Poly(glutamic acid) nanofibre modified glassy carbon electrode: Characterization by atomic force microscopy, voltammetry and electrochemical impedance

Poly(glutamic acid) nanofibre modified glassy carbon electrode: Characterization by atomic force microscopy, voltammetry and electrochemical impedance

Glassy carbon electrodes (GCE) were modified with poly(glutamic acid) acid films prepared using three different procedures: glutamic acid monomer electropolymerization (MONO), evaporation of poly(glutamic acid) (PAG) and evaporation of a mixture of poly(glutamic acid)/glutaraldehyde (PAG/GLU). All t...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Electrochimica acta 2008-04, Vol.53 (11), p.3991-4000
Hauptverfasser: Santos, Daniela Pereira, Zanoni, Maria Valnice Boldrin, Bergamini, Márcio Fernando, Chiorcea-Paquim, Ana-Maria, Diculescu, Victor Constantin, Oliveira Brett, Ana-Maria
Format: Artikel
Sprache:eng
Schlagworte:
Atomic force microscopy (AFM)
Electrochemical impedance spectroscopy (EIS)
Modified electrode
Nanofibres
Poly(glutamic acid) (PAG)
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page 4000
container_issue 11
container_start_page 3991
container_title Electrochimica acta
container_volume 53
creator Santos, Daniela Pereira
Zanoni, Maria Valnice Boldrin
Bergamini, Márcio Fernando
Chiorcea-Paquim, Ana-Maria
Diculescu, Victor Constantin
Oliveira Brett, Ana-Maria
description Glassy carbon electrodes (GCE) were modified with poly(glutamic acid) acid films prepared using three different procedures: glutamic acid monomer electropolymerization (MONO), evaporation of poly(glutamic acid) (PAG) and evaporation of a mixture of poly(glutamic acid)/glutaraldehyde (PAG/GLU). All three films showed good adherence to the electrode surface. The performance of the modified GCE was investigated by cyclic voltammetry and differential pulse voltammetry, and the films were characterized by atomic force microscopy (AFM) and electrochemical impedance spectroscopy (EIS). The three poly(glutamic acid) modified GCEs were tested using the electrochemical oxidation of ascorbic acid and a decrease of the overpotential and the improvement of the oxidation peak current was observed. The PAG modified electrode surfaces gave the best results. AFM morphological images showed a polymeric network film formed by well-defined nanofibres that may undergo extensive swelling in solution, allowing an easier electron transfer and higher oxidation peaks.
doi_str_mv 10.1016/j.electacta.2007.08.072
format Article
fullrecord <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_32546658</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><els_id>S0013468607010882</els_id><sourcerecordid>32546658</sourcerecordid><originalsourceid>FETCH-LOGICAL-c461t-fa58b9b86d4212702a21ea6d5a2e95cb9e547757065c2c642b7adafb0da55f063</originalsourceid><addsrcrecordid>eNqFkU9r3DAQxUVpoNskn6E6lRRqV5ItydtbWPoPAskhOYuxNE60yNZW8gbcD5LPG2236TUwMIf5zXs8HiEfOKs54-rLtsaAdoYytWBM16yrmRZvyIp3uqmaTq7fkhVjvKla1al35H3OW1ZApdmKPN3EsFzch_0Mo7cUrHef6ARTHHyfkI7R-cGjo_cBcl6ohdTHif51TNHhV7p5gFS8Mfk_MPty6xcKczyIDTHZIuFtitnG3fKZPsZQfEacU4Em96JjH7BQEKgfd-hgsnhGTgYIGc__7VNy9_3b7eZndXX949fm8qqyreJzNYDs-nXfKdcKLjQTIDiCchIErqXt1yhbraVmSlphVSt6DQ6GnjmQcmCqOSUfj7q7FH_vMc9m9NliCDBh3GfTCNkqJbsC6iN4CJMTDmaX_AhpMZyZQw9ma_73YA49GNaZ0kP5vDx-Ysnx6DGZbD2WjM6nwhsX_asaz9aLmiY</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>32546658</pqid></control><display><type>article</type><title>Poly(glutamic acid) nanofibre modified glassy carbon electrode: Characterization by atomic force microscopy, voltammetry and electrochemical impedance</title><source>Elsevier ScienceDirect Journals</source><creator>Santos, Daniela Pereira ; Zanoni, Maria Valnice Boldrin ; Bergamini, Márcio Fernando ; Chiorcea-Paquim, Ana-Maria ; Diculescu, Victor Constantin ; Oliveira Brett, Ana-Maria</creator><creatorcontrib>Santos, Daniela Pereira ; Zanoni, Maria Valnice Boldrin ; Bergamini, Márcio Fernando ; Chiorcea-Paquim, Ana-Maria ; Diculescu, Victor Constantin ; Oliveira Brett, Ana-Maria</creatorcontrib><description>Glassy carbon electrodes (GCE) were modified with poly(glutamic acid) acid films prepared using three different procedures: glutamic acid monomer electropolymerization (MONO), evaporation of poly(glutamic acid) (PAG) and evaporation of a mixture of poly(glutamic acid)/glutaraldehyde (PAG/GLU). All three films showed