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Krzyczmonik P, Klisowska M, Leniart A, Ranoszek-Soliwoda K, Surmacki J, Beton-Mysur K, Brożek-Płuska B. The Composite Material of (PEDOT-Polystyrene Sulfonate)/Chitosan-AuNPS-Glutaraldehyde/as the Base to a Sensor with Laccase for the Determination of Polyphenols. MATERIALS (BASEL, SWITZERLAND) 2023; 16:5113. [PMID: 37512387 PMCID: PMC10385068 DOI: 10.3390/ma16145113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 07/12/2023] [Accepted: 07/17/2023] [Indexed: 07/30/2023]
Abstract
The described research aimed to develop the properties of the conductive composite /poly(3,4-ethylenedioxy-thiophene-poly(4-lithium styrenesulfonic acid)/chitosan-AuNPs-glutaraldehyde/ (/PEDOT-PSSLi/chit-AuNPs-GA/) and to develop an electrochemical enzyme sensor based on this composite material and glassy carbon electrodes (GCEs). The composite was created via electrochemical production of an /EDOT-PSSLi/ layer on a glassy carbon electrode (GCE). This layer was covered with a glutaraldehyde cross-linked chitosan and doped with AuNPs. The influence of AuNPs on the increase in the electrical conductivity of the chitosan layers and on facilitating the oxidation of polyphenols in these layers was demonstrated. The enzymatic sensor was obtained via immobilization of the laccase on the surface of the composite, with glutaraldehyde as the linker. The investigation of the surface morphology of the GCE/PEDOT-PSSLi/chit-AuNPs-GA/Laccase sensor was carried out using SEM and AFM microscopy. Using EDS and Raman spectroscopy, AuNPs were detected in the chitosan layer and in the laccase on the surface of the sensor. Polyphenols were determined using differential pulse voltammetry. The biosensor exhibited catalytic activity toward the oxidation of polyphenols. It has been shown that laccase is regenerated through direct electron transfer between the sensor and the enzyme. The results of the DPV tests showed that the developed sensor can be used for the determination of polyphenols. The peak current was linearly proportional to the concentrations of catechol in the range of 2-90 μM, with a limit of detection (LOD) of 1.7 μM; to those of caffeic acid in the range of 2-90 μM, LOD = 1.9 μM; and to those of gallic acid in the range 2-18 μM, LOD = 1.7 μM. Finally, the research conducted in order to determine gallic acid in a natural sample, for which white wine was used, was described.
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Affiliation(s)
- Paweł Krzyczmonik
- Department of Inorganic and Analytical Chemistry, Faculty of Chemistry, University of Lodz, Tamka 12, 91-403 Lodz, Poland
| | - Marta Klisowska
- Department of Inorganic and Analytical Chemistry, Faculty of Chemistry, University of Lodz, Tamka 12, 91-403 Lodz, Poland
| | - Andrzej Leniart
- Department of Inorganic and Analytical Chemistry, Faculty of Chemistry, University of Lodz, Tamka 12, 91-403 Lodz, Poland
| | - Katarzyna Ranoszek-Soliwoda
- Department of Materials Technology and Chemistry, Faculty of Chemistry, University of Lodz, Pomorska 163 Street, 90-236 Lodz, Poland
| | - Jakub Surmacki
- Laboratory of Laser Molecular Spectroscopy, Faculty of Chemistry, Institute of Applied Radiation Chemistry, Lodz University of Technology, Wroblewskiego 15, 93-590 Lodz, Poland
| | - Karolina Beton-Mysur
- Laboratory of Laser Molecular Spectroscopy, Faculty of Chemistry, Institute of Applied Radiation Chemistry, Lodz University of Technology, Wroblewskiego 15, 93-590 Lodz, Poland
| | - Beata Brożek-Płuska
- Laboratory of Laser Molecular Spectroscopy, Faculty of Chemistry, Institute of Applied Radiation Chemistry, Lodz University of Technology, Wroblewskiego 15, 93-590 Lodz, Poland
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2
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Thapa K, Liu W, Wang R. Nucleic acid-based electrochemical biosensor: Recent advances in probe immobilization and signal amplification strategies. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2021; 14:e1765. [PMID: 34734485 DOI: 10.1002/wnan.1765] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 08/06/2021] [Accepted: 10/04/2021] [Indexed: 12/26/2022]
Abstract
With the increasing importance of accurate and early disease diagnosis and the development of personalized medicine, DNA-based electrochemical biosensor has attracted broad scientific and clinical interests in the past decades due to its unique hybridization specificity, fast response time, and potential for miniaturization. In order to achieve high detection sensitivity, the design of DNA electrochemical biosensors depends critically on the improvement of the accessibility of target molecules and the enhancement of signal readout. Here, we summarize the recent advances in DNA probe immobilization and signal amplification strategies with a special focus on DNA nanostructure-supported DNA probe immobilization method, which provides the opportunity to rationally control the distance between probes and keep them in upright confirmation, as well as the contribution of functional nanomaterials in enhancing the signal amplification. The next challenge of biosensors will be the fabrication of point-of-care devices for clinical testing. The advancement of multidisciplinary areas, including nanofabrication, material science, and biochemistry, has exhibited profound promise in achieving such portable sensing devices. This article is categorized under: Diagnostic Tools > Biosensing Diagnostic Tools > Diagnostic Nanodevices Biology-Inspired Nanomaterials > Nucleic Acid-Based Structures.
