101
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England MW, Lambert EM, Li M, Turyanska L, Patil AJ, Mann S. Fabrication of polypyrrole nano-arrays in lysozyme single crystals. NANOSCALE 2012; 4:6710-6713. [PMID: 23018811 DOI: 10.1039/c2nr32413j] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
A template-directed method for the synthesis and organization of partially oxidized polypyrrole (PPy) nanoscale arrays within the solvent channels of glutaraldehyde-cross-linked lysozyme single crystals is presented. Macroscopic single crystals of the periodically arranged protein-polymer superstructure are electrically conductive, insoluble in water and organic solvents, and display increased levels of mechanical plasticity compared with native cross-linked lysozyme crystals.
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Affiliation(s)
- Matt W England
- Centre for Organized Matter Chemistry, School of Chemistry, University of Bristol, Bristol, BS8 1TS, UK
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102
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Xue T, Loo LS, Wang X, Kyu Kwak S, Lee JM. Electrodeposition of mesoporous bilayers of polyaniline supported Cu2O semiconductor films from Lyotropic Liquid Crystalline phase. Chem Eng Sci 2012. [DOI: 10.1016/j.ces.2012.06.029] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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103
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Chen X, Hong CY, Lin YH, Chen JH, Chen GN, Yang HH. Enzyme-Free and Label-Free Ultrasensitive Electrochemical Detection of Human Immunodeficiency Virus DNA in Biological Samples Based on Long-Range Self-Assembled DNA Nanostructures. Anal Chem 2012; 84:8277-83. [DOI: 10.1021/ac3017828] [Citation(s) in RCA: 116] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Xian Chen
- The Key Lab of Analysis and Detection
Technology for Food Safety of the MOE, Fujian Provincial Key Laboratory
of Analysis and Detection Technology for Food Safety, College of Chemistry
and Chemical Engineering, Fuzhou University, Fuzhou 350108, China
| | - Cheng-Yi Hong
- The Key Lab of Analysis and Detection
Technology for Food Safety of the MOE, Fujian Provincial Key Laboratory
of Analysis and Detection Technology for Food Safety, College of Chemistry
and Chemical Engineering, Fuzhou University, Fuzhou 350108, China
| | - Ya-Hui Lin
- The Key Lab of Analysis and Detection
Technology for Food Safety of the MOE, Fujian Provincial Key Laboratory
of Analysis and Detection Technology for Food Safety, College of Chemistry
and Chemical Engineering, Fuzhou University, Fuzhou 350108, China
| | - Jing-Hua Chen
- The Key Lab of Analysis and Detection
Technology for Food Safety of the MOE, Fujian Provincial Key Laboratory
of Analysis and Detection Technology for Food Safety, College of Chemistry
and Chemical Engineering, Fuzhou University, Fuzhou 350108, China
- Department of Pharmaceutical Analysis, Faculty of Pharmacy, Fujian Medical University, Fuzhou 350004, China
| | - Guo-Nan Chen
- The Key Lab of Analysis and Detection
Technology for Food Safety of the MOE, Fujian Provincial Key Laboratory
of Analysis and Detection Technology for Food Safety, College of Chemistry
and Chemical Engineering, Fuzhou University, Fuzhou 350108, China
| | - Huang-Hao Yang
- The Key Lab of Analysis and Detection
Technology for Food Safety of the MOE, Fujian Provincial Key Laboratory
of Analysis and Detection Technology for Food Safety, College of Chemistry
and Chemical Engineering, Fuzhou University, Fuzhou 350108, China
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104
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Carrara S, Ghoreishizadeh S, Olivo J, Taurino I, Baj-Rossi C, Cavallini A, de Beeck MO, Dehollain C, Burleson W, Moussy FG, Guiseppi-Elie A, De Micheli G. Fully integrated biochip platforms for advanced healthcare. SENSORS (BASEL, SWITZERLAND) 2012; 12:11013-60. [PMID: 23112644 PMCID: PMC3472872 DOI: 10.3390/s120811013] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/19/2012] [Revised: 07/10/2012] [Accepted: 07/17/2012] [Indexed: 01/07/2023]
Abstract
Recent advances in microelectronics and biosensors are enabling developments of innovative biochips for advanced healthcare by providing fully integrated platforms for continuous monitoring of a large set of human disease biomarkers. Continuous monitoring of several human metabolites can be addressed by using fully integrated and minimally invasive devices located in the sub-cutis, typically in the peritoneal region. This extends the techniques of continuous monitoring of glucose currently being pursued with diabetic patients. However, several issues have to be considered in order to succeed in developing fully integrated and minimally invasive implantable devices. These innovative devices require a high-degree of integration, minimal invasive surgery, long-term biocompatibility, security and privacy in data transmission, high reliability, high reproducibility, high specificity, low detection limit and high sensitivity. Recent advances in the field have already proposed possible solutions for several of these issues. The aim of the present paper is to present a broad spectrum of recent results and to propose future directions of development in order to obtain fully implantable systems for the continuous monitoring of the human metabolism in advanced healthcare applications.
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Affiliation(s)
- Sandro Carrara
- École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland; E-Mails: (S.S.G.); (J.O.); (I.T.); (C.B.-R.); (A.C.); (C.D.); (G.D.M.)
| | - Sara Ghoreishizadeh
- École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland; E-Mails: (S.S.G.); (J.O.); (I.T.); (C.B.-R.); (A.C.); (C.D.); (G.D.M.)
| | - Jacopo Olivo
- École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland; E-Mails: (S.S.G.); (J.O.); (I.T.); (C.B.-R.); (A.C.); (C.D.); (G.D.M.)
| | - Irene Taurino
- École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland; E-Mails: (S.S.G.); (J.O.); (I.T.); (C.B.-R.); (A.C.); (C.D.); (G.D.M.)
| | - Camilla Baj-Rossi
- École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland; E-Mails: (S.S.G.); (J.O.); (I.T.); (C.B.-R.); (A.C.); (C.D.); (G.D.M.)
| | - Andrea Cavallini
- École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland; E-Mails: (S.S.G.); (J.O.); (I.T.); (C.B.-R.); (A.C.); (C.D.); (G.D.M.)