good adherence to the electrode surface. The performance of the modified GCE was investigated by cyclic voltammetry and differential pulse voltammetry, and the films were characterized by atomic force microscopy (AFM) and electrochemical impedance spectroscopy (EIS). The three poly(glutamic acid) modified GCEs were tested using the electrochemical oxidation of ascorbic acid and a decrease of the overpotential and the improvement of the oxidation peak current was observed. The PAG modified electrode surfaces gave the best results. AFM morphological images showed a polymeric network film formed by well-defined nanofibres that may undergo extensive swelling in solution, allowing an easier electron transfer and higher oxidation peaks.</description><identifier>ISSN: 0013-4686</identifier><identifier>EISSN: 1873-3859</identifier><identifier>DOI: 10.1016/j.electacta.2007.08.072</identifier><language>eng</language><publisher>Elsevier Ltd</publisher><subject>Atomic force microscopy (AFM) ; Electrochemical impedance spectroscopy (EIS) ; Modified electrode ; Nanofibres ; Poly(glutamic acid) (PAG)</subject><ispartof>Electrochimica acta, 2008-04, Vol.53 (11), p.3991-4000</ispartof><rights>2007 Elsevier Ltd</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c461t-fa58b9b86d4212702a21ea6d5a2e95cb9e547757065c2c642b7adafb0da55f063</citedby><cites>FETCH-LOGICAL-c461t-fa58b9b86d4212702a21ea6d5a2e95cb9e547757065c2c642b7adafb0da55f063</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0013468607010882$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids></links><search><creatorcontrib>Santos, Daniela Pereira</creatorcontrib><creatorcontrib>Zanoni, Maria Valnice Boldrin</creatorcontrib><creatorcontrib>Bergamini, Márcio Fernando</creatorcontrib><creatorcontrib>Chiorcea-Paquim, Ana-Maria</creatorcontrib><creatorcontrib>Diculescu, Victor Constantin</creatorcontrib><creatorcontrib>Oliveira Brett, Ana-Maria</creatorcontrib><title>Poly(glutamic acid) nanofibre modified glassy carbon electrode: Characterization by atomic force microscopy, voltammetry and electrochemical impedance</title><title>Electrochimica acta</title><description>Glassy carbon electrodes (GCE) were modified with poly(glutamic acid) acid films prepared using three different procedures: glutamic acid monomer electropolymerization (MONO), evaporation of poly(glutamic acid) (PAG) and evaporation of a mixture of poly(glutamic acid)/glutaraldehyde (PAG/GLU). All three films showed good adherence to the electrode surface. The performance of the modified GCE was investigated by cyclic voltammetry and differential pulse voltammetry, and the films were characterized by atomic force microscopy (AFM) and electrochemical impedance spectroscopy (EIS). The three poly(glutamic acid) modified GCEs were tested using the electrochemical oxidation of ascorbic acid and a decrease of the overpotential and the improvement of the oxidation peak current was observed. The PAG modified electrode surfaces gave the best results. AFM morphological images showed a polymeric network film formed by well-defined nanofibres that may undergo extensive swelling in solution, allowing an easier electron transfer and higher oxidation peaks.</description><subject>Atomic force microscopy (AFM)</subject><subject>Electrochemical impedance spectroscopy (EIS)</subject><subject>Modified electrode</subject><subject>Nanofibres</subject><subject>Poly(glutamic acid) (PAG)</subject><issn>0013-4686</issn><issn>1873-3859</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><recordid>eNqFkU9r3DAQxUVpoNskn6E6lRRqV5ItydtbWPoPAskhOYuxNE60yNZW8gbcD5LPG2236TUwMIf5zXs8HiEfOKs54-rLtsaAdoYytWBM16yrmRZvyIp3uqmaTq7fkhVjvKla1al35H3OW1ZApdmKPN3EsFzch_0Mo7cUrHef6ARTHHyfkI7R-cGjo_cBcl6ohdTHif51TNHhV7p5gFS8Mfk_MPty6xcKczyIDTHZIuFtitnG3fKZPsZQfEacU4Em96JjH7BQEKgfd-hgsnhGTgYIGc__7VNy9_3b7eZndXX949fm8qqyreJzNYDs-nXfKdcKLjQTIDiCchIErqXt1yhbraVmSlphVSt6DQ6GnjmQcmCqOSUfj7q7FH_vMc9m9NliCDBh3GfTCNkqJbsC6iN4CJMTDmaX_AhpMZyZQw9ma_73YA49GNaZ0kP5vDx-Ysnx6DGZbD2WjM6nwhsX_asaz9aLmiY</recordid><startdate>20080420</startdate><enddate>20080420</enddate><creator>Santos, Daniela Pereira</creator><creator>Zanoni, Maria Valnice Boldrin</creator><creator>Bergamini, Márcio Fernando</creator><creator>Chiorcea-Paquim, Ana-Maria</creator><creator>Diculescu, Victor Constantin</creator><creator>Oliveira Brett, Ana-Maria</creator><general>Elsevier