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Killedar LS, Vernekar PR, Shanbhag MM, Shetti NP, Malladi RS, Veerapur RS, Reddy KR. Fabrication of nanoclay-modified electrodes and their use as an effective electrochemical sensor for biomedical applications. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.118583] [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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2
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Sharma A, Bhardwaj J, Jang J. Label-Free, Highly Sensitive Electrochemical Aptasensors Using Polymer-Modified Reduced Graphene Oxide for Cardiac Biomarker Detection. ACS OMEGA 2020; 5:3924-3931. [PMID: 32149219 PMCID: PMC7057319 DOI: 10.1021/acsomega.9b03368] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Accepted: 02/05/2020] [Indexed: 05/24/2023]
Abstract
Acute myocardial infarction (AMI), also recognized as a "heart attack," is one leading cause of death globally, and cardiac myoglobin (cMb), an important cardiac biomarker, is used for the early assessment of AMI. This paper presents an ultrasensitive, label-free electrochemical aptamer-based sensor (aptasensor) for cMb detection using polyethylenimine (PEI)-functionalized reduced graphene oxide (PEI-rGO) thin films. PEI, a cationic polymer, was used as a reducing agent for graphene oxide (GO), providing highly positive charges on the rGO surface and allowing direct immobilization of negatively charged single-strand DNA aptamers against cMb via electrostatic interaction without any linker or coupling chemistry. The presence of cMb was detected on Mb aptamer-modified electrodes using differential pulse voltammetry via measuring the current change due to the direct electron transfer between the electrodes and cMb proteins (Fe3+/Fe2+). The limits of detection were 0.97 pg mL-1 (phosphate-buffered saline) and 2.1 pg mL-1 (10-fold-diluted human serum), with a linear behavior with logarithmic cMb concentration. The specificity and reproducibility of the aptasensors were also examined. This electrochemical aptasensor using polymer-modified rGO shows potential for the early assessment of cMb in point-of-care testing applications.
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Affiliation(s)
- Abhinav Sharma
- School
of Materials Science and Engineering, Ulsan
National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Jyoti Bhardwaj
- Department
of Biomedical Engineering, UNIST, Ulsan 44919, Republic of Korea
| | - Jaesung Jang
- Department
of Biomedical Engineering, UNIST, Ulsan 44919, Republic of Korea
- School
of Mechanical, Aerospace and Nuclear Engineering, UNIST, Ulsan 44919, Republic of Korea
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Mohammadniaei M, Park C, Min J, Sohn H, Lee T. Fabrication of Electrochemical-Based Bioelectronic Device and Biosensor Composed of Biomaterial-Nanomaterial Hybrid. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1064:263-296. [PMID: 30471039 PMCID: PMC7120487 DOI: 10.1007/978-981-13-0445-3_17] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The field of bioelectronics has paved the way for the development of biochips, biomedical devices, biosensors and biocomputation devices. Various biosensors and biomedical devices have been developed to commercialize laboratory products and transform them into industry products in the clinical, pharmaceutical, environmental fields. Recently, the electrochemical bioelectronic devices that mimicked the functionality of living organisms in nature were applied to the use of bioelectronics device and biosensors. In particular, the electrochemical-based bioelectronic devices and biosensors composed of biomolecule-nanoparticle hybrids have been proposed to generate new functionality as alternatives to silicon-based electronic computation devices, such as information storage, process, computations and detection. In this chapter, we described the recent progress of bioelectronic devices and biosensors based on biomaterial-nanomaterial hybrid.
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Affiliation(s)
- Mohsen Mohammadniaei
- Department of Chemical and Biomolecular Engineering, Sogang University, Seoul, South Korea
| | - Chulhwan Park
- Department of Chemical Engineering, Kwangwoon University, Seoul, South Korea
| | - Junhong Min
- School of Integrative Engineering Chung-Ang University, Seoul, South Korea
| | - Hiesang Sohn
- Department of Chemical Engineering, Kwangwoon University, Seoul, South Korea.
| | - Taek Lee
- Department of Chemical Engineering, Kwangwoon University, Seoul, South Korea.