| | - Maaike Op de Beeck
- Interuniversity Microelectronics Centre (IMEC), B-3001 Leuven, Belgium; E-Mail:
| | - Catherine Dehollain
- École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland; E-Mails: (S.S.G.); (J.O.); (I.T.); (C.B.-R.); (A.C.); (C.D.); (G.D.M.)
| | - Wayne Burleson
- Department of Electrical and Computer Engineering, University of Massachusetts, Amherst, MA 01003, USA; E-Mail:
| | - Francis Gabriel Moussy
- Brunel Institute for Bioengineering, University of Brunel, West London, UB8 3PH, UK; E-Mail:
| | - Anthony Guiseppi-Elie
- Department of Electrical and Computer Engineering, Center for Bioelectronics, Biosensors and Biochips, Clemson University, Anderson, SC 29625, USA; E-Mail:
- ABTECH Scientific, Inc., Richmond, VA 23219, USA
| | - Giovanni De Micheli
- École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland; E-Mails: (S.S.G.); (J.O.); (I.T.); (C.B.-R.); (A.C.); (C.D.); (G.D.M.)
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105
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Engineering graphene/carbon nanotube hybrid for direct electron transfer of glucose oxidase and glucose biosensor. J APPL ELECTROCHEM 2012. [DOI: 10.1007/s10800-012-0461-x] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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106
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Zagal JH, Griveau S, Santander-Nelli M, Granados SG, Bedioui F. Carbon nanotubes and metalloporphyrins and metallophthalocyanines-based materials for electroanalysis. J PORPHYR PHTHALOCYA 2012. [DOI: 10.1142/s1088424612300054] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
We discuss here the state of the art on hybrid materials made from single (SWCNT) or multi (MWCNT) walled carbon nanotubes and MN4complexes such as metalloporphyrins and metallophthalocyanines. The hybrid materials have been characterized by several methods such as cyclic voltammetry (CV), scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), atomic force microscopy (AFM) and scanning electrochemical microscropy (SECM). The materials are employed for electrocatalysis of reactions such as oxygen and hydrogen peroxide reduction, nitric oxide oxidation, oxidation of thiols and other pollutants.
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Affiliation(s)
- José H. Zagal
- Universidad de Santiago de Chile, Departamento de Quimica de los Materiales, Facultad de Quimica y Biologia, Casilla 40, Correo 33, Santiago 9170022, Chile
| | - Sophie Griveau
- Chimie ParisTech, Unité de Pharmacologie Chimique et Génétique et Imagerie, 11 rue Pierre et Marie Curie, 75005 Paris, France
- CNRS, UMR 8151, 75005 Paris, France
- Université Paris Descartes, 75006 Paris, France
- INSERM, U1022, 75005 Paris, France
| | - Mireya Santander-Nelli
- Universidad de Santiago de Chile, Departamento de Quimica de los Materiales, Facultad de Quimica y Biologia, Casilla 40, Correo 33, Santiago 9170022, Chile
| | - Silvia Gutierrez Granados
- Universidad de Guanajuato, División de Ciencias Naturales y Exactas, Departamento de Química, Guanajuato, Mexico
| | - Fethi Bedioui
- Chimie ParisTech, Unité de Pharmacologie Chimique et Génétique et Imagerie, 11 rue Pierre et Marie Curie, 75005 Paris, France
- CNRS, UMR 8151, 75005 Paris, France
- Université Paris Descartes, 75006 Paris, France
- INSERM, U1022, 75005 Paris, France
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107
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Gao X, Jin L, Wu Q, Chen Z, Lin X. A Nonenzymatic Hydrogen Peroxide Sensor Based on Silver Nanowires and Chitosan Film. ELECTROANAL 2012. [DOI: 10.1002/elan.201200109] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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108
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Engineered multifunctional nanowires as novel biosensing tools for highly sensitive detection. APPLIED NANOSCIENCE 2012. [DOI: 10.1007/s13204-012-0142-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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109
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Electro-synthesis and characterization of polythiophene nano-wires/platinum nano-particles composite electrodes. Study of formic acid electro-catalytic oxidation. Electrochim Acta 2012. [DOI: 10.1016/j.electacta.2012.04.001] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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110
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Brown DA, Kim JH, Lee HB, Fotouhi G, Lee KH, Liu WK, Chung JH. Electric field guided assembly of one-dimensional nanostructures for high performance sensors. SENSORS (BASEL, SWITZERLAND) 2012; 12:5725-51. [PMID: 22778610 PMCID: PMC3386709 DOI: 10.3390/s120505725] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/29/2012] [Revised: 04/12/2012] [Accepted: 05/02/2012] [Indexed: 11/18/2022]
Abstract
Various nanowire or nanotube-based devices have been demonstrated to fulfill the anticipated future demands on sensors. To fabricate such devices, electric field-based methods have demonstrated a great potential to integrate one-dimensional nanostructures into various forms. This review paper discusses theoretical and experimental aspects of the working principles, the assembled structures, and the unique functions associated with electric field-based assembly. The challenges and opportunities of the assembly methods are addressed in conjunction with future directions toward high performance sensors.
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Affiliation(s)
- Devon A. Brown
- Department of Mechanical Engineering, University of Washington, Box 352600, Seattle, WA 98195, USA; E-Mails: (D.A.B.); (J.-H.K.); (H.-B.L.); (G.F.)
| | - Jong-Hoon Kim
- Department of Mechanical Engineering, University of Washington, Box 352600, Seattle, WA 98195, USA; E-Mails: (D.A.B.); (J.-H.K.); (H.-B.L.); (G.F.)
| | - Hyun-Boo Lee
- Department of Mechanical Engineering, University of Washington, Box 352600, Seattle, WA 98195, USA; E-Mails: (D.A.B.); (J.-H.K.); (H.-B.L.); (G.F.)
| | - Gareth Fotouhi
- Department of Mechanical Engineering, University of Washington, Box 352600, Seattle, WA 98195, USA; E-Mails: (D.A.B.); (J.-H.K.); (H.-B.L.); (G.F.)
| | - Kyong-Hoon Lee
- NanoFacture, Inc., P.O. Box 52651, Bellevue, WA 98015, USA; E-Mail:
| | - Wing Kam Liu
- Department of Mechanical Engineering, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208, USA; E-Mail:
- World Class University (WCU) Program, School of Mechanical Engineering, Sungkyunkwan University, 300 Cheoncheon Suwon, 440-746, Korea
| | - Jae-Hyun Chung
- Department of Mechanical Engineering, University of Washington, Box 352600, Seattle, WA 98195, USA; E-Mails: (D.A.B.); (J.-H.K.); (H.-B.L.); (G.F.)
