miniaturized biosensors. In the second part, we review literature references dealing the bioanalytical and biosensing applications of sensors based on biofunctionalized arrays/ensembles of nanoelectrodes, focusing our attention on the most recent advances, published in the last five years. The goal of this review is both to furnish fundamental knowledge to researchers starting their activity in this field and provide critical information on recent achievements which can stimulate new ideas for future developments to experienced scientists.
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Affiliation(s)
- Najmeh Karimian
- Department of Molecular Sciences and Nanosystems, University Ca' Foscari of Venice, Via Torino 155-Mestre, 30172 Venice, Italy.
| | - Ligia M Moretto
- Department of Molecular Sciences and Nanosystems, University Ca' Foscari of Venice, Via Torino 155-Mestre, 30172 Venice, Italy.
| | - Paolo Ugo
- Department of Molecular Sciences and Nanosystems, University Ca' Foscari of Venice, Via Torino 155-Mestre, 30172 Venice, Italy.
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15
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Microscopic imaging and tuning of electrogenerated chemiluminescence with boron-doped diamond nanoelectrode arrays. Anal Bioanal Chem 2016; 408:7085-94. [DOI: 10.1007/s00216-016-9504-1] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2016] [Accepted: 03/18/2016] [Indexed: 12/31/2022]
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16
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Flaender M, Costa G, Nonglaton G, Saint-Pierre C, Gasparutto D. A DNA array based on clickable lesion-containing hairpin probes for multiplexed detection of base excision repair activities. Analyst 2016; 141:6208-6216. [DOI: 10.1039/c6an01165a] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
An electrophoresis-free fluorescent functional assay has been developed to measure DNA repair activities in a miniaturized and parallelized manner.
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Affiliation(s)
- Mélanie Flaender
- Université Grenoble Alpes
- INAC – SyMMES/CEA
- F-38000 Grenoble
- France
| | - Guillaume Costa
- Université Grenoble Alpes
- LETI/DTBS-SBSC/CEA
- F-38000 Grenoble
- France
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17
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Habtamu HB, Sentic M, Silvestrini M, De Leo L, Not T, Arbault S, Manojlovic D, Sojic N, Ugo P. A Sensitive Electrochemiluminescence Immunosensor for Celiac Disease Diagnosis Based on Nanoelectrode Ensembles. Anal Chem 2015; 87:12080-7. [DOI: 10.1021/acs.analchem.5b02801] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Henok B. Habtamu
- Department
of Molecular Sciences and Nanosystems, University Ca’Foscari of Venice, via Torino 155, 30172 Venezia Mestre, Italy
- Institut
des Sciences Moléculaires, CNRS UMR 5255, University of Bordeaux, ENSCBP, 33607 Pessac, France
| | - Milica Sentic
- Institut
des Sciences Moléculaires, CNRS UMR 5255, University of Bordeaux, ENSCBP, 33607 Pessac, France
- Faculty
of Chemistry, University of Belgrade, 11000 Belgrade, Serbia
| | - Morena Silvestrini
- Department
of Molecular Sciences and Nanosystems, University Ca’Foscari of Venice, via Torino 155, 30172 Venezia Mestre, Italy
| | - Luigina De Leo
- Institute for
Maternal and Child Health - IRCCS “Burlo Garofolo”, 34100 Trieste, Italy
| | - Tarcisio Not
- Institute for
Maternal and Child Health - IRCCS “Burlo Garofolo”, 34100 Trieste, Italy
- University of Trieste, 34127 Trieste, Italy
| | - Stephane Arbault
- Institut
des Sciences Moléculaires, CNRS UMR 5255, University of Bordeaux, ENSCBP, 33607 Pessac, France
| | - Dragan Manojlovic
- Faculty
of Chemistry, University of Belgrade, 11000 Belgrade, Serbia
| | - Neso Sojic
- Institut
des Sciences Moléculaires, CNRS UMR 5255, University of Bordeaux, ENSCBP, 33607 Pessac, France
| | - Paolo Ugo
- Department
of Molecular Sciences and Nanosystems, University Ca’Foscari of Venice, via Torino 155, 30172 Venezia Mestre, Italy
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18
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Habtamu HB, Ugo P. Miniaturized Enzymatic Biosensor via Biofunctionalization of the Insulator of Nanoelectrode Ensembles. ELECTROANAL 2015. [DOI: 10.1002/elan.201500115] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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19
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Gong Y, Chen X, Lu Y, Yang W. Self-assembled dipeptide–gold nanoparticle hybrid spheres for highly sensitive amperometric hydrogen peroxide biosensors. Biosens Bioelectron 2015; 66:392-8. [DOI: 10.1016/j.bios.2014.11.029] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2014] [Revised: 11/06/2014] [Accepted: 11/17/2014] [Indexed: 01/17/2023]
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20