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Nano molar detection of acyclovir, an antiviral drug at nanoclay modified carbon paste electrode. SENSING AND BIO-SENSING RESEARCH 2017. [DOI: 10.1016/j.sbsr.2017.04.004] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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Chen X, Wang Y, Chai R, Xu Y, Li H, Liu B. Luminescent Lanthanide-Based Organic/Inorganic Hybrid Materials for Discrimination of Glutathione in Solution and within Hydrogels. ACS APPLIED MATERIALS & INTERFACES 2017; 9:13554-13563. [PMID: 28350157 DOI: 10.1021/acsami.7b02679] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Glutathione (GSH) as a biothiol is an essential peptide related to various diseases. Although multiple strategies for biothiols detection have been developed, there is increasing demand for sensors that can differentiate GSH from cysteine (Cys) and homocysteine (Hcy), owing to the similar structures and thiol groups in these amino acids. Herein, we report a novel Eu3+/LAPONITE (Lap)-based organic/inorganic hybrid material for selective detection of GSH via an "off-on" process. The fluorescence of Eu(DPA)3@Lap-Tris can be quenched by Cu2+ through photoinduced electron transfer (PET). The addition of GSH into the Eu(DPA)3@Lap-Tris/Cu2+ system induces the removal of Cu2+ from Eu(DPA)3@Lap-Tris and blocks PET, resulting in the recovery of fluorescence. This proposed assay demonstrates higher selectivity toward GSH than Cys and Hcy, and showed a detection limit of 162 nM within a linear range of 0.5-30 μM. Unlike other GSH selective sensors, this platform could be formed into a hydrogel while its sensitivity was maintained. The sensitive response to GSH in serum samples makes this platform an efficient tool for biological applications because of its ease of preparation, high selectivity, good biocompatibility, and low toxicity.
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Affiliation(s)
- Xi Chen
- School of Chemical Engineering and Technology, Hebei University of Technology , Guangrong Dao No.8, Hongqiao District, Tianjin 300130, China
| | - Yuru Wang
- School of Chemical Engineering and Technology, Hebei University of Technology , Guangrong Dao No.8, Hongqiao District, Tianjin 300130, China
| | - Ran Chai
- School of Chemical Engineering and Technology, Hebei University of Technology , Guangrong Dao No.8, Hongqiao District, Tianjin 300130, China
| | - Yang Xu
- School of Chemical Engineering and Technology, Hebei University of Technology , Guangrong Dao No.8, Hongqiao District, Tianjin 300130, China
| | - Huanrong Li
- School of Chemical Engineering and Technology, Hebei University of Technology , Guangrong Dao No.8, Hongqiao District, Tianjin 300130, China
| | - Binyuan Liu
- School of Chemical Engineering and Technology, Hebei University of Technology , Guangrong Dao No.8, Hongqiao District, Tianjin 300130, China
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Tuteja SK, Chen R, Kukkar M, Song CK, Mutreja R, Singh S, Paul AK, Lee H, Kim KH, Deep A, Suri CR. A label-free electrochemical immunosensor for the detection of cardiac marker using graphene quantum dots (GQDs). Biosens Bioelectron 2016; 86:548-556. [DOI: 10.1016/j.bios.2016.07.052] [Citation(s) in RCA: 92] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Revised: 06/28/2016] [Accepted: 07/15/2016] [Indexed: 10/21/2022]
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Immobilization of myoglobin on Au nanoparticle-decorated carbon nanotube/polytyramine composite as a mediator-free H2O2 and nitrite biosensor. Sci Rep 2015; 5:18390. [PMID: 26672985 PMCID: PMC4682093 DOI: 10.1038/srep18390] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Accepted: 11/17/2015] [Indexed: 11/22/2022] Open
Abstract
A novel composite film was designed for use as a highly selective mediator-free amperometric biosensor, and a method was created for accomplishing direct electrochemistry of myoglobin on a multi-walled carbon nanotube and tyramine-modified composite decorated with Au nanoparticles on a glassy carbon electrode. The ultraviolet-visible and electrochemical impedance spectroscopy results showed that myoglobin retained its native conformation in the interaction with Au-PTy-f-MWCNT. The surface coverage of Mb-heme-Fe(II)/(III) immobilized on Au-PTy-f-MWCNT and the heterogeneous electron-transfer rate constant were 2.12 × 10−9 mol cm−2 and 4.86 s−1, respectively, indicating a higher loading capacity of the nanocomposite for direct electron transfer of Mb onto the electrode surface. The proposed Mb/Au-PTy-f-MWCNT biofilm exhibited excellent electrocatalytic behavior toward the reduction of H2O2 and the oxidation of nitrite with linear ranges of 2 to 5000 μM and 1 to 8000 μM and lower detection limits of 0.01 μM and 0.002 μM, respectively. An apparent Michaelis-Menten constant of 0.12 mM indicated that the Mb immobilized on the Au-PTy-f-MWCNT film retained its native activity. This biosensor can be successfully applied to detect H2O2 and nitrite in disinfectant cream, eye drops, pickle juice, and milk samples.