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111
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Shim JS, Ahn CH. Optical immunosensor using carbon nanotubes coated with a photovoltaic polymer. Biosens Bioelectron 2012; 34:208-14. [DOI: 10.1016/j.bios.2012.02.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2011] [Revised: 01/29/2012] [Accepted: 02/06/2012] [Indexed: 11/27/2022]
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112
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Jia Q, Shan S, Jiang L, Wang Y, Li D. Synergistic antimicrobial effects of polyaniline combined with silver nanoparticles. J Appl Polym Sci 2012. [DOI: 10.1002/app.36257] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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113
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Eltzov E, Cosnier S, Marks RS. Biosensors based on combined optical and electrochemical transduction for molecular diagnostics. Expert Rev Mol Diagn 2012; 11:533-46. [PMID: 21707461 DOI: 10.1586/erm.11.38] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Electrochemical and optical biosensors exist to monitor different fluids containing analytes of interest. Until today, these have been developed separately. Owing to the creation of new transducer configurations such as indium tin-coated glass fiber optics, these methods can now be used separately, in parallel and it is hoped that one day they will be able to be used simultaneously; thus, using the same probe to measure a single analyte using two different methods (electrochemical and optical) or two different analytes with either of the aforementioned methods sitting on the same probe. This article will highlight the importance, as well as the usefulness, of combining measurement methodologies in improving sensor response and sensitivity.
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Affiliation(s)
- Evgeni Eltzov
- Unit of Environmental Engineering, Ben-Gurion University of the Negev, Beer-Sheva, Israel
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114
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Marín S, Merkoçi A. Nanomaterials Based Electrochemical Sensing Applications for Safety and Security. ELECTROANAL 2012. [DOI: 10.1002/elan.201100576] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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115
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Kurkina T, Balasubramanian K. Towards in vitro molecular diagnostics using nanostructures. Cell Mol Life Sci 2012; 69:373-88. [PMID: 22009454 PMCID: PMC11115035 DOI: 10.1007/s00018-011-0855-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2011] [Revised: 09/29/2011] [Accepted: 09/29/2011] [Indexed: 10/16/2022]
Abstract
Nanostructures appear to be promising for a number of applications in molecular diagnostics, mainly due to the increased surface-to-volume ratio they can offer, the very low limit of detection achievable, and the possibility to fabricate point-of-care diagnostic devices. In this paper, we review examples of the use of nanostructures as diagnostic tools that bring in marked improvements over prevalent classical assays. The focus is laid on the various sensing paradigms that possess the potential or have demonstrated the capability to replace or augment current analytical strategies. We start with a brief introduction of the various types of nanostructures and their physical properties that determine the transduction principle. This is followed by a concise collection of various functionalization protocols used to immobilize biomolecules on the nanostructure surface. The sensing paradigms are discussed in two contexts: the nanostructure acting as a label for detection, or the nanostructure acting as a support upon which the molecular recognition events take place. In order to be successful in the field of molecular diagnostics, it is important that the nanoanalytical tools be evaluated in the appropriate biological environment. The final section of the review compiles such examples, where the nanostructure-based diagnostic tools have been tested on realistic samples such as serum, demonstrating their analytical power even in the presence of complex matrix effects. The ability of nanodiagnostic tools to detect ultralow concentrations of one or more analytes coupled with portability and the use of low sample volumes is expected to have a broad impact in the field of molecular diagnostics.
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Affiliation(s)
- Tetiana Kurkina
- Max-Planck-Institute for Solid State Research, Heisenbergstrasse 1, 70569 Stuttgart, Germany
| | - Kannan Balasubramanian
- Max-Planck-Institute for Solid State Research, Heisenbergstrasse 1, 70569 Stuttgart, Germany
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116
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Chen Y, Vedala H, Kotchey GP, Audfray A, Cecioni S, Imberty A, Vidal S, Star A. Electronic detection of lectins using carbohydrate-functionalized nanostructures: graphene versus carbon nanotubes. ACS NANO 2012; 6:760-70. [PMID: 22136380 PMCID: PMC3265614 DOI: 10.1021/nn2042384] [Citation(s) in RCA: 77] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Here we investigated the interactions between lectins and carbohydrates using field-effect transistor (FET) devices comprised of chemically converted graphene (CCG) and single-walled carbon nanotubes (SWNTs). Pyrene- and porphyrin-based glycoconjugates were functionalized noncovalently on the surface of CCG-FET and SWNT-FET devices, which were then treated with 2 μM nonspecific and specific lectins. In particular, three different lectins (PA-IL, PA-IIL, and ConA) and three carbohydrate epitopes (galactose, fucose, and mannose) were tested. The responses of 36 different devices were compared and rationalized using computer-aided models of carbon nanostructure/glycoconjugate interactions. Glycoconjugate surface coverage in addition to one-dimensional structures of SWNTs resulted in optimal lectin detection. Additionally, lectin titration data of SWNT- and CCG-based biosensors were used to calculate lectin dissociation constants (K(d)) and compare them to the values obtained from the isothermal titration microcalorimetry technique.