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Wood M, Zhang B. Bipolar electrochemical method for dynamic in situ control of single metal nanowire growth. ACS NANO 2015; 9:2454-64. [PMID: 25695464 DOI: 10.1021/acsnano.5b00139] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Fabrication plays a key role in determining the unique electrical, optical, and catalytic properties of metal nanowires. Here we present a bipolar electrochemical method for dynamically monitoring and controlling the rate of single metal nanowire growth in situ without a direct electrical connection. Solutions of a metal precursor and a reducing agent are placed on either side of a silica nanochannel, and a pair of electrodes is used to apply a tunable electric potential across the channel. Metal nanowire growth is initiated by chemical reduction when the two solutions meet and continues until the nanochannel is blocked by the formation of a short metal wire segment. Further growth is driven by a bipolar electrochemical mechanism which enables the reduction of metal precursor ions at one end of the nanowire and the oxidation of the reducing agent at the other. The growth rate is monitored in real time by simultaneously recording both the faradaic current and optical microscope video and can be adjusted accordingly by changing the applied electric potential. The resulting nanowire is solid, electrically insulated, and can be used as a bipolar nanoelectrode. This technique can be extended to other electrochemical systems, as well, and provides a confined reaction space for studying the dynamics of any process that can be optically or electrically monitored.
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Affiliation(s)
- Marissa Wood
- Department of Chemistry, University of Washington, Seattle, Washington 98195, United States
| | - Bo Zhang
- Department of Chemistry, University of Washington, Seattle, Washington 98195, United States
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21
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Fátima Barroso M, Freitas M, Oliveira MBP, de-los-Santos-Álvarez N, Lobo-Castañón MJ, Delerue-Matos C. 3D-nanostructured Au electrodes for the event-specific detection of MON810 transgenic maize. Talanta 2015; 134:158-164. [DOI: 10.1016/j.talanta.2014.10.017] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2014] [Revised: 10/06/2014] [Accepted: 10/12/2014] [Indexed: 10/24/2022]
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22
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Meyer R, Giselbrecht S, Rapp BE, Hirtz M, Niemeyer CM. Advances in DNA-directed immobilization. Curr Opin Chem Biol 2014; 18:8-15. [DOI: 10.1016/j.cbpa.2013.10.023] [Citation(s) in RCA: 81] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2013] [Accepted: 10/01/2013] [Indexed: 12/18/2022]
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Bottari F, Oliveri P, Ugo P. Electrochemical immunosensor based on ensemble of nanoelectrodes for immunoglobulin IgY detection: Application to identify hen's egg yolk in tempera paintings. Biosens Bioelectron 2014; 52:403-10. [DOI: 10.1016/j.bios.2013.09.025] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2013] [Revised: 08/21/2013] [Accepted: 09/06/2013] [Indexed: 10/26/2022]
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Ongaro M, Ugo P. Sensor Arrays: Arrays of Micro- and Nanoelectrodes. ENVIRONMENTAL ANALYSIS BY ELECTROCHEMICAL SENSORS AND BIOSENSORS 2014. [DOI: 10.1007/978-1-4939-0676-5_20] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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Chen A, Chatterjee S. Nanomaterials based electrochemical sensors for biomedical applications. Chem Soc Rev 2013; 42:5425-38. [PMID: 23508125 DOI: 10.1039/c3cs35518g] [Citation(s) in RCA: 476] [Impact Index Per Article: 43.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A growing variety of sensors have increasingly significant impacts on everyday life. Key issues to take into consideration toward the integration of biosensing platforms include the demand for minimal costs and the potential for real time monitoring, particularly for point-of-care applications where simplicity must also be considered. In light of these developmental factors, electrochemical approaches are the most promising candidate technologies due to their simplicity, high sensitivity and specificity. The primary focus of this review is to highlight the utility of nanomaterials, which are currently being studied for in vivo and in vitro medical applications as robust and tunable diagnostic and therapeutic platforms. Highly sensitive and precise nanomaterials based biosensors have opened up the possibility of creating novel technologies for the early-stage detection and diagnosis of disease related biomarkers. The attractive properties of nanomaterials have paved the way for the fabrication of a wide range of electrochemical sensors that exhibit improved analytical capacities. This review aims to provide insights into nanomaterials based electrochemical sensors and to illustrate their benefits in various key biomedical applications. This emerging discipline, at the interface of chemistry and the life sciences, offers a broad palette of opportunities for researchers with interests that encompass nanomaterials synthesis, supramolecular chemistry, controllable drug delivery and targeted theranostics in biology and medicine.