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Silvester DS, Aldous L. Electrochemical Detection Using Ionic Liquids. ELECTROCHEMICAL STRATEGIES IN DETECTION SCIENCE 2015. [DOI: 10.1039/9781782622529-00341] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Ionic liquids are relatively new additions to the field of electrochemical sensing. Despite that, they have had a significant impact, and several major areas are covered herein. This includes the application of ionic liquids in the quantification of heavy metals, explosives, and chemical warfare agents, and in biosensors and bioanalysis. Also highlighted are the significant advantages ionic liquids inherently have with regards to gas sensors and carbon paste electrodes, by virtue of their non-volatility, inherent conductivity, and diversity of structure and function. Finally, their incorporation with carbon nanomaterials to form various gels, pastes, films, and printed electrodes is also highlighted.
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Affiliation(s)
- Debbie S. Silvester
- Nanochemistry Research Institute, Department of Chemistry, Curtin University Perth, WA Australia
| | - Leigh Aldous
- School of Chemistry, UNSW Australia Sydney, NSW Australia
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Kumar V, Shorie M, Ganguli AK, Sabherwal P. Graphene-CNT nanohybrid aptasensor for label free detection of cardiac biomarker myoglobin. Biosens Bioelectron 2015; 72:56-60. [PMID: 25957831 DOI: 10.1016/j.bios.2015.04.089] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2015] [Revised: 04/20/2015] [Accepted: 04/27/2015] [Indexed: 10/23/2022]
Abstract
We report a label free electrochemical detection of cardiac bio-marker myoglobin (Mb) on aptamer functionalized rGO/CNT nanostructured electrodes by measuring its direct electron transfer (DET). Configured as a highly responsive aptasensor, the newly developed biosensing platform exhibits synergistic effect of the nano-hybrid functional construct by combining good electrical properties and the facile chemical functionality of nanohybrid for the compatible bio-interface development. The specific anti-Mb aptamer was generated by five iterative SELEX (Systematic evolution of ligands by exponential enrichment) rounds, showing high senstivity (KD ~65 pM). The aptamer functionalized rGO/CNT nanostructured electrodes demonstrated a significant increase in signal response with a detection limit of ~0.34 ng/mL in the dynamic response range between 1 ng/mL and 4 µg/mL for Mb. The newly developed DET assay format presents a promising candidate in point-of-care diagnosis for routine screening of Mb in patient's samples.
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Affiliation(s)
- Vinod Kumar
- Institute of Nano Science & Technology, Mohali 160062, India
| | - Munish Shorie
- Institute of Nano Science & Technology, Mohali 160062, India
| | - Ashok K Ganguli
- Institute of Nano Science & Technology, Mohali 160062, India.
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Yagati AK, Choi JW. Protein Based Electrochemical Biosensors for H2O2Detection Towards Clinical Diagnostics. ELECTROANAL 2014. [DOI: 10.1002/elan.201400037] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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11
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Nerimetla R, Walgama C, Ramanathan R, Krishnan S. Correlating the Electrochemical Kinetics of Myoglobin-Films to pH Dependent Meat Color. ELECTROANAL 2014. [DOI: 10.1002/elan.201300630] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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12
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Eslami E, Farjami F, Aberoomand Azar P, Saber Tehrani M. Adsorptive Stripping Voltammetric Determination of Imipramine and Amitriptiline at a Nanoclay Composite Carbon Ionic Liquid Electrode. ELECTROANAL 2014. [DOI: 10.1002/elan.201300557] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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13
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Zhao Z, Cao L, Hu A, Zhang W, Ju X, Zhang Y, Sun W. Direct Electrochemistry and Electrocatalysis of Myoglobin with CoMoO4Nanorods Modified Carbon Ionic Liquid Electrode. B KOREAN CHEM SOC 2013. [DOI: 10.5012/bkcs.2013.34.2.475] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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14
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Ma CY, Liu K, Ma CH, Chu DQ. Hydrogen Peroxide Biosensor Based on Immobilization of Hemoglobin on Au@Ag Nanoparticles Modified Carbon Ionic Liquid Electrode. J CHIN CHEM SOC-TAIP 2013. [DOI: 10.1002/jccs.201200442] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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15
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16