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Affiliation(s)
- Krishna Thapa
- Department of Chemistry, Missouri University of Science and Technology, Rolla, Missouri, USA
| | - Wenyan Liu
- Department of Chemistry, Missouri University of Science and Technology, Rolla, Missouri, USA.,Center for Research in Energy and Environment, Missouri University of Science and Technology, Rolla, Missouri, USA
| | - Risheng Wang
- Department of Chemistry, Missouri University of Science and Technology, Rolla, Missouri, USA
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Li S, Noroozifar M, Kerman K. Nanocomposite of ferricyanide-doped chitosan with multi-walled carbon nanotubes for simultaneous senary detection of redox-active biomolecules. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2019.113376] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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4
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Congur G, Eksin E, Erdem A. Chitosan modified graphite electrodes developed for electrochemical monitoring of interaction between daunorubicin and DNA. SENSING AND BIO-SENSING RESEARCH 2019. [DOI: 10.1016/j.sbsr.2018.100255] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
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Hlongwane GN, Dodoo-Arhin D, Wamwangi D, Daramola MO, Moothi K, Iyuke SE. DNA hybridisation sensors for product authentication and tracing: State of the art and challenges. SOUTH AFRICAN JOURNAL OF CHEMICAL ENGINEERING 2019. [DOI: 10.1016/j.sajce.2018.11.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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Zhou N, Yang L, Hu B, Song Y, He L, Chen W, Zhang Z, Liu Z, Lu S. Core–Shell Heterostructured CuFe@FeFe Prussian Blue Analogue Coupling with Silver Nanoclusters via a One-Step Bioinspired Approach: Efficiently Nonlabeled Aptasensor for Detection of Bleomycin in Various Aqueous Environments. Anal Chem 2018; 90:13624-13631. [DOI: 10.1021/acs.analchem.8b03850] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Nan Zhou
- Department of Orthopedics, The First Affiliated Hospital of Zhengzhou University,No. 1, Jianshe East Road, Zhengzhou 450052, People’s Republic of China
| | - Longyu Yang
- Henan Provincial Key Laboratory of Surface and Interface Science, Zhengzhou University of Light Industry,No. 136, Science Avenue, Zhengzhou 450001, People’s Republic of China
| | - Bin Hu
- Henan Provincial Key Laboratory of Surface and Interface Science, Zhengzhou University of Light Industry,No. 136, Science Avenue, Zhengzhou 450001, People’s Republic of China
| | - Yingpan Song
- Henan Provincial Key Laboratory of Surface and Interface Science, Zhengzhou University of Light Industry,No. 136, Science Avenue, Zhengzhou 450001, People’s Republic of China
| | - Linghao He
- Henan Provincial Key Laboratory of Surface and Interface Science, Zhengzhou University of Light Industry,No. 136, Science Avenue, Zhengzhou 450001, People’s Republic of China
| | - Weizhe Chen
- The Center of Quality Supervision and Inspection of Xuchang, Xuchang 461000, People’s Republic of China
| | - Zhihong Zhang
- Henan Provincial Key Laboratory of Surface and Interface Science, Zhengzhou University of Light Industry,No. 136, Science Avenue, Zhengzhou 450001, People’s Republic of China
| | - Zhongyi Liu
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450000, People’s Republic of China
| | - Siyu Lu
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450000, People’s Republic of China
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Slate AJ, Brownson DAC, Abo Dena AS, Smith GC, Whitehead KA, Banks CE. Exploring the electrochemical performance of graphite and graphene paste electrodes composed of varying lateral flake sizes. Phys Chem Chem Phys 2018; 20:20010-20022. [PMID: 30022207 DOI: 10.1039/c8cp02196a] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report the fabrication, characterisation (SEM/EDX, TEM, XRD, XPS and Raman spectroscopy) and electrochemical properties of graphite and graphene paste electrodes with varying lateral flake sizes. The fabricated paste electrodes are electrochemically analysed using both outer-sphere and inner-sphere redox probes, namely; hexaammineruthenium(iii) chloride, N,N,N',N'-tetramethyl-p-phenylenediamine (TMPD), potassium ferrocyanide(ii) and ammonium ferrous(ii) sulphate. Upon comparison of different graphite paste electrodes, a clear correlation between the lateral flake sizes (La), ranging from 1.5 mm-0.5 μm, and electrochemical activity (heterogeneous electron transfer (HET) kinetics) is evident, where an improvement in the HET is observed at smaller lateral flake sizes. We infer that the beneficial response evident when employing laterally smaller flakes is due to an increased number of edge plane like-sites/defects available upon the electrode surface, facilitating electron transfer. Interestingly, given that the overall lateral flake sizes of the graphenes utilised (10.0-1.3 μm) were significantly smaller than those studied previously, an improvement in HET kinetics was also evident with the reduction of lateral flake size; the extent to which is redox-probe dependent. Improvements are observed up to a distinct point, termed the 'lateral size threshold' (ca. ≤2 μm) where the electrochemical reversible limit is approached. Further support is provided from density functional theory (DFT), exploring the electronic structure (i.e. HOMO-LUMO) as a function of flake size, which demonstrates that the coverage of edge plane like-sites/defects comprising the geometric structure of the relatively small graphene flakes is such that effectively the entire flake has become electrochemically active. In this study, the importance of lateral flake size with respect to electrochemical reactivity at carbon-based electrodes has been demonstrated alongside a structural relationship upon HET performance, a phenomenon that has not previously been described in the literature. Such work is both highly important and informative for the field of electrochemistry and electrode performance, with potential implications in a plethora of areas, ranging from novel renewable energy sources to electroanalytical sensing platforms.
