Labeled magnetic nanoparticles assembly on polypyrrole film for biosensor applications
In recent years, conducting polymers combined with metallic nanoparticles have been paid more attention due to their potential applications in microelectronics, microsystems, optical sensors and photoelectronic chemistry. The work presented in this paper describes the preparation and characterizatio...
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| Veröffentlicht in: | Talanta (Oxford) 2008-05, Vol.75 (3), p.740-747 |
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| creator | Fredj, H. Ben Helali, S. Esseghaier, C. Vonna, L. Vidal, L. Abdelghani, A. |
| description | In recent years, conducting polymers combined with metallic nanoparticles have been paid more attention due to their potential applications in microelectronics, microsystems, optical sensors and photoelectronic chemistry. The work presented in this paper describes the preparation and characterization of a nanocomposite composed by a thin polypyrrole (PPy) film covered with an assembly of magnetic nanoparticles (NPs). The magnetic particles were immobilized on PPy films under appropriate magnetic field in order to control their organization on the PPy film and finally to improve the sensitivity of the system in potential sensing applications. The electrical properties and morphology of the resulting PPy film and the PPy film/NPs composite were characterized with cyclic voltammetry, impedance spectroscopy (IS), scanning electron microscopy (SEM), atomic force microscopy (AFM) and infra-red spectroscopy (IR). By using streptavidin labeled magnetic particles it was possible to functionalize the NPs assembly with biotin-Fab fragment K47 antibody. The designed biosensor had been successfully applied in rapid, simple, and accurate measurements of atrazine concentrations, with a significantly low detection limit of 5
ng/ml. |
| doi_str_mv | 10.1016/j.talanta.2007.12.034 |
| format | Article |
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ng/ml.</description><subject>Analytical chemistry</subject><subject>Atrazine - analysis</subject><subject>Atrazine - chemistry</subject><subject>Biological and medical sciences</subject><subject>Biosensing Techniques - instrumentation</subject><subject>Biosensor</subject><subject>Biosensors</subject><subject>Biotechnology</subject><subject>Chemistry</subject><subject>Exact sciences and technology</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>General, instrumentation</subject><subject>Impedance spectroscopy</subject><subject>Magnetic beads</subject><subject>Magnetics</subject><subject>Methods. Procedures. Technologies</subject><subject>Microscopy, Atomic Force</subject><subject>Microscopy, Electron, Scanning</subject><subject>Nanoparticles</subject><subject>Polymers - chemistry</subject><subject>Polypyrrole</subject><subject>Pyrroles - chemistry</subject><subject>Spectrometric and optical methods</subject><subject>Spectroscopy, Fourier Transform Infrared</subject><subject>Streptavidin - chemistry</subject><subject>Surface Properties</subject><subject>Various methods and equipments</subject><issn>0039-9140</issn><issn>1873-3573</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkE1v1DAQhq0K1G4LPwGUC9wS_JXYPiFUQUFaiQvt1Zo4E-SVYwc7i7T_vlltBMee5tXomQ89hLxjtGGUdZ8OzQIB4gINp1Q1jDdUyCuyY1qJWrRKvCI7SoWpDZP0htyWcqCUckHFNblhutXt2t-Rpz30GHCoJvgdcfGuihDTDHmNAUsFpeDUh1OVYjWncJpPOaeA1ejDVI0pV71PBWNZE8xz8A4Wn2J5Q16PEAq-3eodefz29df993r_8-HH_Zd97SSXSw1KjUL1PXPOCDkyp3tGtULV9QgKtXGso50WPedSSKE4Rw0DaNRcK2ekuCMfL3vnnP4csSx28sVhWM1gOhbbGa4ZM-ZFkJlWKsPoCrYX0OVUSsbRztlPkE-WUXs2bw92M2_P5i3jdjW_zr3fDhz7CYf_U5vqFfiwAVAchDFDdL784zjlmnN95j5fOFy9_fWYbXEeo8PBZ3SLHZJ_4ZVnYYylEw</recordid><startdate>20080515</startdate><enddate>20080515</enddate><creator>Fredj, H. Ben</creator><creator>Helali, S.</creator><creator>Esseghaier, C.</creator><creator>Vonna, L.</creator><creator>Vidal, L.</creator><creator>Abdelghani, A.