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Ionic liquid/graphene oxide as a nanocomposite for improving the direct electrochemistry and electrocatalytic activity of glucose oxidase. J Solid State Electrochem 2012. [DOI: 10.1007/s10008-012-1858-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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17
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Hydrogen Peroxide Biosensor Based on Cellulose Diacetate Ionic Liquid Film Immobilizing Myoglobin. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2012. [DOI: 10.3724/sp.j.1096.2011.01358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Dong S, Li N, Zhang P, Li Y, Chen Z, Huang T. Fabrication of Hemoglobin/Ionic Liquid Modified Carbon Paste Electrode Based on the Electrodeposition of Gold Nanoparticles/CdS Quantum Dots and Its Electrochemical Application. ELECTROANAL 2012. [DOI: 10.1002/elan.201200092] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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19
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Hu H, Martin JC, Zhang M, Southworth CS, Xiao M, Meng Y, Sun L. Immobilization of ionic liquids in θ-zirconium phosphate for catalyzing the coupling of CO2 and epoxides. RSC Adv 2012. [DOI: 10.1039/c2ra00015f] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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20
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He Y, Zheng J, Sheng Q. Morphology controllable synthesis of monkshoodvine root-bark like carbon and its biosensing application. Analyst 2012; 137:1031-8. [DOI: 10.1039/c2an16032c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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21
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Fujita K, Murata K, Masuda M, Nakamura N, Ohno H. Ionic liquids designed for advanced applications in bioelectrochemistry. RSC Adv 2012. [DOI: 10.1039/c2ra01045c] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
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Zhao HY, Zheng JB, Sheng QL. Electrodeposition CaCO3 Nanoparticles-chitosan Composite Film on Carbon Ionic Liquid Electrode as a Platform for Hemoglobin Electrochemical Biosensor. J CHIN CHEM SOC-TAIP 2011. [DOI: 10.1002/jccs.201190036] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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23
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Hydrogen Peroxide Biosensor Based on Cellulose Diacetate-Ionic Liquid Film Immobilizing Myoglobin. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2011. [DOI: 10.1016/s1872-2040(10)60471-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Dong S, Zhang P, Liu H, Li N, Huang T. Direct electrochemistry and electrocatalysis of hemoglobin in composite film based on ionic liquid and NiO microspheres with different morphologies. Biosens Bioelectron 2011; 26:4082-7. [DOI: 10.1016/j.bios.2011.03.039] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2011] [Revised: 03/28/2011] [Accepted: 03/29/2011] [Indexed: 11/27/2022]
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Disposable electrochemical immunosensor for myeloperoxidase based on the indium tin oxide electrode modified with an ionic liquid composite film containing gold nanoparticles, poly(o-phenylenediamine) and carbon nanotubes. Mikrochim Acta 2011. [DOI: 10.1007/s00604-011-0575-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Loget G, Chevance S, Poriel C, Simonneaux G, Lagrost C, Rault-Berthelot J. Direct Electron Transfer of Hemoglobin and Myoglobin at the Bare Glassy Carbon Electrode in an Aqueous BMI.BF4 Ionic-Liquid Mixture. Chemphyschem 2011; 12:411-8. [DOI: 10.1002/cphc.201000779] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2010] [Indexed: 11/10/2022]
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Direct electrochemistry of myoglobin based on electrodeposition of Pd nanoparticles with carbon ionic liquid electrode as basic electrode. Mikrochim Acta 2011. [DOI: 10.1007/s00604-010-0529-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Delahaye E, Xie Z, Schaefer A, Douce L, Rogez G, Rabu P, Günter C, Gutmann JS, Taubert A. Intercalation synthesis of functional hybrid materials based on layered simple hydroxide hosts and ionic liquid guests – a pathway towards multifunctional ionogels without a silica matrix? Dalton Trans 2011; 40:9977-88. [DOI: 10.1039/c1dt10841g] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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Safavi A, Farjami F. Hydrogen peroxide biosensor based on a myoglobin/hydrophilic room temperature ionic liquid film. Anal Biochem 2010; 402:20-5. [DOI: 10.1016/j.ab.2010.03.013] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2009] [Revised: 02/23/2010] [Accepted: 03/10/2010] [Indexed: 02/07/2023]
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Zhang Q, Lv X, Qiao Y, Zhang L, Liu DL, Zhang W, Han GX, Song XM. Direct Electrochemistry and Electrocatalysis of Hemoglobin Immobilized in a Polymeric Ionic Liquid Film. ELECTROANAL 2010. [DOI: 10.1002/elan.200900430] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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32
