101
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Gayathri CH, Mayuri P, Sankaran K, Kumar AS. An electrochemical immunosensor for efficient detection of uropathogenic E. coli based on thionine dye immobilized chitosan/functionalized-MWCNT modified electrode. Biosens Bioelectron 2016; 82:71-7. [PMID: 27040944 DOI: 10.1016/j.bios.2016.03.062] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Revised: 03/15/2016] [Accepted: 03/23/2016] [Indexed: 12/17/2022]
Abstract
Uropathogenic Escherichia coli (UPEC) is the major cause of 150 million Urinary Tract Infections (UTI) reported annually world-wide. High prevalence of multi-drug-resistance makes it dangerous and difficult to cure. Therefore simple, quick and early diagnostic tools are essential for effective treatment and control. We report an electrochemical immunosensor based on thionine dye (Th) immobilized on functionalized-multiwalled carbon nanotube+chitosan composite coated on glassy carbon electrode (GCE/f-MWCNT-Chit@Th) for quick and sensitive detection of UPEC in aqueous solution. This immunosensor was constructed by sequential immobilization of UPEC, bovine serum albumin, primary antibody and Horse Radish Peroxidase (HRP) tagged secondary antibody on the surface of GCE/f-MWCNT-Chit@Th. When analyzed using 2.5mM of hydrogen peroxide reduction reaction using cyclic voltammetry in phosphate buffer, pH 7.0, the immunosensor showed excellent linearity in a range of 10(2)-10(9)cfu of UPEC mL(-1) with a current sensitivity of 7.162μA {log(cfumL(-1))}(-1). The specificity of this immunosensor was tested using other UTI and non-UTI bacteria, Staphylococcus, Klebsiella, Proteus and Shigella. The clinical applicability of the immunosensor was also successfully tested directly in UPEC spiked urine samples (simulated sample).
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Affiliation(s)
| | - Pinapeddavari Mayuri
- Environmental and Analytical Chemistry Division, School of Advanced Sciences, Vellore Institute of Technology University, Vellore 632014, Tamil Nadu, India; Nano and Bioelectrochemistry Research Laboratory, School of Advanced Sciences, Vellore Institute of Technology University, Vellore 632014, Tamil Nadu, India
| | - Krishnan Sankaran
- Centre for Biotechnology, Anna University, Guindy, Chennai 600025, Tamil Nadu, India.
| | - Annamalai Senthil Kumar
- Environmental and Analytical Chemistry Division, School of Advanced Sciences, Vellore Institute of Technology University, Vellore 632014, Tamil Nadu, India; Nano and Bioelectrochemistry Research Laboratory, School of Advanced Sciences, Vellore Institute of Technology University, Vellore 632014, Tamil Nadu, India.
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102
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Sajid MI, Jamshaid U, Jamshaid T, Zafar N, Fessi H, Elaissari A. Carbon nanotubes from synthesis to in vivo biomedical applications. Int J Pharm 2016; 501:278-99. [DOI: 10.1016/j.ijpharm.2016.01.064] [Citation(s) in RCA: 106] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Revised: 01/11/2016] [Accepted: 01/25/2016] [Indexed: 10/22/2022]
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103
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Prlainović NŽ, Bezbradica DI, Rogan JR, Uskoković PS, Mijin DŽ, Marinković AD. Surface functionalization of oxidized multi-walled carbon nanotubes: Candida rugosa lipase immobilization. CR CHIM 2016. [DOI: 10.1016/j.crci.2015.10.008] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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104
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Zavada SR, Battsengel T, Scott TF. Radical-Mediated Enzymatic Polymerizations. Int J Mol Sci 2016; 17:E195. [PMID: 26848652 PMCID: PMC4783929 DOI: 10.3390/ijms17020195] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2016] [Revised: 01/25/2016] [Accepted: 01/27/2016] [Indexed: 02/04/2023] Open
Abstract
Polymerization reactions are commonly effected by exposing monomer formulations to some initiation stimulus such as elevated temperature, light, or a chemical reactant. Increasingly, these polymerization reactions are mediated by enzymes--catalytic proteins--owing to their reaction efficiency under mild conditions as well as their environmental friendliness. The utilization of enzymes, particularly oxidases and peroxidases, for generating radicals via reduction-oxidation mechanisms is especially common for initiating radical-mediated polymerization reactions, including vinyl chain-growth polymerization, atom transfer radical polymerization, thiol-ene step-growth polymerization, and polymerization via oxidative coupling. While enzyme-mediated polymerization is useful for the production of materials intended for subsequent use, it is especially well-suited for in situ polymerizations, where the polymer is formed in the place where it will be utilized. Such polymerizations are especially useful for biomedical adhesives and for sensing applications.
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Affiliation(s)
- Scott R Zavada
- Macromolecular Science and Engineering Program, University of Michigan, Ann Arbor, MI 48109, USA.
| | - Tsatsral Battsengel
- Department of Chemical Engineering, University of Michigan, Ann Arbor, MI 48109, USA.
| | - Timothy F Scott
- Department of Chemical Engineering and Macromolecular Science and Engineering Program, University of Michigan, Ann Arbor, MI 48109, USA.
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105
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Rebelo TS, Noronha JP, Galésio M, Santos H, Diniz M, Sales MGF, Fernandes MH, Costa-Rodrigues J. Testing the variability of PSA expression by different human prostate cancer cell lines by means of a new potentiometric device employing molecularly antibody assembled on graphene surface. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 59:1069-1078. [DOI: 10.1016/j.msec.2015.11.032] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2015] [Revised: 10/30/2015] [Accepted: 11/11/2015] [Indexed: 01/07/2023]
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106
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Tahmasebi F, Noorbakhsh A. Sensitive Electrochemical Prostate Specific Antigen Aptasensor: Effect of Carboxylic Acid Functionalized Carbon Nanotube and Glutaraldehyde Linker. ELECTROANAL 2016. [DOI: 10.1002/elan.201501014] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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107
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Zhang W, Zhu S, Luque R, Han S, Hu L, Xu G. Recent development of carbon electrode materials and their bioanalytical and environmental applications. Chem Soc Rev 2016; 45:715-52. [DOI: 10.1039/c5cs00297d] [Citation(s) in RCA: 210] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
New synthetic approaches, materials, properties, electroanalytical applications and perspectives of carbon materials are presented.