</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QO</scope><scope>7U7</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>P64</scope><scope>7X8</scope></search><sort><creationdate>20080515</creationdate><title>Labeled magnetic nanoparticles assembly on polypyrrole film for biosensor applications</title><author>Fredj, H. Ben ; Helali, S. ; Esseghaier, C. ; Vonna, L. ; Vidal, L. ; Abdelghani, A.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c424t-a77f37bb1cc934f1c8b1087e76bea7e89c160683b224343722e8ada8e8287c943</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2008</creationdate><topic>Analytical chemistry</topic><topic>Atrazine - analysis</topic><topic>Atrazine - chemistry</topic><topic>Biological and medical sciences</topic><topic>Biosensing Techniques - instrumentation</topic><topic>Biosensor</topic><topic>Biosensors</topic><topic>Biotechnology</topic><topic>Chemistry</topic><topic>Exact sciences and technology</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>General, instrumentation</topic><topic>Impedance spectroscopy</topic><topic>Magnetic beads</topic><topic>Magnetics</topic><topic>Methods. Procedures. 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Ben</creatorcontrib><creatorcontrib>Helali, S.</creatorcontrib><creatorcontrib>Esseghaier, C.</creatorcontrib><creatorcontrib>Vonna, L.</creatorcontrib><creatorcontrib>Vidal, L.</creatorcontrib><creatorcontrib>Abdelghani, A.</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Biotechnology Research Abstracts</collection><collection>Toxicology Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>MEDLINE - Academic</collection><jtitle>Talanta (Oxford)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Fredj, H. Ben</au><au>Helali, S.</au><au>Esseghaier, C.</au><au>Vonna, L.</au><au>Vidal, L.</au><au>Abdelghani, A.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Labeled magnetic nanoparticles assembly on polypyrrole film for biosensor applications</atitle><jtitle>Talanta (Oxford)</jtitle><addtitle>Talanta</addtitle><date>2008-05-15</date><risdate>2008</risdate><volume>75</volume><issue>3</issue><spage>740</spage><epage>747</epage><pages>740-747</pages><issn>0039-9140</issn><eissn>1873-3573</eissn><coden>TLNTA2</coden><abstract>In recent years, conducting polymers combined with metallic nanoparticles have been paid more attention due to their potential applications in microelectronics, microsystems, optical sensors and photoelectronic chemistry. The work presented in this paper describes the preparation and characterization of a nanocomposite composed by a thin polypyrrole (PPy) film covered with an assembly of magnetic nanoparticles (NPs). The magnetic particles were immobilized on PPy films under appropriate magnetic field in order to control their organization on the PPy film and finally to improve the sensitivity of the system in potential sensing applications. The electrical properties and morphology of the resulting PPy film and the PPy film/NPs composite were characterized with cyclic voltammetry, impedance spectroscopy (IS), scanning electron microscopy (SEM), atomic force microscopy (AFM) and infra-red spectroscopy (IR). By using streptavidin labeled magnetic particles it was possible to functionalize the NPs assembly with biotin-Fab fragment K47 antibody. The designed biosensor had been successfully applied in rapid, simple, and accurate measurements of atrazine concentrations, with a significantly low detection limit of 5
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| subjects | Analytical chemistry Atrazine - analysis Atrazine - chemistry Biological and medical sciences Biosensing Techniques - instrumentation Biosensor Biosensors Biotechnology Chemistry Exact sciences and technology Fundamental and applied biological sciences. Psychology General, instrumentation Impedance spectroscopy Magnetic beads Magnetics Methods. Procedures. Technologies Microscopy, Atomic Force Microscopy, Electron, Scanning Nanoparticles Polymers - chemistry Polypyrrole Pyrroles - chemistry Spectrometric and optical methods Spectroscopy, Fourier Transform Infrared Streptavidin - chemistry Surface Properties Various methods and equipments |
| title | Labeled magnetic nanoparticles assembly on polypyrrole film for biosensor applications |
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