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Affiliation(s)
- Yanan Chen
- Department of Chemistry, University of Pittsburgh, 219 Parkman Avenue, Pittsburgh, PA 15260, USA
| | - Harindra Vedala
- Department of Chemistry, University of Pittsburgh, 219 Parkman Avenue, Pittsburgh, PA 15260, USA
| | - Gregg P. Kotchey
- Department of Chemistry, University of Pittsburgh, 219 Parkman Avenue, Pittsburgh, PA 15260, USA
| | - Aymeric Audfray
- CERMAV - CNRS, affiliated with Université Joseph Fourier and ICMG, BP 53, 38041, Grenoble, France
| | - Samy Cecioni
- CERMAV - CNRS, affiliated with Université Joseph Fourier and ICMG, BP 53, 38041, Grenoble, France
- Institut de Chimie et Biochimie Moléculaires et Supramoléculaires, Laboratoire de Chimie Organique 2 – Glycochimie, UMR 5246, CNRS, Université Claude Bernard Lyon 1, 43 Boulevard du 11 Novembre 1918, F-69622, Villeurbanne, France
| | - Anne Imberty
- CERMAV - CNRS, affiliated with Université Joseph Fourier and ICMG, BP 53, 38041, Grenoble, France
| | - Sébastien Vidal
- Institut de Chimie et Biochimie Moléculaires et Supramoléculaires, Laboratoire de Chimie Organique 2 – Glycochimie, UMR 5246, CNRS, Université Claude Bernard Lyon 1, 43 Boulevard du 11 Novembre 1918, F-69622, Villeurbanne, France
| | - Alexander Star
- Department of Chemistry, University of Pittsburgh, 219 Parkman Avenue, Pittsburgh, PA 15260, USA
- Corresponding author footnote:
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117
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Liu Y, Dong X, Chen P. Biological and chemical sensors based on graphene materials. Chem Soc Rev 2012; 41:2283-307. [DOI: 10.1039/c1cs15270j] [Citation(s) in RCA: 1399] [Impact Index Per Article: 116.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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118
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Egatz-Gomez A, Majithia R, Levert C, Meissner KE. Super-wetting, wafer-sized silicon nanowire surfaces with hierarchical roughness and low defects. RSC Adv 2012. [DOI: 10.1039/c2ra22267a] [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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119
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One-step synthesis of 3D dendritic gold@polypyrrole nanocomposites via a simple self-assembly method and their electrocatalysis for H2O2. Electrochim Acta 2012. [DOI: 10.1016/j.electacta.2011.11.003] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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120
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Ultrasensitive and selective non-enzymatic glucose detection using copper nanowires. Biosens Bioelectron 2012; 31:426-32. [DOI: 10.1016/j.bios.2011.11.006] [Citation(s) in RCA: 246] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2011] [Revised: 11/03/2011] [Accepted: 11/04/2011] [Indexed: 11/19/2022]
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121
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Lee SH, Sung JH, Park TH. Nanomaterial-Based Biosensor as an Emerging Tool for Biomedical Applications. Ann Biomed Eng 2011; 40:1384-97. [DOI: 10.1007/s10439-011-0457-4] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2011] [Accepted: 10/21/2011] [Indexed: 12/15/2022]
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122
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Duan BK, Zhang J, Bohn PW. Conductance-Based Chemical Sensing in Metallic Nanowires and Metal-Semiconductor Nanostructures. Anal Chem 2011; 84:2-8. [DOI: 10.1021/ac201240w] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Barrett K. Duan
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Jingying Zhang
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Paul W. Bohn
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
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123
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Conducting polymer nanowires-based label-free biosensors. Curr Opin Biotechnol 2011; 22:502-8. [DOI: 10.1016/j.copbio.2011.05.508] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2011] [Revised: 05/17/2011] [Accepted: 05/18/2011] [Indexed: 12/29/2022]
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124
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Niu Y, Jin G. Protein microarray biosensors based on imaging ellipsometry techniques and their applications. Protein Cell 2011; 2:445-55. [PMID: 21748594 PMCID: PMC4875174 DOI: 10.1007/s13238-011-1054-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2011] [Accepted: 05/12/2011] [Indexed: 11/06/2022] Open
Abstract
After years of development, biosensors based on imaging ellipsometry and biosensors based on total internal reflection imaging ellipsometry have been successfully implemented in various engineering systems. Their experimental setups, detection principles, and biological and clinical applications are briefly reviewed.
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Affiliation(s)
- Yu Niu
- NML, Institute of Mechanics, Chinese Academy of Sciences, Beijing, China
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125
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Nirschl M, Reuter F, Vörös J. Review of transducer principles for label-free biomolecular interaction analysis. BIOSENSORS 2011; 1:70-92. [PMID: 25586921 PMCID: PMC4264362 DOI: 10.3390/bios1030070] [Citation(s) in RCA: 81] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/19/2011] [Revised: 06/18/2011] [Accepted: 06/29/2011] [Indexed: 01/12/2023]
Abstract
Label-free biomolecular interaction analysis is an important technique to study the chemical binding between e.g., protein and protein or protein and small molecule in real-time. The parameters obtained with this technique, such as the affinity, are important for drug development. While the surface plasmon resonance (SPR) instruments are most widely used, new types of sensors are emerging. These developments are generally driven by the need for higher throughput, lower sample consumption or by the need of complimentary information to the SPR data. This review aims to give an overview about a wide range of sensor transducers, the working principles and the peculiarities of each technology, e.g., concerning the set-up, sensitivity, sensor size or required sample volume. Starting from optical technologies like the SPR and waveguide based sensors, acoustic sensors like the quartz crystal microbalance (QCM) and the film bulk acoustic resonator (FBAR), calorimetric and electrochemical sensors are covered. Technologies long established in the market are presented together with those newly commercially available and with technologies in the early development stage. Finally, the commercially available instruments are summarized together with their sensitivity and the number of sensors usable in parallel and an outlook for potential future developments is given.
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Affiliation(s)
- Martin Nirschl
- Laboratory of Biosensors and Bioelectronics, Institute for Biomedical Engineering, ETH Zurich, Switzerland.
| | - Florian Reuter
- Siemens Technology Accelerator GmbH, Otto-Hahn-Ring 6, 81739 Munich, Germany.
| | - Janos Vörös
- Laboratory of Biosensors and Bioelectronics, Institute for Biomedical Engineering, ETH Zurich, Switzerland.