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Affiliation(s)
- Anthony J Slate
- Faculty of Science and Engineering, Manchester Metropolitan University, Chester Street, Manchester, M1 5GD, UK.
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8
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Chitosan: An undisputed bio-fabrication material for tissue engineering and bio-sensing applications. Int J Biol Macromol 2018; 110:110-123. [DOI: 10.1016/j.ijbiomac.2018.01.006] [Citation(s) in RCA: 107] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2017] [Revised: 12/19/2017] [Accepted: 01/02/2018] [Indexed: 12/31/2022]
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9
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Zhai X, Li Y, Li J, Yue C, Lei X. Electrochemical sensor for detection of hydrogen peroxide modified with prussian blue electrodeposition on nitrogen, phosphorus and sulfur co-doped porous carbons-chitosan. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 77:1242-1246. [DOI: 10.1016/j.msec.2016.11.106] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2016] [Revised: 11/23/2016] [Accepted: 11/25/2016] [Indexed: 11/30/2022]
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10
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Polymerization of PEDOT/PSS/Chitosan-Coated Electrodes for Electrochemical Bio-Sensing. COATINGS 2017. [DOI: 10.3390/coatings7070096] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Poly(3,4-ethylenedioxythiophene) (PEDOT) doped with poly (styrene sulfonate) (PSS) has a variety of chemical and biomedical applications. Additionally, chitosan has been extensively used in industrial and medical fields. However, whether chitosan could be incorporated into conducting polymers of PEDOT/PSS is not clear. In this study, the PEDOT/PSS/chitosan coatings were electrochemically polymerized on the surface of 0.5 mm platinum (Pt) electrodes and the properties of electrochemical cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) of the PEDOT/PSS/chitosan-coated electrodes were investigated. Furthermore, PEDOT/PSS/chitosan-coated electrodes used for electrochemical bio-sensing, using dexamethasone (Dex) as a model bio-sensing material, were examined. The results demonstrated that PEDOT/PSS/chitosan-coated electrodes were stable in phosphate-buffered saline (PBS) solution. The electrochemical CV curve areas, reflecting the charge delivery capacity, and the EIS of the PEDOT/PSS/chitosan-coated electrodes were sensitive to Dex, and the good linearity can be obtained between CV curve areas, the EIS and the concentration of Dex. In addition, electrochemical sensitivity of the PEDOT/PSS/chitosan-coated electrodes to Dex was much higher than ultraviolet (UV) spectroscopy detection. All these results revealed that the PEDOT/PSS/chitosan-coated electrodes can be electrochemical polymerized and used for electrochemical bio-sensing.
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11
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Tandel R, Teradal N, Satpati A, Jaldappagari S. Fabrication of the electrochemically reduced graphene oxide-bismuth nanoparticles composite and its analytical application for an anticancer drug gemcitabine. CHINESE CHEM LETT 2017. [DOI: 10.1016/j.cclet.2016.11.028] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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12
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YESIL MERVE, DONMEZ SONER, ARSLAN FATMA. Development of an electrochemical DNA biosensor for detection of specific Mycobacterium tuberculosis sequence based on poly(L-glutamic acid) modified electrode. J CHEM SCI 2016. [DOI: 10.1007/s12039-016-1159-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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13
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Sobolewski P, Piwowarczyk M, Fray ME. Polymer-Graphene Nanocomposite Materials for Electrochemical Biosensing. Macromol Biosci 2016; 16:944-57. [PMID: 27188816 DOI: 10.1002/mabi.201600081] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Revised: 04/19/2016] [Indexed: 12/21/2022]
Affiliation(s)
- Peter Sobolewski
- Division of Biomaterials and Microbiological Technologies; Polymer Institute; West Pomeranian University of Technology; Szczecin, 45 Piastów Ave 70-311 Szczecin Poland
| | - Magdalena Piwowarczyk
- Division of Biomaterials and Microbiological Technologies; Polymer Institute; West Pomeranian University of Technology; Szczecin, 45 Piastów Ave 70-311 Szczecin Poland
| | - Mirosława El Fray
- Division of Biomaterials and Microbiological Technologies; Polymer Institute; West Pomeranian University of Technology; Szczecin, 45 Piastów Ave 70-311 Szczecin Poland
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14
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Boujakhrout A, Jimenez-Falcao S, Martínez-Ruiz P, Sánchez A, Díez P, Pingarrón JM, Villalonga R. Novel reduced graphene oxide–glycol chitosan nanohybrid for the assembly of an amperometric enzyme biosensor for phenols. Analyst 2016; 141:4162-9. [DOI: 10.1039/c5an02640g] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A sensitive laccase biosensor for phenols based on a novel graphene oxide–glycol chitosan nanohybrid.
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Affiliation(s)
| | | | - Paloma Martínez-Ruiz
- Department of Organic Chemistry I
- Faculty of Chemistry
- Complutense University of Madrid
- 28040-Madrid
- Spain
| | - Alfredo Sánchez
- Department of Analytical Chemistry
- Complutense University of Madrid
- 28040-Madrid
- Spain
| | - Paula Díez
- Department of Analytical Chemistry
- Complutense University of Madrid
- 28040-Madrid
- Spain
| | - José M. Pingarrón
- Department of Analytical Chemistry
- Complutense University of Madrid
- 28040-Madrid
- Spain
- IMDEA Nanoscience
| | - Reynaldo Villalonga
- Department of Analytical Chemistry
- Complutense University of Madrid
- 28040-Madrid
- Spain
- IMDEA Nanoscience
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15
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Metters JP, Banks CE. Carbon Nanomaterials in Electrochemical Detection. ELECTROCHEMICAL STRATEGIES IN DETECTION SCIENCE 2015. [DOI: 10.1039/9781782622529-00229] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
This chapter overviews the use of carbon nanomaterials in the field of electroanalysis and considers why carbon-based nanomaterials are widely utilized and explores the current diverse range that is available to the practising electrochemist, which spans from carbon nanotubes to carbon nanohorns through to the recent significant attention given to graphene.