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Affiliation(s)
- Wei Zhang
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- China
| | - Shuyun Zhu
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- China
| | - Rafael Luque
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- China
| | - Shuang Han
- Shenyang University of Chemical Technology
- Shenyang
- China
| | - Lianzhe Hu
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- China
| | - Guobao Xu
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- China
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108
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Li H, Zhao M, Liu W, Chu W, Guo Y. Polydimethylsiloxane microfluidic chemiluminescence immunodevice with the signal amplification strategy for sensitive detection of human immunoglobin G. Talanta 2016; 147:430-6. [DOI: 10.1016/j.talanta.2015.10.018] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Revised: 10/01/2015] [Accepted: 10/06/2015] [Indexed: 10/22/2022]
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109
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110
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Anik Ü, Timur S. Towards the electrochemical diagnosis of cancer: nanomaterial-based immunosensors and cytosensors. RSC Adv 2016. [DOI: 10.1039/c6ra23686c] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In this review, nanomaterial based electrochemical biosensors including electrochemical immunosensors and cytosensors towards cancer detection are covered.
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Affiliation(s)
- Ülkü Anik
- Mugla Sitki Kocman University
- Faculty of Science
- Chemistry Department
- 48000 Mugla
- Turkey
| | - Suna Timur
- Ege University
- Faculty of Science
- Biochemistry Department
- İzmir
- Turkey
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111
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Ikeda Y, Mashimo Y, Mie M, Kobatake E. Design of luciferase-displaying protein nanoparticles for use as highly sensitive immunoassay detection probes. Analyst 2016; 141:6557-6563. [DOI: 10.1039/c6an01253a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
In this study, we developed a protein nanoparticle-based immunoassay to detect cancer biomarkers using a bioluminescent fusion protein.
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Affiliation(s)
- Yusuke Ikeda
- Department of Life Science and Technology
- School of Life Science and Technology
- Tokyo Institute of Technology
- Yokohama 226-8502
- Japan
| | - Yasumasa Mashimo
- Department of Life Science and Technology
- School of Life Science and Technology
- Tokyo Institute of Technology
- Yokohama 226-8502
- Japan
| | - Masayasu Mie
- Department of Life Science and Technology
- School of Life Science and Technology
- Tokyo Institute of Technology
- Yokohama 226-8502
- Japan
| | - Eiry Kobatake
- Department of Life Science and Technology
- School of Life Science and Technology
- Tokyo Institute of Technology
- Yokohama 226-8502
- Japan
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112
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Nur Topkaya S, Ozkan-Ariksoysal D. Prostate Cancer Biomarker Detection with Carbon Nanotubes Modified Screen Printed Electrodes. ELECTROANAL 2015. [DOI: 10.1002/elan.201501003] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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113
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Park S, Kang YJ, Majd S. A Review of Patterned Organic Bioelectronic Materials and their Biomedical Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2015; 27:7583-7619. [PMID: 26397962 DOI: 10.1002/adma.201501809] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2015] [Revised: 05/17/2015] [Indexed: 06/05/2023]
Abstract
Organic electronic materials are rapidly emerging as superior replacements for a number of conventional electronic materials, such as metals and semiconductors. Conducting polymers, carbon nanotubes, graphenes, organic light-emitting diodes, and diamond films fabricated via chemical vapor deposition are the most popular organic bioelectronic materials that are currently under active research and development. Besides the capability to translate biological signals to electrical signals or vice versa, organic bioelectronic materials entail greater biocompatibility and biodegradability compared to conventional electronic materials, which makes them more suitable for biomedical applications. When patterned, these materials bring about numerous capabilities to perform various tasks in a more-sophisticated and high-throughput manner. Here, we provide an overview of the unique properties of organic bioelectronic materials, different strategies applied to pattern these materials, and finally their applications in the field of biomedical engineering, particularly biosensing, cell and tissue engineering, actuators, and drug delivery.
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Affiliation(s)
- SooHyun Park
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, PA, 16802, USA
| | - You Jung Kang
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, PA, 16802, USA
| | - Sheereen Majd
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, PA, 16802, USA
- Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, PA, 16802, USA
- Materials Research Institute, The Pennsylvania State University, University Park, PA, 16802, USA
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114
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Lai G, Zhang H, Yu A, Ju H. In situ deposition of Prussian blue on mesoporous carbon nanosphere for sensitive electrochemical immunoassay. Biosens Bioelectron 2015. [DOI: 10.1016/j.bios.2015.07.026] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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115
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Lu N, Gao A, Dai P, Mao H, Zuo X, Fan C, Wang Y, Li T. Ultrasensitive Detection of Dual Cancer Biomarkers with Integrated CMOS-Compatible Nanowire Arrays. Anal Chem 2015; 87:11203-8. [PMID: 26473941 DOI: 10.1021/acs.analchem.5b01729] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A direct, rapid, highly sensitive and specific biosensor for detection of cancer biomarkers is desirable in early diagnosis and prognosis of cancer. However, the existing methods of detecting cancer biomarkers suffer from poor sensitivity as well as the requirement of enzymatic labeling or nanoparticle conjugations. Here, we proposed a two-channel PDMS microfluidic integrated CMOS-compatible silicon nanowire (SiNW) field-effect transistor arrays with potentially single use for label-free and ultrasensitive electrical detection of cancer biomarkers. The integrated nanowire arrays showed not only ultrahigh sensitivity of cytokeratin 19 fragment (CYFRA21-1) and prostate specific antigen (PSA) with detection to at least 1 fg/mL in buffer solution but also highly selectivity of discrimination from other similar cancer biomarkers. In addition, this method was used to detect both CYFRA21-1 and PSA real samples as low as 10 fg/mL in undiluted human serums. With its excellent properties and miniaturization, the integrated SiNW-FET device opens up great opportunities for a point-of-care test (POCT) for quick screening and early diagnosis of cancer and other complex diseases.