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Affiliation(s)
- Aicheng Chen
- Department of Chemistry, Lakehead University, 955 Oliver Road, Thunder Bay, Ontario P7B 5E1, Canada.
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Ding L, Bond AM, Zhai J, Zhang J. Utilization of nanoparticle labels for signal amplification in ultrasensitive electrochemical affinity biosensors: A review. Anal Chim Acta 2013; 797:1-12. [DOI: 10.1016/j.aca.2013.07.035] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2013] [Revised: 07/08/2013] [Accepted: 07/14/2013] [Indexed: 12/11/2022]
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Abstract
Carboxyl-modified graphene materials in both oxide and reduced state were explored in parallel for the preparation of field-effect transistors (FET). They were solution gated by phosphate buffer solution (PBS) (pH 7.2). Their conductance were examined and compared with unmodified graphene transistors, firstly. Then, after single strand DNA molecules were immobilized on reduced and oxide graphene transistors, their conductance and compared. Here ssDNA molecules were amino-tagged at the terminal five. It was found that ambipolar characteristic was exhibited by reduced graphene transistors, even they were undergone carboxyl modification. And it was also discovered that there were opposite conductance variation with the increasing of ssDNA concentrations and bigger changes were obtained by reduced carboxyl-modified graphene transistors.
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Synergizing nucleic acid aptamers with 1-dimensional nanostructures as label-free field-effect transistor biosensors. Biosens Bioelectron 2013; 50:278-93. [PMID: 23872609 DOI: 10.1016/j.bios.2013.06.033] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2013] [Revised: 06/06/2013] [Accepted: 06/17/2013] [Indexed: 01/04/2023]
Abstract
Since the introduction by Gold et al. in 1990, nucleic acid aptamers had evolved to become a true contender in biosensors for protein and cell detections. Aptamers are short strands of synthetically designed DNA or RNA oligonucleotides that can be self-assembled into unique 3-dimensional structures and can bind to different proteins, cells or even small molecules at a high level of specificity and affinity. In recent years, there had been many reports in literature in using aptamers in place of conventional antibodies as capture biomolecules on the surface. This is mainly due to the better thermal stability properties and ease in production. Consequently, also these characteristics allowed the aptamers to find use in field effect transistors (FETs) based upon 1D nanostructured (1D-NS) as label-free biosensing. In terms of designing label-free platforms for biosensors applications, 1D-NS FET had been an attractive option due to reported high sensitivities toward protein targets arising from the large surface area for detection as well as to their label-free nature. Since the first aptamer-based 1D-NS FET biosensor had surfaced in 2005, there had been many more improvements in the overall design and sensitivity in recent years. In this review, the latest developments in synergizing these two interesting areas of research (aptamers and 1D-NS FET) will be discussed for a range of different nanowire types as well as for the detection results.
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29
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Hybridization detection of enzyme-labeled DNA at electrically heated electrodes. Anal Bioanal Chem 2013; 405:3907-11. [DOI: 10.1007/s00216-013-6815-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2012] [Revised: 01/11/2013] [Accepted: 02/01/2013] [Indexed: 10/27/2022]
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Ensembles of nanoelectrodes modified with gold nanoparticles: characterization and application to DNA-hybridization detection. Anal Bioanal Chem 2012; 405:995-1005. [DOI: 10.1007/s00216-012-6354-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2012] [Revised: 07/31/2012] [Accepted: 08/13/2012] [Indexed: 10/27/2022]
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