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Affiliation(s)
- Jonathan P. Metters
- Faculty of Science and Engineering, School of Science and the Environment, Division of Chemistry and Environmental Science, Manchester Metropolitan University Chester Street Manchester M15 GD UK
| | - Craig E. Banks
- Faculty of Science and Engineering, School of Science and the Environment, Division of Chemistry and Environmental Science, Manchester Metropolitan University Chester Street Manchester M15 GD UK
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16
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Liu T, Niu X, Shi L, Zhu X, Zhao H, Lana M. Electrocatalytic analysis of superoxide anion radical using nitrogen-doped graphene supported Prussian Blue as a biomimetic superoxide dismutase. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.07.155] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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17
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Kong B, Selomulya C, Zheng G, Zhao D. New faces of porous Prussian blue: interfacial assembly of integrated hetero-structures for sensing applications. Chem Soc Rev 2015. [PMID: 26214277 DOI: 10.1039/c5cs00397k] [Citation(s) in RCA: 144] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Prussian blue (PB), the oldest synthetic coordination compound, is a classic and fascinating transition metal coordination material. Prussian blue is based on a three-dimensional (3-D) cubic polymeric porous network consisting of alternating ferric and ferrous ions, which provides facile assembly as well as precise interaction with active sites at functional interfaces. A fundamental understanding of the assembly mechanism of PB hetero-interfaces is essential to enable the full potential applications of PB crystals, including chemical sensing, catalysis, gas storage, drug delivery and electronic displays. Developing controlled assembly methods towards functionally integrated hetero-interfaces with adjustable sizes and morphology of PB crystals is necessary. A key point in the functional interface and device integration of PB nanocrystals is the fabrication of hetero-interfaces in a well-defined and oriented fashion on given substrates. This review will bring together these key aspects of the hetero-interfaces of PB nanocrystals, ranging from structure and properties, interfacial assembly strategies, to integrated hetero-structures for diverse sensing.
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Affiliation(s)
- Biao Kong
- Department of Chemistry, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Laboratory of Advanced Materials, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, P. R. China.
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18
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Li F, Gan S, Han D, Niu L. Graphene-Based Nanohybrids for Advanced Electrochemical Sensing. ELECTROANAL 2015. [DOI: 10.1002/elan.201500217] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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19
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Li B, Pan G, Avent ND, Lowry RB, Madgett TE, Waines PL. Graphene electrode modified with electrochemically reduced graphene oxide for label-free DNA detection. Biosens Bioelectron 2015; 72:313-9. [PMID: 26002015 DOI: 10.1016/j.bios.2015.05.034] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2015] [Revised: 05/04/2015] [Accepted: 05/13/2015] [Indexed: 11/15/2022]
Abstract
A novel printed graphene electrode modified with electrochemically reduced graphene oxide was developed for the detection of a specific oligonucleotide sequence. The graphene oxide was immobilized onto the surface of a graphene electrode via π-π bonds and electrochemical reduction of graphene oxide was achieved by cyclic voltammetry. A much higher redox current was observed from the reduced graphene oxide-graphene double-layer electrode, a 42% and 36.7% increase, respectively, in comparison with that of a bare printed graphene or reduced graphene oxide electrode. The good electron transfer activity is attributed to a combination of the large number of electroactive sites in reduced graphene oxide and the high conductivity nature of graphene. The probe ssDNA was further immobilized onto the surface of the reduced graphene oxide-graphene double-layer electrode via π-π bonds and then hybridized with its target cDNA. The change of peak current due to the hybridized dsDNA could be used for quantitative sensing of DNA concentration. It has been demonstrated that a linear range from 10(-7)M to 10(-12)M is achievable for the detection of human immunodeficiency virus 1 gene with a detection limit of 1.58 × 10(-13)M as determined by three times standard deviation of zero DNA concentration.
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Affiliation(s)
- Bing Li
- Wolfson Nanomaterials & Devices Laboratory, Faculty of Science and Engineering, University of Plymouth, Devon PL4 8AA, UK; School of Biomedical and Healthcare Sciences, Plymouth University Peninsula Schools of Medicine and Dentistry, Plymouth University, Devon, PL4 8AA, UK.