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Affiliation(s)
- Na Lu
- Science and Technology on Microsystem Laboratory, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences , Shanghai 200050, China
| | - Anran Gao
- Science and Technology on Microsystem Laboratory, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences , Shanghai 200050, China
| | - Pengfei Dai
- Science and Technology on Microsystem Laboratory, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences , Shanghai 200050, China
| | - Hongju Mao
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences , Shanghai 200050, China
| | - Xiaolei Zuo
- Division of Physical Biology & Bioimaging Center, Shanghai Synchrotron Radiation Facility, CAS Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences , Shanghai 201800, China
| | - Chunhai Fan
- Division of Physical Biology & Bioimaging Center, Shanghai Synchrotron Radiation Facility, CAS Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences , Shanghai 201800, China
| | - Yuelin Wang
- Science and Technology on Microsystem Laboratory, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences , Shanghai 200050, China
| | - Tie Li
- Science and Technology on Microsystem Laboratory, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences , Shanghai 200050, China
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116
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Sun Z, Wang W, Wen H, Gan C, Lei H, Liu Y. Sensitive electrochemical immunoassay for chlorpyrifos by using flake-like Fe3O4 modified carbon nanotubes as the enhanced multienzyme label. Anal Chim Acta 2015; 899:91-9. [DOI: 10.1016/j.aca.2015.09.057] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Revised: 09/17/2015] [Accepted: 09/24/2015] [Indexed: 02/01/2023]
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117
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Enzymatically catalytic deposition of gold nanoparticles by glucose oxidase-functionalized gold nanoprobe for ultrasensitive electrochemical immunoassay. Biosens Bioelectron 2015; 71:353-358. [DOI: 10.1016/j.bios.2015.04.061] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2015] [Revised: 03/27/2015] [Accepted: 04/20/2015] [Indexed: 11/23/2022]
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118
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Liu Y, Xu LP, Wang S, Yang W, Wen Y, Zhang X. An ultrasensitive electrochemical immunosensor for apolipoprotein E4 based on fractal nanostructures and enzyme amplification. Biosens Bioelectron 2015; 71:396-400. [DOI: 10.1016/j.bios.2015.04.068] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2015] [Revised: 04/18/2015] [Accepted: 04/21/2015] [Indexed: 12/28/2022]
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119
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Hori N, Chikae M, Kirimura H, Takamura Y. pH dependence of non-specific adsorption and detection solution in electrochemical metalloimmunoassay using antibody–silver nanoparticle conjugates. SENSING AND BIO-SENSING RESEARCH 2015. [DOI: 10.1016/j.sbsr.2015.07.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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120
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Li L, Zhang L, Yu J, Ge S, Song X. All-graphene composite materials for signal amplification toward ultrasensitive electrochemical immunosensing of tumor marker. Biosens Bioelectron 2015; 71:108-114. [DOI: 10.1016/j.bios.2015.04.032] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Revised: 04/03/2015] [Accepted: 04/12/2015] [Indexed: 01/09/2023]
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121
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Lee AC, Du D, Chen B, Heng CK, Lim TM, Lin Y. Electrochemical detection of leukemia oncogenes using enzyme-loaded carbon nanotube labels. Analyst 2015; 139:4223-30. [PMID: 24961450 DOI: 10.1039/c3an01156a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We describe an ultrasensitive electrochemical nucleic acid assay amplified by carbon nanotubes (CNTs)-based labels for the detection of human acute lymphocytic leukemia (ALL)-related p185 BCR-ABL fusion transcript. The carboxylated CNTs were functionalized with horseradish peroxidase (HRP) molecules and target-specific detection probes (DP) via diimide-activated amidation and used to label and amplify the target hybridization signal. The activity of captured HRP was monitored by square-wave voltammetry measuring the electroactive enzymatic product in the presence of 2-aminophenol and hydrogen peroxide substrate solution. The signal-amplified assay achieved a detection limit of 83 fM (5 × 10(-18) mol in 60 μL) targets oligonucleotides and has a 4-order-wide dynamic range of target concentration. The resulting assay allowed robust discrimination between the perfect match and a three-base mismatch sequence. When exposed to the full-length (491 bp) DNA oncogene, the approach demonstrated a detection limit of 1 × 10(-16) mol in 60 μL, corresponding to approximately 33 pg of the target gene. The high sensitivity and specificity of the assay enabled a PCR-free detection of target transcripts in as little as 65 ng of mRNA extracted from positive ALL cell lines SUP-B15 in comparison to those obtained from negative cell line HL-60. The approach enables a simple, low-cost and ultrasensitive electrochemical nucleic acid detection in portable devices, point-of-care and early disease diagnostic applications.
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Affiliation(s)
- Ai-Cheng Lee
- Pacific Northwest National Laboratory, Richland, Washington 99352, USA.
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122
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Takagi K, Kashima Y, Fujii S, Koumoto K. Enhanced Chromogenic Sensitivity of Horseradish Peroxidase-Catalyzed Oxidative Reactions in the Presence of Betaine-Type Metabolite Analogs. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2015. [DOI: 10.1246/bcsj.20150050] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Kotomi Takagi
- Department of Nanobiochemistry, FIRST (Frontiers of Innovative Research in Science and Technology), Konan University
| | | | - Satoshi Fujii
- Department of Nanobiochemistry, FIRST (Frontiers of Innovative Research in Science and Technology), Konan University
| | - Kazuya Koumoto
- Department of Nanobiochemistry, FIRST (Frontiers of Innovative Research in Science and Technology), Konan University
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123
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Duangkaew P, Tapaneeyakorn S, Apiwat C, Dharakul T, Laiwejpithaya S, Kanatharana P, Laocharoensuk R. Ultrasensitive electrochemical immunosensor based on dual signal amplification process for p16(INK4a) cervical cancer detection in clinical samples. Biosens Bioelectron 2015. [PMID: 26201985 DOI: 10.1016/j.bios.2015.07.004] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The p16(INK4a) (p16) is a cyclin-dependent kinase inhibitor, which has been evaluated in several studies as a diagnostic marker of cervical cancer. Immunostaining using p16 specific antibody has confirmed an over-expression of p16 protein in cervical cancer cells and its association with disease progression. This article reports an ultrasensitive electrochemical immunosensor for specific detection of p16 and demonstrates its performance for detection of solubilized p16 protein in cell lysates obtained from patients. Sandwich-based immunoreaction couple with double signal amplification strategy based on catalytic enlargement of particle tag was used for high sensitivity and specificity. The conditions were optimized to create an immunoassay protocol. Disposable screen-printed electrode modified with capture antibodies (Ab1) was selected for further implementation towards point-of-care diagnostics. Small gold nanoparticles (15 nm diameter) conjugated with detection antibodies (Ab2) were found to better serve as a detection label due to limited interference with antigen-antibody interaction. Double signal enhancement was performed by sequential depositions of gold and silver layers. This gave the sensitivity of 1.78 μA mL(ng GST-p16)(-1) cm(-2) and detection limit of 1.3 ng mL(-1) for GST-p16 protein which is equivalent to 0.49 ng mL(-1) for p16 protein and 28 cells for HeLa cervical cancer cells. In addition to purified protein, the proposed immunosensor effectively detected elevated p16 level in cervical swab samples obtained from 10 patients with positive result from standard Pap smear test, indicating that an electrochemical immunosensors hold an excellent promise for detection of cervical cancer in clinical setting.