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126
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Protein biosensors based on polymer nanowires, carbon nanotubes and zinc oxide nanorods. SENSORS 2011; 11:5087-111. [PMID: 22163892 PMCID: PMC3231366 DOI: 10.3390/s110505087] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/13/2011] [Revised: 05/03/2011] [Accepted: 05/05/2011] [Indexed: 11/17/2022]
Abstract
The development of biosensors using electrochemical methods is a promising application in the field of biotechnology. High sensitivity sensors for the bio-detection of proteins have been developed using several kinds of nanomaterials. The performance of the sensors depends on the type of nanostructures with which the biomaterials interact. One dimensional (1-D) structures such as nanowires, nanotubes and nanorods are proven to have high potential for bio-applications. In this paper we review these three different kinds of nanostructures that have attracted much attention at recent times with their great performance as biosensors. Materials such as polymers, carbon and zinc oxide have been widely used for the fabrication of nanostructures because of their enhanced performance in terms of sensitivity, biocompatibility, and ease of preparation. Thus we consider polymer nanowires, carbon nanotubes and zinc oxide nanorods for discussion in this paper. We consider three stages in the development of biosensors: (a) fabrication of biomaterials into nanostructures, (b) alignment of the nanostructures and (c) immobilization of proteins. Two different methods by which the biosensors can be developed at each stage for all the three nanostructures are examined. Finally, we conclude by mentioning some of the major challenges faced by many researchers who seek to fabricate biosensors for real time applications.
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127
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Deepshikha, Basu T. A Review on Synthesis and Characterization of Nanostructured Conducting Polymers (NSCP) and Application in Biosensors. ANAL LETT 2011. [DOI: 10.1080/00032719.2010.511734] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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128
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Kurkina T, Vlandas A, Ahmad A, Kern K, Balasubramanian K. Label-free detection of few copies of DNA with carbon nanotube impedance biosensors. Angew Chem Int Ed Engl 2011; 50:3710-4. [PMID: 21425218 DOI: 10.1002/anie.201006806] [Citation(s) in RCA: 80] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2010] [Revised: 02/07/2011] [Indexed: 11/06/2022]
Affiliation(s)
- Tetiana Kurkina
- Max-Planck-Institut für Festkörperforschung, Heisenbergstrasse 1, 70569 Stuttgart, Germany
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129
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Kurkina T, Vlandas A, Ahmad A, Kern K, Balasubramanian K. Label-Free Detection of Few Copies of DNA with Carbon Nanotube Impedance Biosensors. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201006806] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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130
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Hyun Seok, Park TH. Integration of biomolecules and nanomaterials: Towards highly selective and sensitive biosensors. Biotechnol J 2011; 6:1310-6. [DOI: 10.1002/biot.201100006] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2011] [Revised: 02/10/2011] [Accepted: 02/10/2011] [Indexed: 01/15/2023]
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131
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Liu C, Hayashi K, Toko K. Template-Free Deposition of Polyaniline Nanostructures on Solid Substrates with Horizontal Orientation. Macromolecules 2011. [DOI: 10.1021/ma1023878] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Chuanjun Liu
- Department of Electronics, Graduate School of Information Science and Electrical Engineering, Kyushu University, 744, Motooka, Nishiku, Fukuoka 819-0395, Japan
| | - Kenshi Hayashi
- Department of Electronics, Graduate School of Information Science and Electrical Engineering, Kyushu University, 744, Motooka, Nishiku, Fukuoka 819-0395, Japan
| | - Kiyoshi Toko
- Department of Electronics, Graduate School of Information Science and Electrical Engineering, Kyushu University, 744, Motooka, Nishiku, Fukuoka 819-0395, Japan
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132
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Chen CP, Ganguly A, Lu CY, Chen TY, Kuo CC, Chen RS, Tu WH, Fischer WB, Chen KH, Chen LC. Ultrasensitive in situ label-free DNA detection using a GaN nanowire-based extended-gate field-effect-transistor sensor. Anal Chem 2011; 83:1938-43. [PMID: 21351780 DOI: 10.1021/ac102489y] [Citation(s) in RCA: 120] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In this study, we have successfully demonstrated that a GaN nanowire (GaNNW) based extended-gate field-effect-transistor (EGFET) biosensor is capable of specific DNA sequence identification under label-free in situ conditions. Our approach shows excellent integration of the wide bandgap semiconducting nature of GaN, surface-sensitivity of the NW-structure, and high transducing performance of the EGFET-design. The simple sensor-architecture, by direct assembly of as-synthesized GaNNWs with a commercial FET device, can achieve an ultrahigh detection limit below attomolar level concentrations: about 3 orders of magnitude higher in resolution than that of other FET-based DNA-sensors. Comparative in situ studies on mismatches ("hotspot" mutations related to human p53 tumor-suppressor gene) and complementary targets reveal excellent selectivity and specificity of the sensor, even in the presence of noncomplementary DNA strands, suggesting the potential pragmatic application in complex clinical samples. In comparison with GaN thin film, NW-based EGFET exhibits excellent performance with about 2 orders higher sensitivity, over a wide detection range, 10(-19)-10(-6) M, reaching about a 6-orders lower detection limit. Investigations illustrate the unique and distinguished feature of nanomaterials. Detailed studies indicate a positive effect of energy band alignment at the biomaterials-semiconductor hybrid interface influencing the effective capacitance and carrier-mobility of the system.
