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Overoxidized polypyrrole film directed single-walled carbon nanotubes immobilization on glassy carbon electrode and its sensing applications.
Biosens Bioelectron. 2007 Jun 15; 22(12):3120-5.BB

Abstract

In this paper, the films of overoxidized polypyrrole (PPyox) directed single-walled carbon nanotubes (SWNTs) have been electrochemically coated onto glassy carbon electrode (GCE). Electroactive monomer pyrrole was added into the solution containing sodium dodecyl sulfate (SDS) and SWNTs. Then, electropolymerization was proceeded at the surface of GCE, and a novel kind of conducting polymer/carbon nanotubes (CNTs) composite film with the orientation of CNTs were obtained correspondingly. Finally, this obtained polypyrrole (PPy)/SWNTs film modified GCE was oxidized at a potential of +1.8 V. It can be found that this proposed PPyox/SWNTs composite film modified GCE exhibited excellent electrocatalytic properties for some species such as nitrite, ascorbic acid (AA), dopamine (DA) and uric acid (UA), and could be used as a new sensor for practical applications. Compared with previous CNTs modified electrodes, SWNTs were oriented towards the outside of modified layer by PPyox and SDS, which made the film easily conductive. Moreover, this proposed film modified electrode was more stable, selective and applicable.

Authors+Show Affiliations

Anhui Key Laboratory of Functional Molecular Solids, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, PR China. yongli@mail.ahnu.edu.cnNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

17350819

Citation

Li, Yongxin, et al. "Overoxidized Polypyrrole Film Directed Single-walled Carbon Nanotubes Immobilization On Glassy Carbon Electrode and Its Sensing Applications." Biosensors & Bioelectronics, vol. 22, no. 12, 2007, pp. 3120-5.
Li Y, Wang P, Wang L, et al. Overoxidized polypyrrole film directed single-walled carbon nanotubes immobilization on glassy carbon electrode and its sensing applications. Biosens Bioelectron. 2007;22(12):3120-5.
Li, Y., Wang, P., Wang, L., & Lin, X. (2007). Overoxidized polypyrrole film directed single-walled carbon nanotubes immobilization on glassy carbon electrode and its sensing applications. Biosensors & Bioelectronics, 22(12), 3120-5.
Li Y, et al. Overoxidized Polypyrrole Film Directed Single-walled Carbon Nanotubes Immobilization On Glassy Carbon Electrode and Its Sensing Applications. Biosens Bioelectron. 2007 Jun 15;22(12):3120-5. PubMed PMID: 17350819.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Overoxidized polypyrrole film directed single-walled carbon nanotubes immobilization on glassy carbon electrode and its sensing applications. AU - Li,Yongxin, AU - Wang,Po, AU - Wang,Lun, AU - Lin,Xiangqin, Y1 - 2007/02/11/ PY - 2006/07/28/received PY - 2007/01/27/revised PY - 2007/02/06/accepted PY - 2007/3/14/pubmed PY - 2007/7/27/medline PY - 2007/3/14/entrez SP - 3120 EP - 5 JF - Biosensors & bioelectronics JO - Biosens Bioelectron VL - 22 IS - 12 N2 - In this paper, the films of overoxidized polypyrrole (PPyox) directed single-walled carbon nanotubes (SWNTs) have been electrochemically coated onto glassy carbon electrode (GCE). Electroactive monomer pyrrole was added into the solution containing sodium dodecyl sulfate (SDS) and SWNTs. Then, electropolymerization was proceeded at the surface of GCE, and a novel kind of conducting polymer/carbon nanotubes (CNTs) composite film with the orientation of CNTs were obtained correspondingly. Finally, this obtained polypyrrole (PPy)/SWNTs film modified GCE was oxidized at a potential of +1.8 V. It can be found that this proposed PPyox/SWNTs composite film modified GCE exhibited excellent electrocatalytic properties for some species such as nitrite, ascorbic acid (AA), dopamine (DA) and uric acid (UA), and could be used as a new sensor for practical applications. Compared with previous CNTs modified electrodes, SWNTs were oriented towards the outside of modified layer by PPyox and SDS, which made the film easily conductive. Moreover, this proposed film modified electrode was more stable, selective and applicable. SN - 0956-5663 UR - https://www.unboundmedicine.com/medline/citation/17350819/Overoxidized_polypyrrole_film_directed_single_walled_carbon_nanotubes_immobilization_on_glassy_carbon_electrode_and_its_sensing_applications_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0956-5663(07)00055-3 DB - PRIME DP - Unbound Medicine ER -