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Direct Electrochemistry of Hemoglobin in Layer-by-Layer Films Assembled with DNA and Room Temperature Ionic Liquid. ELECTROANAL 2010. [DOI: 10.1002/elan.200900373] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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33
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Direct electrochemistry and electrocatalysis of heme-proteins immobilized in porous carbon nanofiber/room-temperature ionic liquid composite film. Electrochim Acta 2010. [DOI: 10.1016/j.electacta.2009.12.101] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Xu Q, Wei F, Wang Z, Yang Q, Zhao YD, Chen H. In vivo monitor oxidative burst induced by Cd2+ stress for the oilseed rape (Brassica napus L.) based on electrochemical microbiosensor. PHYTOCHEMICAL ANALYSIS : PCA 2010; 21:192-196. [PMID: 19908213 DOI: 10.1002/pca.1178] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
INTRODUCTION Since the mechanism of Cd(2+) stress for plants is not clear, an in vivo method to monitor Cd(2+) stress for plants is necessary. However, oxidative burst (OB) is a signal messenger in the process of Cd(2+) stress for plants. OBJECTIVE To establish an electrochemical method with poly-o-phenylenediamine and Pt microparticle modified Pt electrode (POPD-Pt-MP-Pt) as a microbiosensor for the in vivo detection of oxidative burst induced by Cd(2+) stress in oilseed rape (Brassica napus L.). METHODOLOGY The optimal fabrication of POPD-Pt-MP-Pt biosensor was achieved. Electrochemical signal was collected by amperometry. RESULTS After oilseed rape was exposed to 84.9 mM CdCl(2) stress, three oxidative bursts were observed in oilseed rape by amperometry at 3.3 h, 8.4 h and 13.2 h, respectively. However, there was no obvious signal observed in the controlled assay. CONCLUSION This contribution presents the in vivo monitoring of the OB process induced by Cd(2+) stress in oilseed rape by POPD-Pt-MP-Pt microbiosensor in real-time. The novel electrochemical microbiosensor not only facilitates the real-time study in plant self-defence response to the adverse environment such as Cd(2+) stress, but also provides an effective tool for probing the self-defence mechanism in plants.
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Affiliation(s)
- Qiao Xu
- Britton Chance Center for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics-Huazhong University of Science and Technology, Wuhan, Hubei 430074, People's Republic of China
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A MgO Nanoparticles Composite Matrix-Based Electrochemical Biosensor for Hydrogen Peroxide with High Sensitivity. ELECTROANAL 2010. [DOI: 10.1002/elan.200900429] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Rahimi P, Rafiee-Pour HA, Ghourchian H, Norouzi P, Ganjali MR. Ionic-liquid/NH2-MWCNTs as a highly sensitive nano-composite for catalase direct electrochemistry. Biosens Bioelectron 2010; 25:1301-6. [DOI: 10.1016/j.bios.2009.10.020] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2009] [Revised: 10/08/2009] [Accepted: 10/14/2009] [Indexed: 02/07/2023]
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37
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Mousty C. Biosensing applications of clay-modified electrodes: a review. Anal Bioanal Chem 2009; 396:315-25. [PMID: 19936720 DOI: 10.1007/s00216-009-3274-y] [Citation(s) in RCA: 86] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2009] [Revised: 10/29/2009] [Accepted: 10/29/2009] [Indexed: 11/27/2022]
Abstract
Two-dimensional layered inorganic solids, such as cationic clays and layered double hydroxides (LDHs), also defined as anionic clays, have open structures which are favourable for interactions with enzymes and which intercalate redox mediators. This review aims to show the interest in clays and LDHs as suitable host matrices likely to immobilize enzymes onto electrode surfaces for biosensing applications. It is meant to provide an overview of the various types of electrochemical biosensors that have been developed with these 2D layered materials, along with significant advances over the last several years. The different biosensor configurations and their specific transduction procedures are discussed.
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Affiliation(s)
- Christine Mousty
- Laboratoire des Matériaux Inorganiques (LMI, UMR UBP-CNRS 6002), Université Blaise Pascal (Clermont-Ferrand), 24, Avenue des Landais, 63177, Aubière cedex, France.
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Feng X, Liu Y, Kong Q, Ye J, Chen X, Hu J, Chen Z. Direct electrochemistry of myoglobin immobilized on chitosan-wrapped rod-constructed ZnO microspheres and its application to hydrogen peroxide biosensing. J Solid State Electrochem 2009. [DOI: 10.1007/s10008-009-0883-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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