| | - Genhua Pan
- Wolfson Nanomaterials & Devices Laboratory, Faculty of Science and Engineering, University of Plymouth, Devon PL4 8AA, UK; School of Biomedical and Healthcare Sciences, Plymouth University Peninsula Schools of Medicine and Dentistry, Plymouth University, Devon, PL4 8AA, UK
| | - Neil D Avent
- School of Biomedical and Healthcare Sciences, Plymouth University Peninsula Schools of Medicine and Dentistry, Plymouth University, Devon, PL4 8AA, UK
| | - Roy B Lowry
- School of Geography, Earth and Environmental Sciences, Faculty of Science and Egineering, University of Plymouth, Devon PL4 8AA, UK
| | - Tracey E Madgett
- School of Biomedical and Healthcare Sciences, Plymouth University Peninsula Schools of Medicine and Dentistry, Plymouth University, Devon, PL4 8AA, UK
| | - Paul L Waines
- School of Biomedical and Healthcare Sciences, Plymouth University Peninsula Schools of Medicine and Dentistry, Plymouth University, Devon, PL4 8AA, UK
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Yang Z, Anglès d'Auriac M, Goggins S, Kasprzyk-Hordern B, Thomas KV, Frost CG, Estrela P. A novel DNA biosensor using a ferrocenyl intercalator applied to the potential detection of human population biomarkers in wastewater. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2015; 49:5609-5617. [PMID: 25853680 DOI: 10.1021/acs.est.5b00637] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A new label-free electrochemical DNA (E-DNA) biosensor using a custom synthesized ferrocenyl (Fc) double-stranded DNA intercalator as a redox marker is presented. Single-stranded DNA (ssDNA) was co-immobilized on gold electrodes with 6-mecarpto-hexanol to control the surface density of the ssDNA probe, and hybridized with complementary DNA. The binding of the Fc intercalator to dsDNA was measured by differential pulse voltammetry. This new biosensor was optimized to allow the detection of single base pair mismatched sequences, able to detect as low as 10 pM target ssDNA with a dynamic range from 10 pM to 100 nM. DNA extracted from wastewater was analyzed by quantitative polymerase chain reaction targeting human-specific mitochondrial DNA (mtDNA). The aim of this approach is to enable the analysis of population biomarkers in wastewater for the evaluation of public health using wastewater-based epidemiology (WBE). The E-DNA biosensor was employed to detect human-specific mtDNA from wastewater before and after PCR amplification. The results demonstrate the feasibility of detecting human DNA biomarkers in wastewater using the developed biosensor, which may allow the further development of DNA population biomarkers for public health using WBE.
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Affiliation(s)
- Zhugen Yang
- †Department of Chemistry, University of Bath, Claverton Down, BA2 7AY, Bath, United Kingdom
- ‡Department of Electronic and Electrical Engineering, University of Bath, Claverton Down, BA2 7AY, Bath, United Kingdom
| | - Marc Anglès d'Auriac
- §Norwegian Institute for Water Research (NIVA), Gaustadalléen 21, 0349 Oslo, Norway
| | - Sean Goggins
- †Department of Chemistry, University of Bath, Claverton Down, BA2 7AY, Bath, United Kingdom
| | | | - Kevin V Thomas
- §Norwegian Institute for Water Research (NIVA), Gaustadalléen 21, 0349 Oslo, Norway
| | - Christopher G Frost
- †Department of Chemistry, University of Bath, Claverton Down, BA2 7AY, Bath, United Kingdom
| | - Pedro Estrela
- ‡Department of Electronic and Electrical Engineering, University of Bath, Claverton Down, BA2 7AY, Bath, United Kingdom
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21
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A sensitive glucose biosensor based on the abundant immobilization of glucose oxidase on hollow Pt nanospheres assembled on graphene oxide–Prussian Blue–PTC-NH2 nanocomposite film. J Electroanal Chem (Lausanne) 2015. [DOI: 10.1016/j.jelechem.2015.01.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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22
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Yang Y, Cao Y, Wang X, Fang G, Wang S. Prussian blue mediated amplification combined with signal enhancement of ordered mesoporous carbon for ultrasensitive and specific quantification of metolcarb by a three-dimensional molecularly imprinted electrochemical sensor. Biosens Bioelectron 2015; 64:247-54. [DOI: 10.1016/j.bios.2014.09.009] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2014] [Revised: 07/31/2014] [Accepted: 09/01/2014] [Indexed: 10/24/2022]
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23
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Donmez S, Arslan F, Arslan H. Sequence-specific label-free nucleic acid biosensor for the detection of the hepatitis C virus genotype 1a using a disposable pencil graphite electrode. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2015; 44:912-7. [PMID: 25619757 DOI: 10.3109/21691401.2014.998831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
In this paper, we demonstrate a simple, sensitive, inexpensive, disposable and label-free electrochemical nucleic acid biosensor for the detection of the hepatitis C virus genotype 1a (HCV1a). The nucleic acid biosensor was designed with the amino-linked inosine-substituted 20-mer probes, which were immobilized onto a disposable pencil graphite electrode (PGE) by covalent linking. The proposed nucleic acid biosensor was linear in the range of 0.05 and 0.75 μM, exhibiting a limit of detection of 54.9 nM. The single-stranded synthetic PCR product analogs of HCV1a were also detected with satisfactory results under optimal conditions, showing the potential application of this biosensor.