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Affiliation(s)
- Chin-Pei Chen
- Center for Condensed Matter Sciences, National Taiwan University, Taipei 106, Taiwan
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133
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Lange U, Mirsky VM. Chemiresistors based on conducting polymers: A review on measurement techniques. Anal Chim Acta 2011; 687:105-13. [DOI: 10.1016/j.aca.2010.11.030] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2010] [Revised: 11/11/2010] [Accepted: 11/12/2010] [Indexed: 10/18/2022]
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134
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Das M, Dhand C, Sumana G, Srivastava AK, Nagarajan R, Nain L, Iwamoto M, Manaka T, Malhotra BD. Electrophoretic fabrication of chitosan-zirconium-oxide nanobiocomposite platform for nucleic acid detection. Biomacromolecules 2011; 12:540-7. [PMID: 21218766 DOI: 10.1021/bm1013074] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The present work describes electrophoretic fabrication of nanostructured chitosan-zirconium-oxide composite (CHIT-NanoZrO(2)) film (180 nm) onto indium-tin-oxide (ITO)-coated glass plate. This nanobiocomposite film has been explored as immobilization platform for probe DNA specific to M. Tuberculosis as model biomolecule to investigate its sensing characteristics. It is revealed that pH-responsive behavior of CHIT and its cationic skeleton is responsible for the movement of CHIT-NanoZrO(2) colloids toward cathode during electrophoretic deposition. The FT-IR, SEM, TEM, and EDX techniques have been employed for the structural, morphological, and composition analysis of the fabricated electrodes. The morphological studies clearly reveal uniform inter-linking and dispersion of hexagonal nanograins of ZrO(2) (30-50 nm) into the chitosan matrix, resulting in homogeneous nanobiocomposite formation. Electrochemical response measurements of DNA/CHIT-NanoZrO(2)/ITO bioelectrode, carried out using cyclic voltammetry and differential pulse voltammetry, reveal that this bioelectrode can specifically detect complementary target DNA up to 0.00078 μM with sensitivity of 6.38 × 10(-6) AμM(-1).
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Affiliation(s)
- Maumita Das
- Department of Science & Technology Centre on Biomolecular Electronics, Biomedical Instrumentation Section, Materials Physics & Engineering Division, National Physical Laboratory, Dr. K. S. Krishnan Marg, New Delhi-110012, India
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135
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Highly sensitive single polyaniline nanowire biosensor for the detection of immunoglobulin G and myoglobin. Biosens Bioelectron 2011; 26:3297-302. [PMID: 21269820 DOI: 10.1016/j.bios.2011.01.001] [Citation(s) in RCA: 82] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2010] [Revised: 12/15/2010] [Accepted: 01/04/2011] [Indexed: 11/24/2022]
Abstract
A single polyaniline (PANI) nanowire-based biosensor was established to detect immunoglobulin G (IgG) and myoglobin (Myo), which is one of the cardiac biomarkers. The single PANI nanowires were fabricated via an electrochemical growth method, in which single nanowires were formed between a pair of patterned electrodes. The single PANI nanowires were functionalized with monoclonal antibodies (mAbs) of IgG or Myo via a surface immobilization method, using 1-ethyl-3-(3-dimethyaminopropyl) carbodiimide (EDC), and N-hydroxysuccinimde (NHS). The functionalization was then verified by Raman spectroscopy and fluorescence microscopy. The target proteins of IgG and Myo were detected by measuring the conductance change of functionalized single PANI nanowires owing to the capturing of target proteins by mAbs. The detection limit was found to be 3 ng/mL for IgG and 1.4 ng/mL for Myo. No response was observed when single nanowires were exposed to a non-specific protein, demonstrating excellent specificity to expected target detection. Together with the fast response time (a few seconds), high sensitivity, and good specificity, this single PANI nanowire-based biosensor shows great promise in the detection of cardiac markers and other proteins.
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136
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Velázquez DG, Orive AG, Creus AH, Luque R, Ravelo ÁG. Novel organogelators based on amine-derived hexaazatrinaphthylene. Org Biomol Chem 2011; 9:6524-7. [DOI: 10.1039/c1ob05811h] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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137
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Feigel IM, Vedala H, Star A. Biosensors based on one-dimensional nanostructures. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c1jm10521c] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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138
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Masood MN, Chen S, Carlen ET, van den Berg A. All-(111) surface silicon nanowires: selective functionalization for biosensing applications. ACS APPLIED MATERIALS & INTERFACES 2010; 2:3422-3428. [PMID: 21090766 DOI: 10.1021/am100922e] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
We demonstrate the utilization of selective functionalization of carbon-silicon (C-Si) alkyl and alkenyl monolayers covalently linked to all-(111) surface silicon nanowire (Si-NW) biosensors. Terminal amine groups on the functional monolayer surfaces were used for conjugation of biotin n-hydroxysuccinimide ester. The selective functionalization is demonstrated by contact angle, X-ray photoelectron spectroscopy (XPS), and high-resolution scanning electron microscopy (HRSEM) of 5 nm diameter thiolated Au nanoparticles linked with streptavidin and conjugated to the biotinylated all-(111) surface Si-NWs. Electrical measurements of monolayer passivated Si-NWs show improved device behavior and performance. Furthermore, an analytical model is presented to demonstrate the improvement in detection sensitivity of the alkyl and alkenyl passivated all-(111) Si-NW biosensors compared to conventional nanowire biosensor geometries and silicon dioxide passivation layers as well as interface design and electrical biasing guidelines for depletion-mode sensors.
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139
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Challenges in the use of 1D nanostructures for on-chip biosensing and diagnostics: A review. Biosens Bioelectron 2010; 26:1195-204. [DOI: 10.1016/j.bios.2010.07.041] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2010] [Revised: 07/10/2010] [Accepted: 07/12/2010] [Indexed: 12/27/2022]
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140
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Affiliation(s)
- Rahul Bhure
- Center for Materials Research (CMR), Center for Biotechnology and Biomedical Sciences (CBBS), Department of Chemistry, Norfolk State University (NSU), Norfolk, VA 23504
| | - Anil Mahapatro
- Center for Materials Research (CMR), Center for Biotechnology and Biomedical Sciences (CBBS), Department of Chemistry, Norfolk State University (NSU), Norfolk, VA 23504
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141
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MacKenzie R, Fraschina C, Sannomiya T, Auzelyte V, Vörös J. Optical sensing with simultaneous electrochemical control in metal nanowire arrays. SENSORS (BASEL, SWITZERLAND) 2010; 10:9808-30. [PMID: 22163441 PMCID: PMC3231022 DOI: 10.3390/s101109808] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/15/2010] [Revised: 10/10/2010] [Accepted: 10/15/2010] [Indexed: 02/04/2023]
Abstract
This work explores the alternative use of noble metal nanowire systems in large-scale array configurations to exploit both the nanowires' conductive nature and localized surface plasmon resonance (LSPR). The first known nanowire-based system has been constructed, with which optical signals are influenced by the simultaneous application of electrochemical potentials. Optical characterization of nanowire arrays was performed by measuring the bulk refractive index sensitivity and the limit of detection. The formation of an electrical double layer was controlled in NaCl solutions to study the effect of local refractive index changes on the spectral response. Resonance peak shifts of over 4 nm, a bulk refractive index sensitivity up to 115 nm/RIU and a limit of detection as low as 4.5 × 10(-4) RIU were obtained for gold nanowire arrays. Simulations with the Multiple Multipole Program (MMP) confirm such bulk refractive index sensitivities. Initial experiments demonstrated successful optical biosensing using a novel form of particle-based nanowire arrays. In addition, the formation of an ionic layer (Stern-layer) upon applying an electrochemical potential was also monitored by the shift of the plasmon resonance.