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Affiliation(s)
- Pattasuda Duangkaew
- Nanostructures and Functional Assembly Laboratory, National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani 12120, Thailand
| | - Satita Tapaneeyakorn
- Nanomolecular Target Discovery Laboratory, National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani 12120, Thailand
| | - Chayachon Apiwat
- Nanomolecular Target Discovery Laboratory, National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani 12120, Thailand
| | - Tararaj Dharakul
- Nanomolecular Target Discovery Laboratory, National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani 12120, Thailand; Department of Immunology and Department of Obstetrics and Gynaecology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Somsak Laiwejpithaya
- Department of Immunology and Department of Obstetrics and Gynaecology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Proespichaya Kanatharana
- Trace Analysis and Biosensor Research Center, Department of Chemistry, Faculty of Science, Prince of Songkla University, Songkhla, Thailand
| | - Rawiwan Laocharoensuk
- Nanostructures and Functional Assembly Laboratory, National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani 12120, Thailand.
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124
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Wu D, Ren X, Hu L, Fan D, Zheng Y, Wei Q. Electrochemical aptasensor for the detection of adenosine by using PdCu@MWCNTs-supported bienzymes as labels. Biosens Bioelectron 2015; 74:391-7. [PMID: 26164010 DOI: 10.1016/j.bios.2015.07.003] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Revised: 06/24/2015] [Accepted: 07/02/2015] [Indexed: 11/19/2022]
Abstract
A highly sensitive electrochemical adenosine aptasensor was fabricated by covalently immobilizing 3'-NH2-terminated capture probe (SSDNA1) and thionine (TH) on Au-GS modified glassy carbon electrode. 3'-SH-terminated adenosine aptamer (SSDNA2) was adsorbed onto palladium/copper alloyed supported on MWCNTs (PdCu@MWCNTs)-conjugated multiple bienzymes, glucose oxidase (GOx), and horseradish peroxidase (HRP) (SSDNA2/PdCu@MWCNTs/HRP/GOx). Then, it was immobilized onto the electrode surface through the hybridization between the adenosine aptamer and the capture probe. The signal was amplified based on the gradual electrocatalytic reduction of GOx-generated hydrogen peroxide by the multiple HRP through the mediating ability of the loaded multiple TH. However, the peak current of TH decreased in the presence of adenosine because the interaction between adenosine and its aptamer made SSDNA2/PdCu@MWCNTs/HRP/GOx release from the modified electrode. Various experimental parameters have been optimized for the detection of adenosine and tests for selectivity, reproducibility and stability have also been performed. Under the optimal condition, the proposed aptasensor displayed a wide linear range (10-400 nM) with the low detection limit (2.5 nM), which has been applied in human serum samples with satisfactory results. Thus, the combination of Au-GS as a sensor platform and PdCu@MWCNTs/HRP/GOx as labels can be a promising amplification strategy for highly sensitive adenosine detection.
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Affiliation(s)
- Dan Wu
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
| | - Xiang Ren
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
| | - Lihua Hu
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
| | - Dawei Fan
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
| | - Yang Zheng
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
| | - Qin Wei
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China.
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125
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Cui H, Song W, Cao Z, Lu J. Simultaneous and sensitive detection of dual DNA targets via quantum dot-assembled amplification labels. LUMINESCENCE 2015; 31:281-7. [PMID: 26081829 DOI: 10.1002/bio.2959] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2015] [Revised: 05/13/2015] [Accepted: 05/14/2015] [Indexed: 01/02/2023]
Abstract
We describe a signal amplification assay for the simultaneous detection of HIV-1 and HIV-2 via a quantum dot (QD) layer-by-layer assembled polystyrene microsphere (PS) composite in a homogeneous format. The crucial point of this composite is the core-shell system. PS is utilized as the core and QDs as the shell. Based on the high affinity of streptavidin and biotin, QDs are assembled layer-by-layer on the surface of the PS as amplification labels. Biotinylated reporter probe is combined with the PS-QDs conjugate and then hybridized with target DNA immobilized on the surface of a 96-well plate. Using this approach, each target DNA corresponds to a large number of QDs and the fluorescence signal is greatly enhanced. Two QD colors (605 and 655 nm) are used to detect dual-target DNAs simultaneously. Taking advantage of the enzyme-free reaction and high sensitivity, this PS-QD-based sensor can be used in simple 'mix and detection' assays. Our results show that this technology has potential application in rapid point-of-care testing, gene expression studies, high-throughput screening and clinical diagnostics.
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Affiliation(s)
- Hongyan Cui
- School of Pharmacy, Key Laboratory of Smart Drug Delivery, Ministry of Education & PLA, Fudan University, Shanghai, China
| | - Wenqing Song
- School of Pharmacy, Key Laboratory of Smart Drug Delivery, Ministry of Education & PLA, Fudan University, Shanghai, China
| | - Zhijuan Cao
- School of Pharmacy, Key Laboratory of Smart Drug Delivery, Ministry of Education & PLA, Fudan University, Shanghai, China
| | - Jianzhong Lu
- School of Pharmacy, Key Laboratory of Smart Drug Delivery, Ministry of Education & PLA, Fudan University, Shanghai, China
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126
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Jiang L, Yang Y, Tu Y. A new strategy to develop the disposable label-free immunosensor with electrochemiluminescent probing. J Electroanal Chem (Lausanne) 2015. [DOI: 10.1016/j.jelechem.2015.04.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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127
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Ma Z, Liu N. Design of immunoprobes for electrochemical multiplexed tumor marker detection. Expert Rev Mol Diagn 2015; 15:1075-83. [PMID: 26027743 DOI: 10.1586/14737159.2015.1052798] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Many approaches have been developed for simultaneous detection of multiple tumor markers. Among these approaches, the electrochemical immunoassay has the advantage of high sensitivity and specificity and could be easily expanded into multiplex detection platform. For the simultaneous multianalyte electrochemical immunosensor, performance is closely related with the characteristics of the immunoprobes and substrate. In order to construct a multilabeled immunoprobe platform, the most important issue is how to discriminate each signal for each analyte from the multiple antigen-antibody reactions. Currently, enzyme-based, noble metal nanomaterials, carbonmaterials and polymer-based nanomaterial immunoprobes have been used for dual- or three-analyte detections. However, there are still some challenges in developing sensitive method to detect three or more tumor markers owing to the lack of redox-active species that can produce three or more distinctive peaks. Additionally, for the immunosensing substrate, good conductivity, high specific surface area and good biocompatibility are further necessities.