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Affiliation(s)
- Soner Donmez
- a Department of Chemistry , Faculty of Science and Art, Nevsehir Haci Bektas Veli University , Nevsehir , Turkey
| | - Fatma Arslan
- b Department of Chemistry , Faculty of Science, Gazi University , Ankara , Turkey
| | - Halit Arslan
- b Department of Chemistry , Faculty of Science, Gazi University , Ankara , Turkey
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Synthesis and utilisation of graphene for fabrication of electrochemical sensors. Talanta 2015; 131:424-43. [DOI: 10.1016/j.talanta.2014.07.019] [Citation(s) in RCA: 142] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2014] [Revised: 07/04/2014] [Accepted: 07/07/2014] [Indexed: 01/19/2023]
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25
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Gutierrez F, Comba FN, Gasnier A, Gutierrez A, Galicia L, Parrado C, Rubianes MD, Rivas GA. Graphene Paste Electrode: Analytical Applications for the Quantification of Dopamine, Phenolic Compounds and Ethanol. ELECTROANAL 2014. [DOI: 10.1002/elan.201400247] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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27
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Pineda S, Han ZJ, Ostrikov K. Plasma-Enabled Carbon Nanostructures for Early Diagnosis of Neurodegenerative Diseases. MATERIALS (BASEL, SWITZERLAND) 2014; 7:4896-4929. [PMID: 28788112 PMCID: PMC5455823 DOI: 10.3390/ma7074896] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/27/2014] [Revised: 06/18/2014] [Accepted: 06/20/2014] [Indexed: 12/13/2022]
Abstract
Carbon nanostructures (CNs) are amongst the most promising biorecognition nanomaterials due to their unprecedented optical, electrical and structural properties. As such, CNs may be harnessed to tackle the detrimental public health and socio-economic adversities associated with neurodegenerative diseases (NDs). In particular, CNs may be tailored for a specific determination of biomarkers indicative of NDs. However, the realization of such a biosensor represents a significant technological challenge in the uniform fabrication of CNs with outstanding qualities in order to facilitate a highly-sensitive detection of biomarkers suspended in complex biological environments. Notably, the versatility of plasma-based techniques for the synthesis and surface modification of CNs may be embraced to optimize the biorecognition performance and capabilities. This review surveys the recent advances in CN-based biosensors, and highlights the benefits of plasma-processing techniques to enable, enhance, and tailor the performance and optimize the fabrication of CNs, towards the construction of biosensors with unparalleled performance for the early diagnosis of NDs, via a plethora of energy-efficient, environmentally-benign, and inexpensive approaches.
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Affiliation(s)
- Shafique Pineda
- Plasma Nanoscience Centre Australia (PNCA), CSIRO Materials Science and Engineering, P.O. Box 218, Lindfield, NSW 2070, Australia.
- Plasma Nanoscience@Complex Systems, School of Physics, the University of Sydney, Sydney, NSW 2006, Australia.
| | - Zhao Jun Han
- Plasma Nanoscience Centre Australia (PNCA), CSIRO Materials Science and Engineering, P.O. Box 218, Lindfield, NSW 2070, Australia.
| | - Kostya Ostrikov
- Plasma Nanoscience Centre Australia (PNCA), CSIRO Materials Science and Engineering, P.O. Box 218, Lindfield, NSW 2070, Australia.
- Plasma Nanoscience@Complex Systems, School of Physics, the University of Sydney, Sydney, NSW 2006, Australia.
- School of Chemistry, Physics, and Mechanical Engineering, Queensland University of Technology, Brisbane, QLD 4000, Australia.
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Abstract
In recent years, graphene, the two-dimensional closely packed honeycomb carbon lattice, has been attracting much attention in the field of electrochemistry due to its intrinsic properties and merits. Efforts to create novel graphene based electrochemical biosensors have led to the establishment of effective strategies for diverse bioassays, from simple molecules to complex biotargets. In this Feature Article, we provide an overview of electrochemical biosensing with graphene related materials, and discuss the role of graphene in different sensing protocols.
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Affiliation(s)
- Youxing Fang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China.
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29
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Bai X, Shiu KK. Investigation of the optimal weight contents of reduced graphene oxide–gold nanoparticles composites and theirs application in electrochemical biosensors. J Electroanal Chem (Lausanne) 2014. [DOI: 10.1016/j.jelechem.2014.03.031] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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30
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Laccase–Prussian blue film–graphene doped carbon paste modified electrode for carbamate pesticides quantification. Biosens Bioelectron 2013; 47:292-9. [DOI: 10.1016/j.bios.2013.03.026] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2012] [Revised: 02/22/2013] [Accepted: 03/12/2013] [Indexed: 02/08/2023]
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31
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Luo LQ, Zhang Z, Ding YP, Deng DM, Zhu XL, Wang ZX. Label-free electrochemical impedance genosensor based on 1-aminopyrene/graphene hybrids. NANOSCALE 2013; 5:5833-5840. [PMID: 23695370 DOI: 10.1039/c3nr01237a] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
In this work, we proposed a novel simple protocol for preparing 1-aminopyrene/graphene (ApG) hybrids for fabricating label-free electrochemical impedance genosensor. Graphene, with the structure of a single-atom-thick sheet of sp(2)-bonded carbon atoms, was anchored to 1-aminopyrene (1-Ap) with the pyrenyl group viaπ-stacking interaction. The morphology, conductivity, and interaction of ApG hybrids were characterized by transmission electron microscopy (TEM), cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), UV-visible (UV-vis) and fluorescence spectra. The amino-substituted oligonucleotide probe was conjugated to 1-Ap by the cross-linker glutaraldehyde. The DNA hybridization reaction of oligonucleotide probe with target DNA was monitored by EIS. Under optimum conditions, the proposed biosensor exhibited high sensitivity and a low detection limit for detecting the complementary oligonucleotide. The target oligonucleotide could be quantified in a wide range of 1.0 × 10(-12) to 1.0 × 10(-8) M with good linearity (R = 0.9900) and low detection limit of 4.5 × 10(-13) M (S/N = 3).
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Affiliation(s)
- Li-Qiang Luo
- College of Sciences, Shanghai University, Shanghai 200444, PR China.