Ltd</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>20080420</creationdate><title>Poly(glutamic acid) nanofibre modified glassy carbon electrode: Characterization by atomic force microscopy, voltammetry and electrochemical impedance</title><author>Santos, Daniela Pereira ; Zanoni, Maria Valnice Boldrin ; Bergamini, Márcio Fernando ; Chiorcea-Paquim, Ana-Maria ; Diculescu, Victor Constantin ; Oliveira Brett, Ana-Maria</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c461t-fa58b9b86d4212702a21ea6d5a2e95cb9e547757065c2c642b7adafb0da55f063</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2008</creationdate><topic>Atomic force microscopy (AFM)</topic><topic>Electrochemical impedance spectroscopy (EIS)</topic><topic>Modified electrode</topic><topic>Nanofibres</topic><topic>Poly(glutamic acid) (PAG)</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Santos, Daniela Pereira</creatorcontrib><creatorcontrib>Zanoni, Maria Valnice Boldrin</creatorcontrib><creatorcontrib>Bergamini, Márcio Fernando</creatorcontrib><creatorcontrib>Chiorcea-Paquim, Ana-Maria</creatorcontrib><creatorcontrib>Diculescu, Victor Constantin</creatorcontrib><creatorcontrib>Oliveira Brett, Ana-Maria</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Electrochimica acta</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Santos, Daniela Pereira</au><au>Zanoni, Maria Valnice Boldrin</au><au>Bergamini, Márcio Fernando</au><au>Chiorcea-Paquim, Ana-Maria</au><au>Diculescu, Victor Constantin</au><au>Oliveira Brett, Ana-Maria</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Poly(glutamic acid) nanofibre modified glassy carbon electrode: Characterization by atomic force microscopy, voltammetry and electrochemical impedance</atitle><jtitle>Electrochimica acta</jtitle><date>2008-04-20</date><risdate>2008</risdate><volume>53</volume><issue>11</issue><spage>3991</spage><epage>4000</epage><pages>3991-4000</pages><issn>0013-4686</issn><eissn>1873-3859</eissn><abstract>Glassy carbon electrodes (GCE) were modified with poly(glutamic acid) acid films prepared using three different procedures: glutamic acid monomer electropolymerization (MONO), evaporation of poly(glutamic acid) (PAG) and evaporation of a mixture of poly(glutamic acid)/glutaraldehyde (PAG/GLU). All three films showed good adherence to the electrode surface. The performance of the modified GCE was investigated by cyclic voltammetry and differential pulse voltammetry, and the films were characterized by atomic force microscopy (AFM) and electrochemical impedance spectroscopy (EIS). The three poly(glutamic acid) modified GCEs were tested using the electrochemical oxidation of ascorbic acid and a decrease of the overpotential and the improvement of the oxidation peak current was observed. The PAG modified electrode surfaces gave the best results. AFM morphological images showed a polymeric network film formed by well-defined nanofibres that may undergo extensive swelling in solution, allowing an easier electron transfer and higher oxidation peaks.</abstract><pub>Elsevier Ltd</pub><doi>10.1016/j.electacta.2007.08.072</doi><tpages>10</tpages><oa>free_for_read</oa></addata></record>
fulltext fulltext
identifier ISSN: 0013-4686
ispartof Electrochimica acta, 2008-04, Vol.53 (11), p.3991-4000
issn 0013-4686
1873-3859
language eng
recordid cdi_proquest_miscellaneous_32546658
source Elsevier ScienceDirect Journals
subjects Atomic force microscopy (AFM)
Electrochemical impedance spectroscopy (EIS)
Modified electrode
Nanofibres
Poly(glutamic acid) (PAG)
title Poly(glutamic acid) nanofibre modified glassy carbon electrode: Characterization by atomic force microscopy, voltammetry and electrochemical impedance
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-04T13%3A08%3A22IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Poly(glutamic%20acid)%20nanofibre%20modified%20glassy%20carbon%20electrode:%20Characterization%20by%20atomic%20force%20microscopy,%20voltammetry%20and%20electrochemical%20impedance&rft.jtitle=Electrochimica%20acta&rft.au=Santos,%20Daniela%20Pereira&rft.date=2008-04-20&rft.volume=53&rft.issue=11&rft.spage=3991&rft.epage=4000&rft.pages=3991-4000&rft.issn=0013-4686&rft.eissn=1873-3859&rft_id=info:doi/10.1016/j.electacta.2007.08.072&rft_dat=%3Cproquest_cross%3E32546658%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=32546658&rft_id=info:pmid/&rft_els_id=S0013468607010882&rfr_iscdi=true