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Affiliation(s)
- Zhanfang Ma
- Department of Chemistry, Capital Normal University, Beijing 100048, China
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128
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Yang J, Wen W, Zhang X, Wang S. Electrochemical immunosensor for the prostate specific antigen detection based on carbon nanotube and gold nanoparticle amplification strategy. Mikrochim Acta 2015. [DOI: 10.1007/s00604-015-1523-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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129
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Prieto-Simón B, Bandaru N, Saint C, Voelcker N. Tailored carbon nanotube immunosensors for the detection of microbial contamination. Biosens Bioelectron 2015; 67:642-8. [DOI: 10.1016/j.bios.2014.09.089] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2014] [Revised: 09/29/2014] [Accepted: 09/30/2014] [Indexed: 10/24/2022]
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130
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Kadimisetty K, Malla S, Sardesai N, Joshi AA, Faria RC, Lee N, Rusling JF. Automated multiplexed ECL Immunoarrays for cancer biomarker proteins. Anal Chem 2015; 87:4472-8. [PMID: 25821929 PMCID: PMC4437514 DOI: 10.1021/acs.analchem.5b00421] [Citation(s) in RCA: 98] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Point-of-care diagnostics based on multiplexed protein measurements face challenges of simple, automated, low-cost, and high-throughput operation with high sensitivity. Herein, we describe an automated, microprocessor-controlled microfluidic immunoarray for simultaneous multiplexed detection of small protein panels in complex samples. A microfluidic sample/reagent delivery cassette was coupled to a 30-microwell detection array to achieve sensitive detection of four prostate cancer biomarker proteins in serum. The proteins are prostate specific antigen (PSA), prostate specific membrane antigen (PSMA), platelet factor-4 (PF-4), and interlukin-6 (IL-6). The six channel system is driven by integrated micropumps controlled by an inexpensive programmable microprocessor. The reagent delivery cassette and detection array feature channels made by precision-cut 0.8 mm silicone gaskets. Single-wall carbon nanotube forests were grown in printed microwells on a pyrolytic graphite detection chip and decorated with capture antibodies. The detection chip is housed in a machined microfluidic chamber with a steel metal shim counter electrode and Ag/AgCl reference electrode for electrochemiluminescent (ECL) measurements. The preloaded sample/reagent cassette automatically delivers samples, wash buffers, and ECL RuBPY-silica-antibody detection nanoparticles sequentially. An onboard microcontroller controls micropumps and reagent flow to the detection chamber according to a preset program. Detection employs tripropylamine, a sacrificial reductant, while applying 0.95 V vs Ag/AgCl. Resulting ECL light was measured by a CCD camera. Ultralow detection limits of 10-100 fg mL(-1) were achieved in simultaneous detection of the four protein in 36 min assays. Results for the four proteins in prostate cancer patient serum gave excellent correlation with those from single-protein ELISA.
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Affiliation(s)
- Karteek Kadimisetty
- Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269, United States
| | - Spundana Malla
- Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269, United States
| | - Naimish Sardesai
- Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269, United States
| | - Amit A. Joshi
- Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269, United States
| | - Ronaldo C. Faria
- Departamento de Química, Universidade Federal de São Carlos, São Carlos, SP 13565-905, Brazil
| | - Norman Lee
- Department of Pharmacology & Physiology, George Washington University, Washington, DC 20037, United States
| | - James F. Rusling
- Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269, United States
- Department of Cell Biology, University of Connecticut Health Center, Farmington, Connecticut 06032, United States
- School of Chemistry, National University of Ireland at Galway, Galway, Ireland
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131
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Immunoreaction-triggered DNA assembly for one-step sensitive ratiometric electrochemical biosensing of protein biomarker. Biosens Bioelectron 2015; 66:345-9. [DOI: 10.1016/j.bios.2014.11.046] [Citation(s) in RCA: 113] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2014] [Revised: 11/19/2014] [Accepted: 11/21/2014] [Indexed: 12/29/2022]
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132
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Paleček E, Tkáč J, Bartošík M, Bertók T, Ostatná V, Paleček J. Electrochemistry of nonconjugated proteins and glycoproteins. Toward sensors for biomedicine and glycomics. Chem Rev 2015; 115:2045-108. [PMID: 25659975 PMCID: PMC4360380 DOI: 10.1021/cr500279h] [Citation(s) in RCA: 209] [Impact Index Per Article: 23.2] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2014] [Indexed: 02/07/2023]
Affiliation(s)
- Emil Paleček
- Institute
of Biophysics Academy of Science of the Czech Republic, v.v.i., Královopolská
135, 612 65 Brno, Czech Republic
| | - Jan Tkáč
- Institute
of Chemistry, Slovak Academy of Sciences, Dúbravská cesta 9, 845 38 Bratislava, Slovakia
| | - Martin Bartošík
- Regional
Centre for Applied Molecular Oncology, Masaryk
Memorial Cancer Institute, Žlutý kopec 7, 656 53 Brno, Czech Republic
| | - Tomáš Bertók
- Institute
of Chemistry, Slovak Academy of Sciences, Dúbravská cesta 9, 845 38 Bratislava, Slovakia
| | - Veronika Ostatná
- Institute
of Biophysics Academy of Science of the Czech Republic, v.v.i., Královopolská
135, 612 65 Brno, Czech Republic
| | - Jan Paleček
- Central
European Institute of Technology, Masaryk
University, Kamenice
5, 625 00 Brno, Czech Republic
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133
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Wang Y, Wang S, Tao L, Min Q, Xiang J, Wang Q, Xie J, Yue Y, Wu S, Li X, Ding H. A disposable electrochemical sensor for simultaneous determination of norepinephrine and serotonin in rat cerebrospinal fluid based on MWNTs-ZnO/chitosan composites modified screen-printed electrode. Biosens Bioelectron 2015; 65:31-8. [DOI: 10.1016/j.bios.2014.09.099] [Citation(s) in RCA: 92] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2014] [Revised: 09/15/2014] [Accepted: 09/17/2014] [Indexed: 01/06/2023]
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134
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Zhang B, Liu B, Chen G, Tang D. Redox and catalysis ‘all-in-one’ infinite coordination polymer for electrochemical immunosensor of tumor markers. Biosens Bioelectron 2015; 64:6-12. [DOI: 10.1016/j.bios.2014.08.024] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2014] [Revised: 08/13/2014] [Accepted: 08/15/2014] [Indexed: 10/24/2022]
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135