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32
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Zhang X, Gao F, Cai X, Zheng M, Gao F, Jiang S, Wang Q. Application of graphene-pyrenebutyric acid nanocomposite as probe oligonucleotide immobilization platform in a DNA biosensor. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2013; 33:3851-7. [PMID: 23910287 DOI: 10.1016/j.msec.2013.05.022] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2013] [Revised: 03/19/2013] [Accepted: 05/09/2013] [Indexed: 10/26/2022]
Abstract
A stable and uniform organic-inorganic nanocomposite that consists of graphene (GR) and pyrenebutyric acid (PBA) was obtained by ultrasonication, which was characterized by scanning electron microscopy (SEM) and UV-vis absorption spectra. The dispersion was dropped onto a gold electrode surface to obtain GR-PBA modified electrode (GR-PBA/Au). Electrochemical behaviors of the modified electrode were characterized by cyclic voltammetry and electrochemical impedance spectroscopy using [Fe(CN)6](3-/4-) as the electroactive probe. A novel DNA biosensor was constructed based on the covalent coupling of amino modified oligonucleotides with the carboxylic group on PBA. By using methylene blue (MB) as a redox-active hybridization indicator, the biosensor was applied to electrochemically detect the complementary sequence, and the results suggested that the peak currents of MB showed a good linear relationship with the logarithm values of target DNA concentrations in the range from 1.0×10(-15) to 5.0×10(-12) M with a detection limit of 3.8×10(-16) M. The selectivity experiment also showed that the biosensor can well distinguish the target DNA from the non-complementary sequences.
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Affiliation(s)
- Xuan Zhang
- Department of Chemistry and Environment Science, Fujian Province University Key Laboratory of Analytical Science, Zhangzhou Normal University, Zhangzhou 363000, PR China
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33
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Zhu C, Dong S. Energetic Graphene-Based Electrochemical Analytical Devices in Nucleic Acid, Protein and Cancer Diagnostics and Detection. ELECTROANAL 2013. [DOI: 10.1002/elan.201300056] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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34
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Suginta W, Khunkaewla P, Schulte A. Electrochemical Biosensor Applications of Polysaccharides Chitin and Chitosan. Chem Rev 2013; 113:5458-79. [DOI: 10.1021/cr300325r] [Citation(s) in RCA: 341] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Wipa Suginta
- Biochemistry and Electrochemistry
Research Unit, Schools
of Chemistry and Biochemistry, Institute of Science, Suranaree University of Technology, Nakhon Ratchasima
30000, Thailand
| | - Panida Khunkaewla
- Biochemistry and Electrochemistry
Research Unit, Schools
of Chemistry and Biochemistry, Institute of Science, Suranaree University of Technology, Nakhon Ratchasima
30000, Thailand
| | - Albert Schulte
- Biochemistry and Electrochemistry
Research Unit, Schools
of Chemistry and Biochemistry, Institute of Science, Suranaree University of Technology, Nakhon Ratchasima
30000, Thailand
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35
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Amperometric sensor based on a graphene/copper hexacyanoferrate nano-composite for highly sensitive electrocatalytic determination of captopril. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2013; 33:774-81. [DOI: 10.1016/j.msec.2012.11.001] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2012] [Revised: 10/21/2012] [Accepted: 11/01/2012] [Indexed: 11/18/2022]
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36
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Electrochemical biosensor based on reduced graphene oxide modified electrode with Prussian blue and poly(toluidine blue O) coating. Electrochim Acta 2013. [DOI: 10.1016/j.electacta.2012.11.086] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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37
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Analysis of the evolution of the detection limits of electrochemical DNA biosensors. Anal Bioanal Chem 2013; 405:3705-14. [DOI: 10.1007/s00216-012-6672-5] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2012] [Revised: 12/04/2012] [Accepted: 12/18/2012] [Indexed: 11/26/2022]
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38
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Yang T, Guan Q, Guo X, Meng L, Du M, Jiao K. Direct and freely switchable detection of target genes engineered by reduced graphene oxide-poly(m-aminobenzenesulfonic acid) nanocomposite via synchronous pulse electrosynthesis. Anal Chem 2013; 85:1358-66. [PMID: 23256634 DOI: 10.1021/ac3030009] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A novel one-step electrochemical synthesis of the reduced graphene oxide and poly(m-aminobenzenesulfonic acid, ABSA) nanocomposite (PABSA-rGNO) via pulse potentiostatic method (PPM) for direct and freely switchable detection of target genes is presented. Unlike most electrochemical preparation of hybrids based on rGNO and polymer, electrochemical synthesis of PABSA (during the pulse electropolymerization period of PPM) and electrochemical reduction of rGNO (during the resting period of PPM), in this paper, were alternately performed. The total progress synchronously resulted in PABSA-rGNO nanocomposite. This nanocomposite was characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray powder diffraction (XRD), Fourier Transform infrared spectroscopy (FT-IR), cyclic voltammetry (CV), and electrochemical impedance spectroscopy (EIS). The PABSA-rGNO nanocomposite integrated graphene (a single-atom thick, two-dimensional sheet of sp(2) bonded conjugated carbon) with PABSA (owning rich-conjugated structures, functional groups, and excellent electrochemical activity), which could serve as an ideal electrode material for biosensing and electrochemical cell, etc. As an example, the immobilization of the specific probe DNA was successfully conducted via the noncovalent method due to the π-π* interaction between conjugated nanocomposite and DNA bases. The hybridization between the probe DNA and target DNA induced the product dsDNA to be released from conjugated nanocomposite, accompanied with the self-signal regeneration of nanocomposite ("signal-on"). The self-signal changes served as a powerful tool for direct and freely switchable detection of different target genes, and the synergistic effect of PABSA-rGNO nanocomposite effectively improved the sensitivity for the target DNA detection.