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Affiliation(s)
- Robert MacKenzie
- Laboratory of Biosensors and Bioelectronics, ETH Zurich, Gloriastrasse 35, 8092 Zurich, Switzerland
| | - Corrado Fraschina
- Laboratory of Biosensors and Bioelectronics, ETH Zurich, Gloriastrasse 35, 8092 Zurich, Switzerland
| | - Takumi Sannomiya
- Laboratory of Biosensors and Bioelectronics, ETH Zurich, Gloriastrasse 35, 8092 Zurich, Switzerland
| | - Vaida Auzelyte
- Laboratory for Micro-/Nano-technology, Paul Scherrer Institute (PSI), 5232 Villigen, Switzerland
| | - Janos Vörös
- Laboratory of Biosensors and Bioelectronics, ETH Zurich, Gloriastrasse 35, 8092 Zurich, Switzerland
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142
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Rezaei B, Damiri S. Electrodeposited silver nanodendrites electrode with strongly enhanced electrocatalytic activity. Talanta 2010; 83:197-204. [DOI: 10.1016/j.talanta.2010.09.006] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2010] [Revised: 09/06/2010] [Accepted: 09/06/2010] [Indexed: 10/19/2022]
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143
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Callegari V, Demoustier-Champagne S. Using the Hard Templating Method for the Synthesis of Metal-Conducting Polymer Multi-Segmented Nanowires. Macromol Rapid Commun 2010; 32:25-34. [DOI: 10.1002/marc.201000486] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2010] [Revised: 09/06/2010] [Indexed: 11/09/2022]
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144
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The increasing importance of carbon nanotubes and nanostructured conducting polymers in biosensors. Anal Bioanal Chem 2010; 398:1575-89. [DOI: 10.1007/s00216-010-4054-4] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2010] [Revised: 07/17/2010] [Accepted: 07/20/2010] [Indexed: 11/26/2022]
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145
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Yeh JI, Shi H. Nanoelectrodes for biological measurements. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2010; 2:176-88. [PMID: 20073052 DOI: 10.1002/wnan.70] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Nanoelectrodes are electrodes with a critical dimension in the range of one to hundreds of nanometers and include individual electrodes, nanoelectrode ensembles, and arrays. Metallic nanowires, carbon nanotubes, magnetic nanoparticles, and metal oxide nanowires have been employed to fabricate nanoelectrodes and platforms. In this review, applications of single electrodes, nanoelectrode arrays, and ensembles are briefly evaluated, with emphasis on biological analysis. Nanoelectrodes offer great advantages in numerous areas of biological investigations, particularly in single cells studies, fabrication of microchips, design of coordinated biosensors, and in addressable patterned electrodes. Consequently, nanoelectrodes have immense potential in the development of efficient, specific, sensitive, and intelligent sensors. In conjunction with the rapidly evolving, cost-effective fabrication and materials development approaches, these sensors can be used as direct, point-of-care clinical devices, enabling more personalized medical care. The development and application of nanodevices in biology and medicine will have enormous implications for society and human health.
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Affiliation(s)
- Joanne I Yeh
- Department of Structural Biology and Department of Bioengineering, University of Pittsburgh Medical School, BST3 1040, 3501 5th Avenue, Pittsburgh, PA 15260, USA.
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146
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Tlili C, Cella LN, Myung NV, Shetty V, Mulchandani A. Single-walled carbon nanotube chemoresistive label-free immunosensor for salivary stress biomarkers. Analyst 2010; 135:2637-42. [PMID: 20694207 DOI: 10.1039/c0an00332h] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The present work is focused on the development, analytical characterization and evaluation of selective and sensitive SWNT-chemiresistor immunosensor for the label-free detection of salivary α-amylase (SAA). SWNTs were aligned to bridge lithographically patterned gold microelectrodes using AC dielectrophoresis followed by functionalization with anti-SAA antibodies. The nano-immunosensors exhibited excellent sensitivity over the clinically relevant range (19 to 308 U ml(-1)) with a limit of detection (LOD) of 6 µg ml(-1) (0.6 U ml(-1)) and 7.8 µg ml(-1) (0.78 U ml(-1)) in phosphate buffer and artificial saliva, respectively, and no interference from other components of saliva. This label-free nano-immunosensor technology has potential application in clinical diagnosis for stress biomarkers expressed in human saliva at the point-of-care.
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Affiliation(s)
- Chaker Tlili
- Department of Chemical and Environmental Engineering, University of California, Riverside, California 92521, USA
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147
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Wang HP, Lai KY, Lin YR, Lin CA, He JH. Periodic si nanopillar arrays fabricated by colloidal lithography and catalytic etching for broadband and omnidirectional elimination of Fresnel reflection. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:12855-12858. [PMID: 20666420 DOI: 10.1021/la1012507] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Periodic Si nanopillar arrays (NPAs) were fabricated by the colloidal lithography combined with catalytic etching. By varying the size of colloidal crystals using oxygen plasma etching, Si NPAs with desirable diameter and fill factor could be obtained. The Fresnel reflection can be eliminated effectively over broadband regions by NPAs; i.e., the wavelength-averaged specular reflectance is decreased to 0.70% at wavelengths of 200-1900 nm. The reflectance is reduced greatly for the incident angles up to 70 degrees for both s- and p-polarized light. These excellent antireflection performances are attributed to light trapping effect and very low effective refractive indices, which can be modified by the fill factor of Si in the NPA layers.