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Huang W, Diallo AK, Dailey JL, Besar K, Katz HE. Electrochemical processes and mechanistic aspects of field-effect sensors for biomolecules. JOURNAL OF MATERIALS CHEMISTRY. C 2015; 3:6445-6470. [PMID: 29238595 PMCID: PMC5724786 DOI: 10.1039/c5tc00755k] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Electronic biosensing is a leading technology for determining concentrations of biomolecules. In some cases, the presence of an analyte molecule induces a measured change in current flow, while in other cases, a new potential difference is established. In the particular case of a field effect biosensor, the potential difference is monitored as a change in conductance elsewhere in the device, such as across a film of an underlying semiconductor. Often, the mechanisms that lead to these responses are not specifically determined. Because improved understanding of these mechanisms will lead to improved performance, it is important to highlight those studies where various mechanistic possibilities are investigated. This review explores a range of possible mechanistic contributions to field-effect biosensor signals. First, we define the field-effect biosensor and the chemical interactions that lead to the field effect, followed by a section on theoretical and mechanistic background. We then discuss materials used in field-effect biosensors and approaches to improving signals from field-effect biosensors. We specifically cover the biomolecule interactions that produce local electric fields, structures and processes at interfaces between bioanalyte solutions and electronic materials, semiconductors used in biochemical sensors, dielectric layers used in top-gated sensors, and mechanisms for converting the surface voltage change to higher signal/noise outputs in circuits.
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Affiliation(s)
- Weiguo Huang
- Department of Materials Science and Engineering, Johns Hopkins University, 3400 North Charles Street, 206 Maryland Hall, Baltimore, MD, USA
| | - Abdou Karim Diallo
- Department of Materials Science and Engineering, Johns Hopkins University, 3400 North Charles Street, 206 Maryland Hall, Baltimore, MD, USA
| | - Jennifer L Dailey
- Department of Materials Science and Engineering, Johns Hopkins University, 3400 North Charles Street, 206 Maryland Hall, Baltimore, MD, USA
| | - Kalpana Besar
- Department of Materials Science and Engineering, Johns Hopkins University, 3400 North Charles Street, 206 Maryland Hall, Baltimore, MD, USA
| | - Howard E Katz
- Department of Materials Science and Engineering, Johns Hopkins University, 3400 North Charles Street, 206 Maryland Hall, Baltimore, MD, USA
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136
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Huang Y, Kannan P, Zhang L, Chen T, Kim DH. Concave gold nanoparticle-based highly sensitive electrochemical IgG immunobiosensor for the detection of antibody–antigen interactions. RSC Adv 2015. [DOI: 10.1039/c5ra10990f] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
A concave gold nanocuboid-based electrochemical sensor was developed for the highly sensitive detection of antibody–antigen interactions.
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Affiliation(s)
- Youju Huang
- Division of Polymer and Composite Materials
- Ningbo Institute of Material Technology and Engineering
- Chinese Academy of Science
- Ningbo 315201
- China
| | - Palanisamy Kannan
- Singapore Centre on Environmental Life Science Engineering (SCELSE)
- Nanyang Technological University
- Singapore
| | - Lei Zhang
- Division of Polymer and Composite Materials
- Ningbo Institute of Material Technology and Engineering
- Chinese Academy of Science
- Ningbo 315201
- China
| | - Tao Chen
- Division of Polymer and Composite Materials
- Ningbo Institute of Material Technology and Engineering
- Chinese Academy of Science
- Ningbo 315201
- China
| | - Dong-Hwan Kim
- School of Chemical and Biomedical Engineering (SCBE)
- Nanyang Technological University
- Singapore
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137
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Bedford EE, Boujday S, Pradier CM, Gu FX. Nanostructured and spiky gold in biomolecule detection: improving binding efficiencies and enhancing optical signals. RSC Adv 2015. [DOI: 10.1039/c4ra13544j] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Nanostructured gold can improve the ability to detect biomolecules.
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Affiliation(s)
- E. E. Bedford
- Sorbonne Universités
- UPMC University Paris 6
- UMR CNRS 7197
- Laboratoire de Réactivité de Surface
- F75005 Paris
| | - S. Boujday
- Sorbonne Universités
- UPMC University Paris 6
- UMR CNRS 7197
- Laboratoire de Réactivité de Surface
- F75005 Paris
| | - C.-M. Pradier
- Sorbonne Universités
- UPMC University Paris 6
- UMR CNRS 7197
- Laboratoire de Réactivité de Surface
- F75005 Paris
| | - F. X. Gu
- Department of Chemical Engineering
- University of Waterloo
- Waterloo
- Canada
- Waterloo Institute for Nanotechnology
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138
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Carbon-Based Nanomaterials for Targeted Drug Delivery and Imaging. ADVANCES IN DELIVERY SCIENCE AND TECHNOLOGY 2015. [DOI: 10.1007/978-3-319-11355-5_19] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
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139
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Gelsolin bound β-amyloid peptides(1-40/1-42): electrochemical evaluation of levels of soluble peptide associated with Alzheimer's disease. Biosens Bioelectron 2014; 68:115-121. [PMID: 25562737 DOI: 10.1016/j.bios.2014.12.041] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2014] [Revised: 12/15/2014] [Accepted: 12/17/2014] [Indexed: 12/11/2022]
Abstract
A method for the highly sensitive determination of soluable β-amyloid peptides (Aβ(1-40/1-42)) that employs a detection bioconjugate of HRP-Au-gelsolin as the electrochemical nanoprobe is presented. Contrary to previous detection notions that utilized antibodies, which could specifically recognize the N- or C-terminus of peptides, we demonstrate herein that the reported specific binding between gelsolin and Aβ might provide an alternative way to evaluate the peptides sensitively and selectively. The HRP-Au-gelsolin nanohybrid was designed by one-pot functionalization of Au nanaoparticles (NPs) with horseradish peroxidase (HRP) and gelsolin. Through a sandwich-type sensor array, soluble Aβ(1-40/1-42) were captured onto the array due to the interactions between targeted peptides and surface-confined gelsolin and electrochemical signals were amplified by abundant attachments of HRP labeled on AuNPs, which could specifically catalyse its substrate, 3,3',5,5'-tetramethylbenzidine (TMB) in the presence of H2O2 to give rise to measurable signals. The proposed gelsolin-bound Aβ methodology displayed satisfactory sensitivity and wide linear range towards Aβ(1-40/1-42) with a detection limit down to 28 pM, which are verified to be sensitive-enough for the assessment of Aβ levels both in normal and Alzheimer's disease (AD) rat brains. Experimental results indicated that compared with normal group, soluble β-amyloid peptide levels in cerebrospinal fluid (CSF) and targeted brain tissues of AD rats all declined with differentiable degrees. In short, the newly unfolding strategy presents valuable information related to pathological events in brain and will exhibit a braw perspective for the early diagnosis of AD process.