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Affiliation(s)
- Tao Yang
- State Key Laboratory Base of Eco-chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
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39
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Ma H, Wu D, Cui Z, Li Y, Zhang Y, Du B, Wei Q. Graphene-Based Optical and Electrochemical Biosensors: A Review. ANAL LETT 2013. [DOI: 10.1080/00032719.2012.706850] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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40
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Figueiredo-Filho LCS, Brownson DAC, Gómez-Mingot M, Iniesta J, Fatibello-Filho O, Banks CE. Exploring the electrochemical performance of graphitic paste electrodes: graphene vs. graphite. Analyst 2013; 138:6354-64. [DOI: 10.1039/c3an00950e] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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41
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Zhu J, Chen M, He Q, Shao L, Wei S, Guo Z. An overview of the engineered graphene nanostructures and nanocomposites. RSC Adv 2013. [DOI: 10.1039/c3ra44621b] [Citation(s) in RCA: 169] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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42
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Nanomaterial-based functional scaffolds for amperometric sensing of bioanalytes. Anal Bioanal Chem 2012; 405:3431-48. [DOI: 10.1007/s00216-012-6606-2] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2012] [Revised: 11/15/2012] [Accepted: 11/23/2012] [Indexed: 11/25/2022]
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43
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44
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Zhang Y, Jiang W. Decorating graphene sheets with gold nanoparticles for the detection of sequence-specific DNA. Electrochim Acta 2012. [DOI: 10.1016/j.electacta.2012.03.136] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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45
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Fabrication of DNA electrochemical biosensor based on gold nanoparticles, locked nucleic acid modified hairpin DNA and enzymatic signal amplification. Electrochim Acta 2012. [DOI: 10.1016/j.electacta.2012.03.143] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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46
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Use of a chitosan–cadmium polymer as a redox hybridization indicator for CaMV35S promoter gene detection. J BIOACT COMPAT POL 2012. [DOI: 10.1177/0883911512440537] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
A water-soluble chitosan-coordinated cadmium polymer was synthesized, and its recognition of single-stranded and double-stranded DNA was investigated. The electrochemical analysis in the homogeneous solutions revealed that the chitosan-coordinated cadmium polymer association with a single stranded DNA was 48 times greater than with double-stranded DNA due to the different interaction with the two kinds of DNA. The surface-based electrochemically absorbed chitosan-coordinated cadmium polymer molecules were easily removed from the double-stranded DNA-modified electrode via rinsing but could not be removed from a single-stranded DNA-modified electrode. Based on this fact, the polymer was utilized as a redox indicator for DNA hybridization detection, as the polymer was able to recognize complementary, noncomplementary, and base-mismatched sequences with a low background interference. The target DNA sequence was quantified from 5.0 × 10-9 to 5.0 × 10-7 M with a detection limit of 4.2 × 10-9 M. The polymerase chain reaction amplification of DNA from the real sample of a kind of transgenically modified soybeans was also detected satisfactorily.
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Yang T, Huang D, Li Q, Zhang W, Jiao K. Synergistic Effect of MWNTs/CeO2/CHIT Film for Detection of CdSe Nanoparticle Labeled Sequence-Specific of 35S Promoter of Cauliflower Mosaic Virus Gene. ELECTROANAL 2012. [DOI: 10.1002/elan.201100507] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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48
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Gold nano particle decorated graphene core first generation PAMAM dendrimer for label free electrochemical DNA hybridization sensing. Biosens Bioelectron 2011; 31:406-12. [PMID: 22137059 DOI: 10.1016/j.bios.2011.11.001] [Citation(s) in RCA: 72] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2011] [Revised: 10/04/2011] [Accepted: 11/01/2011] [Indexed: 11/23/2022]
Abstract
A novel first generation (G1) poly(amidoamine) dendrimer (PAMAM) with graphene core (GG1PAMAM) was synthesized for the first time. Single layer of GG1PAMAM was immobilized covalently on mercaptopropionic acid (MPA) monolayer on Au transducer. This allows cost effective and easy deposition of single layer graphene on the Au transducer surface than the advanced vacuum techniques used in the literature. Au nano particles (17.5 nm) then decorated the GG1PAMAM and used for electrochemical DNA hybridization sensing. The sensor discriminates selectively and sensitively the complementary double stranded DNA (dsDNA, hybridized), non-complementary DNA (ssDNA, un-hybridized) and single nucleotide polymorphism (SNP) surfaces. Interactions of the MPA, GG1PAMAM and the Au nano particles were characterized by Ultra Violet (UV), Fourier Transform Infrared (FTIR), Raman spectroscopy (RS), Thermo gravimetric analysis (TGA), Scanning Electron Microscopy (SEM), Atomic Force Microscopy (AFM), Cyclic Voltmetric (CV), Impedance spectroscopy (IS) and Differntial Pulse Voltammetry (DPV) techniques. The sensor showed linear range 1×10(-6) to 1×10(-12) M with lowest detection limit 1 pM which is 1000 times lower than G1PAMAM without graphene core.
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Kuila T, Bose S, Khanra P, Mishra AK, Kim NH, Lee JH. Recent advances in graphene-based biosensors. Biosens Bioelectron 2011; 26:4637-48. [DOI: 10.1016/j.bios.2011.05.039] [Citation(s) in RCA: 1032] [Impact Index Per Article: 79.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2011] [Revised: 05/25/2011] [Accepted: 05/25/2011] [Indexed: 02/07/2023]
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50
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Guo S, Dong S. Graphene and its derivative-based sensing materials for analytical devices. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c1jm13228h] [Citation(s) in RCA: 105] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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