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Affiliation(s)
- Hsin-Ping Wang
- Institute of Photonics and Optoelectronics, National Taiwan University, Taipei, 106 Taiwan, ROC
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148
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Park M, Cella LN, Chen W, Myung NV, Mulchandani A. Carbon nanotubes-based chemiresistive immunosensor for small molecules: detection of nitroaromatic explosives. Biosens Bioelectron 2010; 26:1297-301. [PMID: 20688506 DOI: 10.1016/j.bios.2010.07.017] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2010] [Revised: 06/27/2010] [Accepted: 07/06/2010] [Indexed: 10/19/2022]
Abstract
In recent years, there has been a growing focus on use of one-dimensional (1-D) nanostructures, such as carbon nanotubes and nanowires, as transducer elements for label-free chemiresistive/field-effect transistor biosensors as they provide label-free and high sensitivity detection. While research to-date has elucidated the power of carbon nanotubes- and other 1-D nanostructure-based field effect transistors immunosensors for large charged macromolecules such as proteins and viruses, their application to small uncharged or charged molecules has not been demonstrated. In this paper we report a single-walled carbon nanotubes (SWNTs)-based chemiresistive immunosensor for label-free, rapid, sensitive and selective detection of 2,4,6-trinitrotoluene (TNT), a small molecule. The newly developed immunosensor employed a displacement mode/format in which SWNTs network forming conduction channel of the sensor was first modified with trinitrophenyl (TNP), an analog of TNT, and then ligated with the anti-TNP single chain antibody. Upon exposure to TNT or its derivatives the bound antibodies were displaced producing a large change, several folds higher than the noise, in the resistance/conductance of SWNTs giving excellent limit of detection, sensitivity and selectivity. The sensor detected between 0.5 ppb and 5000 ppb TNT with good selectivity to other nitroaromatic explosives and demonstrated good accuracy for monitoring TNT in untreated environmental water matrix. We believe this new displacement format can be easily generalized to other one-dimensional nanostructure-based chemiresistive immuno/affinity-sensors for detecting small and/or uncharged molecules of interest in environmental monitoring and health care.
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Affiliation(s)
- Miso Park
- Department of Chemical and Environmental Engineering, University of California, Riverside, CA 92521, USA
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149
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Ansari AA, Alhoshan M, Alsalhi MS, Aldwayyan AS. Prospects of nanotechnology in clinical immunodiagnostics. SENSORS 2010; 10:6535-81. [PMID: 22163566 PMCID: PMC3231125 DOI: 10.3390/s100706535] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/30/2010] [Revised: 06/12/2010] [Accepted: 06/30/2010] [Indexed: 01/08/2023]
Abstract
Nanostructured materials are promising compounds that offer new opportunities as sensing platforms for the detection of biomolecules. Having micrometer-scale length and nanometer-scale diameters, nanomaterials can be manipulated with current nanofabrication methods, as well as self-assembly techniques, to fabricate nanoscale bio-sensing devices. Nanostructured materials possess extraordinary physical, mechanical, electrical, thermal and multifunctional properties. Such unique properties advocate their use as biomimetic membranes to immobilize and modify biomolecules on the surface of nanoparticles. Alignment, uniform dispersion, selective growth and diameter control are general parameters which play critical roles in the successful integration of nanostructures for the fabrication of bioelectronic sensing devices. In this review, we focus on different types and aspects of nanomaterials, including their synthesis, properties, conjugation with biomolecules and their application in the construction of immunosensing devices. Some key results from each cited article are summarized by relating the concept and mechanism behind each sensor, experimental conditions and the behavior of the sensor under different conditions, etc. The variety of nanomaterial-based bioelectronic devices exhibiting novel functions proves the unique properties of nanomaterials in such sensing devices, which will surely continue to expand in the future. Such nanomaterial based devices are expected to have a major impact in clinical immunodiagnostics, environmental monitoring, security surveillance and for ensuring food safety.
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Affiliation(s)
- Anees A. Ansari
- King Abdullah Institute for Nanotechnology, King Saud University, Riyadh-11451, P.O. Box-2455, Saudi Arabia; E-Mails: (M.S.A.); (A.S.A.)
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +966-1-4676838; Fax: +966-1-0545797441
| | - Mansour Alhoshan
- King Abdullah Institute for Nanotechnology, King Saud University, Riyadh-11451, P.O. Box-2455, Saudi Arabia; E-Mails: (M.S.A.); (A.S.A.)
- Department of Chemical Engineering, College of Engineering, King Saud University, Riyadh-11451, P.O. Box-2454, Saudi Arabia, E-Mail:
| | - Mohamad S. Alsalhi
- King Abdullah Institute for Nanotechnology, King Saud University, Riyadh-11451, P.O. Box-2455, Saudi Arabia; E-Mails: (M.S.A.); (A.S.A.)
- Department of Physics and Astronomy, College of Science, King Saud University, Riyadh-11451, P.O. Box-2455, Saudi Arabia
| | - Abdullah S. Aldwayyan
- King Abdullah Institute for Nanotechnology, King Saud University, Riyadh-11451, P.O. Box-2455, Saudi Arabia; E-Mails: (M.S.A.); (A.S.A.)
- Department of Physics and Astronomy, College of Science, King Saud University, Riyadh-11451, P.O. Box-2455, Saudi Arabia
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García-Aljaro C, Bangar MA, Baldrich E, Muñoz FJ, Mulchandani A. Conducting polymer nanowire-based chemiresistive biosensor for the detection of bacterial spores. Biosens Bioelectron 2010; 25:2309-12. [DOI: 10.1016/j.bios.2010.03.021] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2010] [Revised: 03/15/2010] [Accepted: 03/16/2010] [Indexed: 10/19/2022]
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