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140
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Li H, Chen L, Wu H, He H, Jin Y. Ionic liquid-functionalized fluorescent carbon nanodots and their applications in electrocatalysis, biosensing, and cell imaging. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:15016-15021. [PMID: 25418328 DOI: 10.1021/la503729v] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
In this article, ionic liquid-functionalized carbon nanodots (IL-CDs) were produced in a simple manner by electrochemical exfoliation of graphite rods in the presence of an amino-terminated ionic liquid, and their preliminary applications were exploited. TEM and AFM results showed that these IL-CDs are about 2.6 nm in diameter. The small-sized IL-CDs have strong photoluminescence, with a quantum yield of about 11.3%, and could be used for cell imaging. Moreover, the IL-CDs exhibit good electron transfer properties and catalytic activities for O2 and H2O2 reduction. Additionally, the as-prepared IL-CDs can be applied as a matrix for immobilizing enzymes (glucose oxidase) to construct biosensors. Due to these favorable properties, IL-CDs will find promising practical applications in electrocatalysis, biosensing, and bioimaging.
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Affiliation(s)
- Haijuan Li
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun, Jilin 130022, China
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141
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Amplified electrochemical detection of protein kinase activity based on gold nanoparticles/multi-walled carbon nanotubes nanohybrids. Talanta 2014; 129:328-35. [DOI: 10.1016/j.talanta.2014.05.043] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2014] [Revised: 05/05/2014] [Accepted: 05/07/2014] [Indexed: 11/19/2022]
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142
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Deborah M, Jawahar A, Mathavan T, Kumara Dhas M, Benial AMF. Spectroscopic studies on covalent functionalization of single-walled carbon nanotubes with glycine. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014:S1386-1425(14)01423-1. [PMID: 25448929 DOI: 10.1016/j.saa.2014.09.065] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2014] [Revised: 09/08/2014] [Accepted: 09/18/2014] [Indexed: 06/04/2023]
Abstract
Single-walled carbon nanotubes (SWCNTs) have a great potential in a wide range of applications, but faces limitation in terms of dispersion feasibility. The functionalization process of SWCNTs with the amino acid, glycine involves oxidation reaction using a mild aqueous acid mixture of HNO3 and H2SO4 (1:3), via ultrasonication technique and the resulted oxidized SWCNTs were again treated with the amino acid glycine suspension. The resulted glycine functionalized carbon nanotubes have been characterized by XRD, UV-Vis, FTIR, EPR, SEM, and EDX, spectroscopic techniques. The enhanced XRD peak (002) intensity was observed for glycine functionalized SWCNTs compared with oxidized SWCNTs, which is likely due to sample purification by acid washing. The red shift was observed in the UV-Vis spectra of glycine functionalized SWCNTs, which reveals that the covalent bond formation between glycine molecule and SWCNTs. The functional groups of oxidized SWCNTs and glycine functionalized SWCNTs were identified and assigned. EPR results indicate that the unpaired electron undergoes reduction process in glycine functionalized SWCNTs. SEM images show that the increase in the diameter of the SWCNTs was observed for glycine functionalized SWCNTs, which indicates that the adsorption of glycine molecule on the sidewalls of oxidized SWCNTs. EDX elemental micro analysis confirms that the nitrogen element exists in glycine functionalized SWCNTs. The functionalization has been chosen due to CONH bioactive sites in glycine functionalized SWCNTs for future applications.
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Affiliation(s)
- M Deborah
- Department of Chemistry, NMSSVN College, Madurai 625 019, Tamil Nadu, India
| | - A Jawahar
- Department of Chemistry, NMSSVN College, Madurai 625 019, Tamil Nadu, India
| | - T Mathavan
- Department of Physics, NMSSVN College, Madurai 625 019, Tamil Nadu, India
| | - M Kumara Dhas
- Department of Physics, NMSSVN College, Madurai 625 019, Tamil Nadu, India
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143
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Yang P, Li X, Wang L, Wu Q, Chen Z, Lin X. Sandwich-type amperometric immunosensor for cancer biomarker based on signal amplification strategy of multiple enzyme-linked antibodies as probes modified with carbon nanotubes and concanavalin A. J Electroanal Chem (Lausanne) 2014. [DOI: 10.1016/j.jelechem.2014.08.030] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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144
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Zhao C, Wu J, Ju H, Yan F. Multiplexed electrochemical immunoassay using streptavidin/nanogold/carbon nanohorn as a signal tag to induce silver deposition. Anal Chim Acta 2014; 847:37-43. [DOI: 10.1016/j.aca.2014.07.035] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2013] [Revised: 07/21/2014] [Accepted: 07/22/2014] [Indexed: 12/20/2022]
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145
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Hammock ML, Knopfmacher O, Ng TN, Tok JBH, Bao Z. Electronic readout enzyme-linked immunosorbent assay with organic field-effect transistors as a preeclampsia prognostic. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2014; 26:6138-44. [PMID: 25047764 DOI: 10.1002/adma.201401829] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2014] [Revised: 06/17/2014] [Indexed: 05/24/2023]
Abstract
Organic field-effect transistor (OFET) sensors can meet the need for portable and real-time diagnostics. An electronicreadout enzyme-linked immunosorbent assay using OFETs for the detection of a panel of three biomarkers in complex media to create a pre-eclampsia prognostic is demonstrated, along with biodetection utilizing a fully inkjet-printed and flexible OFET to underscore our ability to produce disposable devices.
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Affiliation(s)
- Mallory L Hammock
- Department of Chemical Engineering, Stanford University, Stanford, CA, 94305
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146
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Sun J, Du K, Gao J, Li L, Ji P, Feng W. Functionalization of Magnetic Multiwalled Carbon Nanotubes with Mixed Surfactants for Enhancing Protein Adsorption. Ind Eng Chem Res 2014. [DOI: 10.1021/ie5015519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jian Sun
- Beijing Key Lab of Bioprocess, Department of Biochemical Engineering and ‡Department of
Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029 China
| | - Kun Du
- Beijing Key Lab of Bioprocess, Department of Biochemical Engineering and ‡Department of
Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029 China
| | - Jiang Gao
- Beijing Key Lab of Bioprocess, Department of Biochemical Engineering and ‡Department of
Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029 China
| | - Ling Li
- Beijing Key Lab of Bioprocess, Department of Biochemical Engineering and ‡Department of
Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029 China
| | - Peijun Ji
- Beijing Key Lab of Bioprocess, Department of Biochemical Engineering and ‡Department of
Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029 China
| | - Wei Feng
- Beijing Key Lab of Bioprocess, Department of Biochemical Engineering and ‡Department of
Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029 China
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147
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Jun J, Lee JS, Shin DH, Jang J. Aptamer-functionalized hybrid carbon nanofiber FET-type electrode for a highly sensitive and selective platelet-derived growth factor biosensor. ACS APPLIED MATERIALS & INTERFACES 2014; 6:13859-13865. [PMID: 25020238 DOI: 10.1021/am5032693] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Precise selectivity and rapid responses to target biomolecules are important in the development of biosensors. In particular, highly sensitive and selective biosensors have been used in clinical treatment to detect factors such as cancer oncoproteins and endocrine disruptors. Herein, highly sensitive liquid electrolyte field-effect transistor (FET) system biosensors were fabricated to detect platelet-derived growth factor (PDGF) using a PDGF-B binding aptamer conjugated with carboxylic polypyrrole-coated metal oxide-decorated carbon nanofibers (CPMCNFs) as the signal transducer. First, CPMCNFs were fabricated using vapor deposition polymerization (VDP) of the carboxylic pryrrole monomer (CPy) on metal oxide-decorated carbon nanofiber (MCNF) surfaces with no treatment for carbon surface functionalization. Furthermore, a 3 nm thick uniformly coated carboxylic polypyrrole (CPPy) layer was formed without aggregation. The CPMCNFs were integrated with the PDGF-B binding aptamer and immobilized on the interdigitated array substrate by covalent anchoring to produce a FET-type biosensor transducer. The PDGF-B binding aptamer conjugated CPMCNF (CPB-Apt) FET sensor was highly sensitive (5 fM) and extremely selective for isoforms of PDGFs. Additionally, the CPB-Apt FET sensor could be reused over a few weeks.
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Affiliation(s)
- Jaemoon Jun
- School of Chemical and Biological Engineering, College of Engineering, Seoul National University (SNU) , 599 Gwanangno, Gwanak-gu, Seoul, 151-742 Korea
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148
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Xia N, Zhang L. Nanomaterials-Based Sensing Strategies for Electrochemical Detection of MicroRNAs. MATERIALS 2014; 7:5366-5384. [PMID: 28788133 PMCID: PMC5455827 DOI: 10.3390/ma7075366] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/23/2014] [Revised: 06/10/2014] [Accepted: 07/14/2014] [Indexed: 12/28/2022]
Abstract
MicroRNAs (miRNAs) play important functions in post-transcriptional regulation of gene expression. They have been regarded as reliable molecular biomarkers for many diseases including cancer. However, the content of miRNAs in cells can be low down to a few molecules per cell. Thus, highly sensitive analytical methods for miRNAs detection are desired. Recently, electrochemical biosensors have held great promise as devices suitable for point-of-care diagnostics and multiplexed platforms for fast, simple and low-cost nucleic acid analysis. Signal amplification by nanomaterials is one of the most popular strategies for developing ultrasensitive assay methods. This review surveys the latest achievements in the use of nanomaterials to detect miRNAs with a focus on electrochemical techniques.
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Affiliation(s)
- Ning Xia
- College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, China.
| | - Liping Zhang
- College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, China.
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149
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Kluková L, Bertók T, Kasák P, Tkac J. Nanoscale controlled architecture for development of ultrasensitive lectin biosensors applicable in glycomics. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2014; 6:4922-4931. [PMID: 27231486 PMCID: PMC4878709 DOI: 10.1039/c4ay00495g] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
In this Minireview the most advanced patterning protocols and transducing schemes for development of ultrasensitive label-free and label-based lectin biosensors for glycoprofiling of disease markers and some cancerous cells are described. Performance of such lectin biosensors with interfacial properties tuned at a nanoscale are critically compared to the most sensitive immunoassay format of analysis and challenges ahead in the field are discussed. Moreover, key elements for future advances of such devices on the way to enhance robustness and practical applicability of lectin biosensors are revealed.
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Affiliation(s)
- L Kluková
- Institute of Chemistry, Slovak Academy of Sciences, Dúbravská cesta 9, 845 38 Bratislava, Slovakia
| | - T Bertók
- Institute of Chemistry, Slovak Academy of Sciences, Dúbravská cesta 9, 845 38 Bratislava, Slovakia
| | - P Kasák
- Center for Advanced Materials, Qatar University, P.O. Box 2713, Doha, Qatar; Department for Biomaterial Research, Polymer Institute, Slovak Academy of Sciences, Dúbravská cesta 9, Bratislava 845 38, Slovakia
| | - J Tkac
- Institute of Chemistry, Slovak Academy of Sciences, Dúbravská cesta 9, 845 38 Bratislava, Slovakia
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150
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Tyrosinase Multilayer-Functionalised Carbon Nanotubes as Electrochemical Labels: Application To Immunoassay. BIONANOSCIENCE 2014. [DOI: 10.1007/s12668-014-0144-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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